:root {
  --bg: #090b0e;
  --bg-2: #10141a;
  --panel: rgba(16, 20, 26, 0.92);
  --line: #2a323c;
  --text: #e8edf3;
  --muted: #8b97a6;
  --accent: #ff9f1c;
  --accent-2: #3de0ff;
  --good: #7cff6b;
  --bad: #ff5c5c;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
  --xh-color: #fff;
  --xh-len: 8px;
  --xh-thick: 2px;
  --xh-gap: 4px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  color: var(--text);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(1000px 500px at 50% -10%, rgba(255, 159, 28, 0.08), transparent 50%),
    radial-gradient(800px 400px at 80% 110%, rgba(61, 224, 255, 0.05), transparent 45%),
    var(--bg);
  overflow: hidden;
}

button, input, select { font: inherit; }
button { cursor: pointer; }
.num { font-variant-numeric: tabular-nums; font-family: "Cascadia Mono", "Consolas", ui-monospace, monospace; }

.screen { display: none; min-height: 100%; }
.screen.is-active { display: block; }

#screen-train.is-active {
  display: block;
  position: fixed;
  inset: 0;
  user-select: none;
}

.wrap {
  width: min(1040px, calc(100% - 40px));
  margin: 0 auto;
  padding: 56px 0 40px;
}

.hero {
  display: grid;
  gap: 10px;
  margin-bottom: 36px;
}
.kicker {
  color: var(--accent);
  letter-spacing: 0.18em;
  font-size: 12px;
  font-weight: 700;
}
h1 {
  margin: 0;
  font-size: clamp(40px, 6vw, 68px);
  letter-spacing: -0.04em;
  line-height: 0.95;
}
h1 span { color: var(--muted); font-weight: 500; }
.lead { margin: 8px 0 0; color: var(--muted); font-size: 16px; }
.url-bar {
  margin-top: 18px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #10141a;
  font-size: 14px;
}
.url-bar span { color: var(--muted); }
.url-bar a { color: var(--accent-2); font-family: Consolas, ui-monospace, monospace; }

.best {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 28px 0 32px;
}
.stat {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px 18px;
}
.stat b {
  display: block;
  margin-top: 6px;
  font-size: 28px;
}
.stat span { color: var(--muted); font-size: 12px; }

.actions { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  border: 0;
  border-radius: 12px;
  padding: 12px 18px;
  background: #1b2129;
  color: var(--text);
  border: 1px solid var(--line);
}
.btn:hover { border-color: #3b4654; }
.btn-primary {
  background: var(--accent);
  color: #1a1206;
  border-color: transparent;
  font-weight: 700;
  min-width: 180px;
}
.btn-ghost { background: transparent; }
.btn-danger { color: var(--bad); }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 24px;
  box-shadow: var(--shadow);
}
.panel h2 { margin: 0 0 18px; font-size: 24px; }
.grid-2 { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 24px; }
.group { margin-bottom: 22px; }
.group h3 {
  margin: 0 0 12px;
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
label.field {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 10px;
  align-items: center;
  margin-bottom: 10px;
  font-size: 14px;
}
label.field.row { grid-template-columns: 1fr auto; }
input[type="text"], input[type="number"], input[type="color"], select {
  width: 100%;
  background: #0c0f13;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
}
input[type="range"] { width: 100%; }
.hint { color: var(--muted); font-size: 12px; margin: 6px 0 0; }
.presets { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }

.preview-box {
  height: 180px;
  border-radius: 14px;
  border: 1px dashed #3a4450;
  background:
    linear-gradient(#14181e, #14181e) padding-box,
    repeating-linear-gradient(90deg, #20262e 0 1px, transparent 1px 24px),
    repeating-linear-gradient(#20262e 0 1px, transparent 1px 24px);
  position: relative;
}
.preview-box .crosshair { position: absolute; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
th, td { padding: 10px 8px; border-bottom: 1px solid var(--line); text-align: left; }
th { color: var(--muted); font-weight: 600; }
.empty { color: var(--muted); text-align: center; padding: 28px !important; }

#flash-veil {
  position: absolute;
  inset: 0;
  background: #fff;
  opacity: 0;
  pointer-events: none;
  z-index: 8;
  transition: none;
}
.stage { position: absolute; inset: 0; background: #0b0d10; }
#game-canvas { width: 100%; height: 100%; display: block; }

