:root {
    --bg-primary: #FAFBFC;
    --bg-secondary: #FFFFFF;
    --bg-tertiary: #F0F4F8;
    --bg-surface: #FFFFFF;
    --bg-code: #1E293B;
    --text-primary: #0F172A;
    --text-secondary: #475569;
    --text-tertiary: #94A3B8;
    --text-inverse: #FFFFFF;
    --text-accent: #0EA5E9;
    --accent-devops: #F97316;
    --accent-cloud: #0EA5E9;
    --accent-infra: #10B981;
    --accent-iot: #14B8A6;
    --accent-php: #6366F1;
    --accent-embedded: #F59E0B;
    --border: #E2E8F0;
    --shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
    --shadow-lg: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;
}

[data-theme="dark"] {
    --bg-primary: #0F172A;
    --bg-secondary: #1E293B;
    --bg-tertiary: #334155;
    --bg-surface: #1E293B;
    --bg-code: #020617;
    --text-primary: #F8FAFC;
    --text-secondary: #CBD5E1;
    --text-tertiary: #64748B;
    --text-inverse: #0F172A;
    --text-accent: #38BDF8;
    --accent-devops: #FB923C;
    --accent-cloud: #38BDF8;
    --accent-infra: #34D399;
    --accent-iot: #2DD4BF;
    --accent-php: #818CF8;
    --accent-embedded: #FBBF24;
    --border: #334155;
    --shadow: 0 4px 6px -1px rgba(0,0,0,0.5), 0 2px 4px -1px rgba(0,0,0,0.3);
    --shadow-lg: 0 20px 25px -5px rgba(0,0,0,0.5), 0 10px 10px -5px rgba(0,0,0,0.3);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-primary);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.75;
    transition: background 0.3s ease, color 0.3s ease;
    overflow-x: hidden;
}

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--text-tertiary); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 64px;
    background: rgba(250,251,252,0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    transition: all 0.3s ease;
}

[data-theme="dark"] .nav { background: rgba(15,23,42,0.8); }

.nav-logo {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-logo::before { content: "~/"; color: var(--accent-cloud); }

.nav-links { display: flex; align-items: center; gap: 32px; }

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: color 0.2s ease;
    position: relative;
}

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

.nav-link::after {
    content: "";
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-cloud);
    transition: width 0.3s ease;
}

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

.nav-controls { display: flex; align-items: center; gap: 16px; }

.lang-toggle, .theme-toggle {
    display: flex;
    align-items: center;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    padding: 4px;
    border: 1px solid var(--border);
    cursor: pointer;
}

.lang-btn, .theme-btn {
    padding: 6px 14px;
    border-radius: var(--radius-full);
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: var(--font-primary);
}

.lang-btn.active, .theme-btn.active { background: var(--accent-cloud); color: white; }

.theme-btn svg { width: 16px; height: 16px; }

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: 8px;
}

/* Hero */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 32px 80px;
    position: relative;
    overflow: hidden;
}

.hero-bg { position: absolute; inset: 0; overflow: hidden; }

.hero-grid {
    position: absolute;
    inset: 0;
    background-image: linear-gradient(rgba(148,163,184,0.1) 1px, transparent 1px), linear-gradient(90deg, rgba(148,163,184,0.1) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 40%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 40%, transparent 70%);
}

.hero-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: float 8s ease-in-out infinite;
}

.hero-orb-1 { width: 400px; height: 400px; background: var(--accent-devops); top: 10%; left: 10%; animation-delay: 0s; }
.hero-orb-2 { width: 300px; height: 300px; background: var(--accent-cloud); bottom: 20%; right: 15%; animation-delay: -3s; }
.hero-orb-3 { width: 250px; height: 250px; background: var(--accent-iot); top: 50%; left: 60%; animation-delay: -5s; }

@keyframes float {
    0%,100% { transform: translate(0,0) scale(1); }
    33% { transform: translate(30px,-30px) scale(1.05); }
    66% { transform: translate(-20px,20px) scale(0.95); }
}

.hero-content { max-width: 900px; width: 100%; position: relative; z-index: 1; }

/* Terminal */
.terminal {
    background: var(--bg-code);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    margin-bottom: 48px;
    border: 1px solid var(--border);
}

