/* Ruang Guru game engine — shared look for all games */
:root {
  --merah: #c62828;
  --merah-tua: #8e1414;
  --emas: #f2b632;
  --hijau: #43a047;
  --hijau-tua: #2e7d32;
  --biru: #1e88e5;
  --ungu: #7e57c2;
  --tinta: #2b2118;
  --kertas: #fffdf7;
  --krem: #f6efe1;
  --abu: #6d6457;
  --benar: #2e9d57;
  --salah: #d64040;
  --garis: 3px solid var(--tinta);
  --bayang: 0 6px 0 rgba(43, 33, 24, .28);
  --judul: "Fredoka", "Baloo 2", "Segoe UI", system-ui, sans-serif;
  --badan: "Nunito", "Segoe UI", system-ui, sans-serif;
  --skala: 1;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; height: 100%; }
body {
  font-family: var(--badan); font-weight: 700; color: var(--tinta);
  background: #8fc7e8; overflow: hidden; font-size: calc(16px * var(--skala));
  user-select: none; -webkit-user-select: none;
}
body.mode-kelas { --skala: 1.22; }
button { font: inherit; color: inherit; cursor: pointer; }
a { color: var(--merah-tua); }

/* ---------- Scene ---------- */
.rg-scene {
  position: fixed; inset: 0; background-size: cover; background-position: center;
  animation: kenburns 40s ease-in-out infinite alternate; transform-origin: center 70%;
}
.rg-scene::after { /* soft vignette for readability */
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(ellipse at center, transparent 45%, rgba(0, 0, 0, .25));
}
@keyframes kenburns { from { transform: scale(1.02); } to { transform: scale(1.1) translateY(-1%); } }

#rg-app { position: fixed; inset: 0; display: flex; flex-direction: column; }

/* ---------- Top bar ---------- */
.rg-top {
  display: flex; align-items: center; gap: 10px; padding: 10px 14px; position: relative; z-index: 5;
  background: linear-gradient(180deg, rgba(255, 253, 247, .92), rgba(255, 253, 247, .0));
}
.rg-top .judul { flex: 1; min-width: 0; line-height: 1.1; }
.rg-top .judul > * { max-width: max-content; }
.rg-top .judul small { display: inline-block; background: rgba(255, 253, 247, .9); border-radius: 999px; padding: 0 8px; margin-top: 2px; }
.rg-top .judul b { font-family: var(--judul); font-size: 1.15em; display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.rg-top .judul small { color: var(--abu); font-size: .72em; }
.ikon-btn {
  width: 42px; height: 42px; border-radius: 12px; border: var(--garis); background: var(--kertas);
  box-shadow: 0 3px 0 rgba(43, 33, 24, .3); font-size: 1.1rem; display: grid; place-items: center; flex: none;
  transition: transform .1s;
}
.ikon-btn:active { transform: translateY(3px); box-shadow: none; }
.ikon-btn[aria-pressed="false"] { opacity: .55; }

/* ---------- HUD ---------- */
.rg-hud { display: flex; gap: 8px; align-items: center; justify-content: center; padding: 0 14px 6px; z-index: 4; flex-wrap: wrap; }
.chip {
  background: var(--kertas); border: var(--garis); border-radius: 999px; padding: 4px 12px;
  box-shadow: 0 3px 0 rgba(43, 33, 24, .25); font-family: var(--judul); font-weight: 600; white-space: nowrap;
}
.chip.api { background: #fff1d6; }
.chip.api.nyala { animation: denyut .6s ease-in-out infinite alternate; }
@keyframes denyut { to { transform: scale(1.08); background: #ffd88a; } }
.rg-waktu { height: 10px; flex: 1 1 100%; max-width: 520px; background: rgba(255, 255, 255, .7); border: 2px solid var(--tinta); border-radius: 999px; overflow: hidden; }
.rg-waktu i { display: block; height: 100%; width: 100%; background: linear-gradient(90deg, var(--hijau), #9ccc65); transform-origin: left; }
.rg-waktu.kritis i { background: linear-gradient(90deg, var(--salah), #ff8a65); }

