@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

/* ---------- Design tokens ---------- */
:root {
  --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;

  --color-primary: #052a86;
  --color-primary-dark: #031c5c;
  --color-primary-light: #e8ebf6;

  --color-accent: #e0b51a;
  --color-accent-dark: #a9860a;
  --color-accent-light: #fbf2d9;

  --color-success: #16a34a;
  --color-success-bg: #dcfce7;
  --color-success-text: #166534;

  --color-warning: #d97706;
  --color-warning-bg: #fef3c7;
  --color-warning-text: #92400e;

  --color-danger: #dc2626;
  --color-danger-bg: #fee2e2;
  --color-danger-text: #991b1b;

  --color-neutral: #64748b;
  --color-neutral-bg: #f1f5f9;
  --color-neutral-text: #475569;

  --surface: #ffffff;
  --surface-muted: #f8fafc;
  --border: #e2e8f0;
  --text: #0f172a;
  --text-muted: #64748b;
  --text-faint: #94a3b8;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-pill: 999px;

  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 16px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.12);

  --transition: 150ms cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  box-sizing: border-box;
}

svg {
  flex-shrink: 0;
}

svg:not([width]):not([height]) {
  width: 1em;
  height: 1em;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  background: var(--color-neutral-bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0;
}

.brand-mark {
  height: 38px;
  width: auto;
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.brand-mark img {
  height: 100%;
  width: auto;
  object-fit: contain;
}

.avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  flex-shrink: 0;
}

.user-meta {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.user-meta strong {
  font-size: 0.85rem;
}

.user-meta span {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: capitalize;
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  margin: 0;
  padding: 0;
}

.icon-btn:hover {
  background: var(--color-danger-bg);
  border-color: var(--color-danger-bg);
  color: var(--color-danger-text);
}

.icon-btn svg {
  width: 17px;
  height: 17px;
}

/* ---------- App shell (sidebar layout) ---------- */
.app-shell {
  display: flex;
  min-height: 100vh;
  align-items: stretch;
}

.sidebar {
  width: 264px;
  flex-shrink: 0;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  align-self: flex-start;
  height: 100vh;
  z-index: 30;
}

.sidebar__brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 6px;
  padding: 22px 20px 18px;
  border-bottom: 1px solid var(--border);
}

.sidebar__brand .brand-mark {
  height: 96px;
}

.sidebar__brand-text strong {
  display: block;
  font-size: 0.92rem;
}

.sidebar__brand-text span {
  font-size: 0.74rem;
  color: var(--text-muted);
}

.sidebar__nav {
  flex: 1;
  padding: 14px 12px;
  overflow-y: auto;
}

.nav-section {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-faint);
  padding: 14px 12px 6px;
}

.nav-section:first-child {
  padding-top: 4px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.87rem;
  font-weight: 500;
  margin-bottom: 2px;
  transition: background var(--transition), color var(--transition);
}

.nav-link svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.nav-link:hover {
  background: var(--surface-muted);
  color: var(--text);
}

.nav-link.active {
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  font-weight: 600;
}

.sidebar__footer {
  padding: 14px 16px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
}

.sidebar__footer .user-meta {
  flex: 1;
  min-width: 0;
}

.sidebar__footer .user-meta strong {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.main__topbar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 32px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  position: sticky;
  top: 0;
  z-index: 10;
}

.main__topbar-titles {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.main__topbar-titles strong {
  font-size: 0.95rem;
}

.main__topbar-titles span {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.sidebar-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  margin: 0;
  padding: 0;
  flex-shrink: 0;
}

.sidebar-toggle svg {
  width: 18px;
  height: 18px;
}

.sidebar-backdrop {
  display: none;
}

@media (max-width: 900px) {
  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    transform: translateX(-100%);
    transition: transform var(--transition);
    box-shadow: var(--shadow-lg);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .sidebar-toggle {
    display: inline-flex;
  }

  .sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.4);
    z-index: 25;
  }

  .sidebar-backdrop.open {
    display: block;
  }

  .main__topbar {
    padding: 14px 18px;
  }
}

/* ---------- Layout ---------- */
.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 28px 24px 64px;
}

.page-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.page-header h1 {
  font-size: 1.5rem;
}

.page-header__greeting {
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-header__greeting svg {
  width: 22px;
  height: 22px;
  color: var(--color-primary);
}

.page-header p {
  margin: 6px 0 0;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.section-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0 0 4px;
}

.section-subtitle {
  margin: 0 0 18px;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ---------- Cards ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
}

.card + .card {
  margin-top: 0;
}

/* ---------- Stat cards ---------- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: inherit;
  transition: box-shadow var(--transition), transform var(--transition);
}

a.stat-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.stat-card__icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: var(--surface-muted);
  color: var(--text-muted);
}

