/* /historybowl/: History Bowl Study. Loads after /style.css and
   /play/play.css and uses their tokens, header, tiers and buttons. The look
   is a library reading room: banker's-lamp green, brass numerals on an old
   scoreboard, and the question on a paper card. */

:root{
  --lamp:#1f4a37;      /* white on it 10.1:1 */
  --lamp-lit:#2c6249;  /* white on it 7.0:1 */
  --lamp-deep:#14321f;
  --brass:#c9a24a;     /* ink on it 6.9:1 */
  --brass-lit:#dcb860;
  --brass-text:#f0d58c;/* on lamp-deep 10.9:1 */
  --card:#fbf8ef;
  --card-rule:#e3dcc6;
  --mark:#9b2c1d;      /* on card 7.0:1 */
  --ok:#1d6b3f;
  --no:#9b2c1d;
}

.hb .tier:hover .tier-name{color:var(--lamp-lit)}
.hb .tier:focus-visible,
.hb .btn:focus-visible{outline-color:var(--lamp-lit)}

/* Headings take focus when a screen changes; the move is announced, no ring needed. */
.hb h1[tabindex="-1"]:focus{outline:none}
.buzz-dock[hidden]{display:none}

.btn-lamp{background:var(--lamp);border-color:var(--lamp);color:#fff}
.btn-lamp:hover{background:var(--lamp-lit);border-color:var(--lamp-lit)}
.hb .btn-quiet:hover{color:var(--lamp-lit);border-color:var(--lamp-lit)}
.btn-small{min-height:44px;padding:.4rem .9rem;font-size:.88rem}

/* The scoreboard: brass numerals on a dark green panel */
.board{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:2px;
  padding:2px;
  margin:0 0 1rem;
  border-radius:3px;
  background:var(--brass);
  box-shadow:0 1px 2px rgba(20,50,31,.3),0 6px 16px rgba(20,50,31,.15);
}
.board-home{margin:0 0 1.6rem;max-width:34rem}
.board-cell{
  display:flex;
  flex-direction:column;
  align-items:center;
  padding:.45rem .3rem .5rem;
  background:linear-gradient(180deg,var(--lamp),var(--lamp-deep));
  border-radius:2px;
  min-width:0;
}
.board-label{
  font-size:.72rem;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:#d9e5dc;
}
.board-num{
  font-family:Spectral,Georgia,serif;
  font-weight:600;
  font-size:clamp(1.35rem,5vw,1.8rem);
  line-height:1.1;
  color:var(--brass-text);
  font-variant-numeric:tabular-nums;
  white-space:nowrap;
}
.board-clock .board-num.urgent{color:#ffb4a6}

/* Settings */
.settings{margin:1.8rem 0 0;max-width:var(--measure);border-top:1px solid var(--rule);padding-top:.4rem}
.settings summary{
  min-height:44px;
  display:flex;
  align-items:center;
  cursor:pointer;
  font-family:Spectral,Georgia,serif;
  font-weight:600;
  font-size:1.12rem;
}
.settings summary:focus-visible{outline:2px solid var(--lamp-lit);outline-offset:3px}
.settings-form fieldset{border:0;margin:0 0 1.1rem;padding:0;min-width:0}
.settings-form legend{font-weight:500;margin:0 0 .3rem;padding:0}
.legend-note{font-weight:400;color:var(--ink-soft);font-size:.88rem}
.check{display:flex;gap:.6rem;align-items:center;min-height:44px;cursor:pointer}
.check input{width:1.2rem;height:1.2rem;margin:0;flex:none;accent-color:var(--lamp)}
.check-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(11rem,1fr));column-gap:1rem}
.slider-row{display:grid;grid-template-columns:minmax(0,13rem) 1fr 4.5rem;gap:.8rem;align-items:center;margin:0 0 .6rem}
.slider-row input{height:44px;accent-color:var(--lamp);min-width:0}
.slider-row output{font-variant-numeric:tabular-nums;text-align:right;color:var(--ink-soft)}

