:root {
  --table-felt: #12513d;
  --table-felt-deep: #0c3c2d;
  --table-line: rgba(255,255,255,0.20);
  --table-text: #f4fbf7;
  --card-bg: #fffefb;
  --card-border: #d9ddd8;
  --card-black: #17201c;
  --card-red: #b1262d;
  --card-blue: #175ea8;
  --card-green: #1b704b;
  --card-w: calc(clamp(60px, 6vw, 88px) * var(--user-card-scale));
  --card-h: calc(var(--card-w) * 1.4);
  --card-gap: clamp(5px, 0.9vw, 13px);
}

html[data-theme="navy"] { --table-felt: #173f5b; --table-felt-deep: #0d2d43; --table-text: #f5fbff; }
html[data-theme="ivory"] { --table-felt: #e7e1d2; --table-felt-deep: #d8cfbb; --table-line: rgba(41,47,43,0.20); --table-text: #1d2923; }
html[data-theme="midnight"] { --table-felt: #1b2229; --table-felt-deep: #0d1217; --table-text: #f5f7f8; }
html[data-theme="contrast"] { --table-felt: #000; --table-felt-deep: #000; --table-line: #fff; --table-text: #fff; --card-border: #000; }
.four-color-suits .playing-card[data-card-id*="-D-"] { color: var(--card-blue); }
.four-color-suits .playing-card[data-card-id*="-C-"] { color: var(--card-green); }
.reduce-motion *, .reduce-motion *::before, .reduce-motion *::after { scroll-behavior: auto !important; animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }

.game-intro {
  width: min(calc(100% - 32px), var(--content));
  margin: 0 auto;
  padding: 28px 0 22px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 30px;
}
.game-intro h1 { margin: 0 0 7px; font-family: var(--font-display); font-size: clamp(36px, 5vw, 58px); line-height: 1; letter-spacing: -0.04em; }
.game-intro p { max-width: 720px; margin: 0; color: var(--ink-soft); font-size: 18px; }
.game-trust { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px; }
.game-trust span { padding: 6px 10px; border: 1px solid var(--line); border-radius: 999px; color: var(--ink-soft); background: var(--paper-strong); font-size: 12px; font-weight: 760; }

.game-stage {
  position: relative;
  border-top: 1px solid rgba(255,255,255,0.08);
  border-bottom: 1px solid rgba(0,0,0,0.18);
  color: var(--table-text);
  background:
    radial-gradient(circle at 18% 0%, rgba(255,255,255,0.08), transparent 30%),
    linear-gradient(145deg, var(--table-felt), var(--table-felt-deep));
  box-shadow: inset 0 1px rgba(255,255,255,0.08), inset 0 -16px 60px rgba(0,0,0,0.08);
}
.game-stage:fullscreen { overflow: auto; }
.game-stage:fullscreen .game-toolbar { top: 0; }
.game-toolbar {
  position: sticky;
  z-index: 500;
  top: var(--header-height);
  min-height: 60px;
  border-bottom: 1px solid rgba(255,255,255,0.14);
  background: color-mix(in srgb, var(--table-felt-deep) 87%, transparent);
  backdrop-filter: blur(16px);
}
.toolbar-inner {
  width: min(calc(100% - 24px), 1340px);
  min-height: 60px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.toolbar-group { display: flex; align-items: center; gap: 6px; }
.toolbar-group-scroll { min-width: 0; overflow-x: auto; scrollbar-width: none; }
.toolbar-group-scroll::-webkit-scrollbar { display: none; }
.control-button {
  flex: 0 0 auto;
  min-height: 44px;
  padding: 8px 12px;
  border-color: rgba(255,255,255,0.23);
  color: var(--table-text);
  background: rgba(4, 24, 17, 0.18);
  box-shadow: none;
}
.control-button:hover { border-color: rgba(255,255,255,0.42); color: var(--table-text); background: rgba(255,255,255,0.10); }
.control-button svg { width: 18px; height: 18px; stroke: currentColor; }
.control-button .label { margin-left: 5px; }
.control-button.is-primary { color: #163025; background: #f6f0df; border-color: #f6f0df; }
.toolbar-divider { width: 1px; height: 28px; background: rgba(255,255,255,0.18); }