.stat-card__icon svg {
  width: 20px;
  height: 20px;
}

.stat-card__value {
  font-size: 1.4rem;
  font-weight: 800;
  line-height: 1.1;
}

.stat-card__label {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 600;
}

/* ---------- Forms ---------- */
label {
  display: block;
  font-weight: 600;
  margin: 14px 0 6px;
  font-size: 0.85rem;
  color: var(--text);
}

label:first-child {
  margin-top: 0;
}

input,
select,
textarea {
  width: 100%;
  padding: 10px 13px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  font-family: inherit;
  font-size: 0.92rem;
  background: var(--surface);
  color: var(--text);
  transition: border-color var(--transition), box-shadow var(--transition);
}

input:hover,
select:hover,
textarea:hover {
  border-color: #cbd5e1;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

input[type='file'] {
  padding: 8px;
  font-size: 0.85rem;
}

.field-hint {
  font-size: 0.78rem;
  color: var(--text-faint);
  margin-top: 4px;
}

.form-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.form-row > * {
  flex: 1;
  min-width: 180px;
}

/* ---------- Categorías (detalle de prueba) ---------- */
.categorias-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 12px;
}

.categoria-tile {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px;
  background: var(--surface-muted);
}

.categoria-tile strong {
  display: block;
  font-size: 0.88rem;
  margin-bottom: 8px;
}

/* ---------- Details / collapsible ---------- */
.details-toggle summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.details-toggle summary::-webkit-details-marker {
  display: none;
}

.details-toggle summary::after {
  content: '';
  width: 8px;
  height: 8px;
  flex-shrink: 0;
  border-right: 2px solid var(--text-muted);
  border-bottom: 2px solid var(--text-muted);
  transform: rotate(45deg);
  transition: transform var(--transition);
  margin-left: auto;
}

.details-toggle[open] summary::after {
  transform: rotate(-135deg);
}

.details-toggle summary span:first-child {
  font-size: 1.05rem;
  font-weight: 700;
}

.details-toggle summary span.muted {
  font-size: 0.78rem;
  font-weight: 600;
}

/* ---------- Dropzone (subida de archivos) ---------- */
.dropzone {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  border: 1.5px dashed var(--border);
  border-radius: var(--radius-md);
  padding: 22px 14px;
  text-align: center;
  cursor: pointer;
  background: var(--surface-muted);
  transition: border-color var(--transition), background var(--transition);
}

.dropzone:hover,
.dropzone.dragover {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.dropzone.has-file {
  border-style: solid;
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.dropzone input[type='file'] {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  overflow: hidden;
}

.dropzone__icon {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface);
  color: var(--color-primary-dark);
  box-shadow: var(--shadow-sm);
}

.dropzone__icon svg {
  width: 16px;
  height: 16px;
}

.dropzone__text strong {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
}

.dropzone__text span {
  font-size: 0.76rem;
  color: var(--text-muted);
}

.dropzone__filename {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  word-break: break-all;
  margin-top: 2px;
}

/* ---------- Buttons ---------- */
button {
  cursor: pointer;
  border: none;
  border-radius: var(--radius-sm);
  padding: 10px 18px;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  background: var(--color-primary);
  color: #fff;
  margin-top: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition), opacity var(--transition);
}

button:hover {
  background: var(--color-primary-dark);
}

button:active {
  transform: translateY(1px);
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

button svg {
  width: 16px;
  height: 16px;
}

button.secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}

button.secondary:hover {
  background: var(--surface-muted);
}

button.ghost {
  background: transparent;
  color: var(--color-primary);
  margin-top: 0;
  padding: 8px 12px;
}

button.ghost:hover {
  background: var(--color-primary-light);
}

button.danger {
  background: var(--color-danger);
}

button.danger:hover {
  background: #b91c1c;
}

button.small {
  padding: 7px 14px;
  font-size: 0.82rem;
  margin-top: 0;
}

button.block {
  width: 100%;
}

/* ---------- Alerts / feedback ---------- */
.error,
.success {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 0.85rem;
  margin-top: 12px;
  white-space: pre-line;
}

.error:empty,
.success:empty {
  display: none;
}

.error {
  color: var(--color-danger-text);
  background: var(--color-danger-bg);
}

.success {
  color: var(--color-success-text);
  background: var(--color-success-bg);
}

/* ---------- Tables ---------- */
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

table th {
  text-align: left;
  padding: 10px 12px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}

table td {
  text-align: left;
  padding: 13px 12px;
  border-bottom: 1px solid var(--border);
}

table tbody tr {
  transition: background var(--transition);
}

table tbody tr:hover {
  background: var(--surface-muted);
}

table tbody tr:last-child td {
  border-bottom: none;
}

/* ---------- Badges ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 11px;
  border-radius: var(--radius-pill);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: capitalize;
  white-space: nowrap;
}

