/* Fonts */
@font-face {
  font-family: "Inter";
  src: url("../fonts/Inter-Variable.woff2") format("woff2-variations");
  font-weight: 100 900;
  font-display: swap;
}
@font-face {
  font-family: "Source Serif 4";
  src: url("../fonts/SourceSerif4-Variable.woff2") format("woff2-variations");
  font-weight: 200 900;
  font-display: swap;
}

/* Site-wide layout */
.site-main { position: relative; z-index: 1; }

/* Header */
.site-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px var(--gutter);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  font-family: var(--font-mono);
  font-size: 12px;
  backdrop-filter: blur(14px);
  background: rgba(10,10,10,0.6);
  position: sticky; top: 0; z-index: 10;
}
.logo {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 500; color: var(--fg);
}
.logo-dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--accent-gradient);
  display: inline-block;
}
.site-nav ul {
  display: flex; gap: 24px; color: var(--fg-2); letter-spacing: 1px;
}
.subscribe-btn {
  background: var(--fg); color: var(--bg);
  padding: 7px 14px; border-radius: 6px;
  font-weight: 600; font-size: 11px; font-family: var(--font-sans);
}

/* Footer */
.site-footer {
  border-top: 1px solid rgba(255,255,255,0.08);
  margin-top: 80px;
  padding: 48px var(--gutter);
  max-width: var(--max-content);
  margin-left: auto; margin-right: auto;
  font-family: var(--font-mono); font-size: 12px; color: var(--fg-3);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}
.footer-brand { color: var(--fg-2); }
.footer-brand strong { color: var(--fg); font-weight: 600; margin-left: 8px; }
.footer-brand p { font-size: 11px; color: var(--fg-3); margin-top: 8px; }
.site-footer h5 {
  margin: 0 0 12px; font-size: 10px; letter-spacing: 2px;
  color: var(--fg-3); font-weight: 600;
}
.site-footer ul { line-height: 2; }
.site-footer ul a { color: var(--fg-2); }
.site-footer ul a:hover { color: var(--fg); }
.footer-bottom {
  margin-top: 32px; padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.06);
  display: flex; justify-content: space-between;
}

@media (max-width: 720px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
}