/* 
   EUGENE YU (于有志) - PORTFOLIO DESIGN SYSTEM
   Premium Dark Mode, Glassmorphism, Neon Accents, Smooth Animations
*/

:root {
    --bg-dark: #030712;
    --bg-deep: #0b111e;
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-dim: #6b7280;
    
    /* Neon gradients */
    --accent-cyan: #00f2fe;
    --accent-cyan-rgb: 0, 242, 254;
    --accent-purple: #7f00ff;
    --accent-purple-rgb: 127, 0, 255;
    
    --grad-primary: linear-gradient(135deg, var(--accent-cyan) 0%, #4facfe 100%);
    --grad-ai: linear-gradient(135deg, var(--accent-purple) 0%, #e100ff 100%);
    --grad-dark-glass: rgba(15, 23, 42, 0.45);
    --border-glass: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(0, 242, 254, 0.4);
    
    --font-head: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: 'Fira Code', monospace;
    
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-snappy: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ----------------------------------------------------
   1. RESET & BASE STYLES
   ---------------------------------------------------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--bg-dark);
    overflow-x: hidden;
}

body {
    font-family: var(--font-body);
    color: var(--text-primary);
    background-color: var(--bg-dark);
    line-height: 1.6;
    overflow-x: hidden;
    cursor: default;
}

/* Scrollbar Customization */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-dark);
}
::-webkit-scrollbar-thumb {
    background: #1f2937;
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-cyan);
}

/* Ambient Canvas Background */
#ambient-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
    background: radial-gradient(circle at 50% 50%, #0a1122 0%, var(--bg-dark) 100%);
}

/* Custom Cursor */
#custom-cursor {
    width: 40px;
    height: 40px;
    border: 1px solid rgba(var(--accent-cyan-rgb), 0.3);
    border-radius: 50%;
    position: fixed;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 9999;
    transition: width 0.3s, height 0.3s, border-color 0.3s;
    transition-timing-function: cubic-bezier(0.16, 1, 0.3, 1);
}

#custom-cursor-dot {
    width: 6px;
    height: 6px;
    background-color: var(--accent-cyan);
    border-radius: 50%;
    position: fixed;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 9999;
}

/* ----------------------------------------------------
   2. BILINGUAL SWITCH LOGIC
   ---------------------------------------------------- */
body.lang-en [data-lang="zh"] {
    display: none !important;
}

body.lang-zh [data-lang="en"] {
    display: none !important;
}

/* ----------------------------------------------------
   3. TYPOGRAPHY & REUSABLES
   ---------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-head);
    font-weight: 700;
}

a {
    color: inherit;
    text-decoration: none;
}

.gradient-text {
    background: linear-gradient(90deg, var(--accent-cyan) 0%, #4facfe 30%, var(--accent-purple) 70%, #e100ff 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradient-flow 6s linear infinite;
}

@keyframes gradient-flow {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.8rem;
    border-radius: 50px;
    font-family: var(--font-head);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.btn-primary {
    background: var(--grad-primary);
    color: #000;
    border: none;
    box-shadow: 0 4px 20px rgba(0, 242, 254, 0.25);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 30px rgba(0, 242, 254, 0.45);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-glass);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    border-color: var(--accent-cyan);
    background: rgba(0, 242, 254, 0.05);
    transform: translateY(-3px);
}

/* Glass Card Style Base */
.glass-panel {
    background: var(--grad-dark-glass);
    border: 1px solid var(--border-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 20px;
}

/* ----------------------------------------------------
   4. NAVIGATION NAVBAR
   ---------------------------------------------------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.2rem 2rem;
    background: rgba(3, 7, 18, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition-smooth);
}

.navbar.scrolled {
    padding: 0.8rem 2rem;
    background: rgba(3, 7, 18, 0.85);
    border-bottom: 1px solid rgba(0, 242, 254, 0.1);
}

.nav-container {
    max-width: 1300px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-head);
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.logo-highlight {
    background: var(--grad-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2.2rem;
}

