:root {
  --bg: #0f1115;
  --surface: #1a1d24;
  --surface-2: #22262f;
  --border: #2d313c;
  --text: #e7e9ee;
  --muted: #8a93a6;
  --accent: #4ade80;
  --accent-dark: #22c55e;
  --danger: #f87171;
  --danger-dark: #ef4444;
  --primary: #60a5fa;
  --primary-dark: #3b82f6;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --radius: 10px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.4;
}

.app-header {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 16px 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.app-header h1 {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.app-nav {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.nav-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 8px 14px;
  border-radius: 999px;
  cursor: pointer;
  font-size: 14px;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.nav-btn:hover { color: var(--text); border-color: var(--muted); }
.nav-btn.active {
  background: var(--surface-2);
  color: var(--text);
  border-color: var(--primary);
}

.app-main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px;
}

.view-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.view-header h2 {
  margin: 0;
  font-size: 22px;
  font-weight: 600;
}

.toolbar {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 14px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 14px;
  transition: background 0.15s, border-color 0.15s, transform 0.05s;
}
.btn:hover:not(:disabled) { border-color: var(--muted); }
.btn:active:not(:disabled) { transform: translateY(1px); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-primary {
  background: var(--primary-dark);
  border-color: var(--primary);
  color: white;
}
.btn-primary:hover:not(:disabled) { background: var(--primary); }
.btn-danger {
  background: transparent;
  border-color: var(--danger);
  color: var(--danger);
}
.btn-danger:hover:not(:disabled) { background: var(--danger-dark); color: white; }
.btn-sm { padding: 4px 10px; font-size: 13px; }
.btn-big {
  padding: 16px 24px;
  font-size: 18px;
  font-weight: 600;
  width: 100%;
  margin-bottom: 12px;
}

/* Forms */
.inline-field {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 14px;
}
.inline-field input, .inline-field select, input[type="number"], input[type="text"], select {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 10px;
  border-radius: 8px;
  font: inherit;
  min-width: 0;
}
input:focus, select:focus { outline: 2px solid var(--primary); outline-offset: -1px; }

.row-form {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.row-form input[type="number"] { width: 90px; }
.row-form input[type="text"] { flex: 1; min-width: 150px; }

/* Tables */
.table-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.data-table {
  width: 100%;
  border-collapse: collapse;
}
.data-table th, .data-table td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.data-table th {
  background: var(--surface-2);
  color: var(--muted);
  font-weight: 500;
  font-size: 13px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.data-table tr:last-child td { border-bottom: none; }
.col-bib, .col-rank, .col-time, .col-kmh { text-align: right; font-variant-numeric: tabular-nums; }
.col-actions { text-align: right; white-space: nowrap; }
.col-bib { width: 70px; }
.col-rank { width: 50px; }
.col-time, .col-kmh { width: 100px; font-family: var(--mono); }

.empty {
  padding: 24px;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}

.pill {
  display: inline-block;
  background: var(--surface-2);
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 1px 8px;
  border-radius: 999px;
  font-size: 12px;
  margin-left: 6px;
  font-variant-numeric: tabular-nums;
}

/* Race view */
.race-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 16px;
}
@media (max-width: 900px) {
  .race-grid { grid-template-columns: 1fr; }
}
.race-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}
.race-panel h3 {
  margin: 0 0 12px;
  font-size: 16px;
  font-weight: 600;
}
.running-list { display: flex; flex-direction: column; gap: 10px; }
.running-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 12px;
  align-items: center;
  background: var(--surface-2);
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
}
.running-info { display: flex; gap: 10px; align-items: center; }
.running-clock {
  font-family: var(--mono);
  font-size: 22px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
  min-width: 110px;
  text-align: right;
}
.running-actions { display: flex; gap: 6px; }

.pending-list, .finished-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.pending-list li, .finished-list li {
  padding: 8px 12px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  gap: 10px;
  align-items: center;
  font-size: 14px;
}
.finished-list .time {
  margin-left: auto;
  font-family: var(--mono);
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}
.finished-list .kmh {
  font-family: var(--mono);
  color: var(--muted);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}
.bib {
  display: inline-block;
  min-width: 32px;
  padding: 2px 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: var(--mono);
  font-size: 13px;
  text-align: center;
  color: var(--muted);
}

.session-meta {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 12px;
}

.whatsapp-preview {
  margin-top: 14px;
  padding: 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--mono);
  font-size: 13px;
  white-space: pre;
  overflow-x: auto;
}

/* Compare view */
.compare-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-bottom: 12px;
}
.compare-card h3 {
  margin: 0 0 10px;
  font-size: 15px;
  font-weight: 600;
  display: flex;
  gap: 10px;
  align-items: center;
}
.delta-good { color: var(--accent); }
.delta-bad { color: var(--danger); }