/* 影翻棋 · 对局页：顶栏、双方面板、棋盘、上一手 */

.game {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

.game__hills {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 220px;
  pointer-events: none;
}

.game__noscript {
  margin: 40px auto;
  font-size: 18px;
  text-align: center;
}

/* ===== 顶栏 ===== */
.topbar {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 16px 32px;
  border-bottom: 1px solid var(--line);
}

.topbar__back {
  display: none;
}

.topbar__brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.topbar__seal {
  --frame: 2.5px;
  width: 40px;
  height: 40px;
  font-size: 16px;
  border-radius: 4px 7px 5px 8px;
  transform: rotate(-4deg);
}

.topbar__name {
  font-family: var(--font-brush);
  font-size: 28px;
  line-height: 1;
}

.topbar__status {
  display: flex;
  align-items: center;
  gap: 16px;
}

.topbar__moveno {
  font-size: 15px;
  letter-spacing: 0.1em;
  color: var(--ink-mute);
}

.topbar__sep {
  width: 1px;
  height: 18px;
  background: var(--line-strong);
}

.turn {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 21px;
  font-weight: 700;
  color: var(--ink);
}

.turn__dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--ink);
  box-shadow: 0 0 0 4px rgba(29, 26, 23, 0.14);
}

.turn[data-side='red'] {
  color: var(--piece-red);
}

.turn[data-side='red'] .turn__dot {
  background: var(--cinnabar);
  box-shadow: 0 0 0 4px rgba(179, 48, 30, 0.18);
}

.turn[data-side='none'] .turn__dot {
  display: none;
}

.topbar__tools {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ===== 桌面布局：黑方面板 | 棋盘 | 红方面板 ===== */
.table {
  /* 格距随视口高度缩放，其余尺寸都由格距推出 */
  --cell: clamp(46px, calc((100vh - 250px) / 11), 58px);
  --pad: calc(var(--cell) - 18px);
  --pc: calc(var(--cell) * 0.778 + 4.9px);
  --frame-pad: calc(var(--cell) * 0.333 - 7.3px);
  --board-w: calc(var(--cell) * 10 - 36px);
  --board-h: calc(var(--cell) * 11 - 36px);
  --frame-w: calc(var(--board-w) + var(--frame-pad) * 2);
  position: relative;
  z-index: 1;
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: stretch;
  gap: clamp(24px, 3vw, 48px);
  padding: 24px 32px 28px;
}

.table__center {
  flex: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

/* ===== 双方面板 ===== */
.side {
  --tint: rgba(29, 26, 23, 0.05);
  position: relative;
  flex: 0 1 288px;
  min-width: 0;
  align-self: flex-start;
  display: grid;
  grid-template-columns: 50px minmax(0, 1fr);
  grid-template-areas:
    'general id'
    'stats stats'
    'fallen fallen'
    'actions actions'
    'note note';
  column-gap: 14px;
  row-gap: 20px;
  padding: 22px;
  background: rgba(251, 247, 238, 0.92);
  border: 1px solid rgba(29, 26, 23, 0.14);
  border-radius: 4px;
  box-shadow: 0 14px 30px rgba(60, 40, 20, 0.08);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.side--red {
  --tint: rgba(179, 48, 30, 0.06);
  align-self: flex-end;
}

.side.is-active {
  background: rgba(251, 247, 238, 0.96);
  border-color: rgba(29, 26, 23, 0.55);
  box-shadow: 0 0 0 0.5px rgba(29, 26, 23, 0.55), 0 0 0 5px rgba(29, 26, 23, 0.07), 0 16px 34px rgba(60, 40, 20, 0.12);
}

.side--red.is-active {
  border-color: rgba(179, 48, 30, 0.6);
  box-shadow: 0 0 0 0.5px rgba(179, 48, 30, 0.6), 0 0 0 5px rgba(179, 48, 30, 0.08), 0 16px 34px rgba(120, 40, 20, 0.12);
}

