/* 合成交大 —— 交大红主题，移动端优先 */

:root {
  --sjtu-red: #a6192e;
  --sjtu-red-dark: #7d1322;
  --sjtu-gold: #d9b26a;
  --paper: #faf6f0;
  --ink: #33272a;
  --muted: #8c7b74;
  --line: #e5d9cd;
  --card: #ffffff;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  overscroll-behavior: none;          /* 防止下拉刷新 / 橡皮筋误触 */
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  background:
    radial-gradient(1200px 500px at 50% -150px, rgba(166, 25, 46, 0.10), transparent 70%),
    var(--paper);
  color: var(--ink);
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
}

.app {
  height: 100dvh;
  display: flex;
  flex-direction: column;
  padding: calc(6px + var(--safe-top)) 8px calc(6px + var(--safe-bottom));
  max-width: 560px;
  margin: 0 auto;
}

/* ---------- 顶栏 ---------- */

.topbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 4px 8px;
  flex-wrap: wrap;
}

.brand h1 {
  font-size: 20px;
  color: var(--sjtu-red);
  letter-spacing: 2px;
}
.brand p {
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 1px;
}

.metrics {
  display: flex;
  gap: 10px;
  margin-left: auto;
}
.metric {
  text-align: center;
  min-width: 44px;
}
.metric span {
  display: block;
  font-size: 10px;
  color: var(--muted);
}
.metric strong {
  font-size: 16px;
  font-variant-numeric: tabular-nums;
}
.metric-score strong { color: var(--sjtu-red); }

.actions {
  display: flex;
  gap: 6px;
  align-items: center;
}

.icon-btn, .chip-btn {
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--ink);
  border-radius: 999px;
  font-size: 13px;
  cursor: pointer;
  transition: transform 0.08s ease, opacity 0.15s ease;
}
.icon-btn { width: 30px; height: 30px; line-height: 1; }
.chip-btn { padding: 5px 10px; }
.chip-btn.warn { color: var(--sjtu-red); border-color: rgba(166, 25, 46, 0.35); }
.icon-btn:active, .chip-btn:active { transform: scale(0.94); }
.icon-btn.is-off { opacity: 0.35; }
.icon-btn:disabled, .chip-btn:disabled { opacity: 0.4; cursor: default; }

/* BGM 弹出面板（开关 + 用户音量滑块） */
.bgm-wrap { position: relative; }
.bgm-pop {
  position: absolute;
  top: 36px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(60, 30, 25, 0.18);
  padding: 10px 14px;
  z-index: 60;
  white-space: nowrap;
}
.bgm-pop[hidden] { display: none; }
.bgm-pop-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  margin: 6px 0;
}
.bgm-pop-row input[type="range"] { width: 110px; accent-color: var(--sjtu-red); }
.bgm-pop-row input[type="checkbox"] { accent-color: var(--sjtu-red); }

/* ---------- 联机状态条 ---------- */

.mp-bar {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 6px 10px;
  margin-bottom: 6px;
}
.mp-bar[hidden] { display: none; }
.mp-bar-top {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.mp-room { font-size: 12px; color: var(--muted); }
.mp-room strong { color: var(--sjtu-red); letter-spacing: 2px; font-size: 14px; }
.mp-turn { font-size: 13px; font-weight: 600; flex: 1; }
.mp-count {
  font-size: 13px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--muted);
  min-width: 34px;
  text-align: center;
}
.mp-count.is-urgent { color: var(--sjtu-red); animation: pulse 0.6s ease infinite alternate; }
.mp-members {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 6px;
}
.mp-chip {
  display: flex;
  align-items: center;
  gap: 5px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 2px 10px 2px 3px;
  font-size: 12px;
  background: var(--paper);
}
.mp-chip img {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  object-fit: cover;
  background: #fff;
}
.mp-chip.is-current {
  border-color: var(--sjtu-red);
  background: rgba(166, 25, 46, 0.08);
  font-weight: 700;
}
.mp-chip.is-offline { opacity: 0.55; }
.mp-chip.is-left { opacity: 0.4; text-decoration: line-through; }

.mp-code { color: var(--sjtu-red); letter-spacing: 4px; }
.mp-lobby-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: center;
  margin: 12px 0;
}
.mp-section { margin: 12px 0; }
.mp-section h3 { font-size: 14px; margin-bottom: 8px; }
.mp-divider {
  color: var(--muted);
  font-size: 12px;
  margin: 8px 0;
  display: flex;
  align-items: center;
  gap: 10px;
}
.mp-divider::before, .mp-divider::after {
  content: "";
  flex: 1;
  border-top: 1px dashed var(--line);
}
.mp-join-row { display: flex; gap: 8px; justify-content: center; }
.mp-join-row input {
  flex: 1;
  min-width: 0;
  max-width: 220px;
  padding: 10px 12px;
  font-size: 16px;
  letter-spacing: 2px;
  text-align: center;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--paper);
}
/* 占位提示不继承数字输入的大字距，避免显示不全 */
.mp-join-row input::placeholder {
  letter-spacing: 0;
  font-size: 14px;
}
.mp-join-hint { margin-top: 8px; font-size: 12px; }