.game-stats {
  width: min(calc(100% - 24px), 1340px);
  margin: 0 auto;
  padding: 12px 0 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: color-mix(in srgb, var(--table-text) 78%, transparent);
  font-size: 12px;
  font-weight: 730;
  letter-spacing: 0.02em;
}
.stats-list { margin: 0; display: flex; flex-wrap: wrap; gap: 8px 18px; }
.stats-list div { display: flex; gap: 6px; }
.stats-list dt { color: color-mix(in srgb, var(--table-text) 62%, transparent); }
.stats-list dd { margin: 0; color: var(--table-text); font-variant-numeric: tabular-nums; }
.deal-stat { max-width: 220px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.board-scroll {
  width: 100%;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scrollbar-color: rgba(255,255,255,0.30) transparent;
}
.game-board {
  width: min(calc(100% - 24px), 1340px);
  min-height: clamp(600px, 72vh, 900px);
  margin: 0 auto;
  padding: 22px 0 70px;
  user-select: none;
  touch-action: manipulation;
}
.game-board[data-engine="spider"],
.game-board[data-engine="fortythieves"],
.game-board[data-engine="cruel"] { --card-w: calc(clamp(52px, 5.25vw, 75px) * var(--user-card-scale)); }
.game-board[data-engine="doubleklondike"] { --card-w: calc(clamp(54px, 5.55vw, 78px) * var(--user-card-scale)); }

.board-top-row { min-height: calc(var(--card-h) + 12px); display: flex; justify-content: space-between; gap: 28px; }
.board-top-left, .board-top-right, .foundation-group, .cell-group, .reserve-group { display: flex; align-items: flex-start; gap: var(--card-gap); }
.board-top-left { min-width: 0; flex-wrap: wrap; }
.board-top-right { margin-left: auto; }
.utility-pile, .tableau-pile, .special-pile {
  position: relative;
  flex: 0 0 var(--card-w);
  width: var(--card-w);
  height: var(--card-h);
}
.pile-slot {
  position: absolute;
  inset: 0;
  width: 100%;
  min-height: 0;
  padding: 0;
  border: 1.5px solid var(--table-line);
  border-radius: calc(var(--card-w) * 0.09);
  color: inherit;
  background: rgba(0,0,0,0.07);
  cursor: pointer;
}
.pile-slot::after {
  content: '';
  position: absolute;
  inset: 8%;
  border: 1px solid color-mix(in srgb, var(--table-line) 70%, transparent);
  border-radius: inherit;
}
.stock-hit-area { position: absolute; z-index: 90; inset: 0; width: 100%; min-height: 0; border: 0; background: transparent; cursor: pointer; }
.pile-count {
  position: absolute;
  z-index: 95;
  right: -5px;
  bottom: -7px;
  min-width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  padding: 0 6px;
  border: 2px solid var(--table-felt);
  border-radius: 999px;
  color: #17231d;
  background: #f8f2e3;
  font-size: 11px;
  font-weight: 850;
  pointer-events: none;
}
.foundation-mark, .cell-mark {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: color-mix(in srgb, var(--table-text) 40%, transparent);
  font-family: var(--font-display);
  font-size: calc(var(--card-w) * 0.35);
  pointer-events: none;
}
.cell-mark { font-family: var(--font-ui); font-size: calc(var(--card-w) * 0.12); font-weight: 800; letter-spacing: 0.08em; }
.completed-runs { min-width: calc(var(--card-w) * 1.25); height: var(--card-h); display: flex; flex-direction: column; align-items: center; justify-content: center; border: 1.5px solid var(--table-line); border-radius: 14px; color: var(--table-text); background: rgba(0,0,0,0.07); }
.completed-runs strong { font-family: var(--font-display); font-size: calc(var(--card-w) * 0.45); line-height: 1; }
.completed-runs span { margin-top: 5px; font-size: 11px; font-weight: 750; }

