:root {
  --text: #111418;
  --text-soft: #3a3f47;
  --muted: #6b7280;
  --border: #e5e7eb;
  --border-strong: #d1d5db;
  --accent: #008060;
  --accent-hover: #006e52;
  --accent-soft: rgba(0, 128, 96, 0.08);
  --bg: #ffffff;
  --bg-subdued: #f7f8fa;
  --bg-elevated: #ffffff;
  --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.04);
  --shadow-md: 0 4px 14px rgba(16, 24, 40, 0.06);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  padding: 0;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(0, 128, 96, 0.06), transparent 60%),
    radial-gradient(900px 500px at -10% 10%, rgba(0, 128, 96, 0.04), transparent 60%),
    var(--bg);
  color: var(--text);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.page {
  max-width: 860px;
  margin: 0 auto;
  padding: 40px 24px 96px;
}

/* Brand header */
header.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  margin-bottom: 28px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

header.brand .logo {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  object-fit: contain;
  background: var(--bg-subdued);
  padding: 4px;
  flex-shrink: 0;
}

header.brand .brand-text { display: flex; flex-direction: column; }
header.brand .brand-name { font-weight: 650; font-size: 16px; letter-spacing: -0.01em; color: var(--text); }
header.brand .brand-sub { font-size: 13px; color: var(--muted); }

/* Title block */
.title-block {
  margin-bottom: 24px;
}
.title-block h1.page-title {
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 6px;
  color: var(--text);
}
.title-block .meta {
  color: var(--muted);
  font-size: 14px;
  margin: 0;
}

/* Sticky nav */
nav.legal-nav {
  position: sticky;
  top: 12px;
  z-index: 5;
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  margin-bottom: 40px;
  padding: 6px;
  background: rgba(255, 255, 255, 0.85);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  backdrop-filter: saturate(140%) blur(10px);
  border: 1px solid var(--border);
  border-radius: 999px;
  box-shadow: var(--shadow-sm);
}

nav.legal-nav a {
  color: var(--text-soft);
  text-decoration: none;
  font-size: 14px;
  font-weight: 550;
  padding: 8px 14px;
  border-radius: 999px;
  transition: background 0.15s ease, color 0.15s ease;
}

nav.legal-nav a:hover {
  color: var(--accent);
  background: var(--accent-soft);
}

/* Sections */
section.doc {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
  scroll-margin-top: 84px;
}

section.doc h1 {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin: 0 0 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}

section.doc h2 {
  font-size: 18px;
  font-weight: 650;
  letter-spacing: -0.005em;
  margin: 28px 0 8px;
  color: var(--text);
}

section.doc h3 {
  font-size: 15px;
  font-weight: 600;
  margin: 20px 0 4px;
  color: var(--text-soft);
}

section.doc p, section.doc ul {
  color: var(--text-soft);
  margin: 0 0 12px;
}

section.doc ul {
  padding-left: 22px;
}

section.doc li {
  margin-bottom: 6px;
}

section.doc strong { color: var(--text); font-weight: 600; }

section.doc a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s ease;
}
section.doc a:hover {
  border-bottom-color: var(--accent);
}

/* Footer */
footer.legal-footer {
  margin-top: 40px;
  padding: 20px 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  color: var(--muted);
  font-size: 13px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

footer.legal-footer a {
  color: var(--muted);
  text-decoration: none;
}
footer.legal-footer a:hover { color: var(--accent); }

/* Responsive */
@media (max-width: 640px) {
  .page { padding: 20px 16px 64px; }
  section.doc { padding: 24px 20px; }
  .title-block h1.page-title { font-size: 28px; }
  section.doc h1 { font-size: 22px; }
  nav.legal-nav { border-radius: var(--radius-md); }
  nav.legal-nav a { padding: 8px 10px; font-size: 13px; }
  header.brand { padding: 14px 16px; }
}

/* Dark mode */
@media (prefers-color-scheme: dark) {
  :root {
    --text: #f3f4f6;
    --text-soft: #d1d5db;
    --muted: #9ca3af;
    --border: #262b33;
    --border-strong: #353b45;
    --bg: #0b0d10;
    --bg-subdued: #12151a;
    --bg-elevated: #14181e;
    --accent: #3ecf8e;
    --accent-hover: #5ee0a1;
    --accent-soft: rgba(62, 207, 142, 0.12);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.4);
  }
  body {
    background:
      radial-gradient(1200px 600px at 80% -10%, rgba(62, 207, 142, 0.06), transparent 60%),
      radial-gradient(900px 500px at -10% 10%, rgba(62, 207, 142, 0.04), transparent 60%),
      var(--bg);
  }
  nav.legal-nav {
    background: rgba(20, 24, 30, 0.85);
  }
  header.brand .logo { background: var(--bg-subdued); }
}