:root {
  --bg: #000;
  --text: #f5f5f5;
  --panel-bg: rgba(18, 18, 20, 0.96);
  --accent: #ffcc33;
  --serif: Georgia, "Times New Roman", serif;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
  margin: 0; padding: 0; height: 100%;
  background: #000; color: var(--text);
  font-family: -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  overflow: hidden;
}
body { display: flex; align-items: center; justify-content: center; background: #000; }

/* Tema tanlanganda butun fon (sahna atrofidagi joy ham) o'zgaradi */
body.theme-paper {
  background-color: #e8ddc6;
  background-image: url("assets/paper.jpg");
  background-size: cover;
  background-position: center;
}

/* ===== Sahna ===== */
.stage {
  /* Tema o'zgaruvchilari (standart: qora) */
  --stage-bg: #000;
  --stage-text: #f5f5f5;
  --title-color: var(--accent);
  --fade-color: #000;
  --content-font: Georgia, "Palatino Linotype", Palatino, "Times New Roman", serif;
  --content-weight: 400;
  --content-shadow: 0 2px 12px rgba(0, 0, 0, 0.6);
  /* karaoke stili uchun rang darajalari */
  --kara-active: #ffffff;
  --kara-read: #8a93a5;
  --kara-faint: #444b59;

  position: relative;
  background: var(--stage-bg);
  overflow: hidden;
  cursor: pointer;
}

/* Tema: Krem qog'oz (kitob sahifasi uslubi) */
.stage.theme-paper {
  --stage-bg: #e8ddc6;
  --stage-text: #2a2018;
  --title-color: #3a2c1c;
  --fade-color: #e8ddc6;
  --content-font: Georgia, "Palatino Linotype", Palatino, "Times New Roman", serif;
  --content-weight: 400;
  --content-shadow: 0 1px 0 rgba(255, 255, 255, 0.45);
  --kara-active: #2a2018;
  --kara-read: #7a6a55;
  --kara-faint: #b8a98c;
  /* qog'oz/kanvas teksturasi rasmi (assets/paper.jpg) — agar fayl bo'lmasa krem rang qoladi */
  background-color: var(--stage-bg);
  background-image: url("assets/paper.jpg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
.stage.ratio-9-16 { height: 100vh; aspect-ratio: 9 / 16; width: auto; max-width: 100vw; }
.stage.ratio-16-9 { width: 100vw; aspect-ratio: 16 / 9; height: auto; max-height: 100vh; }

.viewport { position: absolute; inset: 0; overflow: hidden; }
.scroller { position: absolute; left: 0; width: 100%; will-change: transform; }

.content {
  padding: 0 8%;
  text-align: center;
  font-size: 42px;
  line-height: 1.7;
  color: var(--stage-text);
  font-family: var(--content-font);
  font-weight: var(--content-weight);
  white-space: pre-wrap;
  word-break: break-word;
  text-shadow: var(--content-shadow);
}
.content .title {
  color: var(--title-color);
  font-family: var(--serif);
  font-weight: 700;
  margin-bottom: 0.6em;
  display: block;
}
.theme-paper .content .title { font-family: var(--content-font); font-weight: 600; }

/* ===== Karaoke stili (markazdan oqib, faol paragraf yoritiladi) ===== */
.stage.karaoke .content { padding-top: 46vh; padding-bottom: 46vh; }
.stage.karaoke .content p,
.stage.karaoke .content .title {
  color: var(--kara-faint);
  transition: color 0.45s ease;
}
.stage.karaoke .content .read { color: var(--kara-read); }
.stage.karaoke .content .active { color: var(--kara-active); }
.content p { margin: 0 0 1.1em 0; }

.fade { position: absolute; left: 0; right: 0; height: 14%; pointer-events: none; z-index: 2; }
.fade-top { top: 0; background: linear-gradient(to bottom, var(--fade-color), transparent); }
.fade-bottom { bottom: 0; background: linear-gradient(to top, var(--fade-color), transparent); }

