/* =========================
   Root Variables & Base Styles
   ========================= */
:root {
    --bg-primary: #0a0a0b;
    --bg-secondary: #1a1a1b;
    --bg-tertiary: #2a2a2b;
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --text-muted: #666666;
    --accent: #913700;
    --accent-blue: #ffe600;
    --border: rgba(255, 255, 255, 0.08);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    --glow: 0 0 20px var(--accent);
    --radius: 16px;
    --radius-sm: 8px;
    --transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), 
                  opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1), 
                  border-color 0.3s cubic-bezier(0.4, 0, 0.2, 1), 
                  background-color 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    scroll-padding-top: 100px; 
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background 0.5s ease, color 0.3s ease;
    padding-top: 70px; 
}

/* =========================
   Apple Liquid Glass Top Panel
   ========================= */
.glass-top-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 70px;
    background: rgba(10, 10, 11, 0.45);
    backdrop-filter: blur(35px) saturate(200%);
    -webkit-backdrop-filter: blur(35px) saturate(200%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    z-index: 9995; 
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-links {
    display: flex;
    gap: 3rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    transition: var(--transition);
    position: relative;
}

.nav-links a:hover {
    color: var(--text-primary);
    text-shadow: 0 0 15px rgba(255, 255, 255, 0.4);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 70%;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--accent-blue));
    border-radius: 2px;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 0 10px var(--accent-blue);
}

.nav-links a:hover::after {
    transform: translateX(-50%) scaleX(1);
}

.nav-load-in {
    animation: dropIn 0.8s ease cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes dropIn {
    0% {
        opacity: 0;
        transform: translateY(-30px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* =========================
   High-Performance GPU Canvas Animation
   ========================= */
.bg-canvas {
    position: fixed;
    inset: 0;
    background: #0d0d0f;
    z-index: -1;
    overflow: hidden;
}

.bg-canvas::before,
.bg-canvas::after {
    content: '';
    position: absolute;
    width: 60vw;
    height: 60vw;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.22;
    pointer-events: none;
    will-change: transform;
}

.bg-canvas::before {
    background: var(--accent);
    top: -10%;
    left: -10%;
    animation: floatOrb1 20s infinite alternate ease-in-out;
}

.bg-canvas::after {
    background: var(--accent-blue);
    bottom: -10%;
    right: -10%;
    animation: floatOrb2 20s infinite alternate ease-in-out;
}

@keyframes floatOrb1 {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(15%, 10%) scale(1.1); }
}

@keyframes floatOrb2 {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(-15%, -10%) scale(1.1); }
}

/* =========================
   Layout Containers
   ========================= */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    border-radius: var(--radius);
}

.hero-card {
    position: relative;
    padding: 2.5rem;
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: visible;
    transition: var(--transition);
    will-change: transform, box-shadow;
}

.hero-card:hover {
    transform: translateY(-6px);
    border-color: var(--accent-blue);
    box-shadow: var(--shadow), 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 25px var(--accent);
}

.hero-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--accent), var(--accent-blue));
    opacity: 0.05;
    filter: blur(40px);
    border-radius: var(--radius);
    z-index: 0;
    pointer-events: none;
}

.hero {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    position: relative;
    z-index: 1;
}

.hero-main {
    display: flex;
    align-items: center;
    gap: 2.2rem;
    width: 100%;
}

.avatar-container {
    position: relative;
    display: inline-block;
}

.avatar {
    width: 104px;
    height: 104px;
    border-radius: 50%;
    border: 3px solid var(--accent);
    margin: 0;
    display: block;
    box-shadow: var(--glow);
    transition: var(--transition);
    object-fit: cover;
    background: var(--bg-secondary);
}

.hero-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.7rem;
    min-width: 0;
}

.hero-info h1 {
    font-size: clamp(2.2rem, 6vw, 3.2rem);
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.15rem;
    line-height: 1.1;
    word-break: break-word;
}

.hero-info .hero-subtitle {
    font-size: 1.08rem;
    color: var(--text-secondary);
    margin-bottom: 0.6rem;
    line-height: 1.3;
    word-break: break-word;
}

.social-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.85rem;
    margin: 0;
    justify-content: flex-start;
}

.social-btn {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    padding: 0;
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1),
                border-color 0.25s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.25s cubic-bezier(0.4, 0, 0.2, 1),
                background 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.social-btn:hover {
    transform: translateY(-4px) scale(1.05);
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--accent-blue);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3), 0 0 12px var(--accent);
}

.social-btn i {
    font-size: 1.2rem;
    color: var(--text-secondary);
    transition: color 0.25s ease, transform 0.25s ease;
    z-index: 1;
}

.social-btn:hover i {
    color: #ffffff;
    transform: scale(1.05);
}

.fa-codeberg-custom {
    display: inline-block;
    width: 1em;
    height: 1em;
    background-color: currentColor;
    -webkit-mask: url('https://cdn.jsdelivr.net/npm/simple-icons/icons/codeberg.svg') no-repeat center / contain;
    mask: url('https://cdn.jsdelivr.net/npm/simple-icons/icons/codeberg.svg') no-repeat center / contain;
    vertical-align: -0.125em; 
}

/* =========================
   Modern Theme Picker Styles
   ========================= */
.theme-picker-wrapper {
    position: relative;
}

.theme-toggle {
    position: fixed;
    top: 11px; 
    right: 25px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    cursor: pointer;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.12);
    transform: rotate(25deg) scale(1.05);
    border-color: rgba(255, 255, 255, 0.25);
}

.theme-panel {
    position: fixed;
    top: 80px; 
    right: 25px;
    width: 260px;
    padding: 1.5rem;
    background: rgba(13, 13, 14, 0.85);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 20px;
    color: white;
    z-index: 9998;
    box-shadow: var(--shadow);
    transform-origin: top right;
    transition: opacity 0.3s ease, transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), visibility 0.3s;
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
}

.theme-panel.hidden {
    opacity: 0 !important;
    transform: scale(0.8) translateY(-20px) !important;
    visibility: hidden !important;
    pointer-events: none !important;
}

.theme-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.theme-panel-header h3 {
    font-family: 'Inter', sans-serif;
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: -0.5px;
}

.theme-close-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
    line-height: 1;
}

.theme-close-btn:hover {
    color: var(--text-primary);
}

.theme-section {
    margin-bottom: 1.25rem;
}

.theme-section h4 {
    font-size: 0.8rem;
    text-transform: lowercase;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.theme-presets-grid {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    padding: 2px;
}

.preset-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    position: relative;
    transition: var(--transition);
    background-origin: border-box;
    background-clip: padding-box;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.15), 0 2px 5px rgba(0,0,0,0.2);
}

.preset-btn:hover {
    transform: scale(1.12);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.4), 0 4px 8px rgba(0,0,0,0.3);
}

.preset-btn.active {
    transform: scale(1.08);
    box-shadow: 0 0 0 2px #ffffff, 0 0 15px rgba(255, 255, 255, 0.35);
}

.custom-color-picker-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    padding: 0.65rem 1rem;
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.custom-color-picker-wrapper:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.15);
}

.color-preview-circle {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--accent);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: background 0.2s ease;
    display: inline-block;
    flex-shrink: 0;
}

.color-picker-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    user-select: none;
}

#color-picker {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
    cursor: pointer;
}

/* =========================
   Discord & Standard Cards
   ========================= */
.discord-loading {
    display: none;
    margin-left: 1rem;
    width: 24px;
    height: 24px;
    border: 3px solid var(--border);
    border-top: 3px solid var(--accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    align-self: center;
}
.status-card.loading .discord-loading {
    display: inline-block;
}
.status-card.loading .status-info,
.status-card.loading .discord-icon,
.status-card.loading .status-avatar {
    opacity: 0.4;
    filter: blur(1px);
    pointer-events: none;
}

.card {
    background: rgba(20, 20, 22, 0.85);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--accent), var(--accent-blue));
    opacity: 0;
    transition: var(--transition);
}
.card:hover::before {
    opacity: 0.03;
}
.card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-blue);
    box-shadow: var(--shadow), var(--glow);
}
.card-content {
    position: relative;
    z-index: 1;
}

.status-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 3rem;
}
.status-avatar-wrapper {
    position: relative;
    display: inline-block;
}
.status-avatar {
    display: block;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    position: relative;
}

.discord-status-dot {
    position: absolute;
    bottom: 0px;
    right: -4px;   
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 3px solid var(--bg-primary);
    z-index: 2;
    box-shadow: 0 0 6px rgba(0,0,0,0.3);
    transition: background 0.3s;
}
.status-info h3 {
    font-weight: 600;
    margin-bottom: 0.25rem;
}
.status-info p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}
.discord-icon {
    margin-left: auto;
    color: #5865f2;
    font-size: 1.5rem;
}

/* =========================
   Section Titles & Skills
   ========================= */
.section {
    margin-bottom: 4rem;
}
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 2rem;
    text-align: center;
}
.section-subtitle {
    color: var(--text-secondary);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}
.skill-category h3 {
    color: var(--text-primary);
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
}
.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}
.skill-tag {
    background: rgba(255, 255, 255, 0.06);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid var(--border);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-primary);
}
.skill-tag:hover {
    background: var(--accent);
    color: #ffffff;
    border-color: var(--accent-blue);
    transform: translateY(-2px);
}
hr {
    width: 73%;
    margin: 0 auto;
    border: 0;
    border-top: 1px solid var(--border);
}
.skill-tag i {
    color: var(--accent-blue);
}
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.project-card, .sim-card {
    background: rgba(20, 20, 22, 0.85);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    position: relative;
}

.project-card:hover .project-content,
.sim-card:hover .sim-video-wrapper,
.sim-card:hover .sim-info {
    transform: scale(0.95);
    opacity: 0.15;
}

.project-content {
    padding: 1.5rem;
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.project-content h3 {
    color: var(--text-primary);
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}
.project-tag {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 1rem;
}
.project-content p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.project-links {
    margin-top: 1rem;
    display: flex;
    gap: 1.25rem;
    flex-wrap: wrap;
    align-items: center;
}

.project-links.overlay-links {
    justify-content: center;
    width: 100%;
}

.project-links a {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.default-links {
    margin-top: auto;
    padding-top: 1rem;
}

/* =========================
   GIANT GLASS BUBBLE TOOLTIP
   ========================= */
.glass-bubble {
    position: absolute;
    inset: 15px; 
    background: rgba(10, 10, 11, 0.88);
    backdrop-filter: blur(25px) saturate(200%);
    -webkit-backdrop-filter: blur(25px) saturate(200%);
    border: 1px solid var(--accent-blue);
    border-radius: var(--radius-sm);
    padding: 1.2rem;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    text-align: center;
    
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px) scale(0.92);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 10;
    box-shadow: 0 10px 40px rgba(0,0,0,0.5), inset 0 0 30px rgba(255, 255, 255, 0.03);
    overflow-y: auto; 
}

.glass-bubble-inner {
    margin: auto 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
}

.project-card:hover .glass-bubble,
.sim-card:hover .glass-bubble {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
    box-shadow: 0 10px 50px rgba(0,0,0,0.7), inset 0 0 25px var(--accent);
}

.glass-bubble h4 {
    color: var(--text-primary);
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
    text-transform: lowercase;
    text-shadow: 0 0 10px rgba(255,255,255,0.2);
}

.glass-bubble p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.glass-bubble::-webkit-scrollbar {
    width: 6px;
}
.glass-bubble::-webkit-scrollbar-track {
    background: transparent;
}
.glass-bubble::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 10px;
}
.glass-bubble::-webkit-scrollbar-thumb:hover {
    background: var(--accent-blue);
}

/* =========================
   Expertise Grid
   ========================= */
.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.expertise-card {
    background: rgba(20, 20, 22, 0.85);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2.5rem 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
    cursor: default;
    transition: var(--transition);
}

