:root {
  --paper: var(--canvas);
  --sheet: var(--surface);
  --ink: var(--text);
  --board: var(--accent);
  --copper: var(--accent);
  --copper-light: var(--raised);
  --control: 6px;
  font: 16px/1.5 system-ui, sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); }
button, input, select { font: inherit; }
a { color: inherit; text-underline-offset: 4px; }
[hidden] { display: none !important; }
:focus-visible { outline: 3px solid var(--copper); outline-offset: 3px; }
button, .button {
  display: inline-flex; justify-content: center; align-items: center; gap: 8px;
  min-height: 44px; padding: 8px 16px; border: 1px solid var(--line); border-radius: var(--control);
  background: var(--sheet); color: var(--ink); font-weight: 650; text-decoration: none;
  cursor: pointer; transition: background-color 120ms ease-out, border-color 120ms ease-out;
}
button:hover:not(:disabled), .button:hover { background: var(--hover); border-color: var(--line); }
button:disabled { opacity: .55; cursor: default; }
.primary { background: var(--board); color: var(--on-accent); border-color: var(--board); }
.primary:hover:not(:disabled) { background: var(--accent); border-color: var(--accent); filter: brightness(.86); }
.skip { position: absolute; top: -80px; left: 12px; z-index: 10; background: var(--board); color: var(--on-accent); padding: 8px 12px; }
.skip:focus { top: 8px; }

.topbar, .site-footer {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 16px max(24px, calc((100% - 1080px) / 2)); border-bottom: 1px solid var(--line);
}
.wordmark { display: inline-flex; align-items: center; gap: 8px; font-weight: 750; text-decoration: none; }
.wordmark svg { width: 32px; height: 32px; fill: var(--paper); stroke: var(--board); stroke-width: 2; }
.wordmark small { color: var(--muted); margin-left: 4px; font-weight: 450; }
.home-link { font-size: 13px; color: var(--muted); }
main { max-width: 1128px; min-height: 74vh; margin: auto; padding: 40px 24px 56px; }
.site-footer { border-bottom: 0; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.site-footer span:first-child { font-weight: 650; }

.entry-grid {
  display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(0, 1fr);
  grid-template-areas: "hero join" "chips host"; gap: 28px 56px; align-items: start;
}
.hero { grid-area: hero; align-self: center; }
.eyebrow { margin: 0 0 8px; color: var(--copper); font: 650 13px/1.5 ui-monospace, Consolas, monospace; }
.hero h1, .room-header h1 {
  margin: 0; font-family: Georgia, Cambria, serif; font-weight: 600; line-height: 1.04;
}
.hero h1 { font-size: clamp(50px, 7.2vw, 92px); letter-spacing: -.055em; }
.hero p:last-child { max-width: 37ch; margin: 16px 0 0; color: var(--muted); font-size: 17px; }
.join-panel, .host-panel { border-top: 2px solid var(--board); padding-top: 16px; }
.join-panel { grid-area: join; }
.host-panel { grid-area: host; border-top: 1px solid var(--line); }
.join-panel h2, .host-panel h2, .panel h2, .chip-board h2 {
  margin: 0 0 8px; font-size: clamp(22px, 3vw, 30px); font-weight: 680; line-height: 1.18;
}
.join-panel > p, .host-panel > p, .panel > p:not(.eyebrow), .muted { color: var(--muted); }
.join-panel > p, .host-panel > p, .panel > p:not(.eyebrow) { margin: 0 0 16px; }
form { display: grid; gap: 8px; }
form > label:not(.check) { margin-top: 4px; }
label { display: block; font-size: 13px; font-weight: 650; }
input:not([type=checkbox]), select {
  display: block; width: 100%; min-width: 0; min-height: 44px;
  padding: 8px 12px; border: 1px solid var(--line-strong); border-radius: var(--control);
  background: var(--sheet); color: var(--ink);
}
input::placeholder { color: var(--muted); opacity: 1; }
#pin { font-variant-numeric: tabular-nums; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.form-grid > div:first-child { grid-column: 1 / -1; }
.form-grid label { margin-bottom: 4px; }
.check { display: flex; align-items: center; gap: 8px; min-height: 32px; }
.check input { accent-color: var(--board); width: 16px; height: 16px; margin: 0; }
form .primary { justify-self: start; margin-top: 4px; }
.chip-board {
  grid-area: chips; padding: 20px 24px; background: var(--sheet);
  border: 1px solid var(--line); border-top: 4px solid var(--copper); border-radius: 0 0 8px 8px;
}
.chip-board > p { margin: 0; color: var(--muted); font-size: 14px; }
.chip-legend { margin: 16px 0; }
.chip-legend > div {
  display: grid; grid-template-columns: 96px minmax(0, 1fr); align-items: center;
  min-height: 36px; border-bottom: 1px solid var(--line); gap: 8px;
}
.chip-legend dt { color: var(--muted); font-variant-numeric: tabular-nums; font-size: 13px; }
.chip-legend dd { display: flex; align-items: center; gap: 8px; margin: 0; font-weight: 650; }
.chip-legend img, .chip-reward img { width: 16px; height: 16px; filter: var(--icon-filter); }
.chip-legend > div:first-child dd { color: var(--copper); }
.chip-board .bonus-rule { max-width: 51ch; }

