/* 金萬オセロだけのスタイル（共通の ui.css のあとに読む） */

.ot-ico {
  width: 1.25em;
  height: 1.25em;
  flex: none;
  vertical-align: -0.28em;
}
.g-hud-label .ot-ico { width: 13px; height: 13px; margin-right: 3px; vertical-align: -2px; }
.g-hud-label { display: inline-flex; align-items: center; }

/* 手番の石を強調 */
.g-hud-item { transition: background-color 0.25s, border-color 0.25s, transform 0.25s; }
.g-hud-item.ot-now {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 14%, var(--chip-hover));
  transform: translateY(1px);
}
.g-hud-item.ot-now .g-hud-label { color: var(--accent); font-weight: 700; }
.g-hud-item.ot-bump .g-hud-value { animation: ot-bump 0.3s cubic-bezier(0.2, 0.9, 0.2, 1.4); }
@keyframes ot-bump { 40% { transform: scale(1.3); } }

/* 手番の札 */
.ot-turn {
  position: fixed;
  z-index: 9;
  top: calc(66px + env(safe-area-inset-top));
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px 7px 12px;
  border-radius: 999px;
  background: var(--chip-hover);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  font-family: var(--mincho);
  font-weight: 800;
  font-size: 16px;
  letter-spacing: 0.1em;
  white-space: nowrap;
  pointer-events: none;
}
.ot-turn[hidden] { display: none; }
.ot-turn .ot-ico { width: 22px; height: 22px; }
.ot-turn.ot-in { animation: ot-turn-in 0.42s cubic-bezier(0.2, 0.9, 0.2, 1.3); }
@keyframes ot-turn-in {
  0% { opacity: 0; transform: translateX(-50%) scale(1.5) rotate(-4deg); filter: blur(4px); }
  60% { opacity: 1; transform: translateX(-50%) scale(0.96); filter: blur(0); }
}
.ot-turn.ot-thinking span::after {
  content: "";
  display: inline-block;
  width: 1.2em;
  text-align: left;
  animation: ot-dots 1.2s steps(4) infinite;
}
@keyframes ot-dots {
  0% { content: ""; }
  25% { content: "・"; }
  50% { content: "・・"; }
  75% { content: "・・・"; }
}

/* 下の切り替えボタン */
.ot-controls[hidden] { display: none; }
.ot-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  letter-spacing: 0.08em;
  padding: 10px 18px 10px 14px;
  box-shadow: var(--shadow);
}
.ot-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid var(--ink-soft);
  transition: background-color 0.2s, border-color 0.2s;
}
.ot-toggle[aria-pressed="true"] {
  border-color: var(--accent);
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, var(--chip-hover));
}
.ot-toggle[aria-pressed="true"] .ot-dot { background: var(--accent); border-color: var(--accent); }
.ot-short { display: none; }
@media (max-width: 640px) {
  .ot-long { display: none; }
  .ot-short { display: inline; }
  .ot-toggle { padding: 10px 16px 10px 12px; min-width: 88px; justify-content: center; }
  .ot-turn { font-size: 15px; top: calc(62px + env(safe-area-inset-top)); }
}

/* スタート画面 */
.ot-row { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.ot-row .g-option { justify-content: center; align-items: center; gap: 6px; }
.ot-side.ot-off { opacity: 0.4; }
.ot-check { align-items: center; margin: 0 0 16px; flex-wrap: wrap; }
.ot-check small { margin-left: 0; flex-basis: 100%; padding-left: 26px; margin-top: -2px; }
.g-lead strong { color: var(--accent); font-weight: 900; }

/* 結果画面 */
.ot-vs { font-size: 20px; margin: 0 0.4em; color: var(--ink-soft); font-family: var(--gothic); vertical-align: 0.5em; }
.ot-wins { margin: 8px 0 0; font-size: 12.5px; color: var(--ink-soft); letter-spacing: 0.06em; }
.g-detail td .ot-ico { margin-right: 4px; }

/* 長い一言は小さめに */
.g-fx .g-big.ot-small { font-size: min(8.6vw, 64px); letter-spacing: 0.06em; }

@media (max-width: 640px) {
  .g-card-title { font-size: 36px; }
  .g-rules { font-size: 12.5px; }
}

/* あそびかたは横並びの 3 択に */
.g-card > .g-options:not(.ot-side) { grid-template-columns: repeat(3, 1fr); }
.g-card > .g-options:not(.ot-side) legend { grid-column: 1 / -1; }
.g-card > .g-options:not(.ot-side) .g-option {
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 10px 6px;
  text-align: center;
  line-height: 1.35;
  position: relative;
}
.g-card > .g-options:not(.ot-side) .g-option input { margin: 0; }
.g-card > .g-options:not(.ot-side) .g-option small { margin: 0; font-size: 11px; }
.g-card { padding: 22px 22px 20px; }
.g-card-title { margin: 4px 0 6px; }
.g-lead { margin-bottom: 10px; line-height: 1.8; }
.g-rules { margin-bottom: 12px; padding: 10px 14px; line-height: 1.7; }
.g-options { margin-bottom: 12px; }
@media (hover: none) {
  .g-rules li:has(.ot-kbd) { display: none; }
}
.ot-turn { transition: opacity 0.25s; }
.ot-turn.ot-busy { opacity: 0.55; }
.g-lead { text-wrap: balance; }
.g-rules li, .ot-check small { text-wrap: pretty; }

/* 背の低い横長の画面（スマホの横向きなど）: 札は上の列に、切り替えは右に縦並び */
@media (max-height: 520px) and (min-aspect-ratio: 4/3) {
  .ot-turn { top: calc(14px + env(safe-area-inset-top)); }
  .ot-controls {
    left: auto;
    right: calc(12px + env(safe-area-inset-right));
    bottom: calc(12px + env(safe-area-inset-bottom));
    flex-direction: column;
    align-items: stretch;
    padding: 0;
  }
  .ot-toggle { justify-content: flex-start; }
}