/* ================================================================
   ConnecTEEN — Design System v2.0
   ================================================================ */

/* --- 1. Google Fonts (Open Sans + Dosis, siguiendo la identidad de intras.es) --- */
@import url('https://fonts.googleapis.com/css2?family=Open+Sans:wght@400;500;600;700&family=Dosis:wght@400;500;600;700&display=swap');

/* --- 2. Variables de marca (paleta INTRAS: azul #4a85bf, rojo #e41919) --- */
:root {
  --ct-primary:        #4A85BF;
  --ct-primary-dark:   #34597E;
  --ct-primary-hover:  #3D74A8;
  --ct-primary-light:  #EAF2F9;
  --ct-success:        #059669;
  --ct-success-light:  #ECFDF5;
  --ct-danger:         #E41919;
  --ct-danger-light:   #FDECEC;
  --ct-warning:        #D97706;
  --ct-warning-light:  #FFFBEB;
  --ct-info:           #0284C7;
  --ct-info-light:     #F0F9FF;
  --ct-bg:             #F8FAFC;
  --ct-surface:        #FFFFFF;
  --ct-text:           #1E293B;
  --ct-text-muted:     #64748B;
  --ct-border:         #E2E8F0;
  --ct-font-heading:   'Dosis', 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --ct-shadow-sm:      0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --ct-shadow:         0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
  --ct-shadow-md:      0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.05);
  --ct-shadow-lg:      0 20px 30px -8px rgba(0,0,0,0.10);
  --ct-radius:         0.625rem;
  --ct-radius-sm:      0.375rem;
  --ct-radius-lg:      1rem;
  --ct-transition:     0.18s ease;
}

/* --- 3. Reset base --- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--ct-bg);
  color: var(--ct-text);
  line-height: 1.6;
  font-size: 0.9375rem;
  -webkit-font-smoothing: antialiased;
}

/* --- 4. Barra de navegación --- */
.ct-navbar {
  background: var(--ct-surface);
  border-bottom: 1px solid var(--ct-border);
  padding: 0 1.5rem;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--ct-shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.ct-navbar-brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
}

.ct-navbar-logo {
  height: 32px;
  width: auto;
}

.ct-navbar-title {
  font-family: var(--ct-font-heading);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--ct-primary);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.ct-navbar-info {
  font-size: 0.8125rem;
  color: var(--ct-text-muted);
}

.ct-navbar-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* --- 5. Página / container --- */
.ct-page {
  padding: 2rem 0 3rem;
}

/* --- 6. Cabecera de página --- */
.ct-page-header {
  margin-bottom: 1.75rem;
}

.ct-page-header h1 {
  font-family: var(--ct-font-heading);
  font-size: 1.625rem;
  font-weight: 600;
  color: var(--ct-primary);
  margin-bottom: 0.125rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  line-height: 1.3;
}

/* Títulos de las páginas de administración (admin.php / centre.php),
   que no usan .ct-page-header pero sí las mismas clases de Bootstrap. */
h1.h3, h3.h5 {
  font-family: var(--ct-font-heading);
  font-weight: 600;
  color: var(--ct-primary);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.card-header {
  font-family: var(--ct-font-heading);
  color: var(--ct-primary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.ct-page-header .ct-subtitle {
  color: var(--ct-text-muted);
  font-size: 0.9375rem;
  margin: 0;
}

/* --- 7. Cards --- */
.card {
  background: var(--ct-surface);
  border: 1px solid var(--ct-border);
  border-radius: var(--ct-radius);
  box-shadow: var(--ct-shadow-sm);
  overflow: hidden;
}

.card-header {
  background: transparent;
  border-bottom: 1px solid var(--ct-border);
  padding: 0.875rem 1.25rem;
  font-weight: 600;
  color: var(--ct-text);
  font-size: 0.9rem;
  letter-spacing: 0.005em;
}

.card-body {
  padding: 1.25rem;
}

.card-footer {
  background: var(--ct-bg);
  border-top: 1px solid var(--ct-border);
  padding: 0.875rem 1.25rem;
}