.expertise-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-blue);
    box-shadow: var(--shadow), 0 10px 25px rgba(0, 0, 0, 0.4), 0 0 15px var(--accent);
    background: rgba(255, 255, 255, 0.05);
}

.expertise-icon {
    font-size: 2.8rem;
    margin-bottom: 1.2rem;
    background: linear-gradient(135deg, var(--accent), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: var(--transition);
}

.expertise-card:hover .expertise-icon {
    transform: scale(1.15) translateY(-5px);
}

.expertise-card h3 {
    color: var(--text-primary);
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1.4;
}

.expertise-tooltip {
    position: absolute;
    bottom: 110%;
    left: 50%;
    transform: translateX(-50%) translateY(15px);
    background: rgba(13, 13, 14, 0.95);
    border: 1px solid var(--border);
    border-bottom: 3px solid var(--accent);
    padding: 1.2rem;
    border-radius: var(--radius-sm);
    width: 260px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    text-align: center;
    box-shadow: var(--shadow), 0 10px 30px rgba(0,0,0,0.6);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    z-index: 100;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.expertise-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -8px;
    border-width: 8px;
    border-style: solid;
    border-color: var(--accent) transparent transparent transparent;
}

.expertise-card:hover .expertise-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

/* =========================
   Utility & Misc
   ========================= */
.text-gradient {
    background: linear-gradient(135deg, var(--accent), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.highlight-link {
    color: var(--accent-blue);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}
.highlight-link:hover {
    color: var(--text-primary);
    text-decoration: underline;
}
.contact-info p {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.copy-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.95rem;
    padding: 0.2rem 0.4rem;
    transition: var(--transition);
    border-radius: 4px;
}
.copy-btn:hover {
    color: var(--accent-blue);
    background: rgba(255, 255, 255, 0.05);
}
.about-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
}
.about-text p {
    margin-bottom: 0.3rem;
}
.footer {
    text-align: center;
    padding: 3rem 0;
    border-top: 1px solid var(--border);
    margin-top: 4rem;
}
.footer p {
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

/* =========================
   Responsive Design Layouts
   ========================= */
@media (max-width: 900px) {
    .hero-main {
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
        padding-left: 0;
    }
    .avatar {
        width: 90px;
        height: 90px;
    }
    .hero-info {
        align-items: center;
        text-align: center;
        width: 100%;
    }
    .social-grid {
        justify-content: center;
    }
}
@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    .skills-grid, .projects-grid, .expertise-grid {
        grid-template-columns: 1fr;
    }
    .status-card {
        flex-direction: column;
        text-align: center;
    }
    .discord-icon {
        margin: 0;
    }
    .nav-links {
        gap: 1.25rem;
    }
    .nav-links a {
        font-size: 0.85rem;
    }
    .theme-toggle {
        width: 40px;
        height: 40px;
        top: 15px; 
        right: 15px;
        font-size: 1rem;
    }
}
@media (max-width: 500px) {
    .avatar {
        width: 70px;
        height: 70px;
    }
    .hero-info h1 {
        font-size: 2rem;
    }
    .social-btn {
        width: 38px;
        height: 38px;
    }
}

/* =========================
   Fade-in Animation
   ========================= */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* =========================
   Custom Scrollbar
   ========================= */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}
::-webkit-scrollbar-thumb {
    background: var(--accent);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-blue);
}

/* =========================
   Loading Screen
   ========================= */
.loading {
    position: fixed;
    inset: 0;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    transition: opacity 0.5s ease;
}
.loading.hidden {
    opacity: 0;
    pointer-events: none;
}
.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top: 3px solid var(--accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* =========================
   Project Cards Hover Glow & Lift
   ========================= */
.project-card:hover, .sim-card:hover {
    transform: translateY(-8px) !important;
    border-color: var(--accent-blue) !important; 
    background: rgba(255, 255, 255, 0.05) !important;
    box-shadow: var(--shadow), 0 8px 25px rgba(0, 0, 0, 0.4), 0 0 20px var(--accent) !important; 
    opacity: 1 !important; 
}

/* =========================
   Content Protection
   ========================= */
body, html, * {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

input, textarea {
    -webkit-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    user-select: text;
}

img {
    -webkit-user-drag: none;
    pointer-events: none;
}

a, button, .project-card, .sim-card, .theme-panel, .custom-color-picker-wrapper, #color-picker {
    pointer-events: auto !important;
}

/* =========================
   Kinetic Planetary Gear System
   ========================= */
.mechanical-gear-assembly {
    position: relative;
    width: 140px;
    height: 140px;
    margin: 1.5rem auto;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 1s cubic-bezier(0.25, 1, 0.5, 1);
    will-change: transform;
}

.gear {
    position: absolute;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    will-change: transform;
}

.gear-sun {
    font-size: 3.5rem;
    color: var(--accent) !important;
    animation: spinClockwise 12s linear infinite;
    z-index: 2;
}

.gear-planet {
    font-size: 2.2rem;
    color: var(--accent-blue) !important;
    animation: spinCounterClockwise 6s linear infinite;
    transform-origin: center center;
}

.planet-1 { --offset-x: 42px;  --offset-y: 0px;   transform: translate(var(--offset-x), var(--offset-y)); }
.planet-2 { --offset-x: -21px; --offset-y: 36px;  transform: translate(var(--offset-x), var(--offset-y)); }
.planet-3 { --offset-x: -21px; --offset-y: -36px; transform: translate(var(--offset-x), var(--offset-y)); }

@keyframes spinClockwise {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes spinCounterClockwise {
    from { transform: rotate(0deg); }
    to { transform: rotate(-360deg); }
}

.mechanical-gear-assembly:hover {
    transform: rotate(180deg);
}

.loading-screen {
    position: fixed;
    inset: 0;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}
.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.aesthetic-divider {
    border: 0;
    height: 1px;
    width: 85%;
    margin: 4rem auto;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.05), var(--accent), rgba(255, 255, 255, 0.05), transparent);
    position: relative;
    overflow: visible;
    opacity: 0.8;
}

.aesthetic-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 50px;
    height: 3px;
    background: var(--accent-blue);
    box-shadow: 0 0 15px var(--accent-blue), 0 0 30px var(--accent);
    border-radius: 10px;
}

/* =========================
   Buttons & Submit
   ========================= */
.submit-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    background: linear-gradient(135deg, var(--accent), var(--accent-blue));
    color: var(--bg-primary);
    border: none;
    border-radius: var(--radius-sm);
    padding: 1rem;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: transform 0.2s cubic-bezier(0.2, 0, 0, 1), box-shadow 0.2s ease, filter 0.2s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5), 0 0 20px var(--accent);
    filter: brightness(1.1);
}

.submit-btn:active {
    transform: translateY(1px) scale(0.96);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.4), 0 0 10px var(--accent);
    filter: brightness(0.9);
    transition: transform 0.1s ease, box-shadow 0.1s ease;
}

/* Modern Overview Button */
.mini-btn {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: var(--text-primary);
    padding: 0.4rem 1rem;
    border-radius: 30px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    font-family: inherit;
    backdrop-filter: blur(10px);
}

.mini-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3), inset 0 0 10px rgba(255, 255, 255, 0.05);
}

.mini-btn:active {
    transform: translateY(0) scale(0.98);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.discord-status-aesthetic {
    position: relative;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    flex-shrink: 0;
}

.discord-status-aesthetic.status-online {
    width: 18px;
    height: 18px;
    background-color: #39a659;
    border-radius: 50%;
    box-shadow: 0 0 14px rgba(57, 166, 89, 0.35);
}

.discord-status-aesthetic.status-idle {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background-color: transparent;
    box-shadow: -5px 5px 0 0 #e8a639;
    transform: rotate(-15deg) translate(3px, -3px);
}

.discord-status-aesthetic.status-dnd {
    width: 18px;
    height: 18px;
    background-color: #f23f43;
    border-radius: 50%;
    box-shadow: 0 0 14px rgba(242, 63, 67, 0.35);
}
.discord-status-aesthetic.status-dnd::after {
    content: '';
    position: absolute;
    width: 10px;
    height: 2.5px;
    background-color: #ffffff;
    border-radius: 2px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.discord-status-aesthetic.status-offline {
    width: 16px;
    height: 16px;
    background-color: transparent;
    border: 2px solid #80848e;
    border-radius: 50%;
    opacity: 0.7;
}

.in-progress-badge {
    position: absolute;
    top: 1.25rem;   
    right: 1.25rem;
    background: rgba(255, 255, 255, 0.05); 
    backdrop-filter: blur(10px) saturate(180%); 
    -webkit-backdrop-filter: blur(10px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-primary); 
    font-size: 0.65rem; 
    font-weight: 700;
    padding: 0.25rem 0.6rem;
    border-radius: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.in-progress-badge i {
    font-size: 0.7rem;
    color: var(--accent-blue);
}

/* =========================
   WIKI WIDGET ADDITIONS & MODALS
   ========================= */
.wiki-toggle {
    position: fixed;
    top: 11px; 
    right: 85px; 
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    cursor: pointer;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.wiki-toggle:hover {
    background: rgba(255, 255, 255, 0.12);
    transform: rotate(-10deg) scale(1.05);
    border-color: rgba(255, 255, 255, 0.25);
}

.wiki-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 1000000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    opacity: 1;
    visibility: visible;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.wiki-modal-overlay.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.wiki-modal-content {
    background: rgba(20, 20, 22, 0.4); 
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 30px rgba(255, 255, 255, 0.05), inset 0 0 20px rgba(255, 255, 255, 0.02);
    border-radius: var(--radius);
    width: max-content; 
    max-width: 95vw; 
    align-items: center;
    padding: 1.5rem;
    position: relative;
    transform: translateY(0) scale(1);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.wiki-modal-overlay.hidden .wiki-modal-content {
    transform: translateY(30px) scale(0.95);
}

.overview-modal-content {
    max-width: 650px;
    max-height: 85vh;
    overflow-y: auto;
    text-align: left;
    align-items: flex-start;
}

.overview-modal-content .overview-header {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
    width: 100%;
}

.overview-modal-content h3 {
    color: var(--accent);
    font-size: 1.5rem;
    line-height: 1.3;
}

.overview-modal-content h4 {
    color: var(--text-primary);
    margin-bottom: 0.4rem;
    font-size: 1.1rem;
}

.overview-modal-content p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.wiki-close-btn {
    position: absolute;
    top: -12px;
    right: -12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 50%;
    width: 36px;
    height: 36px;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    z-index: 2;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

.wiki-close-btn:hover {
    color: var(--text-primary);
    background: var(--accent);
    border-color: var(--accent-blue);
    transform: scale(1.1);
}

.wiki-image-container {
    width: auto;
    height: auto; 
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
}

.wiki-image-container img {
    max-width: 100%;
    max-height: 70vh; 
    width: auto;
    height: auto;
    object-fit: contain; 
    border-radius: var(--radius-sm);
    display: block;
}

.wiki-refresh-btn {
    align-self: center;
    background: rgba(20, 20, 22, 0.4);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--accent); 
    color: var(--accent); 
    box-shadow: 0 0 15px color-mix(in srgb, var(--accent) 30%, transparent); 
    padding: 0.75rem 1.75rem;
    border-radius: 25px;
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    transition: all 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    outline: none;
    white-space: nowrap; 
}

.wiki-refresh-btn:hover {
    transform: translateY(-3px);
    background: color-mix(in srgb, var(--accent) 15%, transparent);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4), 0 0 25px color-mix(in srgb, var(--accent) 45%, transparent);
    border-color: var(--accent);
}

