/* ==============================================================
   NAVBAR.CSS — Header sticky glassmorphism + navigasi
   Mobile-first: base style = tampilan mobile (hamburger + slide-in).
   Override desktop ada di responsive.css.
============================================================== */

/* ---------- HEADER WRAPPER ---------- */
.site-header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 1000;
  padding-block: var(--space-xs);
}

/* ---------- NAVBAR (KARTU KACA) ---------- */
.navbar {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-inline: var(--space-sm);
  padding: 0.6rem 1rem;
  border-radius: var(--radius-md);
  background: rgba(7, 7, 11, 0.45);
  border: 1px solid rgba(212, 175, 55, 0.16);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: background var(--transition-med), box-shadow var(--transition-med), border-color var(--transition-med);
}

/* Saat halaman discroll, navbar jadi lebih pekat + ada glow tipis (diberi class oleh navbar.js) */
.navbar.is-scrolled {
  background: rgba(7, 7, 11, 0.82);
  border-color: rgba(212, 175, 55, 0.3);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

/* ---------- BRAND / LOGO ---------- */
.navbar__brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  z-index: 2;
}

.navbar__logo {
  border-radius: 50%;
  box-shadow: 0 0 0 2px rgba(212, 175, 55, 0.4);
}

.navbar__title {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-white-dim);
  line-height: 1.2;
}

.navbar__title strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 1px;
  color: var(--color-gold);
}

/* ---------- TOMBOL HAMBURGER (mobile) ---------- */
.navbar__toggle {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  transition: background var(--transition-fast);
}

.navbar__toggle:hover {
  background: rgba(212, 175, 55, 0.1);
}

.navbar__toggle-bar {
  width: 20px;
  height: 2px;
  background: var(--color-gold-bright);
  border-radius: 2px;
  transition: transform var(--transition-med), opacity var(--transition-med);
}

/* Animasi hamburger jadi "X" saat menu terbuka */
.navbar__toggle[aria-expanded="true"] .navbar__toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.navbar__toggle[aria-expanded="true"] .navbar__toggle-bar:nth-child(2) {
  opacity: 0;
}
.navbar__toggle[aria-expanded="true"] .navbar__toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- OVERLAY (mobile) ---------- */
.navbar__overlay {
  position: fixed;
  inset: 0;
  background: rgba(3, 3, 4, 0.6);
  backdrop-filter: blur(2px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-med), visibility var(--transition-med);
  z-index: 0;
}

.navbar__overlay.is-visible {
  opacity: 1;
  visibility: visible;
}

/* ---------- MENU (mobile: panel kaca slide-in dari kanan) ---------- */
.navbar__menu {
  position: fixed;
  top: 0;
  right: 0;
  height: 100svh;
  width: min(78vw, 320px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--space-md);
  padding: var(--space-xl) var(--space-lg);
  background: rgba(10, 10, 15, 0.92);
  border-left: 1px solid rgba(212, 175, 55, 0.25);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transform: translateX(100%);
  transition: transform var(--transition-med);
  z-index: 1;
}

.navbar__menu.is-open {
  transform: translateX(0);
}

.navbar__link {
  position: relative;
  display: inline-block;
  font-family: var(--font-display);
  font-size: 1.6rem;
  letter-spacing: 1px;
  color: var(--color-white);
  transition: color var(--transition-fast);
}

.navbar__link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: var(--gradient-gold);
  transition: width var(--transition-fast);
}

.navbar__link:hover,
.navbar__link:focus-visible,
.navbar__link.is-active {
  color: var(--color-gold-bright);
}

.navbar__link:hover::after,
.navbar__link:focus-visible::after,
.navbar__link.is-active::after {
  width: 100%;
}