*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0f1117;
  --bg2: #161b27;
  --bg3: #1e2535;
  --border: #2a3349;
  --accent: #3b82f6;
  --accent2: #60a5fa;
  --compare: #f97316;
  --compare2: #fb923c;
  --green: #22c55e;
  --yellow: #eab308;
  --red: #ef4444;
  --text: #e2e8f0;
  --text2: #94a3b8;
  --text3: #64748b;
  --radius: 10px;
}

body { font-family: 'Inter', system-ui, sans-serif; background: var(--bg); color: var(--text); min-height: 100vh; }

/* ── Topbar ── */
.topbar {
  position: fixed; top: 0; left: 0; right: 0; height: 48px;
  background: var(--bg2); border-bottom: 1px solid var(--border); z-index: 100;
}
.topbar-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 100%; padding: 0 24px;
}
.brand-name { font-weight: 700; font-size: 16px; }
.topbar-meta { font-size: 12px; color: var(--text3); }

/* ── Control bar ── */
.ctrl-bar {
  display: flex;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 16px;
  padding: 12px 24px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  margin-top: 48px; /* topbar height */
}
.ctrl-slot {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 180px;
}
.ctrl-label {
  font-size: 10px; font-weight: 600; text-transform: uppercase;
  letter-spacing: .06em; color: var(--text3);
}
.ctrl-select { width: 200px; font-size: 13px; padding: 7px 10px; }
.ctrl-athlete-info {
  display: flex; flex-direction: column; gap: 2px;
  padding-left: 4px; border-left: 2px solid var(--accent);
  align-self: flex-end; padding-bottom: 2px;
}
.ctrl-info-name { font-size: 14px; font-weight: 700; }
.ctrl-info-name.compare { color: var(--compare2); }
.ctrl-info-meta { font-size: 11px; color: var(--text3); }
.ctrl-stats {
  display: flex; gap: 12px; margin-top: 2px;
}
.ctrl-stat { font-size: 12px; color: var(--text2); }
.ctrl-stat strong { color: var(--accent2); font-size: 14px; font-weight: 700; }

.ctrl-compare {
  display: flex; align-items: flex-end; gap: 12px; flex-wrap: wrap;
}
.ctrl-vs {
  font-size: 11px; font-weight: 700; color: var(--text3);
  text-transform: uppercase; letter-spacing: .08em;
  align-self: flex-end; padding-bottom: 9px;
}
.ctrl-compare-info {
  display: flex; flex-direction: column; gap: 2px;
  padding-left: 4px; border-left: 2px solid var(--compare);
  align-self: flex-end; padding-bottom: 2px;
}

/* ── Select inputs ── */
.select-input {
  width: 100%; background: var(--bg3); border: 1px solid var(--border);
  color: var(--text); border-radius: 6px; padding: 8px 10px;
  font-size: 13px; outline: none; cursor: pointer; font-family: inherit;
  -webkit-appearance: none; appearance: none;
}
.select-input:focus { border-color: var(--accent); }
.select-sm { width: auto; min-width: 110px; font-size: 12px; padding: 5px 8px; }

/* ── Main ── */
.main { padding: 24px; min-width: 0; }

/* Empty state */
.empty-state {
  display: flex; flex-direction: column; align-items: center;
  justify-content: center; height: 50vh; gap: 12px; color: var(--text3);
}
.empty-title { font-size: 18px; font-weight: 600; color: var(--text2); }
.empty-sub { font-size: 14px; max-width: 320px; text-align: center; line-height: 1.5; }

/* ── Sections ── */
.section { margin-bottom: 28px; }
.section-title { font-size: 15px; font-weight: 600; margin-bottom: 14px; }

/* ── Filter bar ── */
.filter-bar { display: none; margin-bottom: 24px; }
.filter-bar.visible {
  display: flex; flex-wrap: nowrap; gap: 10px; align-items: flex-end;
  padding: 12px 16px; background: var(--bg2);
  border: 1px solid var(--border); border-radius: var(--radius);
}
.filter-bar .filter-item { display: flex; flex-direction: column; gap: 4px; flex: 1; min-width: 0; }
.filter-bar .select-input { font-size: 13px; padding: 7px 8px; }

/* View toggles */
.view-toggle { display: flex; border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
.view-btn {
  background: var(--bg3); border: none; color: var(--text3);
  padding: 5px 12px; font-size: 12px; cursor: pointer; font-family: inherit; font-weight: 500;
}
.view-btn + .view-btn { border-left: 1px solid var(--border); }
.view-btn.active { background: var(--accent); color: #fff; }
.view-btn:not(.active):hover { color: var(--text); }

.chart-section { display: none; }
.chart-section.visible { display: block; }

/* ── Chart ── */
.chart-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; flex-wrap: wrap; gap: 8px; }
.chart-header .section-title { margin-bottom: 0; }
.chart-controls { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.chart-wrap {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px; height: 320px; position: relative;
}
.chart-wrap canvas { width: 100% !important; height: 100% !important; }
.chart-legend { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 10px; }
.legend-item { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--text2); }
.legend-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }

/* ── Personal Bests ── */
.pb-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px;
}
.pb-compare { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.pb-col-label {
  font-size: 11px; font-weight: 700; text-transform: uppercase;
  letter-spacing: .06em; margin-bottom: 10px; padding-bottom: 6px;
  border-bottom: 2px solid var(--accent); color: var(--text2);
}
.pb-col-label.compare { border-bottom-color: var(--compare); color: var(--compare2); }
.pb-card {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px;
  position: relative; overflow: hidden; margin-bottom: 10px;
}
.pb-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--accent); }
.pb-card.compare::before { background: var(--compare); }
.pb-discipline { font-size: 12px; color: var(--text3); text-transform: uppercase; letter-spacing: .05em; margin-bottom: 3px; }
.pb-distance { font-size: 15px; font-weight: 600; color: var(--text2); margin-bottom: 8px; }
.pb-time { font-size: 24px; font-weight: 700; color: var(--accent2); font-variant-numeric: tabular-nums; line-height: 1; }
.pb-card.compare .pb-time { color: var(--compare2); }
.pb-event { font-size: 12px; color: var(--text3); margin-top: 8px; line-height: 1.4; }
.pb-rank { font-size: 12px; color: var(--text3); margin-top: 2px; }

/* ── Table ── */
.table-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.table-header-right { display: flex; align-items: center; gap: 10px; }
.table-count { font-size: 13px; color: var(--text3); }
.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--border); -webkit-overflow-scrolling: touch; }
.results-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.results-table th {
  background: var(--bg3); padding: 10px 12px; text-align: left;
  font-size: 11px; font-weight: 600; text-transform: uppercase;
  letter-spacing: .05em; color: var(--text3); cursor: pointer;
  user-select: none; white-space: nowrap; border-bottom: 1px solid var(--border);
}
.results-table th:hover { color: var(--text); }
.results-table th.sorted { color: var(--accent2); }
.sort-arrow { opacity: .4; }
.results-table td {
  padding: 9px 12px; border-bottom: 1px solid var(--border);
  vertical-align: middle; white-space: nowrap;
}
.results-table tbody tr:last-child td { border-bottom: none; }
.results-table tbody tr:hover { background: var(--bg3); }
.cell-athlete-primary { color: var(--accent2); font-weight: 600; font-size: 11px; }
.cell-athlete-compare { color: var(--compare2); font-weight: 600; font-size: 11px; }
.cell-time { font-variant-numeric: tabular-nums; font-weight: 600; color: var(--accent2); }
.cell-event { max-width: 200px; overflow: hidden; text-overflow: ellipsis; color: var(--text2); }
.cell-heat { font-size: 11px; font-weight: 600; padding: 2px 7px; border-radius: 4px; display: inline-block; }
.heat-f  { background: rgba(34,197,94,.15); color: var(--green); }
.heat-fa { background: rgba(34,197,94,.15); color: var(--green); }
.heat-fb { background: rgba(234,179,8,.12); color: var(--yellow); }
.heat-fc { background: rgba(239,68,68,.12); color: var(--red); }
.heat-sf { background: rgba(59,130,246,.15); color: var(--accent2); }
.heat-r  { background: rgba(148,163,184,.1); color: var(--text3); }
.cell-rank-good { color: var(--green); font-weight: 600; }
.cell-rank-mid  { color: var(--yellow); }
.cell-rank-low  { color: var(--text3); }
.cell-status { font-size: 11px; color: var(--red); font-weight: 600; }
.cell-gap { color: var(--text3); font-variant-numeric: tabular-nums; }
.cell-gap.leader { color: var(--green); font-weight: 600; }

/* ── Mobile ── */
@media (max-width: 700px) {
  body { overflow: auto; }

  .ctrl-bar {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    padding: 12px 16px 14px;
  }
  .ctrl-slot { min-width: 0; }
  .ctrl-select { width: 100%; font-size: 16px; padding: 10px 12px; }
  .ctrl-athlete-info {
    flex-direction: row; flex-wrap: wrap; align-items: center;
    gap: 8px; border-left: none; border-top: 1px solid var(--border);
    padding: 10px 0 0; margin-top: 2px;
  }
  .ctrl-info-name { font-size: 13px; }
  .ctrl-info-meta { display: none; }
  .ctrl-stats { gap: 16px; }
  .ctrl-compare { flex-direction: column; gap: 10px; }
  .ctrl-vs {
    font-size: 10px; padding: 0;
    border-top: 1px solid var(--border); padding-top: 8px;
  }
  .ctrl-compare-info { border-left: none; padding-left: 0; }

  .main { padding: 14px; }
  .section { margin-bottom: 20px; }

  .filter-bar.visible {
    flex-wrap: wrap;
    display: grid; grid-template-columns: 1fr 1fr;
    padding: 10px 12px; gap: 8px;
  }
  .filter-bar .filter-item { flex: unset; }

  .chart-header { flex-direction: column; align-items: flex-start; gap: 6px; }
  .chart-controls { width: 100%; }
  .chart-wrap { height: 220px; padding: 10px; }
  .select-sm { flex: 1; min-width: 0; font-size: 13px; }

  .pb-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 10px; }
  .pb-compare { gap: 12px; }
  .pb-time { font-size: 20px; }
  .pb-card { padding: 14px; }

  .results-table { font-size: 12px; }
  .results-table th { padding: 8px 8px; font-size: 10px; }
  .results-table td { padding: 8px 8px; }
  .cell-event { max-width: 110px; }
  .table-header { flex-wrap: wrap; gap: 8px; }
}