:root {
  --bg: #0f1419;
  --panel: #1b2330;
  --panel-2: #232d3d;
  --line: #313d4f;
  --text: #e6edf3;
  --muted: #8b98a9;
  --accent: #4f9dff;
  --danger: #ff6b6b;
  --board-bg: #11161f;
  --cell: #2b3647;
  --cell-empty: #222c3b;
  --radius: 10px;

  /* 7 种球色 + 索引 0 占位 */
  --c1: #ff5d5d;
  --c2: #ffb13d;
  --c3: #ffe14d;
  --c4: #5ddf7a;
  --c5: #4fb0ff;
  --c6: #9d7bff;
  --c7: #ff7bd0;
}

* {
  box-sizing: border-box;
}
html,
body {
  margin: 0;
  height: 100%;
}
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC',
    'Microsoft YaHei', sans-serif;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
.mono {
  font-family: ui-monospace, 'SFMono-Regular', Menlo, Consolas, monospace;
}
.muted {
  color: var(--muted);
  font-weight: 400;
  font-size: 12px;
}

/* ---- 顶栏 ---- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  border-bottom: 1px solid var(--line);
}
.logo {
  font-size: 20px;
  margin: 0;
  letter-spacing: 0.5px;
}
.logo span {
  color: var(--muted);
  font-weight: 400;
  font-size: 13px;
  margin-left: 6px;
}
.dedication {
  color: var(--c7);
  font-size: 13px;
  margin-top: 4px;
}
.tabs {
  display: flex;
  gap: 6px;
}
.tab {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--muted);
  padding: 8px 18px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
}
.tab.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* ---- 视图切换 ---- */
.view {
  display: none;
  flex: 1;
  padding: 24px;
}
.view.active {
  display: flex;
}
#view-play {
  gap: 24px;
  align-items: flex-start;
  justify-content: center;
}

/* ---- 棋盘 ---- */
.board-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  width: 100%;
  max-width: 520px;
}
.board {
  display: grid;
  gap: 4px;
  background: var(--board-bg);
  padding: 12px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  width: 100%;
  max-width: 520px;
}
.cell {
  aspect-ratio: 1 / 1;
  background: var(--cell-empty);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.12s;
}
.cell:hover {
  background: var(--cell);
}
.cell.path {
  background: rgba(79, 157, 255, 0.18);
}
.cell.highlight {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}
.cell.cleared {
  background: rgba(255, 107, 107, 0.2);
}
.ball {
  width: 74%;
  height: 74%;
  border-radius: 50%;
  background: radial-gradient(circle at 32% 28%, #ffffff88, transparent 45%),
    var(--ballcolor);
  box-shadow: inset 0 -3px 6px rgba(0, 0, 0, 0.35);
}
.cell.selected .ball {
  animation: bounce 0.5s infinite alternate ease-in-out;
}
@keyframes bounce {
  from {
    transform: translateY(0) scale(1);
  }
  to {
    transform: translateY(-6px) scale(1.04);
  }
}
.ball.small {
  width: 30px;
  height: 30px;
}

.c1 {
  --ballcolor: var(--c1);
}
.c2 {
  --ballcolor: var(--c2);
}
.c3 {
  --ballcolor: var(--c3);
}
.c4 {
  --ballcolor: var(--c4);
}
.c5 {
  --ballcolor: var(--c5);
}
.c6 {
  --ballcolor: var(--c6);
}
.c7 {
  --ballcolor: var(--c7);
}

.status {
  min-height: 22px;
  color: var(--muted);
  font-size: 14px;
}
.status.win {
  color: var(--c4);
}
.status.over {
  color: var(--danger);
}

/* ---- 侧栏 ---- */
.sidebar {
  width: 260px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
}
.panel-title {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.score-panel {
  text-align: center;
}
.score-label {
  color: var(--muted);
  font-size: 13px;
}
.score-value {
  font-size: 44px;
  font-weight: 700;
  line-height: 1.1;
}
.next-preview {
  display: flex;
  gap: 10px;
  justify-content: center;
}
.field {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 10px;
}
.field select {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 5px 8px;
}
.kv {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 8px;
}
.kv b {
  color: var(--text);
}

.btn {
  width: 100%;
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 9px 12px;
  cursor: pointer;
  font-size: 13px;
  margin-top: 6px;
}
.btn:hover {
  border-color: var(--accent);
}
.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.btn-danger:hover {
  border-color: var(--danger);
  color: var(--danger);
}

