/* ─── Admin UX: Trilhas + Cursos (Sprint 4) ─────────────────── */

.admin-page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-xl);
}

/* ── Trail Card Grid ── */
.admin-trail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--space-lg);
}
.admin-trail-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-md);
  border-top: 4px solid var(--trail-color, var(--primary));
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  text-align: center;
}
.admin-trail-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.admin-trail-card-icon {
  width: 56px; height: 56px;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto var(--space-sm);
  background: rgba(0,142,168,0.08);
  border-radius: 50%;
}
.admin-trail-card-icon .icon { width: 28px; height: 28px; }
.admin-trail-card-name { font-family: var(--font-display); font-size: var(--text-lg); margin-bottom: var(--space-sm); }
.admin-trail-card-stats {
  display: flex; justify-content: center; gap: var(--space-md);
  font-size: var(--text-sm); color: var(--gray); margin-bottom: var(--space-md);
}
.admin-trail-card-stats .icon { width: 14px; height: 14px; margin-right: 3px; }

/* ── Trail Editor ── */
.trail-editor {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-xl);
}
.trail-editor-preview {
  background: var(--gray-lighter, #f8f9fa);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  position: sticky;
  top: 80px;
  max-height: calc(100vh - 120px);
  overflow-y: auto;
}
.trail-editor-actions {
  display: flex; justify-content: flex-end; gap: var(--space-sm);
  margin-top: var(--space-xl); padding-top: var(--space-md);
  border-top: 1px solid var(--gray-light, #e0e0e0);
}
.add-course-row { display: flex; gap: 8px; margin-top: var(--space-md); }
.add-course-row select { flex: 1; }

/* ── Sortable Lists ── */
.sortable-course-list {
  list-style: none; padding: 0; margin: var(--space-md) 0;
  display: flex; flex-direction: column; gap: 8px;
}
.sortable-course-item {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 16px;
  background: var(--white);
  border: 1px solid var(--gray-light, #e0e0e0);
  border-radius: var(--radius-md);
  transition: box-shadow 0.15s;
}
.sortable-course-item:hover { box-shadow: var(--shadow-sm); }
.sortable-course-item.sortable-ghost { opacity: 0.4; }
.drag-handle { cursor: grab; color: var(--gray); flex-shrink: 0; touch-action: none; }
.drag-handle:active { cursor: grabbing; }
.drag-handle .icon { width: 18px; height: 18px; }
.course-order-num {
  width: 24px; height: 24px; border-radius: 50%;
  background: var(--primary); color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-size: var(--text-xs); font-weight: 700; flex-shrink: 0;
}
.course-name-item { flex: 1; font-weight: 600; }
.btn-icon-only {
  background: none; border: none; cursor: pointer; padding: 4px;
  color: var(--gray); border-radius: var(--radius-sm);
  transition: color 0.15s, background 0.15s;
}
.btn-icon-only:hover { color: var(--danger, #e74c3c); background: rgba(231,76,60,0.08); }
.btn-icon-only .icon { width: 18px; height: 18px; }

/* ── Admin Course Card List ── */
.admin-course-list { display: flex; flex-direction: column; gap: var(--space-md); }
.admin-course-card {
  display: flex; align-items: center; gap: var(--space-lg);
  background: var(--white); border-radius: var(--radius-lg);
  padding: var(--space-lg); box-shadow: var(--shadow-md);
  cursor: pointer; transition: box-shadow 0.2s, transform 0.2s;
}
.admin-course-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.admin-course-card-icon {
  width: 56px; height: 56px; border-radius: var(--radius-md);
  background: var(--primary);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.admin-course-card-icon .icon { width: 28px; height: 28px; }
.admin-course-card-info { flex: 1; min-width: 0; }
.admin-course-card-name {
  font-family: var(--font-display); font-size: var(--text-lg);
  margin: 0 0 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.admin-course-card-meta { font-size: var(--text-sm); color: var(--gray); margin: 0 0 8px; }
.admin-course-card-flags { display: flex; gap: 8px; flex-wrap: wrap; }
.flag-badge {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: var(--text-xs); font-weight: 600;
  background: rgba(0,142,168,0.08); color: var(--primary);
  padding: 3px 10px; border-radius: 99px;
}
.flag-badge .icon { width: 12px; height: 12px; }

