:root {
  --bg: #15130F;
  --card: #201D18;
  --card-2: #2A261F;
  --line: #3A352C;
  --text: #F2EEE6;
  --muted: #BDB6A7;
  --gold: #E2BE6A;
  --gold-ink: #2A2110;
  --teal: #9FD3CB;
  --red: #E8A598;
  --radius: 12px;
  --display: "Bebas Neue", Impact, sans-serif;
  --body: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--body); font-size: 16px; line-height: 1.5; }
button, input, textarea { font: inherit; color: inherit; }
img { display: block; max-width: 100%; }
code { font-size: 13px; background: var(--card-2); padding: 2px 6px; border-radius: 6px; word-break: break-all; }
[hidden] { display: none !important; }

.brand { font-family: var(--display); font-size: 26px; letter-spacing: .03em; margin: 0; line-height: 1; }
.muted { color: var(--muted); }
.small { font-size: 14px; }
.label { margin: 0 0 6px; font-size: 12px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: var(--gold); }
.error { color: var(--red); min-height: 1.5em; margin: 4px 0; }
.spacer { flex: 1; }

.demo-badge { background: #4A3A12; color: #F6E7C1; font-size: 14px; padding: 8px 16px; text-align: center; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; min-height: 44px; padding: 10px 18px; border-radius: 999px; border: 1px solid var(--line); background: var(--card-2); color: var(--text); font-weight: 700; cursor: pointer; text-decoration: none; }
.btn:hover { border-color: var(--muted); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn-primary { background: var(--gold); border-color: var(--gold); color: var(--gold-ink); }
.btn-primary:hover { background: #EDCB7E; border-color: #EDCB7E; }
.btn-ghost { background: transparent; }
.btn-sm { min-height: 36px; padding: 6px 14px; font-size: 14px; }
.btn-block { width: 100%; margin-top: 12px; }
.danger { color: var(--red); }
:focus-visible { outline: 3px solid var(--teal); outline-offset: 2px; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.center { min-height: 100vh; display: grid; place-items: center; padding: 24px 16px; }
.join { width: 100%; max-width: 420px; display: flex; flex-direction: column; gap: 6px; }
.join h1 { margin: 12px 0 0; font-size: 28px; }
.join label { margin-top: 10px; font-weight: 700; font-size: 14px; }
input, textarea { width: 100%; padding: 12px 14px; border-radius: 10px; border: 1px solid var(--line); background: var(--bg); min-height: 44px; }
textarea { resize: vertical; line-height: 1.5; }
input:focus, textarea:focus { border-color: var(--gold); outline: none; }

.topbar { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; padding: 12px 20px; border-bottom: 1px solid var(--line); position: sticky; top: 0; background: var(--bg); z-index: 5; }
.who { font-weight: 700; }
.pill { font-size: 14px; padding: 4px 12px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); }
.pill-strong { color: var(--text); font-weight: 700; }

.slide-frame { position: relative; aspect-ratio: 16 / 9; background: #0D0C0A; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); }
.slide-img { width: 100%; height: 100%; object-fit: contain; }
.slide-wait { position: absolute; inset: 0; display: grid; place-items: center; color: var(--muted); font-size: 18px; }

/* Siswa */
.student { max-width: 1100px; margin: 0 auto; padding: 16px; display: flex; flex-direction: column; gap: 16px; }
.panel { display: flex; flex-direction: column; gap: 16px; }
.prompt { display: block; margin: 0 0 14px; font-size: 20px; font-weight: 700; line-height: 1.35; }
.options { display: flex; flex-wrap: wrap; gap: 10px; }
.opt { flex: 1 1 160px; min-height: 52px; padding: 12px 16px; border-radius: 10px; border: 1.5px solid var(--line); background: var(--card-2); font-weight: 700; text-align: left; cursor: pointer; }
.opt:hover { border-color: var(--muted); }
.opt.is-on { border-color: var(--gold); background: #3A3018; color: #FFF4D6; }
.row { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 12px; }
.status { margin: 0; color: var(--teal); font-size: 14px; }
.note { color: var(--muted); font-size: 18px; }
.quiz-q { border: 0; padding: 0; margin: 0 0 16px; }
.quiz-q legend { font-weight: 700; margin-bottom: 8px; padding: 0; }
.spotlight { background: #2E2717; border: 2px solid var(--gold); border-radius: var(--radius); padding: 18px 20px; }
.spotlight p { margin: 0; }
.spot-text { font-size: 22px; font-weight: 700; line-height: 1.4; }
.spotlight.sm { padding: 12px 14px; margin-bottom: 12px; }
.spotlight.sm .btn { margin-top: 8px; }

