:root {
  color-scheme: light;
  --bg: #f2f4f8;
  --bg-strong: #ffffff;
  --text: #162033;
  --muted: #5e6b84;
  --line: rgba(103, 121, 158, 0.22);
  --glass: rgba(255,255,255,0.62);
  --glass-strong: rgba(255,255,255,0.78);
  --shadow: 0 20px 50px rgba(31, 41, 55, 0.12);
  --accent: #0a84ff;
  --accent-soft: rgba(10, 132, 255, 0.12);
  --success: #16a34a;
  --warn: #d97706;
  --danger: #dc2626;
}
body[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0f1728;
  --bg-strong: #132036;
  --text: #e8edf7;
  --muted: #a3b1c7;
  --line: rgba(179, 198, 235, 0.16);
  --glass: rgba(18, 29, 51, 0.62);
  --glass-strong: rgba(20, 33, 58, 0.82);
  --shadow: 0 20px 60px rgba(1, 6, 18, 0.45);
  --accent: #63aaff;
  --accent-soft: rgba(99, 170, 255, 0.16);
  --success: #4ade80;
  --warn: #f59e0b;
  --danger: #f87171;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top left, rgba(64,145,255,0.18), transparent 30%), radial-gradient(circle at top right, rgba(94,234,212,0.18), transparent 30%), var(--bg);
  color: var(--text);
}
.background-glow { position: fixed; width: 44rem; height: 44rem; filter: blur(100px); pointer-events: none; opacity: 0.5; z-index: 0; }
.glow-a { left: -10rem; top: -16rem; background: rgba(78, 167, 255, 0.24); }
.glow-b { right: -10rem; top: -6rem; background: rgba(125, 211, 252, 0.18); }
.shell { position: relative; z-index: 1; max-width: 1480px; margin: 0 auto; padding: 1.2rem; }
.glass {
  background: linear-gradient(180deg, var(--glass-strong), var(--glass));
  backdrop-filter: blur(22px) saturate(1.25);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.topbar, .tabbar, .panel, .hero-card, .modal-card { border-radius: 24px; }
.topbar { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 1.2rem 1.3rem; margin-bottom: 1rem; }
h1, h2, h3 { margin: 0; }
.eyebrow { margin: 0 0 0.35rem; color: var(--accent); text-transform: uppercase; letter-spacing: 0.12em; font-size: 0.74rem; font-weight: 700; }
.subtle { color: var(--muted); margin: 0.35rem 0 0; line-height: 1.4; }
.top-actions, .inline-actions, .button-grid { display: flex; flex-wrap: wrap; gap: 0.65rem; }
.button-grid { margin-top: 1rem; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
.primary-button, .secondary-button, .chip-button, .icon-button {
  border: 1px solid transparent; border-radius: 999px; padding: 0.68rem 1rem; transition: transform .16s ease, background .16s ease, border-color .16s ease; color: var(--text);
}
.primary-button { background: var(--accent); color: white; box-shadow: 0 10px 24px rgba(10,132,255,0.22); }
.secondary-button { background: var(--accent-soft); border-color: rgba(10,132,255,0.18); }
.chip-button, .pill { background: rgba(255,255,255,0.08); border: 1px solid var(--line); }
.active-chip, .tab-button.active { background: var(--accent-soft); border-color: rgba(10,132,255,0.3); }
button:hover { transform: translateY(-1px); }
.pill { display: inline-flex; padding: 0.45rem 0.8rem; border-radius: 999px; }
.hero-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 1rem; margin-bottom: 1rem; }
.hero-card { padding: 1rem 1.1rem; }
.stats-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.8rem; }
.stat-card { padding: 0.9rem; border-radius: 20px; background: rgba(255,255,255,0.08); border: 1px solid var(--line); }
.stat-value { font-size: 1.6rem; font-weight: 700; }
.tabbar { display: flex; flex-wrap: wrap; gap: 0.6rem; padding: 0.6rem; margin-bottom: 1rem; position: sticky; top: 0.5rem; z-index: 5; }
.tab-button { background: transparent; border: 1px solid transparent; color: var(--text); border-radius: 16px; padding: 0.8rem 1rem; }
.stack { display: grid; gap: 1rem; }
.mini-stack { gap: 0.7rem; }
.section { display: none; }
.active-section { display: block; }
.two-col { display: grid; grid-template-columns: 420px minmax(0,1fr); gap: 1rem; align-items: start; }
.planner-layout { grid-template-columns: 420px minmax(0,1fr); }
.panel { padding: 1rem 1.05rem; }
.panel-head { display:flex; justify-content:space-between; align-items:flex-start; gap:1rem; margin-bottom: 0.9rem; }