.wiki-refresh-btn:active {
    transform: scale(0.92) translateY(2px);
    box-shadow: 0 0 10px color-mix(in srgb, var(--accent) 60%, transparent), inset 0 0 15px color-mix(in srgb, var(--accent) 25%, transparent);
    background: color-mix(in srgb, var(--accent) 25%, transparent);
}

/* =========================
   Dynamics Simulations
   ========================= */
.simulations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.sim-video-wrapper {
    width: 100%;
    aspect-ratio: 3/2;
    background: #000;
    overflow: hidden;
    position: relative;
    border-bottom: 1px solid var(--border);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.sim-video-wrapper video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: opacity 0.3s ease;
}

.sim-info {
    padding: 1.2rem;
    flex-grow: 1;
    display: flex;
    align-items: flex-start;
    flex-direction: column;
    justify-content: space-between;
    gap: 0.8rem;
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.sim-info h4 {
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 600;
    margin: 0;
}

.sim-modal-content {
    max-width: 900px;
    width: 90%;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    padding: 2rem;
}

.sim-video-container {
    width: 100%;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: #000;
    border: 1px solid var(--border);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.sim-video-container video {
    width: 100%;
    height: auto;
    display: block;
}

.sim-caption {
    text-align: left;
}

.sim-caption h3 {
    color: var(--accent);
    margin-bottom: 0.8rem;
    font-size: 1.4rem;
}

.sim-caption p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* =========================
   Full Portfolio Overlay Page
   ========================= */
.full-page-overlay {
    position: fixed;
    inset: 0;
    background: var(--bg-primary);
    z-index: 100000;
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 0; 
}

.full-page-overlay.active {
    transform: translateX(0);
}

.overlay-header {
    position: sticky;
    top: 0;
    background: rgba(10, 10, 11, 0.85);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    z-index: 100;
    margin-bottom: 2rem;
}

.overlay-nav-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: inherit;
    font-weight: 500;
}

.overlay-nav-btn:hover {
    background: var(--accent);
    border-color: var(--accent-blue);
    box-shadow: 0 0 15px var(--accent);
}

.overlay-nav-btn.ghost {
    opacity: 0;
    pointer-events: none;
}

.overlay-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem 4rem 2rem;
}

.overlay-section-title {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2rem;
    margin-top: 2rem;
    text-align: left;
    background: linear-gradient(135deg, var(--accent), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}


/* =========================
   Contact Form Integration
   ========================= */
.contact-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: flex-start;
}

.contact-form-side .hacker-form {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.input-wrapper {
    position: relative;
    width: 100%;
}

.form-input {
    width: 100%;
    background: rgba(0, 0, 0, 0.4); 
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 1rem 1.2rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    transition: var(--transition);
    outline: none;
    resize: vertical;
}

.form-input::placeholder {
    color: var(--text-muted);
}

.form-input:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.5), inset 0 0 10px rgba(255, 255, 255, 0.05);
    background: rgba(255, 255, 255, 0.03);
}

@media (max-width: 768px) {
    .contact-split {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
}

/* =========================
   Mobile Optimization for Hover Modals & Bubbles
   ========================= */
@media (max-width: 768px) {
    .project-card, .sim-card {
        display: flex;
        flex-direction: column;
    }
    
    .glass-bubble {
        position: relative;
        inset: auto;
        opacity: 1 !important;
        visibility: visible !important;
        transform: none !important;
        margin: 1rem;
        padding: 1.2rem;
        background: rgba(10, 10, 11, 0.6);
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3) !important;
        border-radius: var(--radius-sm);
    }
    
    .project-card:hover .project-content,
    .sim-card:hover .sim-video-wrapper,
    .sim-card:hover .sim-info {
        transform: none !important;
        opacity: 1 !important;
    }
    
    .project-links.default-links {
        display: none !important; 
    }
}

/* =========================
   Dynamics Simulations Overview Buttons 
   ========================= */

/* Style the button inside the glass bubble hover state */
.glass-bubble-inner .overview-btn {
    margin-top: 15px; 
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.glass-bubble-inner .overview-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: var(--accent-blue);
}

/* Modal overview button positioning (Inside the full media player) */
.sim-modal-overview-btn {
    position: absolute !important;
    top: 1.5rem;
    left: 1.5rem;
    z-index: 100;
    background: rgba(10, 10, 11, 0.7) !important;
    backdrop-filter: blur(15px) !important;
    border: 1px solid rgba(255, 255, 255, 0.2) !important;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5) !important;
    margin: 0 !important;
}

.sim-modal-overview-btn:hover {
    background: rgba(255, 255, 255, 0.15) !important;
    border-color: var(--accent-blue) !important;
}

/* =========================
   Scroll-to-Simulations Button (chat-style)
   ========================= */
.scroll-to-bottom-btn {
    position: fixed;
    bottom: 2.2rem;
    right: 2.2rem;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: rgba(20, 20, 22, 0.75);
    backdrop-filter: blur(18px) saturate(180%);
    -webkit-backdrop-filter: blur(18px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: var(--accent-blue);
    font-size: 1.25rem;
    cursor: pointer;
    z-index: 100010;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px) scale(0.85);
    transition: 
        opacity 0.35s cubic-bezier(0.4, 0, 0.2, 1),
        visibility 0.35s,
        transform 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275),
        background 0.25s ease,
        border-color 0.25s ease,
        box-shadow 0.25s ease,
        color 0.25s ease;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

/* Only show when the full portfolio overlay is open */
.full-page-overlay.active .scroll-to-bottom-btn {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.scroll-to-bottom-btn:hover {
    background: linear-gradient(135deg, var(--accent), var(--accent-blue));
    color: #0a0a0b;
    border-color: transparent;
    box-shadow: 
        0 10px 30px rgba(0, 0, 0, 0.5),
        0 0 25px color-mix(in srgb, var(--accent) 40%, transparent);
    transform: translateY(-4px) scale(1.08);
}

.scroll-to-bottom-btn:active {
    transform: translateY(0) scale(0.95);
}

.scroll-to-bottom-btn i {
    transition: transform 0.3s ease;
}

.scroll-to-bottom-btn:hover i {
    transform: translateY(2px);
}

/* Mobile tweak */
@media (max-width: 768px) {
    .scroll-to-bottom-btn {
        bottom: 1.5rem;
        right: 1.5rem;
        width: 48px;
        height: 48px;
        font-size: 1.15rem;
    }
}

/* Hidden state for the scroll button */
.scroll-to-bottom-btn.hidden-btn {
    opacity: 0 !important;
    visibility: hidden !important;
    transform: translateY(20px) scale(0.85) !important;
    pointer-events: none !important;
}

/* =========================
   Live Local Clock (Desktop only)
   ========================= */
.nav-clock {
    position: absolute;
    left: 28px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    align-items: center;
    gap: 0.55rem;
    background: rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(18px) saturate(180%);
    -webkit-backdrop-filter: blur(18px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.09);
    border-radius: 14px;
    padding: 0.42rem 0.95rem;
    font-size: 0.88rem;
    font-weight: 500;
    letter-spacing: 0.4px;
    color: var(--text-primary);
    box-shadow: 0 4px 18px rgba(0, 0, 0, 0.25);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    z-index: 10;
    user-select: none;
}

.nav-clock i {
    font-size: 0.95rem;
    color: var(--accent-blue);
    opacity: 0.9;
}

.nav-clock:hover {
    border-color: rgba(255, 255, 255, 0.18);
    box-shadow: 0 4px 22px rgba(0, 0, 0, 0.35), 0 0 12px color-mix(in srgb, var(--accent) 25%, transparent);
}

/* Hide on mobile / tablet */
@media (max-width: 900px) {
    .nav-clock {
        display: none !important;
    }
}

/* =========================================================
   NEW: VS Code-style Sidebar + Right-slide Pages
   (append this block to the end of style.css)
   ========================================================= */

/* Sidebar trigger – left of the clock */
.sidebar-trigger {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.09);
    color: var(--text-secondary);
    cursor: pointer;
    z-index: 11;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(12px);
}

.sidebar-trigger:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border-color: var(--accent-blue);
    box-shadow: 0 0 12px color-mix(in srgb, var(--accent) 25%, transparent);
}

.sidebar-trigger i {
    transition: transform 0.3s ease;
}

.vs-sidebar.open ~ .glass-top-bar .sidebar-trigger i,
body:has(.vs-sidebar.open) .sidebar-trigger i {
    transform: rotate(180deg);
}

/* Shift clock a bit to the right so trigger has space */
.nav-clock {
    left: 58px !important;
}

/* VS Code style sidebar */
.vs-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 260px;
    height: 100vh;
    background: rgba(13, 13, 14, 0.92);
    backdrop-filter: blur(28px) saturate(180%);
    -webkit-backdrop-filter: blur(28px) saturate(180%);
    border-right: 1px solid rgba(255, 255, 255, 0.08);
    z-index: 100050;
    transform: translateX(-100%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    box-shadow: 8px 0 40px rgba(0, 0, 0, 0.45);
}

.vs-sidebar.open {
    transform: translateX(0);
}

.vs-sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.1rem 1.25rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.vs-sidebar-title {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 1.2px;
    text-transform: uppercase;
    color: var(--text-muted);
}

.vs-sidebar-close {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.15rem;
    cursor: pointer;
    transition: color 0.2s ease;
    line-height: 1;
}

.vs-sidebar-close:hover {
    color: var(--text-primary);
}

.vs-sidebar-section {
    padding: 1rem 0.6rem;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.vs-sidebar-label {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--text-muted);
    padding: 0.4rem 0.85rem 0.6rem;
}

.vs-sidebar-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.65rem 0.85rem;
    background: transparent;
    border: none;
    border-radius: 8px;
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.92rem;
    font-weight: 500;
    cursor: pointer;
    text-align: left;
    transition: all 0.2s ease;
}

.vs-sidebar-item i {
    width: 18px;
    text-align: center;
    font-size: 0.95rem;
    color: var(--accent-blue);
    opacity: 0.85;
}

.vs-sidebar-item:hover {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
}

.vs-sidebar-item:hover i {
    opacity: 1;
}

.vs-sidebar-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(4px);
    z-index: 100040;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s;
}

.vs-sidebar-backdrop.visible {
    opacity: 1;
    visibility: visible;
}

/* Right-slide page overlays (same spirit as full-portfolio-page) */
.page-overlay-right {
    position: fixed;
    inset: 0;
    background: var(--bg-primary);
    z-index: 100000;
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 0;
}

.page-overlay-right.active {
    transform: translateX(0);
}

/* Shared sub-titles inside right pages */
.sub-section-title {
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 2.5rem 0 1.25rem;
    background: linear-gradient(135deg, var(--accent), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Aesthetic scholarships table */
.table-card {
    padding: 0;
    overflow: hidden;
}

.aesthetic-table-wrap {
    overflow-x: auto;
}

.aesthetic-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.aesthetic-table thead {
    background: rgba(255, 255, 255, 0.04);
}

.aesthetic-table th {
    text-align: left;
    padding: 1rem 1.4rem;
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.8rem;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    border-bottom: 1px solid var(--border);
}

.aesthetic-table td {
    padding: 1rem 1.4rem;
    color: var(--text-primary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.aesthetic-table tbody tr:last-child td {
    border-bottom: none;
}

.aesthetic-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.03);
}

/* Education entries */
.edu-entry .edu-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.4rem;
}

.edu-entry h5 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.edu-year {
    font-size: 0.85rem;
    color: var(--accent-blue);
    font-weight: 500;
}

.edu-detail {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.55;
}

/* Achievements gallery */
.achievements-gallery-wrap {
    margin-bottom: 2.5rem;
}

.achievements-gallery {
    width: 100%;
    max-width: 720px;
    margin: 0 auto;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    background: rgba(20, 20, 22, 0.6);
}