/* Hasil */
.results { display: flex; flex-direction: column; gap: 14px; }
.results-qt { margin: 0 0 6px; font-weight: 700; }
.bars { display: flex; flex-direction: column; gap: 8px; }
.bar { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 2fr) auto; gap: 10px; align-items: center; font-size: 15px; }
.bar-track { height: 14px; background: var(--card-2); border-radius: 999px; overflow: hidden; }
.bar-fill { height: 100%; background: var(--gold); border-radius: 999px; transition: width .3s; }
.bar.is-key .bar-label { color: var(--teal); font-weight: 800; }
.bar.is-key .bar-fill { background: var(--teal); }
.bar-num { color: var(--muted); font-variant-numeric: tabular-nums; white-space: nowrap; }

/* Guru */
.guru { display: flex; flex-wrap: wrap; gap: 20px; padding: 16px 20px 40px; align-items: flex-start; }
.stage { flex: 999 1 560px; min-width: 0; display: flex; flex-direction: column; gap: 12px; }
.side { flex: 1 1 340px; min-width: 0; display: flex; flex-direction: column; gap: 16px; }
.controls { display: flex; align-items: center; justify-content: center; gap: 16px; }
.counter { font-family: var(--display); font-size: 28px; min-width: 80px; text-align: center; }
.strip { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 6px; }
.thumb { flex: 0 0 120px; padding: 0; border: 2px solid transparent; border-radius: 8px; background: none; cursor: pointer; color: var(--muted); font-size: 12px; font-weight: 700; }
.thumb img { border-radius: 6px; }
.thumb span { display: block; padding: 2px 0; }
.thumb.is-on { border-color: var(--gold); color: var(--gold); }
.resp, .notes { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px; }
.resp-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 8px; }
.resp-head h2 { margin: 0; font-size: 18px; }
.prompt-sm { margin: 0 0 12px; color: var(--muted); font-size: 15px; }
.answers { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; max-height: 52vh; overflow-y: auto; }
.answers li { background: var(--card-2); border-radius: 10px; padding: 12px 14px; }
.answers p { margin: 0; }
.ans-name { font-weight: 800; color: var(--gold); font-size: 14px; }
.ans-text { margin: 4px 0 8px !important; font-size: 16px; white-space: pre-wrap; overflow-wrap: anywhere; }
.notes summary { cursor: pointer; font-weight: 800; }
.say { margin: 10px 0; padding: 10px 14px; border-left: 3px solid var(--gold); background: var(--card-2); border-radius: 0 8px 8px 0; }
.say p { margin: 6px 0; }
.resp > .btn { margin-top: 12px; }

/* Layar presentasi */
.layar { height: 100vh; display: grid; place-items: center; padding: 0; }
.layar .slide-frame { width: min(100vw, calc(100vh * 16 / 9)); border: 0; border-radius: 0; }
.layar-overlay { position: absolute; right: 3%; bottom: 4%; width: min(46%, 560px); display: flex; flex-direction: column; gap: 12px; }
.layar-overlay .card { background: rgba(32, 29, 24, .96); }

@media (max-width: 640px) {
  .topbar { padding: 10px 16px; }
  .student { padding: 12px 16px; }
  .prompt { font-size: 18px; }
  .bar { grid-template-columns: minmax(0, 1fr) auto; }
  .bar-track { grid-column: 1 / -1; grid-row: 2; }
  .guru { padding: 12px 16px 32px; }
}