* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

:root {
    --bg: #fafaf9;
    --bg-surface: #ffffff;
    --bg-elevated: #ffffff;
    --bg-hover: #f5f5f4;
    --border: #e7e5e4;
    --text: #292524;
    --text-strong: #1c1917;
    --text-muted: #78716c;
    --text-dim: #a8a29e;
    --accent: #c17856;
    --accent-hover: #a8603e;
    --accent-dark: #8b4c32;
}

/* Dark theme available via [data-theme="dark"] if we add a toggle later */
[data-theme="dark"] {
    --bg: #0a0a0a;
    --bg-surface: #141414;
    --bg-elevated: #1a1a1a;
    --bg-hover: #222222;
    --border: #2a2a2a;
    --text: #d4d4d4;
    --text-strong: #e5e5e5;
    --text-muted: #737373;
    --text-dim: #525252;
    --accent: #d4a27f;
    --accent-hover: #e8b898;
    --accent-dark: #b07a5e;
}

body {
    font-family: system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

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

.container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Nav */
.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 32px;
    border-bottom: 1px solid var(--border);
}

.nav-brand {
    flex: 1;
    font-weight: 700;
    font-size: 18px;
    color: var(--accent);
}

.nav-links {
    display: flex;
    gap: 28px;
}

.nav-links a {
    font-size: 14px;
    color: var(--text-muted);
    transition: color 0.15s;
}

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

.nav-cta { flex: 1; display: flex; justify-content: flex-end; gap: 8px; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 8px 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.15s;
    border: 1px solid transparent;
}

.btn-primary {
    background: var(--accent);
    color: #ffffff;
    border-color: var(--accent);
}

.btn-primary:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
    color: #ffffff;
}

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

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

.btn-lg { padding: 12px 28px; font-size: 16px; }

/* Hero */
.hero {
    text-align: center;
    padding: 100px 24px 80px;
    max-width: 720px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 48px;
    font-weight: 700;
    color: var(--text-strong);
    line-height: 1.15;
    margin-bottom: 20px;
}

.hero-sub {
    font-size: 20px;
    color: var(--text-muted);
    max-width: 540px;
    margin: 0 auto 32px;
    line-height: 1.5;
}

.hero-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
}

/* Sections */
.section {
    padding: 80px 24px;
    width: 100%;
}

.section-dark {
    background: #f0efee;
}

[data-theme="dark"] .section-dark {
    background: var(--bg-surface);
}

.section-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-strong);
    text-align: center;
    margin-bottom: 48px;
}

.section-cta {
    text-align: center;
    padding: 80px 24px;
}

.section-cta h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-strong);
    margin-bottom: 12px;
}

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

/* Steps */
.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    max-width: 960px;
    margin: 0 auto;
}

.step {
    text-align: center;
}

.step-num {
    display: inline-flex;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--accent);
    color: #ffffff;
    font-weight: 700;
    font-size: 16px;
    margin-bottom: 16px;
}

.step h3 {
    font-size: 18px;
    color: var(--text-strong);
    margin-bottom: 8px;
}

.step p {
    font-size: 14px;
    color: var(--text-muted);
}

/* Modes */
.modes {
    display: flex;
    justify-content: center;
    align-items: stretch;
    gap: 24px;
}

.mode-card {
    padding: 32px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    width: 500px;
}

.mode-featured {
    border-color: var(--accent);
}

.mode-card h3 {
    font-size: 20px;
    color: var(--text-strong);
    margin-bottom: 4px;
}

.mode-badge {
    font-size: 12px;
    color: var(--accent);
    display: block;
    margin-bottom: 12px;
}

.mode-card p {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.mode-card code {
    display: block;
    padding: 10px 14px;
    background: var(--bg-elevated);
    border-radius: 6px;
    font-size: 13px;
    color: var(--text);
    overflow-x: auto;
}

/* Use cases */
.use-cases {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    max-width: 720px;
    margin: 0 auto;
}

.use-case {
    padding: 24px;
    border: 1px solid var(--border);
    border-radius: 10px;
}

.use-case h3 {
    font-size: 16px;
    color: var(--text-strong);
    margin-bottom: 6px;
}

.use-case p {
    font-size: 14px;
    color: var(--text-muted);
}

/* Page headers */
.page-header {
    text-align: center;
    padding: 60px 24px 40px;
}

.page-header h1 {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-strong);
    margin-bottom: 8px;
}

.page-header p {
    font-size: 16px;
    color: var(--text-muted);
}

/* Pricing */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 960px;
    margin: 0 auto;
}

.pricing-card {
    padding: 32px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
}

.pricing-featured {
    border-color: var(--accent);
}

.pricing-card h3 {
    font-size: 20px;
    color: var(--text-strong);
    margin-bottom: 8px;
}

.pricing-amount {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-strong);
    margin-bottom: 4px;
}

.pricing-desc {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 24px;
}

.pricing-features {
    list-style: none;
    margin-bottom: 24px;
    flex: 1;
}

.pricing-features li {
    font-size: 14px;
    color: var(--text);
    padding: 6px 0;
    border-bottom: 1px solid var(--border);
}

.pricing-features li:last-child {
    border-bottom: none;
}

/* Docs */
.docs-layout {
    display: flex;
    gap: 48px;
}

.docs-nav {
    width: 200px;
    flex-shrink: 0;
    position: sticky;
    top: 24px;
    align-self: flex-start;
}

.docs-nav h4 {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-dim);
    margin-top: 20px;
    margin-bottom: 8px;
}

.docs-nav h4:first-child { margin-top: 0; }

.docs-link {
    display: block;
    font-size: 13px;
    color: var(--text-muted);
    padding: 4px 0;
    transition: color 0.15s;
}

