/* ===== CSS Variables & Reset ===== */
:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: #1a1a2e;
    --bg-card-hover: #1f1f35;
    --text-primary: #e4e4e7;
    --text-secondary: #a1a1aa;
    --text-muted: #8a8a96;
    --accent: #6366f1;
    --accent-light: #818cf8;
    --accent-dark: #4f46e5;
    --accent-glow: rgba(99, 102, 241, 0.3);
    --gold: #f59e0b;
    --silver: #94a3b8;
    --bronze: #d97706;
    --success: #22c55e;
    --border: rgba(255, 255, 255, 0.06);
    --nav-height: 70px;
    --radius: 12px;
    --radius-sm: 8px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-main: 'Inter', -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

[data-theme="light"] {
    --bg-primary: #fafafa;
    --bg-secondary: #f4f4f5;
    --bg-card: #ffffff;
    --bg-card-hover: #f9f9fb;
    --text-primary: #18181b;
    --text-secondary: #52525b;
    --text-muted: #71717a;
    --border: rgba(0, 0, 0, 0.08);
    --accent-glow: rgba(99, 102, 241, 0.15);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
}

body {
    font-family: var(--font-main);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
}

a { color: var(--accent-light); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent); }

/* Skip to content for accessibility */
.skip-to-content {
    position: fixed;
    top: -100%;
    left: 16px;
    z-index: 10000;
    padding: 12px 24px;
    background: var(--accent);
    color: #fff;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
    transition: top 0.2s;
}

.skip-to-content:focus {
    top: 16px;
    color: #fff;
}

/* Screen reader only utility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus visible for keyboard navigation */
:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== Cursor Glow ===== */
.cursor-glow {
    position: fixed;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: opacity 0.5s;
}

body:hover .cursor-glow { opacity: 1; }

[data-theme="light"] .cursor-glow { display: none; }

/* ===== Navigation ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 40px;
    z-index: 1000;
    backdrop-filter: blur(20px);
    background: rgba(10, 10, 15, 0.8);
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}

[data-theme="light"] .nav { background: rgba(250, 250, 250, 0.85); }

.nav.scrolled { box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1); }

.nav-logo {
    font-family: var(--font-mono);
    font-size: 1.2rem;
    font-weight: 600;
    display: flex;
    gap: 2px;
}

.logo-bracket { color: var(--accent); }
.logo-name { color: var(--text-primary); }

.nav-links {
    display: flex;
    list-style: none;
    gap: 8px;
}

.nav-link {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    position: relative;
}

.nav-link:hover, .nav-link.active {
    color: var(--accent-light);
    background: var(--accent-glow);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
    border-radius: 2px;
}

.theme-toggle {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    font-size: 1rem;
}

.theme-toggle:hover {
    color: var(--accent);
    border-color: var(--accent);
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: calc(var(--nav-height) + 40px) 24px 40px;
    overflow: hidden;
}

.hero-particles {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-content {
    max-width: 1200px;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-greeting {
    font-family: var(--font-mono);
    color: var(--accent);
    font-size: 1rem;
    margin-bottom: 12px;
}

.hero-name {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 16px;
}

.name-first { color: var(--text-primary); }
.name-last {
    background: linear-gradient(135deg, var(--accent), var(--accent-light), #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-typewriter {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    min-height: 2rem;
}

.typewriter-prefix { color: var(--text-muted); }
.typewriter-text { color: var(--accent-light); }
.typewriter-cursor {
    color: var(--accent);
    animation: blink 1s infinite;
}

@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

.hero-description {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 520px;
    margin-bottom: 32px;
}

.hero-cta { display: flex; gap: 16px; margin-bottom: 32px; }

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-family: var(--font-main);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    color: white;
    box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--accent-glow);
    color: white;
}

.btn-secondary {
    background: transparent;
    color: var(--accent-light);
    border: 1px solid var(--accent);
}

.btn-secondary:hover {
    background: var(--accent-glow);
    transform: translateY(-2px);
}

.btn-full { width: 100%; justify-content: center; }

.hero-socials { display: flex; gap: 16px; }

.hero-socials a {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1.1rem;
    transition: var(--transition);
}

.hero-socials a:hover {
    color: var(--accent);
    border-color: var(--accent);
    transform: translateY(-3px);
    box-shadow: 0 4px 15px var(--accent-glow);
}

/* Hero Image */
.hero-image { display: flex; flex-direction: column; align-items: center; gap: 30px; }