.gallery-track {
    display: flex;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.gallery-slide {
    min-width: 100%;
    aspect-ratio: 16 / 9;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gallery-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.gallery-placeholder i {
    font-size: 2.5rem;
    opacity: 0.5;
}

.gallery-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.25rem;
    margin-top: 1rem;
}

.gallery-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.25s ease;
}

.gallery-btn:hover {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent-blue);
    box-shadow: 0 0 15px color-mix(in srgb, var(--accent) 40%, transparent);
}

.gallery-dots {
    display: flex;
    gap: 8px;
}

.gallery-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    cursor: pointer;
    transition: all 0.25s ease;
    padding: 0;
}

.gallery-dot.active {
    background: var(--accent-blue);
    box-shadow: 0 0 8px color-mix(in srgb, var(--accent-blue) 50%, transparent);
    transform: scale(1.2);
}

/* Mentoring page layout */
.mentoring-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.mentoring-card {
    height: 100%;
}

.mentoring-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    color: var(--accent-blue);
    font-size: 1.15rem;
}

.mentoring-card h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.mentoring-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
}

.mentoring-list li {
    position: relative;
    padding-left: 1.15rem;
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.45;
}

.mentoring-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.55em;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
}

/* Mobile adjustments */
@media (max-width: 768px) {
    .sidebar-trigger {
        left: 10px;
        width: 34px;
        height: 34px;
    }

    .nav-clock {
        left: 52px !important;
    }

    .vs-sidebar {
        width: 240px;
    }

    .mentoring-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 900px) {
    /* keep trigger visible even when clock is hidden */
    .sidebar-trigger {
        display: flex !important;
    }
}

/* =========================================================
   EDUCATION GALLERY – proper image fit (no awkward crop)
   + Mentoring contact CTA
   + Extra mobile polish
   ========================================================= */

/* Gallery images: fill the slide cleanly */
.gallery-slide {
    position: relative;
    overflow: hidden;
}

.gallery-slide img,
.gallery-slide .gallery-img {
    width: 100%;
    height: 100%;
    object-fit: contain;          /* change to "contain" if you prefer letterboxing */
    object-position: center;
    display: block;
border-radius: 12px;          /* soft rounded edges */
}

/* Certificate – fill the box (cropped if needed) */
.certificate-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

/* Keep placeholders looking good until real photos are added */
.gallery-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    color: var(--text-muted);
    font-size: 0.95rem;
    background: rgba(255, 255, 255, 0.03);
}

/* Mentoring page – contact redirect CTA */
.mentoring-contact-cta {
    margin-top: 2.75rem;
    padding: 2rem 1.5rem;
    text-align: center;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.mentoring-contact-cta p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin-bottom: 1.25rem;
}

.mentoring-contact-cta .submit-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.95rem 2rem;
    font-size: 1rem;
    border-radius: 30px;
}

/* ---------- Extra mobile optimization (safe additions) ---------- */
@media (max-width: 768px) {
    /* Gallery */
    .achievements-gallery {
        max-width: 100%;
        border-radius: 12px;
    }

    .gallery-slide {
        aspect-ratio: 4 / 3;   /* slightly taller on phones so faces/subjects fit better */
    }

    .gallery-controls {
        gap: 1rem;
        margin-top: 0.85rem;
    }

    .gallery-btn {
        width: 38px;
        height: 38px;
    }

    /* Mentoring CTA */
    .mentoring-contact-cta {
        margin-top: 2rem;
        padding: 1.5rem 1.1rem;
    }

    .mentoring-contact-cta p {
        font-size: 0.98rem;
    }

    /* Sidebar + right pages */
    .vs-sidebar {
        width: min(280px, 85vw);
    }

    .page-overlay-right .overlay-content {
        padding: 0 1.15rem 3.5rem;
    }

    .overlay-section-title {
        font-size: 1.7rem;
        margin-top: 1.25rem;
    }

    .sub-section-title {
        font-size: 1.2rem;
        margin: 2rem 0 1rem;
    }

    /* Education table */
    .aesthetic-table th,
    .aesthetic-table td {
        padding: 0.85rem 1rem;
        font-size: 0.9rem;
    }

    /* Mentoring cards */
    .mentoring-grid {
        gap: 1.15rem;
    }

    .mentoring-card h4 {
        font-size: 1.05rem;
    }

    .mentoring-list li {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .gallery-slide {
        aspect-ratio: 1 / 1;   /* square on very small phones – cleanest fit */
    }

    .mentoring-contact-cta .submit-btn {
        width: 100%;
        justify-content: center;
        padding: 1rem 1.5rem;
    }
}

/* =========================================================
   Education Gallery + Certificate side-by-side (CLEAN)
   ========================================================= */
.gallery-and-cert {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  align-items: stretch;
  max-width: 1100px;
  margin: 0 auto;
}

.achievements-gallery {
  max-width: none;
  width: 100%;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: rgba(20, 20, 22, 0.4);
}

.gallery-track {
  display: flex;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.gallery-slide {
  min-width: 100%;
  aspect-ratio: 16 / 9;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* Gallery photos – original fit + rounded corners, NO black borders */
.gallery-img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  object-position: center;
  display: block;
  border-radius: 12px;
}

/* Certificate – fills the box */
.certificate-slot {
  width: 100%;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: rgba(20, 20, 22, 0.6);
  aspect-ratio: 16 / 9;
  position: relative;
}

.certificate-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.certificate-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.03);
}

/* AP Courses grid */
.ap-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.25rem;
  margin-bottom: 1rem;
}

.ap-card {
  background: rgba(20, 20, 22, 0.85);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 1rem;
  text-align: center;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.ap-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent-blue);
  box-shadow: var(--shadow), 0 0 18px color-mix(in srgb, var(--accent) 30%, transparent);
}

.ap-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  color: var(--accent-blue);
}

.ap-card h5 {
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
  margin: 0;
}

/* Mobile */
@media (max-width: 768px) {
  .gallery-and-cert {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .certificate-slot {
    aspect-ratio: 4 / 3;
  }

  .ap-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }
}

@media (max-width: 480px) {
  .ap-grid {
    grid-template-columns: 1fr;
  }
}

/* ========== CLEAN LAYOUT ========== */

.gallery-and-cert {
  display: grid !important;
  grid-template-columns: 1fr 1fr !important;
  gap: 1.5rem !important;
  align-items: start !important;
  max-width: 1100px !important;
  margin: 0 auto !important;
}

.left-side {
  display: flex !important;
  flex-direction: column !important;
  gap: 0.9rem !important;
}

.achievements-gallery {
  width: 100% !important;
  border-radius: 16px !important;
  overflow: hidden !important;
  border: 1px solid var(--border) !important;
  background: transparent !important;
}

.gallery-track {
  display: flex !important;
}

.gallery-slide {
  min-width: 100% !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  background: transparent !important;
}

.gallery-img {
  width: 100% !important;
  height: auto !important;
  max-height: 420px !important;
  object-fit: contain !important;
  border-radius: 14px !important;
  display: block !important;
}

.certificate-slot {
  width: 100% !important;
  border-radius: 16px !important;
  overflow: hidden !important;
  border: 1px solid var(--border) !important;
  background: transparent !important;
}

.certificate-img {
  width: 100% !important;
  height: auto !important;
  max-height: 420px !important;
  object-fit: fill !important;
  border-radius: 14px !important;
  display: block !important;
}

.gallery-controls {
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 1.25rem !important;
  margin: 0 !important;
}

@media (max-width: 768px) {
  .gallery-and-cert {
    grid-template-columns: 1fr !important;
  }
}

/* =========================================================
   WORKFLOW TIMELINE – step-by-step procedure
   ========================================================= */
.workflow-timeline {
  position: relative;
  max-width: 820px;
  margin: 0 auto 3rem;
  padding-left: 0;
}

/* vertical line */
.workflow-timeline::before {
  content: '';
  position: absolute;
  left: 28px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: linear-gradient(
    180deg,
    var(--accent) 0%,
    color-mix(in srgb, var(--accent) 40%, var(--accent-blue)) 50%,
    var(--accent-blue) 100%
  );
  border-radius: 2px;
  opacity: 0.55;
}

.workflow-step {
  position: relative;
  display: flex;
  gap: 1.75rem;
  margin-bottom: 2.25rem;
  align-items: flex-start;
}

.workflow-step:last-child {
  margin-bottom: 0;
}

/* number marker */
.workflow-step-marker {
  flex-shrink: 0;
  width: 58px;
  height: 58px;
  border-radius: 16px;
  background: rgba(20, 20, 22, 0.95);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.35);
  transition: var(--transition);
}

.workflow-step:hover .workflow-step-marker {
  border-color: var(--accent-blue);
  box-shadow: 0 0 20px color-mix(in srgb, var(--accent) 35%, transparent),
              0 4px 18px rgba(0, 0, 0, 0.4);
  transform: scale(1.06);
}

.workflow-step-number {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  background: linear-gradient(135deg, var(--accent), var(--accent-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* content card */
.workflow-step-content {
  flex: 1;
  background: rgba(20, 20, 22, 0.75);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 1.6rem 1.4rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.workflow-step-content::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent), var(--accent-blue));
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.workflow-step:hover .workflow-step-content {
  border-color: color-mix(in srgb, var(--accent-blue) 55%, transparent);
  box-shadow: var(--shadow), 0 0 22px color-mix(in srgb, var(--accent) 18%, transparent);
  transform: translateY(-3px);
}

.workflow-step:hover .workflow-step-content::before {
  opacity: 0.04;
}

.workflow-step-content h4 {
  font-size: 1.18rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.65rem;
  line-height: 1.35;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.workflow-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.3px;
  padding: 0.22rem 0.55rem;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--accent-blue);
  text-transform: lowercase;
}

.workflow-intro {
  color: var(--text-secondary);
  font-size: 0.98rem;
  line-height: 1.55;
  margin-bottom: 0.85rem;
}

.workflow-list {
  list-style: none;
  padding: 0;
  margin: 0 0 0.9rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.workflow-list li {
  position: relative;
  padding-left: 1.15rem;
  color: var(--text-secondary);
  font-size: 0.93rem;
  line-height: 1.5;
}

.workflow-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 6px color-mix(in srgb, var(--accent) 50%, transparent);
}

.workflow-note {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.55;
  font-style: italic;
  margin: 0;
  padding-top: 0.35rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* mobile */
@media (max-width: 768px) {
  .workflow-timeline::before {
    left: 22px;
  }

  .workflow-step {
    gap: 1.15rem;
    margin-bottom: 1.75rem;
  }

  .workflow-step-marker {
    width: 46px;
    height: 46px;
    border-radius: 12px;
  }

  .workflow-step-number {
    font-size: 0.92rem;
  }

  .workflow-step-content {
    padding: 1.2rem 1.15rem 1.15rem;
  }

  .workflow-step-content h4 {
    font-size: 1.05rem;
  }

  .workflow-intro,
  .workflow-list li {
    font-size: 0.9rem;
  }

  .workflow-note {
    font-size: 0.85rem;
  }
}

@media (max-width: 480px) {
  .workflow-timeline::before {
    left: 18px;
  }

  .workflow-step-marker {
    width: 40px;
    height: 40px;
  }

  .workflow-step-number {
    font-size: 0.85rem;
  }
}

/* =========================================================
   LAB JOURNAL – dated engineering notebook
   ========================================================= */
.journal-feed {
  max-width: 820px;
  margin: 0 auto 3rem;
  display: flex;
  flex-direction: column;
  gap: 1.35rem;
}

.journal-entry {
  background: rgba(20, 20, 22, 0.75);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem 1.55rem 1.35rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.journal-entry::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--accent), var(--accent-blue));
  opacity: 0.55;
  border-radius: 3px 0 0 3px;
}

