:root {
  --bg: #f5f1e9;
  --panel: #ffffff;
  --panel-alt: #ebe5d9;
  --text: #172329;
  --muted: #627074;
  --line: rgba(23, 35, 41, 0.13);
  --primary: #a13d2d;
  --primary-strong: #762b22;
  --shadow: rgba(23, 35, 41, 0.1);
  --success: #0f8a59;
  --warning-bg: rgba(254, 240, 138, 0.22);
  --warning-border: #d4a11a;
  --info-bg: rgba(34, 93, 255, 0.08);
  --info-border: #2457fa;
  --radius: 22px;
}

body[data-theme='dark'] {
  --bg: #172329;
  --panel: #203039;
  --panel-alt: #263943;
  --text: #f3eee5;
  --muted: #b7c1c0;
  --line: rgba(196, 210, 231, 0.14);
  --primary: #e09a78;
  --shadow: rgba(6, 10, 18, 0.35);
  --success: #7fe4b5;
  --warning-bg: rgba(224, 191, 70, 0.12);
  --warning-border: #e0b746;
  --info-bg: rgba(122, 162, 255, 0.15);
  --info-border: #87a9ff;
}

* { box-sizing: border-box; }
body { overflow-anchor: none; }
html { scroll-behavior: auto; }
body {
  margin: 0; font-family: 'Inter', sans-serif; background: var(--bg); color: var(--text); line-height: 1.7;
  transition: background 0.25s ease, color 0.25s ease;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, textarea { font: inherit; }
button { cursor: pointer; }
.hidden { display: none !important; }
.app-hidden { display: none !important; }
.workspace-hidden { display: none !important; }
.container { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.section { padding: 52px 0; }
.section-hero { min-height: calc(100vh - 74px); padding: 78px 0 52px; display: grid; align-items: center; }
.section-darkened { background: var(--panel-alt); }
.section-heading { margin-bottom: 32px; }
.section-heading h2 {
  margin: 10px 0 0; font-size: clamp(2rem, 2vw + 1rem, 3rem); line-height: 1.12; letter-spacing: -0.04em;
}
.inline-row { display: flex; justify-content: space-between; align-items: end; gap: 16px; }
.eyebrow {
  display: inline-block; color: var(--primary); letter-spacing: 0.12em; text-transform: uppercase; font-weight: 700; font-size: 0.75rem;
}
.muted-text, .material-item p, .source-item p, .about-copy p, .faq-item p, .hero-copy p, .direction-card p, .category-card p, .mini-card p, .feature-card p { color: var(--muted); }

.site-header {
  position: sticky; top: 0; z-index: 100; isolation: isolate; backdrop-filter: blur(14px); background: rgba(245, 241, 233, 0.94); border-bottom: 1px solid var(--line);
}
body[data-theme='dark'] .site-header { background: rgba(23, 35, 41, 0.9); }
.nav-wrap { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-grid; grid-template-columns: 34px auto; grid-template-rows: 1fr auto; column-gap: 9px; align-items: center; font-family: Georgia, 'Times New Roman', serif; }
.brand-mark { grid-row: 1 / span 2; display: grid; place-items: center; width: 34px; height: 34px; border: 1px solid var(--primary); border-radius: 50%; color: var(--primary); font-size: 1.45rem; line-height: 1; }
.brand-name { font-size: 1.3rem; font-weight: 800; letter-spacing: 0.08em; line-height: 1; }
.brand-caption { color: var(--muted); font-family: Inter, sans-serif; font-size: 0.58rem; letter-spacing: 0.1em; text-transform: uppercase; }
.main-nav { display: flex; align-items: center; gap: 4px; padding: 4px; border: 1px solid var(--line); border-radius: 14px; background: rgba(255,255,255,0.36); }
.main-nav a { display: inline-flex; align-items: center; gap: 7px; padding: 9px 11px; border-radius: 10px; color: var(--muted); font-size: 0.82rem; font-weight: 700; transition: color 0.2s ease, background 0.2s ease; }
.main-nav a span { color: var(--primary); font-family: Georgia, serif; font-size: 1rem; }
.main-nav a:hover, .main-nav a.is-active { color: var(--text); background: var(--panel); box-shadow: 0 2px 8px var(--shadow); }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.theme-toggle, .menu-toggle { width: 42px; height: 42px; border-radius: 12px; border: 1px solid var(--line); background: var(--panel); color: var(--text); }
.menu-toggle { display: none; position: relative; z-index: 110; align-items: center; justify-content: center; }

