:root { --solitaire-felt: #155247; }
body { background: #0b2524; }
.game-shell { display: flex; min-width: 0; flex-direction: column; background: radial-gradient(circle at 78% 12%, rgba(210,173,82,.08), transparent 25%), linear-gradient(145deg, #183c37, #092421 72%); }
.game-header { display: flex; gap: 24px; align-items: center; justify-content: space-between; padding: 20px clamp(20px, 3vw, 42px) 16px; border-bottom: 1px solid rgba(210,173,82,.28); background: rgba(7,23,37,.72); }
.game-header h1 { margin: 2px 0 0; color: var(--maize-pale); font-family: var(--serif); font-size: clamp(30px, 3.3vw, 45px); font-weight: 500; letter-spacing: .02em; }
.game-header p { margin: 2px 0 0; color: rgba(255,255,255,.55); font-family: var(--serif); font-size: 12px; font-style: italic; }
.game-actions { display: flex; flex-wrap: wrap; gap: 8px; justify-content: flex-end; }
.button { min-height: 36px; padding: 8px 13px; border: 1px solid rgba(238,226,189,.3); border-radius: 3px; background: rgba(255,255,255,.05); color: #fff; cursor: pointer; font-size: 12px; font-weight: 750; }
.button:hover, .button:focus-visible { border-color: var(--maize); background: rgba(210,173,82,.12); outline: none; }
.button.primary { border-color: var(--maize); background: var(--maize); color: var(--navy-950); }
.button:disabled { opacity: .45; cursor: not-allowed; }
.control-bar { display: flex; flex-wrap: wrap; gap: 10px 18px; align-items: end; padding: 12px clamp(20px, 3vw, 42px); border-bottom: 1px solid rgba(255,255,255,.08); background: rgba(8,26,30,.64); }
.control-bar label { display: grid; gap: 4px; color: rgba(255,255,255,.55); font-size: 9px; font-weight: 800; letter-spacing: .09em; text-transform: uppercase; }
.control-bar select { min-width: 104px; height: 32px; padding: 5px 26px 5px 8px; border: 1px solid rgba(238,226,189,.25); border-radius: 3px; background: #173b3b; color: white; font-size: 12px; }
.control-bar .deck-control { margin-left: auto; }
.deck-control select { min-width: 210px; }
.control-bar select:focus { border-color: var(--maize); outline: 2px solid rgba(210,173,82,.2); }
.sound-toggle { display: flex !important; min-height: 32px; flex-direction: row; gap: 7px !important; align-items: center; padding: 0 8px; }
.sound-toggle input { accent-color: var(--maize); }
.status-bar { display: grid; grid-template-columns: repeat(4, minmax(76px, auto)) 1fr; gap: 1px; padding: 0 clamp(20px, 3vw, 42px); border-bottom: 1px solid rgba(210,173,82,.22); background: rgba(7,23,37,.52); }
.status-bar > div { padding: 9px 16px 9px 0; }
.status-bar span { display: block; color: rgba(255,255,255,.46); font-size: 8px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.status-bar strong { display: block; margin-top: 2px; color: var(--maize-pale); font-size: 13px; font-variant-numeric: tabular-nums; }
.interaction-hint { align-self: center; justify-self: end; margin: 0; color: rgba(255,255,255,.42); font-family: var(--serif); font-size: 11px; font-style: italic; }
.table-surface { position: relative; flex: 1; min-height: 600px; overflow-x: hidden; padding: clamp(18px, 2.3vw, 34px); background-color: var(--solitaire-felt); background-image: radial-gradient(circle at center, rgba(255,255,255,.028) 0 1px, transparent 1px), linear-gradient(rgba(4,30,27,.13), rgba(4,30,27,.13)); background-size: 9px 9px, auto; }
.game-board { width: 100%; min-height: 560px; margin: 0 auto; }
.upper-board, .tableau { display: grid; grid-template-columns: repeat(7, var(--card-width)); gap: var(--gap); justify-content: space-between; }
.upper-board { align-items: start; }
.pile { position: relative; width: var(--card-width); min-height: var(--card-height); }
.playing-card, .empty-pile { box-sizing: border-box; width: var(--card-width); height: var(--card-height); display: block; padding: 0; overflow: hidden; border: 0; border-radius: calc(var(--card-width) * .055); background: transparent; }
.playing-card { position: relative; cursor: grab; box-shadow: 0 3px 9px rgba(0,0,0,.35); touch-action: manipulation; }
.playing-card[data-source-type] { touch-action: none; }
.playing-card img, .card-art { width: 100%; height: 100%; display: block; object-fit: contain; object-position: center; pointer-events: none; }