.nav-link {
    font-family: var(--font-head);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    transition: var(--transition-snappy);
    padding: 0.3rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0%;
    height: 1.5px;
    background: var(--grad-primary);
    transition: var(--transition-snappy);
}

.nav-link:hover {
    color: var(--text-primary);
}

.nav-link:hover::after {
    width: 100%;
}

.btn-contact {
    color: var(--accent-cyan);
    font-weight: 600;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1.2rem;
}

/* Language toggle button */
.lang-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-glass);
    border-radius: 50px;
    padding: 0.5rem 1.1rem;
    color: var(--text-primary);
    font-family: var(--font-head);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.lang-toggle:hover {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 15px rgba(0, 242, 254, 0.2);
    background: rgba(0, 242, 254, 0.05);
}

.icon-globe {
    width: 16px;
    height: 16px;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
}

/* Mobile Navigation Drawer */
.mobile-nav {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background: rgba(3, 7, 18, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 2rem;
    z-index: 999;
    flex-direction: column;
    gap: 1.5rem;
    border-bottom: 1px solid var(--border-glass);
    transform: translateY(-120%);
    transition: var(--transition-smooth);
}

.mobile-nav.active {
    display: flex;
    transform: translateY(0);
}

.mobile-link {
    font-family: var(--font-head);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.mobile-link:hover {
    color: var(--accent-cyan);
}

/* ----------------------------------------------------
   5. HERO SECTION
   ---------------------------------------------------- */
.hero-section {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 8rem 2rem 2rem 2rem;
    max-width: 1300px;
    margin: 0 auto;
    position: relative;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8s;
    align-items: center;
    gap: 4rem;
}

@media (min-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1.2fr 0.8fr;
    }
}

.badge-premium {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    background: rgba(0, 242, 254, 0.05);
    border: 1px solid rgba(0, 242, 254, 0.15);
    padding: 0.4rem 1.2rem;
    border-radius: 50px;
    font-family: var(--font-head);
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--accent-cyan);
    margin-bottom: 1.8rem;
    letter-spacing: 0.5px;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background-color: var(--accent-cyan);
    border-radius: 50%;
    position: relative;
}

.pulse-dot::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--accent-cyan);
    border-radius: 50%;
    animation: pulse 1.8s ease-out infinite;
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 1; }
    100% { transform: scale(3); opacity: 0; }
}

.hero-title {
    font-size: 3.8rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -1.5px;
}

.chinese-name {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--text-primary);
    display: inline-block;
    margin-top: 0.5rem;
    letter-spacing: 2px;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 580px;
    margin-bottom: 2.5rem;
    font-weight: 300;
}

.hero-actions {
    display: flex;
    gap: 1.2rem;
}

/* 3D Core Sphere Visualizer */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.architect-sphere-container {
    position: relative;
    width: 320px;
    height: 320px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.architect-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(0, 242, 254, 0.1);
    animation: rotate-ring infinite linear;
}

.ring-1 {
    width: 320px;
    height: 320px;
    border-top: 1px solid rgba(var(--accent-cyan-rgb), 0.5);
    border-bottom: 1px solid rgba(var(--accent-purple-rgb), 0.5);
    animation-duration: 20s;
}

.ring-2 {
    width: 250px;
    height: 250px;
    border-left: 1.5px dashed rgba(var(--accent-cyan-rgb), 0.4);
    border-right: 1.5px dashed rgba(var(--accent-purple-rgb), 0.4);
    animation-duration: 15s;
    animation-direction: reverse;
}

.ring-3 {
    width: 180px;
    height: 180px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1.5px solid var(--accent-cyan);
    animation-duration: 10s;
}

.core-node {
    width: 90px;
    height: 90px;
    background: radial-gradient(circle at 30% 30%, #00f2fe 0%, #1a1060 100%);
    box-shadow: 0 0 45px rgba(0, 242, 254, 0.6), inset 0 0 15px rgba(255, 255, 255, 0.4);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 5;
    animation: float-pulse 4s ease-in-out infinite;
}

.core-icon {
    width: 38px;
    height: 38px;
    color: #fff;
}

@keyframes rotate-ring {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes float-pulse {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-10px) scale(1.05); }
}

