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

:root {
  --orange: #FF9500;
  --red: #E03A3A;
  --gradient: linear-gradient(135deg, #FF9500 0%, #E03A3A 100%);
  --black: #0a0a0a;
  --white: #ffffff;
  --border: rgba(255,255,255,0.08);
  --text-muted: rgba(255,255,255,0.45);
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--black);
  color: #fff;
  line-height: 1.75;
  min-height: 100vh;
}

/* ── NAV ── */
.topnav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10,10,10,0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 16px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.topnav-left {
  display: flex;
  align-items: center;
  gap: 12px;
}
.topnav a.back {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: rgba(255,255,255,0.5);
  font-size: 0.88rem;
  font-weight: 500;
  transition: color 0.2s;
}
.topnav a.back:hover { color: #fff; }
.topnav a.back svg { width: 16px; height: 16px; }
.nav-divider { width: 1px; height: 18px; background: var(--border); }
.nav-logo { height: 22px; width: auto; filter: invert(1); opacity: 0.9; }
.topnav-right { color: rgba(255,255,255,0.3); font-size: 0.82rem; }

/* ── PAGE ── */
.page-wrap {
  max-width: 820px;
  margin: 0 auto;
  padding: 64px 24px 120px;
}

/* ── DOC HEADER ── */
.doc-header {
  margin-bottom: 56px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border);
}
.doc-header .badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--orange);
  background: rgba(255,149,0,0.1);
  border: 1px solid rgba(255,149,0,0.25);
  padding: 4px 12px;
  border-radius: 50px;
  margin-bottom: 20px;
}
.doc-header h1 {
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 16px;
}
.doc-header .meta {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.doc-header .meta span { display: flex; align-items: center; gap: 6px; }

/* ── TYPOGRAPHY ── */
h2 {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 48px 0 14px;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 10px;
}
h2::before {
  content: '';
  display: block;
  width: 4px;
  height: 20px;
  background: var(--gradient);
  border-radius: 2px;
  flex-shrink: 0;
}
h2:first-child { margin-top: 0; }

h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin: 28px 0 10px;
  color: rgba(255,255,255,0.75);
}

p {
  margin-bottom: 14px;
  color: rgba(255,255,255,0.6);
  font-size: 0.95rem;
}

ul, ol {
  padding-left: 20px;
  margin-bottom: 14px;
  color: rgba(255,255,255,0.55);
  font-size: 0.95rem;
}
li { margin-bottom: 7px; }

strong { font-weight: 600; color: rgba(255,255,255,0.9); }

code {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 5px;
  padding: 1px 7px;
  font-size: 0.85em;
  font-family: "SF Mono", Menlo, Monaco, monospace;
  color: rgba(255,255,255,0.8);
}

a { color: var(--orange); font-weight: 500; text-decoration: underline; text-underline-offset: 3px; text-decoration-color: rgba(255,149,0,0.3); }
a:hover { color: #ffb340; text-decoration-color: rgba(255,149,0,0.6); }

hr {
  border: none;
  border-top: 1px solid rgba(255,255,255,0.06);
  margin: 40px 0;
}

/* ── TABLE ── */
table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 20px;
  font-size: 0.87rem;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.08);
}
th {
  background: rgba(255,255,255,0.04);
  font-weight: 600;
  color: rgba(255,255,255,0.7);
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  font-size: 0.82rem;
  letter-spacing: 0.03em;
}
td {
  padding: 12px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  color: rgba(255,255,255,0.5);
  vertical-align: top;
  line-height: 1.55;
}
tr:last-child td { border-bottom: none; }
td strong { color: rgba(255,255,255,0.8); }

/* ── FOOTER ── */
.doc-footer {
  margin-top: 80px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.doc-footer img { height: 20px; filter: invert(1); opacity: 0.3; }
.doc-footer p { color: rgba(255,255,255,0.25); font-size: 0.82rem; margin: 0; }

/* ── RESPONSIVE ── */
@media (max-width: 600px) {
  .topnav { padding: 14px 20px; }
  .topnav-right { display: none; }
  .doc-header h1 { font-size: 2rem; }
  td, th { padding: 10px 12px; }
  table { font-size: 0.8rem; }
}