.journal-entry:hover {
  border-color: color-mix(in srgb, var(--accent-blue) 50%, transparent);
  box-shadow: var(--shadow), 0 0 18px color-mix(in srgb, var(--accent) 15%, transparent);
  transform: translateY(-2px);
}

.journal-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.65rem;
  flex-wrap: wrap;
}

.journal-meta time {
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.4px;
  color: var(--accent-blue);
  font-variant-numeric: tabular-nums;
}

.journal-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  padding: 0.18rem 0.5rem;
  border-radius: 5px;
  border: 1px solid transparent;
}

.tag-experiment {
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  border-color: color-mix(in srgb, var(--accent) 40%, transparent);
  color: var(--accent-blue);
}

.tag-debug {
  background: rgba(255, 180, 50, 0.12);
  border-color: rgba(255, 180, 50, 0.35);
  color: #ffb432;
}

.tag-question {
  background: rgba(100, 160, 255, 0.12);
  border-color: rgba(100, 160, 255, 0.35);
  color: #7ab0ff;
}

.tag-broke {
  background: rgba(255, 70, 70, 0.12);
  border-color: rgba(255, 70, 70, 0.35);
  color: #ff6b6b;
}

.journal-entry h4 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.55rem;
  line-height: 1.4;
}

.journal-entry p {
  color: var(--text-secondary);
  font-size: 0.94rem;
  line-height: 1.6;
  margin-bottom: 0.45rem;
}

.journal-entry p:last-child {
  margin-bottom: 0;
}

.journal-entry .journal-note {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-style: italic;
  margin-top: 0.55rem;
  padding-top: 0.45rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* mobile */
@media (max-width: 768px) {
  .journal-feed {
    gap: 1.1rem;
  }

  .journal-entry {
    padding: 1.15rem 1.15rem 1.1rem;
  }

  .journal-entry h4 {
    font-size: 0.98rem;
  }

  .journal-entry p {
    font-size: 0.9rem;
  }

  .journal-meta time {
    font-size: 0.78rem;
  }
}

/* =========================================================
   LAB JOURNAL – dated engineering notebook + filters
   ========================================================= */
.journal-header-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: 0.25rem;
}

.journal-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
  margin-top: 0.35rem;
}

.journal-filter {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.38rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.3px;
  cursor: pointer;
  transition: all 0.22s ease;
  white-space: nowrap;
}

.journal-filter:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.18);
  color: var(--text-primary);
}

.journal-filter.active {
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  border-color: color-mix(in srgb, var(--accent-blue) 55%, transparent);
  color: var(--text-primary);
  box-shadow: 0 0 12px color-mix(in srgb, var(--accent) 25%, transparent);
}

.filter-swatch {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  flex-shrink: 0;
}

.swatch-experiment {
  background: var(--accent-blue);
  box-shadow: 0 0 6px color-mix(in srgb, var(--accent-blue) 50%, transparent);
}

.swatch-debug {
  background: #ffb432;
  box-shadow: 0 0 6px rgba(255, 180, 50, 0.45);
}

.swatch-question {
  background: #7ab0ff;
  box-shadow: 0 0 6px rgba(122, 176, 255, 0.45);
}

.swatch-broke {
  background: #ff6b6b;
  box-shadow: 0 0 6px rgba(255, 107, 107, 0.45);
}

.journal-feed {
  max-width: 920px;
  margin: 0 auto 3rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.journal-entry {
  background: rgba(20, 20, 22, 0.8);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem 1.9rem 1.6rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.journal-entry::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--accent), var(--accent-blue));
  opacity: 0.6;
  border-radius: 3px 0 0 3px;
}

.journal-entry:hover {
  border-color: color-mix(in srgb, var(--accent-blue) 50%, transparent);
  box-shadow: var(--shadow), 0 0 20px color-mix(in srgb, var(--accent) 16%, transparent);
  transform: translateY(-3px);
}

.journal-entry.journal-hidden {
  display: none;
}

.journal-meta {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.journal-meta time {
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.4px;
  color: var(--accent-blue);
  font-variant-numeric: tabular-nums;
}

.journal-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  padding: 0.2rem 0.55rem;
  border-radius: 5px;
  border: 1px solid transparent;
}

.tag-experiment {
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  border-color: color-mix(in srgb, var(--accent) 40%, transparent);
  color: var(--accent-blue);
}

.tag-debug {
  background: rgba(255, 180, 50, 0.12);
  border-color: rgba(255, 180, 50, 0.35);
  color: #ffb432;
}

.tag-question {
  background: rgba(100, 160, 255, 0.12);
  border-color: rgba(100, 160, 255, 0.35);
  color: #7ab0ff;
}

.tag-broke {
  background: rgba(255, 70, 70, 0.12);
  border-color: rgba(255, 70, 70, 0.35);
  color: #ff6b6b;
}

.journal-entry h4 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.65rem;
  line-height: 1.4;
}

.journal-entry p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.65;
  margin-bottom: 0.5rem;
}

.journal-entry p:last-child {
  margin-bottom: 0;
}

.journal-entry .journal-note {
  font-size: 0.86rem;
  color: var(--text-muted);
  font-style: italic;
  margin-top: 0.65rem;
  padding-top: 0.55rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* mobile */
@media (max-width: 768px) {
  .journal-header-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .journal-filters {
    width: 100%;
    gap: 0.4rem;
  }

  .journal-filter {
    font-size: 0.75rem;
    padding: 0.35rem 0.65rem;
  }

  .journal-feed {
    gap: 1.15rem;
    max-width: 100%;
  }

  .journal-entry {
    padding: 1.25rem 1.2rem 1.15rem;
  }

  .journal-entry h4 {
    font-size: 1.02rem;
  }

  .journal-entry p {
    font-size: 0.92rem;
  }

  .journal-meta time {
    font-size: 0.8rem;
  }
}

@media (max-width: 480px) {
  .journal-filters {
    gap: 0.35rem;
  }

  .journal-filter {
    font-size: 0.72rem;
    padding: 0.32rem 0.55rem;
  }

  .filter-swatch {
    width: 8px;
    height: 8px;
  }
}
/* =========================================================
   TECHNICAL GLOSSARY
   ========================================================= */

.glossary-overlay-content {
  max-width: 960px;
  margin: 0 auto;
  padding-bottom: 4rem;
  position: relative;
  min-height: 40vh;
}

.glossary-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.glossary-search-wrap {
  position: relative;
  flex: 1;
  min-width: 220px;
  max-width: 340px;
}

.glossary-search-wrap i {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 0.9rem;
  pointer-events: none;
}

.glossary-search-wrap input {
  width: 100%;
  padding: 0.7rem 1rem 0.7rem 2.4rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.glossary-search-wrap input:focus {
  border-color: color-mix(in srgb, var(--accent-blue) 60%, transparent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent);
}

.glossary-search-wrap input::placeholder {
  color: var(--text-muted);
}

/* filters */
.glossary-filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.glossary-filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.glossary-filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.38rem 0.8rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.glossary-filter-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
}

.glossary-filter-btn.active {
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  border-color: color-mix(in srgb, var(--accent-blue) 55%, transparent);
  color: var(--text-primary);
  box-shadow: 0 0 12px color-mix(in srgb, var(--accent) 22%, transparent);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.status-dot.used { background: #23a55a; box-shadow: 0 0 6px rgba(35, 165, 90, 0.5); }
.status-dot.studied { background: #f0b232; box-shadow: 0 0 6px rgba(240, 178, 50, 0.45); }
.status-dot.learning { background: #7ab0ff; box-shadow: 0 0 6px rgba(122, 176, 255, 0.45); }

/* alphabet */
.glossary-alphabet {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.glossary-letter {
  min-width: 28px;
  height: 28px;
  padding: 0 0.35rem;
  border-radius: 6px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-muted);
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.3px;
  cursor: pointer;
  transition: all 0.18s ease;
}

.glossary-letter:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.06);
}

.glossary-letter.active {
  color: var(--text-primary);
  background: color-mix(in srgb, var(--accent) 22%, transparent);
  border-color: color-mix(in srgb, var(--accent-blue) 40%, transparent);
}

/* category pills */
.glossary-category-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.glossary-cat-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.85rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(20, 20, 22, 0.85);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  text-transform: lowercase;
}

.glossary-cat-pill:hover {
  border-color: rgba(255, 255, 255, 0.18);
  color: var(--text-primary);
  transform: translateY(-1px);
}

.glossary-cat-pill.active {
  border-color: color-mix(in srgb, var(--accent-blue) 50%, transparent);
  color: var(--text-primary);
  box-shadow: 0 0 14px color-mix(in srgb, var(--accent) 18%, transparent);
}

.cat-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  flex-shrink: 0;
}

.glossary-result-meta {
  margin-bottom: 1rem;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* term cards */
.glossary-term-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.glossary-term-card {
  display: block;
  width: 100%;
  text-align: left;
  background: rgba(20, 20, 22, 0.8);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem 1.4rem;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
  color: inherit;
}

.glossary-term-card:hover {
  border-color: color-mix(in srgb, var(--accent-blue) 50%, transparent);
  box-shadow: var(--shadow), 0 0 18px color-mix(in srgb, var(--accent) 14%, transparent);
  transform: translateY(-2px);
}

.term-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.45rem;
  flex-wrap: wrap;
}

.term-name {
  font-size: 1.08rem;
  font-weight: 600;
  color: var(--text-primary);
}

.term-badges {
  display: flex;
  gap: 0.4rem;
  flex-shrink: 0;
}

.status-badge,
.level-badge {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  padding: 0.18rem 0.5rem;
  border-radius: 5px;
  border: 1px solid transparent;
}

.status-badge.status-used {
  background: rgba(35, 165, 90, 0.15);
  border-color: rgba(35, 165, 90, 0.35);
  color: #3dd68c;
}
.status-badge.status-studied {
  background: rgba(240, 178, 50, 0.12);
  border-color: rgba(240, 178, 50, 0.35);
  color: #f0b232;
}
.status-badge.status-learning {
  background: rgba(122, 176, 255, 0.12);
  border-color: rgba(122, 176, 255, 0.35);
  color: #7ab0ff;
}

.level-badge.level-foundational {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.12);
  color: var(--text-secondary);
}
.level-badge.level-intermediate {
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  border-color: color-mix(in srgb, var(--accent) 35%, transparent);
  color: var(--accent-blue);
}
.level-badge.level-advanced {
  background: rgba(162, 155, 254, 0.12);
  border-color: rgba(162, 155, 254, 0.35);
  color: #a29bfe;
}

.term-short {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.55;
  margin-bottom: 0.65rem;
}

.term-cats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.mini-cat {
  font-size: 0.7rem;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  background: color-mix(in srgb, var(--cat-color) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--cat-color) 30%, transparent);
  color: var(--text-secondary);
}

.glossary-empty {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* detail / list view – smooth fade instead of hard cut */
#glossary-list-view,
#glossary-detail-view {
  transition: opacity 0.28s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  opacity: 1;
  transform: translateY(0);
  will-change: opacity, transform;
}

#glossary-list-view.hidden,
#glossary-detail-view.hidden {
  opacity: 0 !important;
  transform: translateY(10px);
  pointer-events: none !important;
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  visibility: hidden;
  height: 0;
  overflow: hidden;
}

#glossary-list-view.is-fading-out,
#glossary-detail-view.is-fading-out {
  opacity: 0 !important;
  transform: translateY(-8px);
  pointer-events: none !important;
}

#glossary-list-view.is-fading-in,
#glossary-detail-view.is-fading-in {
  opacity: 1;
  transform: translateY(0);
  visibility: visible;
}

.glossary-back-list-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  padding: 0.5rem 1rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.88rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.glossary-back-list-btn:hover {
  color: var(--text-primary);
  border-color: color-mix(in srgb, var(--accent-blue) 40%, transparent);
}

