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

:root {
  --bg: #050505;
  --surface: #14110F;
  --surface-hi: #1F1C19;
  --fg: #F4F1ED;
  --fg-muted: #9D978F;
  --fg-dim: #6E6A64;
  --accent: #E85929;
  --accent-hover: #F06A3A;
  --serif: 'New York', Charter, 'Bitstream Charter', Didot, Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
}

html {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  background: rgba(5, 5, 5, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(244, 241, 237, 0.06);
}

.nav-wordmark {
  text-decoration: none;
}

.nav-wordmark span {
  font-family: var(--serif);
  font-weight: 900;
  font-size: 20px;
  color: var(--fg);
  letter-spacing: -0.04em;
}

.nav-wordmark .dot {
  color: var(--accent);
}

.nav-back {
  font-size: 13px;
  color: var(--fg-muted);
  text-decoration: none;
}

.nav-back:hover {
  color: var(--fg);
}

main {
  flex: 1;
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 56px 24px 80px;
}

main h1 {
  font-family: var(--serif);
  font-weight: 900;
  font-size: 40px;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin-bottom: 8px;
}

main .updated {
  color: var(--fg-dim);
  font-size: 13px;
  margin-bottom: 32px;
}

main .draft-notice {
  border: 1px solid rgba(232, 89, 41, 0.35);
  background: rgba(232, 89, 41, 0.08);
  color: var(--fg-muted);
  font-size: 13px;
  line-height: 1.5;
  padding: 14px 16px;
  border-radius: 10px;
  margin-bottom: 32px;
}

main h2 {
  font-family: var(--serif);
  font-weight: 900;
  font-size: 22px;
  letter-spacing: -0.02em;
  margin-top: 36px;
  margin-bottom: 12px;
}

main h3 {
  font-size: 15px;
  font-weight: 600;
  margin-top: 24px;
  margin-bottom: 8px;
  color: var(--fg);
}

main p {
  color: var(--fg-muted);
  font-size: 15px;
  line-height: 1.65;
  margin-bottom: 14px;
}

main ul {
  list-style: none;
  margin-bottom: 14px;
}

main ul li {
  color: var(--fg-muted);
  font-size: 15px;
  line-height: 1.65;
  padding-left: 18px;
  position: relative;
  margin-bottom: 6px;
}

main ul li::before {
  content: "·";
  color: var(--accent);
  font-weight: 700;
  position: absolute;
  left: 6px;
}

main a {
  color: var(--fg);
  text-decoration: underline;
  text-decoration-color: rgba(244, 241, 237, 0.25);
  text-underline-offset: 3px;
}

main a:hover {
  text-decoration-color: var(--accent);
}

main strong {
  color: var(--fg);
  font-weight: 600;
}

main details {
  border-bottom: 1px solid rgba(244, 241, 237, 0.08);
  padding: 18px 0;
}

main details:first-of-type {
  border-top: 1px solid rgba(244, 241, 237, 0.08);
}

main summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 16px;
  color: var(--fg);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

main summary::-webkit-details-marker {
  display: none;
}

main summary::after {
  content: "+";
  color: var(--fg-dim);
  font-size: 20px;
  font-weight: 400;
  transition: transform 0.2s;
}

main details[open] summary::after {
  content: "−";
}

main details[open] summary {
  margin-bottom: 10px;
}

main details p {
  margin-bottom: 8px;
}

footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  border-top: 1px solid rgba(244, 241, 237, 0.06);
  flex-wrap: wrap;
  gap: 12px;
}

.footer-brand {
  font-family: var(--serif);
  font-weight: 900;
  font-size: 13px;
  color: var(--fg-dim);
  letter-spacing: -0.04em;
}

.footer-brand .dot {
  color: var(--accent);
}

.footer-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-links a {
  font-size: 12px;
  color: var(--fg-dim);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--fg-muted);
}

@media (min-width: 641px) {
  nav { padding: 20px 32px; }
  .nav-wordmark span { font-size: 22px; }
  main { padding: 80px 32px 96px; }
  main h1 { font-size: 56px; }
  main h2 { font-size: 26px; }
}