:root {
  color-scheme: dark;
  --bg: #0a0d12;
  --ink: #e8edf4;
  --dim: #8d97a6;
  --line: rgba(255, 255, 255, 0.12);
  --panel: rgba(12, 16, 22, 0.82);
  --accent: #ffd24a;
  --good: #3fbf6a;
  --warn: #ff5f52;
  --font: ui-sans-serif, system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  overscroll-behavior: none;
  touch-action: none;
}

#stage { position: relative; width: 100%; height: 100%; }

#scene {
  position: absolute;
  inset: 0;
  display: block;
  background: #0a0d12;
}

#panel {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  display: block;
  background: linear-gradient(180deg, rgba(10, 13, 18, 0.55), rgba(10, 13, 18, 0.95) 22%);
  border-top: 1px solid var(--line);
}

#overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hud {
  position: absolute;
  top: 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-variant-numeric: tabular-nums;
}

.hud-left { left: 14px; }
.hud-right { right: 14px; align-items: flex-end; }

.readout {
  display: grid;
  grid-template-columns: 3.4em auto 2.4em;
  align-items: baseline;
  gap: 6px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 3px 8px;
  font-size: 13px;
  backdrop-filter: blur(6px);
}

.readout .k { color: var(--dim); font-size: 10px; letter-spacing: 0.08em; }
.readout b { font-family: var(--mono); font-size: 15px; text-align: right; }
.readout .u { color: var(--dim); font-size: 10px; }

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
  margin-bottom: 8px;
  min-width: 168px;
  backdrop-filter: blur(6px);
}

.card .readout { background: none; border: none; padding: 1px 0; }
.card-title {
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--dim);
  margin-bottom: 4px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.pill {
  border-radius: 999px;
  padding: 1px 7px;
  font-size: 9px;
  letter-spacing: 0.06em;
  background: rgba(255, 95, 82, 0.18);
  color: var(--warn);
}
.pill.on { background: rgba(63, 191, 106, 0.18); color: var(--good); }

#map {
  border-radius: 50%;
  border: 1px solid var(--line);
  background: rgba(8, 11, 16, 0.85);
  display: block;
}
#map.hidden { display: none; }

#warnings {
  position: absolute;
  left: 50%;
  top: 16px;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}

.warn-chip {
  background: rgba(255, 95, 82, 0.9);
  color: #16070a;
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.1em;
  padding: 4px 12px;
  border-radius: 4px;
  animation: pulse 0.9s ease-in-out infinite;
}
.warn-chip.amber { background: rgba(232, 197, 60, 0.92); }
.warn-chip.calm { background: rgba(90, 170, 232, 0.9); animation: none; }

@keyframes pulse { 50% { opacity: 0.45; } }
@media (prefers-reduced-motion: reduce) {
  .warn-chip { animation: none; }
}

#toast {
  position: absolute;
  left: 50%;
  bottom: 28%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: center;
}

.toast-item {
  background: rgba(12, 16, 22, 0.9);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 6px 14px;
  font-size: 13px;
  transition: opacity 0.4s ease;
}

#buttons {
  position: absolute;
  right: 14px;
  bottom: calc(24vh + 14px);
  display: flex;
  gap: 6px;
}

#buttons button {
  pointer-events: auto;
  background: var(--panel);
  border: 1px solid var(--line);
  color: var(--ink);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 11px;
  letter-spacing: 0.08em;
  font-family: var(--font);
  cursor: pointer;
  backdrop-filter: blur(6px);
}
#buttons button:hover { border-color: rgba(255, 255, 255, 0.35); }
#buttons button[aria-pressed="true"] { color: var(--accent); border-color: var(--accent); }

.modal {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(5, 7, 10, 0.82);
  backdrop-filter: blur(10px);
  z-index: 20;
  padding: 16px;
}
.modal.hidden { display: none; }

.modal-card {
  width: min(720px, 100%);
  max-height: 92vh;
  overflow: auto;
  background: #10141b;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 24px;
}

.modal-card h1 { margin: 0 0 8px; font-size: 30px; letter-spacing: -0.02em; }
.modal-card h2 { margin: 0 0 12px; font-size: 22px; }
.lede { color: var(--dim); margin: 0 0 18px; line-height: 1.5; font-size: 14px; }

.scenarios { display: grid; gap: 8px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.scenarios button {
  text-align: left;
  background: #161b24;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--ink);
  cursor: pointer;
  font-family: var(--font);
  display: grid;
  gap: 4px;
}
.scenarios button:hover { border-color: var(--accent); }
.scenarios strong { font-size: 14px; }
.scenarios span { font-size: 12px; color: var(--dim); line-height: 1.4; }

.settings {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 10px 18px;
  margin: 20px 0 6px;
}
.settings label {
  display: grid;
  grid-template-columns: 5.6em 1fr 3.6em;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--dim);
}
.settings output { font-family: var(--mono); color: var(--ink); text-align: right; font-size: 12px; }
.settings input[type="range"] { width: 100%; accent-color: var(--accent); }

.hint { color: var(--dim); font-size: 12px; margin: 14px 0 0; }
kbd {
  font-family: var(--mono);
  font-size: 11px;
  background: #1c222c;
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: 4px;
  padding: 1px 5px;
}

#help-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; }
#help-grid section h3 { margin: 0 0 8px; font-size: 12px; letter-spacing: 0.1em; color: var(--dim); }
#help-grid dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 5px 12px; align-items: baseline; }
#help-grid dt { font-family: var(--mono); font-size: 11px; color: var(--accent); white-space: nowrap; }
#help-grid dd { margin: 0; font-size: 12px; color: var(--ink); }

#crash-stats { display: grid; grid-template-columns: auto 1fr; gap: 4px 14px; font-size: 13px; margin: 14px 0 20px; }
#crash-stats dt { color: var(--dim); }
#crash-stats dd { margin: 0; font-family: var(--mono); }

.modal-card > button {
  margin-top: 18px;
  background: var(--accent);
  color: #10141b;
  border: none;
  border-radius: 8px;
  padding: 10px 18px;
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
  font-family: var(--font);
}

@media (max-width: 720px) {
  .hud-left { top: 10px; left: 10px; }
  .hud-right { top: 10px; right: 10px; }
  .readout { font-size: 11px; grid-template-columns: 3em auto 2em; padding: 2px 6px; }
  .readout b { font-size: 13px; }
  #wx-panel { display: none; }
  #buttons { right: 10px; }
}