:root {
  color-scheme: light;
  --bg: #f5f7fb;
  --card: #ffffff;
  --text: #172033;
  --muted: #5f6b82;
  --line: #dbe2ef;
  --accent: #2563eb;
  --accent-soft: #dbeafe;
  --success: #047857;
  --pos: #16a34a;
  --neg: #dc2626;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: Inter, system-ui, sans-serif; background: var(--bg); color: var(--text); }
.app { max-width: 760px; margin: 0 auto; padding: 1rem; display: grid; gap: 0.9rem; }
.app-header h1 { margin: 0; font-size: 1.45rem; }
.app-header p { margin: 0.25rem 0 0; color: var(--muted); font-size: 0.95rem; }

.sync-row { margin-top: 0.45rem; display: flex; align-items: center; gap: 0.55rem; flex-wrap: wrap; }
.sync-status { font-size: 0.82rem; color: var(--muted); }

.tabs { display: grid; grid-template-columns: repeat(4, 1fr); background: var(--card); border: 1px solid var(--line); border-radius: 0.75rem; padding: 0.2rem; gap: 0.15rem; }
.tab-button { border: 0; background: transparent; padding: 0.5rem 0.3rem; border-radius: 0.55rem; font-weight: 600; color: var(--muted); font-size: 0.78rem; }
.tab-button.active { background: var(--accent-soft); color: var(--accent); }
.tab-panel { display: none; }
.tab-panel.active { display: grid; gap: 0.9rem; }
#home { align-content: start; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 0.9rem; padding: 0.85rem; }
.planning { padding-bottom: 0.7rem; }
.card h2 { margin: 0; font-size: 1.07rem; }
.home-section-title {
  text-decoration: underline;
  text-underline-offset: 0.18rem;
  text-decoration-thickness: 2px;
}
.hint { margin: 0.3rem 0 0.6rem; color: var(--muted); font-size: 0.9rem; }
.hint.inline { margin: 0.45rem 0 0; min-height: 1.1rem; }
.chip-grid { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.chip { border: 1px solid var(--line); border-radius: 999px; padding: 0.45rem 0.8rem; background: #fff; font-weight: 600; font-size: 0.9rem; }
.chip.active { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }
.chip:disabled { opacity: 0.5; color: var(--muted); }
.result { margin-top: 0.7rem; border: 1px dashed var(--line); border-radius: 0.65rem; padding: 0.65rem; font-weight: 600; }
label { display: block; margin: 0.75rem 0 0.45rem; font-weight: 600; }
.record textarea { display: block; }
button.primary, button.secondary { border-radius: 0.55rem; border: 1px solid var(--line); font: inherit; }
button.primary { width: 100%; padding: 0.65rem; margin-top: 0.85rem; background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 700; }
button.primary.saved { background: var(--success); border-color: var(--success); }
button.secondary { padding: 0.5rem 0.75rem; background: #fff; }
.group-summary { border: 1px solid var(--line); border-radius: 0.6rem; padding: 0.65rem; margin: 0.6rem 0; color: var(--muted); }
.metric-item { border: 1px solid var(--line); border-radius: 0.65rem; padding: 0.75rem; }
.metric-item + .metric-item { margin-top: 0.6rem; }
.metric-item h3 { margin: 0 0 0.5rem; }
.metric-line { margin: 0.2rem 0; color: var(--muted); }
.metric-breakdown { margin: 0.4rem 0 0; padding-left: 1rem; color: var(--muted); }
.graph-label { margin: 0.6rem 0 0.35rem; font-size: 0.82rem; color: var(--muted); }
.history-graph { height: 56px; border: 1px solid var(--line); border-radius: 0.5rem; display: grid; grid-template-columns: repeat(30, minmax(0, 1fr)); gap: 1px; overflow: hidden; background: #f8fafc; }
.day-col { position: relative; }
.day-bar { width: 100%; position: absolute; left: 0; }
.day-bar.pos { background: var(--pos); bottom: 50%; }
.day-bar.neg { background: var(--neg); top: 50%; }
.day-bar.zero { height: 1px; background: var(--line); top: 50%; }
.history-list { list-style: none; margin: 0; padding: 0; }
.history-controls { margin: 0.5rem 0 0.65rem; }
.history-item { border: 1px solid var(--line); border-radius: 0.65rem; padding: 0.7rem; display: grid; gap: 0.35rem; margin-bottom: 0.55rem; }
.history-top { display: flex; justify-content: space-between; gap: 0.6rem; }
.history-comment { margin: 0; color: var(--muted); font-size: 0.9rem; }
.delete-btn { border: 0; background: transparent; color: #b91c1c; font-weight: 700; justify-self: start; }
.empty { color: var(--muted); margin: 0; }
.show-more { width: 100%; margin-top: 0.2rem; }
.config-section {
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  background: #f9fbff;
  padding: 0.75rem;
}
.config-section + .config-section { margin-top: 0.85rem; }
.config-section h3 { margin: 0 0 0.5rem; font-size: 0.95rem; }
.section-hint { margin-top: -0.1rem; margin-bottom: 0.65rem; font-size: 0.82rem; }
.car-grid { display: grid; gap: 0.55rem; }
.car-row { display: grid; grid-template-columns: 1fr 90px auto; align-items: center; gap: 0.55rem; border: 1px solid var(--line); border-radius: 0.6rem; padding: 0.55rem; }
.car-row input, .inline-controls input, .inline-controls select, .add-row input, #tripDateInput, #rideCommentInput { width: 100%; padding: 0.45rem; border: 1px solid var(--line); border-radius: 0.45rem; font: inherit; }
#rideCommentInput { resize: vertical; }
.trip-grid { display: grid; grid-template-columns: 1fr; }
.inline-controls { display: grid; grid-template-columns: 1fr 96px; gap: 0.5rem; }
.add-row { margin-top: 0.6rem; display: grid; grid-template-columns: 1fr auto; gap: 0.5rem; }