/* Cards del landing (hero) */
.ct-hero-card {
  border-radius: var(--ct-radius-lg);
  box-shadow: var(--ct-shadow-md);
  transition: transform var(--ct-transition), box-shadow var(--ct-transition);
  cursor: pointer;
}
.ct-hero-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--ct-shadow-lg);
}
.ct-hero-card .card-body {
  padding: 2rem;
}
.ct-hero-card.ct-student { border-top: 4px solid var(--ct-success); }
.ct-hero-card.ct-teacher { border-top: 4px solid var(--ct-primary); }

.ct-hero-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.125rem;
}
.ct-hero-icon.student { background: var(--ct-success-light); }
.ct-hero-icon.teacher { background: var(--ct-primary-light); }

.ct-hero-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.ct-hero-card p {
  color: var(--ct-text-muted);
  font-size: 0.9rem;
  line-height: 1.55;
  margin-bottom: 1.25rem;
}

/* --- 8. Formularios --- */
.form-label {
  font-weight: 500;
  font-size: 0.875rem;
  color: var(--ct-text);
  margin-bottom: 0.375rem;
}

.form-control,
.form-select {
  border: 1.5px solid var(--ct-border);
  border-radius: var(--ct-radius-sm);
  padding: 0.5625rem 0.875rem;
  font-size: 0.9375rem;
  color: var(--ct-text);
  background-color: var(--ct-surface);
  transition: border-color var(--ct-transition), box-shadow var(--ct-transition);
  line-height: 1.5;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--ct-primary);
  box-shadow: 0 0 0 3px rgba(74, 133, 191, 0.12);
  outline: none;
}

.form-control::placeholder { color: var(--ct-text-muted); opacity: 0.65; }

.form-text {
  font-size: 0.8125rem;
  color: var(--ct-text-muted);
  margin-top: 0.25rem;
}

/* --- 9. Botones --- */
.btn {
  font-weight: 500;
  font-size: 0.9rem;
  border-radius: var(--ct-radius-sm);
  padding: 0.5rem 1rem;
  transition: all var(--ct-transition);
  border: 1.5px solid transparent;
  line-height: 1.5;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
}

.btn:focus-visible {
  outline: 2px solid var(--ct-primary);
  outline-offset: 2px;
}

.btn-primary {
  background-color: var(--ct-primary);
  border-color: var(--ct-primary);
  color: #fff;
}
.btn-primary:hover, .btn-primary:active {
  background-color: var(--ct-primary-hover);
  border-color: var(--ct-primary-hover);
  color: #fff;
}

.btn-success {
  background-color: var(--ct-success);
  border-color: var(--ct-success);
  color: #fff;
}
.btn-success:hover {
  background-color: #047857;
  border-color: #047857;
  color: #fff;
}

.btn-danger {
  background-color: var(--ct-danger);
  border-color: var(--ct-danger);
  color: #fff;
}
.btn-danger:hover {
  background-color: #B91C1C;
  border-color: #B91C1C;
  color: #fff;
}

.btn-outline-primary {
  color: var(--ct-primary);
  border-color: var(--ct-primary);
  background: transparent;
}
.btn-outline-primary:hover {
  background-color: var(--ct-primary);
  color: #fff;
}

.btn-outline-secondary {
  color: var(--ct-text-muted);
  border-color: var(--ct-border);
  background: transparent;
}
.btn-outline-secondary:hover {
  background-color: var(--ct-bg);
  color: var(--ct-text);
  border-color: #CBD5E1;
}

.btn-link {
  color: var(--ct-primary);
  font-weight: 500;
  text-decoration: none;
  padding: 0.25rem 0;
  border: none;
  background: none;
}
.btn-link:hover { color: var(--ct-primary-dark); text-decoration: underline; }

.btn-lg {
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  border-radius: var(--ct-radius);
}