.hud {
  position: absolute;
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 18px;
  padding: 10px 16px;
  background: rgba(8, 10, 12, 0.45);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 999px;
  backdrop-filter: blur(8px);
  pointer-events: none;
}
.hud div { min-width: 72px; text-align: center; }
.hud small { display: block; color: var(--muted); font-size: 10px; letter-spacing: 0.08em; }
.hud b { font-size: 18px; }

.help-tip {
  position: absolute;
  left: 18px;
  bottom: 16px;
  color: #9aa6b4;
  font-size: 12px;
  pointer-events: none;
}

.peek-hud {
  position: absolute;
  top: 78px;
  left: 50%;
  transform: translateX(-50%);
  width: min(360px, calc(100% - 32px));
  pointer-events: none;
  text-align: center;
}
.speed-line {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #c5ced8;
  font-size: 12px;
  margin-bottom: 8px;
}
.speed-line b { font-size: 16px; }
.speed-bar {
  flex: 1;
  height: 6px;
  border-radius: 99px;
  background: #1c222a;
  overflow: hidden;
  border: 1px solid #2a323c;
}
.speed-bar i {
  display: block;
  height: 100%;
  width: 0;
  background: #ff5c5c;
}
body.is-accurate .speed-bar i { background: #7cff6b; }
#peek-banner {
  padding: 8px 12px;
  border-radius: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
  background: rgba(255, 92, 92, 0.16);
  color: #ffb4b4;
}
#peek-banner[data-phase="stop"] {
  background: rgba(255, 159, 28, 0.16);
  color: #ffcc7a;
}
#peek-banner[data-phase="open"] {
  background: rgba(124, 255, 107, 0.16);
  color: #9dff90;
}
body.is-moving #crosshair { filter: saturate(0.6); }
body.is-accurate #crosshair { filter: drop-shadow(0 0 4px rgba(124, 255, 107, 0.55)); }

.crosshair {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 0;
  height: 0;
  pointer-events: none;
}
.xh-arm {
  position: absolute;
  background: var(--xh-color);
}
.xh-h {
  width: var(--xh-len);
  height: var(--xh-thick);
  top: calc(var(--xh-thick) / -2);
}
.xh-v {
  width: var(--xh-thick);
  height: var(--xh-len);
  left: calc(var(--xh-thick) / -2);
}
.xh-left { right: var(--xh-gap); }
.xh-right { left: var(--xh-gap); }
.xh-up { bottom: var(--xh-gap); }
.xh-down { top: var(--xh-gap); }
.xh-center {
  position: absolute;
  width: 3px;
  height: 3px;
  left: -1.5px;
  top: -1.5px;
  border-radius: 50%;
  background: var(--xh-color);
}
.crosshair.has-outline .xh-arm,
.crosshair.has-outline .xh-center {
  box-shadow: 0 0 0 1px rgba(0,0,0,0.75);
}
.crosshair.is-dot-only .xh-arm { display: none; }
.crosshair.is-dot-only .xh-center {
  width: 5px;
  height: 5px;
  left: -2.5px;
  top: -2.5px;
}

.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(6, 8, 10, 0.55);
}
.overlay[hidden] { display: none !important; }
.card {
  width: min(460px, calc(100% - 32px));
  background: #12171d;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 24px;
  box-shadow: var(--shadow);
  text-align: center;
}
.card h2, .card h3 { margin: 0 0 8px; }
.card p { color: var(--muted); }
.countdown { font-size: 88px; line-height: 1; font-weight: 700; }
.new-best {
  display: inline-block;
  margin-bottom: 8px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(124, 255, 107, 0.12);
  color: var(--good);
  font-size: 12px;
  font-weight: 700;
}
.result-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 16px;
  margin: 16px 0 20px;
  text-align: left;
}
.result-grid span { color: var(--muted); display: block; font-size: 12px; }
.result-grid b { font-size: 20px; }
.score-xl { font-size: 48px; margin: 4px 0 8px; }

.topbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }

@media (max-width: 800px) {
  .best, .grid-2, .result-grid { grid-template-columns: 1fr; }
  label.field { grid-template-columns: 1fr; gap: 4px; }
  .wrap { padding-top: 28px; }
}