.image-wrapper {
    position: relative;
    width: 320px;
    height: 320px;
}

.image-border {
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), #a78bfa, var(--accent-light));
    animation: rotate-border 6s linear infinite;
}

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

.image-placeholder {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: var(--bg-card);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.9rem;
    overflow: hidden;
}

.image-placeholder i { font-size: 3rem; }

.image-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.image-initials {
    font-size: 5rem;
    font-weight: 900;
    font-family: var(--font-mono);
    background: linear-gradient(135deg, var(--accent), var(--accent-light), #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    user-select: none;
    line-height: 1;
}

.hero-stats {
    display: flex;
    gap: 32px;
}

.stat { text-align: center; }

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent-light);
    font-family: var(--font-mono);
}

.stat-plus { color: var(--accent); font-weight: 700; font-size: 1.5rem; }

.stat-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.75rem;
    animation: float 3s ease-in-out infinite;
}

.mouse {
    width: 24px;
    height: 38px;
    border: 2px solid var(--text-muted);
    border-radius: 12px;
    position: relative;
}

.mouse-wheel {
    width: 3px;
    height: 8px;
    background: var(--accent);
    border-radius: 2px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll-wheel 2s ease-in-out infinite;
}

@keyframes scroll-wheel { 0%, 100% { opacity: 1; top: 6px; } 50% { opacity: 0.3; top: 18px; } }
@keyframes float { 0%, 100% { transform: translateX(-50%) translateY(0); } 50% { transform: translateX(-50%) translateY(-10px); } }

/* Animate In */
.animate-in {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s forwards;
}

.animate-in:nth-child(1) { animation-delay: 0.1s; }
.animate-in:nth-child(2) { animation-delay: 0.2s; }
.animate-in:nth-child(3) { animation-delay: 0.3s; }
.animate-in:nth-child(4) { animation-delay: 0.4s; }
.animate-in:nth-child(5) { animation-delay: 0.5s; }
.animate-in:nth-child(6) { animation-delay: 0.6s; }

@keyframes fadeInUp {
    to { opacity: 1; transform: translateY(0); }
}

/* ===== Sections ===== */
.section {
    padding: 100px 0;
    position: relative;
}

.section-title {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 60px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.section-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
    max-width: 300px;
}

.section-number {
    font-family: var(--font-mono);
    color: var(--accent);
    font-size: 1.1rem;
    font-weight: 500;
}

/* ===== About ===== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-size: 1.05rem;
}

.about-details {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 24px;
}

.detail {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
}

.detail i { color: var(--accent); width: 20px; text-align: center; }

.about-fun-facts h3 {
    font-size: 1.3rem;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.fun-facts-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.fun-fact {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    text-align: center;
    transition: var(--transition);
}

.fun-fact:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 8px 30px var(--accent-glow);
}

.fun-fact i { font-size: 1.5rem; color: var(--accent); margin-bottom: 8px; }

.fun-fact-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-primary);
    font-family: var(--font-mono);
}

.fun-fact-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ===== Experience Timeline ===== */
.timeline {
    position: relative;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 7px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--accent), transparent);
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
    opacity: 0;
    transform: translateX(-20px);
    transition: all 0.6s ease;
}

.timeline-item.visible {
    opacity: 1;
    transform: translateX(0);
}

.timeline-dot {
    position: absolute;
    left: -40px;
    top: 8px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent);
    border: 3px solid var(--bg-primary);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.timeline-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    transition: var(--transition);
}

.timeline-content:hover {
    border-color: var(--accent);
    box-shadow: 0 4px 20px var(--accent-glow);
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
    flex-wrap: wrap;
    gap: 8px;
}

.timeline-header h3 { font-size: 1.2rem; font-weight: 700; }

.timeline-header h4 {
    color: var(--accent-light);
    font-size: 0.95rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 4px;
}

.timeline-date {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-muted);
    white-space: nowrap;
}

.timeline-content p { color: var(--text-secondary); font-size: 0.95rem; margin-bottom: 16px; }

.timeline-list {
    list-style: none;
    padding: 0;
    margin: 0 0 16px 0;
}

.timeline-list li {
    color: var(--text-secondary);
    font-size: 0.92rem;
    padding-left: 16px;
    position: relative;
    margin-bottom: 8px;
    line-height: 1.6;
}

.timeline-list li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-size: 0.9rem;
}

