@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
    --bg: #ffffff;
    --bg-soft: #f8fafc;
    --bg-elevated: #ffffff;
    --border: #e2e8f0;
    --border-strong: #cbd5e1;
    --text: #0f172a;
    --text-muted: #475569;
    --text-subtle: #64748b;
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
    --accent-soft: #dbeafe;
    --max-width: 1100px;
    --radius: 10px;
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.06);
    --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.10);
    --transition: 180ms ease;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0b1120;
        --bg-soft: #0f172a;
        --bg-elevated: #111827;
        --border: #1f2937;
        --border-strong: #374151;
        --text: #f1f5f9;
        --text-muted: #cbd5e1;
        --text-subtle: #94a3b8;
        --accent: #60a5fa;
        --accent-hover: #93c5fd;
        --accent-soft: #1e3a8a;
        --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
        --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
        --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.5);
    }
}

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

html {
    scroll-behavior: smooth;
    overflow-y: scroll;
    scrollbar-gutter: stable;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

a:hover {
    color: var(--accent-hover);
}

.mono {
    font-family: 'JetBrains Mono', 'SF Mono', Consolas, monospace;
}

/* ============================================================
   Container
   ============================================================ */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
}

/* ============================================================
   Navigation
   ============================================================ */
.nav {
    padding: 24px 0;
    border-bottom: 1px solid var(--border);
}

.nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 700;
    font-size: 18px;
    color: var(--text);
    letter-spacing: -0.02em;
}

.nav-logo:hover {
    color: var(--accent);
}

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

.nav-links a {
    color: var(--text-muted);
    font-weight: 500;
    font-size: 15px;
    padding: 8px 14px;
    border-radius: 6px;
    transition: all var(--transition);
}

.nav-links a:hover {
    color: var(--text);
    background: var(--bg-soft);
}

.nav-links a.active {
    color: var(--accent);
    background: var(--accent-soft);
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
    padding: 96px 0 80px;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 64px;
    align-items: center;
}

.hero-eyebrow {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    color: var(--accent);
    margin-bottom: 16px;
    letter-spacing: 0.02em;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 3.75rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
    color: var(--text);
}

.hero-title .accent {
    color: var(--accent);
}

.hero-title .cursor {
    display: inline-block;
    color: var(--accent);
    font-weight: 400;
    margin-left: 2px;
    animation: blink 1s steps(1) infinite;
}

@keyframes blink {
    50% { opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
    .hero-title .cursor {
        animation: none;
    }
}

.hero-bio {
    font-size: 17px;
    color: var(--text-muted);
    margin-bottom: 28px;
    max-width: 540px;
}

.hero-meta {
    display: flex;
    gap: 24px;
    margin-bottom: 32px;
    font-size: 14px;
    color: var(--text-subtle);
    flex-wrap: wrap;
}

.hero-meta span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.hero-meta i {
    color: var(--accent);
}

.hero-buttons {
    display: flex;
    gap: 12px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 11px 20px;
    border-radius: 8px;
    font-family: 'Inter', sans-serif;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    border: 1px solid transparent;
    text-decoration: none;
}

.btn-primary {
    background: var(--accent);
    color: white;
}

.btn-primary:hover {
    background: var(--accent-hover);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: transparent;
    color: var(--text);
    border-color: var(--border-strong);
}

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

.social-icons {
    display: flex;
    gap: 16px;
}

.social-icons a {
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    border: 1px solid var(--border);
    border-radius: 8px;
    transition: all var(--transition);
    font-size: 18px;
}

.social-icons a:hover {
    color: var(--accent);
    border-color: var(--accent);
    background: var(--accent-soft);
}

/* Hero visual (replaces stock illustration) */
.hero-visual {
    background: linear-gradient(135deg, var(--accent-soft) 0%, var(--bg-soft) 100%);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 28px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    color: var(--text-muted);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.hero-visual .code-line {
    margin-bottom: 4px;
    white-space: nowrap;
}

.hero-visual .comment {
    color: var(--text-subtle);
}

.hero-visual .keyword {
    color: var(--accent);
    font-weight: 500;
}

.hero-visual .string {
    color: #16a34a;
}

@media (prefers-color-scheme: dark) {
    .hero-visual .string {
        color: #4ade80;
    }
}

/* ============================================================
   Page header (work + contact)
   ============================================================ */
.page-header {
    padding: 80px 0 48px;
    text-align: left;
}

.page-header h1 {
    font-size: clamp(2.25rem, 4vw, 3rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--text);
    margin-bottom: 12px;
}

.page-header p {
    color: var(--text-muted);
    font-size: 17px;
    max-width: 600px;
}