.btn-sm {
  padding: 0.3125rem 0.75rem;
  font-size: 0.8125rem;
}

.btn:disabled, .btn[disabled] {
  opacity: 0.55;
  pointer-events: none;
}

/* --- 10. Slider de rango (personalizado) --- */
.ct-slider-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.ct-slider-value {
  background: var(--ct-primary);
  color: #fff;
  font-size: 0.875rem;
  font-weight: 700;
  min-width: 2.25rem;
  height: 2.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  flex-shrink: 0;
  transition: background var(--ct-transition);
}

.ct-slider-min-label,
.ct-slider-max-label {
  font-size: 0.75rem;
  color: var(--ct-text-muted);
  line-height: 1.3;
  text-align: center;
  flex-shrink: 0;
  max-width: 90px;
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--ct-border);
  cursor: pointer;
  outline: none;
  flex: 1;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--ct-primary);
  cursor: pointer;
  box-shadow: 0 1px 4px rgba(74, 133, 191, 0.35);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  border: 2px solid #fff;
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.18);
  box-shadow: 0 2px 8px rgba(74, 133, 191, 0.5);
}

input[type="range"]::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--ct-primary);
  cursor: pointer;
  border: 2px solid #fff;
  box-shadow: 0 1px 4px rgba(74, 133, 191, 0.35);
}

input[type="range"]:focus::-webkit-slider-thumb {
  box-shadow: 0 0 0 4px rgba(74, 133, 191, 0.2);
}

/* --- 11. Badges --- */
.badge {
  font-weight: 500;
  font-size: 0.73rem;
  padding: 0.3em 0.6em;
  border-radius: 0.375rem;
  letter-spacing: 0.01em;
}

.bg-success  { background-color: var(--ct-success) !important; }
.bg-danger   { background-color: var(--ct-danger)  !important; }
.bg-secondary { background-color: #64748B !important; }
.bg-dark     { background-color: #334155 !important; }
.bg-primary  { background-color: var(--ct-primary) !important; }

/* Badge de código de sesión */
.ct-session-badge {
  display: inline-flex;
  align-items: center;
  background: var(--ct-primary-light);
  color: var(--ct-primary-dark);
  border-radius: var(--ct-radius-sm);
  padding: 0.2rem 0.65rem;
  font-weight: 600;
  font-family: 'Courier New', monospace;
  font-size: 1rem;
  letter-spacing: 0.07em;
}

/* --- 12. Tablas --- */
.table {
  font-size: 0.875rem;
  margin-bottom: 0;
  color: var(--ct-text);
}

.table th {
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ct-text-muted);
  border-bottom: 2px solid var(--ct-border) !important;
  padding: 0.75rem 0.9rem;
  white-space: nowrap;
}

.table td {
  padding: 0.6875rem 0.9rem;
  vertical-align: middle;
  border-color: var(--ct-border);
}

.table-striped > tbody > tr:nth-of-type(odd) > * {
  background-color: rgba(248, 250, 252, 0.7);
}

.table-bordered td,
.table-bordered th {
  border-color: var(--ct-border) !important;
}

.table-light th { background: var(--ct-bg) !important; }

/* Tablas con filtro/orden (ct-datatable, ver assets/js/admin-tables.js) */
.ct-table-filter { max-width: 320px; }
table.ct-datatable thead th { cursor: pointer; user-select: none; }
table.ct-datatable thead th.text-end { cursor: default; }
table.ct-datatable thead th[data-sort-dir="asc"]::after { content: " \25B2"; }
table.ct-datatable thead th[data-sort-dir="desc"]::after { content: " \25BC"; }

/* --- 13. Alertas --- */
.alert {
  border-radius: var(--ct-radius-sm);
  border: none;
  font-size: 0.9375rem;
  padding: 0.875rem 1.125rem;
  border-left: 4px solid transparent;
}

.alert ul { margin-bottom: 0; padding-left: 1.25rem; }
.alert li + li { margin-top: 0.2rem; }

