/* QuizDat — minimal, editorial. One accent, warm neutrals, lots of air. */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@500;700&display=swap');

:root {
  --paper: #f7f6f2;
  --paper-2: #ffffff;
  --ink: #141414;
  --ink-2: #5c5a55;
  --ink-3: #9a9790;
  --line: #e5e2db;
  --line-2: #d2cfc7;
  --accent: #1d4ed8;
  --accent-ink: #ffffff;
  --good: #1f8f5a;
  --good-bg: #e7f6ee;
  --bad: #c2410c;
  --bad-bg: #fdeee5;
  --o0: #e4573d; --o1: #2b6cf0; --o2: #d99a00; --o3: #2f9e63; --o4: #7c4dff; --o5: #0f9d9a;
  --r: 14px;
  --r-sm: 10px;
  --shadow: 0 1px 2px rgba(20, 20, 20, .04), 0 12px 40px -16px rgba(20, 20, 20, .18);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #121212; --paper-2: #1b1b1b; --ink: #f2f1ed; --ink-2: #b3b0a8; --ink-3: #6f6c65;
    --line: #2a2a2a; --line-2: #3a3a3a; --accent: #6b94ff; --accent-ink: #0b1430;
    --good: #4ade80; --good-bg: #13291d; --bad: #fb923c; --bad-bg: #2d1a0f;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 12px 40px -16px rgba(0,0,0,.7);
    color-scheme: dark;
  }
}
.o0 { --c: var(--o0); } .o1 { --c: var(--o1); } .o2 { --c: var(--o2); }
.o3 { --c: var(--o3); } .o4 { --c: var(--o4); } .o5 { --c: var(--o5); }

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.5 Inter, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-feature-settings: "cv11", "ss01";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1, h2, h3 { margin: 0; line-height: 1.1; letter-spacing: -0.02em; font-weight: 700; }
p { margin: 0; }
a { color: inherit; }
.hidden { display: none !important; }
.muted { color: var(--ink-2); }
.mono { font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace; }
.wrap { max-width: 880px; margin: 0 auto; padding: 32px 20px 120px; }
.row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.spacer { flex: 1; }
.card { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--r); padding: 20px; }
.brand { font-weight: 700; letter-spacing: -0.02em; display: inline-flex; align-items: center; gap: 8px; text-decoration: none; }
.brand::before { content: ""; width: 10px; height: 10px; border-radius: 3px; background: var(--accent); transform: rotate(45deg); }
.brand span { color: var(--ink-2); font-weight: 500; }

/* ---------- controls ---------- */
button, .btn {
  appearance: none; border: 1px solid transparent; cursor: pointer; font: inherit; font-weight: 600;
  border-radius: var(--r-sm); padding: 10px 16px; background: var(--ink); color: var(--paper);
  text-decoration: none; display: inline-flex; align-items: center; gap: 8px; justify-content: center;
  line-height: 1.2; transition: background .15s ease, border-color .15s ease, transform .06s ease, opacity .15s ease;
}
button:hover, .btn:hover { opacity: .88; }
button:active, .btn:active { transform: translateY(1px); }
button:disabled { opacity: .35; cursor: not-allowed; }
button:focus-visible, .btn:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 2px;
}
.primary { background: var(--accent); color: var(--accent-ink); }
.big { font-size: 1.05rem; padding: 14px 24px; border-radius: 12px; }
.ghost { background: transparent; color: var(--ink); border-color: var(--line-2); }
.ghost:hover { background: var(--paper-2); opacity: 1; }
.danger { background: transparent; color: var(--bad); border-color: transparent; }
.danger:hover { background: var(--bad-bg); opacity: 1; }
.icon { padding: 7px 10px; font-size: .9rem; }

input, textarea, select {
  font: inherit; color: var(--ink); background: var(--paper-2); border: 1px solid var(--line-2);
  border-radius: var(--r-sm); padding: 10px 12px; width: 100%;
}
input::placeholder, textarea::placeholder { color: var(--ink-3); }
input:focus, textarea:focus, select:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: transparent; }
textarea { resize: vertical; min-height: 56px; }
label.small { font-size: .8rem; font-weight: 500; color: var(--ink-2); display: block; margin-bottom: 6px; }
.error { color: var(--bad); min-height: 1.4em; font-weight: 500; font-size: .95rem; }

