.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 var(--space-4); }
@media (min-width: 768px) { .container { padding: 0 var(--space-5); } }

.site-header {
  position: sticky; top: 0; z-index: 40; background: rgba(255,255,255,.9);
  backdrop-filter: saturate(180%) blur(12px); border-bottom: 1px solid var(--border);
}
.header__inner { display: flex; align-items: center; gap: var(--space-4); height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 700; letter-spacing: -0.02em; }
.brand:hover { text-decoration: none; }
.brand__mark {
  display: grid; place-items: center; width: 32px; height: 32px; border-radius: 9px;
  background: var(--accent); color: #fff;
}
.header__nav { display: none; gap: var(--space-5); margin-left: auto; }
.header__nav a { color: var(--text-muted); font-size: .93rem; font-weight: 500; }
.header__nav a:hover { color: var(--text); text-decoration: none; }
.header__actions { display: flex; gap: var(--space-2); margin-left: auto; }
@media (min-width: 900px) {
  .header__nav { display: flex; margin-left: auto; }
  .header__actions { margin-left: var(--space-4); }
  .nav-toggle { display: none; }
}
.nav-toggle__bars { display: grid; gap: 4px; }
.nav-toggle__bars span { display: block; width: 18px; height: 2px; background: currentColor; border-radius: 2px; }
.mobile-nav { border-top: 1px solid var(--border); background: var(--surface); }
.mobile-nav__list { list-style: none; margin: 0; padding: var(--space-3) 0; }
.mobile-nav__list a { display: block; padding: 12px 0; color: var(--text); font-weight: 500; }

.site-footer { border-top: 1px solid var(--border); background: var(--surface); margin-top: var(--space-8); }
.footer__grid {
  display: grid; gap: var(--space-6); padding: var(--space-7) 0 var(--space-5);
  grid-template-columns: 1fr;
}
@media (min-width: 700px) { .footer__grid { grid-template-columns: 2fr 1fr 1fr 1fr; } }
.footer__col h3 { font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; color: var(--text-muted); }
.footer__col ul { list-style: none; margin: 0; padding: 0; }
.footer__col li { margin-bottom: 8px; }
.footer__col a { color: var(--text-muted); font-size: .9rem; }
.footer__col a:hover { color: var(--text); }
.footer__bottom {
  border-top: 1px solid var(--border); padding: var(--space-4) 0;
  display: flex; flex-wrap: wrap; gap: var(--space-3); justify-content: space-between;
  color: var(--text-muted); font-size: .85rem;
}

main { display: block; min-height: 60vh; }