/* Surrounding Orbiting Data Nodes */
.floating-node {
    position: absolute;
    width: 44px;
    height: 44px;
    background: rgba(11, 17, 30, 0.8);
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--accent-cyan);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    z-index: 6;
}

.floating-node i {
    width: 20px;
    height: 20px;
}

.node-1 { top: 10%; left: 10%; animation: float-around-1 12s ease-in-out infinite; }
.node-2 { top: 15%; right: 5%; animation: float-around-2 10s ease-in-out infinite; }
.node-3 { bottom: 10%; left: 15%; animation: float-around-3 14s ease-in-out infinite; }
.node-4 { bottom: 15%; right: 10%; animation: float-around-4 11s ease-in-out infinite; }

@keyframes float-around-1 {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(15px, -15px); color: var(--accent-purple); }
}
@keyframes float-around-2 {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(-10px, 20px); }
}
@keyframes float-around-3 {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(-15px, -15px); }
}
@keyframes float-around-4 {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(12px, 12px); color: var(--accent-purple); }
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.6rem;
    font-family: var(--font-head);
    font-size: 0.8rem;
    letter-spacing: 1px;
    color: var(--text-dim);
    text-transform: uppercase;
}

.mouse-wheel {
    width: 20px;
    height: 32px;
    border: 1.5px solid var(--text-dim);
    border-radius: 20px;
    position: relative;
}

.mouse-wheel::after {
    content: '';
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background-color: var(--accent-cyan);
    border-radius: 2px;
    animation: scroll-dot 1.5s ease-out infinite;
}

@keyframes scroll-dot {
    0% { opacity: 1; transform: translate(-50%, 0); }
    100% { opacity: 0; transform: translate(-50%, 8px); }
}

/* ----------------------------------------------------
   6. SECTION CONTAINER & REVEAL INTERSECT
   ---------------------------------------------------- */
.section-padding {
    padding: 8rem 2rem;
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    margin-bottom: 4.5rem;
}

.section-tag {
    font-family: var(--font-head);
    font-weight: 700;
    font-size: 0.8rem;
    color: var(--accent-cyan);
    letter-spacing: 1.5px;
    display: inline-block;
    margin-bottom: 0.5rem;
}

.section-title {
    font-size: 2.8rem;
    line-height: 1.2;
    letter-spacing: -0.8px;
}

/* ----------------------------------------------------
   7. ABOUT SECTION
   ---------------------------------------------------- */
.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4.5rem;
}

.paragraph-lead {
    font-size: 1.3rem;
    font-weight: 300;
    color: var(--text-primary);
    line-height: 1.5;
    margin-bottom: 1.8rem;
}

.paragraph-secondary {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
}

.tech-pill-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.tech-pill {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-glass);
    padding: 0.4rem 1.1rem;
    border-radius: 50px;
    font-family: var(--font-head);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition-snappy);
}

.tech-pill:hover {
    color: var(--accent-cyan);
    border-color: rgba(0, 242, 254, 0.3);
    background: rgba(0, 242, 254, 0.02);
}

.about-stats-grid {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    justify-content: center;
}

.stat-card {
    background: var(--grad-dark-glass);
    border: 1px solid var(--border-glass);
    padding: 2rem;
    border-radius: 20px;
    text-align: center;
    transition: var(--transition-smooth);
}

.stat-card:hover {
    border-color: rgba(var(--accent-purple-rgb), 0.3);
    box-shadow: 0 10px 30px rgba(127, 0, 255, 0.1);
    transform: translateY(-5px);
}

.stat-number {
    font-size: 2.8rem;
    font-weight: 800;
    font-family: var(--font-head);
    background: var(--grad-ai);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.2rem;
}

.stat-label {
    font-size: 0.85rem;
    font-weight: 600;
    font-family: var(--font-head);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ----------------------------------------------------
   8. TIMELINE / MILESTONES
   ---------------------------------------------------- */
.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    padding-left: 2.5rem;
}

.timeline::after {
    content: '';
    position: absolute;
    top: 0;
    left: 6px;
    width: 1px;
    height: 100%;
    background: linear-gradient(to bottom, var(--accent-cyan), var(--accent-purple), transparent);
}