.side__tag {
  position: absolute;
  top: -15px;
  right: 18px;
  display: none;
  padding: 4px 12px;
  border-radius: 2px;
  background: var(--ink);
  color: var(--paper);
  font-size: 14px;
  letter-spacing: 0.24em;
  transform: rotate(2deg);
  box-shadow: 0 2px 0 #000;
}

.side--red .side__tag {
  background: var(--cinnabar);
  color: var(--seal-text);
  box-shadow: 0 2px 0 var(--cinnabar-deep);
}

.side.is-active .side__tag {
  display: block;
}

.side__general {
  grid-area: general;
  width: 50px;
  height: 50px;
  font-size: 27px;
  align-self: center;
}

.side__id {
  grid-area: id;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
}

.side__name {
  margin: 0;
  font-family: var(--font-brush);
  font-weight: 400;
  font-size: 32px;
  line-height: 1;
}

.side--red .side__name {
  color: var(--piece-red);
}

.side__hint {
  margin: 0;
  font-size: 14px;
  line-height: 1.5;
  color: var(--ink-mute);
}

.side__counts {
  display: none;
  margin: 0;
  font-size: 12px;
  color: var(--ink-mute);
}

.side__stats {
  grid-area: stats;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.stat {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: var(--tint);
  border-radius: 3px;
}

.stat__pc {
  width: 24px;
  height: 24px;
  font-size: 13px;
}

.stat__pc.pc-lq {
  font-size: 11px;
}

.stat__body {
  display: flex;
  flex-direction: column;
}

.stat__label {
  font-size: 12px;
  color: var(--ink-mute);
}

.stat__value {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.15;
}

.side__fallen {
  grid-area: fallen;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.side__fallen-head {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  color: var(--ink-mute);
}

.side__fallen-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  min-height: 50px;
  padding: 9px;
  background: var(--tint);
  border-radius: 3px;
}

.side__fallen-list .pc {
  width: 32px;
  height: 32px;
  font-size: 17px;
  opacity: 0.85;
}

.side__actions {
  grid-area: actions;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  padding-top: 16px;
  border-top: 1px dashed rgba(29, 26, 23, 0.2);
}

.side__btn {
  padding: 0 10px;
  font-size: 17px;
}

.side__note {
  grid-area: note;
  margin: -10px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-mute);
}

.side__status {
  display: none;
  grid-area: status;
}

/* ===== 棋盘 ===== */
.board-frame {
  padding: var(--frame-pad);
  border-radius: 6px;
  background: linear-gradient(145deg, #8E5C2C, #6A3F1E 60%, #5A3418);
  box-shadow:
    inset 0 1px 0 rgba(255, 220, 170, 0.35),
    0 2px 0 #3F2410,
    0 26px 50px rgba(60, 35, 15, 0.3);
}

.board {
  position: relative;
  width: var(--board-w);
  height: var(--board-h);
  border-radius: 2px;
  background:
    radial-gradient(ellipse at 28% 16%, rgba(255, 244, 215, 0.6), rgba(255, 244, 215, 0) 58%),
    linear-gradient(180deg, #E9CE9B, #D5B076);
  touch-action: manipulation;
  user-select: none;
  -webkit-user-select: none;
}

.board__wood {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  mix-blend-mode: multiply;
  opacity: 0.5;
}

.board__grid {
  position: absolute;
  left: var(--pad);
  top: var(--pad);
  width: calc(var(--cell) * 8);
  height: calc(var(--cell) * 9);
  overflow: visible;
  fill: none;
  stroke: var(--wood-ink);
  stroke-width: 1.2px;
}

.board__grid path {
  vector-effect: non-scaling-stroke;
}

.board__grid .board__frame-line {
  stroke-width: 2.4px;
}

.board__river {
  position: absolute;
  left: var(--pad);
  top: calc(var(--pad) + var(--cell) * 4);
  width: calc(var(--cell) * 8);
  height: var(--cell);
  display: flex;
  align-items: center;
  justify-content: space-around;
  font-family: var(--font-brush);
  font-size: calc(var(--cell) * 0.556 + 1.8px);
  letter-spacing: 0.6em;
  color: rgba(74, 51, 32, 0.78);
}

