/* === Navigation === */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-white);
  transition: box-shadow 0.3s ease;
}

.site-nav.scrolled {
  box-shadow: 0 2px 20px rgba(7,59,76,0.08);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: 1200px;
  margin: 0 auto;
}

/* Logo */
.nav-logo {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.nav-logo__name {
  font-family: 'Fraunces', serif;
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--color-deep);
}

.nav-logo__sub {
  font-family: 'Nunito', sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-text-muted);
  letter-spacing: 0.5px;
}

/* Desktop Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-family: 'Nunito', sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-text);
  position: relative;
  transition: color 0.2s ease;
  padding: 4px 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: width 0.3s ease;
}

.nav-links a:hover {
  color: var(--color-primary);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-links a.active {
  color: var(--color-primary);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 110;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 3px;
  background: var(--color-deep);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.hamburger.open span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.hamburger.open span:nth-child(2) {
  opacity: 0;
}

.hamburger.open span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Mobile Overlay */
.nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-white);
  z-index: 105;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.nav-overlay.open {
  opacity: 1;
  visibility: visible;
}

.nav-overlay a {
  font-family: 'Nunito', sans-serif;
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--color-deep);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.3s ease, transform 0.3s ease, color 0.2s ease;
}

.nav-overlay.open a {
  opacity: 1;
  transform: translateY(0);
}

.nav-overlay.open a:nth-child(1) { transition-delay: 0.05s; }
.nav-overlay.open a:nth-child(2) { transition-delay: 0.1s; }
.nav-overlay.open a:nth-child(3) { transition-delay: 0.15s; }
.nav-overlay.open a:nth-child(4) { transition-delay: 0.2s; }
.nav-overlay.open a:nth-child(5) { transition-delay: 0.25s; }
.nav-overlay.open a:nth-child(6) { transition-delay: 0.3s; }

.nav-overlay a:hover {
  color: var(--color-primary);
}

.nav-overlay a.active {
  color: var(--color-primary);
}