/* Reading */
.q-meta{margin:0 0 .5rem;font-size:.88rem;color:var(--ink-soft);min-height:1.5em}
.badge{
  display:inline-block;
  padding:.05rem .45rem;
  margin-right:.4rem;
  border:1px solid currentColor;
  border-radius:2px;
  font-size:.78rem;
  letter-spacing:.04em;
  text-transform:uppercase;
}
.badge-ai{color:var(--mark)}
.q-card{
  position:relative;
  padding:1.1rem 1.2rem 1rem;
  min-height:9rem;
  background:var(--card);
  border:1px solid var(--card-rule);
  border-left:4px solid var(--brass);
  border-radius:2px;
  box-shadow:0 1px 2px rgba(19,35,60,.06);
}
.q-text{
  margin:0;
  font-family:Spectral,Georgia,serif;
  font-size:clamp(1.25rem,3.6vw,1.4rem);
  line-height:1.55;
  overflow-wrap:break-word;
}
.q-text .caret{display:inline-block;width:.5em;height:1em;margin-left:.1em;vertical-align:-.12em;background:var(--brass)}
.q-text .caret.blink{animation:caret 1s steps(1) infinite}
@keyframes caret{50%{opacity:0}}
.q-card .game-status{margin:.6rem 0 0}
.q-card.paused .q-text{color:var(--ink-soft)}

.answer-form{margin:1rem 0 0}
.answer-label{display:block;font-weight:500;margin:0 0 .35rem}
.answer-row{display:flex;gap:.6rem}
.answer-input{
  flex:1 1 auto;
  min-width:0;
  min-height:48px;
  padding:.5rem .75rem;
  border:1px solid var(--ink-soft);
  border-radius:2px;
  background:#fff;
  color:var(--ink);
  font:inherit;
  font-size:1.15rem;
}
.answer-input:focus-visible{outline:2px solid var(--lamp-lit);outline-offset:2px}
.timebar{height:6px;margin:.5rem 0 0;background:var(--card-rule);border-radius:3px;overflow:hidden}
.timebar-fill{display:block;height:100%;width:100%;background:var(--lamp);transform-origin:left center}

.read-controls{display:flex;flex-wrap:wrap;gap:.6rem;margin:1rem 0 0}

/* The buzzer stays in reach at the bottom of the screen while the text grows. */
.buzz-dock{
  position:sticky;
  bottom:0;
  margin:1rem 0 0;
  padding:.6rem 0 calc(.6rem + env(safe-area-inset-bottom));
  background:linear-gradient(180deg,rgba(238,240,243,0),var(--paper) 30%);
}
.buzz{
  display:block;
  width:100%;
  min-height:clamp(96px,22vh,180px);
  border:3px solid var(--lamp-deep);
  border-radius:10px;
  background:radial-gradient(circle at 50% 35%,var(--brass-lit),var(--brass) 70%);
  color:var(--lamp-deep);
  font-family:Spectral,Georgia,serif;
  font-weight:600;
  font-size:clamp(2rem,8vw,2.8rem);
  letter-spacing:.06em;
  text-transform:uppercase;
  cursor:pointer;
  box-shadow:0 5px 0 var(--lamp-deep);
  touch-action:manipulation;
  -webkit-tap-highlight-color:transparent;
  user-select:none;
  -webkit-user-select:none;
}
.buzz:active{transform:translateY(4px);box-shadow:0 1px 0 var(--lamp-deep)}
.buzz:focus-visible{outline:3px solid var(--lamp-lit);outline-offset:3px}
.buzz:disabled{background:var(--card-rule);color:var(--ink-soft);border-color:var(--rule);box-shadow:none;cursor:default;transform:none}