.timeline-item {
    position: relative;
    margin-bottom: 4rem;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: -2.5rem;
    top: 0.4rem;
    transform: translateX(-50%);
    width: 14px;
    height: 14px;
    background-color: var(--bg-dark);
    border: 2px solid var(--accent-cyan);
    border-radius: 50%;
    z-index: 10;
    transition: var(--transition-smooth);
}

.timeline-item:hover .timeline-dot {
    background-color: var(--accent-cyan);
    box-shadow: 0 0 15px var(--accent-cyan);
}

.timeline-content {
    background: var(--grad-dark-glass);
    border: 1px solid var(--border-glass);
    padding: 2.2rem;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    transition: var(--transition-smooth);
}

.timeline-content:hover {
    border-color: rgba(var(--accent-cyan-rgb), 0.25);
    box-shadow: 0 8px 30px rgba(0, 242, 254, 0.05);
}

.timeline-date {
    display: inline-block;
    font-family: var(--font-head);
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--accent-cyan);
    margin-bottom: 0.8rem;
    letter-spacing: 1px;
}

.timeline-item-title {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.timeline-item-desc {
    color: var(--text-secondary);
    font-size: 0.98rem;
    margin-bottom: 1.5rem;
}

.timeline-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-head);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--accent-cyan);
    transition: var(--transition-snappy);
}

.timeline-link i {
    width: 14px;
    height: 14px;
}

.timeline-link:hover {
    color: var(--text-primary);
    transform: translateX(3px);
}

/* ----------------------------------------------------
   9. PROJECTS GRID
   ---------------------------------------------------- */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--grad-dark-glass);
    border: 1px solid var(--border-glass);
    padding: 2.2rem;
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: var(--transition-smooth);
    min-height: 290px;
    position: relative;
    overflow: hidden;
    transform-style: preserve-3d;
    transform: perspective(1000px);
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--grad-primary);
    opacity: 0;
    transition: var(--transition-smooth);
}

.project-card:hover {
    border-color: var(--border-hover);
    box-shadow: 0 12px 40px rgba(0, 242, 254, 0.08);
}

.project-card:hover::before {
    opacity: 1;
}

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

.project-icon {
    width: 28px;
    height: 28px;
    color: var(--accent-cyan);
}

.project-stars {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-family: var(--font-head);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.project-stars i {
    width: 14px;
    height: 14px;
    fill: var(--text-secondary);
}

.project-title {
    font-size: 1.35rem;
    margin-bottom: 0.8rem;
    font-family: var(--font-mono);
    color: var(--text-primary);
}

.project-desc {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 2rem;
    flex-grow: 1;
}

.project-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 1.2rem;
}

.project-lang {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-dim);
}

.project-link {
    color: var(--text-secondary);
    transition: var(--transition-snappy);
}

.project-link i {
    width: 20px;
    height: 20px;
}

.project-link:hover {
    color: var(--accent-cyan);
    transform: scale(1.15);
}

/* ----------------------------------------------------
   10. INTERACTIVE TERMINAL
   ---------------------------------------------------- */
.terminal-container {
    max-width: 900px;
    margin: 0 auto;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 40px rgba(0, 242, 254, 0.05);
    border: 1px solid rgba(0, 242, 254, 0.15);
}

.terminal-header {
    background: #0f172a;
    padding: 0.8rem 1.2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #1e293b;
}

.terminal-buttons {
    display: flex;
    gap: 0.5rem;
}

.term-btn {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.term-btn-red { background-color: #ef4444; }
.term-btn-yellow { background-color: #eab308; }
.term-btn-green { background-color: #22c55e; }

.terminal-title {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: var(--text-dim);
}

.terminal-badge {
    background-color: #1e293b;
    color: var(--accent-cyan);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 600;
    padding: 0.15rem 0.6rem;
    border-radius: 4px;
    letter-spacing: 0.5px;
}

.terminal-body {
    background: #020617;
    padding: 1.8rem;
    height: 400px;
    overflow-y: auto;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.5;
}