.alert-danger  { background-color: var(--ct-danger-light);  color: #991B1B; border-left-color: var(--ct-danger);  }
.alert-success { background-color: var(--ct-success-light); color: #065F46; border-left-color: var(--ct-success); }
.alert-warning { background-color: var(--ct-warning-light); color: #92400E; border-left-color: var(--ct-warning); }
.alert-info    { background-color: var(--ct-info-light);    color: #0C4A6E; border-left-color: var(--ct-info);    }

/* --- 14. Modales --- */
.modal-content {
  border: none;
  border-radius: var(--ct-radius);
  box-shadow: 0 24px 48px rgba(0,0,0,0.15);
}

.modal-header {
  border-bottom: 1px solid var(--ct-border);
  padding: 1rem 1.25rem;
}

.modal-title { font-size: 1rem; font-weight: 600; }

.modal-body { padding: 1.25rem; }

.modal-footer {
  border-top: 1px solid var(--ct-border);
  padding: 0.875rem 1.25rem;
  gap: 0.5rem;
}

/* --- 15. Login / pantalla centrada --- */
.ct-login-page {
  min-height: calc(100vh - 60px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
}

.ct-login-card {
  width: 100%;
  max-width: 440px;
  border-radius: var(--ct-radius-lg);
  box-shadow: var(--ct-shadow-lg);
  border: none;
}

.ct-login-top {
  text-align: center;
  padding: 2rem 2rem 1.25rem;
  border-bottom: 1px solid var(--ct-border);
}

.ct-login-top img {
  height: 42px;
  margin-bottom: 0.875rem;
}

.ct-login-top h2 {
  font-family: var(--ct-font-heading);
  font-size: 1.375rem;
  font-weight: 600;
  color: var(--ct-primary);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 0.25rem;
}

.ct-login-top p {
  color: var(--ct-text-muted);
  font-size: 0.875rem;
  margin: 0;
}

.ct-login-body { padding: 1.5rem 2rem 2rem; }

/* --- 16. Cuestionario --- */
.ct-questionnaire { max-width: 840px; margin: 0 auto; }

.ct-area-card {
  margin-bottom: 1.5rem;
  border-left: 4px solid var(--ct-primary);
}

.ct-area-header {
  background: var(--ct-primary-light);
  color: var(--ct-primary-dark);
  font-weight: 600;
  padding: 0.75rem 1.25rem;
  font-size: 0.9rem;
  border-radius: 0;
}

.ct-question {
  padding: 1.125rem 0;
  border-bottom: 1px solid var(--ct-border);
}

.ct-question:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.ct-question-text {
  font-size: 0.9375rem;
  color: var(--ct-text);
  margin-bottom: 0.875rem;
  line-height: 1.55;
}

/* Colores por área */
.ct-area-emotional { border-left-color: #6366F1 !important; }
.ct-area-social     { border-left-color: #0EA5E9 !important; }
.ct-area-physical   { border-left-color: #10B981 !important; }
.ct-area-school     { border-left-color: #F59E0B !important; }
.ct-area-selfesteem { border-left-color: #EC4899 !important; }

.ct-area-emotional .ct-area-header { background: #EEF2FF; color: #4338CA; }
.ct-area-social    .ct-area-header { background: #F0F9FF; color: #0369A1; }
.ct-area-physical  .ct-area-header { background: #ECFDF5; color: #065F46; }
.ct-area-school    .ct-area-header { background: #FFFBEB; color: #92400E; }
.ct-area-selfesteem .ct-area-header { background: #FDF2F8; color: #9D174D; }

/* Barra de progreso */
.ct-progress-wrap {
  position: sticky;
  top: 60px; /* justo debajo de .ct-navbar */
  z-index: 900;
  background: var(--ct-bg);
  padding-top: 0.75rem;
  margin-bottom: 1rem;
}

.ct-progress-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ct-text-muted);
}

.ct-progress {
  height: 16px;
  background: #fff;
  border: 1px solid var(--ct-border);
  border-radius: 999px;
  margin-bottom: 0.25rem;
  overflow: hidden;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.08);
}

.ct-progress-bar {
  height: 100%;
  border-radius: 999px;
  background: #215C6E; /* color inicial; JS lo actualiza según el progreso */
  transition: width 0.3s ease, background-color 0.3s ease;
}