/* ── Course Editor / Lesson Accordion ── */
.course-editor-header {
  background: var(--white); border-radius: var(--radius-lg);
  padding: var(--space-lg); box-shadow: var(--shadow-sm); margin-bottom: var(--space-lg);
}
.input-title {
  font-family: var(--font-display); font-size: 1.6rem; font-weight: 700;
  border: none; border-bottom: 2px solid transparent;
  width: 100%; padding: 4px 0; margin-bottom: var(--space-sm);
  background: transparent; transition: border-color 0.2s;
}
.input-title:focus { border-bottom-color: var(--primary); outline: none; }

.lesson-accordion { display: flex; flex-direction: column; gap: 8px; margin: var(--space-md) 0; }
.lesson-accordion-item {
  background: var(--white); border: 1px solid var(--gray-light, #e0e0e0);
  border-radius: var(--radius-md); overflow: hidden; transition: box-shadow 0.15s;
}
.lesson-accordion-item:hover { box-shadow: var(--shadow-sm); }
.lesson-accordion-header {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 16px; cursor: pointer; user-select: none; transition: background 0.15s;
}
.lesson-accordion-header:hover { background: var(--gray-lighter, #f8f9fa); }
.lesson-order-num {
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--primary); color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-size: var(--text-sm); font-weight: 700; flex-shrink: 0;
}
.lesson-title-label { flex: 1; font-weight: 600; }
.lesson-flags { display: flex; gap: 6px; }
.lesson-flags .icon { width: 16px; height: 16px; color: var(--primary); }
.accordion-chevron { transition: transform 0.2s; color: var(--gray); }
.accordion-chevron .icon { width: 18px; height: 18px; }
.lesson-accordion-item.expanded .accordion-chevron { transform: rotate(180deg); }
.lesson-accordion-body {
  padding: var(--space-lg); border-top: 1px solid var(--gray-light, #e0e0e0);
  background: var(--gray-lighter, #f8f9fa);
  display: flex; flex-direction: column; gap: var(--space-md);
}
.material-list-edit { display: flex; flex-direction: column; gap: 6px; margin-bottom: 8px; }
.material-edit-item {
  display: flex; justify-content: space-between; align-items: center;
  padding: 8px 12px; background: var(--white); border-radius: var(--radius-sm);
  border: 1px solid var(--gray-light, #e0e0e0);
}
.material-source-toggle {
  display: flex; gap: var(--space-lg); margin: 8px 0; font-size: var(--text-sm);
}
.material-source-toggle label { display: flex; align-items: center; gap: 6px; cursor: pointer; }
.exercise-options { display: flex; flex-direction: column; gap: 8px; margin-top: 8px; }
.exercise-option { display: flex; align-items: center; gap: 10px; }
.exercise-option input[type="text"] { flex: 1; }
.exercise-option input[type="radio"] { accent-color: var(--primary); }
.lesson-actions {
  display: flex; justify-content: space-between;
  padding-top: var(--space-sm); border-top: 1px solid var(--gray-light, #e0e0e0);
}

/* ── Admin Tutors ── */
.admin-tutors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-md);
}
.admin-tutor-card {
  background: var(--white, #fff);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
.admin-tutor-card-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}
.admin-tutor-avatar {
  width: 42px; height: 42px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 1.1rem;
  flex-shrink: 0;
}
.admin-tutor-stats {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}
.admin-tutor-stat {
  background: var(--gray-light, #f5f5f5);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  font-size: .78rem;
  color: var(--gray-dark, #555);
}
.admin-tutor-stat strong { color: var(--primary); }
.tutor-course-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  min-height: 24px;
}
.tutor-course-chip {
  display: inline-flex; align-items: center; gap: 4px;
  background: var(--primary-light, #e6f4f7);
  color: var(--primary-dark, #006b85);
  border-radius: var(--radius-sm);
  padding: 2px 8px;
  font-size: .75rem;
  font-weight: 500;
}
.tutor-course-chip button {
  background: none; border: none; cursor: pointer;
  color: var(--primary-dark, #006b85);
  padding: 0; line-height: 1; font-size: .9rem;
}
.tutor-assign-row {
  display: flex; gap: 6px; margin-top: 4px;
}
.tutor-assign-row select { flex: 1; font-size: .82rem; }

