/* Hal-hal yang tidak praktis ditulis sebagai utility Tailwind. */

/* Utility display (mis. .flex) tidak boleh mengalahkan atribut hidden. */
[hidden] { display: none !important; }

.tanpa-scrollbar { scrollbar-width: none; }
.tanpa-scrollbar::-webkit-scrollbar { display: none; }

/* ---------- Kartu flip 3D ---------- */
.kartu-scene { perspective: 1200px; }

.kartu-tilt {
  transform: rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg));
  transform-style: preserve-3d;
  transition: transform 0.2s ease-out;
}

.kartu-inner {
  transform-style: preserve-3d;
  transition: transform 0.7s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.kartu.terbalik .kartu-inner { transform: rotateY(180deg); }

.kartu-muka {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.kartu-belakang { transform: rotateY(180deg); }

/* ---------- Kartu masuk & keluar ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px) scale(0.97);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.tampak {
  opacity: 1;
  transform: none;
}

.kartu.keluar {
  animation: keluar 0.3s ease-in forwards;
  pointer-events: none;
}

@keyframes keluar {
  to { opacity: 0; transform: scale(0.8) rotate(-4deg); }
}

/* ---------- Skeleton ---------- */
.shimmer {
  background: linear-gradient(100deg, #e7e5e4 30%, #f5f5f4 50%, #e7e5e4 70%);
  background-size: 200% 100%;
  animation: shimmer 1.4s linear infinite;
}

@keyframes shimmer {
  to { background-position: -200% 0; }
}

/* ---------- Hero ---------- */
.daun-melayang { animation: melayang 9s ease-in-out infinite; }

@keyframes melayang {
  0%, 100% { transform: translateY(0) rotate(-8deg); }
  50% { transform: translateY(-22px) rotate(10deg); }
}

/* ---------- Kuis ---------- */
.opsi.benar {
  border-color: #15803d;
  background: #dcfce7;
  color: #14532d;
  animation: denyut 0.5s ease;
}

.opsi.salah {
  border-color: #b91c1c;
  background: #fee2e2;
  color: #7f1d1d;
  animation: getar 0.4s ease;
}

@keyframes denyut {
  50% { transform: scale(1.04); }
}

@keyframes getar {
  20%, 60% { transform: translateX(-6px); }
  40%, 80% { transform: translateX(6px); }
}

dialog[open] { animation: muncul 0.3s cubic-bezier(0.2, 0.8, 0.2, 1); }

@keyframes muncul {
  from { opacity: 0; transform: translateY(16px) scale(0.96); }
}

/* ---------- Toast ---------- */
.toast:not([hidden]) { animation: toast-naik 0.3s ease; }

@keyframes toast-naik {
  from { opacity: 0; transform: translate(-50%, 12px); }
}

/* ---------- Hormati preferensi pengguna ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }

  .reveal { opacity: 1; transform: none; }
}

/* Lapisan gelap supaya teks di atas ilustrasi tetap terbaca; di layar sempit ilustrasi diredupkan. */
.ds-tirai { background: linear-gradient(90deg, rgb(15 47 32 / .9) 0%, rgb(15 47 32 / .7) 38%, rgb(15 47 32 / 0) 62%); }
@media (max-width: 1099px) {
  .ds-hutan { opacity: .55; }
  .ds-tirai { background: linear-gradient(180deg, rgb(15 47 32 / .55) 0%, rgb(15 47 32 / .75) 60%, rgb(15 47 32 / .35) 100%); }
}
/* Hutan senja di kepala halaman (8 Nov 2026): kunang-kunang berkelip, kupu-kupu mengepak dan melayang, burung melintas. */
.ds-kunang { animation: ds-kerlip 3.6s ease-in-out infinite; }
@keyframes ds-kerlip { 0%, 100% { opacity: .15; transform: translate(0, 0); } 50% { opacity: 1; transform: translate(6px, -8px); } }
.ds-kupu { transform: translate(var(--x), var(--y)); animation: ds-layang 14s ease-in-out infinite; }
@keyframes ds-layang {
  0%, 100% { transform: translate(var(--x), var(--y)); }
  25% { transform: translate(calc(var(--x) + 40px), calc(var(--y) - 30px)); }
  50% { transform: translate(calc(var(--x) + 12px), calc(var(--y) - 62px)); }
  75% { transform: translate(calc(var(--x) - 30px), calc(var(--y) - 22px)); }
}
.ds-sayap { transform-box: fill-box; transform-origin: center; animation: ds-kepak .32s ease-in-out infinite alternate; }
@keyframes ds-kepak { from { transform: scaleX(1); } to { transform: scaleX(.25); } }
.ds-burung { animation: ds-melintas 22s linear infinite; opacity: 0; }
@keyframes ds-melintas { 0% { transform: translate(260px, 10px); opacity: 0; } 10%, 85% { opacity: .9; } 100% { transform: translate(-560px, -30px); opacity: 0; } }
@media (prefers-reduced-motion: reduce) {
  .ds-kunang, .ds-sayap, .ds-burung { animation: none; }
  .ds-kupu { animation: none; }
  .ds-burung { opacity: .8; }
}