.timeline-tags { display: flex; flex-wrap: wrap; gap: 8px; }

.tag {
    font-size: 0.75rem;
    padding: 4px 12px;
    border-radius: 20px;
    background: var(--accent-glow);
    color: var(--accent-light);
    font-weight: 500;
    font-family: var(--font-mono);
}

/* ===== System Design ===== */
.sd-intro {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 700px;
    margin-bottom: 40px;
}

.sd-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 24px;
}

.sd-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.sd-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
}

.sd-card:hover {
    border-color: var(--accent);
    transform: translateY(-6px);
    box-shadow: 0 12px 40px var(--accent-glow);
}

.sd-icon {
    font-size: 1.5rem;
    color: var(--accent);
    margin-bottom: 16px;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    background: var(--accent-glow);
    display: flex;
    align-items: center;
    justify-content: center;
}

.sd-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.sd-card > p {
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.7;
    margin-bottom: 20px;
}

.sd-details {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
}

.sd-detail {
    display: flex;
    gap: 12px;
    font-size: 0.85rem;
    line-height: 1.5;
}

.sd-detail-label {
    color: var(--accent-light);
    font-weight: 600;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    min-width: 100px;
    flex-shrink: 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding-top: 2px;
}

.sd-detail-value {
    color: var(--text-secondary);
}

.sd-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.sd-tech span {
    font-size: 0.7rem;
    padding: 3px 10px;
    border-radius: 12px;
    background: var(--accent-glow);
    color: var(--accent-light);
    font-family: var(--font-mono);
    font-weight: 500;
}

@media (max-width: 768px) {
    .sd-grid { grid-template-columns: 1fr; }
    .sd-detail { flex-direction: column; gap: 2px; }
    .sd-detail-label { min-width: auto; }
}

/* ===== Projects ===== */
.project-filters {
    display: flex;
    gap: 8px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 8px 20px;
    border-radius: 20px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-main);
}

.filter-btn:hover, .filter-btn.active {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 24px;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
}

.project-card.filtered-out {
    display: none;
}

.project-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent);
    box-shadow: 0 12px 40px var(--accent-glow);
}

.project-image {
    position: relative;
    height: 200px;
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-card));
    overflow: hidden;
}

.project-image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--accent);
    opacity: 0.3;
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: rgba(99, 102, 241, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    opacity: 0;
    transition: var(--transition);
}

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

.project-link {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: white;
    color: var(--accent-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    transform: translateY(20px);
    transition: var(--transition);
}

.project-card:hover .project-link { transform: translateY(0); }
.project-link:hover { transform: scale(1.1) !important; }

.project-info { padding: 24px; }

.project-category {
    font-size: 0.75rem;
    color: var(--accent);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.project-info h3 { font-size: 1.2rem; margin: 8px 0; }

.project-info p { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 16px; }

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.project-tech span {
    font-size: 0.7rem;
    padding: 3px 10px;
    border-radius: 12px;
    background: var(--bg-secondary);
    color: var(--text-muted);
    font-family: var(--font-mono);
}

/* Hidden projects & Show More */
.show-more-wrapper {
    text-align: center;
    margin-top: 40px;
}

.show-more-wrapper .btn i {
    transition: transform 0.3s ease;
}

.show-more-wrapper .btn.expanded i {
    transform: rotate(180deg);
}

/* ===== Skills ===== */
.skills-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.skill-tab {
    padding: 10px 24px;
    border-radius: 20px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-main);
}

.skill-tab:hover, .skill-tab.active {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

.skills-panel { display: none; }
.skills-panel.active { display: block; animation: fadeIn 0.4s ease; }

@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
}

.skill-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    transition: var(--transition);
}

.skill-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 8px 30px var(--accent-glow);
}

.skill-icon {
    font-size: 1.8rem;
    color: var(--accent);
    margin-bottom: 12px;
}

.skill-card h4 { font-size: 1rem; margin-bottom: 12px; }

.skill-bar {
    height: 6px;
    background: var(--bg-secondary);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 8px;
}

.skill-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
    border-radius: 3px;
    width: 0;
    transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.skill-level {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

/* Concepts Grid */
.concepts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 16px;
}

.concept-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: var(--transition);
    cursor: default;
}

.concept-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px var(--accent-glow);
}

.concept-card i { color: var(--accent); font-size: 1.2rem; flex-shrink: 0; }
.concept-card span { font-size: 0.9rem; font-weight: 500; }

/* ===== Competitions ===== */
.competitions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(500px, 1fr));
    gap: 24px;
}

.competition-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    display: flex;
    gap: 24px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.competition-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
}