/* ── Unassigned Questions Queue ── */
.questions-queue {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}
.question-queue-item {
  background: var(--white, #fff);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--warning, #e9c46a);
  box-shadow: var(--shadow-sm);
  padding: var(--space-sm) var(--space-md);
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  flex-wrap: wrap;
}
.question-queue-meta {
  flex: 1;
  min-width: 200px;
}
.question-queue-meta .q-course { font-size: .72rem; color: var(--muted, #888); margin-bottom: 2px; }
.question-queue-meta .q-text { font-size: .85rem; color: var(--text, #222); }
.question-queue-meta .q-author { font-size: .72rem; color: var(--muted, #888); margin-top: 2px; }
.question-assign-select { font-size: .8rem; padding: 4px 8px; border-radius: var(--radius-sm); border: 1px solid #ddd; }

/* ── Admin Users Table ── */
.admin-users-toolbar {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-md);
}
.admin-users-search-wrap {
  position: relative;
  flex: 1;
  min-width: 200px;
}
.admin-users-search-wrap .icon { position: absolute; left: 10px; top: 50%; transform: translateY(-50%); opacity: .5; pointer-events: none; }
.admin-users-search { padding-left: 36px; width: 100%; }
.admin-users-filter { font-size: .85rem; padding: 8px 12px; border: 1px solid #ddd; border-radius: var(--radius-md); background: #fff; }
.admin-bulk-bar {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  background: var(--primary-light, #e6f4f7);
  border-radius: var(--radius-md);
  padding: 8px 14px;
  margin-bottom: var(--space-sm);
  font-size: .85rem;
}
.admin-bulk-bar.hidden { display: none; }
.admin-users-table-wrap { overflow-x: auto; }
.admin-users-tbl { width: 100%; border-collapse: collapse; font-size: var(--table-font, .85rem); }
.admin-users-tbl th { text-align: left; padding: var(--table-pad-y, 8px) var(--table-pad-x, 12px); border-bottom: 2px solid var(--border, #eee); color: var(--text-secondary, #888); font-weight: 600; white-space: nowrap; }
.admin-users-tbl td { padding: var(--table-pad-y, 8px) var(--table-pad-x, 12px); border-bottom: 1px solid var(--border, #f0f0f0); vertical-align: middle; }
.admin-users-tbl tr:hover td { background: var(--bg-hover, #fafbfc); }
.admin-users-tbl input[type="checkbox"] { accent-color: var(--primary); }
.user-name-cell { display: flex; align-items: center; gap: 8px; }
.user-avatar-sm {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--primary); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: .78rem; font-weight: 700; flex-shrink: 0;
}
.btn-link { background: none; border: none; color: var(--primary); cursor: pointer; font-size: .82rem; text-decoration: underline; padding: 0; }

/* ── User Profile Panel ── */
.user-profile-panel {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: 420px;
  max-width: 95vw;
  background: #fff;
  box-shadow: -4px 0 24px rgba(0,0,0,.15);
  z-index: 200;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform .3s ease;
}
.user-profile-panel.open { transform: translateX(0); }
.user-profile-panel-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  border-bottom: 1px solid #eee;
  position: sticky; top: 0; background: #fff; z-index: 1;
}
.user-profile-panel-body { padding: var(--space-md); flex: 1; display: flex; flex-direction: column; gap: var(--space-md); }
.profile-stat-row { display: flex; gap: var(--space-sm); flex-wrap: wrap; }
.profile-stat {
  flex: 1; min-width: 80px;
  background: var(--gray-light, #f5f5f5);
  border-radius: var(--radius-md);
  padding: var(--space-sm);
  text-align: center;
}
.profile-stat .stat-val { font-size: 1.4rem; font-weight: 700; color: var(--primary); }
.profile-stat .stat-lbl { font-size: .72rem; color: var(--muted, #888); }
.profile-section-title { font-size: .82rem; font-weight: 600; color: var(--muted, #888); text-transform: uppercase; letter-spacing: .05em; margin-bottom: 6px; }
.profile-trail-item {
  background: #f9fbfc;
  border-radius: var(--radius-md);
  padding: 10px 12px;
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 6px;
}
.profile-cert-item {
  background: #fffbf0;
  border-radius: var(--radius-md);
  padding: 8px 12px;
  font-size: .82rem;
  margin-bottom: 6px;
  display: flex; align-items: center; gap: 8px;
}
.profile-actions { display: flex; flex-direction: column; gap: 8px; }

/* ── Responsive ── */
@media (max-width: 900px) {
  .trail-editor { grid-template-columns: 1fr; }
  .trail-editor-preview { position: static; max-height: none; }
}
@media (max-width: 640px) {
  .admin-course-card { flex-wrap: wrap; }
  .admin-course-card-icon { width: 44px; height: 44px; }
  .admin-page-header { flex-direction: column; align-items: flex-start; gap: var(--space-sm); }
}