/* Katta play tugmasi */
.big-play {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 110px; height: 110px;
  border-radius: 50%;
  background: transparent;
  border: none;
  color: var(--title-color);
  cursor: pointer;
  z-index: 3;
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.big-play:hover { transform: translate(-50%, -50%) scale(1.06); }
.big-play.hidden { opacity: 0; pointer-events: none; }

/* Tugash oynasi */
.done-overlay {
  position: absolute; inset: 0;
  z-index: 4;
  display: flex; align-items: center; justify-content: center;
  background: rgba(0, 0, 0, 0.55);
  padding: 20px;
}
.done-card {
  background: rgba(20, 20, 22, 0.96);
  border: 1px solid rgba(255, 204, 51, 0.35);
  border-radius: 18px;
  padding: 30px 26px;
  text-align: center;
  max-width: 360px; width: 100%;
  box-shadow: 0 12px 50px rgba(0, 0, 0, 0.6);
}
.done-card h2 {
  margin: 0 0 12px;
  font-family: var(--serif);
  font-size: 30px;
  color: var(--accent);
}
.done-card p { margin: 0 0 22px; color: #cfcfcf; font-size: 16px; line-height: 1.5; }
.done-actions { display: flex; gap: 12px; justify-content: center; }

/* ===== Yuqori panel ===== */
.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 16px;
  z-index: 20;
  pointer-events: none; /* sahnaga teginish o'tsin */
}
.topbar > * { pointer-events: auto; }

.badge {
  font-family: var(--serif);
  font-size: 16px;
  color: var(--accent);
  border: 1px solid rgba(255, 204, 51, 0.6);
  background: rgba(0, 0, 0, 0.45);
  padding: 7px 14px;
  border-radius: 10px;
  backdrop-filter: blur(4px);
}

.hamburger {
  width: 46px; height: 46px;
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(4px);
  cursor: pointer;
  display: flex; flex-direction: column; gap: 5px;
  align-items: center; justify-content: center;
}
.hamburger span { display: block; width: 22px; height: 2px; background: var(--text); border-radius: 2px; }

/* ===== Sidebar ===== */
.backdrop {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 25;
}
.sidebar {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: 340px; max-width: 88vw;
  background: var(--panel-bg);
  backdrop-filter: blur(10px);
  border-left: 1px solid rgba(255, 255, 255, 0.1);
  z-index: 30;
  display: flex;
  flex-direction: column;
  transition: transform 0.28s ease;
}
.sidebar.closed { transform: translateX(105%); }

.sidebar-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 20px 12px;
  flex: 0 0 auto;
}
.sidebar-head h2 { margin: 0; font-family: var(--serif); font-size: 24px; color: var(--accent); }
.icon-btn {
  background: transparent; border: none; color: var(--text);
  font-size: 22px; cursor: pointer; padding: 4px 8px; border-radius: 8px;
}
.icon-btn:hover { background: rgba(255, 255, 255, 0.08); }