.terminal-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: rgba(255,255,255,0.05);
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.terminal-btn { width: 12px; height: 12px; border-radius: 50%; }
.terminal-btn.red { background: #FF5F56; }
.terminal-btn.yellow { background: #FFBD2E; }
.terminal-btn.green { background: #27C93F; }

.terminal-title {
    margin-left: 8px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: rgba(255,255,255,0.5);
}

.terminal-body {
    padding: 20px 24px;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.8;
    color: #E2E8F0;
    min-height: 180px;
}

.terminal-line {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 4px;
    opacity: 0;
    animation: fadeIn 0.3s ease forwards;
}

.terminal-prompt { color: var(--accent-infra); white-space: nowrap; }
.terminal-cmd { color: #E2E8F0; }
.terminal-output { color: #94A3B8; padding-left: 0; margin-bottom: 12px; }
.terminal-output.success { color: var(--accent-infra); }
.terminal-output.info { color: var(--accent-cloud); }
.terminal-output.highlight { color: var(--accent-devops); font-weight: 600; }

.cursor {
    display: inline-block;
    width: 8px;
    height: 18px;
    background: var(--accent-cloud);
    animation: blink 1s step-end infinite;
    vertical-align: middle;
    margin-left: 2px;
}

@keyframes blink { 50% { opacity: 0; } }
@keyframes fadeIn { to { opacity: 1; } }

.hero-name {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title {
    font-size: clamp(1rem, 2.5vw, 1.35rem);
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 32px;
}

.hero-stats { display: flex; gap: 32px; margin-bottom: 40px; flex-wrap: wrap; }

.stat { display: flex; flex-direction: column; }
.stat-value { font-family: var(--font-mono); font-size: 1.75rem; font-weight: 700; color: var(--accent-cloud); }
.stat-label { font-size: 0.8rem; color: var(--text-tertiary); text-transform: uppercase; letter-spacing: 0.05em; font-weight: 500; }

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
    font-family: var(--font-primary);
}

.btn-primary {
    background: var(--accent-cloud);
    color: white;
    box-shadow: 0 4px 14px rgba(14,165,233,0.4);
}

.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(14,165,233,0.5); }

.btn-secondary {
    background: var(--bg-surface);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

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

.scroll-indicator {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-tertiary);
    font-size: 0.75rem;
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%,100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

/* Sections */
.section { padding: 100px 32px; max-width: 1200px; margin: 0 auto; }
.section-header { margin-bottom: 64px; }
.section-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent-cloud);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
    margin-bottom: 12px;
}
.section-title { font-size: clamp(1.75rem, 4vw, 2.5rem); font-weight: 700; color: var(--text-primary); line-height: 1.2; }
.section-desc { font-size: 1.1rem; color: var(--text-secondary); margin-top: 16px; max-width: 600px; }

/* About */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.about-text { font-size: 1.05rem; color: var(--text-secondary); line-height: 1.9; }
.about-text p { margin-bottom: 20px; }
.about-visual { position: relative; display: flex; justify-content: center; align-items: center; }

.cube-container { width: 280px; height: 280px; position: relative; perspective: 800px; }
.cube { width: 100%; height: 100%; position: relative; transform-style: preserve-3d; animation: rotateCube 15s linear infinite; }

@keyframes rotateCube {
    0% { transform: rotateX(-15deg) rotateY(0deg); }
    100% { transform: rotateX(-15deg) rotateY(360deg); }
}

.cube-face {
    position: absolute;
    width: 200px;
    height: 200px;
    left: 40px;
    top: 40px;
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    backface-visibility: visible;
    border: 2px solid var(--border);
    background: var(--bg-surface);
    box-shadow: var(--shadow);
}

.cube-face svg { width: 40px; height: 40px; }
.cube-face.front { transform: translateZ(100px); border-color: var(--accent-iot); color: var(--accent-iot); }
.cube-face.back { transform: rotateY(180deg) translateZ(100px); border-color: var(--accent-embedded); color: var(--accent-embedded); }
.cube-face.right { transform: rotateY(90deg) translateZ(100px); border-color: var(--accent-cloud); color: var(--accent-cloud); }
.cube-face.left { transform: rotateY(-90deg) translateZ(100px); border-color: var(--accent-devops); color: var(--accent-devops); }
.cube-face.top { transform: rotateX(90deg) translateZ(100px); border-color: var(--accent-infra); color: var(--accent-infra); }
.cube-face.bottom { transform: rotateX(-90deg) translateZ(100px); border-color: var(--accent-php); color: var(--accent-php); }

