:root {
  color-scheme: dark;
  --felt: #177954;
  --felt-mid: #126545;
  --felt-dark: #092d25;
  --felt-line: rgba(232, 255, 238, 0.09);
  --ink: #f7f0dc;
  --muted: rgba(247, 240, 220, 0.68);
  --card: #ffffff;
  --card-edge: #d9dee7;
  --card-ink: #1a2027;
  --red: #bc1f3c;
  --black: #17202a;
  --gold: #e6bb55;
  --copper: #b45c38;
  --panel: rgba(6, 17, 19, 0.74);
  --panel-strong: rgba(7, 28, 27, 0.9);
  --panel-border: rgba(255, 242, 199, 0.16);
  --shadow: 0 1.2rem 3rem rgba(0, 0, 0, 0.34);
  --hard-shadow: 0 0.7rem 0 rgba(4, 12, 13, 0.45);
  --card-back:
    linear-gradient(135deg, rgba(255, 255, 255, 0.18), transparent 28%),
    repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.14) 0 0.28rem, transparent 0.28rem 0.56rem),
    repeating-linear-gradient(135deg, rgba(0, 0, 0, 0.16) 0 0.28rem, transparent 0.28rem 0.56rem),
    linear-gradient(145deg, #2a4960, #1a2e3d);
  --card-width: 6.7rem;
  --card-ratio: 1.5;
  --card-height: calc(var(--card-width) * var(--card-ratio));
  --card-gap: 32px;
  --table-gap: 0.55rem;
  --table-padding: 1rem;
  --table-width: calc(
    (var(--card-width) * 10) + (var(--table-gap) * 9) + (var(--table-padding) * 2)
  );
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  color: var(--ink);
  background:
    linear-gradient(115deg, rgba(230, 187, 85, 0.09), transparent 34%),
    linear-gradient(245deg, rgba(180, 92, 56, 0.1), transparent 38%),
    linear-gradient(180deg, #102325 0%, #0b161b 48%, #081114 100%);
  background-attachment: fixed;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.22;
  background:
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.035) 0 1px, transparent 1px 7px),
    repeating-linear-gradient(0deg, rgba(0, 0, 0, 0.18) 0 1px, transparent 1px 9px);
  mix-blend-mode: soft-light;
}

button,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.52;
}

.game-shell {
  width: min(96rem, 100%);
  min-height: 100vh;
  margin: 0 auto;
  padding: clamp(0.75rem, 1.8vw, 1.4rem);
  display: grid;
  grid-template-rows: 1fr;
}

.table-area {
  border: 1px solid var(--panel-border);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0)),
    var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.floating-actions {
  position: absolute;
  right: 1rem;
  bottom: 1rem;
  z-index: 1800;
  display: flex;
  align-items: stretch;
  gap: 0.5rem;
}

.new-split {
  position: relative;
  display: flex;
  box-shadow: 0 0.7rem 1.8rem rgba(0, 0, 0, 0.28);
}

.new-primary,
.new-arrow,
.undo-action {
  height: 2.45rem;
  border: 1px solid rgba(196, 224, 241, 0.26);
  color: var(--ink);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.025)),
    #213b4e;
  padding: 0 0.75rem;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.13),
    0 0.35rem 0.8rem rgba(0, 0, 0, 0.18);
}

.new-primary {
  min-width: 4.25rem;
  border-radius: 7px 0 0 7px;
  padding: 0 0.85rem;
  font-weight: 600;
}

.new-arrow {
  min-width: 5.6rem;
  border-left: 0;
  border-radius: 0 7px 7px 0;
  padding: 0 0.7rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  font-weight: 600;
}

.undo-action {
  min-width: 4.5rem;
  border-radius: 7px;
  padding: 0 0.85rem;
  font-weight: 600;
}

.new-primary:hover,
.new-arrow:hover,
.undo-action:hover:not(:disabled),
.new-menu button:hover {
  border-color: rgba(196, 224, 241, 0.52);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.035)),
    #29485e;
}

.new-menu {
  position: absolute;
  right: 0;
  bottom: calc(100% - 1px);
  width: 5.6rem;
  padding: 0;
  border: 1px solid rgba(196, 224, 241, 0.24);
  border-bottom: 0;
  border-radius: 7px 7px 0 0;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.025)),
    #213b4e;
  box-shadow: 0 0.8rem 2rem rgba(0, 0, 0, 0.32);
  overflow: hidden;
  backdrop-filter: blur(12px);
}

.new-menu[hidden] {
  display: none;
}

.new-menu button {
  display: block;
  width: 100%;
  height: 2.35rem;
  border: 1px solid transparent;
  border-radius: 0;
  border-bottom-color: rgba(196, 224, 241, 0.14);
  color: var(--ink);
  background: transparent;
  text-align: center;
  padding: 0 0.5rem;
  font-weight: 600;
}

