/* ============================================================
   角斗士棋 · 移动优先样式
   ============================================================ */

:root {
  --bg: #0b1220;
  --bg-2: #101a2e;
  --card: #16213a;
  --card-2: #1e2b4a;
  --line: #27385c;
  --line-soft: #1f2e4d;
  --text: #e9effb;
  --muted: #8ea2c8;
  --primary: #4f8cff;
  --primary-2: #3a6fe0;
  --ok: #34d399;
  --warn: #fbbf24;
  --danger: #f0554f;

  --c0: #3b82f6;
  --c1: #eab308;
  --c2: #ef4444;
  --c3: #22c55e;

  --r: 14px;
  --r-sm: 10px;
  --safe-t: env(safe-area-inset-top, 0px);
  --safe-b: env(safe-area-inset-bottom, 0px);
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

/*
 * 必须放在最前面，而且必须带 !important。
 * hidden 属性只靠 UA 样式表里的 display:none 生效，而下面给 .conn-bar /
 * .modal / .icon-btn 都写了 display:flex|grid —— 作者样式优先级更高，
 * 会把 hidden 顶掉，导致连接条和结算浮层永远显示在屏幕上。
 */
[hidden] {
  display: none !important;
}

html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
  overscroll-behavior: none;
}

body {
  background: radial-gradient(1200px 700px at 50% -10%, #16233f 0%, var(--bg) 55%) fixed;
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB',
    'Microsoft YaHei', 'Segoe UI', system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.5;
}

input,
button,
textarea {
  font: inherit;
  color: inherit;
}

/* ---------------------------- 屏幕 ---------------------------- */

.screen {
  display: none;
  max-width: 560px;
  margin: 0 auto;
  padding: calc(12px + var(--safe-t)) 12px calc(24px + var(--safe-b));
  min-height: 100%;
}

.screen.is-active {
  display: block;
}

.screen-game.is-active {
  display: flex;
  flex-direction: column;
  height: 100dvh;
  max-width: 720px;
  padding: calc(6px + var(--safe-t)) 8px calc(6px + var(--safe-b));
  min-height: 0;
  overflow: hidden;
}

/* ---------------------------- 连接条 ---------------------------- */

.conn-bar {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 60;
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: center;
  padding: calc(6px + var(--safe-t)) 10px 6px;
  background: #7c2d12;
  color: #fff;
  font-size: 13px;
}

.conn-bar.is-ok {
  background: #14532d;
}

.conn-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #fbbf24;
  animation: pulse 1.2s ease-in-out infinite;
}

.conn-bar.is-ok .conn-dot {
  background: var(--ok);
  animation: none;
}

@keyframes pulse {
  50% {
    opacity: 0.25;
  }
}

/* ---------------------------- 首页 ---------------------------- */

.brand {
  text-align: center;
  padding: 26px 0 18px;
}

.brand h1 {
  margin: 12px 0 4px;
  font-size: 30px;
  letter-spacing: 4px;
}

.brand-sub {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.brand-mark {
  display: flex;
  justify-content: center;
  gap: 6px;
}

.brand-mark span {
  width: 22px;
  height: 22px;
  border-radius: 5px;
  background: var(--c);
  box-shadow: 0 0 14px color-mix(in srgb, var(--c) 55%, transparent);
}

.brand-mark span:nth-child(2) {
  transform: translateY(-7px);
}
.brand-mark span:nth-child(3) {
  transform: translateY(7px);
}

/* ---------------------------- 卡片 ---------------------------- */

.card {
  background: linear-gradient(180deg, var(--card) 0%, var(--bg-2) 100%);
  border: 1px solid var(--line-soft);
  border-radius: var(--r);
  padding: 14px;
  margin-bottom: 12px;
}

.card-title {
  font-weight: 600;
  margin-bottom: 10px;
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.card-title .sub,
.sub {
  color: var(--muted);
  font-size: 12px;
  font-weight: 400;
}