.competition-card.gold::before { background: var(--gold); }
.competition-card.silver::before { background: var(--silver); }
.competition-card.bronze::before { background: var(--bronze); }
.competition-card.participant::before { background: var(--accent); }

.competition-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px var(--accent-glow);
}

.competition-medal {
    font-size: 2rem;
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gold .competition-medal { color: var(--gold); background: rgba(245, 158, 11, 0.1); }
.silver .competition-medal { color: var(--silver); background: rgba(148, 163, 184, 0.1); }
.bronze .competition-medal { color: var(--bronze); background: rgba(217, 119, 6, 0.1); }
.participant .competition-medal { color: var(--accent); background: var(--accent-glow); }

.competition-info h3 { font-size: 1.1rem; margin-bottom: 4px; }

.competition-result {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
    display: inline-block;
    margin-bottom: 8px;
}

.gold .competition-result { color: var(--gold); }
.silver .competition-result { color: var(--silver); }
.bronze .competition-result { color: var(--bronze); }
.participant .competition-result { color: var(--accent-light); }

.competition-info p { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 12px; }

.competition-tags { display: flex; flex-wrap: wrap; gap: 6px; }

.competition-tags span {
    font-size: 0.7rem;
    padding: 3px 10px;
    border-radius: 12px;
    background: var(--bg-secondary);
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.competition-location {
    display: block;
    margin-top: 12px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.competition-location i {
    color: var(--accent);
    margin-right: 4px;
    font-size: 0.75rem;
}

/* ===== Publications ===== */

/* Hero Tech Stack Pills */
.hero-tech-stack {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.tech-pill {
    font-size: 0.75rem;
    padding: 4px 14px;
    border-radius: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--accent-light);
    font-family: var(--font-mono);
    font-weight: 500;
}

/* Company Logos */
.company-logo {
    border-radius: 4px;
    vertical-align: middle;
    margin-right: 2px;
}

/* Certifications */
.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.cert-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    display: flex;
    gap: 16px;
    align-items: center;
    transition: var(--transition);
}

.cert-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 8px 30px var(--accent-glow);
}

.cert-badge {
    font-size: 2rem;
    color: var(--accent);
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    border-radius: var(--radius);
    background: var(--accent-glow);
    display: flex;
    align-items: center;
    justify-content: center;
}

.cert-info h3 { font-size: 1rem; margin-bottom: 4px; }
.cert-issuer { font-size: 0.85rem; color: var(--text-secondary); display: block; margin-bottom: 8px; }

.cert-status {
    font-size: 0.7rem;
    padding: 3px 10px;
    border-radius: 12px;
    font-family: var(--font-mono);
    font-weight: 600;
    display: inline-block;
}

.cert-status.earned { background: rgba(34, 197, 94, 0.15); color: #22c55e; }
.cert-status.pursuing { background: rgba(245, 158, 11, 0.15); color: #f59e0b; }

/* Writing Callout (Medium) */
.writing-callout {
    margin-top: 40px;
    padding: 24px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    gap: 20px;
    transition: var(--transition);
}

.writing-callout:hover {
    border-color: var(--accent);
    box-shadow: 0 4px 20px var(--accent-glow);
}

.writing-callout > i {
    font-size: 2rem;
    color: var(--text-secondary);
    flex-shrink: 0;
}

.writing-callout h3 { font-size: 1rem; margin-bottom: 4px; }
.writing-callout p { font-size: 0.9rem; color: var(--text-secondary); }
.writing-callout .btn { flex-shrink: 0; margin-left: auto; }

/* Featured Project Badge */
.project-card[data-featured="true"] {
    border-color: rgba(245, 158, 11, 0.3);
}

.project-card[data-featured="true"]::before {
    content: '★ Featured';
    position: absolute;
    top: 12px;
    right: 12px;
    font-size: 0.65rem;
    padding: 3px 10px;
    border-radius: 12px;
    background: rgba(245, 158, 11, 0.15);
    color: #f59e0b;
    font-family: var(--font-mono);
    font-weight: 600;
    z-index: 2;
    letter-spacing: 0.5px;
}

.project-card { position: relative; }

/* Copy Email Button */
.copy-email-btn {
    background: none;
    border: 1px solid var(--border);
    color: var(--text-muted);
    width: 32px;
    height: 32px;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    flex-shrink: 0;
    margin-left: auto;
    font-size: 0.8rem;
}

.copy-email-btn:hover {
    color: var(--accent);
    border-color: var(--accent);
}

