/* Cards Arena: Hand and Trix tables, the Arena/lobby pages and /cards/learn. Builds on cards.css (.pc, .pc-felt). */
:root {
  --ct-team-0: #3fd3b4; --ct-team-1: #f0a35a; --ct-turn: #e8b64c; --ct-bad: #ff8c8c; --ct-good: #7ee0b0;
  --ct-ink: #eef6f1; --ct-ink-soft: rgb(238 246 241 / .75); --ct-chip: rgb(0 0 0 / .22); --ct-chip-hi: rgb(255 255 255 / .1);
}

/* ---------- Table frame ---------- */
.ct-table {
  --pc-w: 3.6rem;
  display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--s3, .75rem); width: 100%; max-width: 64rem; margin-inline: auto;
  padding: var(--s3, .75rem); overflow: clip; position: relative;
  -webkit-user-select: none; user-select: none; -webkit-touch-callout: none; -webkit-tap-highlight-color: transparent;
}
.ct-tips { -webkit-user-select: text; user-select: text; }
.ct-ribbon { display: flex; flex-wrap: wrap; align-items: center; gap: .35rem .75rem; font-size: .85rem; }
.ct-ribbon-name { padding: .15rem .6rem; border-radius: 999px; background: var(--pc-gold); color: #241a05; font-weight: 800; }
.ct-ribbon-round { color: var(--ct-ink-soft); font-weight: 700; white-space: nowrap; }
.ct-ribbon-turn { flex: 1 1 10rem; font-weight: 700; }
.ct-timer { padding: .1rem .55rem; border-radius: 999px; background: var(--ct-chip); font-weight: 800; font-variant-numeric: tabular-nums; }
.ct-timer.low { background: #a8323a; color: #fff; animation: ct-pulse 1s var(--ease) infinite; }
.ct-tips-btn {
  position: relative; flex: none; min-height: 2.25rem; margin-left: auto; padding: 0 .75rem; border-radius: 999px;
  border: 1px solid rgb(232 182 76 / .5); background: rgb(232 182 76 / .16); color: inherit; font-size: .8rem; font-weight: 800;
}
.ct-tips-btn[aria-expanded="true"] { background: var(--pc-gold); color: #241a05; }
.ct-tips-btn.unread::after {
  content: ""; position: absolute; top: -.15rem; right: -.1rem; width: .65rem; height: .65rem; border-radius: 50%;
  background: #ff6b6b; box-shadow: 0 0 0 2px var(--pc-felt); animation: ct-pulse 1.4s var(--ease) infinite;
}
/* Tips: a flyout over the table, not part of it. */
.ct-tips {
  position: absolute; z-index: 20; top: 3rem; right: .5rem; display: grid; gap: .5rem;
  width: min(24rem, calc(100% - 1rem)); max-height: calc(100% - 4rem); overflow-y: auto; padding: .75rem .9rem;
  border-radius: 1rem; background: var(--surface); color: var(--ink); border: 1px solid var(--line);
  box-shadow: 0 18px 40px rgb(0 0 0 / .4); transform-origin: top right; animation: ct-fly 160ms var(--ease);
}
.ct-tips-head { display: flex; align-items: center; justify-content: space-between; }
.ct-tips-coach { display: flex; gap: .5rem; align-items: flex-start; margin: 0; }
.ct-tips-how { margin: 0; padding-top: .5rem; border-top: 1px solid var(--line); font-size: .8rem; color: var(--muted); }
.ct-board-close {
  display: inline-grid; place-items: center; min-height: 0; width: 2.25rem; height: 2.25rem; padding: 0; margin-left: auto;
  border-radius: 50%; border: 0; background: transparent; color: inherit; font-size: 1.3rem; line-height: 1;
}

