:root {
    --volcanic: #FF4500;
    --forest: #228B22;
    --obsidian: #1C1C1C;
    --amber: #FFA500;
    --violet: #8A2BE2;
    --charcoal: #36454F;
    --ivory: #FFFFF0;
    --dark-bg: #0F0F0F;
    --darker-bg: #0A0A0A;
    --card-bg: #1A1A1A;
    --border: #2A2A2A;
    --text-primary: #FFFFF0;
    --text-secondary: #B0B0B0;
    --text-muted: #808080;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 96px; }
body {
    font-family: 'Inter', sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.skip-link {
    position: absolute;
    top: -100px;
    left: 24px;
    padding: 8px 16px;
    background: var(--volcanic);
    color: white;
    border-radius: 8px;
    z-index: 1000;
}
.skip-link:focus { top: 16px; }

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

header {
    background: var(--darker-bg);
    border-bottom: 1px solid var(--border);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}
.logo img { width: 40px; height: 40px; }
.logo-text {
    font-size: 24px;
    font-weight: 800;
    color: var(--amber);
}

nav ul {
    display: flex;
    list-style: none;
    gap: 32px;
}
nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}
nav a:hover { color: var(--volcanic); }

.site-toggle {
    display: flex;
    background: var(--darker-bg);
    border-radius: 8px;
    padding: 2px;
    border: 1px solid var(--border);
    margin-right: 24px;
}
.site-toggle-btn {
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: 6px;
    text-decoration: none;
    transition: all 0.2s;
}
.site-toggle-btn:hover { color: var(--text-primary); }
.site-toggle-btn.active {
    background: var(--amber);
    color: var(--obsidian);
}

.hero {
    padding: 120px 0;
    background: linear-gradient(135deg, var(--darker-bg) 0%, var(--obsidian) 100%);
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 20%, rgba(255, 69, 0, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(34, 139, 34, 0.1) 0%, transparent 50%);
    pointer-events: none;
}
.hero-content {
    text-align: center;
    position: relative;
    z-index: 2;
}
.hero h1 {
    font-size: 64px;
    font-weight: 800;
    margin-bottom: 24px;
    background: linear-gradient(135deg, var(--volcanic) 0%, var(--amber) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero .subtitle {
    font-size: 24px;
    color: var(--text-secondary);
    margin: 0 auto 48px;
    max-width: 760px;
}

.cta-buttons {
    display: flex;
    gap: 24px;
    justify-content: center;
    margin-bottom: 80px;
}
.btn {
    padding: 16px 32px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 16px;
}
.btn-primary {
    background: linear-gradient(135deg, var(--volcanic) 0%, var(--amber) 100%);
    color: white;
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(255, 69, 0, 0.4);
}
.btn-secondary {
    background: transparent;
    color: var(--forest);
    border: 2px solid var(--forest);
}
.btn-secondary:hover {
    background: var(--forest);
    color: white;
}

.hero-code,
.example-code {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 32px;
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}
.code-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 24px;
}
.code-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}
.code-dot:nth-child(1) { background: #FF5F57; }
.code-dot:nth-child(2) { background: #FFBD2E; }
.code-dot:nth-child(3) { background: #28CA42; }
.code-title {
    margin-left: 16px;
    color: var(--text-muted);
    font-size: 14px;
}
.code-block {
    font-family: 'JetBrains Mono', monospace;
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-primary);
    white-space: pre-wrap;
}
.keyword { color: var(--volcanic); }
.operator { color: var(--forest); }
.function { color: var(--amber); }
.string { color: var(--violet); }
.comment { color: var(--text-muted); }
.identifier { color: var(--text-primary); }

.features {
    padding: 120px 0;
    background: var(--obsidian);
}
.examples,
.docs-section,
.playground-strip {
    padding: 120px 0;
    background: var(--dark-bg);
}
.section-header {
    text-align: center;
    margin-bottom: 80px;
}
.section-header h2 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}
.section-header p {
    font-size: 20px;
    color: var(--text-secondary);
    max-width: 760px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}
.feature-card,
.doc-card,
.examples-section,
.input-section,
.output-section {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 32px;
}
.feature-card {
    transition: all 0.3s ease;
}
.feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--volcanic);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}
.feature-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--volcanic) 0%, var(--amber) 100%);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    font-size: 18px;
    font-weight: 800;
}
.feature-card h3,
.doc-card h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}
.feature-card p,
.doc-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
}

.examples-grid {
    display: grid;
    gap: 48px;
}
.example {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}
.example:nth-child(even) { direction: rtl; }
.example:nth-child(even) > * { direction: ltr; }
.example-content h3 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}
.example-content p {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}
.example-features {
    list-style: none;
}
.example-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    color: var(--text-secondary);
}
.example-features li::before {
    content: '→';
    color: var(--forest);
    font-weight: bold;
}
.docs-grid {
    display: grid;
    gap: 32px;
}
.doc-card {
    overflow-x: auto;
}
pre {
    background: var(--darker-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
    margin: 16px 0 24px;
    overflow-x: auto;
}
code {
    font-family: 'JetBrains Mono', monospace;
    color: var(--amber);
    font-size: 14px;
}
pre code {
    color: var(--text-primary);
    line-height: 1.7;
}
table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0 24px;
    overflow: hidden;
    border-radius: 8px;
}
th,
td {
    text-align: left;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    color: var(--text-secondary);
    vertical-align: top;
}
th {
    background: var(--obsidian);
    color: var(--text-primary);
    font-weight: 700;
}

.text-center { text-align: center; }

footer {
    background: var(--darker-bg);
    border-top: 1px solid var(--border);
    padding: 48px 0;
    text-align: center;
}
.footer-content { color: var(--text-muted); }
.footer-links {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}
.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
}
.footer-links a:hover { color: var(--volcanic); }

@media (max-width: 980px) {
    .header-content { flex-wrap: wrap; }
    nav ul { gap: 18px; flex-wrap: wrap; }
    .site-toggle { margin-right: 0; }
}

@media (max-width: 768px) {
    .hero { padding: 80px 0; }
    .hero h1 { font-size: 48px; }
    .hero .subtitle { font-size: 20px; }
    .cta-buttons { flex-direction: column; align-items: center; }
    .section-header { margin-bottom: 48px; }
    .section-header h2 { font-size: 36px; }
    .features,
    .examples,
    .docs-section,
    .playground-strip { padding: 72px 0; }
    .features-grid { grid-template-columns: 1fr; }
    .example { grid-template-columns: 1fr; }
    .example { text-align: center; }
    .example:nth-child(even) { direction: ltr; }
    nav ul { display: none; }
    .hero-code,
    .example-code,
    .feature-card,
    .doc-card { padding: 24px; }
    .code-block,
    pre code { font-size: 13px; }
}