/* Lapisan ponsel bersama untuk uiso.html dan osn.html. Dimuat setelah <style> halaman agar menang di urutan cascade.
   Ponsel (≤860px): navigasi soal pindah ke bilah bawah, daftar nomor soal jadi lembar yang digeser dari bawah. */
.home { font-size: .85rem; color: var(--accent); text-decoration: none; font-weight: 600; white-space: nowrap; }
.home:hover { text-decoration: underline; }
.mbar, .scrim { display: none; }

@media (max-width: 860px) {
  .exam { padding-bottom: calc(88px + env(safe-area-inset-bottom, 0px)); }
  .qnav #prev, .qnav #next, .qnav #finish { display: none; }
  .mbar {
    display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 8px; align-items: center;
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 12;
    background: var(--surface); border-top: 1px solid var(--line);
    padding: 10px max(16px, env(safe-area-inset-right, 0px)) calc(10px + env(safe-area-inset-bottom, 0px)) max(16px, env(safe-area-inset-left, 0px));
  }
  .mbar .btn { min-height: 46px; padding-inline: 14px; }
  .mbar #mList { font-variant-numeric: tabular-nums; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .side {
    position: fixed; top: auto; left: 0; right: 0; bottom: 0; z-index: 14;
    max-height: 78vh; overflow-y: auto; border-radius: 16px 16px 0 0; border-bottom: 0;
    padding: 18px max(16px, env(safe-area-inset-right, 0px)) calc(18px + env(safe-area-inset-bottom, 0px)) max(16px, env(safe-area-inset-left, 0px));
    transform: translateY(105%); visibility: hidden;
  }
  .side.open { transform: none; visibility: visible; box-shadow: 0 -10px 30px rgba(0, 0, 0, .25); }
  .side::before { content: ""; justify-self: center; width: 40px; height: 4px; border-radius: 2px; background: var(--line); }
  .scrim:not([hidden]) { display: block; position: fixed; inset: 0; z-index: 13; background: rgba(0, 0, 0, .35); }
  .cell { height: 42px; }
  .cells { grid-template-columns: repeat(auto-fill, minmax(42px, 1fr)); }
  .opt { padding-block: 12px; }
  .tog button { min-width: 52px; height: 44px; }
  .top .btn.sm { min-height: 40px; }
}
@media (prefers-reduced-motion: no-preference) {
  .side { transition: transform .22s ease, visibility .22s; }
}

/* Ponsel kecil: header ujian tetap satu baris (judul + timer + Riwayat). */
@media (max-width: 520px) {
  .top { flex-wrap: nowrap; gap: 8px; }
  .brand { gap: 8px; min-width: 0; }
  .brand h1 { font-size: 1rem; white-space: nowrap; }
  .brand #sub, .home .lbl { display: none; }
  .home { font-size: 1.3rem; line-height: 1; padding: 4px 6px 4px 0; }
  .top-right { gap: 6px; }
  .timer { font-size: .95rem; padding: 4px 8px; }
}