/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
}

.brand:hover {
  text-decoration: none;
}

.nav-toggle {
  display: inline-flex;
  padding: 0.45rem;
  border: 1px solid var(--slate-300);
  border-radius: var(--radius-xl);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}

.nav-links {
  display: none;
  position: absolute;
  inset: 64px 0 auto;
  flex-direction: column;
  gap: 0.25rem;
  margin: 0;
  padding: 0.75rem var(--space) 1.25rem;
  list-style: none;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.nav-links.is-open {
  display: flex;
}

.nav-links a:not(.btn) {
  display: block;
  padding: 0.4rem 0;
  color: var(--text-muted);
}

.nav-links a:not(.btn):hover {
  color: var(--text);
  text-decoration: none;
}

@media (min-width: 768px) {
  .nav-toggle {
    display: none;
  }

  .nav-links {
    display: flex;
    position: static;
    flex-direction: row;
    align-items: center;
    gap: 1.5rem;
    padding: 0;
    border: 0;
    background: none;
  }
}

/* Buttons: same shapes as AppButton in the extension */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.1rem;
  border: 1px solid transparent;
  border-radius: var(--radius-xl);
  font-size: 0.92rem;
  font-weight: 600;
  transition: background 0.15s ease;
}

.btn:hover {
  text-decoration: none;
}

.btn-primary {
  background: var(--brand-600);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--brand-700);
}

.btn-secondary {
  border-color: var(--slate-300);
  background: var(--surface);
  color: var(--slate-800);
}

.btn-secondary:hover {
  background: var(--slate-50);
}

.btn-sm {
  padding: 0.45rem 0.85rem;
  font-size: 0.875rem;
}

/* FAQ */
.faq-list {
  padding-block: 0.25rem;
}

.faq-list details {
  padding: 1rem 0;
}

.faq-list details + details {
  border-top: 1px solid var(--border);
}

.faq-list summary {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-weight: 600;
  list-style: none;
  cursor: pointer;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  content: '+';
  flex: none;
  color: var(--slate-400);
  font-weight: 400;
}

.faq-list details[open] summary::after {
  content: '−';
}

.faq-list details p {
  margin: 0.6rem 0 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Footer */
.site-footer {
  margin-top: var(--section-gap);
  padding: 2rem 0;
  border-top: 1px solid var(--border);
  background: var(--surface);
  font-size: 0.875rem;
  color: var(--text-faint);
}

.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 2rem;
}

.site-footer p {
  margin: 0;
}

.site-footer nav {
  display: flex;
  gap: 1.25rem;
}

.site-footer a {
  color: var(--text-faint);
  font-weight: 400;
}