/* =========================================================
   header.css — Site header, navigasi + submenu (child menu),
   tombol tema, dan mobile nav.
   Markup di-render PHP theme (header.php + inc/nav-walker.php).
========================================================= */

.site-header {
  position: sticky; top: 0; z-index: 100;
  background: var(--header-bg);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
}

/* Reserve tinggi minimum agar tidak ada layout shift sebelum JS mengisi header */
.header-layout { min-height: 80px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }

.site-brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-display); font-size: 1.15rem; font-weight: 800; flex-shrink: 0;
}
.site-brand__logo { width: 105px; height: auto; flex: 0 0 auto; object-fit: contain; }

/* --- Primary nav --- */
.site-nav { display: flex; flex: 1; justify-content: center; }
.site-nav__list {
  display: flex; align-items: center; gap: 4px; list-style: none; margin: 0; padding: 0;
}
.site-nav__item { position: relative; display: flex; align-items: center; }

.site-nav__link {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 7px 12px; border-radius: 8px; color: var(--muted);
  font-family: var(--font-display); font-size: 0.875rem; font-weight: 600;
  transition: background 0.15s ease, color 0.15s ease;
}
.site-nav__link:hover,
.site-nav__item:hover > .site-nav__link,
.site-nav__item:focus-within > .site-nav__link { background: var(--tile-bg); color: var(--text); }
.site-nav__link[aria-current="page"] { color: var(--primary); }

/* Caret = tombol terpisah (anchor tetap navigasi ke halaman induk) */
.site-nav__caret {
  display: inline-grid; place-items: center; width: 22px; height: 28px;
  padding: 0; border: 0; background: transparent; color: var(--muted); border-radius: 6px;
}
.site-nav__caret::before {
  content: ''; width: 0; height: 0;
  border-left: 4px solid transparent; border-right: 4px solid transparent; border-top: 5px solid currentColor;
  transition: transform 0.2s ease;
}
.site-nav__item:hover > .site-nav__caret,
.site-nav__item:focus-within > .site-nav__caret { color: var(--text); }

/* --- Submenu (dropdown desktop) --- */
.site-subnav {
  position: absolute; top: calc(100% + 8px); left: 0; min-width: 200px;
  display: grid; gap: 2px; padding: 8px; margin: 0; list-style: none;
  background: var(--nav-mobile-bg); border: 1px solid var(--line-strong);
  border-radius: 14px; box-shadow: var(--shadow);
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s ease; z-index: 30;
}
.site-subnav::before { content: ''; position: absolute; left: 0; right: 0; top: -8px; height: 8px; }
.site-nav__item--has-children:hover > .site-subnav,
.site-nav__item--has-children:focus-within > .site-subnav { opacity: 1; visibility: visible; transform: translateY(0); }
.site-nav__item--has-children:hover > .site-nav__caret::before,
.site-nav__item--has-children:focus-within > .site-nav__caret::before { transform: rotate(180deg); }

.site-subnav a {
  display: block; padding: 9px 12px; border-radius: 9px; color: var(--muted);
  font-family: var(--font-display); font-size: 0.85rem; font-weight: 600;
  transition: background 0.15s ease, color 0.15s ease;
}
.site-subnav a:hover, .site-subnav a:focus-visible { background: var(--primary-soft); color: var(--primary); }

/* --- Header right side: tema + CTA + mobile toggle --- */
.header-actions { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }

.theme-toggle {
  width: 40px; height: 40px; border: 1px solid var(--line-strong); border-radius: 10px;
  display: inline-grid; place-items: center; background: transparent; color: var(--text);
  font-size: 1.05rem; line-height: 1; transition: background 0.15s ease, border-color 0.15s ease;
}
.theme-toggle:hover { background: var(--primary-soft); border-color: rgba(245, 197, 24, 0.4); }
.theme-toggle svg { width: 18px; height: 18px; }
.theme-toggle .icon-moon { display: none; }
.theme-toggle .icon-sun  { display: block; }
html[data-theme="light"] .theme-toggle .icon-sun  { display: none; }
html[data-theme="light"] .theme-toggle .icon-moon { display: block; }