/* ── Settings screen ─────────────────────────────────────────────────── */
.settings-section {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--space-md);
  overflow: hidden;
}

.settings-section-header {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: var(--space-md);
  font-weight: 600;
  color: var(--navy);
  background: var(--gray-lighter);
  border-bottom: 1px solid var(--gray-light);
}

.settings-section-body {
  padding: var(--space-md);
}

.form-row {
  display: flex;
  gap: var(--space-md);
}

.form-row .form-group { flex: 1; }

.points-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-md);
}

.point-item label {
  display: block;
  font-size: var(--text-xs);
  color: var(--gray);
  margin-bottom: .3rem;
}

.levels-table {
  width: 100%;
  border-collapse: collapse;
}

.levels-table th {
  text-align: left;
  font-size: var(--text-xs);
  color: var(--gray);
  padding: .5rem;
  border-bottom: 1px solid var(--gray-light);
}

.levels-table td {
  padding: .4rem .5rem;
  border-bottom: 1px solid var(--gray-lighter);
}

.levels-table input[type="color"] {
  width: 40px;
  height: 32px;
  padding: 0;
  border: 1px solid var(--gray-light);
  border-radius: 6px;
}

.btn-icon {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--gray);
  padding: .25rem;
  display: flex;
  align-items: center;
}

.btn-icon:hover { color: #e74c3c; }

.settings-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-md);
  margin-top: var(--space-md);
  padding-top: var(--space-md);
}

.settings-saved {
  color: #27ae60;
  font-size: var(--text-sm);
  font-weight: 600;
}

.settings-preview {
  margin-top: var(--space-md);
}

.preview-label {
  font-size: var(--text-xs);
  color: var(--gray);
  margin-bottom: .3rem;
}

.verse-preview {
  font-style: italic;
  font-size: var(--text-base);
  color: var(--navy);
  background: var(--gray-lighter);
  border-radius: var(--radius-md, 8px);
  padding: var(--space-md);
}

.verse-preview cite {
  display: block;
  margin-top: .4rem;
  font-style: normal;
  font-size: var(--text-sm);
  color: var(--gray);
}

@media (max-width: 768px) {
  .form-row { flex-direction: column; }
  .points-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ── Course status badges & admin actions ───────────────────────────── */
.course-status {
  font-size: var(--text-xs, .72rem);
  padding: .2rem .6rem;
  border-radius: 999px;
  font-weight: 600;
}

.course-status.status-published { background: #e7f7ee; color: #2fa66a; }
.course-status.status-draft { background: #fdf3e0; color: #e0a32a; }
.course-status.status-archived { background: #ececec; color: #888; }

.course-admin-actions {
  border-top: 1px solid var(--gray-lighter);
  margin-top: .6rem;
  padding-top: .6rem;
}

.course-action-buttons {
  display: flex;
  gap: .5rem;
  flex-wrap: wrap;
}

/* ── Sprint 6.3: Editor de Curso e Aula — UX/UI Refactor ─────────────── */

/* ── Editor Card ── */
.editor-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--space-lg);
  overflow: hidden;
}
.editor-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: var(--gray-lighter);
  border-bottom: 1px solid var(--gray-light);
}
.editor-card-body {
  padding: var(--space-lg);
}
.editor-section-title {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: var(--fw-semibold);
  color: var(--dark);
  font-size: var(--text-base);
}
.editor-section-title .icon { color: var(--primary); }

.input-title-lg {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
}

.form-hint {
  display: block;
  font-size: var(--text-xs);
  color: var(--gray);
  margin-top: var(--space-xs);
}

.form-color {
  width: 60px;
  padding: 4px;
  min-height: 44px;
  cursor: pointer;
}

.form-file {
  display: flex;
}

.editor-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-md);
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid var(--gray-light);
}

/* ── Lesson Sections (inside accordion body) ── */
.lesson-section {
  background: var(--white);
  border: 1px solid var(--gray-light);
  border-radius: var(--radius-md);
  padding: var(--space-md);
}
.lesson-section-label {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: var(--fw-semibold);
  font-size: var(--text-sm);
  color: var(--primary);
  margin: 0 0 var(--space-md);
}
.lesson-section-label .icon { color: var(--primary); }