/* ---------- landing ---------- */
.hero { min-height: 100vh; min-height: 100dvh; display: grid; place-items: center; padding: 32px 20px; }
.hero > div { max-width: 640px; width: 100%; }
.hero .eyebrow { color: var(--ink-2); font-weight: 500; margin-bottom: 18px; }
.hero h1 { font-size: clamp(2.6rem, 7vw, 4.5rem); letter-spacing: -0.04em; font-weight: 800; margin-bottom: 32px; }
.hero .lead { color: var(--ink-2); font-size: 1.15rem; margin: 18px 0 36px; max-width: 460px; }
.hero .choices { display: grid; gap: 12px; grid-template-columns: 1fr 1fr; }
.hero .choice { display: flex; align-items: center; justify-content: space-between; gap: 12px; text-decoration: none; padding: 20px 22px; background: var(--paper-2); color: var(--ink); border: 1px solid var(--line); border-radius: var(--r); transition: border-color .15s ease, transform .15s ease; }
.hero .choice:hover { border-color: var(--ink); opacity: 1; transform: translateY(-2px); }
.hero .choice h2 { font-size: 1.1rem; }
.hero .choice .muted { font-size: .95rem; }
.hero .choice .arrow { color: var(--ink-3); transition: transform .15s ease; }
.hero .choice:hover .arrow { transform: translateX(3px); color: var(--ink); }
.hero .foot { margin-top: 40px; color: var(--ink-3); font-size: .85rem; }

/* ---------- editor ---------- */
.editor-top { display: flex; align-items: center; gap: 12px; margin-bottom: 28px; }
.editor-head { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-bottom: 20px; }
.editor-head .title-field { flex: 1 1 320px; }
.editor-head .title-field { position: relative; }
.editor-head .title-field input { font-size: 1.4rem; font-weight: 700; letter-spacing: -0.02em; padding: 10px 28px 10px 0; background: transparent; border: 0; border-bottom: 1px solid transparent; border-radius: 0; cursor: text; transition: border-color .15s ease; }
.editor-head .title-field input:hover { border-bottom-color: var(--line-2); }
.editor-head .title-field input:focus { outline: none; border-bottom-color: var(--accent); }
.editor-head .title-field::after { content: "✎"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%); color: var(--ink-3); font-size: 1rem; pointer-events: none; }
.editor-head .title-field:focus-within::after { display: none; }
.editor-help { color: var(--ink-2); font-size: .9rem; margin: 0 0 28px; }
.qcard { margin-bottom: 14px; padding: 22px; }
.qcard .qhead { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.qcard .qnum { font-weight: 600; font-size: .85rem; color: var(--ink-2); letter-spacing: .04em; text-transform: uppercase; }
.qcard .qkind { font-size: .75rem; font-weight: 600; padding: 3px 8px; border-radius: 999px; background: var(--paper); border: 1px solid var(--line); color: var(--ink-2); }
.qcard textarea { font-size: 1.1rem; font-weight: 600; letter-spacing: -0.01em; }
.opt-row { display: grid; grid-template-columns: 14px 1fr auto; gap: 12px; align-items: center; margin-top: 10px; }
.opt-row .swatch { width: 14px; height: 14px; border-radius: 4px; background: var(--c); font-size: 0; }
.correct-toggle { display: inline-flex; align-items: center; gap: 6px; font-size: .85rem; color: var(--ink-2); cursor: pointer; white-space: nowrap; user-select: none; }
.correct-toggle input { width: 16px; height: 16px; accent-color: var(--good); margin: 0; }
.qfoot { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-top: 14px; }
.qfoot select { width: auto; padding: 7px 10px; font-size: .9rem; }
.add-question { width: 100%; padding: 16px; border-style: dashed; color: var(--ink-2); }
.toolbar {
  position: sticky; bottom: 0; padding: 14px 0 18px; display: flex; gap: 12px; align-items: center; flex-wrap: wrap;
  background: linear-gradient(to top, var(--paper) 70%, transparent);
}

/* ---------- presenter stage ---------- */
.stage { min-height: 100vh; min-height: 100dvh; display: flex; flex-direction: column; padding: 22px clamp(20px, 4vw, 56px) 24px; }
.stage-top { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.stage-top .muted { font-size: .95rem; }
.pill:empty { display: none; }
.pill { border: 1px solid var(--line-2); border-radius: 999px; padding: 6px 12px; font-weight: 500; font-size: .9rem; color: var(--ink-2); background: var(--paper-2); }
.code-pill { font-family: "JetBrains Mono", monospace; letter-spacing: .14em; color: var(--ink); font-weight: 700; }
.stage-main { flex: 1; display: flex; flex-direction: column; justify-content: center; padding: 28px 0; }
.stage-bottom { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.stage-bottom .muted { font-size: .9rem; }

