:root {
  --bg: #0b1220;
  --panel: #101a2f;
  --text: #e6edf8;
  --muted: #9cb0cf;
  --accent: #22d3ee;
  --border: #22314f;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at 20% 10%, #1e2a4d 0%, var(--bg) 45%);
  color: var(--text);
}

.app {
  min-height: 100dvh;
  max-width: 720px;
  margin: 0 auto;
  padding: 24px 16px 40px;
}

h1 {
  margin: 0 0 6px;
  font-size: clamp(28px, 7vw, 44px);
}

.status {
  margin: 0 0 16px;
  color: var(--muted);
}

.card {
  background: linear-gradient(180deg, #0f1c37, var(--panel));
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
}

.label {
  color: var(--muted);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.values {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 8px;
}

.value {
  font-size: clamp(40px, 11vw, 64px);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.unit {
  margin-left: 4px;
  color: var(--muted);
}

.meta {
  margin-top: 12px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 12px;
  color: var(--muted);
  font-size: 14px;
}

.actions {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

button {
  border: 1px solid var(--accent);
  background: #0a2240;
  color: #c1f7ff;
  font-size: 16px;
  padding: 10px 14px;
  border-radius: 10px;
}

.small {
  margin-top: 12px;
  color: var(--muted);
  font-size: 12px;
}

.tech-panel {
  margin-top: 12px;
}

.graph-card {
  margin-top: 12px;
}

.graph-controls {
  margin-top: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.graph-range {
  padding: 7px 10px;
  font-size: 13px;
  border-radius: 8px;
}

.graph-range.active {
  background: #124e66;
  color: #d8fbff;
}

#elevation-graph {
  width: 100%;
  height: auto;
  display: block;
  margin-top: 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #0a142a;
}

.hidden {
  display: none;
}

.raw {
  margin: 12px 0 0;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #0a142a;
  color: #c9d8f1;
  font-size: 12px;
  line-height: 1.4;
  overflow-x: auto;
}

@media (max-width: 520px) {
  .meta {
    grid-template-columns: 1fr;
  }
}