.detail-header {
  margin-bottom: 1.25rem;
}

.detail-title {
  font-size: 1.85rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), var(--accent-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.75rem;
  line-height: 1.25;
}

.detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.detail-cats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.detail-cat {
  font-size: 0.75rem;
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  background: color-mix(in srgb, var(--cat-color) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--cat-color) 35%, transparent);
  color: var(--text-secondary);
}

.detail-divider {
  width: 100%;
  margin: 1.25rem 0 1.75rem;
  border: 0;
  border-top: 1px solid var(--border);
}

.detail-section {
  margin-bottom: 1.75rem;
}

.detail-section h3 {
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: var(--accent-blue);
  margin-bottom: 0.55rem;
}

.detail-section p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.65;
}

.eq-block {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem 1.2rem;
  margin-bottom: 0.75rem;
  overflow-x: auto;
}

.eq-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
  text-transform: lowercase;
}

.eq-tex {
  font-family: 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
  font-size: 1.05rem;
  color: var(--text-primary);
  white-space: pre-wrap;
  line-height: 1.5;
}

.eq-note {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.related-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.related-term {
  padding: 0.4rem 0.8rem;
  border-radius: 8px;
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  color: var(--accent-blue);
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.related-term:hover {
  background: color-mix(in srgb, var(--accent) 22%, transparent);
  border-color: color-mix(in srgb, var(--accent-blue) 50%, transparent);
  box-shadow: 0 0 12px color-mix(in srgb, var(--accent) 20%, transparent);
  transform: translateY(-1px);
}

.related-missing {
  color: var(--text-muted);
  font-size: 0.88rem;
}

/* highlight class for terms elsewhere on the site */
.glossary-term-highlight {
  color: var(--accent-blue);
  border-bottom: 1px dotted color-mix(in srgb, var(--accent-blue) 50%, transparent);
  cursor: help;
}

/* mobile */
@media (max-width: 768px) {
  .glossary-top-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .glossary-search-wrap {
    max-width: none;
  }

  .detail-title {
    font-size: 1.45rem;
  }

  .term-card-top {
    flex-direction: column;
    gap: 0.5rem;
  }
}
/* =========================================================
   ENGINEERING TRIVIA
   ========================================================= */

/* ----- trivia overlay: fit setup on one screen ----- */
.trivia-overlay-content {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

#trivia-setup.trivia-screen {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  max-width: 720px;
  margin: 0 auto;
  width: 100%;
}

.trivia-setup-header {
  text-align: center;
  margin-bottom: 0.15rem;
}

.trivia-setup-header .overlay-section-title {
  margin-bottom: 0.25rem;
  font-size: 1.65rem;
}

.trivia-intro {
  margin: 0;
  font-size: 0.88rem;
  color: var(--text-muted);
  letter-spacing: 0.3px;
}

.trivia-setup-card.trivia-setup-compact {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1.15rem 1.25rem 1.25rem;
  background: rgba(20, 20, 22, 0.85);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.trivia-sec-label {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: 0.55rem;
}

.trivia-sec-label .sec-num {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.8px;
  color: var(--accent-blue);
  opacity: 0.85;
  font-variant-numeric: tabular-nums;
}

.trivia-sec-label h4 {
  margin: 0;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: lowercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
}

/* topics — compact chip grid */
.trivia-topic-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.45rem;
}

.trivia-topic-btn {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 0.45rem;
  padding: 0.55rem 0.65rem;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-secondary);
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  transition:
    transform 0.18s ease,
    border-color 0.18s ease,
    background 0.18s ease,
    box-shadow 0.18s ease,
    color 0.18s ease;
  min-height: 0;
}

.trivia-topic-btn:hover {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--accent-blue) 40%, transparent);
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.trivia-topic-btn.active {
  border-color: color-mix(in srgb, var(--accent-blue) 60%, transparent);
  background: color-mix(in srgb, var(--accent) 16%, transparent);
  color: var(--text-primary);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent-blue) 20%, transparent);
}

.trivia-topic-btn i {
  font-size: 0.85rem;
  color: var(--accent-blue);
  width: 1.1rem;
  text-align: center;
  flex-shrink: 0;
}

.trivia-topic-btn .topic-name {
  font-size: 0.76rem;
  font-weight: 550;
  letter-spacing: 0.15px;
  text-transform: lowercase;
  line-height: 1.2;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* difficulty + count side by side */
.trivia-setup-mid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 1rem;
  align-items: start;
}

.trivia-level-row {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.trivia-level-btn {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.55rem 0.75rem;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-secondary);
  cursor: pointer;
  font-family: inherit;
  transition: all 0.18s ease;
  text-align: left;
}

.trivia-level-btn:hover {
  border-color: color-mix(in srgb, var(--accent-blue) 40%, transparent);
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.trivia-level-btn.active {
  border-color: color-mix(in srgb, var(--accent-blue) 55%, transparent);
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  color: var(--text-primary);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent-blue) 18%, transparent);
}

.trivia-level-btn .level-icon {
  font-size: 0.9rem;
  color: var(--accent-blue);
  width: 1.1rem;
  text-align: center;
}

.trivia-level-btn .level-name {
  font-size: 0.82rem;
  font-weight: 550;
  text-transform: lowercase;
  letter-spacing: 0.2px;
}

.trivia-level-btn .level-desc {
  display: none; /* compact: hide secondary line */
}

/* count */
.trivia-count-wrap {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

#trivia-count-slider {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 5px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  outline: none;
  cursor: pointer;
}

#trivia-count-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-blue));
  border: 2px solid rgba(255, 255, 255, 0.25);
  box-shadow: 0 0 10px color-mix(in srgb, var(--accent) 40%, transparent);
  cursor: pointer;
}

#trivia-count-slider::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-blue));
  border: 2px solid rgba(255, 255, 255, 0.25);
  cursor: pointer;
}

.trivia-count-display {
  min-width: 2.2rem;
  text-align: center;
}

#trivia-count-value {
  font-size: 1.45rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), var(--accent-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.trivia-count-label {
  display: none;
}

.trivia-count-ticks {
  display: flex;
  justify-content: space-between;
  margin-top: 0.35rem;
  padding: 0 2px;
  font-size: 0.68rem;
  color: var(--text-muted);
}

/* start button — slightly tighter */
.trivia-start-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  width: 100%;
  padding: 0.8rem 1.25rem;
  border-radius: 12px;
  border: none;
  background: linear-gradient(135deg, var(--accent), var(--accent-blue));
  color: #fff;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.3px;
  cursor: pointer;
  transition: all 0.22s ease;
  box-shadow: 0 4px 18px color-mix(in srgb, var(--accent) 32%, transparent);
  margin-top: 0.15rem;
}

.trivia-start-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 7px 24px color-mix(in srgb, var(--accent) 42%, transparent);
}

.trivia-start-btn:active {
  transform: translateY(0);
}

/* past scores — compact strip */
.trivia-past-wrap {
  margin-top: 0.35rem;
  padding: 0.75rem 0.9rem;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(255, 255, 255, 0.02);
}

.trivia-past-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.45rem;
}

.trivia-past-header h4 {
  margin: 0;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: lowercase;
  letter-spacing: 0.4px;
}

.trivia-past-list {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.trivia-past-row {
  padding: 0.35rem 0;
}

.trivia-past-score {
  font-size: 0.82rem;
}

.trivia-past-meta {
  font-size: 0.7rem;
}

/* responsive */
@media (max-width: 640px) {
  .trivia-topic-row {
    grid-template-columns: repeat(2, 1fr);
  }
  .trivia-setup-mid {
    grid-template-columns: 1fr;
    gap: 0.85rem;
  }
  .trivia-level-row {
    flex-direction: row;
    flex-wrap: wrap;
  }
  .trivia-level-btn {
    flex: 1 1 auto;
    min-width: calc(33% - 0.3rem);
    justify-content: center;
  }
  .trivia-setup-card.trivia-setup-compact {
    padding: 1rem;
  }
  .trivia-setup-header .overlay-section-title {
    font-size: 1.4rem;
  }
}

@media (max-width: 400px) {
  .trivia-topic-row {
    grid-template-columns: 1fr 1fr;
  }
  .trivia-topic-btn .topic-name {
    font-size: 0.72rem;
  }
}


/* quiz / results screens */
.trivia-screen.hidden {
  display: none !important;
}

.trivia-meta-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
  font-size: 0.88rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

#trivia-score-live {
  color: var(--accent-blue);
  font-weight: 500;
}

@keyframes triviaFadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* quiz progress */
.trivia-progress-bar {
  height: 4px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 1rem;
}

.trivia-progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-blue));
  border-radius: 999px;
  transition: width 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.trivia-meta-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
  font-size: 0.88rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

#trivia-score-live {
  color: var(--accent-blue);
  font-weight: 500;
}

.trivia-question-card {
  background: rgba(20, 20, 22, 0.85);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem 1.6rem;
  margin-bottom: 1.25rem;
}

.trivia-question-text {
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.55;
  margin-bottom: 1.5rem;
}

.trivia-options {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.trivia-option-btn {
  display: block;
  width: 100%;
  text-align: left;
  padding: 0.95rem 1.15rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.98rem;
  line-height: 1.45;
  cursor: pointer;
  transition: all 0.2s ease;
}

.trivia-option-btn:hover:not(:disabled) {
  border-color: color-mix(in srgb, var(--accent-blue) 45%, transparent);
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  color: var(--text-primary);
  transform: translateX(4px);
}

.trivia-option-btn:disabled {
  cursor: default;
}

.trivia-option-btn.correct {
  border-color: rgba(35, 165, 90, 0.55);
  background: rgba(35, 165, 90, 0.15);
  color: #3dd68c;
}

.trivia-option-btn.wrong {
  border-color: rgba(242, 63, 67, 0.5);
  background: rgba(242, 63, 67, 0.12);
  color: #ff8a8a;
}

.trivia-feedback {
  background: rgba(20, 20, 22, 0.7);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.15rem 1.35rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  animation: triviaFadeIn 0.3s ease;
}

.trivia-feedback.hidden {
  display: none !important;
}

.feedback-correct {
  color: #3dd68c;
  font-weight: 500;
}

.feedback-wrong {
  color: #ff8a8a;
  font-weight: 500;
}

.trivia-next-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.15rem;
  border-radius: 10px;
  border: 1px solid color-mix(in srgb, var(--accent-blue) 45%, transparent);
  background: color-mix(in srgb, var(--accent) 16%, transparent);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.trivia-next-btn:hover {
  background: color-mix(in srgb, var(--accent) 28%, transparent);
  box-shadow: 0 0 14px color-mix(in srgb, var(--accent) 25%, transparent);
  transform: translateY(-1px);
}

/* results */
.trivia-results-card {
  background: rgba(20, 20, 22, 0.85);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.5rem 2rem;
  text-align: center;
  max-width: 420px;
  margin: 1.5rem auto 0;
}

.trivia-results-icon {
  font-size: 2.4rem;
  color: var(--accent-blue);
  margin-bottom: 0.75rem;
  text-shadow: 0 0 20px color-mix(in srgb, var(--accent) 40%, transparent);
}

.trivia-results-title {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1rem;
  text-transform: lowercase;
}

.trivia-results-score {
  font-size: 2.4rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), var(--accent-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
  margin-bottom: 0.25rem;
}

.trivia-results-pct {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.trivia-results-msg {
  color: var(--text-secondary);
  font-size: 0.98rem;
  line-height: 1.55;
  margin-bottom: 1.75rem;
}

.trivia-results-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.trivia-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.25rem;
  border-radius: 12px;
  border: 1px solid color-mix(in srgb, var(--accent-blue) 45%, transparent);
  background: color-mix(in srgb, var(--accent) 16%, transparent);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.92rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.trivia-action-btn:hover {
  background: color-mix(in srgb, var(--accent) 28%, transparent);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px color-mix(in srgb, var(--accent) 25%, transparent);
}