/* ---------- Stage ---------- */
.rg-stage {
  flex: 1; overflow-y: auto; overflow-x: hidden; padding: 8px 14px 24px; position: relative; z-index: 3;
  display: flex; flex-direction: column; align-items: center;
}
.rg-stage > * { width: 100%; max-width: 980px; }
.tengah { margin: auto 0; }

/* ---------- Cards & panels ---------- */
.panel {
  background: var(--kertas); border: var(--garis); border-radius: 22px; box-shadow: var(--bayang);
  padding: 20px; position: relative;
}
.panel.sempit { max-width: 560px; margin-left: auto; margin-right: auto; }
.panel h2 { font-family: var(--judul); margin: 0 0 6px; font-size: 1.5em; line-height: 1.15; }
.panel p { margin: 0 0 10px; font-weight: 600; }
.muncul { animation: muncul .45s cubic-bezier(.2, 1.4, .4, 1) both; }
@keyframes muncul { from { opacity: 0; transform: translateY(24px) scale(.94); } }
.jatuh { animation: jatuh .6s cubic-bezier(.3, 1.5, .5, 1) both; }
@keyframes jatuh { from { opacity: 0; transform: translateY(-120px) rotate(-6deg); } }
.goyang { animation: goyang .4s; }
@keyframes goyang { 20%, 60% { transform: translateX(-10px) rotate(-2deg); } 40%, 80% { transform: translateX(10px) rotate(2deg); } }
.lompat { animation: lompat .5s; }
@keyframes lompat { 40% { transform: translateY(-16px) scale(1.06); } }

.grid-menu { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.kartu-menu {
  text-align: left; background: var(--kertas); border: var(--garis); border-radius: 20px; box-shadow: var(--bayang);
  padding: 18px; display: flex; flex-direction: column; gap: 6px; transition: transform .15s;
}
.kartu-menu:hover { transform: translateY(-4px) rotate(-.5deg); }
.kartu-menu:active { transform: translateY(3px); box-shadow: 0 2px 0 rgba(43, 33, 24, .28); }
.kartu-menu .ik {
  width: 52px; height: 52px; border-radius: 14px; border: var(--garis); display: grid; place-items: center;
  font-size: 1.6rem; background: var(--biru);
}
.kartu-menu h3 { font-family: var(--judul); margin: 6px 0 0; font-size: 1.3em; }
.kartu-menu p { margin: 0; color: var(--abu); font-size: .9em; }
.tags { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 4px; }
.tags span { background: var(--krem); border-radius: 999px; padding: 2px 10px; font-size: .75em; font-style: italic; }

/* ---------- Buttons ---------- */
.btn {
  border: var(--garis); border-radius: 16px; padding: 12px 22px; font-family: var(--judul); font-weight: 600;
  font-size: 1.1em; background: var(--kertas); box-shadow: 0 5px 0 rgba(43, 33, 24, .3);
  transition: transform .08s, box-shadow .08s; display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  text-decoration: none; color: var(--tinta);
}
.btn:active { transform: translateY(5px); box-shadow: 0 0 0 rgba(0, 0, 0, 0); }
.btn.hijau { background: linear-gradient(180deg, #66bb6a, var(--hijau-tua)); color: #fff; text-shadow: 0 2px 0 rgba(0, 0, 0, .25); }
.btn.merah { background: linear-gradient(180deg, #ef5350, var(--merah-tua)); color: #fff; text-shadow: 0 2px 0 rgba(0, 0, 0, .25); }
.btn.besar { font-size: 1.35em; padding: 14px 34px; }
.btn:disabled { opacity: .5; cursor: default; }
.baris { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; margin-top: 14px; }