/* Timeline - Alternating */
.timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.timeline::before {
    content: "";
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--accent-cloud), var(--accent-devops));
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    width: 50%;
    padding-bottom: 48px;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s ease;
}

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

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

.timeline-item:nth-child(odd) {
    left: 0;
    padding-right: 40px;
}

.timeline-item:nth-child(even) {
    left: 50%;
    padding-left: 40px;
}

.timeline-dot {
    position: absolute;
    top: 4px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--bg-primary);
    border: 3px solid var(--accent-cloud);
    z-index: 1;
}

.timeline-item:nth-child(odd) .timeline-dot {
    right: -9px;
}

.timeline-item:nth-child(even) .timeline-dot {
    left: -9px;
}

.timeline-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.timeline-card:hover { transform: translateX(4px); box-shadow: var(--shadow-lg); }

.timeline-item:nth-child(even) .timeline-card:hover { transform: translateX(-4px); }

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

.timeline-company { font-size: 1.1rem; font-weight: 700; color: var(--text-primary); }

.timeline-period {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--accent-cloud);
    background: rgba(14,165,233,0.1);
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-weight: 600;
}

.timeline-role { font-size: 0.95rem; color: var(--text-secondary); font-weight: 500; margin-bottom: 16px; }

.timeline-highlights { list-style: none; }

.timeline-highlights li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 8px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.timeline-highlights li::before { content: "▸"; position: absolute; left: 0; color: var(--accent-cloud); font-weight: 700; }

/* Skills */
.skills-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 24px; }

.skill-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.skill-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

.skill-header { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }

.skill-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.skill-icon svg { width: 22px; height: 22px; }

.skill-title { font-size: 1rem; font-weight: 700; color: var(--text-primary); }

.skill-items { display: flex; flex-direction: column; gap: 16px; }

.skill-item { display: flex; flex-direction: column; gap: 6px; }

.skill-info { display: flex; justify-content: space-between; align-items: center; }

.skill-name { font-size: 0.9rem; font-weight: 500; color: var(--text-primary); }

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

.skill-bar-bg { height: 8px; background: var(--bg-tertiary); border-radius: var(--radius-full); overflow: hidden; }

.skill-bar-fill {
    height: 100%;
    border-radius: var(--radius-full);
    width: 0;
    transition: width 1s ease-out;
}

/* Projects */
.projects-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(360px, 1fr)); gap: 28px; }

.project-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.project-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }

.project-header { padding: 28px 28px 0; }

.project-client {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 8px;
}

.project-title { font-size: 1.2rem; font-weight: 700; color: var(--text-primary); margin-bottom: 12px; line-height: 1.3; }

.project-desc { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.7; margin-bottom: 20px; }

.project-tech { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }

.tech-tag {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

.project-metrics {
    display: flex;
    gap: 16px;
    padding: 20px 28px;
    background: var(--bg-tertiary);
    border-top: 1px solid var(--border);
    margin-top: auto;
}

.project-metric { display: flex; flex-direction: column; }

.project-metric-value { font-family: var(--font-mono); font-size: 1.1rem; font-weight: 700; color: var(--accent-infra); }

.project-metric-label { font-size: 0.7rem; color: var(--text-tertiary); text-transform: uppercase; letter-spacing: 0.05em; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }

.contact-info { display: flex; flex-direction: column; gap: 24px; }

.contact-item { display: flex; align-items: center; gap: 16px; }

.contact-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-cloud);
    flex-shrink: 0;
}

.contact-icon svg { width: 22px; height: 22px; }

.contact-detail h4 {
    font-size: 0.85rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 4px;
}

.contact-detail p, .contact-detail a {
    font-size: 1rem;
    color: var(--text-primary);
    font-weight: 500;
    text-decoration: none;
    transition: color 0.2s ease;
}

.contact-detail a:hover { color: var(--accent-cloud); }

.contact-socials { display: flex; gap: 12px; margin-top: 8px; }

.social-link {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all 0.2s ease;
    border: 1px solid var(--border);
}

.social-link:hover { background: var(--accent-cloud); color: white; transform: translateY(-2px); }