.new-menu button[hidden] {
  display: none;
}

.table-area {
  position: relative;
  container-type: inline-size;
  --card-width: clamp(4.5rem, calc((100cqi - 6.95rem) / 10), 6.7rem);
  --card-height: calc(var(--card-width) * var(--card-ratio));
  --table-width: calc(
    (var(--card-width) * 10) + (var(--table-gap) * 9) + (var(--table-padding) * 2)
  );
  display: grid;
  grid-template-rows: auto 1fr;
  min-height: 38rem;
  border-radius: 8px;
  overflow: auto;
  background:
    linear-gradient(90deg, var(--felt-line) 1px, transparent 1px) 0 0 / 2.05rem 2.05rem,
    linear-gradient(0deg, var(--felt-line) 1px, transparent 1px) 0 0 / 2.05rem 2.05rem,
    repeating-linear-gradient(115deg, rgba(255, 255, 255, 0.035) 0 1px, transparent 1px 6px),
    linear-gradient(160deg, var(--felt) 0%, var(--felt-mid) 48%, var(--felt-dark) 100%);
  box-shadow:
    inset 0 0 0 0.45rem rgba(4, 18, 16, 0.54),
    inset 0 0 0 0.62rem rgba(230, 187, 85, 0.13),
    inset 0 2rem 4rem rgba(255, 255, 255, 0.04),
    var(--shadow);
}

.stock-row {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(10, var(--card-width));
  align-items: center;
  gap: var(--table-gap);
  padding: var(--table-padding);
  min-width: var(--table-width);
}

.stock,
.foundation-slot {
  width: var(--card-width);
  height: var(--card-height);
  border-radius: 8px;
}

.stock {
  position: relative;
  border: 1px solid rgba(255, 242, 199, 0.38);
  color: var(--ink);
  background: var(--card-back);
  box-shadow:
    0.32rem 0.26rem 0 rgba(6, 16, 20, 0.62),
    0 0.6rem 1rem rgba(0, 0, 0, 0.22),
    inset 0 0 0 0.42rem rgba(255, 255, 255, 0.08);
}

.stock::before {
  content: "";
  position: absolute;
  inset: 0.48rem;
  border: 1px solid rgba(255, 242, 199, 0.38);
  border-radius: 5px;
}

.stock span {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 1.85rem;
  height: 1.85rem;
  margin: auto;
  border-radius: 999px;
  color: #1b242d;
  background:
    linear-gradient(145deg, #ffe08a, var(--gold));
  font-weight: 900;
  box-shadow: 0 0.2rem 0.45rem rgba(0, 0, 0, 0.25);
}

.stock.empty {
  border-style: dashed;
  background: rgba(0, 0, 0, 0.12);
  box-shadow: none;
}

.foundation {
  grid-column: 3 / span 8;
  display: flex;
  gap: var(--table-gap);
}

.foundation-slot {
  display: grid;
  place-items: center;
  border: 1px dashed rgba(255, 242, 199, 0.26);
  color: rgba(255, 242, 199, 0.48);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.045), rgba(0, 0, 0, 0.06)),
    rgba(5, 27, 23, 0.34);
  font-size: 1.6rem;
  font-weight: 800;
  box-shadow: inset 0 0 1rem rgba(0, 0, 0, 0.14);
}

.foundation-slot.filled {
  border-style: solid;
  color: var(--gold);
  background:
    linear-gradient(145deg, rgba(230, 187, 85, 0.2), rgba(255, 255, 255, 0.04)),
    rgba(9, 21, 20, 0.68);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.08),
    0 0.45rem 0.9rem rgba(0, 0, 0, 0.16);
}

.tableau {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(10, var(--card-width));
  align-items: start;
  gap: var(--table-gap);
  min-width: var(--table-width);
  padding: 0 var(--table-padding) 2rem;
}

.pile {
  position: relative;
  min-height: calc(var(--card-height) + 15rem);
  border-radius: 8px;
}

.pile.empty-pile::before,
.pile.empty-drop-target::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: var(--card-width);
  height: var(--card-height);
  border-radius: 8px;
  pointer-events: none;
}

.pile.empty-pile::before {
  border: 1px dashed rgba(255, 242, 199, 0.22);
  background: rgba(3, 24, 20, 0.16);
  box-shadow: inset 0 0 1rem rgba(0, 0, 0, 0.08);
}

.pile.empty-drop-target::before {
  border: 3px solid rgba(230, 187, 85, 0.98);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.18),
    0 0 1rem rgba(230, 187, 85, 0.3);
}