.room-header { display: flex; justify-content: space-between; align-items: end; gap: 16px; margin-bottom: 24px; }
.room-header h1 { font-size: clamp(32px, 5vw, 56px); letter-spacing: -.035em; }
.badge { flex-shrink: 0; padding: 4px 8px; border: 1px solid var(--line); border-radius: 4px; font: 650 12px/1.5 ui-monospace, Consolas, monospace; }
.pin-board { background: var(--raised); }
.lobby-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: 20px; align-items: start; }
.panel { padding: clamp(16px, 3vw, 28px); border: 1px solid var(--line); border-radius: 8px; background: var(--sheet); }
.pin-code {
  display: block; font: 700 clamp(44px, 7vw, 76px)/1 ui-monospace, Consolas, monospace;
  letter-spacing: .025em; font-variant-numeric: tabular-nums;
}
.invite-pin { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; margin: 16px 0 20px; }
.join-qr { flex-shrink: 0; width: 112px; height: 112px; border-radius: 4px; background: white; }
.invite-actions, .round-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.room-settings { display: flex; flex-wrap: wrap; list-style: none; padding: 16px 0 0; border-top: 1px solid var(--line-strong); gap: 8px 16px; margin: 20px 0 0; }
.room-settings li { color: var(--muted); font-size: 13px; }
.player-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(144px, 100%), 1fr)); list-style: none; padding: 0; margin: 16px 0 0; gap: 8px; }
.player-list li { display: flex; align-items: center; justify-content: space-between; min-height: 44px; gap: 8px; padding: 4px 8px; border: 1px solid var(--line); border-radius: 4px; overflow-wrap: anywhere; }
.player-list button { padding: 4px 8px; min-height: 32px; }
.round-actions { margin-top: 20px; }

.center-stage { min-height: 288px; display: grid; place-items: center; text-align: center; }
.center-stage h2 { margin: 12px 0; }
.countdown-number { display: block; font: 700 clamp(64px, 18vw, 144px)/1 ui-monospace, monospace; color: var(--board); }
.question-head { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: start; gap: 16px; }
.question-head h2 { font: 600 clamp(24px, 4vw, 42px)/1.16 Georgia, Cambria, serif; overflow-wrap: anywhere; }
.clock {
  display: grid; place-items: center; min-width: 56px; height: 48px; border-radius: 4px;
  border: 1px solid var(--line); color: var(--board); font: 700 24px ui-monospace, monospace;
}
.clock.urgent { border-color: var(--copper); color: var(--copper); }
.timer-bar { height: 4px; margin: 16px 0; background: var(--line); border-radius: 4px; overflow: hidden; }
.timer-bar div { height: 100%; background: var(--copper); transform-origin: left; }
.answers { display: grid; gap: 8px; margin-top: 20px; }
.answer {
  display: flex; align-items: center; justify-content: start; gap: 12px;
  min-width: 0; min-height: 56px; padding: 8px 12px; border: 1px solid var(--line);
  border-radius: var(--control); text-align: left; overflow-wrap: anywhere; background: var(--sheet);
}
.answer-letter {
  display: grid; place-items: center; flex-shrink: 0; width: 32px; height: 32px; border-radius: 4px;
  border: 1px solid var(--line); background: var(--raised); color: var(--board); font-weight: 750;
}
.answer.selected { border-color: var(--copper); }
.answer.correct-answer { border-color: var(--positive); background: var(--positive-bg); }
.answer strong { margin-left: auto; flex: 0 0 auto; color: var(--muted); font-size: 12px; }
.bonus-progress { margin: 8px 0 0; color: var(--copper); font-size: 14px; }
.reveal-note, .unlock-banner {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px 16px; padding: 12px 16px; border-radius: 4px; margin-top: 16px;
}
.reveal-note { background: var(--raised); }
.unlock-banner { background: var(--copper-light); border-left: 4px solid var(--copper); }
.reveal-note strong { color: var(--board); }
.streak-readout { display: inline-flex; align-items: center; gap: 12px; font-size: 13px; color: var(--muted); }
.streak-pads { display: inline-flex; align-items: center; gap: 6px; position: relative; }
.streak-pads::before { content: ""; position: absolute; left: 4px; right: 4px; height: 1px; background: var(--line); }
.streak-pads i { position: relative; width: 10px; height: 10px; border-radius: 50%; border: 1px solid var(--line); background: var(--sheet); }
.streak-pads .filled { border-color: var(--copper); background: var(--copper); }
.chip-reward {
  display: inline-flex; align-items: center; gap: 8px; padding: 4px 8px; border-radius: 4px;
  border: 1px solid currentColor; color: var(--chip-ink, var(--rarity-0)); background: var(--chip-paper, var(--surface));
  font-size: 13px; font-weight: 650;
}
.chip-uncommon { --chip-ink: var(--rarity-1); --chip-paper: var(--surface); }
.chip-rare { --chip-ink: var(--rarity-2); --chip-paper: var(--surface); }
.chip-epic { --chip-ink: var(--rarity-3); --chip-paper: var(--surface); }
.chip-gallenero { --chip-ink: var(--rarity-4); --chip-paper: var(--surface); }
#notice, #connection { margin: 0 0 16px; padding: 8px 12px; border-radius: 4px; background: var(--copper-light); color: var(--warning); }
#notice.error { background: var(--danger-bg); color: var(--danger); }
#notice { overflow-wrap: anywhere; }