.hint {
  color: var(--muted);
  font-size: 12.5px;
  margin: 10px 0 0;
}

.rules-card summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}

.rules-card summary::-webkit-details-marker {
  display: none;
}

.rules-card summary::after {
  content: '▾';
  float: right;
  color: var(--muted);
}

.rules-card[open] summary::after {
  content: '▴';
}

.rules-body {
  margin-top: 10px;
  font-size: 13.5px;
  color: #c8d6ef;
}

.rules-body h4 {
  margin: 14px 0 6px;
  font-size: 13px;
  color: var(--primary);
}

.rules-body ol,
.rules-body ul {
  margin: 0;
  padding-left: 20px;
}

.rules-body li {
  margin-bottom: 5px;
}

.rules-body b {
  color: #fff;
}

/* ---------------------------- 表单 ---------------------------- */

.field {
  display: block;
  margin-bottom: 12px;
}

.field > span {
  display: block;
  font-size: 12.5px;
  color: var(--muted);
  margin-bottom: 5px;
}

input[type='text'],
input:not([type]),
.field input {
  width: 100%;
  padding: 12px 13px;
  border-radius: var(--r-sm);
  border: 1px solid var(--line);
  background: #0e1729;
  outline: none;
}

input:focus {
  border-color: var(--primary);
}

.code-input {
  text-transform: uppercase;
  letter-spacing: 6px;
  text-align: center;
  font-size: 20px;
  font-weight: 700;
}

.join-row {
  display: flex;
  gap: 8px;
}

.join-row .code-input {
  flex: 1;
  min-width: 0;
}

.divider {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 12px;
  margin: 16px 0 12px;
}

.divider::before,
.divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--line-soft);
}

/* ---------------------------- 按钮 ---------------------------- */

.btn {
  border: 1px solid var(--line);
  background: var(--card-2);
  color: var(--text);
  border-radius: var(--r-sm);
  padding: 11px 15px;
  cursor: pointer;
  font-weight: 500;
  transition: transform 0.08s ease, filter 0.15s ease;
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.97);
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-primary {
  background: linear-gradient(180deg, var(--primary) 0%, var(--primary-2) 100%);
  border-color: transparent;
  color: #fff;
  font-weight: 600;
}

.btn-lg {
  padding: 14px 18px;
  font-size: 16px;
}

.btn-block {
  display: block;
  width: 100%;
}

.btn-ghost {
  background: transparent;
  border-color: var(--line-soft);
  color: var(--muted);
}

.icon-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--card-2);
  color: var(--text);
  cursor: pointer;
  display: grid;
  place-items: center;
  font-size: 15px;
}

/* ---------------------------- 分段控件 ---------------------------- */

.seg-label {
  font-size: 12px;
  color: var(--muted);
  margin: 12px 0 6px;
}

.seg {
  display: flex;
  gap: 4px;
  background: #0e1729;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-sm);
  padding: 3px;
  margin-bottom: 4px;
}

.seg-btn {
  flex: 1;
  border: 0;
  background: transparent;
  color: var(--muted);
  padding: 9px 4px;
  border-radius: 7px;
  cursor: pointer;
  font-size: 13.5px;
}

.seg-btn.is-active {
  background: var(--primary);
  color: #fff;
  font-weight: 600;
}

.seg.is-locked {
  opacity: 0.5;
  pointer-events: none;
}

/* ---------------------------- 座位 ---------------------------- */

.seat-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.seat-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--r-sm);
  border: 1px solid var(--line-soft);
  background: #101a2e;
  border-left: 4px solid var(--c);
  cursor: pointer;
}

.seat-card.is-me {
  background: #16294a;
  border-color: var(--primary);
}

.seat-card.is-open {
  border-left-style: dashed;
  opacity: 0.75;
}

.seat-card.is-turn {
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--c) 60%, transparent);
}

.seat-color {
  width: 20px;
  height: 20px;
  border-radius: 5px;
  background: var(--c);
  flex: none;
}