/* Emoticonos en los extremos del slider */
.ct-slider-emoji {
  display: block;
  font-size: 1.1rem;
  line-height: 1;
  margin-bottom: 0.125rem;
}

/* --- 17. Pantalla de agradecimiento --- */
.ct-thankyou {
  text-align: center;
  padding: 2.5rem 1.5rem;
}

.ct-thankyou-icon {
  font-size: 3.5rem;
  line-height: 1;
  margin-bottom: 1rem;
  display: block;
}

.ct-thankyou h2 {
  font-family: var(--ct-font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--ct-primary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

/* --- 18. Resultados --- */
.ct-result-meta dt {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ct-text-muted);
  margin-bottom: 0.125rem;
}

.ct-result-meta dd {
  margin-bottom: 0.625rem;
  color: var(--ct-text);
  font-size: 0.9375rem;
}

.ct-score-big {
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
}

/* Cabecera y marca de agua exclusivas del informe PDF: solo visibles al
   imprimir (ver @media print). */
.ct-print-header,
.ct-print-watermark {
  display: none;
}

/* --- 19. Footer --- */
.ct-footer {
  text-align: center;
  padding: 1.25rem 0 1rem;
  color: var(--ct-text-muted);
  font-size: 0.8125rem;
  border-top: 1px solid var(--ct-border);
  margin-top: 3rem;
  background-color: rgba(255, 255, 255, 0.5);
}

.ct-footer-logos {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
  margin-bottom: 0.625rem;
}

.ct-footer-logo {
  height: 56px;
  width: auto;
  object-fit: contain;
}

/* --- Fondos de página de marca (imágenes en assets/img/) --- */
.ct-bg-home {
  background-image: url('../img/bg-home.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-color: var(--ct-bg);
}
.ct-bg-student {
  background-image: url('../img/bg-student.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-color: var(--ct-bg);
}
.ct-bg-test {
  background-image: url('../img/bg-test.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-color: var(--ct-bg);
}
/* Estas páginas llevan tarjetas/paneles blancos encima del fondo; se sube
   un poco la opacidad de las cards para que el texto siga siendo legible
   sobre la imagen. */
.ct-bg-home .card,
.ct-bg-student .ct-login-card,
.ct-bg-test .card {
  background-color: rgba(255, 255, 255, 0.97);
}

/* Pestañas (nav-tabs): fondo blanco tanto activas como inactivas para que
   el texto se lea sobre las páginas con imagen de fondo. */
.nav-tabs .nav-link {
  background-color: #fff;
  color: var(--ct-text);
}
.nav-tabs .nav-link.active {
  background-color: #fff;
  color: var(--ct-primary);
  font-weight: 600;
}
.nav-tabs .nav-link:hover:not(.active) {
  background-color: #fff;
  isolation: isolate;
}

/* --- 20. Utilidades --- */
.text-primary { color: var(--ct-primary) !important; }
.text-success { color: var(--ct-success) !important; }
.text-danger  { color: var(--ct-danger)  !important; }
.text-muted   { color: var(--ct-text-muted) !important; }

.ct-divider {
  border: none;
  border-top: 1px solid var(--ct-border);
  margin: 1.25rem 0;
}

.fw-600 { font-weight: 600; }

/* --- 21. Responsive --- */
@media (max-width: 768px) {
  .ct-page { padding: 1.25rem 0 2rem; }
  .ct-page-header h1 { font-size: 1.375rem; }
  .ct-navbar { padding: 0 1rem; }
  .ct-login-top { padding: 1.5rem 1.5rem 1rem; }
  .ct-login-body { padding: 1.25rem 1.5rem 1.5rem; }
  .ct-hero-card .card-body { padding: 1.5rem; }
  .table-responsive { font-size: 0.8125rem; }
  .ct-slider-min-label,
  .ct-slider-max-label { max-width: 70px; font-size: 0.7rem; }
  .ct-slider-value { min-width: 2rem; height: 2rem; font-size: 0.8125rem; }
}

