:root {
  --bg-deep: #0B0B1F;
  --bg-mid: #12122E;
  --bg-soft: #1A1438;
  --surface: #16162E;
  --surface-elevated: #1F1F3D;
  --primary: #B8A6FF;
  --primary-glow: #8B7FFF;
  --primary-deep: #6B4FE8;
  --gold: #F4D77A;
  --text: #F0EDFF;
  --text-secondary: #A8A4C9;
  --text-tertiary: #6E6B95;
  --stroke: rgba(184, 166, 255, 0.2);
  --max-width: 720px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background:
    radial-gradient(circle at 80% -10%, rgba(107, 79, 232, 0.25), transparent 40%),
    radial-gradient(circle at 10% 110%, rgba(244, 215, 122, 0.1), transparent 40%),
    linear-gradient(180deg, var(--bg-deep), var(--bg-mid) 50%, var(--bg-soft));
  background-attachment: fixed;
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  min-height: 100vh;
  padding: 48px 24px;
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
}

header.nav {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--stroke);
}

.logo {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: radial-gradient(circle at 30% 30%, var(--primary-glow), var(--primary-deep));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  box-shadow: 0 0 24px rgba(184, 166, 255, 0.35);
}

.brand {
  font-family: "Fraunces", "Playfair Display", Georgia, serif;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.brand-sub {
  color: var(--text-secondary);
  font-size: 13px;
  margin-top: 2px;
}

.nav-links {
  margin-left: auto;
  display: flex;
  gap: 18px;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--primary);
}

h1.doc-title {
  font-family: "Fraunces", Georgia, serif;
  font-size: 42px;
  font-weight: 600;
  letter-spacing: -0.5px;
  margin-bottom: 6px;
  line-height: 1.15;
}

p.meta {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 36px;
}

h2 {
  font-family: "Fraunces", Georgia, serif;
  font-size: 24px;
  font-weight: 600;
  margin-top: 36px;
  margin-bottom: 12px;
  color: var(--text);
}

p {
  color: rgba(240, 237, 255, 0.92);
  margin-bottom: 14px;
  font-size: 16px;
}

ul {
  list-style: none;
  margin-bottom: 18px;
}

ul li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 10px;
  color: rgba(240, 237, 255, 0.9);
}

ul li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
}

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

a:hover {
  text-decoration: underline;
}

.callout {
  background: var(--surface);
  border: 1px solid var(--stroke);
  border-radius: 16px;
  padding: 20px 24px;
  margin: 24px 0;
}

.callout.warn {
  background: rgba(255, 107, 122, 0.08);
  border-color: rgba(255, 107, 122, 0.35);
}

.button-row {
  display: flex;
  gap: 12px;
  margin-top: 24px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 14px;
  font-weight: 600;
  font-size: 15px;
  border: 1px solid var(--stroke);
  color: var(--text);
  background: var(--surface-elevated);
  transition: transform 0.15s, background 0.2s;
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--primary-glow), var(--primary-deep));
  color: var(--bg-deep);
  border-color: transparent;
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary), var(--primary-glow));
}

.btn-gold {
  background: linear-gradient(135deg, var(--gold), #D4B355);
  color: var(--bg-deep);
  border-color: transparent;
}

footer {
  margin-top: 64px;
  padding-top: 32px;
  border-top: 1px solid var(--stroke);
  color: var(--text-tertiary);
  font-size: 13px;
  text-align: center;
}

footer a {
  color: var(--text-secondary);
  margin: 0 10px;
}

@media (max-width: 600px) {
  body { padding: 28px 16px; }
  h1.doc-title { font-size: 32px; }
  h2 { font-size: 20px; margin-top: 28px; }
  .nav-links { display: none; }
}