/* ---------- Opponents ---------- */
/* A strip of player tabs that scrolls sideways when it doesn't fit; tapping one opens that player's cards below. */
.ct-opponents {
  display: flex; gap: .5rem; overflow-x: auto; overscroll-behavior-x: contain; scroll-snap-type: x proximity;
  scrollbar-width: none; padding: 2px;
}
.ct-opponents::-webkit-scrollbar { display: none; }
.ct-seat {
  flex: 1 0 max(9rem, calc((100% - 1.5rem) / 4)); scroll-snap-align: start;
  display: grid; gap: .35rem; align-content: start; justify-content: stretch; min-width: 0; min-height: 0; padding: .5rem;
  border: 1px solid rgb(255 255 255 / .1); border-radius: .75rem; background: var(--ct-chip); color: inherit;
  font-weight: inherit; text-align: left; cursor: pointer;
  transition: box-shadow 160ms var(--ease), border-color 160ms var(--ease), background-color 160ms var(--ease);
}
.ct-seat.on { background: rgb(255 255 255 / .13); border-color: rgb(255 255 255 / .55); }
.ct-seat.ct-seat-fits::after {
  content: "Fits"; justify-self: start; padding: 0 .4rem; border-radius: 999px; background: var(--pc-select); color: #04261e;
  font-size: .62rem; font-weight: 800;
}
.ct-seat.ct-hint { box-shadow: 0 0 0 3px var(--pc-gold), 0 0 14px rgb(232 182 76 / .5); }
.ct-seat-you { flex-grow: 0; }
.ct-seat.turn, .ct-seat.turn.on { border-color: var(--ct-turn); box-shadow: 0 0 0 2px rgb(232 182 76 / .45), 0 0 18px rgb(232 182 76 / .25); }
.ct-seat.away { opacity: .6; }
.ct-seat.ct-team-0 { border-top: 3px solid var(--ct-team-0); }
.ct-seat.ct-team-1 { border-top: 3px solid var(--ct-team-1); }
.ct-seat-head, .ct-you-bar { display: flex; align-items: center; gap: .45rem; min-width: 0; }
.ct-avatar {
  display: grid; place-items: center; flex: none; width: 2rem; height: 2rem; border-radius: 50%;
  background: linear-gradient(150deg, var(--pc-back), var(--pc-back-lo)); color: #fff; font-weight: 800; border: 2px solid rgb(255 255 255 / .5);
}
.ct-pairs .ct-team-0 .ct-avatar, .ct-pairs .ct-you.ct-team-0 .ct-avatar { border-color: var(--ct-team-0); }
.ct-pairs .ct-team-1 .ct-avatar { border-color: var(--ct-team-1); }
.ct-seat-name { display: grid; min-width: 0; line-height: 1.15; }
.ct-seat-name strong { overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.ct-seat-score { font-size: .78rem; color: var(--ct-ink-soft); font-variant-numeric: tabular-nums; }
.ct-badges { display: flex; flex-wrap: wrap; gap: .25rem; min-height: 0; }
.ct-badges:empty { display: none; }
.ct-badge { padding: .05rem .45rem; border-radius: 999px; background: var(--ct-chip-hi); font-size: .7rem; font-weight: 800; }
.ct-badge-partner { background: rgb(63 211 180 / .25); color: #c9fff1; }
.ct-badge-away { background: rgb(255 140 140 / .25); }
.ct-badge-open { background: rgb(232 182 76 / .3); color: #ffe7b0; }
.ct-badge-owner { background: var(--pc-gold); color: #241a05; }
.ct-badge-double { background: rgb(200 50 60 / .45); color: #fff; }
.ct-backs { position: relative; display: flex; align-items: center; height: 2.2rem; padding-left: .2rem; }
.ct-back {
  width: 1.4rem; height: 2rem; margin-left: -.95rem; border-radius: .2rem; border: 1.5px solid var(--pc-paper);
  background: repeating-linear-gradient(45deg, rgb(255 255 255 / .08) 0 3px, transparent 3px 6px), linear-gradient(160deg, var(--pc-back), var(--pc-back-lo));
  box-shadow: 0 1px 2px rgb(0 0 0 / .4); transform: rotate(calc((var(--k) - 3) * 3deg));
}
.ct-back:first-child { margin-left: 0; }
.ct-backs b { margin-left: .45rem; font-size: .9rem; font-variant-numeric: tabular-nums; }
.ct-reveal, .ct-taken { display: flex; flex-wrap: wrap; --pc-w: 2.2rem; }
.ct-reveal .pc, .ct-taken .pc { margin-right: -.9rem; }
.ct-seat-stats { display: flex; gap: .5rem; font-size: .78rem; color: var(--ct-ink-soft); }
.ct-points { color: var(--ct-bad); font-weight: 800; }

/* ---------- Center ---------- */
.ct-center {
  display: grid; gap: .75rem; justify-items: center; min-height: 9rem; padding: .75rem;
  border-radius: 1rem; background: rgb(0 0 0 / .12); box-shadow: inset 0 0 0 1px rgb(255 255 255 / .05);
}
.ct-center-note { margin: 0; text-align: center; color: var(--ct-ink-soft); font-size: .9rem; }
.ct-piles { display: flex; gap: 1.5rem; justify-content: center; }
.ct-pile { display: grid; justify-items: center; gap: .3rem; border-radius: .6rem; padding: .25rem; }
.ct-pile.live .pc:not(:disabled) { box-shadow: 0 0 0 2px rgb(63 211 180 / .7), 0 2px 6px rgb(0 0 0 / .35); }
.ct-pile.ct-hint .pc { box-shadow: 0 0 0 3px var(--pc-gold), 0 0 18px var(--pc-gold); }
.ct-pile-label { font-size: .75rem; font-weight: 700; color: var(--ct-ink-soft); }
.ct-empty-pile {
  display: block; width: var(--pc-w); height: calc(var(--pc-w) * 1.4); border-radius: calc(var(--pc-w) * .1);
  border: 2px dashed rgb(255 255 255 / .3);
}
.ct-board { display: grid; gap: .4rem; align-content: start; width: 100%; min-width: 0; }
.ct-board-title { display: flex; align-items: center; gap: .35rem; margin: 0; font-size: .8rem; color: var(--ct-ink-soft); }
.ct-board-title strong { color: #eef6f1; }
.ct-board-title .ct-board-close { width: 1.9rem; height: 1.9rem; }
.ct-table > .ct-board { padding: .4rem .6rem; border-radius: .75rem; background: rgb(0 0 0 / .12); }
.ct-sets { max-height: 20rem; overflow-y: auto; }
.ct-set-row { display: flex; flex-wrap: wrap; gap: .45rem; }
.ct-set {
  --pc-w: 3rem;
  position: relative; display: inline-flex; align-items: center; min-height: 0; padding: .3rem 1.1rem .3rem .3rem;
  border: 1px solid rgb(255 255 255 / .12); border-radius: .5rem; background: var(--ct-chip); color: inherit; cursor: default;
}
.ct-set .pc { margin-right: calc(var(--pc-w) * -.5); }
.ct-set .pc:last-of-type { margin-right: 0; }
.ct-set.mine { border-color: rgb(63 211 180 / .45); }
.ct-set.ct-set-ok, .ct-set.ct-set-swap { cursor: pointer; border-color: var(--pc-select); box-shadow: 0 0 0 2px rgb(63 211 180 / .45); }
.ct-set.ct-hint { border-color: var(--pc-gold); box-shadow: 0 0 0 3px var(--pc-gold), 0 0 16px rgb(232 182 76 / .6); }
.ct-set:disabled { opacity: 1; }
.ct-set-value {
  position: absolute; right: .15rem; bottom: .15rem; min-width: 1.2rem; padding: 0 .2rem; border-radius: 999px;
  background: var(--pc-gold); color: #241a05; font-size: .65rem; font-weight: 800; text-align: center;
}