/* ---- 复盘 ---- */
.review-layout {
  display: grid;
  grid-template-columns: 260px 1fr 280px;
  gap: 20px;
  width: 100%;
}
.sessions-panel,
.log-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  max-height: 78vh;
  display: flex;
  flex-direction: column;
}
.session-list {
  overflow-y: auto;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.session-item {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  cursor: pointer;
  font-size: 13px;
}
.session-item:hover {
  border-color: var(--accent);
}
.session-item.active {
  border-color: var(--accent);
  background: rgba(79, 157, 255, 0.12);
}
.session-item .si-top {
  display: flex;
  justify-content: space-between;
  margin-bottom: 4px;
}
.session-item .si-score {
  color: var(--accent);
  font-weight: 700;
}
.session-item .si-meta {
  color: var(--muted);
  font-size: 11px;
}
.session-item .si-del {
  color: var(--muted);
  float: right;
  cursor: pointer;
}
.session-item .si-del:hover {
  color: var(--danger);
}
.review-actions {
  margin-top: 12px;
}
.replay-main {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.replay-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}
.replay-controls .btn {
  width: auto;
  margin-top: 0;
}
.slider {
  width: 200px;
}
.event-log {
  overflow-y: auto;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 12px;
}
.log-row {
  padding: 6px 8px;
  border-radius: 6px;
  cursor: pointer;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
}
.log-row:hover {
  background: var(--panel-2);
}
.log-row.active {
  background: rgba(79, 157, 255, 0.15);
  color: var(--text);
}
.log-row .lr-t {
  font-family: ui-monospace, monospace;
  font-size: 11px;
  color: var(--muted);
}
.empty-hint {
  color: var(--muted);
  font-size: 13px;
  text-align: center;
  padding: 30px 10px;
}

/* ---- 最高分 / 控制 ---- */
.best-row {
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
}
.best-row b {
  color: var(--c3);
  font-size: 16px;
}
.controls-row {
  display: flex;
  gap: 8px;
}
.controls-row .btn {
  margin-top: 0;
}
.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.ball {
  width: 78%;
  height: 78%;
}

/* ---- 结算弹层 ---- */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(8, 11, 16, 0.78);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
  backdrop-filter: blur(3px);
}
.overlay.hidden {
  display: none;
}
.overlay-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 32px 40px;
  text-align: center;
  min-width: 320px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}
.overlay-title {
  font-size: 18px;
  color: var(--muted);
}
.overlay-score {
  font-size: 64px;
  font-weight: 800;
  margin: 6px 0;
  color: var(--accent);
}
.overlay-badge {
  display: inline-block;
  background: var(--c3);
  color: #2b2300;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 20px;
  margin-bottom: 14px;
}
.overlay-badge.hidden {
  display: none;
}
.overlay-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 18px 0;
}
.overlay-stats > div {
  background: var(--panel-2);
  border-radius: 10px;
  padding: 12px;
}
.overlay-stats b {
  display: block;
  font-size: 22px;
}
.overlay-stats span {
  color: var(--muted);
  font-size: 12px;
}
.overlay-msg {
  color: var(--c7);
  margin-bottom: 20px;
  font-size: 15px;
}
.btn-big {
  font-size: 16px;
  padding: 14px;
}

/* ---- 防沉迷锁定遮罩 ---- */
.lock-overlay {
  z-index: 100;
  background: rgba(8, 11, 16, 0.92);
}
.lock-emoji {
  font-size: 48px;
  margin-bottom: 8px;
}
.lock-text {
  font-size: 16px;
  line-height: 1.7;
  margin: 14px 0;
}
.lock-countdown {
  color: var(--muted);
  font-size: 14px;
}

/* ---- 复盘看板 ---- */
.agg-stats {
  margin-bottom: 16px;
}
.agg-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  text-align: center;
}
.agg-row > div {
  background: var(--panel-2);
  border-radius: 8px;
  padding: 10px 4px;
}
.agg-row b {
  display: block;
  font-size: 20px;
  color: var(--accent);
}
.agg-row span {
  color: var(--muted);
  font-size: 11px;
}
.agg-spark {
  margin-top: 10px;
  text-align: center;
}
.agg-spark .muted {
  margin-top: 2px;
}
.spark {
  display: block;
  margin: 0 auto;
}
.session-stats {
  margin-bottom: 14px;
}
.ss-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
  text-align: center;
}
.ss-grid > div {
  background: var(--panel-2);
  border-radius: 8px;
  padding: 8px 4px;
}
.ss-grid b {
  display: block;
  font-size: 16px;
}
.ss-grid span {
  color: var(--muted);
  font-size: 11px;
}

/* ============ 手机 / 窄屏适配 ============ */
@media (max-width: 680px) {
  .view {
    padding: 12px;
  }

  /* 游戏页：棋盘在上，侧栏在下 */
  #view-play {
    flex-direction: column;
    align-items: stretch;
  }
  .board-wrap {
    max-width: none;
  }
  .board {
    max-width: none;
    padding: 8px;
    gap: 3px;
  }
  .sidebar {
    width: 100%;
  }

  /* 顶栏紧凑 */
  .topbar {
    padding: 10px 14px;
  }
  .logo {
    font-size: 18px;
  }

  /* 复盘：三栏改为竖向堆叠，棋盘排在最前 */
  .review-layout {
    grid-template-columns: 1fr;
  }
  .sessions-panel,
  .log-panel {
    max-height: none;
  }
  .replay-main {
    order: -1;
  }
  .session-list {
    max-height: 40vh;
  }
  .event-log {
    max-height: 40vh;
  }
  .replay-controls .slider {
    width: 100%;
  }

  /* 弹层限宽，避免溢出 */
  .overlay-card {
    min-width: 0;
    width: 90vw;
    max-width: 360px;
    padding: 24px 20px;
  }
  .overlay-score {
    font-size: 52px;
  }
}

/* 更小的屏幕（如 iPhone SE）再收一点 */
@media (max-width: 380px) {
  .ss-grid {
    grid-template-columns: 1fr 1fr;
  }
  .replay-controls .btn {
    padding: 8px 10px;
    font-size: 12px;
  }
}