/* ---------- Loading ---------- */
.muat { text-align: center; }
.lencana {
  width: 140px; height: 140px; margin: 0 auto 10px; border-radius: 50%; border: 5px solid var(--tinta);
  background: radial-gradient(circle at 35% 30%, #fff8e1, var(--emas)); display: grid; place-items: center;
  font-size: 4.2rem; box-shadow: 0 8px 0 rgba(43, 33, 24, .3); animation: ayun 2.4s ease-in-out infinite;
}
@keyframes ayun { 50% { transform: translateY(-8px) rotate(4deg); } }
.muat h1 {
  font-family: var(--judul); font-size: clamp(2rem, 7vw, 3.4rem); margin: 0; color: #fff; line-height: 1.05;
  -webkit-text-stroke: 2px var(--tinta); paint-order: stroke fill; text-shadow: 0 5px 0 var(--tinta);
}
.muat .sub {
  display: inline-block; margin-top: 10px; background: var(--merah); color: #fff; border: var(--garis);
  border-radius: 999px; padding: 4px 16px; font-family: var(--judul);
}
.bar-muat { width: min(320px, 80%); height: 16px; margin: 22px auto 8px; border: var(--garis); border-radius: 999px; background: #fff; overflow: hidden; }
.bar-muat i { display: block; height: 100%; width: 0; background: repeating-linear-gradient(45deg, var(--emas) 0 12px, #ffd36b 12px 24px); transition: width .25s; }

/* ---------- Belajar slides ---------- */
.slide { display: grid; grid-template-columns: 150px 1fr; overflow: hidden; padding: 0; }
.slide .sisi {
  background: var(--merah); color: #fff; display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 6px; padding: 18px; border-right: var(--garis); font-family: var(--judul); text-align: center;
}
.slide .sisi .ik { font-size: 3rem; }
.slide .isi { padding: 20px; }
.slide .isi ul { margin: 6px 0; padding-left: 20px; }
.slide .isi li { margin: 4px 0; font-weight: 600; }
.titik { display: flex; gap: 6px; justify-content: center; margin-top: 12px; }
.titik i { width: 12px; height: 12px; border-radius: 999px; border: 2px solid var(--tinta); background: #fff; }
.titik i.aktif { width: 30px; background: var(--merah); }
.statbox { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; margin: 10px 0; }
.statbox div { background: var(--krem); border-radius: 14px; padding: 10px 12px; font-size: .88em; font-weight: 600; }
.statbox b { display: block; font-family: var(--judul); color: var(--merah); font-size: 1.5em; }

@media (max-width: 560px) {
  .slide { grid-template-columns: 1fr; }
  .slide .sisi { border-right: 0; border-bottom: var(--garis); flex-direction: row; padding: 12px; }
  .slide .sisi .ik { font-size: 2rem; }
}

/* ---------- Feedback sheet ---------- */
.lembar {
  position: fixed; left: 50%; bottom: 0; width: min(640px, 100%); transform: translate(-50%, 110%);
  background: var(--kertas); border: var(--garis); border-bottom: 0; border-radius: 24px 24px 0 0; z-index: 20;
  padding: 18px 20px 22px; box-shadow: 0 -6px 0 rgba(43, 33, 24, .2); transition: transform .35s cubic-bezier(.2, 1.2, .4, 1);
  max-height: 70vh; overflow-y: auto;
}
.lembar.buka { transform: translate(-50%, 0); }
.lembar .kepala-lembar { display: flex; align-items: center; gap: 10px; font-family: var(--judul); font-size: 1.4em; margin-bottom: 6px; }
.lembar.benar { background: #effaf2; }
.lembar.benar .kepala-lembar { color: var(--benar); }
.lembar.salah { background: #fff1f0; }
.lembar.salah .kepala-lembar { color: var(--salah); }
.lembar .poin { margin-left: auto; background: var(--emas); color: var(--tinta); border: 2px solid var(--tinta); border-radius: 999px; padding: 0 12px; font-size: .8em; }
.lembar ul { margin: 6px 0 0; padding-left: 20px; font-weight: 600; }
.lembar p { margin: 0; font-weight: 600; }