/* Trix */
.ct-kingdom { display: grid; gap: .4rem; justify-items: center; text-align: center; }
.ct-kingdom-title { margin: 0; font-size: .9rem; }
.ct-contracts { display: flex; flex-wrap: wrap; justify-content: center; gap: .3rem; }
.ct-contract { padding: .1rem .55rem; border-radius: 999px; background: var(--ct-chip-hi); font-size: .75rem; font-weight: 700; }
.ct-contract.on { background: var(--pc-gold); color: #241a05; }
.ct-contract.done { opacity: .45; text-decoration: line-through; }
.ct-doubled { display: flex; flex-wrap: wrap; align-items: center; gap: .3rem; margin: 0; font-size: .8rem; }
.ct-choose { display: grid; grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr)); gap: .5rem; width: 100%; }
.ct-choose .ct-center-note { grid-column: 1 / -1; }
.ct-choose .button { display: grid; gap: .1rem; height: auto; padding: .5rem .75rem; text-align: left; }
.ct-hint-btn { box-shadow: 0 0 0 3px var(--pc-gold), 0 0 14px rgb(232 182 76 / .55) !important; }
.ct-layout { display: grid; gap: .35rem; width: 100%; }
.ct-layout-row { display: grid; grid-template-columns: 1.6rem minmax(0, 1fr); align-items: center; gap: .4rem; min-height: 2.6rem; }
.ct-suit { font-size: 1.3rem; text-align: center; }
.ct-suit.red { color: #ff8d95; }
/* Each suit's run fans out to fill its cell: cards overlap only as much as they must, rank corners stay
   readable, and the empty slots for the next cards (--s of them) sit clear of the run. */
.ct-layout-cards { --pc-w: 3rem; --slot-w: calc(var(--pc-w) * .62); --sg: .2rem; display: flex; align-items: center; min-width: 0; padding-block: .15rem; }
.ct-layout-cards > * { flex: none; }
.ct-layout-cards > .pc { margin-right: min(calc(var(--pc-w) * -.3), calc((100% - var(--pc-w) * var(--n) - (var(--slot-w) + var(--sg)) * var(--s, 0)) / max(var(--n) - 1, 1))); }
.ct-layout-cards > .ct-slot, .ct-layout-cards > .pc:has(+ .ct-slot) { margin-right: var(--sg); }
.ct-layout-cards > :last-child { margin-right: 0; }
.ct-slot {
  display: grid; place-content: center; justify-items: center; width: var(--slot-w); height: calc(var(--pc-w) * 1.4); border: 2px dashed rgb(255 255 255 / .28);
  border-radius: calc(var(--pc-w) * .12); color: var(--ct-ink-soft); font-size: calc(var(--pc-w) * .3); font-weight: 800; line-height: 1;
}
.ct-slot i { font-style: normal; font-size: .9em; }
.ct-slot.red { color: #ff8d95; }
.ct-slot.live { border-color: var(--pc-select); color: var(--ct-ink); box-shadow: 0 0 0 2px rgb(63 211 180 / .35); }
.ct-slot.ct-hint { border-color: var(--pc-gold); box-shadow: 0 0 0 3px var(--pc-gold), 0 0 14px rgb(232 182 76 / .55); }
.ct-trick {
  position: relative; display: grid; width: min(100%, 16rem); aspect-ratio: 1.15;
  grid-template: ". top ." 1fr "left note right" 1fr ". bottom ." 1fr / 1fr 1fr 1fr; place-items: center;
}
.ct-trick-slot { animation: ct-land 200ms var(--ease); }
.ct-slot-top { grid-area: top; } .ct-slot-bottom { grid-area: bottom; } .ct-slot-left { grid-area: left; } .ct-slot-right { grid-area: right; }
.ct-trick-slot.last { opacity: .7; }
.ct-trick-slot.won { opacity: 1; }
.ct-trick-slot.won .pc { box-shadow: 0 0 0 3px var(--pc-gold), 0 4px 10px rgb(0 0 0 / .4); }
.ct-trick-note { grid-area: note; font-size: .7rem; text-align: center; color: var(--ct-ink-soft); line-height: 1.2; }

