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

:root {
    --bg-primary: #0a0a0b;
    --bg-secondary: #111113;
    --bg-card: #18181b;
    --text-primary: #fafafa;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    --accent: #6d28d9;
    --accent-light: #8b5cf6;
    --accent-glow: rgba(139, 92, 246, 0.15);
    --border: #27272a;
    --border-hover: #3f3f46;
    --gradient-1: linear-gradient(135deg, #6d28d9 0%, #2563eb 100%);
    --gradient-2: linear-gradient(135deg, #ec4899 0%, #8b5cf6 100%);
    --radius: 12px;
    --radius-lg: 16px;
    --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --focus-ring: 0 0 0 2px var(--bg-primary), 0 0 0 4px var(--accent-light);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.skip-link {
    position: absolute;
    top: -100%;
    left: 1rem;
    padding: 0.5rem 1rem;
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--accent-light);
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 600;
    z-index: 100;
    text-decoration: none;
    transition: top 200ms ease;
}

.skip-link:focus {
    top: 1rem;
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    html {
        scroll-behavior: auto;
    }
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 100;
}

.bg-gradient {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
}

.bg-gradient::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(ellipse at 20% 50%, rgba(109, 40, 217, 0.08) 0%, transparent 50%),
                radial-gradient(ellipse at 80% 20%, rgba(37, 99, 235, 0.06) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 80%, rgba(236, 72, 153, 0.05) 0%, transparent 50%);
    animation: gradientShift 15s ease-in-out infinite alternate;
}

@keyframes gradientShift {
    0% { transform: translate(0, 0) rotate(0deg); }
    100% { transform: translate(-5%, -5%) rotate(3deg); }
}

nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    padding: 1rem 2rem;
    padding-left: max(2rem, env(safe-area-inset-left));
    padding-right: max(2rem, env(safe-area-inset-right));
    backdrop-filter: blur(12px);
    background: rgba(10, 10, 11, 0.8);
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}

nav.scrolled {
    padding: 0.75rem 2rem;
    padding-left: max(0.75rem, env(safe-area-inset-left));
    padding-right: max(0.75rem, env(safe-area-inset-right));
}

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

.nav-logo {
    font-size: 1.25rem;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    border-radius: 2px;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-1);
    transition: var(--transition);
    border-radius: 1px;
}

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

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

.nav-links a:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 2rem 4rem;
    position: relative;
}

.hero-content {
    max-width: 800px;
    text-align: center;
    animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-badge {
    display: inline-flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
    padding: 0.6rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.8rem;
    font-family: 'JetBrains Mono', monospace;
    margin-bottom: 2rem;
    position: relative;
}

.hero-badge::before {
    content: '❯';
    color: var(--accent-light);
    margin-right: 0.25rem;
}

.hero-badge::after {
    content: '';
    display: inline-block;
    width: 7px;
    height: 0.9em;
    background: var(--accent-light);
    margin-left: 0.15rem;
    animation: blink 1s step-end infinite;
    vertical-align: text-bottom;
}

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

.prompt-line {
    display: inline-flex;
    align-items: center;
    gap: 0.15rem;
}

.prompt-user {
    color: #8b5cf6;
    font-weight: 600;
}

.prompt-at {
    color: var(--text-muted);
}

.prompt-host {
    color: #2563eb;
    font-weight: 500;
}

.prompt-path {
    color: var(--text-muted);
}

.prompt-cmd {
    color: var(--text-secondary);
}

/* .prompt-output {
    color: var(--accent-light);
    padding-left: 1.4rem;
    position: relative;
}

.prompt-output::before {
    content: '→';
    color: var(--text-muted);
    position: absolute;
    left: 0;
} */

.hero h1 {
    font-size: clamp(3rem, 8vw, 5.5rem);
    font-weight: 900;
    letter-spacing: -0.04em;
    line-height: 1;
    margin-bottom: 1.5rem;
}

.hero h1 .gradient-text {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 2.5rem;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.btn:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