/* Result */
.result-title{
  font-family:Spectral,Georgia,serif;
  font-weight:600;
  font-size:clamp(1.9rem,6vw,2.6rem);
  line-height:1.1;
  margin:0 0 .3rem;
}
.result-title.ok{color:var(--ok)}
.result-title.no{color:var(--no)}
.result-sub{margin:0 0 .9rem;color:var(--ink-soft)}
.result-actions{display:flex;flex-wrap:wrap;gap:.6rem;margin:0 0 1rem}
.result-actions .btn[hidden]{display:none}
.answer-lines{margin:0 0 1rem;padding:.7rem .9rem;background:var(--card);border-left:3px solid var(--brass)}
.answerline{margin:0;font-size:1.02rem}
.answerline u{text-decoration-thickness:2px;text-underline-offset:3px}
.answer-main{margin:0 0 1.4rem;font-family:Spectral,Georgia,serif;font-size:1.45rem;font-weight:600}
.answer-main-label{
  font-family:"IBM Plex Sans",system-ui,sans-serif;
  font-size:.75rem;
  font-weight:500;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--ink-soft);
  vertical-align:.25em;
}

.clue-title{font-family:Spectral,Georgia,serif;font-weight:600;font-size:1.25rem;margin:0 0 .2rem}
.clue-help{margin:0 0 .6rem;font-size:.92rem;color:var(--ink-soft)}
.clues{background:var(--card);border:1px solid var(--card-rule);border-radius:2px;padding:.4rem}
.clue{
  display:block;
  width:100%;
  min-height:44px;
  padding:.55rem .7rem;
  border:0;
  border-radius:2px;
  background:none;
  color:var(--ink);
  font-family:Spectral,Georgia,serif;
  font-size:1.12rem;
  line-height:1.5;
  text-align:left;
  cursor:pointer;
}
.clue + .clue{border-top:1px dashed var(--card-rule)}
.clue:hover{background:#f2ecd9}
.clue:focus-visible{outline:2px solid var(--lamp-lit);outline-offset:-2px}
.clue.carded{background:#e6efe8}
.clue.carded::after{content:" \2713 carded";font-family:"IBM Plex Sans",system-ui,sans-serif;font-size:.8rem;color:var(--ok)}
.clue.unheard{color:var(--ink-soft)}
.buzz-mark{
  display:inline-block;
  margin:0 .25em;
  padding:0 .35em;
  border-radius:2px;
  background:var(--mark);
  color:#fff;
  font-family:"IBM Plex Sans",system-ui,sans-serif;
  font-size:.72rem;
  font-weight:500;
  letter-spacing:.06em;
  text-transform:uppercase;
  vertical-align:.15em;
}

.card-editor{margin:1rem 0 0;padding:1rem;background:var(--card);border:1px solid var(--brass)}
.card-editor label{display:block;font-weight:500;margin:0 0 .3rem}
.card-editor textarea,
.card-editor input,
.report-form textarea{
  display:block;
  width:100%;
  margin:0 0 .8rem;
  padding:.5rem .7rem;
  border:1px solid var(--ink-soft);
  border-radius:2px;
  background:#fff;
  color:var(--ink);
  font:inherit;
  font-size:1rem;
}
.card-editor textarea:focus-visible,
.card-editor input:focus-visible,
.report-form textarea:focus-visible{outline:2px solid var(--lamp-lit);outline-offset:2px}

.q-source{margin:1.4rem 0 .4rem;font-size:.88rem;color:var(--ink-soft)}
.report-form{margin:.6rem 0 0;max-width:34rem}
.report-form label{display:block;font-size:.92rem;margin:0 0 .3rem}
.next-row{margin:1.4rem 0 0}
.btn-next{min-width:12rem}

/* Stats */
.stats-filter{display:flex;gap:.8rem;align-items:center;margin:0 0 1.2rem}
.stats-filter select{min-height:44px;padding:.3rem .6rem;font:inherit;border:1px solid var(--ink-soft);border-radius:2px;background:#fff;color:var(--ink)}
.stats-filter select:focus-visible{outline:2px solid var(--lamp-lit);outline-offset:2px}
.stats-block{margin:0 0 1.6rem;overflow-x:auto}
.stats-block h2{font-family:Spectral,Georgia,serif;font-weight:600;font-size:1.2rem;margin:0 0 .4rem}
.stats-table th.num{text-align:right}
.stats-table td.bar-cell{width:28%;min-width:5rem}
.acc-bar{display:block;height:8px;background:var(--card-rule);border-radius:4px;overflow:hidden}
.acc-bar span{display:block;height:100%;background:var(--lamp)}
.file-btn{display:inline-flex;align-items:center}
.file-btn:focus-within{outline:2px solid var(--lamp-lit);outline-offset:3px}