/* ---------- Coach + your seat ---------- */
.ct-you { container-type: inline-size; display: grid; gap: .5rem; padding: .5rem; border-radius: 1rem; background: rgb(0 0 0 / .14); border: 1px solid transparent; }
.ct-you.turn { border-color: rgb(232 182 76 / .6); }
.ct-log { flex: 1 1 auto; min-width: 0; margin: 0; font-size: .82rem; color: var(--ct-ink-soft); text-align: right; }
.ct-staged { display: flex; flex-wrap: wrap; gap: .4rem; }
.ct-staged-set {
  --pc-w: 2.2rem;
  position: relative; display: inline-flex; min-height: 0; padding: .3rem 1.2rem .3rem .3rem; border-radius: .5rem;
  border: 1px dashed var(--pc-select); background: rgb(63 211 180 / .12); color: inherit; cursor: pointer;
}
.ct-staged-set .pc { margin-right: -.95rem; }
.ct-staged-set .pc:last-of-type { margin-right: 0; }
.ct-staged-x { position: absolute; top: .1rem; right: .3rem; font-weight: 800; }
.ct-hand {
  display: flex; justify-content: safe center; gap: 0; overflow-x: auto; overscroll-behavior-x: contain;
  padding: .9rem .25rem .4rem; scrollbar-width: thin; -webkit-overflow-scrolling: touch; touch-action: none;
  --n: var(--count, 1); --g: var(--gaps, 0); --gap-w: .4rem;
}
/* The whole hand always fits its row: cards overlap just enough for --n of them (less the suit gaps), and shrink
   only when even showing each card's corner (about a third of it) would not fit. Rows are display: contents
   until the hand splits into two rows. */
.ct-hand-row {
  display: contents;
  --hand-w: calc(100cqw - .5rem - 2px - var(--g) * var(--gap-w));
  --cw: min(var(--pc-w), calc(var(--hand-w) / (var(--n) * .34 + .66)));
}
.ct-hand .pc {
  --w: var(--cw);
  margin-right: min(.25rem, calc((var(--hand-w) - var(--n) * var(--cw)) / max(var(--n) - 1, 1)));
}
.ct-hand .pc.ct-gap { margin-left: var(--gap-w); }
.ct-hand-row:last-child .pc:last-child { margin-right: 0; }
.ct-large .ct-hand { --pc-w: 4.4rem; }
/* Two rows of large cards (8+ cards) so each card is a wide target. */
@container (max-width: 600px) {
  .ct-hand-split { flex-direction: column; align-items: center; gap: .35rem; padding-top: .75rem; --pc-w: 3.5rem; }
  .ct-hand-split .ct-hand-row { display: flex; justify-content: center; --n: var(--per); --g: var(--rgaps, 0); }
  .ct-hand-split .ct-hand-row .pc:last-child { margin-right: 0; }
}
.ct-large .ct-hand-split { flex-direction: column; align-items: center; gap: .35rem; padding-top: .75rem; --pc-w: 4.4rem; }
.ct-large .ct-hand-split .ct-hand-row { display: flex; justify-content: center; --n: var(--per); --g: var(--rgaps, 0); }
.ct-large .ct-hand-split .ct-hand-row .pc:last-child { margin-right: 0; }
.ct-hand .pc.ct-peek { z-index: 2; transform: translateY(-.9rem); box-shadow: 0 0 0 3px var(--pc-gold), 0 8px 16px rgb(0 0 0 / .4); }
.ct-hand .pc.ct-dragging { opacity: .3; }
/* Overlapped cards stay solid when dimmed, so one card never shows through another. */
.ct-hand .pc:disabled { opacity: 1; }
.ct-hand .pc.pc-dim { opacity: 1; filter: brightness(.62) saturate(.55); }
.ct-drop-mark {
  position: fixed; z-index: 999; width: 6px; margin-left: -3px; pointer-events: none; border-radius: 3px;
  background: var(--pc-gold); box-shadow: 0 0 0 2px rgb(36 26 5 / .6), 0 0 14px var(--pc-gold);
}
.ct-drop-mark::before, .ct-drop-mark::after {
  content: ""; position: absolute; left: 50%; translate: -50% 0; border: 7px solid transparent;
}
.ct-drop-mark::before { top: -12px; border-top-color: var(--pc-gold); }
.ct-drop-mark::after { bottom: -12px; border-bottom-color: var(--pc-gold); }
.ct-loupe {
  position: fixed; z-index: 1000; pointer-events: none; padding: .35rem; border-radius: 1rem;
  background: rgb(7 32 25 / .88); box-shadow: 0 10px 28px rgb(0 0 0 / .45);
}
.ct-loupe .pc { --w: 6rem; margin: 0; transform: none; box-shadow: 0 2px 6px rgb(0 0 0 / .3); }
.ct-loupe-lg .pc { --w: 7.5rem; }
.pc.ct-ghost {
  position: fixed; z-index: 1000; margin: 0; pointer-events: none; transition: none;
  transform: rotate(-4deg) scale(1.12); box-shadow: 0 14px 28px rgb(0 0 0 / .45);
}
.ct-drag-card [data-drop="fire"], .ct-drag-card .ct-set:not(:disabled), .ct-drag-card .ct-center[data-drop="play"],
.ct-drag-pile .ct-hand { outline: 2px dashed rgb(63 211 180 / .55); outline-offset: 2px; border-radius: .6rem; }
.ct-drop-over, .ct-drag-card .ct-drop-over, .ct-drag-pile .ct-drop-over { outline: 3px solid var(--pc-select); background-color: rgb(63 211 180 / .14); }
.ct-hand .pc { transition: transform 140ms var(--ease), box-shadow 140ms var(--ease), opacity 140ms var(--ease), margin 140ms var(--ease); }
.ct-hand .pc.ct-hint { box-shadow: 0 0 0 3px var(--pc-gold), 0 0 18px var(--pc-gold); transform: translateY(-.35rem); }
.ct-hand .pc.ct-hint.pc-selected { box-shadow: 0 0 0 3px var(--pc-select), 0 0 18px var(--pc-gold); transform: translateY(-.6rem); }
.ct-hand .pc.ct-drawn::after {
  content: "New"; position: absolute; top: -.55rem; left: 50%; translate: -50% 0; padding: 0 .3rem; border-radius: 999px;
  background: var(--pc-select); color: #04261e; font-size: .55rem; font-weight: 800;
}
.ct-actions { display: grid; gap: .45rem; }
.ct-help { margin: 0; color: var(--ct-ink-soft); }
.ct-warn { color: #ffd38a; font-weight: 700; }
.ct-error { margin: 0; padding: .4rem .6rem; border-radius: .5rem; background: rgb(200 50 60 / .3); color: #fff; font-weight: 700; font-size: .85rem; }
.ct-buttons { display: flex; flex-wrap: wrap; gap: .5rem; }
.ct-buttons .button, .ct-buttons button { flex: 1 1 7rem; }
.ct-buttons .button[aria-disabled="true"] { opacity: .5; }
.ct-open-meter {
  position: relative; height: 1.4rem; overflow: hidden; border-radius: 999px; background: var(--ct-chip);
  display: grid; place-items: center; font-size: .75rem;
}
.ct-open-meter span { position: absolute; inset: 0 auto 0 0; width: var(--fill, 0%); background: linear-gradient(90deg, var(--pc-back), var(--pc-select)); transition: width 200ms var(--ease); }
.ct-open-meter b { position: relative; }