.filter-grid { display:grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 0.75rem; }
label { display: grid; gap: 0.32rem; font-size: 0.86rem; color: var(--muted); }
input, select, textarea {
  width: 100%; background: rgba(255,255,255,0.12); border: 1px solid var(--line); color: var(--text); border-radius: 16px; padding: 0.8rem 0.9rem;
}
textarea { resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 2px solid rgba(10,132,255,0.2); border-color: rgba(10,132,255,0.35); }
.tag-cloud { display:flex; flex-wrap:wrap; gap:0.45rem; margin: 0.9rem 0; }
.games-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(270px, 1fr)); gap: 0.9rem; }
.games-grid.list-view { display: grid; grid-template-columns: 1fr; }
.game-card { border-radius: 22px; overflow: hidden; border: 1px solid var(--line); background: linear-gradient(180deg, rgba(255,255,255,0.10), rgba(255,255,255,0.04)); }
.game-card.list { display:grid; grid-template-columns: 180px minmax(0,1fr); }
.game-card img { width:100%; height: 180px; object-fit: cover; display:block; }
.game-card.list img { height: 100%; }
.game-body { padding: 1rem; display:grid; gap: 0.62rem; }
.game-meta, .badge-row { display:flex; flex-wrap:wrap; gap:0.45rem; align-items:center; }
.badge { display:inline-flex; padding:0.28rem 0.6rem; border-radius:999px; border:1px solid var(--line); font-size: 0.74rem; color: var(--muted); }
.badge.accent { color: var(--accent); border-color: rgba(10,132,255,0.25); background: var(--accent-soft); }
.card-actions { display:flex; flex-wrap:wrap; gap:0.45rem; }
.recommended-layout { display:grid; grid-template-columns: 190px minmax(0,1fr); gap: 1rem; }
.recommended-layout img { width:100%; height:100%; object-fit:cover; border-radius:20px; }
.empty-state { color: var(--muted); padding: 1.2rem; border: 1px dashed var(--line); border-radius: 20px; }
.list-card, .tool-card { border-radius: 20px; border: 1px solid var(--line); padding: 0.9rem; background: rgba(255,255,255,0.06); }
.list-card.active-item { outline: 2px solid rgba(10,132,255,0.25); }
.kv { display:grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap:0.7rem; }
.kv-item { border-radius: 18px; padding: 0.75rem; background: rgba(255,255,255,0.06); border: 1px solid var(--line); }
.plan-item, .score-row, .question-row, .history-row { display:grid; gap:0.5rem; border-radius:18px; border:1px solid var(--line); padding:0.85rem; background: rgba(255,255,255,0.04); }
.timer-wrap { display:grid; gap:0.9rem; }
.timer-display { font-size: clamp(3rem, 7vw, 5rem); text-align:center; font-weight: 800; letter-spacing: 0.05em; padding: 1rem; border-radius: 22px; background: rgba(255,255,255,0.06); border: 1px solid var(--line); }
.timer-presets { display:flex; flex-wrap:wrap; gap:0.55rem; }
.tool-grid { display:grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap:0.9rem; }
.result-box { margin-top:0.8rem; border-radius: 18px; border:1px solid var(--line); padding:0.8rem; min-height: 3rem; }
.modal[hidden] { display:none; }
.modal { position: fixed; inset: 0; background: rgba(8, 14, 24, 0.48); backdrop-filter: blur(8px); display:grid; place-items:center; padding:1rem; z-index:50; }
.modal-card { width:min(960px, 100%); max-height: 92vh; overflow:auto; padding:1rem; }
.form-grid { display:grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap:0.8rem; }
.form-grid .full { grid-column: 1 / -1; }
.sticky-panel { position: sticky; top: 5.5rem; }
.leader-only { display:none; }
.is-leader .leader-only { display:inline-flex; }
.hidden { display:none !important; }
.small-text { font-size: 0.83rem; color: var(--muted); }
@media (max-width: 1100px) {
  .hero-grid, .two-col, .planner-layout { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: repeat(2,1fr); }
  .sticky-panel { position: static; }
}
@media (max-width: 720px) {
  .shell { padding: 0.75rem; }
  .topbar { padding: 1rem; flex-direction: column; align-items: stretch; }
  .filter-grid, .form-grid, .kv { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: 1fr; }
  .recommended-layout, .game-card.list { grid-template-columns: 1fr; }
}


