/* ─── Dashboard Stats ────────────────────────────────────────────────────── */
.tracker-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px 28px 64px;
}
.tracker-stats {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
}
.stats-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 12px;
}
.stats-title {
  font-size: 14px;
  font-weight: 700;
}
.stats-summary {
  font-size: 13px;
  color: var(--muted);
}
.progress-bar-bg {
  height: 8px;
  background: var(--surface-2);
  border-radius: 4px;
  overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  background: var(--accent);
  width: 0%;
  transition: width 0.4s ease;
  border-radius: 4px;
}

/* ─── Tracker Table ──────────────────────────────────────────────────────── */
.tracker-table-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow-x: auto;
}
.tracker-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 800px;
}
.tracker-table th {
  background: #fafbfc;
  color: #7b848e;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .08em;
  text-align: center;
  font-weight: 700;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
}
.tracker-table th.col-name { text-align: left; }
.tracker-table td {
  padding: 10px 16px;
  border-bottom: 1px solid var(--line);
  text-align: center;
  vertical-align: middle;
}
.tracker-table td.col-name { text-align: left; }
.tracker-table tr:last-child td { border-bottom: 0; }

/* Unit Row */
.unit-row {
  background: #f8faff;
  cursor: pointer;
  transition: background .15s;
}
.unit-row:hover { background: #edf2fb; }
.unit-title-cell {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 14px;
}
.unit-code {
  background: var(--accent);
  color: #fff;
  font-size: 10px;
  padding: 3px 6px;
  border-radius: 4px;
}
.unit-row.collapsed .collapse-icon { transform: rotate(-90deg); }
.collapse-icon {
  width: 16px; height: 16px;
  transition: transform 0.2s;
  color: var(--muted);
}

/* Section Row */
.section-row {
  background: #fff;
}
.section-row.hidden { display: none; }
.section-title-cell {
  padding-left: 44px !important;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}
.section-code {
  color: #7b848e;
  font-size: 10px;
  font-weight: 700;
  background: var(--surface-2);
  padding: 2px 5px;
  border-radius: 4px;
}

/* Checkboxes */
.custom-checkbox {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  width: 22px;
  height: 22px;
}
.custom-checkbox input { display: none; }
.custom-checkbox .checkmark {
  width: 18px; height: 18px;
  border: 2px solid #cbd5e1;
  border-radius: 4px;
  transition: all .15s;
  position: relative;
  background: #fff;
}
.custom-checkbox:hover .checkmark { border-color: #94a3b8; }
.custom-checkbox input:checked + .checkmark {
  background: var(--accent);
  border-color: var(--accent);
}
.custom-checkbox input:checked + .checkmark::after {
  content: "";
  position: absolute;
  left: 5px; top: 2px;
  width: 4px; height: 8px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.custom-checkbox.disabled { pointer-events: none; opacity: 0.4; }
.aggregate-text { font-size: 12px; color: var(--muted); font-weight: 600; }

/* Revision Counter */
.rev-counter {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--surface-2);
  border-radius: 20px;
  padding: 4px 8px;
  border: 1px solid var(--line);
}
.rev-btn {
  width: 20px; height: 20px;
  border: none;
  background: none;
  color: var(--muted);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background .15s;
}
.rev-btn:hover { background: #cbd5e1; color: var(--text); }
.rev-count {
  font-size: 12px;
  font-weight: 700;
  min-width: 14px;
  text-align: center;
}
.rev-counter.rev-0 .rev-count { color: var(--muted); }
.rev-counter.rev-1 .rev-count { color: #ef4444; } /* Red */
.rev-counter.rev-2 .rev-count { color: #f59e0b; } /* Yellow/Orange */
.rev-counter.rev-3 .rev-count { color: #22c55e; } /* Green */
.rev-counter.rev-4 .rev-count { color: #3157d5; } /* Blue for >= 4 */

/* ─── Tracker Footer ──────────────────────────────────────────────────────── */
.tracker-container + .site-footer {
  max-width: 1280px;
  margin: 16px auto 0;
  padding: 0 24px 40px;
}
@media (max-width: 768px) {
  .tracker-container + .site-footer {
    padding: 0 16px 28px;
    margin-top: 8px;
  }
}