.copy-email-btn.copied {
    color: var(--success);
    border-color: var(--success);
}

/* Toast Notification */
.toast-notification {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    padding: 12px 24px;
    background: var(--bg-card);
    border: 1px solid var(--accent);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 500;
    z-index: 9000;
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
    pointer-events: none;
    box-shadow: 0 8px 30px var(--accent-glow);
}

.toast-notification.visible {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* Section reveal animation */
.section {
    padding: 100px 0;
    position: relative;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.section.section-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Keep hero always visible */
.hero {
    opacity: 1 !important;
    transform: none !important;
}

/* Skills loading skeleton */
.skills-panel .skills-grid {
    transition: opacity 0.3s ease;
}

@media (max-width: 768px) {
    .writing-callout { flex-direction: column; text-align: center; }
    .writing-callout .btn { margin-left: 0; }
    .certifications-grid { grid-template-columns: 1fr; }
    .hero-tech-stack { justify-content: center; }
}

.publications-grid {
    display: grid;
    gap: 24px;
}

.publication-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    display: flex;
    gap: 24px;
    transition: var(--transition);
}

.publication-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 8px 30px var(--accent-glow);
}

.publication-icon {
    font-size: 2rem;
    color: var(--accent);
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    border-radius: var(--radius);
    background: var(--accent-glow);
    display: flex;
    align-items: center;
    justify-content: center;
}

.publication-info h3 {
    font-size: 1.2rem;
    margin-bottom: 8px;
}

.publication-authors {
    color: var(--accent-light);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 4px;
}

.publication-venue {
    color: var(--text-muted);
    font-size: 0.85rem;
    font-family: var(--font-mono);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.publication-venue i {
    color: var(--accent);
    font-size: 0.8rem;
}

.publication-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 16px;
    line-height: 1.7;
}

.publication-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.publication-tags span {
    font-size: 0.75rem;
    padding: 4px 12px;
    border-radius: 20px;
    background: var(--accent-glow);
    color: var(--accent-light);
    font-weight: 500;
    font-family: var(--font-mono);
}

.publication-links {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

@media (max-width: 768px) {
    .publication-card {
        flex-direction: column;
    }
}

/* ===== Education ===== */
.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 24px;
}

.education-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    display: flex;
    gap: 24px;
    transition: var(--transition);
}

.education-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 8px 30px var(--accent-glow);
}

.education-icon {
    font-size: 2rem;
    color: var(--accent);
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    border-radius: var(--radius);
    background: var(--accent-glow);
    display: flex;
    align-items: center;
    justify-content: center;
}

.education-info h3 { font-size: 1.2rem; margin-bottom: 4px; }
.education-info h4 { color: var(--accent-light); font-size: 0.95rem; font-weight: 500; margin-bottom: 4px; }

.education-date {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
    display: inline-block;
    margin-bottom: 12px;
}

.education-info p { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 16px; }

.education-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.education-highlights span {
    font-size: 0.8rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.education-highlights i { color: var(--gold); font-size: 0.75rem; }

/* ===== Contact ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-info h3 { font-size: 1.5rem; margin-bottom: 16px; }
.contact-info > p { color: var(--text-secondary); margin-bottom: 16px; font-size: 1.05rem; }

.contact-looking-for {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
    background: var(--accent-glow);
    border: 1px solid var(--accent);
    border-radius: var(--radius);
    color: var(--accent-light);
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: 32px;
    line-height: 1.6;
}

.contact-looking-for i {
    color: var(--accent);
    margin-top: 3px;
    flex-shrink: 0;
}

.contact-methods { display: flex; flex-direction: column; gap: 16px; }

.contact-method {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: var(--transition);
    color: var(--text-primary);
}

.contact-method:hover {
    border-color: var(--accent);
    transform: translateX(8px);
    color: var(--text-primary);
}

.contact-method i {
    font-size: 1.3rem;
    color: var(--accent);
    width: 24px;
    text-align: center;
}

.contact-method-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.contact-form { display: flex; flex-direction: column; gap: 20px; }

.form-group {
    position: relative;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 0.95rem;
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group label {
    position: absolute;
    left: 16px;
    top: 16px;
    color: var(--text-muted);
    font-size: 0.95rem;
    transition: var(--transition);
    pointer-events: none;
    background: var(--bg-card);
    padding: 0 4px;
}

