:root { font-family: system-ui, Arial, sans-serif; }
body { margin: 0; background: #f6f7fb; color: #111; }

.topbar {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
  align-items: center;
  padding: 12px 16px;
  background: white;
  border-bottom: 1px solid #e5e7eb;
  position: sticky; top: 0;
}

.timer .label { font-size: 12px; color: #555; }
.elapsed { font-size: 34px; font-weight: 700; letter-spacing: 0.5px; }

.controls {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
}

button {
  padding: 10px 14px;
  border: 1px solid #d1d5db;
  background: #fff;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 700;
}
button:disabled { opacity: 0.5; cursor: not-allowed; }
button.secondary { font-weight: 700; }

.counters { display: flex; gap: 14px; justify-content: flex-end; flex-wrap: wrap; }
.k { color: #555; font-size: 12px; margin-right: 6px; }
.v { font-weight: 900; }

.layout {
  display: grid;
  grid-template-columns: 3fr 1fr;
  gap: 12px;
  padding: 12px 16px;
}

.hint {
  padding: 10px;
  background: white;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  display: grid;
  gap: 8px;
}
.hintRow { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.hintRow.small { font-size: 12px; color: #444; }
.fileLabel { display: flex; gap: 8px; align-items: center; font-weight: 800; }
.warn { margin-left: 10px; color: #b45309; font-weight: 900; }

.grid {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(4, minmax(160px, 1fr));
  gap: 10px;
}

.tile {
  background: white;
  border: 2px solid #e5e7eb;
  border-radius: 14px;
  padding: 10px;
  cursor: pointer;
  user-select: none;
  min-height: 92px;
  display: grid;
  grid-template-rows: auto auto 1fr;
  gap: 6px;
}
.tile .name { font-weight: 900; font-size: 16px; }
.tile .meta { font-size: 12px; color: #555; display: flex; justify-content: space-between; }
.tile .times { white-space: pre-line; font-variant-numeric: tabular-nums; font-size: 12px; color: #111; }

.state0 { border-color: #e5e7eb; }
.state1 { border-color: #3b82f6; background: #eff6ff; } /* in progress */
.state2 { border-color: #ef4444; background: #fef2f2; } /* final rep warning */
.state3 { border-color: #10b981; background: #ecfdf5; } /* finished */

/* Extra colour step for 4-rep sessions (e.g., 4×600m) */
.tile.stage4_1 { border-color: #3b82f6; background: #eff6ff; } /* blue */

/* More specific: only override when state1 + stage4_2 */
.tile.state1.stage4_2 { border-color: #a855f7; background: #faf5ff; } /* purple */

.sidebar .panel {
  background: white;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 10px;
  margin-bottom: 12px;
}
.panelTitle { font-weight: 900; margin-bottom: 8px; }
.panelBody { font-size: 12px; }
.feed { display: grid; gap: 8px; }
.feedItem { border: 1px solid #eee; border-radius: 10px; padding: 8px; font-size: 12px; }
.feedItem b { font-size: 13px; }

.scanInput {
  position: fixed;
  left: -9999px;
  top: -9999px;
  opacity: 0;
}

/* Session preset controls */
.session-controls {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.session-controls select,
.session-controls input[type="number"] {
  padding: 8px 10px;
  border: 1px solid #d1d5db;
  border-radius: 10px;
  background: #fff;
  font-weight: 700;
  font-family: inherit;
}

.session-controls label {
  font-weight: 900;
}

#sessionSummary {
  color: #334155;
  font-weight: 800;
}

/* ===== Analytics Modal ===== */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.35);
  display: grid;
  place-items: center;
  padding: 16px;
  z-index: 999;
}

.modalCard {
  width: min(980px, 96vw);
  background: #fff;
  border-radius: 14px;
  border: 1px solid #e5e7eb;
  box-shadow: 0 18px 40px rgba(0,0,0,0.18);
  overflow: hidden;
}
.modalCard { max-height: 90vh; overflow: auto; }

.modalHeader {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-bottom: 1px solid #e5e7eb;
}

.modalTitle { font-weight: 900; }

.modalBody { padding: 12px 14px; display: grid; gap: 10px; }
.modalBody { overflow: auto; }

.modalBody .row {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.modal select { min-width: 220px; padding: 8px 10px; border-radius: 10px; }
.chart { max-width: 100%; height: auto; }