/* Round summary */
.ct-summary { display: grid; gap: .5rem; }
.ct-summary-notes { margin: 0; padding-left: 1.1rem; font-size: .9rem; }
.ct-summary-table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
.ct-summary-table th, .ct-summary-table td { padding: .3rem .4rem; border-bottom: 1px solid var(--line); text-align: right; }
.ct-summary-table th:first-child, .ct-summary-table td:first-child { text-align: left; }
.ct-summary-table tr.you { font-weight: 800; }
.ct-summary-table td.good { color: #1b8f78; }
.ct-summary-table td.bad { color: #c8323c; }

/* ---------- Arena + lobby pages ---------- */
.ct-rules-panel { margin-bottom: 1rem; }
.ct-rules-picker { display: flex; flex-wrap: wrap; gap: .5rem; }
.ct-rule {
  display: grid; gap: .15rem; flex: 1 1 8rem; min-height: 2.75rem; padding: .5rem .75rem; text-align: left;
  border: 1px solid var(--line); border-radius: .75rem; background: var(--surface); color: var(--ink); font-weight: 700;
}
.ct-rule.on { border-color: var(--pc-back); background: linear-gradient(150deg, var(--pc-back), var(--pc-back-lo)); color: #fff; }
.ct-rule-name { font-weight: 800; }
.ct-rule-rating, .ct-rule-blurb { font-size: .78rem; font-weight: 600; opacity: .8; }
.ct-learn-cta {
  display: flex; align-items: center; gap: .75rem; margin-bottom: 1rem; padding: .85rem 1rem; border-radius: 1rem;
  background: radial-gradient(120% 140% at 0% 0%, var(--pc-felt-hi), var(--pc-felt) 70%); color: #eef6f1; text-decoration: none;
  box-shadow: 0 6px 18px rgb(7 32 25 / .25); transition: transform 140ms var(--ease);
}
.ct-learn-cta > span { display: grid; flex: 1; }
.ct-learn-cta .caption { color: var(--ct-ink-soft); }
.ct-learn-cta:hover { transform: translateY(-2px); }
.ct-arena-shell { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr)); gap: 1rem; margin-bottom: 1rem; }
.ct-arena .panel { align-content: start; }
.ct-panel-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .25rem .75rem; }
.ct-rating { padding: .15rem .65rem; border-radius: 999px; background: var(--line); font-size: .8rem; font-weight: 800; white-space: nowrap; }
.ct-panel-actions { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem; }
.ct-panel-actions > button, .ct-panel-actions > .button { flex: 1 1 8rem; }
.ct-focus { box-shadow: 0 0 0 3px var(--pc-gold); }
.ct-invite { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem; }
.ct-invite strong { font-size: 1.2rem; letter-spacing: .08em; }
.ct-invite input { flex: 1 1 12rem; min-width: 0; }
.ct-join { max-width: 28rem; margin-inline: auto; }
.ct-lobby-seats { display: grid; grid-template-columns: repeat(auto-fill, minmax(9rem, 1fr)); gap: .5rem; }
.ct-lobby-seats article { display: grid; gap: .2rem; padding: .6rem .75rem; border: 1px solid var(--line); border-radius: .75rem; background: var(--surface); }
.ct-lobby-seats article.open { border-style: dashed; color: var(--muted); }
.ct-places { display: grid; gap: .35rem; margin: 0; padding: 0; list-style: none; }
.ct-places li { display: flex; align-items: center; gap: .6rem; padding: .4rem .6rem; border-radius: .6rem; background: var(--surface); }
.ct-places li.you { box-shadow: inset 0 0 0 2px var(--pc-select); font-weight: 800; }
.ct-place { min-width: 2.5rem; font-weight: 800; color: #1b8f78; }

