:root {
  --bg: #f4f7fc;
  --surface: #ffffff;
  --surface-soft: #f7faff;
  --border: #dce6f4;
  --text: #132247;
  --muted: #5d6b86;
  --accent: #163d6b;
  --sand: #e79b22;
  --primary: #1f6bff;
  --primary-strong: #1558da;
  --shadow: 0 18px 45px rgba(18, 42, 87, 0.08);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 18px;
  --radius-sm: 14px;
  --container: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', system-ui, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(31, 107, 255, 0.08), transparent 30%),
    linear-gradient(180deg, #f7faff 0%, #f4f7fc 100%);
}

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

a:hover {
  text-decoration: underline;
}

.container {
  width: min(var(--container), calc(100% - 40px));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(14px);
  background: rgba(248, 251, 255, 0.88);
  border-bottom: 1px solid rgba(220, 230, 244, 0.82);
}

.topbar-inner {
  min-height: 88px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  color: inherit;
}

.brand:hover {
  text-decoration: none;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 16px;
}

.brand-logo-image {
  width: 64px;
  height: 64px;
  object-fit: contain;
  flex: 0 0 auto;
}

.brand-copy {
  display: grid;
  gap: 4px;
}

.brand-copy strong {
  font-size: 1.2rem;
  line-height: 1;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.brand-copy span {
  color: var(--muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

.brand-copy-miner {
  color: var(--accent);
}

.brand-copy-watchdog {
  color: var(--sand);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  padding: 13px 20px;
  font-weight: 700;
  transition: .2s ease;
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  color: #fff;
  background: linear-gradient(180deg, var(--primary), var(--primary-strong));
  box-shadow: 0 12px 28px rgba(31,107,255,.24);
}

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

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.hero {
  padding: 56px 0 22px;
}

.hero-shell {
  background: linear-gradient(180deg, rgba(255,255,255,0.96), rgba(248,251,255,0.96));
  border: 1px solid rgba(220, 230, 244, 0.95);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  padding: 38px;
}

.eyebrow {
  display: inline-flex;
  color: var(--primary);
  font-size: 0.84rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hero h1 {
  margin: 14px 0 14px;
  font-size: clamp(2.4rem, 5vw, 4.4rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
}

.hero-copy {
  max-width: 780px;
}

.hero-copy p {
  margin: 0;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.7;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.meta-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 600;
}

.legal-layout {
  padding: 8px 0 72px;
}

.legal-grid {
  display: grid;
  grid-template-columns: minmax(0, 240px) minmax(0, 1fr);
  gap: 26px;
  align-items: start;
}

.toc-card,
.content-card,
.support-card {
  background: rgba(255,255,255,0.96);
  border: 1px solid rgba(220, 230, 244, 0.95);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.toc-card {
  position: sticky;
  top: 110px;
  padding: 22px;
}

.toc-card h2,
.support-card h2 {
  margin: 0 0 14px;
  font-size: 1rem;
}

.toc-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.toc-list a {
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.4;
}

.toc-list a:hover {
  color: var(--text);
}

.content-card {
  padding: 34px;
}

.content-card section + section {
  margin-top: 30px;
  padding-top: 30px;
  border-top: 1px solid rgba(220, 230, 244, 0.88);
}

.content-card h2 {
  margin: 0 0 12px;
  font-size: 1.45rem;
  line-height: 1.2;
}

.content-card h3 {
  margin: 18px 0 10px;
  font-size: 1.08rem;
}

.content-card p,
.content-card li {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.75;
}

.content-card ul {
  margin: 10px 0 0;
  padding-left: 22px;
}

.support-card {
  margin-top: 26px;
  padding: 24px 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.support-copy p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.footer {
  padding: 0 0 48px;
}

.footer-shell {
  border-top: 1px solid rgba(220, 230, 244, 0.88);
  padding-top: 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  color: var(--muted);
  font-size: 0.95rem;
}

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

@media (max-width: 980px) {
  .topbar-inner,
  .support-card,
  .footer-shell {
    flex-direction: column;
    align-items: stretch;
  }

  .legal-grid {
    grid-template-columns: 1fr;
  }

  .toc-card {
    position: static;
  }

  .topbar-actions {
    justify-content: stretch;
  }

  .topbar-actions .btn {
    width: 100%;
  }
}

@media (max-width: 720px) {
  .container {
    width: min(var(--container), calc(100% - 24px));
  }

  .hero-shell,
  .content-card,
  .toc-card,
  .support-card {
    padding: 22px;
  }

  .brand {
    align-items: flex-start;
  }

  .brand-logo-image {
    width: 56px;
    height: 56px;
  }

  .brand-copy strong {
    font-size: 1.05rem;
  }

  .content-card h2 {
    font-size: 1.28rem;
  }
}