.mp-waiting-text { font-size: 15px; font-weight: 600; margin: 14px 0 4px; }
.mp-waiting-text .dots { animation: pulse 0.8s ease infinite alternate; }
#mpJoinWaiting .ghost-btn { margin-top: 12px; }

.mp-pending-title {
  font-size: 12px;
  color: var(--sjtu-red);
  font-weight: 700;
  margin: 10px 0 6px;
}
.mp-pending-row {
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: center;
  padding: 5px 0;
  font-size: 13px;
}
.mp-pending-row img {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  object-fit: cover;
  background: #fff;
  border: 1px solid var(--line);
}

.mp-solo-warn {
  margin-top: 6px;
  font-size: 12px;
  color: var(--sjtu-red);
  background: rgba(166, 25, 46, 0.07);
  border-radius: 8px;
  padding: 5px 10px;
}
.mp-solo-warn[hidden] { display: none; }

.mp-kick {
  border: 0;
  background: none;
  color: var(--muted);
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  padding: 2px 2px 2px 4px;
}
.mp-kick:hover { color: var(--sjtu-red); }

.mp-steps {
  font-size: 12px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.check-line {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 13px;
  margin: 8px 0;
  color: var(--ink);
}

/* ---------- 账号面板 ---------- */

.account-card { text-align: left; }
.account-card h2 { text-align: center; }
.account-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 10px 0;
}
.acc-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--line);
  background: #fff;
}
.acc-name { font-weight: 700; font-size: 15px; }
.acc-row { display: flex; align-items: center; gap: 8px; margin: 8px 0; flex-wrap: wrap; }
.acc-details {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px 12px;
  margin: 8px 0;
}
.acc-details summary { cursor: pointer; font-size: 13px; font-weight: 600; }
.acc-details label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin: 8px 0 2px;
}
.acc-details input {
  width: 100%;
  margin-top: 3px;
  padding: 8px 10px;
  font-size: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}
.acc-details .primary-btn { margin-top: 10px; padding: 8px 18px; font-size: 13px; }
.acc-listed { justify-content: flex-start; }

/* ---------- 榜单搜索 ---------- */

.rank-search {
  display: flex;
  gap: 8px;
  margin-bottom: 8px;
}
.rank-search input {
  flex: 1;
  padding: 7px 12px;
  font-size: 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper);
}
.rank-row .mp-team { font-size: 12px; }

/* ---------- 棋盘 ---------- */

.board {
  position: relative;
  flex: 1;
  min-height: 0;
  display: flex;
  justify-content: center;
}

#gameCanvas.translucent {
  /* 有整页背景时：半透明棋盘 + 轻微毛玻璃保证球体可读性 */
  -webkit-backdrop-filter: blur(2px);
  backdrop-filter: blur(2px);
}

#gameCanvas {
  /* 尺寸由 render.js 按容器等比计算并写入 style，避免 CSS 约束下的非等比拉伸 */
  display: block;
  margin: 0 auto;
  background:
    linear-gradient(180deg, rgba(166, 25, 46, 0.045) 0%, rgba(217, 178, 106, 0.05) 100%),
    #fffdf9;
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: 0 8px 26px rgba(70, 40, 30, 0.10);
  touch-action: none;                 /* 关键：canvas 上的手势全部交给游戏 */
  cursor: pointer;
}

/* ---------- 覆盖层 / 弹窗 ---------- */

.overlay, .modal {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(40, 22, 20, 0.45);
  -webkit-backdrop-filter: blur(3px);
  backdrop-filter: blur(3px);
  border-radius: 14px;
  z-index: 10;
  padding: 16px;
}
.modal {
  position: fixed;
  border-radius: 0;
  z-index: 50;
}
.overlay[hidden], .modal[hidden] { display: none; }

.card {
  position: relative;
  background: var(--card);
  border-radius: 16px;
  padding: 22px 20px 18px;
  width: min(340px, 92%);
  max-height: 86vh;
  overflow-y: auto;
  text-align: center;
  box-shadow: 0 18px 50px rgba(40, 20, 15, 0.30);
  animation: card-in 0.22s ease;
}
@keyframes card-in {
  from { transform: translateY(14px) scale(0.96); opacity: 0; }
  to { transform: none; opacity: 1; }
}

.card h2 { font-size: 19px; margin-bottom: 10px; }
.eyebrow { font-size: 11px; color: var(--muted); letter-spacing: 3px; margin-bottom: 4px; }
.muted { color: var(--muted); font-size: 13px; }

.result-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin: 14px 0 10px;
}
.result-grid > div {
  background: var(--paper);
  border-radius: 10px;
  padding: 8px 6px;
}
.result-grid span { display: block; font-size: 11px; color: var(--muted); }
.result-grid strong { font-size: 17px; font-variant-numeric: tabular-nums; }

/* 结算面板的最高合成：校徽 + 简称 */
.over-level {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.over-level img {
  width: 34px;
  height: 34px;
  object-fit: contain;
  background: #fff;
  border-radius: 50%;
  border: 1px solid var(--line);
  padding: 2px;
}
.over-level strong { font-size: 14px; }