/* ---------- Learn ---------- */
/* Game (Hand/Trix) and section (Lessons/Practice) side by side on one row. */
.ct-learn-nav { display: grid; grid-template-columns: repeat(2, minmax(0, 22rem)); gap: .5rem; margin-bottom: .75rem; }
.ct-learn-tabs {
  display: grid; grid-auto-flow: column; grid-auto-columns: minmax(0, 1fr); gap: 2px; padding: 2px;
  border: 1px solid var(--line); border-radius: 999px; background: var(--surface);
}
.ct-learn-tabs button {
  min-height: 2.25rem; padding: 0 .4rem; font-size: .85rem; border: 0; border-radius: 999px; background: transparent; color: var(--muted);
  font-weight: 800; white-space: nowrap; transition: background 140ms var(--ease), color 140ms var(--ease), transform 140ms var(--ease);
}
.ct-learn-tabs button:active { transform: scale(.97); }
.ct-learn-tabs button.on { color: #fff; background: linear-gradient(150deg, var(--pc-back), var(--pc-back-lo)); }
.ct-learn-tabs small { margin-left: .2rem; font-size: .75em; opacity: .9; }
.ct-learn-grid { display: grid; grid-template-columns: minmax(0, 16rem) minmax(0, 1fr); gap: 1rem; align-items: start; }
.ct-progress-track { height: .45rem; overflow: hidden; border-radius: 999px; background: var(--line); }
.ct-progress-track span { display: block; width: var(--progress, 0%); height: 100%; background: linear-gradient(90deg, var(--pc-back), var(--pc-select)); transition: width 240ms var(--ease); }
.ct-lesson-list { display: grid; gap: .3rem; }
.ct-lesson-list button { display: flex; align-items: center; gap: .5rem; justify-content: flex-start; text-align: left; }
.ct-lesson-list button.done { color: #1b8f78; }
.ct-lesson-num {
  display: grid; place-items: center; flex: none; width: 1.5rem; height: 1.5rem; border-radius: 50%;
  background: var(--line); color: var(--ink); font-size: .75rem; font-weight: 800;
}
.ct-lesson-points { display: grid; gap: .4rem; margin: 0; padding-left: 1.2rem; }
.ct-example {
  display: grid; gap: .35rem; margin: 0; padding: .6rem .75rem; border-radius: .75rem;
  background: radial-gradient(120% 90% at 50% 20%, var(--pc-felt-hi), var(--pc-felt)); color: #eef6f1;
}
.ct-example.bad { background: linear-gradient(150deg, #5a2a2e, #34171a); }
.ct-example figcaption { font-size: .85rem; }
.ct-example-cards { --pc-w: 2.8rem; display: flex; flex-wrap: wrap; gap: .25rem; }
.ct-quiz { display: grid; gap: .75rem; padding: .75rem; border: 1px solid var(--line); border-radius: .75rem; }
.ct-quiz-row { display: grid; gap: .4rem; padding: .5rem; border-radius: .6rem; background: var(--pc-felt); color: #eef6f1; }
.ct-quiz-row .banner { margin: 0; }
.ct-practice { display: grid; gap: .6rem; }
/* Practice controls: one row of small segmented pills, then Hint and New game. Coach lives in the Tips flyout. */
.ct-practice-bar { display: flex; flex-wrap: wrap; align-items: center; gap: .4rem; }
.ct-seg {
  display: inline-flex; align-items: center; gap: 2px; padding: 2px; border: 1px solid var(--line); border-radius: 999px; background: var(--surface);
}
.ct-seg button {
  min-height: 2.25rem; min-width: 2.1rem; padding: 0 .6rem; border: 0; border-radius: 999px; background: transparent;
  color: var(--muted); font-size: .85rem; font-weight: 800;
}
.ct-seg-num button { padding: 0 .25rem; }
.ct-seg button.on { color: #fff; background: linear-gradient(150deg, var(--pc-back), var(--pc-back-lo)); }
.ct-seg-label { display: inline-flex; align-items: center; gap: .25rem; padding: 0 .15rem 0 .5rem; color: var(--muted); font-size: .7rem; font-weight: 700; }
.ct-seg-label svg { width: 1rem; height: 1rem; }
.ct-practice-tools { display: flex; flex: 1 0 auto; justify-content: flex-end; gap: .4rem; }
.ct-tool {
  display: inline-flex; align-items: center; justify-content: center; gap: .3rem; min-height: 2.25rem; min-width: 2.25rem;
  padding: 0 .75rem; border-radius: 999px; font-size: .85rem; white-space: nowrap;
}
.ct-tool svg { width: 1.05rem; height: 1.05rem; flex: none; }
.ct-practice-next { display: inline-flex; align-items: center; gap: .2rem; min-height: 1.75rem; justify-self: center; font-size: .9rem; font-weight: 800; }
.ct-practice-next svg { width: 1rem; height: 1rem; }
.ct-coach-switch {
  display: flex; align-items: center; gap: .5rem; padding-bottom: .5rem; border-bottom: 1px solid var(--line);
  font-size: .88rem; font-weight: 700; cursor: pointer;
}
.ct-coach-switch input { width: 1.15rem; height: 1.15rem; margin: 0; accent-color: var(--pc-back); }
.ct-coach-panel { display: grid; gap: .5rem; }
.ct-coach-panel h3, .ct-coach-panel p { margin: 0; }
.ct-coach-panel h3 { font-size: 1rem; }
.ct-bot-feed { display: grid; gap: .3rem; margin: 0; padding-left: 1rem; font-size: .82rem; color: var(--muted); }