/* ============================================================
   Project cards
   ============================================================ */
.projects {
    padding: 0 0 96px;
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.project-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
    position: relative;
    overflow: hidden;
}

.project-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: inherit;
}

.project-card .featured-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--accent);
    background: var(--accent-soft);
    padding: 3px 8px;
    border-radius: 4px;
    letter-spacing: 0.02em;
}

.project-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text);
    letter-spacing: -0.01em;
}

.project-card .project-tagline {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    color: var(--accent);
    margin-bottom: 14px;
}

.project-card p {
    color: var(--text-muted);
    font-size: 14.5px;
    line-height: 1.6;
    margin-bottom: 18px;
    flex-grow: 1;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 18px;
}

.tech-tags span {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11.5px;
    color: var(--text-muted);
    background: var(--bg-soft);
    border: 1px solid var(--border);
    padding: 3px 8px;
    border-radius: 4px;
}

.project-link {
    font-size: 13px;
    color: var(--accent);
    font-weight: 500;
    margin-top: auto;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.project-card:hover .project-link {
    color: var(--accent-hover);
    gap: 8px;
}

/* ============================================================
   Contact form
   ============================================================ */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
    padding-bottom: 96px;
}

.contact-info p {
    color: var(--text-muted);
    margin-bottom: 24px;
    font-size: 16px;
}

.contact-info .contact-list {
    list-style: none;
    margin-top: 32px;
}

.contact-info .contact-list li {
    margin-bottom: 14px;
    color: var(--text-muted);
    font-size: 15px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.contact-info .contact-list i {
    color: var(--accent);
    width: 18px;
}

form {
    display: flex;
    flex-direction: column;
    gap: 16px;
    background: var(--bg-soft);
    padding: 32px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
}

.form-control {
    width: 100%;
    padding: 11px 14px;
    font-family: 'Inter', sans-serif;
    font-size: 15px;
    color: var(--text);
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 7px;
    transition: border-color var(--transition);
    outline: none;
}

.form-control:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
    font-family: 'Inter', sans-serif;
}

/* ============================================================
   Footer
   ============================================================ */
.footer {
    margin-top: auto;
    padding: 32px 0;
    border-top: 1px solid var(--border);
    background: var(--bg-soft);
}

.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer p {
    color: var(--text-subtle);
    font-size: 13.5px;
}

.footer .social-icons a {
    width: 32px;
    height: 32px;
    font-size: 15px;
}

/* ============================================================
   404
   ============================================================ */
.not-found {
    flex-grow: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 80px 24px;
}

.not-found-inner {
    text-align: center;
    max-width: 480px;
}

.not-found h1 {
    font-size: 5rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 8px;
    font-family: 'JetBrains Mono', monospace;
}

.not-found p {
    color: var(--text-muted);
    margin-bottom: 24px;
    font-size: 17px;
}

/* ============================================================
   Legal page
   ============================================================ */
.legal-page {
    padding-top: 80px;
    padding-bottom: 96px;
    max-width: 720px;
}

.legal-page h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.legal-page h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-top: 32px;
    margin-bottom: 12px;
}

.legal-page p {
    color: var(--text-muted);
    margin-bottom: 16px;
    font-size: 15px;
}

/* ============================================================
   Mobile menu
   ============================================================ */
.menu-toggle {
    display: none;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 7px;
    width: 40px;
    height: 40px;
    cursor: pointer;
    color: var(--text);
    font-size: 18px;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 101;
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    height: 100vh;
    background: var(--bg);
    border-left: 1px solid var(--border);
    padding: 80px 24px 24px;
    transform: translateX(100%);
    transition: transform var(--transition);
    z-index: 100;
    box-shadow: var(--shadow-lg);
}

.mobile-menu.open {
    transform: translateX(0);
}

.mobile-menu ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.mobile-menu a {
    display: block;
    padding: 12px 16px;
    color: var(--text-muted);
    border-radius: 6px;
    font-weight: 500;
    transition: all var(--transition);
}

.mobile-menu a:hover,
.mobile-menu a.active {
    background: var(--bg-soft);
    color: var(--accent);
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 880px) {
    .hero {
        padding: 64px 0 48px;
    }

    .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-visual {
        display: none;
    }

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

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .nav-links {
        display: none;
    }

    .menu-toggle {
        display: inline-flex;
    }

    .mobile-menu {
        display: block;
    }

    .page-header {
        padding: 56px 0 32px;
    }

    .footer-inner {
        flex-direction: column;
        text-align: center;
    }
}

::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-soft);
}

::-webkit-scrollbar-thumb {
    background: var(--border-strong);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-subtle);
}