.board__layer {
  position: absolute;
  inset: 0;
}

.board__piece,
.mark,
.point {
  position: absolute;
  left: calc(var(--pad) + var(--c) * var(--cell) - var(--s) / 2);
  top: calc(var(--pad) + var(--r) * var(--cell) - var(--s) / 2);
  width: var(--s);
  height: var(--s);
}

.board__piece {
  --s: var(--pc);
  font-size: calc(var(--pc) * 0.5 + 2px);
  transition:
    left 0.32s cubic-bezier(0.3, 0.7, 0.3, 1),
    top 0.32s cubic-bezier(0.3, 0.7, 0.3, 1),
    translate 0.18s ease,
    scale 0.18s ease,
    filter 0.18s ease;
}

.board__piece.pc-lq {
  font-size: calc(var(--pc) * 0.43 + 1.5px);
}

.board__piece.is-lifted {
  z-index: 2;
  translate: 0 calc(var(--pc) * -0.12);
  filter: drop-shadow(0 10px 6px rgba(40, 25, 10, 0.28));
}

.board__piece.is-flying {
  z-index: 5;
  scale: 1.12;
  filter: drop-shadow(0 14px 8px rgba(40, 25, 10, 0.3));
}

.board__piece.is-returning {
  z-index: 5;
}

.board__piece.is-taken {
  animation: piece-taken 0.22s ease-in forwards;
}

.board__piece.is-entering {
  animation: piece-in 0.28s ease-out;
}

@keyframes piece-taken {
  to {
    opacity: 0;
    scale: 0.7;
  }
}

@keyframes piece-in {
  from {
    opacity: 0;
    scale: 0.85;
  }
}

/* 棋盘标记 */
.mark {
  pointer-events: none;
}

.mark--hint {
  --s: calc(var(--pc) * 0.29 + 1.5px);
  border-radius: 50%;
  background: rgba(29, 26, 23, 0.45);
  box-shadow: 0 0 0 4px rgba(250, 240, 215, 0.35);
}

.mark--from {
  --s: calc(var(--pc) * 0.43 + 2.5px);
  border: 1.5px dashed rgba(74, 51, 32, 0.75);
  border-radius: 50%;
}

.mark--cap {
  --s: calc(var(--pc) * 1.28 - 4px);
  border: 2.5px solid var(--cinnabar);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(179, 48, 30, 0.2);
}

/* 四角括号：选中（朱砂）与上一手落点（墨褐） */
.mark--sel,
.mark--to {
  background:
    linear-gradient(var(--k), var(--k)) left top / var(--len) var(--w) no-repeat,
    linear-gradient(var(--k), var(--k)) left top / var(--w) var(--len) no-repeat,
    linear-gradient(var(--k), var(--k)) right top / var(--len) var(--w) no-repeat,
    linear-gradient(var(--k), var(--k)) right top / var(--w) var(--len) no-repeat,
    linear-gradient(var(--k), var(--k)) left bottom / var(--len) var(--w) no-repeat,
    linear-gradient(var(--k), var(--k)) left bottom / var(--w) var(--len) no-repeat,
    linear-gradient(var(--k), var(--k)) right bottom / var(--len) var(--w) no-repeat,
    linear-gradient(var(--k), var(--k)) right bottom / var(--w) var(--len) no-repeat;
}

.mark--sel {
  --s: calc(var(--pc) * 1.28);
  --k: var(--cinnabar);
  --len: calc(var(--pc) * 0.3 + 1px);
  --w: calc(var(--pc) * 0.036 + 1.2px);
  z-index: 3;
}

.mark--to {
  --s: calc(var(--pc) * 1.28 - 4px);
  --k: #6E4A22;
  --len: calc(var(--pc) * 0.214 + 0.3px);
  --w: 2px;
}