.form-group input:focus ~ label,
.form-group input:not(:placeholder-shown) ~ label,
.form-group textarea:focus ~ label,
.form-group textarea:not(:placeholder-shown) ~ label {
    top: -8px;
    font-size: 0.75rem;
    color: var(--accent);
}

.form-group textarea { resize: vertical; min-height: 120px; }

.char-counter {
    display: block;
    text-align: right;
    font-size: 0.75rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
    margin-top: 6px;
}

.char-counter.near-limit { color: var(--gold); }
.char-counter.at-limit { color: #ef4444; }

.form-group input:invalid:not(:placeholder-shown),
.form-group textarea:invalid:not(:placeholder-shown) {
    border-color: #ef4444;
}

.form-group input:valid:not(:placeholder-shown),
.form-group textarea:valid:not(:placeholder-shown) {
    border-color: var(--success);
}

.form-error {
    color: #ef4444;
    font-size: 0.75rem;
    margin-top: 4px;
    display: none;
}

.form-group input:invalid:not(:placeholder-shown) ~ .form-error,
.form-group textarea:invalid:not(:placeholder-shown) ~ .form-error {
    display: block;
}

/* ===== Footer ===== */
.footer {
    padding: 40px 0;
    border-top: 1px solid var(--border);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.footer-socials { display: flex; gap: 16px; }

.footer-socials a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: var(--transition);
}

.footer-socials a:hover {
    color: var(--accent);
    border-color: var(--accent);
}

.footer-text {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.footer-shortcut {
    color: var(--text-muted);
    font-size: 0.75rem;
    opacity: 0.6;
}

.footer-shortcut kbd {
    display: inline-block;
    padding: 2px 8px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-secondary);
}

.footer-text i { color: #ef4444; }

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .nav { padding: 0 20px; }

    .nav-links {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: var(--bg-primary);
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border);
        transform: translateY(-100%);
        opacity: 0;
        transition: var(--transition);
        pointer-events: none;
    }

    .nav-links.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    .nav-toggle { display: flex; }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

    .hero-description { margin-left: auto; margin-right: auto; }
    .hero-cta { justify-content: center; flex-wrap: wrap; }
    .hero-socials { justify-content: center; }

    .image-wrapper { width: 240px; height: 240px; }

    .about-grid { grid-template-columns: 1fr; gap: 40px; }
    .contact-grid { grid-template-columns: 1fr; gap: 40px; }
    .competitions-grid { grid-template-columns: 1fr; }
    .education-grid { grid-template-columns: 1fr; }
    .projects-grid { grid-template-columns: 1fr; }

    .competition-card { flex-direction: column; align-items: flex-start; }
    .education-card { flex-direction: column; }

    .timeline { padding-left: 30px; }
    .timeline-dot { left: -30px; }

    .section { padding: 60px 0; }
    .section-title { font-size: 1.5rem; }
}

@media (max-width: 480px) {
    .hero-name { font-size: 2rem; }
    .hero-stats { gap: 20px; }
    .stat-number { font-size: 1.5rem; }
    .btn { padding: 12px 20px; font-size: 0.85rem; }
    .fun-facts-grid { grid-template-columns: 1fr; }
    .skills-grid { grid-template-columns: 1fr; }
    .concepts-grid { grid-template-columns: 1fr 1fr; }
}

/* ===== Game Explorer Mode ===== */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.game-toggle {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    font-size: 1rem;
}

.game-toggle:hover {
    color: #22c55e;
    border-color: #22c55e;
    box-shadow: 0 0 15px rgba(34, 197, 94, 0.3);
}

.game-toggle.active {
    background: #22c55e;
    color: white;
    border-color: #22c55e;
}

#gameWrapper {
    position: fixed;
    inset: 0;
    top: var(--nav-height);
    z-index: 500;
    background: #1a2e0a;
    display: flex;
    align-items: center;
    justify-content: center;
}

#gameCanvas {
    outline: none;
    border-radius: 4px;
    image-rendering: pixelated;
}

[data-theme="light"] #gameWrapper {
    background: #e8f5e9;
}

body.game-mode .hero,
body.game-mode .footer,
body.game-mode .scroll-indicator {
    display: none;
}

body.game-mode > .section {
    display: none;
}

/* ===== Game Info Panel ===== */
#gameModal {
    position: fixed;
    inset: 0;
    z-index: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