.trivia-action-btn.secondary {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--border);
  color: var(--text-secondary);
}

.trivia-action-btn.secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.18);
  box-shadow: none;
}

@media (max-width: 640px) {
  .trivia-level-row {
    grid-template-columns: 1fr;
  }

  .trivia-question-text {
    font-size: 1.05rem;
  }

  .trivia-results-card {
    padding: 2rem 1.35rem;
  }

  .trivia-count-wrap {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
  }

  .trivia-count-display {
    flex-direction: row;
    gap: 0.4rem;
    justify-content: center;
  }
}

/* past scores on setup */
.trivia-past-wrap {
  margin-top: 1.75rem;
}

.trivia-past-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.trivia-past-header h4 {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: var(--accent-blue);
  margin: 0;
}

.trivia-past-empty {
  color: var(--text-muted);
  font-size: 0.9rem;
  padding: 0.85rem 0;
}

.trivia-past-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.trivia-past-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.7rem 1rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  transition: border-color 0.2s ease, background 0.2s ease;
}

.trivia-past-row:hover {
  border-color: rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.05);
}

.trivia-past-main {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: 0;
}

.trivia-past-score {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.trivia-past-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.trivia-past-details-btn {
  flex-shrink: 0;
  padding: 0.35rem 0.7rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.78rem;
  cursor: pointer;
  transition: all 0.18s ease;
}

.trivia-past-details-btn:hover {
  color: var(--text-primary);
  border-color: color-mix(in srgb, var(--accent-blue) 40%, transparent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
}

/* scores popup */
.trivia-scores-popup-overlay {
  position: fixed;
  inset: 0;
  z-index: 10050;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.28s ease, visibility 0.28s ease;
}

.trivia-scores-popup-overlay.open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.trivia-scores-popup {
  width: 100%;
  max-width: 420px;
  max-height: min(80vh, 560px);
  background: rgba(18, 18, 20, 0.96);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
  transform: translateY(16px) scale(0.96);
  transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
  overflow: hidden;
}

.trivia-scores-popup-overlay.open .trivia-scores-popup {
  transform: translateY(0) scale(1);
}

.trivia-scores-popup-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.15rem 1.25rem;
  border-bottom: 1px solid var(--border);
}

.trivia-scores-popup-header h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
  text-transform: lowercase;
}

.trivia-scores-popup-close {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.18s ease;
}

.trivia-scores-popup-close:hover {
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.2);
}

.trivia-scores-popup-body {
  padding: 1rem 1.15rem 1.25rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.trivia-score-entry {
  padding: 0.85rem 1rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
}

.trivia-score-entry-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 0.35rem;
}

.trivia-score-entry-score {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 1rem;
}

.trivia-score-entry-pct {
  font-size: 0.85rem;
  color: var(--accent-blue);
  font-weight: 500;
}

.trivia-score-entry-meta {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.trivia-scores-view-all {
  margin-top: 0.35rem;
  padding: 0.65rem 1rem;
  border-radius: 10px;
  border: 1px dashed rgba(255, 255, 255, 0.12);
  background: transparent;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.18s ease;
  text-align: center;
}

.trivia-scores-view-all:hover {
  color: var(--text-primary);
  border-color: color-mix(in srgb, var(--accent-blue) 40%, transparent);
  background: color-mix(in srgb, var(--accent) 8%, transparent);
}

.trivia-scores-popup-empty {
  text-align: center;
  color: var(--text-muted);
  padding: 2rem 1rem;
  font-size: 0.92rem;
}

/* =========================================================
   WORKFLOW TIMELINE FIX + CORE TOOLKIT
   ========================================================= */

/* stop the vertical line exactly at the center of the last (10th) marker */
.workflow-timeline::before {
  top: 29px;
  bottom: 29px;
}

/* intro text under the “core toolkit” heading */
.tools-intro {
  color: var(--text-secondary);
  font-size: 0.98rem;
  line-height: 1.55;
  max-width: 640px;
  margin: -0.75rem auto 1.85rem;
  text-align: center;
}

/* grid of tool categories */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.35rem;
  max-width: 920px;
  margin: 0 auto 2.5rem;
}

.tool-category-card {
  background: rgba(20, 20, 22, 0.8);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem 1.4rem 1.3rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.tool-category-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent), var(--accent-blue));
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.tool-category-card:hover {
  border-color: color-mix(in srgb, var(--accent-blue) 50%, transparent);
  box-shadow: var(--shadow), 0 0 20px color-mix(in srgb, var(--accent) 16%, transparent);
  transform: translateY(-4px);
}

.tool-category-card:hover::before {
  opacity: 0.04;
}

.tool-cat-header {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 1rem;
  position: relative;
  z-index: 1;
}

.tool-cat-header i {
  font-size: 1.05rem;
  color: var(--accent-blue);
  width: 1.35rem;
  text-align: center;
}

.tool-cat-header h5 {
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.3px;
  color: var(--text-primary);
  margin: 0;
  text-transform: lowercase;
}

.tool-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  position: relative;
  z-index: 1;
}

.tool-tag {
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0.32rem 0.7rem;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.09);
  color: var(--text-secondary);
  transition: all 0.2s ease;
  line-height: 1.3;
}

.tool-category-card:hover .tool-tag {
  border-color: color-mix(in srgb, var(--accent-blue) 35%, transparent);
  color: var(--text-primary);
}

.tool-tag:hover {
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  border-color: color-mix(in srgb, var(--accent-blue) 50%, transparent);
  color: var(--accent-blue);
  transform: translateY(-1px);
}

/* mobile tweaks for tools */
@media (max-width: 640px) {
  .tools-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .tool-category-card {
    padding: 1.15rem 1.15rem 1.1rem;
  }

  .tools-intro {
    font-size: 0.92rem;
    margin-bottom: 1.5rem;
  }
}

/* =========================================================
   WORKFLOW TIMELINE FIX + CORE TOOLKIT + GALLERY CAPTIONS
   ========================================================= */

/* stop the vertical line exactly at the center of the last (10th) marker */
.workflow-timeline::before {
  top: 29px;
  bottom: 29px;
}

/* intro text under the “core toolkit” heading */
.tools-intro {
  color: var(--text-secondary);
  font-size: 0.98rem;
  line-height: 1.55;
  max-width: 640px;
  margin: -0.75rem auto 1.85rem;
  text-align: center;
}

/* grid of tool categories */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.35rem;
  max-width: 920px;
  margin: 0 auto 2.5rem;
}

.tool-category-card {
  background: rgba(20, 20, 22, 0.8);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem 1.4rem 1.3rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.tool-category-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent), var(--accent-blue));
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.tool-category-card:hover {
  border-color: color-mix(in srgb, var(--accent-blue) 50%, transparent);
  box-shadow: var(--shadow), 0 0 20px color-mix(in srgb, var(--accent) 16%, transparent);
  transform: translateY(-4px);
}

.tool-category-card:hover::before {
  opacity: 0.04;
}

.tool-cat-header {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 1rem;
  position: relative;
  z-index: 1;
}

.tool-cat-header i {
  font-size: 1.05rem;
  color: var(--accent-blue);
  width: 1.35rem;
  text-align: center;
}

.tool-cat-header h5 {
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.3px;
  color: var(--text-primary);
  margin: 0;
  text-transform: lowercase;
}

.tool-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  position: relative;
  z-index: 1;
}

.tool-tag {
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0.32rem 0.7rem;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.09);
  color: var(--text-secondary);
  transition: all 0.2s ease;
  line-height: 1.3;
}

.tool-category-card:hover .tool-tag {
  border-color: color-mix(in srgb, var(--accent-blue) 35%, transparent);
  color: var(--text-primary);
}

.tool-tag:hover {
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  border-color: color-mix(in srgb, var(--accent-blue) 50%, transparent);
  color: var(--accent-blue);
  transform: translateY(-1px);
}

/* education gallery captions */
.gallery-caption {
  margin: 0.85rem 0 0;
  padding: 0 0.35rem;
  text-align: center;
  font-size: 0.88rem;
  line-height: 1.45;
  color: var(--text-secondary);
  min-height: 2.6em;
  transition: opacity 0.16s ease;
}

.gallery-caption.is-fading {
  opacity: 0;
}

@media (max-width: 640px) {
  .tools-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .tool-category-card {
    padding: 1.15rem 1.15rem 1.1rem;
  }

  .tools-intro {
    font-size: 0.92rem;
    margin-bottom: 1.5rem;
  }

  .gallery-caption {
    font-size: 0.82rem;
    min-height: 2.8em;
  }
}

/* =========================================================
   NABILAI FAQ CHATBOT
   ========================================================= */

.nabilai-chatbot {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9990;
  font-family: 'Inter', system-ui, sans-serif;
  pointer-events: none;
}

.nabilai-chatbot > * {
  pointer-events: auto;
}

/* hide when any overlay page is open */
body.overlay-open .nabilai-chatbot {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

/* ---------- toggle button (face) ---------- */
.nabilai-toggle {
  position: relative;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: 2px solid color-mix(in srgb, var(--accent-blue) 55%, transparent);
  background: rgba(15, 15, 17, 0.9);
  padding: 0;
  cursor: pointer;
  overflow: hidden;
  box-shadow:
    0 8px 28px rgba(0, 0, 0, 0.45),
    0 0 0 1px rgba(255, 255, 255, 0.06),
    0 0 22px color-mix(in srgb, var(--accent) 35%, transparent);
  transition:
    transform 0.28s cubic-bezier(0.34, 1.56, 0.64, 1),
    box-shadow 0.25s ease,
    border-color 0.25s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nabilai-toggle:hover {
  transform: scale(1.08);
  border-color: var(--accent-blue);
  box-shadow:
    0 12px 36px rgba(0, 0, 0, 0.5),
    0 0 0 1px rgba(255, 255, 255, 0.1),
    0 0 32px color-mix(in srgb, var(--accent) 50%, transparent);
}

.nabilai-toggle:active {
  transform: scale(0.92);
}

.nabilai-face {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  display: block;
  transition: transform 0.35s cubic-bezier(0.34, 1.4, 0.64, 1), filter 0.35s ease;
  will-change: transform, filter;
}

/* satisfying click distortion */
.nabilai-toggle.is-clicking .nabilai-face {
  transform: scale(0.82) rotate(-8deg) skewX(-6deg);
  filter: contrast(1.15) saturate(1.2) brightness(1.05);
}

.nabilai-pulse {
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid color-mix(in srgb, var(--accent-blue) 40%, transparent);
  animation: nabilaiPulse 2.4s ease-out infinite;
  pointer-events: none;
  opacity: 0;
}

.nabilai-toggle:not(.is-open) .nabilai-pulse {
  opacity: 1;
}

@keyframes nabilaiPulse {
  0% {
    transform: scale(0.92);
    opacity: 0.7;
  }
  70% {
    transform: scale(1.25);
    opacity: 0;
  }
  100% {
    transform: scale(1.25);
    opacity: 0;
  }
}

/* when panel open, dim the toggle a bit */
.nabilai-toggle.is-open {
  box-shadow:
    0 6px 20px rgba(0, 0, 0, 0.4),
    0 0 0 1px rgba(255, 255, 255, 0.05);
}

/* ---------- chat panel ---------- */
.nabilai-panel {
  position: absolute;
  bottom: 78px;
  right: 0;
  width: min(360px, calc(100vw - 32px));
  height: min(520px, calc(100vh - 120px));
  background: rgba(14, 14, 16, 0.92);
  backdrop-filter: blur(28px) saturate(160%);
  -webkit-backdrop-filter: blur(28px) saturate(160%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 20px;
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.55),
    0 0 0 1px rgba(255, 255, 255, 0.04),
    0 0 40px color-mix(in srgb, var(--accent) 18%, transparent);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform-origin: bottom right;
  transition:
    opacity 0.28s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.32s cubic-bezier(0.22, 1, 0.36, 1),
    visibility 0.28s;
}