/* The app's light button hover would wash out these dark felt controls. */
@media (hover: hover) and (pointer: fine) {
  .ct-seat:hover { background: rgb(255 255 255 / .1); }
  .ct-set:hover, .ct-staged-set:hover { background: rgb(255 255 255 / .08); }
  .ct-tips-btn:hover { background: rgb(232 182 76 / .28); }
  .ct-tips-btn[aria-expanded="true"]:hover { background: var(--pc-gold); }
  .ct-table .ct-board-close:hover { background: rgb(255 255 255 / .12); }
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .ct-learn-grid { grid-template-columns: minmax(0, 1fr); }
  .ct-lesson-list { grid-auto-flow: column; grid-auto-columns: max-content; overflow-x: auto; padding-bottom: .25rem; scrollbar-width: none; }
  .ct-lesson-list::-webkit-scrollbar { display: none; }
  .ct-lesson-list button { min-height: 2.25rem; padding: 0 .8rem 0 .4rem; font-size: .85rem; }
  .ct-lessons.panel { gap: .5rem; padding: .5rem; }
  .ct-lessons-head { display: none; }
  .ct-learn-grid { gap: .6rem; }
}
@media (max-width: 640px) {
  .ct-table { --pc-w: 3rem; padding: .5rem; gap: .5rem; border-radius: .75rem; }
  .ct-opponents { gap: .3rem; }
  .ct-seat { flex-basis: calc((100% - .6rem) / 2.35); }
  .ct-seat-you { flex-basis: 5.5rem; }
  .ct-seat { padding: .35rem; gap: .25rem; }
  .ct-avatar { width: 1.6rem; height: 1.6rem; font-size: .8rem; }
  .ct-seat-name strong { font-size: .8rem; }
  .ct-badges .ct-badge { font-size: .62rem; }
  .ct-back { width: 1.1rem; height: 1.6rem; margin-left: -.8rem; }
  .ct-backs { height: 1.8rem; }
  .ct-reveal, .ct-taken { --pc-w: 1.8rem; }
  .ct-staged-set { --pc-w: 1.9rem; }
  .ct-staged-set .pc { margin-right: -.85rem; }
  .ct-set { --pc-w: 2.5rem; }
  .ct-trick { width: min(100%, 13rem); }
  /* Phones: the whole table (opponents, piles, coach, hand and buttons) fits one screen of about 600px. */
  .ct-ribbon { flex-wrap: nowrap; font-size: .8rem; }
  .ct-ribbon { gap: .5rem; }
  .ct-ribbon-turn { flex: 1 1 0; min-width: 0; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
  /* Opponents: name and card count on one line, then badges and tricks on a second line if any. */
  .ct-seat { display: flex; flex-wrap: wrap; align-items: center; align-content: start; gap: .2rem .3rem; padding: .3rem .4rem; border-radius: .6rem; }
  .ct-seat > .ct-seat-head { flex: 1 1 calc(100% - 2.7rem); }
  .ct-seat > .ct-backs { flex: none; margin-left: auto; }
  .ct-seat > .ct-badges, .ct-seat > .ct-seat-stats { flex: none; }
  .ct-seat.ct-seat-fits::after { margin-left: auto; }
  .ct-table { padding: .4rem; gap: .4rem; }
  .ct-seat-head { min-width: 0; gap: .3rem; }
  .ct-seat .ct-avatar { display: none; }
  .ct-seat-name strong { font-size: .74rem; }
  .ct-seat-score { font-size: .68rem; }
  .ct-badge-bot { display: none; }

  .ct-badges:not(:has(.ct-badge:not(.ct-badge-bot))) { display: none; }
  .ct-backs { height: auto; padding: 0; }
  .ct-back:not(:first-child) { display: none; }
  .ct-back { width: .8rem; height: 1.15rem; transform: none; border-width: 1px; }
  .ct-backs b { margin-left: .2rem; font-size: .8rem; }
  .ct-seat-stats { font-size: .68rem; }
  .ct-center { gap: .4rem; min-height: 0; padding: .4rem; border-radius: .75rem; }
  /* Hand: stock and fire on the left, the table's sets scroll on the right. */
  .ct-center:has(> .ct-piles) { grid-template-columns: auto minmax(0, 1fr); align-items: start; justify-items: stretch; }
  .ct-center > .ct-piles { gap: .5rem; }
  .ct-center > .ct-center-note { align-self: center; text-align: left; }
  .ct-sets { max-height: 12.5rem; }
  .ct-board-title { font-size: .72rem; }
  .ct-set-row { gap: .3rem; }
  .ct-set { padding: .2rem .95rem .2rem .2rem; }
  .ct-kingdom { gap: .25rem; }
  .ct-kingdom-title { font-size: .8rem; }
  .ct-contract { font-size: .66rem; padding: .05rem .45rem; }
  .ct-kingdom.chosen .ct-contracts { display: none; }
  .ct-trick { --pc-w: 2.2rem; width: min(100%, 17rem); aspect-ratio: 2.4; }
  .ct-piles { --pc-w: 2.5rem; gap: 1.25rem; }
  .ct-pile { gap: .1rem; padding: .15rem; }
  .ct-pile-label { font-size: .68rem; }
  .ct-center-note { font-size: .78rem; }
  .ct-choose { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .35rem; }
  .ct-choose .button { gap: 0; min-height: 0; padding: .3rem .5rem; font-size: .8rem; line-height: 1.15; }
  .ct-choose .button .caption { font-size: .68rem; }
  .ct-choose > .ct-center-note { display: none; }
  .ct-kingdom:has(+ .ct-choose) .ct-contracts { display: none; }
  .ct-layout { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .25rem .4rem; }
  .ct-layout-row { grid-template-columns: 1.1rem minmax(0, 1fr); gap: .25rem; min-height: 2.4rem; }
  .ct-layout-cards { --pc-w: 2.2rem; }
  .ct-doubled { margin: 0; font-size: .72rem; gap: .2rem; }
  .ct-doubled .ct-badge { padding: 0 .35rem; font-size: .68rem; }
  .ct-tips-btn { min-height: 2rem; padding: 0 .6rem; font-size: .75rem; }
  .ct-tips { top: 2.4rem; right: .35rem; width: calc(100% - .7rem); font-size: .9rem; }
  .ct-you { gap: .3rem; padding: .4rem; }
  .ct-you-bar { flex-wrap: wrap; gap: .2rem .4rem; }
  .ct-you-bar .ct-seat-name { flex: 1 1 0; }
  .ct-you-bar .ct-seat-score { overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
  .ct-you-bar .ct-avatar { width: 1.6rem; height: 1.6rem; font-size: .8rem; }
  .ct-log { flex-basis: 100%; order: 3; text-align: left; font-size: .75rem; }
  .ct-hand { padding-top: .6rem; padding-bottom: .2rem; }
  /* The lower row tucks over the upper one's bottom edge; corners and most of each card stay in view. */
  .ct-hand-split { gap: 0; padding-top: .55rem; }
  .ct-hand-split, .ct-large .ct-hand-split { gap: 0; }
  .ct-hand-split .ct-hand-row + .ct-hand-row { margin-top: -1rem; }
  .ct-actions { gap: .3rem; }
  .ct-help { font-size: .78rem; line-height: 1.3; }
  .ct-open-meter { height: 1.2rem; }
  .ct-buttons { gap: .35rem; }
  .ct-buttons .button, .ct-buttons button { flex: 1 1 4.5rem; min-height: 2.75rem; padding-inline: .4rem; font-size: .88rem; white-space: nowrap; }

