/* ソリティア固有スタイル */

.sol-stage {
  position: relative;
  width: 100%;
  max-width: min(100%, 760px);
  margin: 0 auto 14px;
}

.sol-board {
  --sol-card-w: clamp(40px, 12.2vw, 72px);
  --sol-card-h: calc(var(--sol-card-w) * 1.4);
  --sol-gap: clamp(4px, 1.2vw, 10px);
  --sol-radius: clamp(5px, 1.2vw, 10px);
  --sol-board-bg: #0d1730;
  --sol-slot-border: rgba(96, 154, 214, 0.38);
  --sol-neon: #3fc4ff;
  --sol-neon-2: #7a9dff;

  position: relative;
  padding: clamp(10px, 2.2vw, 18px);
  border: 1px solid rgba(96, 154, 214, 0.35);
  border-radius: var(--md-sys-shape-corner-large);
  background:
    radial-gradient(ellipse 80% 50% at 10% 0%, rgba(63, 196, 255, 0.14), transparent 55%),
    radial-gradient(ellipse 70% 45% at 90% 100%, rgba(122, 157, 255, 0.12), transparent 50%),
    var(--sol-board-bg);
  box-shadow: 0 14px 34px rgba(28, 52, 96, 0.24);
  user-select: none;
  -webkit-user-select: none;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

.sol-top {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: var(--sol-gap);
  margin-bottom: clamp(12px, 2.5vw, 20px);
}

.sol-draw {
  display: grid;
  grid-template-columns: var(--sol-card-w) var(--sol-card-w);
  gap: var(--sol-gap);
}

.sol-foundations {
  display: grid;
  grid-template-columns: repeat(4, var(--sol-card-w));
  gap: var(--sol-gap);
  justify-content: end;
}

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

.sol-slot {
  position: relative;
  width: 100%;
  max-width: var(--sol-card-w);
  min-height: var(--sol-card-h);
  margin: 0 auto;
  padding: 0;
  border: 1.5px dashed var(--sol-slot-border);
  border-radius: var(--sol-radius);
  background: rgba(255, 255, 255, 0.03);
  color: inherit;
  cursor: pointer;
}

.sol-slot.is-empty {
  display: flex;
  align-items: center;
  justify-content: center;
}

.sol-slot:not(.is-empty) {
  border-style: solid;
  border-color: transparent;
  background: transparent;
}

.sol-slot.is-invalid {
  animation: sol-shake 280ms ease;
}

@keyframes sol-shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-3px); }
  75% { transform: translateX(3px); }
}

.sol-slot__hint {
  color: rgba(160, 198, 240, 0.45);
  font-family: Outfit, "Noto Sans JP", sans-serif;
  font-size: calc(var(--sol-card-w) * 0.38);
  font-weight: 600;
  line-height: 1;
  pointer-events: none;
}

#sol-stock.is-recycle {
  border-style: solid;
  border-color: rgba(63, 196, 255, 0.55);
  background: rgba(63, 196, 255, 0.08);
}

#sol-stock.is-recycle .sol-slot__hint {
  color: rgba(120, 220, 255, 0.85);
}

.sol-column {
  width: 100%;
  max-width: var(--sol-card-w);
  margin: 0 auto;
}

.sol-column .sol-card {
  position: absolute;
  left: 0;
  right: 0;
  width: 100%;
}

.sol-card {
  position: relative;
  display: block;
  width: var(--sol-card-w);
  height: var(--sol-card-h);
  margin: 0;
  padding: 0;
  border: 1px solid rgba(20, 36, 68, 0.18);
  border-radius: var(--sol-radius);
  box-shadow: 0 2px 6px rgba(8, 16, 36, 0.28);
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  font-family: Outfit, "Noto Sans JP", sans-serif;
  touch-action: manipulation;
  overflow: hidden;
}

.sol-card:disabled {
  cursor: default;
}

.sol-card.is-face {
  color: #1a2438;
  background: linear-gradient(180deg, #ffffff 0%, #f3f7fd 100%);
}

.sol-card[data-color="red"].is-face {
  color: #c62828;
}

.sol-card[data-color="black"].is-face {
  color: #1b2436;
}

.sol-card.is-back {
  pointer-events: none;
  border-color: rgba(90, 170, 255, 0.45);
  background-color: #050b24;
  background-image: url('/images/card-back.webp');
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  box-shadow:
    0 2px 6px rgba(8, 16, 36, 0.35);
}

.sol-card.is-back::after {
  content: none;
}

.sol-card__corner {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1;
  gap: 0;
}

