:root {
  --sky-deep: #7dd3fc;
  --mint: #6bcb77;
  --sun: #ffd93d;
  --text: #1e293b;
  --glass: rgba(255, 255, 255, 0.82);
  --glass-border: rgba(255, 255, 255, 0.55);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  font-family: "ZCOOL KuaiLe", "Segoe UI", system-ui, sans-serif;
  color: var(--text);
  /* 柔和 mesh / 极光感：近白底 + 左上暖桃、右上天蓝、下方淡粉，中心最亮 */
  background-color: #f9f9fb;
  background-image:
    radial-gradient(ellipse 90% 70% at 6% 8%, rgba(255, 242, 224, 0.78) 0%, transparent 52%),
    radial-gradient(ellipse 85% 75% at 96% 4%, rgba(230, 244, 255, 0.75) 0%, transparent 50%),
    radial-gradient(ellipse 95% 55% at 50% 102%, rgba(255, 236, 242, 0.65) 0%, transparent 55%),
    radial-gradient(ellipse 60% 45% at 50% 38%, rgba(255, 255, 255, 0.5) 0%, transparent 65%);
  background-attachment: fixed;
  background-size: 100% 100%;
  min-height: 100dvh;
}

.view-root {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  height: 100dvh;
}

#c {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
  outline: none;
}

.ui-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;
  padding: max(12px, env(safe-area-inset-bottom));
  padding-bottom: max(20px, env(safe-area-inset-bottom));
}

.ui-bar {
  pointer-events: none;
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: center;
  /* 与 flex-end 不同：子项在交叉轴拉满同一行最高项，两块面板等高 */
  align-items: stretch;
  gap: 12px;
  width: 100%;
  max-width: 900px;
  padding: 0 16px;
}

.ui-bar > * {
  pointer-events: auto;
}

.hud {
  display: flex;
  flex-direction: column;
  width: min(420px, calc(100vw - 32px));
  padding: 14px 16px 16px;
  border-radius: 16px;
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  box-shadow: 0 8px 32px rgba(15, 23, 42, 0.12);
}

.hud-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 10px;
}

.hud-title {
  font-size: 1rem;
  letter-spacing: 0.04em;
  color: #334155;
}

.hud-pct {
  font-size: 0.95rem;
  font-variant-numeric: tabular-nums;
  color: #0d9488;
  font-weight: 600;
}

.progress-merged {
  margin-bottom: 12px;
  padding: 2px 0;
}

.progress-merged .scrub {
  display: block;
  width: 100%;
  height: 30px;
  margin: 0;
  padding: 0;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
}

.progress-merged .scrub::-webkit-slider-runnable-track {
  height: 14px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.6);
  background: linear-gradient(
    to right,
    var(--mint) 0%,
    var(--sky-deep) var(--fill, 0%),
    #e2e8f0 var(--fill, 0%),
    #e2e8f0 100%
  );
  transition: background 0.04s linear;
}

.progress-merged .scrub:active::-webkit-slider-runnable-track {
  transition: none;
}

.progress-merged .scrub::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  margin-top: -6px;
  border-radius: 50%;
  background: linear-gradient(180deg, var(--sun) 0%, #f59e0b 100%);
  border: 2px solid #fff;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
  cursor: grab;
}

.progress-merged .scrub:active::-webkit-slider-thumb {
  cursor: grabbing;
}

.progress-merged .scrub::-moz-range-track {
  height: 14px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.6);
  background: linear-gradient(
    to right,
    var(--mint) 0%,
    var(--sky-deep) var(--fill, 0%),
    #e2e8f0 var(--fill, 0%),
    #e2e8f0 100%
  );
}

.progress-merged .scrub::-moz-range-thumb {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: linear-gradient(180deg, var(--sun) 0%, #f59e0b 100%);
  border: 2px solid #fff;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
  cursor: grab;
}

.btn-row {
  display: flex;
  gap: 10px;
  justify-content: center;
}

.btn {
  font-family: inherit;
  font-size: 0.95rem;
  padding: 8px 20px;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  transition: opacity 0.15s ease, transform 0.08s ease;
}

.btn:active {
  transform: scale(0.98);
}

.btn.primary {
  background: linear-gradient(180deg, #fbbf24 0%, #f59e0b 100%);
  color: #422006;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(245, 158, 11, 0.35);
}

.btn.primary:hover {
  opacity: 0.95;
}

.btn.ghost {
  background: rgba(255, 255, 255, 0.65);
  color: #475569;
  border: 1px solid rgba(148, 163, 184, 0.5);
}

.btn.ghost:hover {
  background: rgba(255, 255, 255, 0.9);
}

.hud-dims {
  width: min(320px, calc(100vw - 32px));
}

.hud-dims-title {
  font-size: 0.95rem;
  letter-spacing: 0.06em;
  color: #0d9488;
  font-weight: 600;
  margin-bottom: 10px;
}

.dim-row {
  display: grid;
  grid-template-columns: 44px 1fr minmax(68px, 76px);
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}

.dim-row:last-of-type {
  margin-bottom: 0;
}

.dim-label {
  font-size: 0.88rem;
  color: #334155;
  margin: 0;
}

.dim-num {
  width: 100%;
  min-width: 0;
  font-family: inherit;
  font-size: 0.88rem;
  padding: 6px 8px;
  border-radius: 10px;
  border: 1px solid rgba(148, 163, 184, 0.55);
  background: rgba(255, 255, 255, 0.85);
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.dim-num:focus {
  outline: 2px solid rgba(13, 148, 136, 0.35);
  outline-offset: 1px;
}

.dim-range {
  width: 100%;
  height: 28px;
  margin: 0;
  padding: 0;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
}

.dim-range::-webkit-slider-runnable-track {
  height: 12px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.55);
  background: linear-gradient(
    to right,
    var(--mint) 0%,
    var(--sky-deep) var(--dim-fill, 0%),
    #e2e8f0 var(--dim-fill, 0%),
    #e2e8f0 100%
  );
}

.dim-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  margin-top: -5px;
  border-radius: 50%;
  background: linear-gradient(180deg, var(--sun) 0%, #f59e0b 100%);
  border: 2px solid #fff;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
}

.dim-range::-moz-range-track {
  height: 12px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.55);
  background: #e2e8f0;
}

.dim-range::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: linear-gradient(180deg, var(--sun) 0%, #f59e0b 100%);
  border: 2px solid #fff;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
}