:root {
    --primary: #cc785c;
    --primary-active: #a9583e;
    --ink: #141413;
    --body-c: #3d3d3a;
    --muted: #6c6a64;
    --muted-soft: #8e8b82;
    --hairline: #e6dfd8;
    --canvas: #faf9f5;
    --surface-card: #efe9de;
    --surface-dark: #181715;
    --on-dark: #faf9f5;
    --on-dark-soft: #a09d96;
    --radius-md: 8px;
    --radius-lg: 12px;
}

* { box-sizing: border-box; }
body {
    margin: 0;
    background: var(--canvas);
    color: var(--body-c);
    font-family: 'Inter', -apple-system, sans-serif;
    font-size: 16px;
    line-height: 1.55;
}
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

h1, h2, h3, h4 {
    font-family: 'Source Serif 4', Georgia, serif;
    font-weight: 400;
    color: var(--ink);
    letter-spacing: -0.5px;
}

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

.top-header {
    background: var(--canvas);
    border-bottom: 1px solid var(--hairline);
    position: sticky;
    top: 0;
    z-index: 50;
}
.top-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}
.brand { font-family: 'Source Serif 4', serif; font-size: 20px; color: var(--ink); font-weight: 500; }
.brand span { color: var(--primary); }
.top-nav { display: flex; gap: 24px; }
.top-nav a { color: var(--muted); font-size: 14px; font-weight: 500; }
.top-nav a:hover { color: var(--ink); }
.nav-toggle { display: none; background: none; border: none; font-size: 22px; cursor: pointer; color: var(--ink); }

.page-shell { display: flex; max-width: 1200px; margin: 0 auto; padding: 0 24px; gap: 40px; }
.page-shell.with-sidebar .page-main { flex: 1; min-width: 0; padding: 40px 0; }
.page-shell:not(.with-sidebar) .page-main { flex: 1; padding: 40px 0; }

.side-nav {
    width: 220px;
    flex-shrink: 0;
    padding: 40px 0;
    border-right: 1px solid var(--hairline);
}
.side-nav-inner { position: sticky; top: 88px; }
.side-nav h3 { font-size: 12px; text-transform: uppercase; letter-spacing: 1px; color: var(--muted-soft); font-family: 'Inter', sans-serif; margin: 24px 0 12px; }
.side-nav h3:first-child { margin-top: 0; }
.side-nav ul { list-style: none; padding: 0; margin: 0; }
.side-nav li { margin-bottom: 8px; }
.side-nav a { color: var(--body-c); font-size: 14px; }
.side-nav a:hover { color: var(--primary); }

.hero-band { padding: 64px 0 48px; }
.hero-band .eyebrow { color: var(--primary); font-size: 13px; font-weight: 500; letter-spacing: 1.5px; text-transform: uppercase; }
.hero-band h1 { font-size: 42px; line-height: 1.15; margin: 16px 0 20px; max-width: 720px; }
.hero-band p.lead { color: var(--muted); font-size: 18px; max-width: 640px; }

.img-frame { border-radius: 16px; overflow: hidden; margin: 24px 0; border: 1px solid var(--hairline); }
.img-frame img { width: 100%; display: block; }

.section-title { font-size: 28px; margin-bottom: 24px; }

.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature-card {
    background: var(--surface-card);
    border-radius: var(--radius-lg);
    padding: 24px;
}
.feature-card .tag {
    display: inline-block;
    background: var(--canvas);
    color: var(--muted);
    font-size: 12px;
    padding: 3px 10px;
    border-radius: 9999px;
    margin-bottom: 12px;
}
.feature-card h3 { font-size: 18px; font-family: 'Inter', sans-serif; font-weight: 500; margin-bottom: 8px; }
.feature-card p { color: var(--muted); font-size: 14px; margin: 0; }
.feature-card a.card-link { display: block; color: inherit; }

.breadcrumb-bar { padding: 12px 0; border-bottom: 1px solid var(--hairline); background: var(--surface-card); }
.breadcrumb-bar ol { list-style: none; display: flex; gap: 8px; margin: 0; padding: 0 24px; max-width: 1200px; margin: 0 auto; font-size: 13px; flex-wrap: wrap; }
.breadcrumb-bar li:not(:last-child)::after { content: '/'; margin-left: 8px; color: var(--muted-soft); }
.breadcrumb-bar a { color: var(--muted); }
.breadcrumb-bar .current { color: var(--ink); }

.article-body h2 { font-size: 24px; margin-top: 36px; margin-bottom: 14px; }
.article-body p { color: var(--body-c); margin-bottom: 16px; }
.article-head h1 { font-size: 34px; margin-bottom: 8px; }
.article-meta { color: var(--muted-soft); font-size: 13px; margin-bottom: 28px; }