.term-line {
    margin-bottom: 0.4rem;
    word-break: break-all;
    white-space: pre-wrap;
}

.system-text {
    color: #10b981;
}

.text-dim {
    color: var(--text-dim);
}

.term-highlight {
    color: var(--accent-cyan);
}

.term-input-line {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.8rem;
}

.term-prompt {
    color: var(--accent-purple);
    font-weight: 600;
    flex-shrink: 0;
}

#terminal-input {
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    width: 100%;
    caret-color: var(--accent-cyan);
}

/* ----------------------------------------------------
   11. CONTACT SECTION
   ---------------------------------------------------- */
.contact-grid {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 5rem;
    align-items: flex-start;
}

.contact-lead-title {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    line-height: 1.3;
}

.contact-desc {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: 3rem;
}

.social-channels {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.social-card {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-glass);
    padding: 1.2rem;
    border-radius: 16px;
    transition: var(--transition-smooth);
}

.social-card:hover {
    border-color: rgba(var(--accent-cyan-rgb), 0.3);
    box-shadow: 0 8px 25px rgba(0, 242, 254, 0.05);
    transform: translateX(5px);
}

.social-icon-wrapper {
    width: 48px;
    height: 48px;
    background: rgba(0, 242, 254, 0.05);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--accent-cyan);
}

.social-icon-wrapper i {
    width: 22px;
    height: 22px;
}

.social-meta {
    display: flex;
    flex-direction: column;
}

.social-label {
    font-family: var(--font-head);
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.social-id {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* Floating Input Form Custom System */
.gcp-styled-form {
    display: flex;
    flex-direction: column;
    gap: 1.8rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.8rem;
}

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

.input-group input,
.input-group textarea {
    width: 100%;
    padding: 1rem 1.2rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    outline: none;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: var(--transition-snappy);
}

.input-group textarea {
    resize: none;
}

.input-group label {
    position: absolute;
    left: 1.2rem;
    top: 1rem;
    color: var(--text-dim);
    font-family: var(--font-head);
    font-size: 0.95rem;
    font-weight: 500;
    pointer-events: none;
    transition: var(--transition-snappy);
    transform-origin: left top;
}

/* Floating Animation */
.input-group input:focus ~ label,
.input-group input:not(:placeholder-shown) ~ label,
.input-group textarea:focus ~ label,
.input-group textarea:not(:placeholder-shown) ~ label {
    transform: translateY(-1.75rem) scale(0.8);
    color: var(--accent-cyan);
    font-weight: 700;
}

.input-group input:focus,
.input-group textarea:focus {
    border-color: var(--accent-cyan);
    background: rgba(0, 242, 254, 0.02);
    box-shadow: 0 0 15px rgba(0, 242, 254, 0.1);
}

.btn-submit {
    align-self: flex-start;
    padding: 1rem 2.2rem;
}

/* ----------------------------------------------------
   12. FOOTER
   ---------------------------------------------------- */
.footer {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    background-color: #020613;
    padding: 2.5rem 2rem;
    font-family: var(--font-head);
    font-size: 0.9rem;
    color: var(--text-dim);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: var(--text-dim);
    transition: var(--transition-snappy);
}

.footer-links a:hover {
    color: var(--accent-cyan);
}

.footer-links i {
    width: 20px;
    height: 20px;
}

/* ----------------------------------------------------
   13. RESPONSIVE MEDIA QUERIES
   ---------------------------------------------------- */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .hero-subtitle {
        margin: 0 auto 2.5rem auto;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 3.5rem;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 3.5rem;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 15px;
    }
    
    .navbar {
        padding: 1.2rem 1.5rem;
    }
    
    .nav-links {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .hero-title {
        font-size: 2.8rem;
    }
    
    .chinese-name {
        font-size: 2.2rem;
    }
    
    .section-title {
        font-size: 2.2rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 1.8rem;
    }
    
    .footer-container {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }
    
    .timeline {
        padding-left: 1.5rem;
    }
}

/* Intersect Observer Animations */
.reveal-item {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-item.revealed {
    opacity: 1;
    transform: translateY(0);
}