.hidden { display: none !important; }

.summaryBox {
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 10px;
  background: #f8fafc;
  font-size: 13px;
  line-height: 1.35;
}

.chart {
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  background: #fff;
}

/* ===== Analytics: Class View table ===== */
.tableWrap {
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  overflow: auto;
  max-height: 320px;
  background: #fff;
}

.classTable {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

.classTable th, .classTable td {
  border-bottom: 1px solid #eef2f7;
  padding: 8px 10px;
  vertical-align: top;
  white-space: nowrap;
}

.classTable th {
  position: sticky;
  top: 0;
  background: #f8fafc;
  z-index: 1;
  text-align: left;
  font-weight: 900;
  cursor: pointer;
}

.badge {
  display: inline-block;
  padding: 2px 8px;
  border: 1px solid #e5e7eb;
  border-radius: 999px;
  background: #f8fafc;
  font-weight: 800;
}

/* ===== Student Report block (Analytics modal) ===== */
.studentReport {
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 12px;
  background: #fff;
}

.reportHeader {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  align-items: flex-start;
  margin-bottom: 10px;
}

.reportName { font-size: 16px; font-weight: 900; }
.reportSession { font-size: 12px; color: #475569; font-weight: 800; }

.reportMetrics {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  align-items: baseline;
}

.reflectionBox {
  margin-top: 10px;
  border: 1px dashed #cbd5e1;
  border-radius: 12px;
  padding: 10px;
  background: #f8fafc;
}

.rbTitle { font-weight: 900; margin-bottom: 6px; }
.rbGrid { display: grid; gap: 6px; font-size: 13px; }

.reportFooter {
  margin-top: 10px;
  font-size: 11px;
  color: #64748b;
  font-weight: 700;
}

/* ===== Print only the student report ===== */
@media print {
  body * { visibility: hidden; }
  #studentReport, #studentReport * { visibility: visible; }
  #studentReport {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    border: none;
    border-radius: 0;
  }
  .modalHeader, .row, .tableWrap { display: none !important; }
}



/* =========================
   RunSplit - Pair Mode UI
   ========================= */

.mode-controls {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 10px;
}

.mode-controls select,
.mode-controls input {
  min-width: 180px;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid #e5e7eb;
}

.pairPanel {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 16px;
  padding: 14px;
  margin-bottom: 12px;
  box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}

.pairHeader {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 10px;
}

.pairTitle {
  font-size: 18px;
  font-weight: 700;
}

.pairSub {
  font-size: 13px;
  opacity: 0.85;
  margin-top: 2px;
}

.pairMeta {
  font-size: 13px;
  opacity: 0.85;
  text-align: right;
  white-space: nowrap;
}

.pairSetup {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 10px 0 12px;
}

.pairSetup input {
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid #e5e7eb;
}

.pairButtons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  align-items: stretch;
}

.pairButtonCol {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

button.big {
  padding: 18px 12px;
  border-radius: 16px;
  font-size: 18px;
  font-weight: 700;
}

.pairSplits {
  background: #f8fafc;
  border: 1px solid #e5e7eb;
  border-radius: 14px;
  padding: 10px 12px;
  min-height: 48px;
  font-size: 13px;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.pairLive {
  margin-top: 10px;
  padding: 10px 12px;
  border-radius: 14px;
  background: #f1f5f9;
  border: 1px solid #e5e7eb;
  font-size: 13px;
}

.pairCards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 12px;
}

.pairCard {
  border: 1px solid #e5e7eb;
  border-radius: 16px;
  padding: 12px;
  background: #ffffff;
}

.pairCardTitle {
  font-weight: 700;
  margin-bottom: 6px;
}

.pairLabel {
  display: inline-block;
  font-size: 13px;
  padding: 4px 10px;
  border-radius: 999px;
  background: #e0f2fe;
  margin-bottom: 6px;
}

.pairStats {
  font-size: 13px;
  line-height: 1.45;
  margin-top: 8px;
}

.pairEmail {
  display: block;
  margin-top: 10px;
  font-size: 13px;
}

.pairEmail input {
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid #e5e7eb;
}

.pairSendMsg {
  margin-top: 6px;
  font-size: 12px;
}

.pairNote {
  margin-top: 10px;
  font-size: 12px;
  opacity: 0.85;
}

@media (max-width: 980px) {
  .pairSetup, .pairCards {
    grid-template-columns: 1fr;
  }
}