.seat-main {
  flex: 1;
  min-width: 0;
}

.seat-name {
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.seat-meta {
  font-size: 11.5px;
  color: var(--muted);
}

.seat-tags {
  display: flex;
  gap: 4px;
  flex: none;
}

.tag {
  font-size: 10.5px;
  padding: 2px 6px;
  border-radius: 999px;
  background: #24344f;
  color: var(--muted);
  white-space: nowrap;
}

.tag.ok {
  background: #14532d;
  color: #86efac;
}

.tag.warn {
  background: #4a2f10;
  color: #fcd34d;
}

.tag.you {
  background: var(--primary);
  color: #fff;
}

.tag.off {
  background: #4a1d1d;
  color: #fca5a5;
}

/* ---------------------------- 分享 ---------------------------- */

.share-card {
  text-align: center;
}

.share-code {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 12px;
}

.share-label {
  font-size: 11.5px;
  color: var(--muted);
}

.share-code strong {
  font-size: 36px;
  letter-spacing: 10px;
  text-indent: 10px;
  color: var(--primary);
  font-weight: 800;
}

.share-actions {
  display: flex;
  gap: 8px;
}

.share-actions .btn {
  flex: 1;
}

/* ---------------------------- 排行榜 ---------------------------- */

.leaderboard {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: rank;
}

.leaderboard li {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 13.5px;
}

.leaderboard li:last-child {
  border-bottom: 0;
}

.leaderboard li::before {
  counter-increment: rank;
  content: counter(rank);
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #24344f;
  color: var(--muted);
  font-size: 11px;
  display: grid;
  place-items: center;
  flex: none;
}

.leaderboard li:first-child::before {
  background: var(--warn);
  color: #3b2a00;
  font-weight: 700;
}

.leaderboard .lb-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.leaderboard .lb-score {
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.leaderboard .lb-score.pos {
  color: var(--ok);
}
.leaderboard .lb-score.neg {
  color: var(--danger);
}

.leaderboard li.empty {
  color: var(--muted);
  font-size: 13px;
}

.leaderboard li.empty::before {
  content: '–';
  background: transparent;
}

/* ---------------------------- 聊天 ---------------------------- */

.chat-log {
  max-height: 170px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 5px;
  margin-bottom: 8px;
  font-size: 13.5px;
}

.chat-line {
  color: #c8d6ef;
  word-break: break-word;
}

.chat-line b {
  color: var(--primary);
  margin-right: 4px;
}

.chat-line.system {
  color: var(--muted);
  font-size: 12.5px;
  font-style: italic;
}

.chat-form {
  display: flex;
  gap: 8px;
}

.chat-form input {
  flex: 1;
  min-width: 0;
}

/* ============================================================
   对局界面
   ============================================================ */

.game-top {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

/* ── 对局中的玩家状态条 ──────────────────────────────────────
   四个人各自在线/离线一眼可见。窄屏放不下时横向滚动，不换行挤压棋盘。 */
.players-bar {
  display: flex;
  gap: 6px;
  padding: 0 10px 8px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.players-bar::-webkit-scrollbar {
  display: none;
}

.player-chip {
  --c: var(--muted);
  flex: 1 1 0;
  min-width: 78px;
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 5px 7px;
  border-radius: var(--r-sm);
  background: var(--card);
  border: 1px solid var(--line-soft);
  font-size: 11px;
  line-height: 1.2;
  transition: border-color 0.15s, background 0.15s;
}
.player-chip.is-turn {
  border-color: var(--c);
  background: var(--card-2);
}
.player-chip.is-me .pc-name {
  font-weight: 700;
}

.pc-dot {
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c);
}

.pc-name {
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text);
}

.pc-state {
  flex: none;
  font-size: 10px;
  color: var(--ok);
}

/* 离线：整条压暗，状态文字用警示色 */
.player-chip.is-offline .pc-name {
  opacity: 0.5;
}
.player-chip.is-offline .pc-dot {
  opacity: 0.3;
}
.player-chip.is-offline .pc-state {
  color: var(--warn);
}