.lobby { display: grid; grid-template-columns: minmax(260px, 400px) 1fr; gap: clamp(28px, 6vw, 96px); align-items: center; max-width: 1100px; margin: 0 auto; width: 100%; }
.qr-box { background: #fff; border-radius: 20px; padding: 18px; aspect-ratio: 1; width: 100%; box-shadow: var(--shadow); border: 1px solid var(--line); }
.qr-box svg { width: 100%; height: 100%; display: block; }
.join-info .step { color: var(--ink-2); font-weight: 500; }
.join-info .url { font-size: clamp(1.05rem, 2vw, 1.45rem); word-break: break-all; font-weight: 500; color: var(--ink-2); margin: 0 0 8px; }
.join-info .code { font-family: "JetBrains Mono", monospace; font-size: clamp(3.4rem, 10vw, 7.5rem); font-weight: 700; letter-spacing: .12em; line-height: 1; margin: 0 0 32px; }
.join-info h3 { font-size: 1rem; font-weight: 600; color: var(--ink-2); }
.players { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; max-height: 36vh; overflow: auto; }
.player-chip { background: var(--paper-2); border: 1px solid var(--line-2); border-radius: 999px; padding: 6px 12px; font-weight: 500; font-size: .95rem; animation: pop .25s ease; cursor: default; }
.player-chip:hover { border-color: var(--bad); color: var(--bad); }
.player-chip.off { opacity: .4; }
@keyframes pop { from { transform: scale(.7); opacity: 0; } to { transform: none; opacity: 1; } }

.q-meta { display: flex; justify-content: center; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 22px; }
.q-title { font-size: clamp(1.8rem, 4.4vw, 3.4rem); font-weight: 700; letter-spacing: -0.03em; text-align: center; margin: 0 auto 36px; max-width: 1000px; text-wrap: balance; }
.timer { font-family: "JetBrains Mono", monospace; font-size: 1.6rem; font-weight: 700; min-width: 64px; height: 44px; padding: 0 14px; border-radius: 999px; display: inline-grid; place-items: center; background: var(--ink); color: var(--paper); align-self: center; margin: 0 0 16px; }
.timer.low { background: var(--bad); color: #fff; }
.opt-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; max-width: 960px; margin: 0 auto; width: 100%; }
.opt-tile { border-radius: var(--r); padding: 20px 22px; font-size: clamp(1.1rem, 2.1vw, 1.5rem); font-weight: 600; letter-spacing: -0.01em; display: flex; gap: 16px; align-items: center; min-height: 84px; background: var(--paper-2); border: 1px solid var(--line); box-shadow: inset 4px 0 0 var(--c); }
.shape { width: 30px; height: 30px; flex: 0 0 30px; border-radius: 8px; background: var(--c); color: #fff; display: grid; place-items: center; font-size: 13px; }

.bars { display: grid; gap: 14px; max-width: 1000px; width: 100%; margin: 0 auto; }
.bar-row { display: grid; grid-template-columns: minmax(160px, 34%) 1fr 110px; gap: 16px; align-items: center; }
.bar-label { font-weight: 600; font-size: clamp(1rem, 1.7vw, 1.3rem); display: flex; gap: 12px; align-items: center; letter-spacing: -0.01em; }
.bar-track { background: var(--paper-2); border: 1px solid var(--line); border-radius: 999px; height: 36px; overflow: hidden; }
.bar-fill { height: 100%; width: 0; border-radius: 999px; background: var(--c); transition: width .9s cubic-bezier(.2,.8,.2,1); }
.bar-row.wrong .bar-fill { opacity: .3; }
.bar-row.wrong .bar-label { color: var(--ink-2); }
.bar-num { font-family: "JetBrains Mono", monospace; font-weight: 700; font-size: clamp(1rem, 1.8vw, 1.35rem); text-align: right; white-space: nowrap; }
.bar-num small { color: var(--ink-3); font-weight: 500; font-size: .72em; margin-left: 8px; }
.check { color: var(--good); font-weight: 700; }

.board { max-width: 680px; width: 100%; margin: 0 auto; display: grid; gap: 8px; }
.board-row { display: grid; grid-template-columns: 48px 1fr auto; align-items: center; gap: 14px; background: var(--paper-2); border: 1px solid var(--line); border-radius: 12px; padding: 14px 18px; font-size: 1.15rem; font-weight: 600; animation: slide .35s ease both; }
.board-row .rank { font-family: "JetBrains Mono", monospace; color: var(--ink-3); font-weight: 500; }
.board-row.r1 { border-color: var(--ink); }
.board-row.r1 .rank { color: var(--ink); }
.board-row span:last-child { font-family: "JetBrains Mono", monospace; font-weight: 700; }
@keyframes slide { from { transform: translateY(8px); opacity: 0; } to { transform: none; opacity: 1; } }

