/* ============================================
   Site Header
   ============================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
  transition: box-shadow var(--transition-base);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.header-logo {
  display: inline-flex;
  align-items: center;
  background: #e8913a;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  text-decoration: none;
}

.header-logo-text {
  font-family: 'Georgia', 'Times New Roman', serif;
  font-weight: 900;
  color: var(--color-white);
  font-size: var(--font-size-xl);
  line-height: 1;
  letter-spacing: -0.02em;
}

.header-logo-text .logo-sub {
  font-size: 0.55em;
  font-weight: 700;
  vertical-align: baseline;
  letter-spacing: 0.02em;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.header-phone {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-700);
  font-size: var(--font-size-sm);
}

.header-phone svg {
  width: 18px;
  height: 18px;
  color: var(--color-primary);
}

/* Mobile hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: var(--space-1);
}

.hamburger span {
  display: block;
  height: 2px;
  background: var(--color-gray-700);
  border-radius: 2px;
  transition: var(--transition-base);
}

/* Section navigation (sticky sub-nav) */
.section-nav {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
}

.section-nav-inner {
  display: flex;
  gap: var(--space-1);
  padding: var(--space-3) 0;
  flex-wrap: wrap;
}

.section-nav-link {
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-600);
  border-radius: var(--radius-full);
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.section-nav-link:hover {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.section-nav-link.active {
  color: var(--color-white);
  background: var(--color-primary);
}