/* 落点按钮：透明，覆盖每个交叉点 */
.point {
  --s: var(--cell);
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  cursor: default;
  -webkit-tap-highlight-color: transparent;
}

.point.is-actionable {
  cursor: pointer;
}

.point:focus-visible {
  outline-offset: -3px;
}

/* ===== 上一手 ===== */
.lastmove {
  width: var(--frame-w);
  max-width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.lastmove__info {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  line-height: 1.5;
  color: var(--ink-2);
}

.lastmove__tag {
  flex: none;
  padding: 2px 8px;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--ink-mute);
}

.lastmove__pc {
  width: 28px;
  height: 28px;
  font-size: 15px;
}

.lastmove__pc.pc-lq {
  font-size: 13px;
}

.lastmove__btn {
  flex: none;
  padding: 0 20px;
  letter-spacing: 0.1em;
}

.lastmove__btn[hidden] {
  display: none;
}

/* ===== 窄屏：面板叠在棋盘上下 ===== */
@media (max-width: 1179px) {
  .table {
    --cell: min(56px, calc((100vw + 36px) / 10.7));
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    gap: 12px;
    padding: 16px 7px 24px;
  }

  .table__center {
    display: contents;
  }

  .side--black {
    order: 1;
  }

  .board-frame {
    order: 2;
  }

  .side--red {
    order: 3;
  }

  .lastmove {
    order: 4;
    width: calc(var(--frame-w) - 14px);
  }

  .side {
    flex: none;
    align-self: center;
    width: var(--frame-w);
    max-width: 100%;
    grid-template-columns: 36px minmax(0, 1fr) auto;
    grid-template-areas:
      'general id actions'
      'general fallen actions'
      'status status status';
    column-gap: 10px;
    row-gap: 5px;
    padding: 10px 12px;
    box-shadow: none;
  }

  .side.is-active {
    box-shadow: 0 0 0 0.5px rgba(29, 26, 23, 0.55), 0 0 0 4px rgba(29, 26, 23, 0.07);
  }

  .side--red.is-active {
    box-shadow: 0 0 0 0.5px rgba(179, 48, 30, 0.6), 0 0 0 4px rgba(179, 48, 30, 0.08);
  }

  .side.is-active .side__tag,
  .side__stats,
  .side__hint,
  .side__note,
  .side__fallen-count {
    display: none;
  }

  .side__general {
    --ring: 1.2px;
    --d1: 1.5px;
    --d2: 3px;
    --d3: 5px;
    --blur: 7px;
    width: 36px;
    height: 36px;
    font-size: 20px;
  }

  .side__id {
    flex-direction: row;
    justify-content: flex-start;
    align-items: baseline;
    gap: 8px;
  }

  .side__name {
    font-size: 22px;
  }

  .side__counts {
    display: block;
  }

  .side__fallen {
    flex-direction: row;
    align-items: center;
    gap: 6px;
    min-height: 22px;
  }

  .side__fallen-head {
    flex: none;
    font-size: 12px;
  }

  .side__fallen-list {
    gap: 4px;
    min-height: 0;
    padding: 0;
    background: none;
  }

  .side__fallen-list .pc {
    --ring: 1.2px;
    --d1: 1px;
    --d2: 2px;
    --d3: 3px;
    --blur: 4px;
    width: 22px;
    height: 22px;
    font-size: 12px;
  }

  .side__actions {
    align-self: center;
    display: flex;
    gap: 6px;
    padding: 0;
    border: 0;
  }

  .side__btn {
    padding: 0 12px;
    gap: 5px;
    font-size: 15px;
  }

  .side__btn .icon {
    width: 16px;
    height: 16px;
  }

  /* 暂不可用的按钮只留图标 */
  .side__btn[aria-disabled='true'] {
    width: 44px;
    padding: 0;
  }