.hero-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 64px; align-items: center; }
.hero-copy h1 { font-size: clamp(2.9rem, 4vw + 1rem, 5rem); line-height: 0.98; letter-spacing: -0.06em; margin: 18px 0 20px; }
.hero-copy p { font-size: 1.08rem; max-width: 620px; margin-bottom: 26px; }
.hero-actions { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; margin-bottom: 26px; }
.button { display: inline-flex; align-items: center; justify-content: center; border: 1px solid transparent; border-radius: 14px; padding: 0.95rem 1.4rem; font-weight: 700; transition: transform 0.2s ease, box-shadow 0.2s ease; }
.button:hover { transform: translateY(-2px); box-shadow: 0 12px 24px rgba(28, 75, 255, 0.15); }
.button-primary { background: var(--primary); color: #fffaf3; }
.button-secondary { background: transparent; border-color: var(--line); color: var(--text); }
.hero-points { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 14px; color: var(--muted); font-size: 0.95rem; }
.hero-points li { background: var(--panel); border: 1px solid var(--line); border-radius: 999px; padding: 9px 14px; }
.hero-visual { display: grid; gap: 18px; }
.feature-card, .direction-card, .category-card, .material-item, .mini-card, .source-item, .faq-item, .about-panel, .contact-form, .author-block { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; box-shadow: 0 14px 32px var(--shadow); }
.feature-card { padding: 28px; }
.chip { display: inline-flex; padding: 7px 12px; border-radius: 999px; background: var(--info-bg); color: var(--primary); font-weight: 700; font-size: 0.72rem; }
.feature-card h2 { margin: 18px 0 10px; font-size: clamp(1.5rem, 1vw + 1rem, 2.2rem); line-height: 1.2; letter-spacing: -0.04em; }
.visual-meta { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.visual-meta div { padding: 20px; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); }
.visual-meta strong { display: block; font-size: 1.5rem; margin-bottom: 4px; }
.visual-meta span { color: var(--muted); }

.author-block { padding: 28px; display: grid; grid-template-columns: 260px 1fr; gap: 24px; align-items: center; }
.author-photo-wrap { width: 100%; }
.author-photo { width: 100%; height: 300px; object-fit: cover; border-radius: 18px; }
.author-copy h2 { margin: 10px 0 12px; font-size: clamp(2rem, 2vw + 1rem, 2.8rem); letter-spacing: -0.05em; }
.author-copy p { color: var(--muted); margin: 0 0 12px; }
.author-links { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 18px; }
.author-links a { color: var(--primary); font-weight: 700; }

.direction-grid, .category-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.direction-card, .category-card { width: 100%; min-height: 190px; padding: 20px; text-align: left; transition: transform 0.2s ease, border-color 0.2s ease; }
.direction-card:hover, .category-card:hover, .material-item:hover, .source-item:hover, .mini-card:hover { transform: translateY(-2px); border-color: rgba(28, 75, 255, 0.35); }
.direction-icon, .category-icon { display: inline-flex; align-items: center; justify-content: center; font-size: 2rem; margin-bottom: 14px; }
.category-card-topline { display: flex; justify-content: flex-end; min-height: 24px; }
.category-count { color: var(--primary); font-size: 0.78rem; font-weight: 800; }
.category-detail-count { display: block; margin-top: 12px; color: var(--muted); font-size: 0.78rem; line-height: 1.45; }
.category-open { display: inline-block; margin-top: 12px; color: var(--primary); font-size: 0.9rem; font-weight: 800; }
.direction-card h3, .category-card h3, .material-item h3, .mini-card h3, .source-item h3, .faq-item h3 { margin: 0 0 10px; letter-spacing: -0.04em; }
.inline-link, .text-link { color: var(--primary); font-weight: 700; background: transparent; border: none; padding: 0; }
.stack-list { display: grid; gap: 16px; }
.material-item, .source-item, .faq-item, .mini-card { padding: 22px 24px; }
.material-meta { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-bottom: 14px; color: var(--muted); font-size: 0.76rem; }
.material-pill { display: inline-flex; align-items: center; justify-content: center; padding: 7px 10px; background: var(--info-bg); border: 1px solid var(--info-border); border-radius: 999px; color: var(--primary); font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; }
.article-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.category-intro-box { background: var(--panel-alt); border: 1px solid var(--line); border-radius: 18px; padding: 22px 24px; margin-bottom: 18px; }
.category-intro-box h3 { margin: 0 0 8px; }
.category-intro-box p { margin: 0; color: var(--muted); }
.category-tools { display: flex; align-items: center; gap: 16px; margin: 0 0 22px; }
.category-tools input { flex: 1; min-width: 0; padding: 14px 16px; border: 1px solid var(--line); border-radius: 14px; background: var(--panel); color: var(--text); }
.category-results-count { color: var(--muted); font-size: 0.86rem; white-space: nowrap; }
.category-empty { padding: 28px; border: 1px dashed var(--line); border-radius: 18px; color: var(--muted); text-align: center; }
.case-card-footer { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-top: 16px; color: var(--muted); font-size: 0.82rem; }
.search-box { position: relative; margin-bottom: 24px; }
.search-box input { width: 100%; padding: 18px 20px; border-radius: 16px; border: 1px solid var(--line); background: var(--panel); color: var(--text); font-size: 1rem; }
.search-results { position: absolute; left: 0; right: 0; top: calc(100% + 12px); display: none; background: var(--panel); border: 1px solid var(--line); border-radius: 16px; box-shadow: 0 18px 32px var(--shadow); overflow: hidden; z-index: 20; }
.search-results.visible { display: block; }
.search-item, .search-empty { display: block; width: 100%; text-align: left; padding: 16px 18px; border: none; border-bottom: 1px solid var(--line); background: transparent; color: var(--text); }
.search-item:last-child { border-bottom: none; }
.search-item strong { display: block; margin-bottom: 4px; }
.search-item span, .search-empty { color: var(--muted); }
.back-link { border: none; background: transparent; color: var(--muted); padding: 0 0 18px; font-size: 0.96rem; font-weight: 600; }
.article-shell { max-width: 860px; }
.article-reader { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 32px 28px; box-shadow: 0 16px 32px var(--shadow); }
.article-header { margin-bottom: 26px; }
.article-topline { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 18px; color: var(--muted); }
.article-header h1 { margin: 0 0 10px; font-size: clamp(2.2rem, 3vw, 4rem); line-height: 1.02; letter-spacing: -0.06em; }
.article-intro { color: var(--muted); font-size: 1.02rem; margin: 0; }
.article-content h2, .article-content h3 { margin-top: 1.8rem; margin-bottom: 0.7rem; letter-spacing: -0.04em; }
.article-content p, .article-content li { color: var(--text); }
.article-content ul, .article-content ol { padding-left: 1.4rem; }
.note { border-radius: 16px; padding: 18px 20px; margin: 20px 0; border-left: 4px solid; }
.note.info { background: var(--info-bg); border-color: var(--info-border); }
.note.warning { background: var(--warning-bg); border-color: var(--warning-border); }
.law-box { margin-top: 22px; border: 1px solid var(--line); border-radius: 16px; padding: 18px 20px; background: rgba(255,255,255,0.15); }

