/* ============================================================
   NAVBAR — Fixed header, desktop nav, mobile drawer
   ============================================================ */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: var(--z-nav);
  display: flex;
  align-items: center;
  transition:
    height var(--transition-base),
    background var(--transition-base),
    box-shadow var(--transition-base);
}

.navbar__inner {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--section-pad-x);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* --- Logo --- */
.navbar__logo {
  display: flex;
  flex-direction: column;
  gap: 1px;
  text-decoration: none;
  flex-shrink: 0;
}

.navbar__logo-main {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 300;
  font-style: italic;
  color: var(--color-text);
  line-height: 1.1;
  letter-spacing: 0.02em;
  transition: color var(--transition-base);
}

.navbar__logo-sub {
  font-family: var(--font-sans);
  font-size: 0.6rem;
  font-weight: 400;
  letter-spacing: var(--tracking-super);
  text-transform: uppercase;
  color: var(--color-gold);
  line-height: 1;
}

.navbar__logo:hover .navbar__logo-main {
  color: var(--color-gold-light);
}

/* --- Desktop Navigation --- */
.navbar__nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.navbar__link {
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-text-muted);
  text-decoration: none;
  position: relative;
  padding-bottom: 3px;
  transition: color var(--transition-base);
}

.navbar__link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-gold);
  transition: width var(--transition-base);
}

.navbar__link:hover,
.navbar__link.active {
  color: var(--color-text);
}

.navbar__link:hover::after,
.navbar__link.active::after {
  width: 100%;
}

.navbar__link.active {
  color: var(--color-gold-light);
}

/* --- Hamburger (mobile) --- */
.navbar__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
  z-index: calc(var(--z-nav) + 1);
}

.navbar__hamburger span {
  display: block;
  width: 100%;
  height: 1px;
  background: var(--color-text);
  transition:
    transform var(--transition-base),
    opacity var(--transition-base),
    width var(--transition-base);
  transform-origin: center;
}

/* Hamburger → X animation */
.nav-open .navbar__hamburger span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}
.nav-open .navbar__hamburger span:nth-child(2) {
  opacity: 0;
  width: 0;
}
.nav-open .navbar__hamburger span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* --- Scrolled state --- */
.navbar.scrolled {
  height: var(--nav-height-sm);
  background: rgba(10, 10, 10, 0.95);
  box-shadow: var(--shadow-nav);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

/* --- Mobile Drawer --- */
.nav-drawer {
  position: fixed;
  inset: 0;
  z-index: calc(var(--z-nav) - 1);
  visibility: hidden;
  pointer-events: none;
}

.nav-drawer__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  opacity: 0;
  transition: opacity var(--transition-base);
  backdrop-filter: blur(4px);
}

.nav-drawer__panel {
  position: absolute;
  top: 0;
  right: 0;
  width: min(340px, 85vw);
  height: 100%;
  background: var(--color-bg-alt);
  border-left: 1px solid var(--color-border);
  padding: var(--space-24) var(--space-8) var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  transform: translateX(100%);
  transition: transform var(--transition-slow) cubic-bezier(0.22, 1, 0.36, 1);
}

.nav-open .nav-drawer {
  visibility: visible;
  pointer-events: auto;
}

.nav-open .nav-drawer__overlay {
  opacity: 1;
}

.nav-open .nav-drawer__panel {
  transform: translateX(0);
}

.nav-drawer__link {
  font-family: var(--font-serif);
  font-size: var(--text-2xl);
  font-weight: 300;
  font-style: italic;
  color: var(--color-text-muted);
  text-decoration: none;
  padding-block: var(--space-3);
  border-bottom: 1px solid var(--color-border);
  transition:
    color var(--transition-base),
    padding-left var(--transition-base);
}

.nav-drawer__link:hover,
.nav-drawer__link.active {
  color: var(--color-gold-light);
  padding-left: var(--space-4);
}

.nav-drawer__footer {
  margin-top: auto;
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-text-faint);
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .navbar__nav {
    display: none;
  }
  .navbar__hamburger {
    display: flex;
  }
}