/**
 * Navigasi bawah — hanya mobile; sembunyi saat scroll ke bawah, tampil saat scroll ke atas.
 *
 * Ruang di BAWAH teks footer: pakai padding-bottom di .site-footer (bukan body) supaya
 * warna footer menyatu sampai di atas nav — tanpa strip kosong / tanpa “lubang” ganda.
 * env(safe-area-inset-bottom) sekali di footer = tinggi nav tetap + area aman iPhone.
 */

.mobile-bottom-nav {
  display: none;
}

@media (max-width: 768px) {
  /* Tinggi area nav (ikon+label, tanpa safe area) — harus pas supaya footer tidak “lebihan” */
  body.has-mobile-bottom-nav {
    --mobile-nav-stack: 42px;
  }

  /**
   * Sisi/atas: sama Kontak (25px 15px). Di bawah teks hak cipta: sedikit ruang saja
   * + tinggi nav + safe area — jangan dobel “25px” seperti halaman tanpa bottom nav.
   */
  body.has-mobile-bottom-nav .site-footer {
    margin-bottom: 0;
    padding: 25px 15px;
    padding-bottom: calc(10px + var(--mobile-nav-stack) + env(safe-area-inset-bottom, 0px));
    font-size: 15px;
  }

  body.has-mobile-bottom-nav .site-footer .footer-copy {
    margin: 0;
    padding: 0;
    opacity: 0.8;
  }

  body.has-mobile-bottom-nav .site-footer .footer-links {
    margin-bottom: 10px;
  }

  body.dark.has-mobile-bottom-nav .site-footer {
    padding: 18px 12px;
    padding-bottom: calc(8px + var(--mobile-nav-stack) + env(safe-area-inset-bottom, 0px));
    font-size: 0.8rem;
  }

  body.donasi-page.has-mobile-bottom-nav .site-footer {
    padding: 25px 15px;
    padding-bottom: calc(10px + var(--mobile-nav-stack) + env(safe-area-inset-bottom, 0px));
  }

  body.dark.donasi-page.has-mobile-bottom-nav .site-footer {
    padding: 18px 12px;
    padding-bottom: calc(8px + var(--mobile-nav-stack) + env(safe-area-inset-bottom, 0px));
  }

  .mobile-bottom-nav {
    display: flex;
    position: fixed;
    z-index: 9998;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 4px 0 env(safe-area-inset-bottom, 0px);
    justify-content: space-around;
    align-items: stretch;
    gap: 0;
    min-height: 0;
    box-sizing: border-box;
    background: rgba(248, 250, 252, 0.94);
    border-top: 1px solid rgba(15, 23, 42, 0.12);
    box-shadow: 0 -4px 24px rgba(15, 23, 42, 0.08);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.2s ease;
  }

  body.dark .mobile-bottom-nav {
    background: rgba(15, 23, 42, 0.94);
    border-top-color: rgba(148, 163, 184, 0.2);
    box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.35);
  }

  .mobile-bottom-nav.is-hidden {
    transform: translateY(100%);
    opacity: 0.98;
    pointer-events: none;
  }

  @media (prefers-reduced-motion: reduce) {
    .mobile-bottom-nav {
      transition: none;
    }
  }

  .mobile-bottom-nav__item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1px;
    padding: 3px 4px 3px;
    min-width: 0;
    font-size: 10px;
    font-weight: 600;
    line-height: 1.15;
    color: #64748b;
    text-decoration: none;
    -webkit-tap-highlight-color: transparent;
  }

  body.dark .mobile-bottom-nav__item {
    color: #94a3b8;
  }

  body.dark .mobile-bottom-nav__item[data-mobile-nav="bookmark"],
  body.dark .mobile-bottom-nav__item[data-mobile-nav="offline"] {
    color: rgba(226,232,240,0.92);
  }

  body.dark .mobile-bottom-nav__item[data-mobile-nav="bookmark"] i,
  body.dark .mobile-bottom-nav__item[data-mobile-nav="offline"] i {
    color: rgba(56,189,248,0.95);
    filter: drop-shadow(0 8px 18px rgba(0,0,0,0.35));
  }

  .mobile-bottom-nav__item i {
    font-size: 17px;
    line-height: 1;
    opacity: 0.9;
  }

  .mobile-bottom-nav__item span {
    line-height: 1.15;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
  }

  .mobile-bottom-nav__item:hover,
  .mobile-bottom-nav__item:focus-visible {
    color: #0f172a;
    outline: none;
  }

  body.dark .mobile-bottom-nav__item:hover,
  body.dark .mobile-bottom-nav__item:focus-visible {
    color: #f1f5f9;
  }

  .mobile-bottom-nav__item.is-active {
    color: #0d9488;
  }

  body.dark .mobile-bottom-nav__item.is-active {
    color: #2dd4bf;
  }

  .mobile-bottom-nav__item.is-active i {
    opacity: 1;
  }
}