.docs-link:hover, .docs-link.active {
    color: var(--text);
}

.docs-content {
    flex: 1;
    min-width: 0;
}

.docs-content article {
    margin-bottom: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid var(--border);
}

.docs-content article:last-child {
    border-bottom: none;
}

.docs-content h2 {
    font-size: 24px;
    color: var(--text-strong);
    margin-bottom: 16px;
}

.docs-content h3 {
    font-size: 16px;
    color: var(--text-strong);
    margin-top: 20px;
    margin-bottom: 8px;
}

.docs-content p {
    font-size: 14px;
    margin-bottom: 12px;
}

.docs-content pre {
    background: var(--bg-elevated);
    padding: 14px 18px;
    border-radius: 8px;
    overflow-x: auto;
    margin-bottom: 16px;
}

.docs-content code {
    font-size: 13px;
    color: var(--accent);
}

.docs-content pre code {
    color: var(--text);
}

.docs-content blockquote {
    border-left: 3px solid var(--accent-dark);
    padding: 8px 16px;
    margin-bottom: 8px;
    color: var(--text-muted);
    font-style: italic;
    font-size: 14px;
}

.docs-content ul {
    margin-bottom: 12px;
    padding-left: 20px;
}

.docs-content li {
    font-size: 14px;
    margin-bottom: 4px;
}

.docs-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 16px;
}

.docs-table th, .docs-table td {
    text-align: left;
    padding: 8px 12px;
    font-size: 13px;
    border-bottom: 1px solid var(--border);
}

.docs-table th {
    color: var(--text-muted);
    font-weight: 600;
}

/* Legal pages */
.legal {
    max-width: 720px;
}

.legal h1 {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-strong);
    margin-bottom: 4px;
}

.legal-updated {
    font-size: 13px;
    color: var(--text-dim);
    margin-bottom: 32px;
}

.legal h2 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-strong);
    margin-top: 32px;
    margin-bottom: 12px;
}

.legal h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
    margin-top: 20px;
    margin-bottom: 8px;
}

.legal p {
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 12px;
}

.legal ul {
    padding-left: 20px;
    margin-bottom: 12px;
}

.legal li {
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 4px;
}

.legal code {
    font-size: 13px;
    color: var(--accent);
}

/* Code snippets with copy button */
.code-snippet {
    background: #f0efee;
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
}

[data-theme="dark"] .code-snippet {
    background: var(--bg-hover);
}

.code-header {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    padding: 4px 8px;
    background: var(--accent);
    border-bottom: 1px solid var(--border);
}

.code-snippet code {
    display: block;
    padding: 12px 16px;
    font-family: monospace;
    font-size: 13px;
    color: var(--text);
    white-space: nowrap;
    overflow-x: auto;
}

.copy-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 4px;
    background: none;
    border: none;
    color: #fff;
    font-size: 11px;
    cursor: pointer;
    transition: color 0.15s, background 0.15s;
    border-radius: 4px;
}

.copy-btn:hover {
    background: rgba(255,255,255,0.15);
}

.copy-btn.copied {
    color: #fff;
}

/* Empty state */
.empty-state {
    text-align: center;
    color: var(--text-dim);
    font-size: 16px;
    padding: 60px 0;
}

/* Footer */
.footer {
    border-top: 1px solid var(--border);
    padding: 48px 32px 24px;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    max-width: 1080px;
    margin: 0 auto;
    margin-bottom: 32px;
}

.footer-brand {
    max-width: 240px;
}

.footer-logo {
    font-weight: 700;
    font-size: 16px;
    color: var(--accent);
    display: block;
    margin-bottom: 8px;
}

.footer-brand p {
    font-size: 13px;
    color: var(--text-dim);
}

.footer-links {
    display: flex;
    gap: 64px;
}

.footer-col h4 {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.footer-col a {
    display: block;
    font-size: 13px;
    color: var(--text-dim);
    padding: 3px 0;
    transition: color 0.15s;
}

.footer-col a:hover {
    color: var(--text);
}

.footer-bottom {
    text-align: center;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.footer-bottom p {
    font-size: 12px;
    color: var(--text-dim);
}

/* Subscribe form */
.section-subscribe {
    text-align: center;
    padding: 60px 24px;
    background: #f0efee;
}

[data-theme="dark"] .section-subscribe {
    background: var(--bg-surface);
}

.section-subscribe h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-strong);
    margin-bottom: 8px;
}

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

.subscribe-form {
    max-width: 480px;
    margin: 0 auto;
}

.subscribe-input-group {
    display: flex;
    gap: 8px;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}

.subscribe-input {
    flex: 1;
    min-width: 220px;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    background: var(--bg-surface);
    color: var(--text);
    outline: none;
    transition: border-color 0.15s;
}

.subscribe-input:focus {
    border-color: var(--accent);
}

.subscribe-hp {
    position: absolute;
    left: -9999px;
    opacity: 0;
    height: 0;
    width: 0;
}

.subscribe-msg {
    font-size: 14px;
    margin-top: 12px;
    min-height: 20px;
}

.subscribe-msg.success { color: #16a34a; }
.subscribe-msg.error { color: #dc2626; }

.subscribe-fine {
    font-size: 12px;
    color: var(--text-dim);
    margin-top: 8px;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 { font-size: 32px; }
    .hero-actions { flex-direction: column; align-items: center; }
    .steps { grid-template-columns: 1fr; }
    .modes { flex-direction: column; align-items: center; }
    .use-cases { grid-template-columns: 1fr; }
    .pricing-grid { grid-template-columns: 1fr; }
    .docs-layout { flex-direction: column; }
    .docs-nav { width: 100%; position: static; }
    .nav-links { display: none; }
    .footer-inner { flex-direction: column; gap: 32px; }
    .footer-links { flex-wrap: wrap; gap: 32px; }
}