* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html,
body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  overscroll-behavior: none;
  background: #2b1a10;
  color: #fff;
  font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  user-select: none;
  -webkit-user-select: none;
  touch-action: none;
}

canvas {
  position: fixed;
  inset: 0;
  display: block;
  touch-action: none;
}

.overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: rgba(20, 10, 4, 0.35);
  z-index: 10;
}

.overlay.hidden,
.hidden {
  display: none !important;
}

.panel {
  width: min(460px, 100%);
  max-height: 100%;
  overflow-y: auto;
  padding: 24px 22px;
  border-radius: 20px;
  background: rgba(30, 18, 10, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  text-align: center;
}

h1 {
  font-size: 32px;
  margin-bottom: 18px;
  letter-spacing: 2px;
}

h1 small {
  display: block;
  font-size: 14px;
  font-weight: normal;
  opacity: 0.7;
  letter-spacing: 4px;
  margin-top: 4px;
}

h2 {
  font-size: 26px;
  margin-bottom: 14px;
}

.row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 10px 0;
}

.row label {
  flex: 0 0 72px;
  text-align: left;
  font-size: 15px;
  opacity: 0.85;
}

.row.disabled {
  opacity: 0.35;
  pointer-events: none;
}

.seg {
  flex: 1;
  display: flex;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 3px;
}

.seg button {
  flex: 1;
  padding: 9px 4px;
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: #fff;
  font-size: 15px;
  cursor: pointer;
  transition: background 0.15s;
}

.seg button.on {
  background: #ff8a3d;
  font-weight: bold;
}

.hint {
  min-height: 20px;
  margin: 12px 0 4px;
  font-size: 13px;
  opacity: 0.75;
  line-height: 1.6;
}

button.primary {
  width: 100%;
  margin-top: 14px;
  padding: 14px;
  border: 0;
  border-radius: 14px;
  background: linear-gradient(180deg, #ffb347, #ff6a2b);
  color: #fff;
  font-size: 19px;
  font-weight: bold;
  letter-spacing: 2px;
  cursor: pointer;
  box-shadow: 0 6px 0 #b8431a;
  transition: transform 0.08s, box-shadow 0.08s;
}

button.primary:active {
  transform: translateY(4px);
  box-shadow: 0 2px 0 #b8431a;
}

button.ghost {
  padding: 8px 12px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 10px;
  background: transparent;
  color: #fff;
  font-size: 14px;
  cursor: pointer;
}

button.ghost.wide {
  width: 100%;
  margin-top: 12px;
  padding: 11px;
  font-size: 16px;
}

.footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 16px;
  font-size: 14px;
}

.footer b {
  color: #ffd23f;
  font-size: 18px;
}

.rules {
  margin-top: 14px;
  font-size: 12px;
  opacity: 0.6;
  line-height: 1.7;
}

#rankList {
  list-style: none;
  text-align: left;
}

#rankList li {
  display: grid;
  grid-template-columns: 40px 1fr auto;
  grid-template-rows: auto auto;
  align-items: center;
  column-gap: 8px;
  padding: 10px 12px;
  margin: 8px 0;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.07);
  border-left: 5px solid var(--c);
}

#rankList .medal {
  grid-row: span 2;
  font-size: 26px;
  text-align: center;
}

#rankList .name {
  font-weight: bold;
  color: var(--c);
  font-size: 17px;
}

#rankList .score {
  grid-row: span 2;
  font-size: 28px;
  font-weight: bold;
}

#rankList .meta {
  font-size: 12px;
  opacity: 0.65;
}

.record {
  min-height: 22px;
  margin-top: 8px;
  color: #ffd23f;
  font-weight: bold;
}

#exitBtn {
  position: fixed;
  top: max(8px, env(safe-area-inset-top));
  left: 50%;
  transform: translateX(-50%);
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.45);
  color: #fff;
  font-size: 18px;
  cursor: pointer;
  z-index: 5;
}