.article-layout { display: flex; gap: 40px; }
.article-main { flex: 1; min-width: 0; }
.toc-box {
    width: 240px;
    flex-shrink: 0;
    background: var(--surface-card);
    border-radius: var(--radius-lg);
    padding: 20px;
    align-self: flex-start;
    position: sticky;
    top: 88px;
}
.toc-box h4 { font-size: 13px; text-transform: uppercase; letter-spacing: 1px; font-family: 'Inter', sans-serif; color: var(--muted); margin: 0 0 12px; }
.toc-box ul { list-style: none; padding: 0; margin: 0; }
.toc-box li { margin-bottom: 8px; }
.toc-box a { font-size: 14px; color: var(--body-c); }
.toc-box a:hover { color: var(--primary); }

.related-section { margin-top: 48px; padding-top: 32px; border-top: 1px solid var(--hairline); }
.related-section h2 { font-size: 22px; margin-bottom: 20px; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.related-tile {
    display: block;
    background: var(--surface-card);
    border-radius: var(--radius-lg);
    padding: 18px;
    color: var(--ink);
}
.related-tile .tag { color: var(--primary); font-size: 11px; text-transform: uppercase; letter-spacing: 0.8px; font-family: 'Inter', sans-serif; }
.related-tile h3 { font-size: 15px; font-family: 'Inter', sans-serif; font-weight: 500; margin: 8px 0; }
.related-tile p { color: var(--muted); font-size: 13px; margin: 0; }

.faq-item { background: var(--surface-card); border-radius: var(--radius-md); padding: 16px 20px; margin-bottom: 12px; }
.faq-item summary { cursor: pointer; font-weight: 500; color: var(--ink); list-style: none; font-family: 'Inter', sans-serif; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::before { content: '+'; color: var(--primary); margin-right: 10px; font-weight: 700; }
.faq-item[open] summary::before { content: '−'; }
.faq-item p { color: var(--body-c); margin: 12px 0 0; }

.btn { display: inline-block; border: none; border-radius: var(--radius-md); padding: 12px 22px; font-size: 14px; font-weight: 500; cursor: pointer; font-family: 'Inter', sans-serif; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-active); color: #fff; }
.btn-outline { background: transparent; border: 1px solid var(--hairline); color: var(--ink); }

.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 14px; color: var(--body-c); margin-bottom: 6px; }
.form-group input, .form-group textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--hairline);
    border-radius: var(--radius-md);
    background: var(--canvas);
    color: var(--ink);
    font-family: 'Inter', sans-serif;
    font-size: 14px;
}
.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(204,120,92,0.15);
}
.form-status { margin-top: 14px; padding: 12px 16px; border-radius: var(--radius-md); background: rgba(93,184,114,0.15); color: #3d7a4d; display: none; }
.form-status.show { display: block; }

.site-footer { background: var(--surface-dark); color: var(--on-dark-soft); padding: 56px 0 24px; margin-top: 40px; font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 32px; }
.site-footer h3 { color: var(--on-dark); font-size: 18px; }
.site-footer h4 { color: var(--on-dark); font-size: 13px; text-transform: uppercase; letter-spacing: 0.8px; font-family: 'Inter', sans-serif; margin-bottom: 14px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 8px; }
.site-footer a { color: var(--on-dark-soft); }
.site-footer a:hover { color: var(--primary); }
.site-footer hr { border-color: #2a2825; margin: 28px 0 16px; }
.footer-disclaimer { font-size: 12px; max-width: 800px; }
.footer-copy { font-size: 12px; margin-top: 6px; }

.cookie-consent-card {
    position: fixed;
    bottom: 20px;
    right: 20px;
    max-width: 360px;
    background: var(--surface-dark);
    color: var(--on-dark);
    border-radius: var(--radius-lg);
    padding: 20px;
    display: none;
    z-index: 999;
    box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}
.cookie-consent-card.show { display: block; }
.cookie-consent-card p { font-size: 13px; color: var(--on-dark-soft); margin: 0 0 14px; }
.cookie-consent-card .btn { margin-right: 8px; padding: 8px 16px; font-size: 13px; }

@media (max-width: 900px) {
    .page-shell { flex-direction: column; }
    .side-nav { width: 100%; border-right: none; border-bottom: 1px solid var(--hairline); padding: 20px 0; }
    .feature-grid, .related-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .article-layout { flex-direction: column; }
    .toc-box { width: 100%; position: static; }
    .top-nav { display: none; position: absolute; top: 64px; left: 0; right: 0; background: var(--canvas); flex-direction: column; padding: 16px 24px; border-bottom: 1px solid var(--hairline); }
    .top-nav.open { display: flex; }
    .nav-toggle { display: block; }
    .hero-band h1 { font-size: 30px; }
}