.badge svg {
  width: 12px;
  height: 12px;
}

.badge.borrador {
  background: var(--color-warning-bg);
  color: var(--color-warning-text);
}

.badge.publicada,
.badge.completado {
  background: var(--color-success-bg);
  color: var(--color-success-text);
}

.badge.archivada {
  background: var(--color-neutral-bg);
  color: var(--color-neutral-text);
}

.badge.no-superada {
  background: var(--color-danger-bg);
  color: var(--color-danger-text);
}

.badge.info {
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
}

/* ---------- Empty states ---------- */
.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-muted);
}

.empty-state svg {
  width: 40px;
  height: 40px;
  color: var(--text-faint);
  margin-bottom: 10px;
}

.empty-state p {
  margin: 0;
  font-size: 0.88rem;
}

/* ---------- Test cards (estudiante dashboard) ---------- */
.test-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

.test-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: box-shadow var(--transition), transform var(--transition);
}

.test-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

a.test-card {
  text-decoration: none;
  color: inherit;
}

a.test-card:hover h3 {
  color: var(--color-primary);
}

.recent-list {
  display: flex;
  flex-direction: column;
}

.recent-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}

.recent-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.recent-item:first-child {
  padding-top: 0;
}

.recent-item__title {
  font-weight: 600;
  font-size: 0.92rem;
}

.recent-item__meta {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.test-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.test-card__icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface-muted);
  color: var(--text-muted);
  flex-shrink: 0;
}

.test-card__icon svg {
  width: 18px;
  height: 18px;
}

.test-card h3 {
  font-size: 1rem;
}

.test-card__meta {
  display: flex;
  gap: 14px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.test-card__meta span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.test-card__meta svg {
  width: 14px;
  height: 14px;
}

/* ---------- Progress bar ---------- */
.progress-track {
  width: 100%;
  height: 8px;
  border-radius: var(--radius-pill);
  background: var(--surface-muted);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: var(--radius-pill);
  transition: width 250ms ease;
}

/* ---------- Question blocks ---------- */
.pregunta-block {
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}

.pregunta-block:last-child {
  border-bottom: none;
}

.pregunta-block strong {
  display: block;
  margin-bottom: 12px;
  font-size: 0.95rem;
}

.opciones-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.opciones-list .option-btn {
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  margin-top: 0;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  text-align: left;
  justify-content: flex-start;
}

.opciones-list .option-btn:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.opciones-list .option-btn.selected {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
}

/* ---------- Quiz (una pregunta a la vez) ---------- */
.quiz-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 20px;
}

.quiz-meta__counter {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
}

.quiz-question {
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 28px;
  animation: quiz-fade-in 220ms ease;
}

@keyframes quiz-fade-in {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.scale-options {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  animation: quiz-fade-in 220ms ease;
}

.scale-btn {
  flex: 1;
  min-width: 100px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 16px 10px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  color: var(--text);
  font-weight: 600;
  margin-top: 0;
}

.scale-btn:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.scale-btn__num {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface-muted);
  border: 1.5px solid var(--border);
  font-size: 0.95rem;
  font-weight: 800;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.scale-btn__label {
  font-size: 0.74rem;
  font-weight: 500;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.3;
}

.scale-btn.selected {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.scale-btn.selected .scale-btn__num {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.tf-options {
  display: flex;
  gap: 14px;
  animation: quiz-fade-in 220ms ease;
}

.tf-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 28px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  color: var(--text);
  font-weight: 700;
  font-size: 0.95rem;
  margin-top: 0;
}

.tf-btn svg {
  width: 28px;
  height: 28px;
}

.tf-btn:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.tf-btn--true.selected {
  border-color: var(--color-success);
  background: var(--color-success-bg);
  color: var(--color-success-text);
}

.tf-btn--false.selected {
  border-color: var(--color-danger);
  background: var(--color-danger-bg);
  color: var(--color-danger-text);
}

/* ---------- Detalle de estudiante (evaluador) ---------- */
.datos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 14px 20px;
  margin: 18px 0 0;
}

.datos-grid dt {
  font-size: 0.75rem;
  color: var(--text-muted, var(--text));
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.datos-grid dd {
  margin: 2px 0 0;
  font-weight: 600;
  word-break: break-word;
}

.intento-bloque {
  padding: 16px 0;
  border-top: 1px solid var(--border);
}

.intento-bloque:first-child {
  border-top: 0;
  padding-top: 4px;
}

.intento-bloque table {
  margin-top: 12px;
}

/* ---------- Registro: aviso de privacidad y anti-bots ---------- */
.aviso-privacidad {
  margin-top: 18px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  font-size: 0.85rem;
}

.aviso-privacidad summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--color-primary);
}

.aviso-privacidad p {
  margin: 8px 0 0;
  color: var(--text-muted, var(--text));
}