  /* Cards pages: a short heading, so the game starts near the top of the screen. */
  .page-heading.ct-head { gap: .15rem; margin-bottom: .6rem; }
  .ct-head h1 { font-size: 1.6rem; }
  .ct-head .muted { display: none; }
  .ct-head-play h1 { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
  .ct-learn-nav { grid-template-columns: minmax(0, 4fr) minmax(0, 6fr); gap: .35rem; margin-bottom: .5rem; }
  .ct-learn-tabs button { padding: 0 .3rem; font-size: .8rem; }
  .ct-practice { gap: .5rem; }
  .ct-practice-bar { flex-wrap: nowrap; gap: .3rem; }
  .ct-seg button { padding: 0 .5rem; font-size: .8rem; }
  .ct-seg-num button { min-width: 1.9rem; padding: 0 .2rem; }
  .ct-seg-label { padding-left: .4rem; }
  .ct-seg-label span { display: none; }
  .ct-practice-tools { gap: .3rem; }
  .ct-practice-bar:has(.ct-seg-num) .ct-tool { padding: 0; }
  .ct-practice-bar:has(.ct-seg-num) .ct-tool-label { display: none; }
  .ct-tool { padding: 0 .6rem; font-size: .8rem; }

  /* Lessons */
  .ct-lesson-card.panel { gap: .6rem; padding: .85rem; }
  .ct-lesson-card h2 { font-size: 1.3rem; }
  .ct-lesson-points { gap: .3rem; font-size: .92rem; }
  .ct-example { padding: .5rem .6rem; }
  .ct-example-cards { --pc-w: 2.4rem; }
  .ct-quiz { gap: .5rem; padding: .5rem; }
  .ct-quiz .ct-buttons button { min-height: 2.4rem; }
  .ct-lesson-nav button { min-height: 2.5rem; padding-inline: 1rem; }

  /* Arena */
  .ct-arena .panel { gap: .5rem; padding: .85rem; }
  .ct-arena h2 { font-size: 1.15rem; }
  .ct-arena h3 { font-size: .95rem; }
  .ct-arena-shell { gap: .6rem; margin-bottom: .6rem; }
  .ct-rules-panel.panel { margin-bottom: .6rem; padding: .5rem; }
  .ct-rules-picker { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .3rem; }
  .ct-rule { min-height: 2.5rem; padding: .3rem .2rem; place-items: center; text-align: center; border-radius: .6rem; font-size: .8rem; line-height: 1.1; }
  .ct-rule-blurb { margin-top: .4rem; font-size: .75rem; }
  .ct-learn-cta { gap: .6rem; margin-bottom: .6rem; padding: .55rem .8rem; font-size: .9rem; }
  .ct-learn-cta .caption { display: none; }
  .ct-panel-actions > button, .ct-panel-actions > .button { min-height: 2.6rem; }

  /* Lobby */
  .ct-lobby.panel { gap: .6rem; padding: .85rem; }
  .ct-lobby h2 { font-size: 1.15rem; }
  .ct-invite { flex-wrap: nowrap; gap: .35rem; }
  .ct-invite strong { font-size: 1rem; }
  .ct-invite input { flex: 1 1 4rem; min-height: 2.5rem; padding-inline: .6rem; font-size: .8rem; }
  .ct-invite .icon-button { flex: none; width: 2.5rem; height: 2.5rem; min-height: 0; }
  .ct-arena .ct-invite { flex-wrap: wrap; }
  .ct-arena .ct-invite .button { flex: 1 1 100%; }
  .ct-lobby-seats { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .35rem; }
  .ct-lobby-seats article { gap: 0; padding: .4rem .6rem; border-radius: .6rem; }
  .ct-lobby-seats b { overflow: hidden; white-space: nowrap; text-overflow: ellipsis; font-size: .88rem; }
  .ct-lobby-seats .caption { font-size: .75rem; }
}
@media (max-width: 400px) {
  .ct-table { --pc-w: 2.8rem; }
}
/* Smallest phones: game type and tools on one row, the player count below. */
@media (max-width: 359px) {
  .ct-practice-bar { flex-wrap: wrap; }
  .ct-practice-bar .ct-seg-num { order: 3; }
}

@keyframes ct-pulse { 50% { opacity: .65; } }
@keyframes ct-fly { from { opacity: 0; transform: scale(.94) translateY(-.4rem); } }
@keyframes ct-land { from { transform: scale(1.08) translateY(-.3rem); opacity: .3; } }
@media (prefers-reduced-motion: reduce) {
  .ct-timer.low, .ct-trick-slot, .ct-tips, .ct-tips-btn.unread::after { animation: none; }
  .ct-seat, .ct-hand .pc, .ct-open-meter span, .ct-progress-track span, .ct-learn-cta, .ct-learn-tabs button { transition: none; }
}