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

:root {
  --bg: #0f1220;
  --panel: #1a1f35;
  --panel2: #232a48;
  --line: #2e375c;
  --text: #e8ecff;
  --muted: #8b94b8;
  --accent: #5b8cff;
  --accent2: #34d399;
}

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  -webkit-user-select: none;
  user-select: none;
}

#app {
  min-height: 100vh;
  display: flex;
  gap: 16px;
  padding: 16px;
  align-items: flex-start;
  justify-content: center;
}

/* ---------- 舞台 ---------- */
#stage { width: 840px; max-width: 100%; }

#topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}
.brand { font-size: 20px; font-weight: 700; }
.hud-item {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 14px;
  margin-left: 8px;
  font-size: 14px;
}

#canvasWrap {
  position: relative;
  width: 100%;
  aspect-ratio: 840 / 600;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: 0 12px 40px rgba(0,0,0,.45);
}
#game {
  display: block;
  width: 100%;
  height: 100%;
  background: #11152a;
  touch-action: none; /* 关键：手机上滑动不触发滚动 */
}

/* ---------- 覆盖层 ---------- */
.overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 13, 28, .82);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}
.overlay.hidden { display: none; }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 32px 36px;
  text-align: center;
  width: min(460px, 90%);
}
.panel.small { width: min(340px, 86%); padding: 26px; }
.panel h1 { font-size: 26px; margin-bottom: 8px; }
.panel h2 { font-size: 22px; margin-bottom: 10px; }
.sub { color: var(--muted); font-size: 14px; margin-bottom: 20px; }

#nameInput {
  width: 100%;
  padding: 12px 14px;
  font-size: 16px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--panel2);
  color: var(--text);
  outline: none;
  margin-bottom: 12px;
}
#nameInput:focus { border-color: var(--accent); }

/* ---------- 速度选择 ---------- */
.speed-row {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}
.speed-row .speed-btn {
  flex: 1;
  width: auto;
  padding: 9px 0;
  font-size: 14px;
  font-weight: 600;
  background: var(--panel2);
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--muted);
}
.speed-row .speed-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

#serverInput {
  width: 100%;
  padding: 12px 14px;
  font-size: 15px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--panel2);
  color: var(--text);
  outline: none;
  margin-bottom: 12px;
  font-family: ui-monospace, 'SF Mono', Menlo, monospace;
}
#serverInput:focus { border-color: var(--accent); }

button {
  width: 100%;
  padding: 12px;
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), #7c5bff);
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: transform .08s, filter .15s;
}
button:hover { filter: brightness(1.1); }
button:active { transform: scale(.97); }

.tips {
  margin-top: 20px;
  text-align: left;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.9;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}
.tips b { color: var(--text); }
.error { color: #ff7b7b; font-size: 13px; margin-top: 10px; min-height: 18px; }
.phone-link { margin-top: 12px; font-size: 12px; color: var(--muted); }
.phone-link a { color: var(--accent); text-decoration: none; }

/* ---------- 断线 toast ---------- */
#toast {
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(220, 70, 70, .95);
  color: #fff;
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 14px;
  z-index: 20;
}
#toast.hidden { display: none; }

/* ---------- 侧栏排行榜 ---------- */
#sidebar {
  width: 230px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px;
}
#sidebar h3 { font-size: 16px; margin-bottom: 12px; }

#rankList {
  list-style: none;
  max-height: 380px;
  overflow-y: auto;
}
#rankList li {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 6px;
  border-radius: 8px;
  font-size: 14px;
}
#rankList li.me { background: var(--panel2); }
#rankList .rk { width: 22px; color: var(--muted); font-weight: 700; text-align: center; }
#rankList li.top1 .rk { color: #ffd34d; }
#rankList li.top2 .rk { color: #cfd8e3; }
#rankList li.top3 .rk { color: #e0915b; }
.dot { width: 11px; height: 11px; border-radius: 3px; flex: none; }
.dot.dead { opacity: .25; }
#rankList .nm {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
#rankList .nm.dead { color: var(--muted); text-decoration: line-through; }
#rankList .sc { font-weight: 700; color: var(--accent2); }

.rules {
  margin-top: 18px;
  border-top: 1px solid var(--line);
  padding-top: 14px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
}
.muted { margin-top: 10px; font-size: 12px; word-break: break-all; }

/* ---------- 手机：侧栏挪到下面 ---------- */
@media (max-width: 1120px) {
  #app { flex-direction: column; align-items: center; }
  #sidebar { width: 840px; max-width: 100%; }
  #rankList { max-height: 180px; display: flex; flex-wrap: wrap; gap: 4px; }
  #rankList li { width: auto; }
}