.playing-card {
  position: absolute;
  z-index: calc(10 + var(--card-offset) * 10);
  top: calc(var(--card-offset) * var(--card-h));
  left: 0;
  width: var(--card-w);
  height: var(--card-h);
  min-height: 0;
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--card-border);
  border-radius: calc(var(--card-w) * 0.09);
  color: var(--card-black);
  background: var(--card-bg);
  box-shadow: 0 2px 5px rgba(2, 15, 9, 0.16), 0 10px 22px rgba(2, 15, 9, 0.10);
  cursor: grab;
  transform-origin: center bottom;
  transition: transform 120ms ease, box-shadow 120ms ease, outline-color 120ms ease;
}
.playing-card:active { cursor: grabbing; }
.playing-card:hover.is-face-up { transform: translateY(-2px); box-shadow: 0 4px 7px rgba(2,15,9,0.18), 0 14px 26px rgba(2,15,9,0.13); }
.playing-card.is-selected { outline: 4px solid #ffcf45; outline-offset: 1px; transform: translateY(-4px); }
.playing-card.is-hinted, .pile-slot.is-hinted { animation: hintPulse 1.35s ease-in-out infinite; }
.playing-card[data-card-id*="-H-"], .playing-card[data-card-id*="-D-"] { color: var(--card-red); }
.playing-card.is-face-down {
  border-color: #cdd8d1;
  color: #fff;
  background: linear-gradient(135deg, #f6f1df 0 8%, #164d3c 8% 92%, #f6f1df 92%);
  cursor: default;
}
.card-back-pattern {
  position: absolute;
  inset: 8%;
  border: 2px solid rgba(255,255,255,0.76);
  border-radius: calc(var(--card-w) * 0.06);
  background:
    linear-gradient(45deg, transparent 42%, rgba(255,255,255,0.18) 42% 58%, transparent 58%) 0 0 / 15px 15px,
    linear-gradient(-45deg, transparent 42%, rgba(255,255,255,0.12) 42% 58%, transparent 58%) 0 0 / 15px 15px,
    #17634b;
  box-shadow: inset 0 0 0 3px rgba(255,255,255,0.12);
}
.card-corner { position: absolute; left: 9%; display: flex; flex-direction: column; align-items: center; font-family: Georgia, serif; font-size: calc(var(--card-w) * 0.19); line-height: 0.88; }
.card-corner strong { font-size: calc(var(--card-w) * 0.22); }
.card-corner-top { top: 7%; }
.card-corner-bottom { right: 9%; bottom: 7%; left: auto; transform: rotate(180deg); }
.card-center { position: absolute; inset: 0; display: grid; place-items: center; font-family: Georgia, serif; font-size: calc(var(--card-w) * 0.48); opacity: 0.94; }
.court-mark { width: 55%; aspect-ratio: 1; display: grid; place-items: center; border: 2px solid currentColor; border-radius: 50%; font-size: calc(var(--card-w) * 0.30); background: color-mix(in srgb, currentColor 5%, transparent); }

.tableau-grid {
  margin-top: 26px;
  display: grid;
  grid-template-columns: repeat(var(--tableau-columns), var(--card-w));
  justify-content: space-between;
  gap: var(--card-gap);
}
.tableau-pile { min-height: calc(var(--card-h) * 5.4); }
.game-board[data-engine="spider"] .tableau-pile,
.game-board[data-engine="spiderette"] .tableau-pile,
.game-board[data-engine="yukon"] .tableau-pile,
.game-board[data-engine="russian"] .tableau-pile,
.game-board[data-engine="scorpion"] .tableau-pile { min-height: calc(var(--card-h) * 6.3); }

.special-tableau { position: relative; margin: 24px auto 0; }
.pyramid-tableau { width: min(100%, calc(var(--card-w) * 7.8)); height: calc(var(--card-h) * 3.75); }
.pyramid-tableau .special-pile {
  position: absolute;
  top: calc(var(--row) * var(--card-h) * 0.43);
  left: calc(50% - (var(--row-count) * var(--card-w) * 0.52) + (var(--col) * var(--card-w) * 1.04));
}
.tripeaks-tableau { width: min(100%, calc(var(--card-w) * 10.4)); height: calc(var(--card-h) * 3.2); }
.tripeaks-tableau .special-pile {
  position: absolute;
  top: calc(var(--row) * var(--card-h) * 0.54);
  left: calc((var(--x) / 18) * (100% - var(--card-w)));
}
.special-pile:not(.is-exposed) .playing-card { pointer-events: none; }

.hint-panel {
  position: sticky;
  z-index: 480;
  bottom: 18px;
  width: min(calc(100% - 24px), 760px);
  margin: 0 auto;
  padding: 13px 14px 13px 18px;
  display: flex;
  align-items: center;
  gap: 14px;
  border: 1px solid rgba(255,255,255,0.26);
  border-radius: 16px;
  color: #16251e;
  background: #fff8df;
  box-shadow: 0 16px 40px rgba(0,0,0,0.24);
}
.hint-panel p { flex: 1; margin: 0; font-weight: 680; }
.hint-panel .button { min-height: 40px; padding: 7px 12px; }

