:root {
  color-scheme: light dark;
  --bg: #f6f7fb;
  --card: #ffffff;
  --text: #1b1f24;
  --muted: #5b6470;
  --accent: #0b5fff;
  --border: #d8dee9;
  --border-split: #97a3b8;
  --positive: #b42318;
  --negative: #067647;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.page, .page-header, .controls, .table-wrap {
  max-width: 1200px;
  margin: 0 auto;
}

.page, .page-header, .controls {
  padding: 1rem;
}

.table-wrap {
  padding: 0 1rem 1rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.page-header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
}

h1 { margin: 0.25rem 0; font-size: 1.6rem; }
.subtitle, .lead, .legend { color: var(--muted); }
.back-link { color: var(--accent); text-decoration: none; font-size: 0.9rem; }

.import-form, .add-athlete-form, .course-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: end;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
}

.hidden-splits-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.hidden-splits-toggle input {
  margin: 0;
}

input, select, button {
  font: inherit;
  padding: 0.55rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border);
}

#import-form input[type=url], #search { flex: 1 1 240px; min-width: 200px; }
button {
  background: var(--accent);
  color: white;
  border: none;
  cursor: pointer;
}

.error { color: var(--positive); }

.compare-grid {
  width: max-content;
  min-width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background: var(--card);
  border: 2px solid var(--border-split);
  border-radius: 12px;
  overflow: hidden;
}

.compare-grid th, .compare-grid td {
  border-bottom: 1px solid var(--border);
  border-right: 1px solid var(--border);
  padding: 0.55rem 0.65rem;
  vertical-align: middle;
  text-align: right;
  white-space: nowrap;
}

.compare-grid .athlete-col:not(:last-child),
.compare-grid .segment-header th:not(.athlete-col):not(:last-child),
.compare-grid .metric-col-leg:not(:last-child),
.compare-grid .value-cell[data-kind="leg"]:not(:last-child) {
  border-right: 2px solid var(--border-split);
}

.compare-grid th:last-child,
.compare-grid td:last-child {
  border-right: none;
}

.compare-grid tbody tr:last-child th,
.compare-grid tbody tr:last-child td {
  border-bottom: none;
}

.compare-grid thead {
  position: sticky;
  top: 0;
  z-index: 5;
}

.compare-grid thead th {
  background: #eef2ff;
}

.compare-grid thead .segment-header th:not(.athlete-col) {
  padding-top: 0.55rem;
  padding-bottom: 0.35rem;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.compare-grid thead .segment-header th.athlete-col {
  vertical-align: middle;
  text-align: center;
  font-weight: 600;
  color: var(--text);
}

.compare-grid thead .metric-header th {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--muted);
  padding-top: 0.35rem;
  padding-bottom: 0.45rem;
  text-align: center;
}

.compare-grid [data-hidden-by-default="true"] {
  display: none;
}

.compare-grid.show-hidden-splits [data-hidden-by-default="true"] {
  display: table-cell;
}

.compare-grid.show-hidden-splits thead [data-hidden-by-default="true"] {
  color: var(--muted);
  font-style: italic;
}

.compare-grid.show-hidden-splits tbody .value-cell[data-hidden-by-default="true"] .value {
  color: var(--muted);
  font-style: italic;
  font-weight: 500;
}

.athlete-col {
  min-width: 9.5rem;
  width: 9.5rem;
  text-align: left;
  white-space: normal;
  position: sticky;
  left: 0;
  z-index: 3;
  background: var(--card);
}

.athlete-cell {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.2rem;
}

.athlete-primary {
  display: flex;
  align-items: baseline;
  gap: 0.25rem;
  min-width: 0;
  width: 100%;
}

.compare-grid thead .athlete-col {
  z-index: 6;
  background: #eef2ff;
  text-align: center;
  vertical-align: middle;
}

.drag-handle {
  cursor: grab;
  color: var(--muted);
  margin-right: 0.35rem;
  user-select: none;
}

.athlete-name {
  font-weight: 600;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.bib, .baseline-badge {
  font-size: 0.75rem;
  color: var(--muted);
  flex-shrink: 0;
}

.baseline-badge {
  background: #eef2ff;
  border-radius: 999px;
  padding: 0.1rem 0.45rem;
}

.value-cell .value {
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.value-cell[data-kind="leg"] .value {
  font-weight: 500;
  color: var(--text);
}

.value-cell .delta {
  font-size: 0.72rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  margin-top: 0.1rem;
}

.delta[data-sign="positive"] { color: var(--positive); }
.delta[data-sign="negative"] { color: var(--negative); }

.metric-col-leg {
  font-style: italic;
}

.search-results {
  margin-top: 0.5rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.search-results button {
  display: block;
  width: 100%;
  text-align: left;
  background: transparent;
  color: inherit;
  border: none;
  border-bottom: 1px solid var(--border);
}

.search-results button:last-child { border-bottom: none; }

tr.dragging { opacity: 0.5; }

@media (max-width: 720px) {
  .page-header { flex-direction: column; }

  .compare-grid th, .compare-grid td {
    padding: 0.45rem 0.5rem;
    font-size: 0.88rem;
  }

  .compare-grid thead .metric-header th {
    font-size: 0.68rem;
  }

  .athlete-col {
    min-width: 8.5rem;
    width: 8.5rem;
  }
}