:root,
[data-theme="dark"] {
  --dmc-navy: #1a2f4a;
  --dmc-blue: #2f5f8f;
  --dmc-silver: #9ca8b8;
  --dmc-light: #eef2f7;
  --bg: #0c1219;
  --panel: #141e2b;
  --panel-2: #1c2a3d;
  --text: #eef2f7;
  --muted: #94a3b8;
  --accent: #3b82f6;
  --success: #22c55e;
  --warn: #f59e0b;
  --error: #ef4444;
  --border: #2a3d55;
}

[data-theme="light"] {
  --bg: #eef2f7;
  --panel: #ffffff;
  --panel-2: #f8fafc;
  --text: #0f172a;
  --muted: #64748b;
  --border: #cbd5e1;
  --dmc-silver: #64748b;
}

[data-theme="light"] header {
  background: linear-gradient(135deg, #e2e8f0 0%, #cbd5e1 55%, #94a3b8 100%) !important;
}

[data-theme="light"] .brand-text h1,
[data-theme="light"] .brand-text p,
[data-theme="light"] .brand-text .tagline,
[data-theme="light"] .brand-text .subtitle {
  color: #0f172a !important;
}

[data-theme="light"] .top-nav a {
  color: #334155;
}

[data-theme="light"] .top-nav a.active {
  color: #0f172a;
  background: rgba(47, 95, 143, 0.15);
}

[data-theme="light"] .nav-toggle {
  color: #0f172a;
  border-color: rgba(15, 23, 42, 0.2);
  background: rgba(255, 255, 255, 0.65);
}

[data-theme="light"] .summary-frame {
  background: #fff;
}

.health-strip {
  max-width: 1280px;
  margin: 0 auto;
  padding: 10px 28px 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  font-size: 0.82rem;
  color: var(--muted);
}

.health-strip strong {
  color: var(--text);
  font-weight: 600;
}

.health-strip .pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.12);
  border: 1px solid var(--border);
}

[data-theme="light"] .health-strip .pill {
  background: rgba(255, 255, 255, 0.85);
}

[data-theme="light"] .ops-block {
  background: rgba(15, 23, 42, 0.04);
}

[data-theme="light"] th {
  background: rgba(15, 23, 42, 0.04);
}

[data-theme="light"] .card .value,
[data-theme="light"] .panel-head,
[data-theme="light"] .detail h2,
[data-theme="light"] .reminder-list {
  color: var(--text) !important;
}

[data-theme="light"] .student-picker-toggle {
  background: var(--panel);
  color: var(--text);
  border-color: var(--border);
}

[data-theme="light"] .student-tabs.open,
[data-theme="light"] .filters.open,
[data-theme="light"] .student-picker-panel.open {
  background: linear-gradient(180deg, #f8fafc 0%, #eef2f7 100%);
  border-color: var(--border);
}

[data-theme="light"] .student-tabs.open::before,
[data-theme="light"] .filters.open::before,
[data-theme="light"] .student-picker-panel.open::before {
  color: var(--muted);
}

[data-theme="light"] .student-tabs.open .student-tab,
[data-theme="light"] .filters.open .filter-btn,
[data-theme="light"] .student-picker-option {
  color: var(--text);
  border-color: var(--border);
  background: rgba(255, 255, 255, 0.85);
}

.health-strip .pill.ok { color: var(--success); }
.health-strip .pill.warn { color: var(--warn); }
.health-strip .pill.bad { color: var(--error); }

.dashboard-controls {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin: -8px 0 18px;
}

.dashboard-controls .refresh-btn {
  background: var(--dmc-blue);
  color: #fff;
  border: none;
  border-radius: 10px;
  padding: 11px 18px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.92rem;
  box-shadow: 0 2px 8px rgba(47, 95, 143, 0.35);
  transition: filter 0.15s ease, transform 0.15s ease;
}

.dashboard-controls .refresh-btn:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

.theme-toggle {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 8px 12px;
  cursor: pointer;
  font-size: 0.85rem;
  position: relative;
  z-index: 20;
  flex-shrink: 0;
}

.theme-toggle:hover {
  background: rgba(255, 255, 255, 0.06);
}

.health-loading {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.health-spinner {
  width: 16px;
  height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: health-spin 0.75s linear infinite;
  flex-shrink: 0;
}

@keyframes health-spin {
  to {
    transform: rotate(360deg);
  }
}

.reminder-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.reminder-actions button {
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.15);
  color: var(--text);
  border-radius: 8px;
  padding: 5px 10px;
  font-size: 0.78rem;
  cursor: pointer;
}

.reminder-actions button:hover {
  border-color: var(--dmc-blue);
}

.agenda-day {
  border-bottom: 1px solid var(--border);
  padding: 12px 16px;
}

.agenda-day h3 {
  margin: 0 0 8px;
  font-size: 0.92rem;
  color: var(--muted);
}

.agenda-event {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 8px 0;
  font-size: 0.88rem;
}

.agenda-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-top: 5px;
  flex-shrink: 0;
}