.header-cta { min-height: 40px; padding: 0 18px; border-radius: 10px; font-size: 0.85rem; }


.site-nav__cta-wrap { display: none; }

.nav-toggle {
  width: 40px; height: 40px; border: 1px solid var(--line-strong); border-radius: 10px;
  display: none; place-items: center; background: transparent; color: var(--text); font-size: 1.1rem;
  transition: background 0.15s ease, border-color 0.15s ease;
}
.nav-toggle:hover { background: var(--primary-soft); border-color: rgba(245, 197, 24, 0.4); }

/* --- Mobile --- */
@media (max-width: 900px) {
  .nav-toggle { display: inline-grid; }
  .header-cta { display: none; }

  /* Kelompokkan tombol tema + hamburger di kanan (jaraknya rapat) */
  .header-layout { gap: 10px; }
  .header-actions { margin-left: auto; }

  .site-nav {
    position: absolute; top: 80px; left: 16px; right: 16px; display: none;
    flex: none; padding: 14px; background: var(--nav-mobile-bg); border: 1px solid var(--line-strong);
    border-radius: 18px; box-shadow: var(--shadow); max-height: calc(100dvh - 96px); overflow-y: auto;
  }
  .site-nav.is-open { display: block; }
  .site-nav__list { flex-direction: column; align-items: stretch; gap: 2px; }
  .site-nav__item { flex-wrap: wrap; }
  .site-nav__link { flex: 1; padding: 11px 14px; font-size: 0.95rem; }
  .site-nav__caret { width: 44px; height: 44px; }
  .site-nav__caret::before { border-left-width: 5px; border-right-width: 5px; border-top-width: 6px; }

  /* Submenu jadi accordion di mobile (hanya buka via tombol caret) */
  .site-subnav {
    position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none;
    border: 0; border-left: 2px solid var(--line-strong); border-radius: 0;
    margin: 2px 0 6px 14px; padding: 2px 0 2px 8px; min-width: 0; display: none; width: 100%;
  }
  /* Di mobile submenu HANYA dibuka via tombol caret (kelas --open).
     Reveal hover/focus-within desktop tak berpengaruh di sini karena
     hanya mengubah opacity/visibility, sedangkan display default none. */
  .site-nav__item--open > .site-subnav { display: grid; }
  .site-nav__item--open > .site-nav__caret::before { transform: rotate(180deg); }

  .site-nav__cta-wrap { display: block; margin-top: 8px; }
  .site-nav__cta { display: inline-flex; width: 100%; justify-content: center; }
}

@media (max-width: 560px) {
  .header-layout { position: relative; }
  .site-brand__logo { width: 88px; height: auto; }
}

/* a11y: tap target >=44px */
.theme-toggle, .nav-toggle { min-width: 44px; min-height: 44px; }

/* ── Wordmark: DUA berkas, ditukar per tema ─────────────────────────────────────────────────
   Logo dipasang lewat <img>, jadi ia TIDAK bisa mewarisi warna tema seperti teks — satu tinta
   tetap pasti hilang di salah satu tema (putih di atas terang, gelap di atas gelap). Karena itu
   keduanya dirender lalu CSS menyembunyikan yang salah. Tiga keadaan tema dijaga: pilihan
   eksplisit (data-theme) menang di dua arah, dan tanpa stempel apa pun hanya prefers-color-scheme
   yang memisahkan terang/gelap. */
.site-brand__logo--d { display: none; }
:root[data-theme="dark"] .site-brand__logo--l { display: none; }
:root[data-theme="dark"] .site-brand__logo--d { display: inline-block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .site-brand__logo--l { display: none; }
  :root:not([data-theme="light"]) .site-brand__logo--d { display: inline-block; }
}