.podium { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin-bottom: 24px; }
.podium article { padding: 12px; border: 1px solid var(--line); border-radius: 4px; overflow-wrap: anywhere; }
.podium article:first-child { background: var(--selected); border-color: var(--line); }
.podium .rank { display: block; color: var(--board); font: 700 clamp(20px, 4vw, 36px)/1.2 ui-monospace, monospace; }
.podium b { display: block; margin: 4px 0; }
.podium article > span:last-child { color: var(--muted); font-variant-numeric: tabular-nums; font-size: 13px; }
.board { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; text-align: right; }
.board th, .board td { padding: 8px; border-bottom: 1px solid var(--line); }
.board th { color: var(--muted); font-size: 12px; }
.board td:nth-child(3) { font-weight: 650; }
.board th:nth-child(2), .board td:nth-child(2) { text-align: left; overflow-wrap: anywhere; max-width: 15ch; }
.board tr.mine { color: var(--board); background: var(--selected); }
.chip-collection { margin-top: 24px; }
.chip-collection h2 { font-size: 20px; }
.chip-collection div { display: flex; flex-wrap: wrap; gap: 8px; }
.leave { margin-top: 20px; }
.leave button { background: transparent; color: var(--muted); }

@media (max-width: 720px) {
  main { padding: 24px 16px 40px; }
  .topbar, .site-footer { padding: 12px 16px; }
  .entry-grid { grid-template-columns: 1fr; grid-template-areas: "hero" "join" "host" "chips"; gap: 24px; }
  .hero h1 { font-size: clamp(40px, 11vw, 60px); }
  .hero p:last-child { font-size: 15px; margin-top: 12px; }
  .lobby-grid { grid-template-columns: 1fr; gap: 16px; }
  .room-header { align-items: start; }
  .question-head { gap: 8px; }
  .clock { min-width: 44px; height: 40px; font-size: 20px; }
  .board { font-size: 13px; }
  .board th, .board td { padding-inline: 4px; }
  .board td small { display: block; }
  .answer strong { flex-basis: 72px; text-align: right; }
}
@media (max-width: 380px) {
  .form-grid { grid-template-columns: 1fr; }
  .wordmark small { display: none; }
  .podium article { padding: 8px; font-size: 13px; }
  .board { font-size: 12px; }
}
@media (prefers-reduced-motion: reduce) {
  button, .button { transition: none; }
}

.top-controls { display: flex; align-items: center; justify-content: end; flex-wrap: wrap; gap: 8px 16px; }
@media (max-width: 380px) {
  .top-controls { gap: 8px; }
  .top-controls .theme-switch { font-size: 12px; }
}

.join-panel form > p, #pin-hint { margin: 0; color: var(--muted); }
.join-pin-line { display: flex; align-items: center; flex-wrap: wrap; justify-content: space-between; gap: 8px; }
.join-pin-line strong { font: 700 17px ui-monospace, Consolas, monospace; }
.join-pin-line button { background: transparent; }
.project-controls { display: flex; justify-content: end; margin-bottom: 12px; }
.projecting .topbar, .projecting .site-footer { display: none; }
.projecting #arena { max-width: 1448px; }
.projecting #project { border-color: var(--board); }
.projecting .join-qr { width: clamp(112px, 18vw, 180px); height: auto; }
.projecting .pin-code { font-size: clamp(46px, 7vw, 96px); }
.projecting .host-round .answer { font-size: clamp(18px, 2vw, 28px); }

.round-panel .answer-letter { border-color: currentColor; color: var(--rarity-2); }
.round-panel .answer-letter[data-letter="B"] { color: var(--rarity-3); }
.round-panel .answer-letter[data-letter="C"] { color: var(--rarity-4); }
.answer-text { min-width: 0; }
.answer-text small { display: block; color: var(--muted); font-size: 12px; }
.answers-revealed .answer {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  column-gap: 12px;
  row-gap: 6px;
}
.answer-meter { grid-column: 2 / -1; height: 4px; background: var(--line); border-radius: 4px; overflow: hidden; }
.answer-meter span { display: block; height: 100%; background: var(--muted); }
.correct-answer .answer-meter span { background: var(--positive); }
.personal-score {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  padding: 16px;
  margin-bottom: 24px;
  background: var(--raised);
  border: 1px solid var(--line);
  border-radius: 6px;
}
.personal-score small { display: block; color: var(--muted); }
.personal-score strong { display: block; font-size: clamp(19px, 3.5vw, 30px); }
@media (max-width: 540px) {
  .personal-score { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}