*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --gold: #E8A317;
  --blue: #4F7CFF;
  --bg: #0B0F1A;
  --surface: #121826;
  --border: rgba(255,255,255,0.08);
  --text: rgba(255,255,255,0.88);
  --muted: rgba(255,255,255,0.5);
}
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  line-height: 1.75;
  min-height: 100vh;
}
body::before {
  content: '';
  position: fixed; inset: 0;
  background: radial-gradient(ellipse at 20% 0%, rgba(232,163,23,0.08), transparent 50%),
              radial-gradient(ellipse at 80% 100%, rgba(79,124,255,0.06), transparent 50%);
  pointer-events: none;
}
.wrap { max-width: 720px; margin: 0 auto; padding: 48px 24px 80px; position: relative; z-index: 1; }
.back { display: inline-flex; color: var(--muted); text-decoration: none; font-size: 14px; margin-bottom: 32px; }
.back:hover { color: var(--gold); }
.brand { display: flex; align-items: center; gap: 16px; margin-bottom: 32px; padding-bottom: 32px; border-bottom: 1px solid var(--border); }
.sigma {
  width: 56px; height: 56px; border-radius: 16px;
  background: linear-gradient(135deg, var(--gold), #c4840f);
  display: flex; align-items: center; justify-content: center;
  font-size: 32px; font-weight: 700; font-family: Georgia, serif; color: #0B0F1A;
  flex-shrink: 0;
}
h1 { font-size: 2rem; font-weight: 700; }
.meta { color: var(--muted); font-size: 14px; margin-top: 8px; }
h2 { font-size: 1.15rem; margin: 36px 0 12px; color: var(--gold); }
p, li { margin-bottom: 12px; }
ul { padding-left: 1.25rem; margin-bottom: 16px; }
a { color: var(--blue); }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 24px; margin: 24px 0; }
.site-footer { margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--border); font-size: 14px; color: var(--muted); }
.site-footer a { color: var(--muted); margin-right: 16px; text-decoration: none; }
.site-footer a:hover { color: var(--gold); }
html[lang="ar"] body { direction: rtl; }
html[lang="ar"] ul { padding-right: 1.25rem; padding-left: 0; }