/* ---------- Floating score / stamp ---------- */
.melayang {
  position: fixed; z-index: 30; pointer-events: none; font-family: var(--judul); font-size: 1.8rem; color: #fff;
  -webkit-text-stroke: 1.5px var(--tinta); paint-order: stroke fill; text-shadow: 0 3px 0 var(--tinta);
  animation: melayang 1.1s ease-out forwards;
}
@keyframes melayang { from { transform: translate(-50%, 0) scale(.6); opacity: 0; } 20% { transform: translate(-50%, -10px) scale(1.15); opacity: 1; } to { transform: translate(-50%, -90px) scale(1); opacity: 0; } }
.stempel {
  position: absolute; top: 50%; left: 50%; z-index: 6; pointer-events: none;
  font-family: var(--judul); font-size: clamp(1.8rem, 7vw, 3rem); padding: 6px 18px; border: 5px solid currentColor; border-radius: 14px;
  background: rgba(255, 255, 255, .85); transform: translate(-50%, -50%) rotate(-12deg); animation: stempel .35s cubic-bezier(.3, 1.6, .5, 1) both;
}
.stempel.benar { color: var(--benar); }
.stempel.salah { color: var(--salah); }
@keyframes stempel { from { transform: translate(-50%, -50%) rotate(-12deg) scale(2.4); opacity: 0; } }

/* ---------- Drag & drop ---------- */
.seret { touch-action: none; cursor: grab; }
.seret.diseret { cursor: grabbing; z-index: 40; transition: none !important; box-shadow: 0 16px 24px rgba(0, 0, 0, .25); }
.seret.kembali { transition: transform .35s cubic-bezier(.3, 1.4, .5, 1); }
.zona { transition: transform .15s, background .15s; }
.zona.dekat { transform: scale(1.06); }

/* ---------- Result ---------- */
.hasil { text-align: center; }
.bintang-besar { display: flex; justify-content: center; gap: 6px; font-size: 3.4rem; margin: 4px 0; min-height: 4.2rem; }
.bintang-besar span { filter: grayscale(1) opacity(.35); }
.bintang-besar span.nyala { filter: none; animation: bintang .5s cubic-bezier(.3, 1.8, .5, 1) both; }
@keyframes bintang { from { transform: scale(0) rotate(-90deg); } }
.angka-skor { font-family: var(--judul); font-size: 3.2rem; color: var(--merah); line-height: 1; }
.rekor { display: inline-block; background: var(--emas); border: var(--garis); border-radius: 999px; padding: 2px 14px; font-family: var(--judul); animation: denyut .6s ease-in-out infinite alternate; }

/* ---------- Modal ---------- */
.modal-latar { position: fixed; inset: 0; background: rgba(20, 14, 8, .55); z-index: 50; display: grid; place-items: center; padding: 16px; animation: pudar .2s; }
@keyframes pudar { from { opacity: 0; } }
.modal-latar .panel { width: min(640px, 100%); max-height: 88vh; overflow-y: auto; }
.modal-latar dl { margin: 0; }
.modal-latar dt { font-family: var(--judul); color: var(--merah-tua); margin-top: 12px; }
.modal-latar dd { margin: 2px 0 0; font-weight: 600; }
.modal-latar dd ol, .modal-latar dd ul { margin: 4px 0; padding-left: 20px; }
.saklar { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 2px dashed var(--krem); }
.saklar button { min-width: 84px; }
.saklar button[aria-pressed="true"] { background: linear-gradient(180deg, #66bb6a, var(--hijau-tua)); color: #fff; }

#rg-konfeti { position: fixed; inset: 0; pointer-events: none; z-index: 45; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}