.about-layout, .contact-layout { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 28px; }
.about-copy h2, .contact-layout h2 { margin: 10px 0 16px; font-size: clamp(2rem, 2vw + 1rem, 3rem); line-height: 1.12; letter-spacing: -0.04em; }
.about-panel { padding: 26px; display: grid; gap: 18px; }
.about-panel div { padding: 18px; border-radius: 16px; background: var(--bg); border: 1px solid var(--line); }
.about-panel strong { display: block; margin-bottom: 6px; }
.about-panel span { color: var(--muted); }
.sources-list, .faq-list { display: grid; gap: 18px; }
.source-item h3 a { color: var(--text); }
.source-tag { display: inline-flex; padding: 7px 10px; font-size: 0.72rem; font-weight: 700; border-radius: 999px; background: var(--panel-alt); color: var(--primary); margin-bottom: 10px; }
.contact-form { padding: 26px; }
.field-group { margin-bottom: 18px; }
.field-group label { display: block; margin-bottom: 8px; font-weight: 600; }
.field-group input, .field-group textarea { width: 100%; border-radius: 12px; border: 1px solid var(--line); background: var(--bg); color: var(--text); padding: 14px 16px; }
.full-width { width: 100%; }
.form-status { margin: 16px 0 0; color: var(--success); font-weight: 600; }
.form-status.error { color: #d52f2f; }
.contact-links { list-style: none; padding: 0; margin: 20px 0 0; display: grid; gap: 8px; }
.contact-links a { color: var(--primary); font-weight: 600; }

.site-footer { padding: 56px 0 28px; border-top: 1px solid var(--line); }
.footer-grid { display: grid; grid-template-columns: 1.2fr 0.8fr 0.8fr; gap: 28px; }
.footer-brand { display: inline-block; margin-bottom: 14px; }
.site-footer h3 { margin: 0 0 12px; font-size: 1rem; }
.site-footer ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.footer-bottom { margin-top: 26px; padding-top: 18px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 12px; color: var(--muted); font-size: 0.82rem; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

@media (max-width: 980px) {
  .direction-grid, .category-grid, .article-grid, .about-layout, .contact-layout, .footer-grid, .hero-grid, .author-block { grid-template-columns: 1fr; }
  .main-nav { position: absolute; top: 70px; left: 16px; right: 16px; display: none; flex-direction: column; align-items: stretch; padding: 10px; background: var(--panel); border: 1px solid var(--line); border-radius: 16px; box-shadow: 0 16px 28px var(--shadow); }
  .main-nav a { width: 100%; }
  .main-nav.nav-open { display: flex; }
  .menu-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .section { padding: 72px 0; }
}

@media (max-width: 560px) {
  .hero-copy h1 { font-size: 2.5rem; }
  .inline-row, .footer-bottom { flex-direction: column; align-items: flex-start; }
  .article-reader { padding: 22px 18px; }
  .category-tools { align-items: stretch; flex-direction: column; gap: 8px; }
  .category-results-count { white-space: normal; }
}