.presentation-code { font-size: 2rem; letter-spacing: 0.18em; font-weight: 700; }

.quiz-tool-grid { grid-template-columns: minmax(260px, 320px) minmax(0, 1fr); }
.media-preview { margin-top: 0.75rem; border-radius: 18px; overflow: hidden; border: 1px solid var(--line); background: rgba(255,255,255,0.06); padding: 0.6rem; }
.media-preview img, .media-preview video { width: 100%; max-height: 280px; object-fit: contain; border-radius: 14px; display: block; }
.media-preview audio { width: 100%; }

body.present-body, body.present-view { min-height: 100vh; }
#app { min-height: 100vh; }
.hero { min-height: 100vh; display: grid; align-content: center; justify-items: center; gap: 1.2rem; padding: 3rem; text-align: center; }
.hero .big { font-size: clamp(3.8rem, 10vw, 8rem); font-weight: 800; line-height: 1.02; }
.timer-big { font-size: clamp(6rem, 18vw, 13rem) !important; letter-spacing: 0.04em; }
.scoreboard-grid { width: min(1200px, 100%); gap: 1.2rem; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.scoreboard-team { padding: 1.25rem; background: rgba(255,255,255,0.12); }
.team-name { font-size: clamp(1.5rem, 3vw, 2.4rem); font-weight: 700; }
.scoreboard-score { font-size: clamp(4.5rem, 12vw, 8rem) !important; font-weight: 800; line-height: 0.95; }
.question { font-size: clamp(2rem, 5vw, 3.8rem); max-width: 1200px; line-height: 1.18; }
.options { display: grid; gap: 0.9rem; width: min(1100px, 100%); }
.option { font-size: clamp(1.4rem, 3vw, 2.2rem); padding: 1rem 1.2rem; border-radius: 20px; border: 1px solid var(--line); background: rgba(255,255,255,0.12); }
.answer { font-size: clamp(1.6rem, 4vw, 2.8rem); padding: 1rem 1.2rem; border-radius: 20px; background: rgba(34,197,94,0.14); border: 1px solid rgba(34,197,94,0.3); }
.present-media { width: min(900px, 100%); display: grid; gap: 0.6rem; }
.present-media img, .present-media video { width: 100%; max-height: 48vh; object-fit: contain; border-radius: 22px; display: block; border: 1px solid var(--line); background: rgba(255,255,255,0.08); }
.present-media audio { width: min(720px, 100%); }
.pair-box { min-height: 100vh; display: grid; align-content: center; justify-items: center; gap: 1rem; padding: 2rem; text-align: center; }
.code { font-size: clamp(3rem, 10vw, 6rem); letter-spacing: 0.22em; font-weight: 800; }
.pair-form { display: flex; gap: 0.8rem; flex-wrap: wrap; justify-content: center; }
.pair-input { max-width: 260px; text-transform: uppercase; font-size: 1.6rem; text-align: center; letter-spacing: 0.18em; }
.pair-button { padding: 0.9rem 1.4rem; border-radius: 999px; background: var(--accent); color: white; border: 0; }
body[data-theme="light"] .scoreboard-team,
body[data-theme="light"] .option,
body[data-theme="light"] .plan-item,
body[data-theme="light"] .answer,
body[data-theme="light"] .present-media img,
body[data-theme="light"] .present-media video { color: var(--text); }
body[data-theme="light"] .hero { background: transparent; }