  .side__btn[aria-disabled='true'] .side__btn-label {
    display: none;
  }

  .side__status {
    display: flex;
    align-items: center;
    gap: 8px;
    min-height: 38px;
    margin: 5px 0 0;
    padding: 8px 10px;
    background: var(--tint);
    border-radius: 3px;
    font-size: 14px;
    line-height: 1.45;
    color: var(--ink-2);
  }

  .side.is-active .side__status {
    background: rgba(29, 26, 23, 0.07);
  }

  .side--red.is-active .side__status {
    background: rgba(179, 48, 30, 0.07);
  }

  .side__status-text {
    min-width: 0;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
  }

  .side__status-pc {
    --ring: 1px;
    --d1: 1px;
    --d2: 2px;
    --d3: 3px;
    --blur: 4px;
    width: 22px;
    height: 22px;
    font-size: 12px;
  }

  .side__status-pc.pc-lq {
    font-size: 10px;
  }

  .side__status-pc[hidden] {
    display: none;
  }

  .lastmove__info {
    gap: 7px;
    font-size: 13px;
  }

  .lastmove__tag {
    padding: 1px 6px;
    font-size: 12px;
    letter-spacing: 0;
  }

  .lastmove__pc {
    display: none;
  }

  .lastmove__btn {
    padding: 0 16px;
    font-size: 15px;
    letter-spacing: 0;
  }
}

/* ===== 手机 ===== */
@media (max-width: 640px) {
  .game {
    padding: 8px 0 16px;
  }

  .topbar {
    flex-wrap: nowrap;
    gap: 4px;
    padding: 0 10px;
    border-bottom: 0;
  }

  .topbar__back {
    display: inline-flex;
    border: 0;
  }

  .topbar__back .icon {
    width: 21px;
    height: 21px;
  }

  .topbar__brand,
  .topbar__home,
  .topbar__sep,
  .topbar__label,
  .music__dot {
    display: none;
  }

  .music-toggle[aria-pressed] .music__on,
  .music-toggle[aria-pressed] .music__off {
    display: none;
  }

  .topbar__status {
    gap: 10px;
    min-width: 0;
  }

  .topbar__moveno {
    font-size: 13px;
    letter-spacing: 0;
    white-space: nowrap;
  }

  .turn {
    gap: 7px;
    font-size: 17px;
    white-space: nowrap;
  }

  .turn__dot,
  .turn[data-side='red'] .turn__dot {
    width: 9px;
    height: 9px;
    box-shadow: 0 0 0 3px rgba(29, 26, 23, 0.14);
  }

  .turn[data-side='red'] .turn__dot {
    box-shadow: 0 0 0 3px rgba(179, 48, 30, 0.18);
  }

  .topbar__tools {
    gap: 2px;
  }

  .topbar__tool {
    width: 44px;
    justify-content: center;
    padding: 0;
    border: 0;
  }

  .topbar__tool .icon {
    width: 20px;
    height: 20px;
  }

  .music-toggle[aria-pressed='true'] {
    color: var(--cinnabar);
  }

  .table {
    gap: 10px;
    padding: 2px 7px 0;
  }

  .board-frame {
    border-radius: 5px;
    box-shadow:
      inset 0 1px 0 rgba(255, 220, 170, 0.35),
      0 2px 0 #3F2410,
      0 16px 30px rgba(60, 35, 15, 0.28);
  }

  .board__grid {
    stroke-width: 1px;
  }

  .board__grid .board__frame-line {
    stroke-width: 2px;
  }

  .board__river {
    letter-spacing: 0.5em;
  }

  .board__piece {
    --ring: 1.2px;
    --d1: 1.5px;
    --d2: 3px;
    --d3: 5px;
    --blur: 7px;
  }

  .mark--hint {
    box-shadow: 0 0 0 3px rgba(250, 240, 215, 0.35);
  }

  .mark--cap {
    border-width: 2px;
    box-shadow: 0 0 0 3px rgba(179, 48, 30, 0.2);
  }
}