.game-content { padding: 70px 0 90px; }
.game-content-grid { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 70px; }
.game-article h2 { margin: 50px 0 16px; font-family: var(--font-display); font-size: clamp(32px, 4.5vw, 48px); line-height: 1.08; letter-spacing: -0.035em; }
.game-article h2:first-child { margin-top: 0; }
.game-article p, .game-article li { color: #35433c; font-size: 17px; }
.game-article li + li { margin-top: 10px; }
.game-sidebar { position: sticky; top: calc(var(--header-height) + 22px); align-self: start; }
.info-panel { padding: 22px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--paper-strong); box-shadow: var(--shadow-sm); }
.info-panel + .info-panel { margin-top: 16px; }
.info-panel h2 { margin: 0 0 14px; font-family: var(--font-display); font-size: 25px; }
.info-list { margin: 0; display: grid; gap: 10px; }
.info-list div { display: flex; justify-content: space-between; gap: 12px; }
.info-list dt { color: var(--ink-soft); }
.info-list dd { margin: 0; font-weight: 750; text-align: right; }
.related-links a { display: block; padding: 8px 0; border-bottom: 1px solid var(--line); font-weight: 700; }
.related-links a:last-child { border: 0; }

@keyframes hintPulse {
  0%, 100% { outline: 2px solid rgba(255, 210, 68, 0.2); outline-offset: 2px; }
  50% { outline: 5px solid rgba(255, 210, 68, 0.95); outline-offset: 3px; }
}

.left-handed .toolbar-inner { flex-direction: row-reverse; }
.left-handed .toolbar-group:first-child { flex-direction: row-reverse; }

@media (max-width: 1000px) {
  .game-content-grid { grid-template-columns: 1fr; gap: 34px; }
  .game-sidebar { position: static; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
  .info-panel + .info-panel { margin-top: 0; }
  .control-button .label.optional { display: none; }
}

@media (max-width: 760px) {
  :root { --card-w: calc(clamp(45px, 12.25vw, 62px) * var(--user-card-scale)); --card-gap: 3px; }
  .game-intro { width: min(calc(100% - 24px), var(--content)); padding: 20px 0 16px; grid-template-columns: 1fr; gap: 12px; }
  .game-intro h1 { font-size: clamp(34px, 10vw, 48px); }
  .game-intro p { font-size: 16px; }
  .game-trust { justify-content: flex-start; }
  .game-trust span:nth-child(n+3) { display: none; }
  .game-toolbar { top: var(--header-height); }
  .toolbar-inner { width: calc(100% - 12px); min-height: 56px; }
  .toolbar-group-secondary { display: none; }
  .control-button { min-height: 44px; padding: 8px 10px; }
  .control-button .label { display: none; }
  .game-stats { padding-top: 9px; }
  .stats-list { gap: 7px 12px; }
  .stats-list div:nth-child(4) { display: none; }
  .game-board { width: calc(100% - 12px); min-height: 570px; padding-top: 14px; }
  .board-top-row { gap: 10px; }
  .board-top-left, .board-top-right, .foundation-group, .cell-group { gap: 3px; }
  .completed-runs { min-width: var(--card-w); }
  .completed-runs span { display: none; }
  .tableau-grid { margin-top: 18px; }
  .tableau-pile { min-height: calc(var(--card-h) * 6.4); }
  .game-board[data-engine="spider"],
  .game-board[data-engine="fortythieves"],
  .game-board[data-engine="cruel"],
  .game-board[data-engine="doubleklondike"] {
    width: 620px;
    --card-w: calc(52px * var(--user-card-scale));
    padding-left: 8px;
    padding-right: 8px;
  }
  .game-board[data-engine="scorpion"] { width: 480px; }
  .game-board[data-engine="freecell"],
  .game-board[data-engine="bakers"],
  .game-board[data-engine="eightoff"],
  .game-board[data-engine="seahaven"] { width: max(calc(100% - 12px), 500px); }
  .hint-panel { bottom: 8px; flex-wrap: wrap; }
  .hint-panel p { flex-basis: 100%; }
  .game-content { padding-top: 48px; }
  .game-sidebar { grid-template-columns: 1fr; }
}

@media (max-width: 430px) {
  :root { --card-w: calc(44px * var(--user-card-scale)); }
  .board-top-right .foundation-group { display: grid; grid-template-columns: repeat(2, var(--card-w)); }
  .board-top-row { min-height: calc(var(--card-h) * 2.1); }
  .cell-group { display: grid; grid-template-columns: repeat(2, var(--card-w)); }
  .pyramid-tableau { transform-origin: top left; }
}