.btn-primary {
    background: var(--gradient-1);
    color: white;
    box-shadow: 0 4px 20px rgba(109, 40, 217, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(109, 40, 217, 0.4);
}

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

.btn-secondary:hover {
    border-color: var(--border-hover);
    background: var(--bg-secondary);
}

.quote-section {
    padding: 6rem 2rem;
    position: relative;
}

.quote-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 3rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    position: relative;
    overflow: hidden;
}

.quote-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-2);
}

.quote-mark {
    font-size: 6rem;
    line-height: 1;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0.3;
    position: absolute;
    top: 1rem;
    left: 1.5rem;
    font-family: Georgia, serif;
}

.quote-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
    font-style: italic;
    position: relative;
    z-index: 1;
}

.quote-author {
    margin-top: 1.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent-light);
    font-style: normal;
}

.section {
    padding: 6rem 2rem;
}

.section-header {
    max-width: 1200px;
    margin: 0 auto 3rem;
}

.section-label {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent-light);
    margin-bottom: 0.75rem;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.1;
}

.stack-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.stack-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.stack-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--accent-glow) 0%, transparent 50%);
    opacity: 0;
    transition: var(--transition);
}

.stack-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
}

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

.stack-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-1);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
}

.stack-icon svg {
    width: 24px;
    height: 24px;
    stroke: white;
}

.stack-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    letter-spacing: -0.02em;
}

.stack-card > p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 1.25rem;
}

.stack-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    padding: 0.25rem 0.75rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
}

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

.interests-header {
    text-align: center;
    margin-bottom: 3rem;
}

.interests-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

@media (max-width: 1024px) {
    .interests-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.interest-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    transition: var(--transition);
}

.interest-item:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.interest-emoji {
    font-size: 2rem;
    display: block;
    margin-bottom: 1rem;
}

.interest-item h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}

.interest-item p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.6;
}

.social-section {
    padding: 4rem 2rem 6rem;
}

.social-container {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.social-link {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.social-link:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

.social-link:hover {
    border-color: var(--accent-light);
    color: var(--accent-light);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px var(--accent-glow);
}

.social-link svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
}

.contact-description {
    color: var(--text-secondary);
    margin-top: 1rem;
}

footer {
    padding: 2rem;
    border-top: 1px solid var(--border);
    text-align: center;
}

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

.highlight-ia {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

.stack-card:nth-child(1) { transition-delay: 0ms; }
.stack-card:nth-child(2) { transition-delay: 100ms; }
.stack-card:nth-child(3) { transition-delay: 200ms; }
.stack-card:nth-child(4) { transition-delay: 300ms; }

.interest-item:nth-child(1) { transition-delay: 0ms; }
.interest-item:nth-child(2) { transition-delay: 100ms; }
.interest-item:nth-child(3) { transition-delay: 200ms; }
.interest-item:nth-child(4) { transition-delay: 300ms; }
.interest-item:nth-child(5) { transition-delay: 400ms; }
.interest-item:nth-child(6) { transition-delay: 500ms; }

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: 0.5rem;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    border-radius: var(--radius);
}

.mobile-menu-btn:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

.mobile-menu-btn svg {
    width: 24px;
    height: 24px;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .nav-links.active {
        display: flex;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        gap: 1rem;
        background: rgba(10, 10, 11, 0.95);
        backdrop-filter: blur(12px);
        padding: 1rem 2rem;
        border-bottom: 1px solid var(--border);
        overscroll-behavior: contain;
    }

    .mobile-menu-btn {
        display: block;
    }

    .hero h1 {
        font-size: clamp(2.5rem, 10vw, 4rem);
    }

    .stack-grid,
    .interests-grid {
        grid-template-columns: 1fr;
    }

    .quote-container {
        padding: 2rem;
    }

    .social-links {
        flex-wrap: wrap;
    }
}

.cursor-glow {
    position: fixed;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    pointer-events: none;
    z-index: -1;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

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