@media (max-width: 480px) {
  .ct-navbar-title { display: none; }
  .ct-question-text { font-size: 0.9rem; }
}

/* --- 22. Impresión --- */
@media print {
  @page { size: portrait; margin: 34mm 10mm 22mm 10mm; }
  .ct-navbar, .no-print { display: none !important; }

  /* Cabecera y marca de agua: en Chrome, un position:fixed con "bottom:0"
     se repite de forma fiable en todas las páginas al imprimir, pero uno
     con "top" (aunque sea top:0) NO se repite de forma fiable: solo
     aparece una vez, donde caiga en el flujo del documento. Por eso aquí
     usamos SIEMPRE bottom:0 como ancla (igual que el pie, que sí funciona)
     y un contenedor a pantalla completa con flexbox para colocar el
     contenido arriba o centrado según toque. */
  .ct-print-header {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    margin: 0;
    pointer-events: none;
  }
  .ct-print-header-inner {
    text-align: center;
    padding: 6mm 10mm 4mm;
    border-bottom: 1px solid #ccc;
    background-color: #fff;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
  .ct-print-header img {
    height: 64px;
    width: auto;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
  .ct-print-watermark {
    display: flex;
    align-items: center;
    justify-content: center;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    margin: 0;
    pointer-events: none;
  }
  .ct-print-watermark img {
    width: 70%;
    max-width: 480px;
    opacity: 0.06;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
  body {
    background: #fff !important;
    font-size: 11pt;
    color: #000;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
  body.ct-bg-test {
    background-image: url('../img/bg-test.jpg') !important;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
  }
  .card { box-shadow: none !important; border: 1px solid #ccc !important; break-inside: avoid; }
  /* La tarjeta de "Detalle por alumno" puede ser mucho más alta que una
     página entera (una fila por pregunta): si se le prohíbe partirse
     (como al resto de tarjetas), el navegador la empuja fuera de la
     página y el texto acaba solapado con el pie fijo. Aquí se permite
     que se reparta con normalidad entre páginas. */
  .ct-detail-matrix-card { break-inside: auto; }
  .container { max-width: 100% !important; padding: 0 !important; }
  .ct-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    margin-top: 0;
    padding: 2mm 0;
    border-top: 1px solid #ddd;
    background-color: rgba(255, 255, 255, 0.85);
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
  .ct-footer-logos { gap: 0.75rem; margin-bottom: 0.15rem; }
  .ct-footer-logo {
    height: 22px;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
  .ct-footer small { font-size: 7pt; }
  /* Las secciones plegables (mostrar/ocultar) siempre se imprimen completas,
     estén o no expandidas en pantalla en ese momento. */
  .collapse { display: block !important; height: auto !important; overflow: visible !important; }
  /* Los contenedores con scroll horizontal no deben recortar la tabla al imprimir. */
  .table-responsive { overflow: visible !important; }

  /* Tabla de detalle pregunta x alumno: una fila por pregunta, una columna
     por alumno. Pensada para caber en vertical (retrato). */
  .ct-detail-matrix { font-size: 8pt !important; table-layout: fixed; width: 100%; }
  .ct-detail-matrix th, .ct-detail-matrix td { padding: 2px 4px !important; overflow: hidden; }
  .ct-detail-matrix thead th { white-space: nowrap; text-align: center; }
  .ct-detail-matrix tbody td:first-child,
  .ct-detail-matrix thead th:first-child {
    text-align: left;
    white-space: nowrap;
    width: 70px;
  }
  /* Repite la fila de cabecera (números de alumno) al principio de cada
     página que ocupe la tabla, y evita partir una fila (pregunta) por la mitad. */
  .ct-detail-matrix thead { display: table-header-group; }
  .ct-detail-matrix tr { break-inside: avoid; }
}

/* --- 23. Animación de entrada --- */
@keyframes ct-fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.ct-fade-in {
  animation: ct-fadeIn 0.3s ease forwards;
}