/* 重连中：自己掉线了，服务端此刻也联系不上我，所以这个状态只有前端知道 */
.player-chip.is-reconnecting {
  animation: pc-pulse 1.2s ease-in-out infinite;
}
.player-chip.is-reconnecting .pc-state {
  color: var(--warn);
}

@keyframes pc-pulse {
  50% {
    opacity: 0.45;
  }
}

@media (prefers-reduced-motion: reduce) {
  .player-chip.is-reconnecting {
    animation: none;
  }
}

.turn-banner {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--card);
  border: 1px solid var(--line-soft);
  font-size: 13.5px;
  min-width: 0;
}

.turn-banner.is-mine {
  border-color: var(--primary);
  background: #17294a;
}

.turn-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--muted);
  flex: none;
}

.turn-banner.is-mine .turn-dot {
  animation: pulse 1.1s ease-in-out infinite;
}

/* 思考时间只剩几秒：横幅转成警示色 */
.turn-banner.is-urgent {
  background: #2a2416;
}
.turn-banner.is-urgent .turn-text {
  color: var(--warn);
}

.turn-text {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.top-actions {
  display: flex;
  gap: 6px;
}

.board-wrap {
  position: relative;
  flex: 1;
  min-height: 0;
  display: grid;
  place-items: center;
  touch-action: none;
}

#board {
  display: block;
  border-radius: 10px;
  background: #0a1020;
  box-shadow: 0 4px 26px rgba(0, 0, 0, 0.45);
  touch-action: none;
}

.board-tip {
  position: absolute;
  left: 50%;
  bottom: 6px;
  transform: translateX(-50%);
  background: rgba(8, 14, 26, 0.88);
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  pointer-events: none;
  max-width: 92%;
  text-align: center;
}

.game-actions {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  margin: 8px 0 4px;
}

.action-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  padding: 7px 2px;
  border-radius: var(--r-sm);
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--text);
  cursor: pointer;
}

.action-btn b {
  font-size: 17px;
  line-height: 1;
}

.action-btn span {
  font-size: 11px;
  color: var(--muted);
}

.action-btn.is-primary {
  background: linear-gradient(180deg, var(--primary) 0%, var(--primary-2) 100%);
  border-color: transparent;
}

.action-btn.is-primary span {
  color: rgba(255, 255, 255, 0.85);
}

.action-btn:disabled {
  opacity: 0.38;
}

.tray-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--muted);
  padding: 2px 4px;
}

.snap-toggle {
  display: flex;
  align-items: center;
  gap: 5px;
}

.snap-toggle input {
  width: auto;
  accent-color: var(--primary);
}

.tray {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 6px 2px 8px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  min-height: 62px;
}

.tray::-webkit-scrollbar {
  display: none;
}

.tray-item {
  flex: none;
  padding: 4px;
  border-radius: 9px;
  border: 1px solid var(--line-soft);
  background: #0e1729;
  cursor: pointer;
  display: grid;
  place-items: center;
}

.tray-item canvas {
  display: block;
}

.tray-item.is-active {
  border-color: var(--primary);
  background: #17294a;
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--primary) 45%, transparent);
}

.tray-item.is-disabled {
  opacity: 0.3;
}

.tray-empty {
  color: var(--muted);
  font-size: 13px;
  align-self: center;
  padding: 0 8px;
}

/* ---------------------------- 抽屉 ---------------------------- */

.sheet-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(4, 8, 16, 0.6);
  z-index: 40;
}

.sheet {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 41;
  max-height: 78dvh;
  overflow-y: auto;
  background: var(--card);
  border-top-left-radius: 18px;
  border-top-right-radius: 18px;
  border-top: 1px solid var(--line);
  padding: 14px 14px calc(20px + var(--safe-b));
  animation: sheet-up 0.18s ease;
}

