:root {
  --bg: #f6f3ee;
  --panel: #fffdf9;
  --text: #171412;
  --muted: #6b625d;
  --line: #ddd3c9;
  --accent: #b6491a;
  --accent-dark: #8e3510;
  --soft: #f2e7dc;
  --shadow: 0 20px 50px rgba(31, 22, 16, 0.08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(182,73,26,0.12), transparent 28%),
    linear-gradient(180deg, #fbf8f2 0%, var(--bg) 100%);
}

a { color: inherit; }

.site-shell {
  width: min(1100px, calc(100% - 32px));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
  background: rgba(246, 243, 238, 0.82);
  border-bottom: 1px solid rgba(221, 211, 201, 0.8);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 14px;
  background: linear-gradient(145deg, #1d120d, #b6491a);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.2);
}

.brand-copy strong {
  display: block;
  font-size: 1rem;
}

.brand-copy span {
  display: block;
  color: var(--muted);
  font-size: 0.88rem;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.nav a {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.95rem;
}

.hero {
  padding: 72px 0 48px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
  align-items: stretch;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--soft);
  color: var(--accent-dark);
  font-size: 0.9rem;
}

.hero h1 {
  margin: 18px 0 16px;
  font-size: clamp(2.4rem, 5vw, 4.8rem);
  line-height: 0.94;
  letter-spacing: -0.04em;
}

.hero p {
  margin: 0 0 24px;
  font-size: 1.08rem;
  line-height: 1.6;
  color: var(--muted);
  max-width: 60ch;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  border: 1px solid transparent;
}

.button.primary {
  background: var(--accent);
  color: #fff;
}

.button.secondary {
  background: transparent;
  border-color: var(--line);
}

.hero-card,
.section-card {
  background: rgba(255, 253, 249, 0.88);
  border: 1px solid rgba(221, 211, 201, 0.9);
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 28px;
}

.hero-card h2,
.section-card h2 {
  margin-top: 0;
  font-size: 1.2rem;
}

.hero-card ul,
.section-card ul,
.section-card ol {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.7;
}

.section-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  padding: 8px 0 48px;
}

.section-card {
  padding: 24px;
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  padding: 0;
  list-style: none;
}

.feature-list li {
  padding: 14px 16px;
  background: rgba(242, 231, 220, 0.55);
  border-radius: 18px;
}

.page-head {
  padding: 56px 0 24px;
}

.page-head h1 {
  margin: 0 0 12px;
  font-size: clamp(2rem, 4vw, 3.4rem);
}

.page-head p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
  max-width: 70ch;
}

.doc {
  padding-bottom: 56px;
}

.doc article {
  background: rgba(255, 253, 249, 0.95);
  border: 1px solid rgba(221, 211, 201, 0.9);
  border-radius: 28px;
  box-shadow: var(--shadow);
  padding: 30px;
}

.doc h2 {
  margin-top: 32px;
  font-size: 1.3rem;
}

.doc h3 {
  margin-top: 20px;
  font-size: 1.05rem;
}

.doc p,
.doc li {
  color: var(--muted);
  line-height: 1.72;
}

.doc .meta {
  color: var(--muted);
  margin-bottom: 18px;
}

.notice {
  border: 1px solid rgba(182,73,26,0.2);
  background: rgba(182,73,26,0.06);
  padding: 14px 16px;
  border-radius: 18px;
  color: var(--accent-dark);
  margin: 18px 0 0;
}

.footer {
  border-top: 1px solid rgba(221, 211, 201, 0.9);
  padding: 24px 0 40px;
  color: var(--muted);
  font-size: 0.95rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

@media (max-width: 820px) {
  .hero,
  .section-grid,
  .feature-list {
    grid-template-columns: 1fr;
  }

  .topbar-inner {
    align-items: flex-start;
    flex-direction: column;
  }
}