.waste-card { position: absolute; z-index: calc(var(--waste-position) + 1); left: calc(var(--waste-position) * var(--waste-offset)); top: 0; }

/* Canonical empty-foundation presentation. This local override loads after the shared card CSS. */
.foundation-pile.is-empty {
  box-sizing: border-box;
  width: var(--card-width);
  height: var(--card-height);
  min-height: var(--card-height);
  display: grid;
  place-items: center;
  overflow: hidden;
  border: clamp(2px, calc(var(--card-width) * .026), 4px) solid rgba(238,226,189,.78);
  border-radius: clamp(5px, calc(var(--card-width) * .055), 10px);
  background: rgba(5,31,28,.22);
}
.foundation-placeholder {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  pointer-events: none;
}
.foundation-placeholder__suit {
  display: block;
  width: 58%;
  height: 58%;
  fill: currentColor;
  overflow: visible;
  filter: drop-shadow(0 1px 0 rgba(238,226,189,.22));
}
.foundation-pile.spades, .foundation-pile.clubs { color: #111817; }
.foundation-pile.hearts, .foundation-pile.diamonds { color: #941f35; }
.foundation-pile.is-empty.is-snap-target,
.tableau-pile.is-snap-target {
  outline: clamp(3px, calc(var(--card-width) * .035), 5px) solid rgba(238,226,189,.94);
  outline-offset: 3px;
  box-shadow: 0 0 0 4px rgba(210,173,82,.22), 0 0 22px rgba(210,173,82,.38);
}
.waste-pile { grid-column: span 2; width: calc(var(--card-width) + 2 * var(--waste-offset)); }
.tableau { margin-top: clamp(22px, 3vw, 42px); align-items: start; }
.tableau-pile { height: calc(var(--card-height) + var(--down-cards) * var(--face-down-offset) + var(--up-cards) * var(--face-up-offset)); min-height: var(--card-height); border-radius: 4px; }
.tableau-pile > .playing-card { position: absolute; inset: calc(var(--stack-down) * var(--face-down-offset) + var(--stack-up) * var(--face-up-offset)) auto auto 0; }
.empty-king { width: var(--card-width); height: var(--card-height); display: grid; place-items: center; border: 1px solid rgba(238,226,189,.2); border-radius: 4px; color: rgba(238,226,189,.24); font-family: var(--serif); font-size: calc(var(--card-width) * .35); }
.toast { position: fixed; z-index: 50; right: 22px; bottom: 22px; margin: 0; padding: 10px 14px; border: 1px solid rgba(210,173,82,.5); border-radius: 3px; background: var(--navy-950); box-shadow: 0 6px 24px rgba(0,0,0,.4); color: var(--maize-pale); font-size: 12px; }
.win-message { position: absolute; z-index: 15; inset: 32% auto auto 50%; min-width: 280px; padding: 24px 30px; transform: translateX(-50%); border: 1px solid var(--maize); background: rgba(7,23,37,.96); box-shadow: 0 14px 48px rgba(0,0,0,.55); color: var(--maize-pale); text-align: center; animation: win-in 800ms ease both; }
.win-message span, .win-message strong, .win-message small { display: block; }
.win-message span { color: var(--maize); font-size: 24px; }
.win-message strong { margin-top: 8px; font-family: var(--serif); font-size: 20px; font-weight: 500; }
.win-message small { margin-top: 7px; color: rgba(255,255,255,.55); }
@keyframes win-in { from { opacity: 0; transform: translate(-50%, 10px); } to { opacity: 1; transform: translate(-50%, 0); } }
@media (max-width: 760px) {
  .game-header { align-items: flex-start; padding: 14px 16px; }
  .game-header p { display: none; }
  .game-actions { gap: 5px; }
  .button { min-height: 32px; padding: 6px 9px; font-size: 10px; }
  .control-bar { gap: 8px; padding: 10px 16px; }
  .control-bar label { flex: 1 1 90px; }
  .control-bar .deck-control { flex-basis: 180px; margin-left: 0; }
  .deck-control select { min-width: 0; }
  .control-bar select { width: 100%; min-width: 0; }
  .sound-toggle { flex: 0 0 auto !important; }
  .status-bar { grid-template-columns: repeat(4, 1fr); padding: 0 16px; }
  .status-bar > div { padding-right: 5px; }
  .interaction-hint { display: none; }
  .table-surface { min-height: 530px; padding: 16px 10px; overflow-x: clip; }
  .game-board { min-height: 500px; }
}
@media (max-width: 390px) { .game-header h1 { font-size: 27px; } .game-header .eyebrow { display: none; } .button { padding-inline: 7px; } }