.rank-line { font-size: 13px; color: var(--sjtu-red); margin: 6px 0; }
.record-line {
  font-size: 14px;
  font-weight: 700;
  color: var(--sjtu-gold);
  margin: 4px 0;
  animation: pulse 0.9s ease infinite alternate;
}
@keyframes pulse { from { transform: scale(1); } to { transform: scale(1.08); } }

.card-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-top: 12px;
}

.primary-btn {
  background: linear-gradient(160deg, var(--sjtu-red), var(--sjtu-red-dark));
  color: #fff;
  border: 0;
  border-radius: 999px;
  padding: 10px 26px;
  font-size: 15px;
  cursor: pointer;
  box-shadow: 0 6px 16px rgba(166, 25, 46, 0.35);
}
.primary-btn:active { transform: scale(0.96); }
.ghost-btn {
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 10px 20px;
  font-size: 14px;
  color: var(--ink);
  cursor: pointer;
}
.link-btn {
  background: none;
  border: 0;
  color: var(--sjtu-red);
  cursor: pointer;
  font-size: 13px;
  text-decoration: underline;
}
.close-btn {
  position: absolute;
  top: 8px;
  right: 12px;
  background: none;
  border: 0;
  font-size: 22px;
  color: var(--muted);
  cursor: pointer;
  line-height: 1;
  padding: 4px;
}

/* ---------- 登顶祝贺 ---------- */

.victory-card {
  border: 2px solid var(--sjtu-gold);
  background:
    radial-gradient(300px 160px at 50% -40px, rgba(217, 178, 106, 0.25), transparent),
    var(--card);
}
.victory-badge {
  width: 84px;
  height: 84px;
  margin: 2px auto 8px;
  display: block;
  animation: badge-pop 0.9s cubic-bezier(0.2, 1.6, 0.4, 1);
  filter: drop-shadow(0 4px 12px rgba(166, 25, 46, 0.4));
}
@keyframes badge-pop {
  0% { transform: scale(0.2) rotate(-16deg); opacity: 0; }
  60% { transform: scale(1.15) rotate(4deg); }
  100% { transform: scale(1); opacity: 1; }
}
.victory-motto {
  color: var(--sjtu-red);
  font-size: 13px;
  letter-spacing: 4px;
  margin-bottom: 4px;
}

/* ---------- 表单 ---------- */

#authForm { text-align: left; }
#authForm label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin: 10px 0 4px;
}
#authForm input {
  width: 100%;
  margin-top: 4px;
  padding: 10px 12px;
  font-size: 15px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--paper);
  color: var(--ink);
}
#authForm input:focus { outline: 2px solid rgba(166, 25, 46, 0.35); }
#authForm .primary-btn { width: 100%; margin-top: 14px; }
.form-error { color: var(--sjtu-red); font-size: 12px; margin-top: 8px; }
.switch-line { margin-top: 10px; font-size: 13px; color: var(--muted); }
.logged-panel p { margin-bottom: 10px; font-size: 14px; }

/* ---------- 排行榜 ---------- */

.rank-card { width: min(380px, 94%); }
.tab-row { display: flex; gap: 8px; justify-content: center; margin-bottom: 10px; }
.tab-btn {
  border: 1px solid var(--line);
  background: var(--paper);
  border-radius: 999px;
  padding: 5px 16px;
  font-size: 13px;
  cursor: pointer;
  color: var(--muted);
}
.tab-btn.is-active {
  background: var(--sjtu-red);
  border-color: var(--sjtu-red);
  color: #fff;
}
.rank-list {
  max-height: 46vh;
  overflow-y: auto;
  text-align: left;
}
.rank-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 6px;
  border-bottom: 1px dashed var(--line);
  font-size: 13px;
}
.rank-row .no {
  width: 26px;
  text-align: center;
  font-weight: 700;
  color: var(--muted);
  flex: none;
}
.rank-row.top1 .no { color: #d4a017; }
.rank-row.top2 .no { color: #9aa2ad; }
.rank-row.top3 .no { color: #b4713d; }
.rank-row .who {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.rank-row .pts { font-weight: 700; font-variant-numeric: tabular-nums; }
.rank-row .flag { color: var(--sjtu-red); font-size: 11px; flex: none; }
.rank-me {
  margin-top: 10px;
  font-size: 13px;
  color: var(--sjtu-red);
  border-top: 1px solid var(--line);
  padding-top: 8px;
}

/* ---------- 窄屏与横屏适配 ---------- */

@media (max-width: 380px) {
  .brand p { display: none; }
  .brand h1 { font-size: 17px; }
  .metric strong { font-size: 14px; }
}

@media (orientation: landscape) and (max-height: 500px) {
  .app {
    max-width: none;
    flex-direction: row;
    gap: 10px;
    /* 刘海机横屏：避开左右安全区 */
    padding-left: calc(8px + env(safe-area-inset-left, 0px));
    padding-right: calc(8px + env(safe-area-inset-right, 0px));
  }
  .topbar {
    flex-direction: column;
    align-items: flex-start;
    width: 190px;
    flex: none;
  }
  .metrics { margin-left: 0; }
}