.card {
  position: absolute;
  left: 0;
  width: var(--card-width);
  height: var(--card-height);
  border: 1px solid var(--card-edge);
  border-radius: 8px;
  color: var(--card-ink);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0) 34%),
    linear-gradient(180deg, var(--card), #f4f7fb);
  box-shadow:
    0 0.34rem 0.66rem rgba(5, 17, 17, 0.28),
    inset 0 0 0 1px rgba(255, 255, 255, 0.62),
    inset 0 -0.35rem 0 rgba(53, 70, 96, 0.045);
  user-select: none;
  touch-action: none;
  transition:
    box-shadow 130ms ease,
    filter 130ms ease;
}

.card.face-down {
  background: var(--card-back);
  border-color: rgba(255, 242, 199, 0.24);
}

.card.face-down .card-face {
  display: none;
}

.card.movable {
  cursor: grab;
}

.card.selected {
  box-shadow:
    0 0 0 3px rgba(230, 187, 85, 0.98),
    0 0 1.1rem rgba(230, 187, 85, 0.34),
    0 0.5rem 1rem rgba(9, 20, 18, 0.36);
}

.card.no-target-pulse {
  animation: no-target-pulse 520ms ease-out;
}

.card.drop-target-card {
  box-shadow:
    0 0 0 3px rgba(230, 187, 85, 1),
    0 0 0 6px rgba(230, 187, 85, 0.16),
    0 0 1rem rgba(230, 187, 85, 0.34),
    0 0.45rem 0.85rem rgba(9, 20, 18, 0.34);
}

.card.dragging {
  pointer-events: none;
  z-index: 1000;
  filter: drop-shadow(0 1.1rem 1.2rem rgba(0, 0, 0, 0.34));
  cursor: grabbing;
  transition: none;
}

.card-face {
  height: 100%;
  display: grid;
  grid-template-rows: auto 1fr auto;
  padding: 0.42rem;
}

.corner {
  display: grid;
  justify-items: center;
  justify-self: start;
  align-self: start;
  line-height: 0.95;
  font-weight: 900;
  font-size: clamp(0.82rem, 1.55vw, 1.05rem);
}

.corner.bottom {
  justify-self: end;
  align-self: end;
  transform: rotate(180deg);
}

.suit-main {
  place-self: center;
  font-size: clamp(1.75rem, 4vw, 3.05rem);
  opacity: 0.94;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.55);
}

.red {
  color: var(--red);
}

.black {
  color: var(--black);
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 1rem;
  z-index: 2000;
  max-width: min(26rem, calc(100vw - 2rem));
  padding: 0.75rem 1rem;
  border: 1px solid rgba(230, 187, 85, 0.3);
  border-radius: 8px;
  color: var(--ink);
  background:
    linear-gradient(145deg, rgba(230, 187, 85, 0.13), rgba(255, 255, 255, 0.035)),
    rgba(9, 27, 27, 0.96);
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translate(-50%, 0.75rem);
  pointer-events: none;
  transition:
    opacity 180ms ease,
    transform 180ms ease;
}

.toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

.win-message {
  position: fixed;
  left: 50%;
  top: 50%;
  z-index: 2100;
  display: grid;
  gap: 0.35rem;
  width: min(24rem, calc(100vw - 2rem));
  padding: 1.25rem 1.4rem;
  border: 1px solid rgba(230, 187, 85, 0.38);
  border-radius: 8px;
  color: var(--ink);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.14), transparent 34%),
    linear-gradient(145deg, rgba(230, 187, 85, 0.24), rgba(188, 31, 60, 0.09)),
    rgba(9, 25, 26, 0.98);
  box-shadow:
    0 1.5rem 4rem rgba(0, 0, 0, 0.45),
    inset 0 1px 0 rgba(255, 255, 255, 0.14);
  text-align: center;
  transform: translate(-50%, -50%);
}

.win-message[hidden] {
  display: none;
}

.win-message strong {
  font-size: 1.9rem;
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.5);
}

.win-message span {
  color: var(--muted);
}

@keyframes no-target-pulse {
  0%,
  32%,
  66%,
  100% {
    box-shadow:
      0 0.34rem 0.66rem rgba(5, 17, 17, 0.28),
      inset 0 0 0 1px rgba(255, 255, 255, 0.62),
      inset 0 -0.35rem 0 rgba(53, 70, 96, 0.045);
  }

  16%,
  50% {
    box-shadow:
      0 0 0 3px rgba(230, 187, 85, 0.96),
      0 0 0.85rem rgba(230, 187, 85, 0.28),
      0 0.42rem 0.84rem rgba(5, 17, 17, 0.3);
  }
}

@media (max-width: 760px) {
  :root {
    --card-width: 3.85rem;
    --card-gap: 24px;
    --table-gap: 0.45rem;
    --table-padding: 0.7rem;
  }

  .table-area {
    --card-width: clamp(3.85rem, calc((100cqi - 6.95rem) / 10), 6.7rem);
  }

  .game-shell {
    padding: 0.5rem;
  }

  .table-area {
    min-height: 34rem;
  }

  .floating-actions {
    right: 0.75rem;
    bottom: 0.75rem;
  }
}