.consentimiento {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 12px 0 0;
  font-weight: 500;
  cursor: pointer;
}

.consentimiento input {
  width: auto;
  margin-top: 3px;
  flex-shrink: 0;
}

.campo-trampa {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* ---------- Test de la Rejilla ---------- */
.rejilla-grid {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  gap: 4px;
  max-width: 560px;
  margin: 14px auto 0;
}

.rejilla-cell {
  aspect-ratio: 1;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1.5px solid transparent;
  border-radius: 50%;
  background: var(--surface);
  color: var(--text);
  font-size: clamp(0.72rem, 2.6vw, 1rem);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  touch-action: manipulation;
  user-select: none;
}

.rejilla-cell:hover:not(.hecha) {
  background: var(--color-primary-light);
}

.rejilla-cell.hecha {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.rejilla-cell.error {
  border-color: var(--color-danger);
  background: var(--color-danger-bg);
  color: var(--color-danger-text);
}

.quiz-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.quiz-nav button {
  margin-top: 0;
}

.quiz-dots {
  display: flex;
  gap: 5px;
  flex-wrap: wrap;
  justify-content: center;
  max-width: 240px;
}

.quiz-dot {
  width: 7px;
  height: 7px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: var(--border);
  transition: background var(--transition), transform var(--transition);
}

.quiz-dot.answered {
  background: var(--color-primary);
}

.quiz-dot.current {
  transform: scale(1.6);
}

@media (max-width: 640px) {
  .quiz-dots {
    display: none;
  }
}

/* ---------- Celebración de resultados ---------- */
.resultado-celebracion {
  position: relative;
  text-align: center;
  padding: 8px 8px 28px;
  overflow: hidden;
}

.resultado-celebracion__confetti {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.confetti-piece {
  position: absolute;
  top: -12px;
  width: 8px;
  height: 14px;
  border-radius: 2px;
  opacity: 0.9;
  animation-name: confetti-fall;
  animation-timing-function: cubic-bezier(0.4, 0.1, 0.6, 0.9);
  animation-fill-mode: forwards;
}

@keyframes confetti-fall {
  to {
    transform: translateY(220px) rotate(var(--rot, 360deg));
    opacity: 0;
  }
}

.resultado-celebracion__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 14px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  animation: resultado-pop 480ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

.resultado-celebracion__icon svg {
  width: 30px;
  height: 30px;
}

.resultado-celebracion h2 {
  font-size: 1.25rem;
  margin-bottom: 4px;
}

.resultado-celebracion p {
  margin: 0;
}

@keyframes resultado-pop {
  0% { transform: scale(0.4); opacity: 0; }
  60% { transform: scale(1.12); opacity: 1; }
  100% { transform: scale(1); opacity: 1; }
}

.opciones-preview {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.opciones-preview li {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  background: var(--surface-muted);
  border: 1px solid var(--border);
  font-size: 0.82rem;
}

.opciones-preview li .peso {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  background: var(--color-primary-light);
  padding: 1px 7px;
  border-radius: var(--radius-pill);
}

/* ---------- Misc ---------- */
a.link {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
}

a.link:hover {
  text-decoration: underline;
}

.flex-between {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.muted {
  color: var(--text-muted);
  font-size: 0.85rem;
}

hr.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 22px 0;
}

/* ---------- Login page ---------- */
.login-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: linear-gradient(160deg, var(--color-primary) 0%, #030f38 60%);
}

.login-card {
  width: 100%;
  max-width: 380px;
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: var(--shadow-lg);
}

.login-card .brand-mark {
  height: 108px;
  margin-bottom: 12px;
  justify-content: center;
}

.login-card h1 {
  font-size: 1.3rem;
  margin-bottom: 4px;
}

.login-card p.muted {
  margin: 0 0 22px;
}

.password-field {
  position: relative;
}

.password-field input {
  padding-right: 42px;
}

.password-toggle {
  position: absolute;
  right: 6px;
  top: 6px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  margin: 0;
  padding: 6px;
  width: 30px;
  height: 30px;
}

.password-toggle:hover {
  background: var(--surface-muted);
  color: var(--text);
}

.login-footer {
  margin-top: 22px;
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-faint);
}

/* ---------- Loading ---------- */
.spinner {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-top-color: #fff;
  animation: spin 0.7s linear infinite;
}

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

.skeleton-row td {
  color: transparent;
}

.skeleton-bar {
  height: 12px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--surface-muted) 25%, var(--border) 50%, var(--surface-muted) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
}

@keyframes shimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
  .app-header {
    padding: 12px 16px;
  }

  .app-header__titles span {
    display: none;
  }

  .user-meta {
    display: none;
  }

  .container {
    padding: 20px 14px 48px;
  }

  .card {
    padding: 18px;
  }
}