.container { width: min(calc(100% - 2rem), var(--content-default)); margin-inline: auto; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--color-bg) 84%, transparent);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled { border-color: var(--color-divider); box-shadow: var(--shadow-sm); }
.navbar { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); padding: var(--space-4) 0; }
.brand { display: flex; align-items: center; gap: var(--space-3); }
.brand__mark {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 0.9rem;
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, var(--color-primary), color-mix(in srgb, var(--color-primary) 55%, white));
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-sm);
}
.brand__text { font-size: var(--text-sm); font-weight: 700; letter-spacing: 0.04em; }
.site-nav { display: flex; align-items: center; gap: var(--space-4); }
.nav-menu { display: flex; align-items: center; gap: var(--space-5); }
.nav-menu a { font-size: var(--text-sm); color: var(--color-text-muted); }
.nav-menu a:hover, .nav-menu a.is-active { color: var(--color-text); }
.icon-button {
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: var(--color-surface);
  display: grid;
  place-items: center;
}
.nav-toggle { display: none; }
.section { padding: clamp(var(--space-12), 8vw, var(--space-24)) 0; }
.section--hero { padding-top: clamp(var(--space-16), 10vw, 8rem); }
.section--bordered { border-top: 1px solid var(--color-divider); }
.eyebrow {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-full);
  background: var(--color-primary-highlight);
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 48px;
  padding: 0.9rem 1.2rem;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  font-size: var(--text-sm);
  font-weight: 700;
}
.btn--primary { background: var(--color-primary); color: var(--color-text-inverse); }
.btn--primary:hover { background: var(--color-primary-hover); transform: translateY(-1px); }
.btn--secondary { background: var(--color-surface); border-color: var(--color-border); }
.hero-card, .info-card, .featured-panel, .service-panel, .profile-card, .profile-quote, .contact-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
}
.code-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: calc(var(--radius-xl) - var(--space-2));
  padding: var(--space-4);
}
.code-card__bar { display: flex; gap: 0.4rem; margin-bottom: var(--space-4); }
.code-card__bar span { width: 0.65rem; height: 0.65rem; border-radius: var(--radius-full); background: var(--color-text-faint); }
.code-card pre { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.92rem; color: var(--color-text-muted); white-space: pre-wrap; }
.metric-card, .tag, .contact-link {
  border: 1px solid var(--color-border);
  background: var(--color-surface-2);
}
.contact-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-lg);
}
.contact-link span { color: var(--color-text-muted); }
.contact-link strong { font-size: var(--text-sm); }
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (max-width: 760px) {
  .nav-toggle { display: grid; }
  .nav-menu {
    position: absolute;
    top: 100%; left: 0; right: 0;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-4) 1rem var(--space-5);
    background: color-mix(in srgb, var(--color-bg) 95%, transparent);
    border-bottom: 1px solid var(--color-divider);
  }
  .nav-menu.is-open { display: flex; }
}
@media (prefers-reduced-motion: reduce) {
  .reveal, .reveal.is-visible { opacity: 1; transform: none; transition: none; }
  .btn--primary:hover { transform: none; }
}