.icon-only { min-width: 2.8rem; padding: 0.68rem 0.82rem; justify-content: center; }
.icon-only span { font-size: 1rem; }
.card-actions .icon-only { border-radius: 16px; }
.library-group { border: 1px solid var(--line); border-radius: 18px; padding: 0.7rem 0.8rem; background: rgba(255,255,255,0.05); }
.library-group summary { cursor: pointer; font-weight: 700; margin-bottom: 0.6rem; }
.library-group[open] summary { margin-bottom: 0.8rem; }
.score-custom-input { width: 5.2rem; text-align: center; }
.score-value-inline { font-size: 2rem; font-weight: 800; }
.quiz-question-preview { display: grid; gap: 0.8rem; }
body[data-theme="light"] .scoreboard-screen .scoreboard-team,
body[data-theme="light"] .scoreboard-screen .scoreboard-score,
body[data-theme="light"] .scoreboard-screen .team-name { color: var(--text); }

.auth-summary {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.2rem;
  min-width: 12rem;
}

.auth-label {
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

#authStatus {
  font-weight: 700;
  font-size: 0.98rem;
  line-height: 1.2;
  text-align: right;
}

.icon-theme-button {
  min-width: 2.75rem;
  font-size: 1.15rem;
  padding-inline: 0.8rem;
}

.colour-picker-control { display:grid; gap:0.35rem; }
.colour-input-row { display:flex; align-items:center; gap:0.7rem; }
.colour-swatch { width:2rem; height:2rem; border-radius:999px; background:var(--swatch, #7c3aed); border:2px solid rgba(255,255,255,0.7); box-shadow:0 8px 20px rgba(15,23,42,0.16); flex:0 0 auto; }
.colour-hex { max-width:7.5rem; text-transform:uppercase; letter-spacing:0.04em; }
.quiz-theme-preview { margin-top:0.2rem; }
.theme-preview-card { border-radius:20px; padding:1rem 1.1rem; border:1px solid rgba(255,255,255,0.22); box-shadow:0 16px 42px rgba(15,23,42,0.14); display:grid; gap:0.5rem; }
.theme-preview-card.dark { color:#f8fafc; }
.theme-preview-card.light { color:#0f172a; }
.theme-preview-title { font-size:1.3rem; font-weight:800; }
.theme-preview-sub { font-size:0.95rem; line-height:1.45; }
.brand-logo-preview { margin-top:0.75rem; display:flex; align-items:center; justify-content:flex-start; }
.brand-logo-preview img { max-height:72px; max-width:220px; object-fit:contain; border-radius:16px; background:rgba(255,255,255,0.7); padding:0.45rem 0.6rem; box-shadow:0 10px 24px rgba(15,23,42,0.12); }
.brand-logo-preview.inline { margin:0.4rem 0 0.1rem; }
.quiz-screen-logo { margin-bottom:0.65rem; display:flex; justify-content:center; }
.quiz-screen-logo img { max-width:240px; max-height:92px; object-fit:contain; filter:drop-shadow(0 12px 24px rgba(15,23,42,0.22)); }