:root {
  --sms-bg: #f4f5fb;
  --sms-sidebar-bg: #1e1b2e;
  --sms-sidebar-hover: #2c2745;
  --sms-accent: #7c5cff;
  --sms-accent-light: #a78bfa;
  --sms-text-muted: #8b87a3;
  --sms-danger: #e5484d;
  --sms-success: #2dbf7f;
  --sms-warning: #f4b740;
  --sms-card-radius: 14px;
}

body {
  background: var(--sms-bg);
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.sms-shell { display: flex; min-height: 100vh; }

.sms-sidebar {
  width: 250px;
  flex-shrink: 0;
  background: var(--sms-sidebar-bg);
  color: #e5e3f5;
  min-height: 100vh;
  position: sticky;
  top: 0;
  display: flex;
  flex-direction: column;
}

.sms-sidebar .brand {
  padding: 20px 18px;
  font-weight: 700;
  font-size: 1.05rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  gap: 10px;
}
.sms-sidebar .brand img { height: 32px; width: 32px; object-fit: cover; border-radius: 8px; }

.sms-sidebar nav { flex: 1; overflow-y: auto; padding: 10px 0; }

.sms-sidebar .nav-link {
  color: #c8c5df;
  padding: 10px 20px;
  font-size: 0.92rem;
  border-left: 3px solid transparent;
  display: flex;
  align-items: center;
  gap: 10px;
}
.sms-sidebar .nav-link:hover { background: var(--sms-sidebar-hover); color: #fff; }
.sms-sidebar .nav-link.active {
  background: var(--sms-sidebar-hover);
  color: #fff;
  border-left-color: var(--sms-accent-light);
  font-weight: 600;
}
.sms-sidebar .nav-link.nav-sublink {
  padding-left: 40px;
  font-size: 0.86rem;
}
.sms-sidebar .nav-link[data-bs-toggle="collapse"] .fa-chevron-down {
  transition: transform 0.2s ease;
}
.sms-sidebar .nav-link[data-bs-toggle="collapse"][aria-expanded="true"] .fa-chevron-down {
  transform: rotate(180deg);
}
.sms-sidebar .nav-section {
  text-transform: uppercase;
  font-size: 0.68rem;
  letter-spacing: .08em;
  color: var(--sms-text-muted);
  padding: 14px 20px 4px;
}

.sms-main { flex: 1; min-width: 0; }

.sms-topbar {
  background: #fff;
  border-bottom: 1px solid #e9e8f5;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 10;
}

.sms-content { padding: 24px; }

.kpi-card {
  background: #fff;
  border-radius: var(--sms-card-radius);
  padding: 20px;
  box-shadow: 0 1px 3px rgba(30,27,46,0.06);
  border: 1px solid #eeedf7;
  height: 100%;
}
.kpi-card .kpi-label { color: var(--sms-text-muted); font-size: 0.8rem; text-transform: uppercase; letter-spacing: .04em; }
.kpi-card .kpi-value { font-size: 1.7rem; font-weight: 700; color: #1e1b2e; margin-top: 4px; }
.kpi-card .kpi-icon {
  width: 42px; height: 42px; border-radius: 10px;
  background: linear-gradient(135deg, var(--sms-accent), var(--sms-accent-light));
  color: #fff; display: flex; align-items: center; justify-content: center; font-size: 1.1rem;
}

.card-sms { background: #fff; border-radius: var(--sms-card-radius); border: 1px solid #eeedf7; box-shadow: 0 1px 3px rgba(30,27,46,0.05); }

.btn-primary, .btn-accent { background-color: var(--sms-accent); border-color: var(--sms-accent); }
.btn-primary:hover, .btn-accent:hover { background-color: #6a4bef; border-color: #6a4bef; }

.badge-active { background: var(--sms-success); }
.badge-locked { background: var(--sms-danger); }

.table-sms thead { background: #f4f3fb; }
.table-sms th { font-size: 0.78rem; text-transform: uppercase; letter-spacing: .03em; color: var(--sms-text-muted); font-weight: 600; }

.progress-thin { height: 8px; border-radius: 6px; }

.avatar-circle {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--sms-accent-light); color: #fff;
  display: flex; align-items: center; justify-content: center; font-weight: 600; font-size: 0.85rem;
}

/* Print-friendly documents (report cards, receipts, badges) */
@media print {
  .no-print { display: none !important; }
  body { background: #fff; }
  .print-sheet { box-shadow: none !important; border: none !important; margin: 0 !important; }
}
.print-sheet {
  background: #fff;
  max-width: 800px;
  margin: 20px auto;
  padding: 30px;
  border-radius: var(--sms-card-radius);
  border: 1px solid #eeedf7;
}

.badge-card {
  width: 340px;
  border-radius: 16px;
  padding: 18px;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.badge-card .badge-photo { width: 78px; height: 78px; border-radius: 12px; object-fit: cover; background: #fff; }

/* Grade entry: flag a score that exceeds the course's max note, once the
   user leaves the field, before saving. Also used for a grade left empty
   (and not marked "Manquant") when trying to save. */
.grade-score-input.grade-over-max,
.grade-score-input.grade-required-empty {
  border-color: #dc3545 !important;
  background-color: #fdeceb !important;
  color: #b02a2a !important;
}