.mini-qr { position: fixed; right: 20px; bottom: 86px; width: 112px; background: #fff; border-radius: 12px; padding: 6px; box-shadow: var(--shadow); border: 1px solid var(--line); z-index: 5; }
.mini-qr svg { display: block; width: 100%; height: auto; }
.mini-qr div { color: #111; text-align: center; font: 700 11px/1.2 "JetBrains Mono", monospace; letter-spacing: .12em; padding: 4px 0 2px; }
.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); background: var(--ink); color: var(--paper); padding: 10px 16px; border-radius: 10px; font-weight: 500; z-index: 10; box-shadow: var(--shadow); }
.kbd { font-family: "JetBrains Mono", monospace; font-size: .75em; border: 1px solid var(--line-2); border-radius: 5px; padding: 1px 6px; color: var(--ink-2); background: var(--paper-2); }

/* ---------- player (phone) ---------- */
.phone { min-height: 100vh; min-height: 100dvh; display: flex; flex-direction: column; padding: 16px 20px 28px; max-width: 520px; margin: 0 auto; }
.phone-top { display: flex; align-items: center; gap: 10px; min-height: 36px; }
.phone-main { flex: 1; display: flex; flex-direction: column; justify-content: center; gap: 18px; padding: 24px 0; }
.phone h1 { font-size: 1.9rem; letter-spacing: -0.03em; margin-bottom: 6px; }
.phone h2 { font-size: 1.35rem; letter-spacing: -0.02em; text-wrap: balance; }
.phone .card { padding: 24px; }
.phone .card h1 { margin-bottom: 16px; }
.name-row { display: flex; gap: 8px; }
.name-row .icon { flex: 0 0 auto; font-size: 1.1rem; padding: 0 14px; }
.phone #code { font-family: "JetBrains Mono", monospace; letter-spacing: .2em; font-weight: 700; font-size: 1.3rem; text-transform: uppercase; }
.center { text-align: center; }
.answer-grid { display: grid; gap: 10px; }
.answer-btn { min-height: 68px; font-size: 1.05rem; font-weight: 600; border-radius: 14px; justify-content: flex-start; text-align: left; padding: 14px 16px; background: var(--paper-2); color: var(--ink); border: 1px solid var(--line); box-shadow: inset 4px 0 0 var(--c); }
.answer-btn:hover { opacity: 1; border-color: var(--line-2); }
.answer-btn.chosen { border-color: var(--ink); box-shadow: inset 4px 0 0 var(--c), 0 0 0 1px var(--ink); }
.answer-btn.dim { opacity: .35; }
.result-good { color: var(--good); }
.result-bad { color: var(--bad); }
.status { font-size: .95rem; color: var(--ink-2); margin-top: 6px; }
.phone .mono { font-size: 1.1rem; color: var(--ink-2); margin-top: 6px; }
.score-box { display: flex; justify-content: center; gap: 8px; flex-wrap: wrap; }
.spinner { width: 28px; height: 28px; border: 3px solid var(--line-2); border-top-color: var(--ink); border-radius: 50%; animation: spin .9s linear infinite; margin: 20px auto; }
@keyframes spin { to { transform: rotate(360deg); } }
.phone .bar-row { grid-template-columns: 1fr 76px; gap: 6px 12px; }
.phone .bar-row .bar-label { grid-column: 1 / -1; font-size: 1rem; }
.phone .shape { width: 24px; height: 24px; flex-basis: 24px; font-size: 11px; border-radius: 6px; }
.phone .bar-track { height: 26px; }
.phone .bar-num { font-size: 1rem; }
.phone .board-row { font-size: 1rem; padding: 12px 14px; }

@media (max-width: 760px) {
  .lobby { grid-template-columns: 1fr; }
  .bar-row { grid-template-columns: 1fr 90px; }
  .bar-row .bar-label { grid-column: 1 / -1; }
  .opt-grid { grid-template-columns: 1fr; }
  .mini-qr { width: 84px; bottom: 96px; }
  .hero .choices { grid-template-columns: 1fr; }
  .stage { padding: 16px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}
.phone #code::placeholder { font-family: Inter, system-ui, sans-serif; font-weight: 400; letter-spacing: normal; text-transform: none; font-size: 1rem; }