@keyframes sheet-up {
  from {
    transform: translateY(24px);
    opacity: 0.4;
  }
}

.sheet-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.sheet-head strong {
  font-size: 16px;
}

.sheet-body {
  font-size: 14px;
}

.score-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px solid var(--line-soft);
}

.score-row:last-child {
  border-bottom: 0;
}

.score-row .swatch {
  width: 16px;
  height: 16px;
  border-radius: 4px;
  background: var(--c);
  flex: none;
}

.score-row .who {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.score-row .who small {
  display: block;
  color: var(--muted);
  font-size: 11.5px;
}

.score-row .num {
  text-align: right;
  font-variant-numeric: tabular-nums;
  font-size: 13px;
}

.score-row .num b {
  font-size: 16px;
}

.team-head {
  margin: 14px 0 4px;
  font-size: 12.5px;
  color: var(--muted);
}

.team-head.win {
  color: var(--ok);
  font-weight: 600;
}

.log-list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  font-size: 12.5px;
  color: var(--muted);
}

.log-list li {
  padding: 3px 0;
  border-bottom: 1px solid var(--line-soft);
}

/* ---------------------------- 结算 ---------------------------- */

.modal {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: rgba(4, 8, 16, 0.78);
  display: grid;
  place-items: center;
  padding: 16px;
  overflow-y: auto;
}

.modal-card {
  width: 100%;
  max-width: 460px;
  background: linear-gradient(180deg, var(--card) 0%, var(--bg-2) 100%);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px;
  max-height: 90dvh;
  overflow-y: auto;
}

.modal-card h2 {
  margin: 0 0 4px;
  font-size: 21px;
  text-align: center;
}

.modal-card .hint {
  text-align: center;
  margin-top: 0;
}

.result-rows {
  margin: 14px 0;
}

.result-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: var(--r-sm);
  background: #101a2e;
  margin-bottom: 6px;
  border-left: 4px solid var(--c);
}

.result-row.is-winner {
  background: #16294a;
}

.result-row .rank {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #24344f;
  display: grid;
  place-items: center;
  font-size: 12px;
  font-weight: 700;
  flex: none;
}

.result-row.is-winner .rank {
  background: var(--warn);
  color: #3b2a00;
}

.result-row .rname {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 600;
}

.result-row .rname small {
  display: block;
  font-weight: 400;
  color: var(--muted);
  font-size: 11.5px;
}

.result-row .rdelta {
  font-size: 18px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.rdelta.pos {
  color: var(--ok);
}
.rdelta.neg {
  color: var(--danger);
}

.result-bonus {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.bonus-chip {
  font-size: 11.5px;
  padding: 4px 9px;
  border-radius: 999px;
  background: #3b2f0d;
  color: var(--warn);
  border: 1px solid #57430f;
}

.summary {
  white-space: pre-wrap;
  font-family: inherit;
  font-size: 12.5px;
  color: var(--muted);
  background: #0e1729;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-sm);
  padding: 10px;
  margin: 0 0 14px;
}

.modal-row {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

.modal-row .btn {
  flex: 1;
}

/* ---------------------------- Toast ---------------------------- */

.toast-wrap {
  position: fixed;
  left: 50%;
  bottom: calc(24px + var(--safe-b));
  transform: translateX(-50%);
  z-index: 80;
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: center;
  pointer-events: none;
  width: min(92vw, 420px);
}

.toast {
  background: rgba(20, 30, 50, 0.96);
  border: 1px solid var(--line);
  color: var(--text);
  padding: 9px 14px;
  border-radius: 999px;
  font-size: 13px;
  text-align: center;
  animation: toast-in 0.18s ease;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

.toast.err {
  background: #4a1d1d;
  border-color: #7f2a2a;
}
.toast.ok {
  background: #14532d;
  border-color: #1f7a45;
}

@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
}

/* 大屏：棋盘更大一些 */
@media (min-width: 720px) {
  .screen-game.is-active {
    max-width: 860px;
  }
}