/* Weakest areas */
.weak{margin:1.8rem 0 0;max-width:var(--measure)}
.weak-title{font-family:Spectral,Georgia,serif;font-weight:600;font-size:1.2rem;margin:0 0 .5rem}
.weak-list{margin:0 0 .6rem;padding-left:1.4rem}
.weak-list[hidden]{display:none}
.weak-list li{margin:0 0 .45rem}
.weak-name{display:block;font-weight:500}
.weak-detail{display:block;font-size:.88rem;color:var(--ink-soft);font-variant-numeric:tabular-nums}
.weak-note{margin:0 0 .8rem;font-size:.88rem;color:var(--ink-soft)}
.focus-note{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.4rem .8rem;
  margin:0 0 .6rem;
  padding:.4rem .7rem;
  background:#e6efe8;
  border-left:3px solid var(--lamp);
  font-size:.92rem;
}
.focus-note[hidden]{display:none}
.stats-split{display:grid;grid-template-columns:minmax(0,14rem) 1fr;gap:.3rem 1rem;margin:0 0 1.4rem;max-width:var(--measure)}
.stats-split dt{font-weight:500}
.stats-split dd{margin:0;color:var(--ink-soft);font-variant-numeric:tabular-nums}

/* Fixing tags */
.fix{margin:.4rem 0 0}
.fix-form{margin:.6rem 0 0;padding:.9rem 1rem;max-width:34rem;background:var(--card);border:1px solid var(--card-rule)}
.fix-help{margin:0 0 .7rem;font-size:.88rem;color:var(--ink-soft)}
.fix-grid{display:grid;grid-template-columns:7rem 1fr;gap:.5rem .8rem;align-items:center;margin:0 0 .8rem}
.fix-grid select{min-height:44px;min-width:0;padding:.3rem .5rem;font:inherit;border:1px solid var(--ink-soft);border-radius:2px;background:#fff;color:var(--ink)}
.fix-grid select:focus-visible{outline:2px solid var(--lamp-lit);outline-offset:2px}

/* Flashcard review */
.q-card.flash{min-height:6rem}
.flash-back{margin:1rem 0 0}
.flash-back .answer-main{margin:0 0 .4rem}
.r-hint{margin:0 0 .8rem;color:var(--ink-soft);min-height:0}
.rate-help{margin:0 0 .4rem;font-weight:500}
.rate-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:.5rem}
.rate{display:flex;flex-direction:column;align-items:center;gap:.1rem;min-height:64px;padding:.5rem .3rem;background:#fff;color:var(--ink);border-color:var(--rule)}
.rate:hover{background:var(--card);color:var(--ink);border-color:var(--lamp-lit)}
.rate-name{font-weight:500}
.rate-gap{font-size:.82rem;color:var(--ink-soft);font-variant-numeric:tabular-nums}
.rate-again{border-color:var(--mark)}
.rate-good{border-color:var(--lamp);border-width:2px}
.card-tools{display:flex;flex-wrap:wrap;gap:.6rem;margin:1.2rem 0 0}
.card-tools .btn[hidden]{display:none}
.review-empty-text{font-size:1.05rem;max-width:var(--measure)}
.deck-offer{margin:1.6rem 0 0;max-width:var(--measure)}
.deck-offer[hidden],#review-card[hidden],#review-empty[hidden]{display:none}

@media (max-width:640px){
  .stats-split{grid-template-columns:1fr;gap:.1rem}
  .stats-split dd{margin:0 0 .5rem}
  .fix-grid{grid-template-columns:1fr;gap:.2rem}
  .fix-grid select{margin:0 0 .4rem}
}