.nabilai-panel.hidden {
  opacity: 0;
  visibility: hidden;
  transform: scale(0.88) translateY(16px);
  pointer-events: none;
}

.nabilai-panel:not(.hidden) {
  opacity: 1;
  visibility: visible;
  transform: scale(1) translateY(0);
}

/* header */
.nabilai-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  background: linear-gradient(
    180deg,
    color-mix(in srgb, var(--accent) 12%, transparent) 0%,
    transparent 100%
  );
  flex-shrink: 0;
}

.nabilai-header-left {
  display: flex;
  align-items: center;
  gap: 11px;
}

.nabilai-header-face {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
  border: 1.5px solid color-mix(in srgb, var(--accent-blue) 50%, transparent);
  box-shadow: 0 0 12px color-mix(in srgb, var(--accent) 30%, transparent);
}

.nabilai-header-text {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.nabilai-name {
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.2px;
  text-transform: lowercase;
}

.nabilai-status {
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.2px;
}

.nabilai-close {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.nabilai-close:hover {
  background: rgba(255, 255, 255, 0.09);
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.16);
}

/* messages area */
.nabilai-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  scroll-behavior: smooth;
}

.nabilai-messages::-webkit-scrollbar {
  width: 5px;
}
.nabilai-messages::-webkit-scrollbar-track {
  background: transparent;
}
.nabilai-messages::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.12);
  border-radius: 4px;
}

/* message bubbles */
.nabilai-msg {
  max-width: 92%;
  padding: 10px 13px;
  border-radius: 14px;
  font-size: 0.9rem;
  line-height: 1.5;
  animation: nabilaiMsgIn 0.32s cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes nabilaiMsgIn {
  from {
    opacity: 0;
    transform: translateY(8px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.nabilai-msg.bot {
  align-self: flex-start;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.07);
  color: var(--text-secondary);
  border-bottom-left-radius: 5px;
}

.nabilai-msg.user {
  align-self: flex-end;
  background: color-mix(in srgb, var(--accent) 22%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent-blue) 35%, transparent);
  color: var(--text-primary);
  border-bottom-right-radius: 5px;
}

.nabilai-msg.bot strong {
  color: var(--accent-blue);
  font-weight: 500;
}

/* unique typing indicator */
.nabilai-typing {
  align-self: flex-start;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 14px;
  border-bottom-left-radius: 5px;
  animation: nabilaiMsgIn 0.25s ease both;
}

.nabilai-typing-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  letter-spacing: 0.3px;
}

.nabilai-typing-gears {
  display: flex;
  gap: 3px;
}

.nabilai-typing-gears i {
  font-size: 0.7rem;
  color: var(--accent-blue);
  animation: nabilaiGearSpin 1.1s linear infinite;
}

.nabilai-typing-gears i:nth-child(2) {
  animation-delay: 0.15s;
  animation-direction: reverse;
}

.nabilai-typing-gears i:nth-child(3) {
  animation-delay: 0.3s;
}

@keyframes nabilaiGearSpin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* options */
.nabilai-options {
  padding: 10px 12px 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  flex-direction: column;
  gap: 7px;
  max-height: 210px;
  overflow-y: auto;
  flex-shrink: 0;
  background: rgba(0, 0, 0, 0.15);
}

.nabilai-options::-webkit-scrollbar {
  width: 4px;
}
.nabilai-options::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
}

.nabilai-opt-btn {
  display: block;
  width: 100%;
  text-align: left;
  padding: 10px 12px;
  border-radius: 11px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.86rem;
  line-height: 1.4;
  cursor: pointer;
  transition: all 0.2s ease;
  text-transform: lowercase;
}

.nabilai-opt-btn:hover {
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  border-color: color-mix(in srgb, var(--accent-blue) 45%, transparent);
  color: var(--text-primary);
  transform: translateX(3px);
}

.nabilai-opt-btn:active {
  transform: translateX(1px) scale(0.99);
}

.nabilai-opt-btn:disabled {
  opacity: 0.45;
  pointer-events: none;
}

/* stage label inside options */
.nabilai-stage-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--accent-blue);
  margin-bottom: 2px;
  padding: 0 2px;
  opacity: 0.85;
}

/* empty state / restart */
.nabilai-restart {
  margin-top: 4px;
  text-align: center;
}

.nabilai-restart-btn {
  background: transparent;
  border: 1px dashed rgba(255, 255, 255, 0.12);
  color: var(--text-muted);
  font-family: inherit;
  font-size: 0.8rem;
  padding: 8px 14px;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.2s ease;
  width: 100%;
}

.nabilai-restart-btn:hover {
  border-color: color-mix(in srgb, var(--accent-blue) 40%, transparent);
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.03);
}

/* mobile */
@media (max-width: 480px) {
  .nabilai-chatbot {
    bottom: 16px;
    right: 14px;
  }

  .nabilai-toggle {
    width: 56px;
    height: 56px;
  }

  .nabilai-panel {
    bottom: 70px;
    width: calc(100vw - 28px);
    height: min(480px, calc(100vh - 100px));
    border-radius: 16px;
  }

  .nabilai-msg {
    font-size: 0.86rem;
  }

  .nabilai-opt-btn {
    font-size: 0.84rem;
    padding: 9px 11px;
  }
}

/* =========================================
   TOOLBOX SPECIFIC STYLES 
========================================= */
.toolbox-grid-ui {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    transition: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
    opacity: 1;
    transform: translateX(0);
}

.toolbox-grid-ui.hidden-view {
    opacity: 0;
    transform: translateX(-30px);
    pointer-events: none;
    position: absolute;
    visibility: hidden;
}

.tool-card-ui {
    cursor: pointer;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.tool-card-ui:hover {
    transform: translateY(-3px);
    border-color: var(--accent);
}

.tool-icon {
    font-size: 1.8rem;
    color: var(--accent);
    margin-bottom: 0.8rem;
}

.tool-card-ui h4 {
    margin-bottom: 0.4rem;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.tool-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.toolbox-subviews {
    position: relative;
    width: 100%;
}

.toolbox-tool-view {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
    pointer-events: none;
    visibility: hidden;
}

.toolbox-tool-view.active-tool {
    opacity: 1;
    transform: translateX(0);
    pointer-events: auto;
    position: relative;
    visibility: visible;
}

.tool-header-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.tool-back-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    color: var(--text-primary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.tool-back-btn:hover {
    background: var(--accent);
    border-color: var(--accent);
}

.tool-view-title {
    font-size: 1.4rem;
    color: var(--text-primary);
}

.calc-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.2rem;
}

@media (max-width: 600px) {
    .calc-grid {
        grid-template-columns: 1fr;
    }
}

.input-group label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.4rem;
}

/* Enhanced horizontal text spacing for calculation result containers[cite: 7] */
.calc-results {
  letter-spacing: 0.6px;
  word-spacing: 0.8px;
}

.calc-results p, 
.calc-results span, 
.calc-results h3 {
  letter-spacing: 0.5px;
}

/* Remove default number input native spinner arrows[cite: 7] */
input[type="number"].form-input {
  -webkit-appearance: textfield;
  -moz-appearance: textfield;
  appearance: textfield;
}

input[type="number"].form-input::-webkit-inner-spin-button,
input[type="number"].form-input::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/* Polished aesthetic styling for form inputs and selects[cite: 7] */
.form-input {
  background-color: rgba(18, 18, 20, 0.85);
  border: 1px solid var(--border, #333);
  color: var(--text-primary, #fff);
  border-radius: 8px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-input:focus {
  border-color: var(--accent, #913700);
  outline: none;
  box-shadow: 0 0 0 3px rgba(145, 55, 0, 0.2);
}

/* Custom dropdown chevron replacing default browser select arrow[cite: 7] */
select.form-input {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg fill='%23a1a1aa' height='18' viewBox='0 0 24 24' width='18' xmlns='http://www.w3.org/2000/svg'><path d='M7 10l5 5 5-5z'/></svg>");
  background-repeat: no-repeat;
  background-position: right 0.9rem center;
  background-size: 1.1rem;
  padding-right: 2.6rem;
  cursor: pointer;
}

select.form-input option {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    padding: 0.5rem;
}

/* =========================================================
   TOOLBOX VISUAL UNIFICATION
   ========================================================= */

.toolbox-overlay-content {
  padding-bottom: 3rem;
}

.toolbox-intro-card {
  margin-bottom: 2rem;
}

.toolbox-intro-card .about-text {
  margin: 0;
  line-height: 1.65;
}

.toolbox-grid-ui {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
  transition: opacity 0.35s cubic-bezier(0.25, 1, 0.5, 1),
              transform 0.35s cubic-bezier(0.25, 1, 0.5, 1);
  opacity: 1;
  transform: translateX(0);
  position: relative;
}

.toolbox-grid-ui.hidden-view {
  opacity: 0;
  transform: translateX(-18px);
  pointer-events: none;
  position: absolute;
  visibility: hidden;
  width: 100%;
}

.tool-card-ui {
  cursor: pointer;
  background: rgba(20, 20, 22, 0.85);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.tool-card-ui::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent), var(--accent-blue));
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
  z-index: 0;
}

.tool-card-ui:hover {
  transform: translateY(-5px);
  border-color: var(--accent-blue);
  box-shadow: var(--shadow), var(--glow);
}

.tool-card-ui:hover::before {
  opacity: 0.04;
}

.tool-card-inner,
.tool-card-ui .card-content {
  position: relative;
  z-index: 1;
  padding: 1.45rem 1.5rem 1.35rem;
}

.tool-icon {
  font-size: 1.55rem;
  color: var(--accent-blue);
  margin-bottom: 0.75rem;
  width: 2.4rem;
  height: 2.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent-blue) 22%, transparent);
}

.tool-card-title,
.tool-card-ui h4 {
  margin: 0 0 0.4rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.2px;
  text-transform: lowercase;
}

.tool-desc {
  font-size: 0.86rem;
  color: var(--text-secondary);
  line-height: 1.45;
  margin: 0;
}

.toolbox-subviews {
  position: relative;
  width: 100%;
  min-height: 120px;
}

.toolbox-tool-view {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  opacity: 0;
  transform: translateX(28px);
  transition: opacity 0.35s cubic-bezier(0.25, 1, 0.5, 1),
              transform 0.35s cubic-bezier(0.25, 1, 0.5, 1);
  pointer-events: none;
  visibility: hidden;
}

.toolbox-tool-view.active-tool {
  opacity: 1;
  transform: translateX(0);
  pointer-events: auto;
  position: relative;
  visibility: visible;
}

.tool-header-row {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  margin-bottom: 1.35rem;
}

.tool-back-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.22s ease;
  flex-shrink: 0;
}

.tool-back-btn:hover {
  background: color-mix(in srgb, var(--accent) 55%, transparent);
  border-color: var(--accent-blue);
  color: #fff;
  box-shadow: 0 0 14px color-mix(in srgb, var(--accent) 35%, transparent);
}

.tool-view-title {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.2px;
  text-transform: lowercase;
  margin: 0;
}

.tool-calc-content.card {
  background: rgba(20, 20, 22, 0.85);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.tool-calc-content .card-content {
  padding: 0;
}

.calc-results {
  letter-spacing: 0.4px;
  word-spacing: 0.5px;
  border-radius: 12px !important;
}

@media (max-width: 600px) {
  .toolbox-grid-ui {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .tool-card-inner,
  .tool-card-ui .card-content {
    padding: 1.25rem 1.2rem;
  }
}