/* ── Exercise Options Grid (2x2) ── */
.exercise-options-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-top: var(--space-sm);
}
.exercise-option-card {
  border: 2px solid var(--gray-light);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
  background: var(--gray-lighter);
  transition: border-color var(--transition-fast), background var(--transition-fast);
}
.exercise-option-card:hover {
  border-color: var(--primary-light);
}
.exercise-option-card.correct {
  border-color: var(--success);
  background: rgba(39,174,96,0.08);
}
.exercise-option-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}
.option-letter {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--white);
  font-size: var(--text-xs);
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.exercise-option-card.correct .option-letter { background: var(--success); }
.exercise-option-header input[type="radio"] { accent-color: var(--success); cursor: pointer; }
.correct-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--success);
  margin-left: auto;
}
.correct-badge .icon { width: 12px; height: 12px; }

/* ── Lesson Actions Bar (footer of accordion body) ── */
.lesson-actions-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-sm);
  border-top: 1px solid var(--gray-light);
}

.btn-danger-outline {
  color: var(--danger);
  border-color: var(--danger);
}
.btn-danger-outline:hover {
  background: rgba(231,76,60,0.08);
  border-color: var(--danger);
}
.btn-danger-subtle {
  background: rgba(231,76,60,0.08);
  color: var(--danger);
  border: none;
}
.btn-danger-subtle:hover { background: rgba(231,76,60,0.16); }

/* ── Material Input Row / Toggle ── */
.material-input-row {
  gap: 8px;
}
.material-info {
  display: flex;
  align-items: center;
  gap: 6px;
}
.toggle-option {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}
.toggle-option .icon { color: var(--gray); }

/* ── Empty States ── */
.empty-state-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  text-align: center;
  padding: var(--space-2xl) var(--space-lg);
  color: var(--gray);
}
.empty-state-card .icon { color: var(--gray-light); }
.empty-state-card p {
  font-weight: 600;
  color: var(--dark);
  margin: 0;
}
.empty-hint {
  font-size: var(--text-xs);
  color: var(--gray);
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0 0 var(--space-sm);
}

/* ── Button Loading / Success States ── */
.btn-spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255,255,255,0.4);
  border-top-color: var(--white);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  vertical-align: middle;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
.btn-loading {
  opacity: 0.85;
  cursor: wait !important;
  pointer-events: none;
}
.btn-success-state {
  background: var(--success) !important;
  border-color: var(--success) !important;
  color: var(--white) !important;
}

/* ── Mobile Responsiveness (Sprint 6.3) ── */
@media (max-width: 640px) {
  .exercise-options-grid { grid-template-columns: 1fr; }
  .editor-card-header { flex-direction: column; align-items: flex-start; gap: var(--space-sm); }
  .editor-actions { flex-direction: column-reverse; }
  .editor-actions .btn { width: 100%; }
  .lesson-actions-bar { flex-direction: column-reverse; gap: var(--space-sm); }
  .lesson-actions-bar .btn { width: 100%; justify-content: center; }
  .material-input-row { flex-direction: column; }
}

/* ── Editor de marca (TEN-03) ── */
.brand-editor { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: var(--space-lg); align-items: start; }
@media (max-width: 900px) { .brand-editor { grid-template-columns: 1fr; } }
.brand-color-row { display: flex; gap: var(--space-sm); align-items: center; }
.brand-color-row input[type="color"] { width: 48px; height: 38px; padding: 2px; border: 1px solid var(--border); border-radius: var(--radius-md); cursor: pointer; }
.brand-color-row input[type="text"] { max-width: 120px; font-family: monospace; }
.brand-preview { position: sticky; top: var(--space-lg); }
.brand-preview-card {
  background: var(--xr-black); border-radius: var(--radius-lg); padding: var(--space-xl) var(--space-lg);
  text-align: center; color: var(--white); display: flex; flex-direction: column; align-items: center; gap: var(--space-sm);
}
.brand-preview-card img { max-width: 140px; max-height: 80px; object-fit: contain; margin-bottom: var(--space-sm); }
.brand-preview-titulo { font-size: 1.15rem; font-weight: 700; line-height: 1.25; }
.brand-preview-sub { font-size: .8rem; color: rgba(255, 255, 255, .7); }
.brand-preview-btn {
  margin-top: var(--space-sm); width: 100%; padding: 8px; border-radius: var(--radius-md);
  background: var(--brand-primary); color: var(--white); font-weight: 600; font-size: .85rem;
}