/* ==========================================================================
   navbar.css — header global (identik di kelima halaman)
   ========================================================================== */

.site-header {
  position: relative;
  z-index: 20;
  flex: 0 0 auto;
  height: var(--header-height);
  background-color: var(--color-cream);
  /* tanpa box-shadow, sesuai referensi */
}

.header-inner {
  position: relative;
  width: 100%;
  height: 100%;
}

/* ---------- Logo ---------- */
.brand {
  position: absolute;
  top: var(--logo-offset-y);
  left: var(--logo-offset-x);
  display: block;
  width: var(--logo-width);
}

.brand__logo {
  width: 100%;
  height: auto;
  object-fit: contain;
  object-position: left center;
}

/* ---------- Daftar menu ---------- */
.site-nav {
  position: absolute;
  top: calc(var(--nav-center-y) - (var(--nav-item-height) / 2));
  right: var(--nav-edge);
  width: var(--nav-total-width);
  height: var(--nav-item-height);
}

.nav-list {
  position: relative;
  z-index: 1;                      /* teks selalu di atas kotak penanda */
  display: flex;
  align-items: center;
  height: 100%;
}

.nav-item {
  display: flex;
  flex: 0 0 var(--nav-slot-width);
  justify-content: center;
  width: var(--nav-slot-width);
}

.nav-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--nav-item-width);
  height: var(--nav-item-height);
  border-radius: var(--pill-radius);
  color: var(--color-red);
  font-size: var(--fs-nav);
  font-weight: 400;
  line-height: 1.2;
  white-space: nowrap;
  transition: color 0.15s ease,
              transform var(--pill-slide-duration) var(--pill-slide-ease);
}

.nav-link:hover {
  color: var(--color-red-dark);
}

/* ---------- Menu aktif: kotak putih + kotak cream di dalam,
   turun melewati batas bawah navbar ---------- */
.nav-link.is-active {
  transform: translateY(var(--pill-drop));
  border: var(--pill-border) solid var(--color-white);
  background-color: var(--color-cream);
  background-clip: padding-box;
  cursor: default;
}

.nav-link.is-active:hover {
  color: var(--color-red);
}

/* ==========================================================================
   Kotak penanda yang menggeser saat menu diklik
   --------------------------------------------------------------------------
   Elemen .nav-indicator dibuat oleh js/navigation.js. Tampilannya persis
   sama dengan kotak menu aktif (kotak putih + kotak cream di dalam), hanya
   saja diposisikan absolut sehingga bisa dianimasikan tanpa mengubah
   sedikit pun tata letak navbar. Tanpa JavaScript, kotak ini tidak pernah
   dibuat dan .nav-link.is-active tetap tampil seperti semula.
   ========================================================================== */
.nav-indicator {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 0;
  width: var(--nav-item-width);
  height: var(--nav-item-height);
  border: var(--pill-border) solid var(--color-white);
  border-radius: var(--pill-radius);
  background-color: var(--color-cream);
  background-clip: padding-box;
  pointer-events: none;
  transition: transform var(--pill-slide-duration) var(--pill-slide-ease),
              width var(--pill-slide-duration) var(--pill-slide-ease),
              height var(--pill-slide-duration) var(--pill-slide-ease);
}

/* Sebelum posisi awal dihitung, kotak belum boleh beranimasi. */
.nav-indicator.is-instant {
  transition: none;
}

/* Saat kotak penanda aktif, kotak bawaan pada tautan dimatikan
   (ukuran, radius, dan posisinya tetap sama persis). */
.site-nav.has-indicator .nav-link.is-active {
  border-color: transparent;
  background-color: transparent;
}

/* Selama animasi berjalan: teks tujuan ikut turun, teks lama ikut naik. */
.site-nav.has-indicator .nav-link.is-sliding {
  transform: translateY(var(--pill-drop));
}

.site-nav.has-indicator .nav-link.is-leaving {
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .nav-indicator,
  .nav-link {
    transition: color 0.15s ease;
  }
}

/* ---------- Tombol hamburger (hanya tampil di mobile) ---------- */
.nav-toggle {
  position: absolute;
  top: 50%;
  right: 1rem;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.3125rem;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  transform: translateY(-50%);
}

.nav-toggle__bar {
  display: block;
  width: 1.75rem;
  height: 3px;
  border-radius: 2px;
  background-color: var(--color-red);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}