.sol-card__corner--tl {
  top: 4%;
  left: 6%;
}

.sol-card__corner--br {
  right: 6%;
  bottom: 4%;
  transform: rotate(180deg);
}

.sol-card__rank {
  font-size: calc(var(--sol-card-w) * 0.28);
  font-weight: 700;
}

.sol-card__suit {
  font-size: calc(var(--sol-card-w) * 0.22);
  line-height: 1;
}

.sol-card__center {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-size: calc(var(--sol-card-w) * 0.42);
  opacity: 0.92;
  pointer-events: none;
}

.sol-card.is-selected {
  outline: 2px solid var(--sol-neon);
  outline-offset: 1px;
  box-shadow:
    0 0 0 2px rgba(63, 196, 255, 0.35),
    0 0 16px rgba(63, 196, 255, 0.55),
    0 2px 6px rgba(8, 16, 36, 0.28);
  z-index: 5;
}

.sol-card.is-dragging-source {
  opacity: 0.35;
}

.sol-drag-ghost {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
  pointer-events: none;
  filter: drop-shadow(0 10px 18px rgba(8, 18, 40, 0.45));
  opacity: 0.96;
}

.sol-drag-ghost .sol-card {
  box-shadow: 0 4px 12px rgba(8, 16, 36, 0.4);
}

.sol-overlay {
  position: absolute;
  inset: 0;
  z-index: 20;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 20px 16px;
  border-radius: var(--md-sys-shape-corner-large);
  background: rgba(11, 20, 42, 0.92);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  text-align: center;
  animation: sol-fade 220ms ease-out;
}

@keyframes sol-fade {
  from { opacity: 0; }
  to { opacity: 1; }
}

.sol-overlay__title {
  margin: 0;
  color: #e8f4ff;
  font-family: Outfit, "Noto Sans JP", sans-serif;
  font-size: clamp(1.8rem, 6vw, 2.6rem);
  font-weight: 700;
  letter-spacing: 0.08em;
}

.sol-overlay.is-win .sol-overlay__title {
  color: #7ee0ff;
  text-shadow: 0 0 18px rgba(63, 196, 255, 0.55);
}

.sol-overlay__detail {
  margin: 0 0 8px;
  color: rgba(220, 236, 255, 0.9);
  font-size: 0.95rem;
  line-height: 1.5;
}

.sol-overlay__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.sol-overlay__actions .btn {
  min-width: 140px;
}

.sol-guide {
  max-width: min(100%, 760px);
  margin: 0 auto 12px;
  color: var(--md-sys-color-on-surface-variant);
  font-size: 0.88rem;
  line-height: 1.55;
  text-align: center;
}

.game-controls {
  justify-content: center;
}

@media (max-width: 560px) {
  .sol-board {
    --sol-card-w: clamp(36px, 11.8vw, 48px);
    padding: 10px 6px 14px;
  }

  .sol-card__center {
    font-size: calc(var(--sol-card-w) * 0.36);
  }

  .sol-card__rank {
    font-size: calc(var(--sol-card-w) * 0.26);
  }

  .sol-status {
    max-width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .sol-overlay,
  .sol-slot.is-invalid,
  .sol-card.is-selected {
    animation: none;
  }
}

/* 外枠・操作色・HUDは共通ゲーム画面を再利用。7列のカード幅だけ盤面に合わせる。 */
html.gs-playing .game-panel {
  align-items: center;
  gap: 12px;
}

html.gs-playing .game-panel > .gs-bar,
html.gs-playing .sol-status,
html.gs-playing .sol-stage,
html.gs-playing .game-controls {
  flex: none;
  width: 100%;
  max-width: 640px;
  margin: 0;
}

html.gs-playing .sol-stage { container-type: inline-size; }

html.gs-playing .sol-board {
  --sol-gap: clamp(3px, 1cqw, 10px);
  --sol-card-w: min(72px, calc((100cqw - 28px - 6 * var(--sol-gap)) / 7));
  padding: 14px 12px;
  border-color: var(--play-border);
}

html.gs-playing .game-controls { padding: 0; }

/* ドラッグ中はbodyに移した複製にも盤面で算出したカード寸法を渡す。 */
.sol-drag-ghost { visibility: visible; }
.sol-drag-ghost .sol-card { width: 100%; height: var(--sol-card-h); }

@media (min-width: 768px) and (min-height: 700px) {
  html.gs-playing .game-panel {
    padding-top: max(24px, env(safe-area-inset-top));
    gap: 20px;
  }
}