#gameModal.open { opacity: 1; pointer-events: all; }

.game-panel-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(3px);
}

.game-panel {
    position: relative;
    width: 900px;
    max-width: 92vw;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    background: linear-gradient(180deg, #1a1a2e 0%, #12121a 100%);
    border: 2px solid rgba(99, 102, 241, 0.4);
    border-radius: 16px;
    box-shadow: 0 0 40px rgba(99, 102, 241, 0.15), 0 20px 60px rgba(0,0,0,0.5);
    overflow: hidden;
    transform: translateY(20px) scale(0.96);
    transition: transform 0.3s ease;
}

#gameModal.open .game-panel {
    transform: translateY(0) scale(1);
}

.gp-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 20px 24px 16px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    background: rgba(99, 102, 241, 0.06);
}

.gp-title {
    font-size: 1.3rem;
    font-weight: 800;
    color: #e4e4e7;
    font-family: 'Inter', sans-serif;
}

.gp-subtitle {
    font-size: 0.8rem;
    color: #71717a;
    font-family: 'JetBrains Mono', monospace;
    margin-top: 2px;
}

.gp-close {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    color: #a1a1aa;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    flex-shrink: 0;
}

.gp-close:hover {
    background: rgba(239, 68, 68, 0.2);
    border-color: rgba(239, 68, 68, 0.4);
    color: #ef4444;
}

.gp-body {
    flex: 1;
    overflow-y: auto;
    padding: 16px 24px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.gp-body::-webkit-scrollbar { width: 5px; }
.gp-body::-webkit-scrollbar-track { background: transparent; }
.gp-body::-webkit-scrollbar-thumb { background: rgba(99,102,241,0.3); border-radius: 3px; }

.gp-item {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 10px;
    padding: 14px 16px;
    transition: border-color 0.2s;
}

.gp-item:hover {
    border-color: rgba(99, 102, 241, 0.3);
}

.gp-item-header {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 8px;
}

.gp-item-icon {
    font-size: 1.3rem;
    flex-shrink: 0;
    margin-top: 1px;
}

.gp-item-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: #e4e4e7;
}

.gp-date {
    font-size: 0.72rem;
    color: #6366f1;
    font-family: 'JetBrains Mono', monospace;
}

.gp-item-body {
    padding-left: 34px;
}

.gp-line {
    font-size: 0.82rem;
    color: #a1a1aa;
    line-height: 1.6;
    position: relative;
    padding-left: 12px;
}

.gp-line::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: #6366f1;
    font-size: 0.75rem;
}

.gp-spacer { height: 6px; }

.gp-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    padding-left: 34px;
    margin-top: 8px;
}

.gp-tags span {
    font-size: 0.65rem;
    padding: 2px 8px;
    border-radius: 10px;
    background: rgba(99, 102, 241, 0.15);
    color: #818cf8;
    font-family: 'JetBrains Mono', monospace;
}

.gp-footer {
    padding: 10px 24px;
    border-top: 1px solid rgba(255,255,255,0.06);
    text-align: center;
}

.gp-body .section {
    display: block !important;
    padding: 0 !important;
}

.gp-body .section-title {
    margin-bottom: 24px;
}

.gp-body .container {
    padding: 0;
}

.gp-hint {
    font-size: 0.7rem;
    color: #52525b;
    font-family: 'JetBrains Mono', monospace;
}

@media (max-width: 768px) {
    .game-panel { width: 95vw; max-height: 85vh; }
    .gp-body { padding: 12px 16px; }
    .gp-item-body { padding-left: 0; }
    .gp-tags { padding-left: 0; }
}

/* ===== Mobile Touch Controls ===== */
#gameTouchControls {
    position: fixed;
    inset: 0;
    top: var(--nav-height);
    z-index: 510;
    pointer-events: none;
}

.touch-joystick-zone {
    position: absolute;
    left: 0;
    bottom: 0;
    width: 50%;
    height: 60%;
    pointer-events: all;
}

.touch-joystick-base {
    position: absolute;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.25);
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    opacity: 0.5;
    transition: opacity 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.touch-joystick-knob {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.35);
    border: 2px solid rgba(255, 255, 255, 0.5);
    transition: transform 0.05s;
}

.touch-buttons {
    position: absolute;
    right: 20px;
    bottom: 60px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    pointer-events: all;
}

.touch-btn {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.3);
    background: rgba(0, 0, 0, 0.4);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    font-family: 'JetBrains Mono', monospace;
    letter-spacing: 0.5px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
}

.touch-btn-enter {
    background: rgba(99, 102, 241, 0.4);
    border-color: rgba(99, 102, 241, 0.6);
}

