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

:root {
  --bg: #f4f4f5;
  --card-bg: #ededed;
  --text: #333;
  --muted: #666;
  --safe-bg: #e8f2e0;
  --safe-text: #21450f;
  --warn-bg: #faf5e0;
  --warn-text: #854f0a;
  --danger-bg: #fae8e8;
  --danger-text: #a32b2b;
  --accent: #3a8814;
  --accent-stop: #a32b2b;
}

html, body {
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  overscroll-behavior: none;
}

body {
  display: flex;
  align-items: stretch;
  justify-content: center;
  padding: env(safe-area-inset-top, 0) 0 env(safe-area-inset-bottom, 0) 0;
}

#app {
  width: 100%;
  max-width: 480px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.card {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 14px;
  transition: background-color 0.3s;
}

.main-card {
  background: var(--safe-bg);
  border-radius: 20px;
  padding: 24px 16px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 220px;
  justify-content: center;
}

.main-card.warn   { background: var(--warn-bg); }
.main-card.warn   .dist { color: var(--warn-text); }
.main-card.danger { background: var(--danger-bg); }
.main-card.danger .dist { color: var(--danger-text); }

.status {
  font-size: 13px;
  color: var(--muted);
}

.dist {
  font-size: 56px;
  font-weight: 700;
  color: var(--safe-text);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.radar-name {
  font-size: 12px;
  color: var(--muted);
  white-space: pre-line;
  line-height: 1.4;
}

.row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.label { font-size: 13px; color: var(--muted); }
.value { font-size: 13px; font-weight: 700; }
.value.acc-good { color: #2f7a13; }
.value.acc-ok   { color: #9c6a14; }
.value.acc-bad  { color: #a32b2b; }

.slider-card { display: flex; flex-direction: column; gap: 6px; }

input[type=range] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: #d4d4d8;
  border-radius: 3px;
  outline: none;
}
input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: 2px solid white;
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}
input[type=range]::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: 2px solid white;
}

.btn {
  border: none;
  border-radius: 12px;
  padding: 16px;
  font-size: 16px;
  font-weight: 600;
  color: white;
  cursor: pointer;
  transition: background 0.2s;
  touch-action: manipulation;
}
.btn:active { opacity: 0.85; }
.btn-start { background: var(--accent); }
.btn-stop  { background: var(--accent-stop); }

.log {
  font-size: 11px;
  color: var(--muted);
  text-align: center;
  min-height: 16px;
}

@media (max-width: 380px) {
  .dist { font-size: 44px; }
}