/* Match simulator */
.strength{border:0;margin:0 0 1rem;padding:0;max-width:var(--measure)}
.strength legend{font-weight:500;margin:0 0 .5rem;padding:0}
.preset-row{display:flex;flex-wrap:wrap;gap:.5rem;margin:0 0 .8rem}
.sim-preset[aria-pressed="true"]{background:var(--lamp);border-color:var(--lamp);color:#fff}
.board-num.board-small{font-size:clamp(1.05rem,4vw,1.4rem);line-height:1.5}
.cat-row{display:grid;gap:.6rem;margin:1rem 0 0}
.cat-row[hidden]{display:none}
.cat-pick{min-height:56px;font-size:1.05rem}
.cat-pick:disabled{background:var(--card-rule);border-color:var(--rule);color:var(--ink-soft)}
.ruling{margin:1rem 0 0;padding:.8rem 1rem;background:var(--card);border-left:4px solid var(--lamp)}
.ruling[hidden]{display:none}
.ruling-text{margin:0 0 .4rem;font-weight:500}
.ruling-answer{margin:0 0 .8rem}
.ruling .btn[hidden]{display:none}
.review-list{display:grid;gap:.5rem}
.review-item{background:var(--card);border:1px solid var(--card-rule);border-radius:2px}
.review-item summary{display:flex;flex-wrap:wrap;gap:.2rem .6rem;align-items:baseline;min-height:44px;padding:.55rem .7rem;cursor:pointer}
.review-item summary:focus-visible{outline:2px solid var(--lamp-lit);outline-offset:-2px}
.review-item .clues{border:0;border-top:1px solid var(--card-rule);border-radius:0}
.review-num{color:var(--ink-soft);font-variant-numeric:tabular-nums}
.review-answer{font-family:Spectral,Georgia,serif;font-weight:600;font-size:1.08rem}
.review-who{margin-left:auto;font-size:.85rem;color:var(--ink-soft)}
.review-note{margin:0;padding:.4rem .7rem;font-size:.85rem;color:var(--ink-soft)}
.buzz-mark.cpu-mark{background:var(--ink-soft)}
#s-fast[hidden],#s-pause[hidden],#s-pass[hidden]{display:none}

/* Lightning overrule on the break screen */
.review-actions{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem .8rem;padding:.5rem .7rem;border-top:1px solid var(--card-rule)}
.review-said{font-size:.9rem;color:var(--ink-soft)}

/* Starter deck page */
.deck-summary{margin:0 0 .4rem;font-weight:500}
.deck-list{margin:0;padding:0;list-style:none;display:grid;gap:.5rem;max-width:var(--measure)}
.deck-row{padding:.6rem .8rem;background:var(--card);border:1px solid var(--card-rule);border-radius:2px}
.deck-row.deleted{opacity:.6}
.deck-row.deleted .deck-front,.deck-row.deleted .deck-back{text-decoration:line-through}
.deck-head{display:flex;gap:.6rem;margin:0 0 .2rem;font-size:.85rem;color:var(--ink-soft)}
.deck-front{margin:0 0 .2rem;font-family:Spectral,Georgia,serif;font-size:1.08rem;line-height:1.45}
.deck-back{margin:0 0 .4rem;font-weight:500}
.deck-actions{display:flex;gap:.5rem}
.deck-edit label{display:block;font-weight:500;margin:.4rem 0 .2rem}
.deck-edit textarea,.deck-edit input{display:block;width:100%;padding:.45rem .6rem;border:1px solid var(--ink-soft);border-radius:2px;background:#fff;color:var(--ink);font:inherit;margin:0 0 .5rem}
.deck-edit textarea:focus-visible,.deck-edit input:focus-visible{outline:2px solid var(--lamp-lit);outline-offset:2px}

/* Team passcode */
.team-form{margin:1rem 0 0;padding:1rem 0 0;border-top:1px solid var(--rule)}
.team-form label{display:block;font-weight:500;margin:0 0 .2rem}
.team-form .btn[hidden]{display:none}

@media (max-width:640px){
  .slider-row{grid-template-columns:1fr 4rem}
  .slider-row label{grid-column:1 / -1}
  .q-card{padding:.9rem .9rem .8rem}
  .read-controls .btn{flex:1 1 0}
  .board-label{font-size:.66rem;letter-spacing:.08em}
}

@media (prefers-reduced-motion:reduce){
  .q-text .caret.blink{animation:none}
  .buzz:active{transform:none}
}