.touch-btn-esc {
    width: 48px;
    height: 48px;
    font-size: 10px;
    background: rgba(239, 68, 68, 0.3);
    border-color: rgba(239, 68, 68, 0.5);
}

@media (min-width: 769px) {
    #gameTouchControls { display: none; }
}

/* ===== Scroll Progress Bar ===== */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
    z-index: 1001;
    width: 0;
    transition: width 0.1s linear;
    will-change: width;
}

/* ===== Back to Top ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 900;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.3s, transform 0.3s, background 0.2s;
    pointer-events: none;
    box-shadow: 0 4px 15px var(--accent-glow);
}

.back-to-top.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: all;
}

.back-to-top:hover {
    background: var(--accent-dark);
    transform: translateY(-3px);
}

body.game-mode .back-to-top { display: none; }
body.game-mode .scroll-progress { display: none; }

/* ===== Command Palette ===== */
.cmd-palette {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 20vh;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}

.cmd-palette.open {
    opacity: 1;
    pointer-events: all;
}

.cmd-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(4px);
}

.cmd-box {
    position: relative;
    width: 500px;
    max-width: 90vw;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: 0 20px 60px rgba(0,0,0,0.4);
    overflow: hidden;
    transform: translateY(-10px) scale(0.98);
    transition: transform 0.2s;
}

.cmd-palette.open .cmd-box {
    transform: translateY(0) scale(1);
}

.cmd-input {
    width: 100%;
    padding: 16px 20px;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: var(--font-main);
    outline: none;
}

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

.cmd-results {
    max-height: 300px;
    overflow-y: auto;
}

.cmd-item {
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    transition: background 0.15s;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.cmd-item:hover, .cmd-item.active {
    background: var(--accent-glow);
    color: var(--text-primary);
}

.cmd-item-icon {
    width: 20px;
    text-align: center;
    flex-shrink: 0;
}

.cmd-item-label { flex: 1; }

.cmd-item-shortcut {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

/* ===== 3D Tilt on Project Cards ===== */
.project-card {
    transform-style: preserve-3d;
    perspective: 800px;
}

/* ===== Magnetic Cursor Buttons ===== */

/* ===== Code Rain Background ===== */
.code-rain-canvas {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.5s;
}

.code-rain-canvas.active {
    opacity: 0.12;
}

[data-theme="light"] .code-rain-canvas.active {
    opacity: 0.06;
}

body.game-mode .code-rain-canvas { display: none; }

/* ===== Typing Challenge ===== */
.typing-challenge {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s;
}

.typing-challenge.open {
    opacity: 1;
    pointer-events: all;
}

.tc-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
}

.tc-box {
    position: relative;
    width: 600px;
    max-width: 92vw;
    background: var(--bg-primary);
    border: 2px solid var(--accent);
    border-radius: 16px;
    padding: 28px;
    box-shadow: 0 0 40px var(--accent-glow);
    transform: translateY(10px) scale(0.97);
    transition: transform 0.25s;
}

.typing-challenge.open .tc-box {
    transform: translateY(0) scale(1);
}

.tc-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.tc-close {
    background: rgba(255,255,255,0.06);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    width: 32px;
    height: 32px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.tc-close:hover { background: rgba(239,68,68,0.2); color: #ef4444; }

.tc-snippet {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.8;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: 10px;
    margin-bottom: 16px;
    color: var(--text-muted);
    letter-spacing: 0.3px;
    min-height: 60px;
    user-select: none;
}

.tc-snippet .tc-correct { color: var(--accent-light); }
.tc-snippet .tc-wrong { color: #ef4444; background: rgba(239,68,68,0.15); border-radius: 2px; }
.tc-snippet .tc-cursor { border-left: 2px solid var(--accent); animation: blink 1s infinite; }
.tc-snippet .tc-remaining { color: var(--text-muted); }

.tc-input {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.2s;
}

.tc-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }

.tc-stats {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-top: 16px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.tc-stats span { padding: 6px 14px; background: var(--bg-card); border-radius: 8px; }

.tc-result {
    text-align: center;
    margin-top: 16px;
    font-size: 1rem;
    font-weight: 700;
    min-height: 24px;
}

/* ===== Orbit View ===== */
.orbit-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 500px;
}

#orbitCanvas {
    max-width: 100%;
    height: auto;
}

/* ===== Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .scroll-indicator,
    .image-border,
    .typewriter-cursor,
    .loader-spinner {
        animation: none !important;
    }

    html {
        scroll-behavior: auto;
    }
}