/* Matnlar ro'yxati — balandlikning 40% */
.text-list {
  list-style: none; margin: 0; padding: 4px 12px;
  flex: 0 0 40%;
  overflow-y: auto;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.text-list li {
  display: flex; align-items: center; gap: 12px;
  padding: 13px 12px;
  border-radius: 10px;
  cursor: pointer;
  color: #ddd;
}
.text-list li:hover { background: rgba(255, 255, 255, 0.05); }
.text-list li.active {
  border: 1px solid rgba(255, 204, 51, 0.7);
  background: rgba(255, 204, 51, 0.08);
  color: #fff;
}
.text-list .num { color: var(--accent); font-weight: 700; min-width: 22px; align-self: flex-start; padding-top: 2px; }
.text-list .ttl { flex: 1; display: flex; flex-direction: column; gap: 4px; }
.text-list .t-meta { display: flex; align-items: center; gap: 8px; font-size: 11px; color: #8a8a8a; }
.text-list .lvl {
  padding: 2px 7px; border-radius: 6px; font-weight: 700;
  font-size: 10px; letter-spacing: .04em;
}
.lvl.A1 { background: rgba(90,214,160,.16); color: #5ad6a0; }
.lvl.A2 { background: rgba(255,180,84,.16); color: #ffb454; }
.lvl.B1 { background: rgba(255,122,138,.16); color: #ff7a8a; }
.lvl.B2 { background: rgba(120,160,255,.16); color: #8aa6ff; }
.lvl.C1, .lvl.C2 { background: rgba(200,150,255,.16); color: #c89bff; }
.text-list .check {
  color: #4caf50; font-weight: 700; font-size: 16px;
  width: 18px; text-align: center; opacity: 0;
}
.text-list li.done .check { opacity: 1; }       /* tugatilgan -> yashil galochka */
.text-list li.done .ttl { color: #9fd49f; }

/* Boshqaruv paneli */
.controls {
  padding: 14px 18px;
  display: flex; flex-direction: column; gap: 12px;
  flex: 1 1 auto; min-height: 0;
  overflow-y: auto;
}
.field { display: flex; flex-direction: column; gap: 5px; font-size: 13px; color: #cfcfcf; }
.field.grow { flex: 1; }
.field b { color: var(--accent); }
.field-row { display: flex; align-items: flex-end; gap: 10px; }

/* Tema tanlagich (vizual swatch) */
.theme-switch { display: flex; gap: 10px; }
.theme-opt {
  flex: 1;
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  padding: 7px;
  background: #1b1b1e;
  border: 2px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  cursor: pointer;
  color: #cfcfcf;
  transition: border-color 0.15s ease, transform 0.05s ease;
}
.theme-opt:active { transform: scale(0.97); }
.theme-opt.active { border-color: var(--accent); color: #fff; }
.theme-opt .swatch {
  width: 100%; height: 46px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.15);
}
.swatch-dark { background: #000; }
.swatch-paper { background: #e8ddc6 url("assets/paper.jpg") center/cover; }
.theme-name { font-size: 13px; }

select, input[type="range"], input[type="text"], textarea { accent-color: var(--accent); }
select, input[type="text"], textarea {
  background: #1b1b1e; color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px; padding: 9px 11px; font-size: 14px; width: 100%;
  font-family: inherit;
}
textarea { resize: vertical; }
input[type="range"] { width: 100%; cursor: pointer; }

.btn {
  background: #232327; color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 9px; padding: 11px 14px; font-size: 14px; cursor: pointer;
  white-space: nowrap; transition: background 0.15s ease, transform 0.05s ease;
}
.btn:hover { background: #303036; }
.btn:active { transform: scale(0.98); }
.btn.block { width: 100%; }
.btn.primary { background: var(--accent); color: #1a1a1a; font-weight: 700; border-color: var(--accent); }

.sidebar-actions {
  margin-top: auto;
  padding: 12px 18px 18px;
  display: flex; flex-direction: column; gap: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.io-row { display: flex; gap: 8px; }
.btn.small { flex: 1; padding: 8px 10px; font-size: 13px; }

/* ===== Modal ===== */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.65);
  z-index: 40;
  display: flex; align-items: center; justify-content: center;
  padding: 16px;
}
.modal {
  background: var(--panel-bg);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  padding: 24px;
  width: 100%; max-width: 460px;
  display: flex; flex-direction: column; gap: 14px;
}
.modal h2 { margin: 0; font-family: var(--serif); font-size: 24px; color: var(--accent); }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 4px; }

.hidden { display: none !important; }

/* ===== Mobil ===== */
@media (max-width: 600px) {
  .content { font-size: 38px; padding: 0 6%; }
  .badge { font-size: 14px; }
}