:root {
  --game: #38bdf8;
}

.sol-shell {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: clamp(9px, 2vw, 20px);
  box-shadow: 0 0 40px #38bdf812;
}

.sol-shell h1 {
  margin: 0;
  font-size: clamp(1.4rem, 4vw, 2rem);
}

.sol-sub {
  color: var(--text-dim);
  margin: 2px 0 10px;
  font-size: .88rem;
}

.sol-controls, .sol-hud {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-bottom: 9px;
}

.sol-controls label, .sol-hud {
  font-size: .88rem;
  color: var(--text-dim);
}

.sol-controls select, .sol-controls button {
  min-height: 40px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--surface-2);
  color: var(--text);
  padding: 7px 9px;
  font-size: .84rem;
}

.sol-controls button:focus-visible, .sol-controls select:focus-visible {
  outline: 2px solid var(--game);
}

.sol-hud {
  justify-content: space-between;
}

.sol-hud strong {
  color: var(--text);
}

#daily-note {
  color: var(--game);
  font-size: .86rem;
  min-height: 1.2em;
}

.sol-board {
  --gap: 5px;
  --card: min(96px, calc((100% - 6 * var(--gap)) / 7));
  width: 100%;
  max-width: 702px;
  margin: 0 auto;
  min-height: 280px;
}

.sol-top, .sol-tableau {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: var(--gap);
}

.sol-top {
  margin-bottom: 13px;
}

.sol-pile {
  position: relative;
  width: 100%;
  min-width: 0;
  min-height: 0;
  border-radius: 7px;
}

.sol-top .sol-pile, .sol-tableau .sol-pile.empty {
  aspect-ratio: 5/7;
  min-height: 0;
}

.sol-pile.empty {
  border: 1px dashed #62626e;
  display: grid;
  place-items: center;
  color: #8d8d98;
}

.sol-pile.foundation.empty::before {
  content: attr(data-suit);
  font-size: clamp(21px, 6vw, 42px);
  opacity: .35;
}

.sol-pile.stock.empty {
  font-size: 28px;
  touch-action: none;
  cursor: pointer;
}

.sol-pile.hint {
  outline: 2px solid var(--game);
  outline-offset: 2px;
}

.sol-pile.focused:focus, .sol-pile:focus-visible {
  outline: 2px solid var(--game);
  outline-offset: 2px;
}

.sol-card {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: auto;
  aspect-ratio: 5/7;
  border: 1px solid #dad8e2;
  border-radius: 7px;
  padding: 0;
  background: #f2f1f6;
  color: #202532;
  box-shadow: 0 2px 5px #0007;
  text-align: left;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  touch-action: none;
  cursor: grab;
}

.sol-card.red {
  color: #d6336c;
}

.sol-card .corner {
  position: absolute;
  top: 3px;
  left: 3px;
  font-size: clamp(14px, 2.9vw, 20px);
  line-height: 1;
  font-weight: 800;
  white-space: nowrap;
  letter-spacing: -1px;
}

.sol-card .centre {
  display: grid;
  place-items: center;
  height: 100%;
  font-size: clamp(23px, 5vw, 46px);
  line-height: 1;
}

.sol-card.back {
  border-color: #75d6fb;
  background: repeating-linear-gradient(45deg, #18709b 0 4px, #15577a 4px 8px);
  color: #d9f6ff;
}

.sol-card.back::before {
  content: '';
  position: absolute;
  inset: 5px;
  border: 1px solid #b6e8f7aa;
  border-radius: 3px;
}

.sol-card .back-mark {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 13px;
  background: #146389;
  padding: 5px;
  border-radius: 50%;
}

.sol-card.blocked {
  pointer-events: none;
}

.sol-ghost {
  position: fixed;
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 100;
  opacity: .9;
}

.sol-ghost .sol-card {
  position: absolute;
}

.sol-card.rc-drag-source {
  opacity: .3;
}

.sol-card:focus-visible {
  outline: 2px solid var(--game);
  outline-offset: 2px;
}

.sol-card.shake, .sol-pile.shake {
  animation: sol-shake .25s ease-out;
}

.sol-help {
  color: var(--text-dim);
  font-size: .83rem;
  margin: 13px 0 0;
}

@keyframes sol-shake {
  25% {
    transform: translateX(-3px);
  }
  75% {
    transform: translateX(3px);
  }
}

@media(max-width:500px) {
  .sol-board {
    --gap: 3px;
  }
  .sol-controls {
    gap: 4px;
  }
  .sol-controls select, .sol-controls button {
    padding: 5px 7px;
  }
  .sol-top {
    margin-bottom: 9px;
  }
}

@media(prefers-reduced-motion:reduce) {
  .sol-card.shake, .sol-pile.shake {
    animation: none;
  }
}