.social-link svg { width: 20px; height: 20px; }

.contact-form {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow);
}

.form-group { margin-bottom: 20px; }

.form-label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--text-primary); margin-bottom: 8px; }

.form-input, .form-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 0.95rem;
    transition: all 0.2s ease;
}

.form-input:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--accent-cloud);
    box-shadow: 0 0 0 3px rgba(14,165,233,0.15);
}

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

.form-submit {
    width: 100%;
    padding: 14px;
    background: var(--accent-cloud);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: var(--font-primary);
}

.form-submit:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(14,165,233,0.4); }

/* Contact Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(4px);
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}
.modal-overlay.open { opacity: 1; visibility: visible; }
.contact-modal {
    position: fixed;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    width: 90%; max-width: 380px;
    text-align: center;
    z-index: 2001;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, transform 0.3s, visibility 0.3s;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.contact-modal.open { opacity: 1; visibility: visible; transform: translate(-50%, -50%) scale(1); }
.contact-modal-icon {
    width: 64px; height: 64px;
    border-radius: 50%;
    background: rgba(34,197,94,0.1);
    border: 2px solid rgba(34,197,94,0.3);
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 20px;
    color: #22c55e;
}
.contact-modal h3 { font-size: 1.4rem; margin-bottom: 10px; color: var(--text-primary); }
.contact-modal p { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 24px; line-height: 1.6; }
.contact-modal-close {
    padding: 10px 28px;
    border-radius: var(--radius-sm);
    border: none;
    background: var(--accent-cloud);
    color: white;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}
.contact-modal-close:hover { transform: translateY(-1px); box-shadow: 0 4px 15px rgba(14,165,233,0.35); }

/* Footer */
.footer { border-top: 1px solid var(--border); padding: 40px 32px; text-align: center; }
.footer-content { max-width: 1200px; margin: 0 auto; }
.footer-text { font-size: 0.85rem; color: var(--text-tertiary); }
.footer-heart { color: var(--accent-devops); }

/* Mobile Drawer */
.mobile-drawer {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--bg-surface);
    border-left: 1px solid var(--border);
    z-index: 1001;
    padding: 80px 32px 32px;
    transition: right 0.3s ease;
    box-shadow: var(--shadow-lg);
}

.mobile-drawer.open { right: 0; }

.mobile-drawer-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.mobile-drawer-overlay.open { opacity: 1; visibility: visible; }

.mobile-nav-link {
    display: block;
    padding: 16px 0;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 600;
    border-bottom: 1px solid var(--border);
    transition: color 0.2s ease;
}

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

/* Utilities */
.hidden { display: none !important; }

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

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

/* 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-behavior: auto !important;
    }
    .hero-orb { animation: none; }
    .cube { animation: none; }
    .scroll-indicator { animation: none; }
    .cursor { animation: none; }
}

/* Responsive */
@media (max-width: 1024px) {
    .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 48px; }
    .cube-container { width: 220px; height: 220px; }
    .cube-face { width: 160px; height: 160px; left: 30px; top: 30px; }
    .cube-face.front { transform: translateZ(80px); }
    .cube-face.back { transform: rotateY(180deg) translateZ(80px); }
    .cube-face.right { transform: rotateY(90deg) translateZ(80px); }
    .cube-face.left { transform: rotateY(-90deg) translateZ(80px); }
    .cube-face.top { transform: rotateX(90deg) translateZ(80px); }
    .cube-face.bottom { transform: rotateX(-90deg) translateZ(80px); }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .mobile-menu-btn { display: block; }
    .hero { padding: 100px 20px 60px; }
    .section { padding: 60px 20px; }
    .hero-stats { gap: 20px; }
    .stat-value { font-size: 1.4rem; }
    .projects-grid { grid-template-columns: 1fr; }
    .skills-grid { grid-template-columns: 1fr; }
    .hero-ctas { flex-direction: column; }
    .btn { width: 100%; justify-content: center; }

    /* Mobile timeline: single column */
    .timeline::before { left: 8px; transform: none; }
    .timeline-item { width: 100%; left: 0 !important; padding-left: 28px !important; padding-right: 0 !important; }
    .timeline-dot { left: -26px !important; right: auto !important; width: 14px; height: 14px; }
    .timeline-card:hover { transform: translateY(-2px) !important; }
}