/**
 * AI LMS — custom styles (Tailwind handles most layout).
 */

.sidebar-link {
  display: block;
  border-radius: 0.75rem;
  padding: 0.625rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: #475569;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.sidebar-link:hover {
  background-color: #f1f5f9;
  color: #0f172a;
}

.sidebar-link:focus-visible {
  outline: 2px solid #2563eb;
  outline-offset: 2px;
}

.sidebar-link-active {
  background-color: #eff6ff;
  color: #1d4ed8;
}

[x-cloak] {
  display: none !important;
}

/* Forms */
.form-label {
  display: block;
  margin-bottom: 0.375rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: #334155;
}

.form-input {
  display: block;
  width: 100%;
  border-radius: 0.75rem;
  border: 1px solid #cbd5e1;
  padding: 0.625rem 0.75rem;
  font-size: 0.875rem;
  line-height: 1.25rem;
  color: #0f172a;
  background-color: #fff;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-input:focus {
  outline: none;
  border-color: #2563eb;
  box-shadow: 0 0 0 3px rgb(37 99 235 / 0.15);
}

textarea.form-input,
select.form-input {
  resize: vertical;
  min-height: 2.75rem;
}

textarea.form-input {
  min-height: 5rem;
}

.form-input-error {
  border-color: #f87171;
}

.form-input-error:focus {
  border-color: #ef4444;
  box-shadow: 0 0 0 3px rgb(239 68 68 / 0.15);
}

.form-error {
  margin-top: 0.375rem;
  font-size: 0.75rem;
  color: #dc2626;
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.75rem;
  background-color: #2563eb;
  padding: 0.625rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: #fff;
  transition: background-color 0.15s ease;
}

.btn-primary:hover:not(:disabled) {
  background-color: #1d4ed8;
}

.btn-primary:focus-visible {
  outline: 2px solid #2563eb;
  outline-offset: 2px;
}

.btn-primary:disabled {
  cursor: not-allowed;
  opacity: 0.65;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.75rem;
  border: 1px solid #cbd5e1;
  background-color: #fff;
  padding: 0.625rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: #334155;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.btn-secondary:hover:not(:disabled) {
  background-color: #f8fafc;
  border-color: #94a3b8;
}

.btn-secondary:disabled {
  cursor: not-allowed;
  opacity: 0.65;
}

.btn-danger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.75rem;
  background-color: #dc2626;
  padding: 0.5rem 0.875rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: #fff;
  transition: background-color 0.15s ease;
}

.btn-danger:hover:not(:disabled) {
  background-color: #b91c1c;
}

.btn-danger:disabled {
  cursor: not-allowed;
  opacity: 0.65;
}

/* Dashboard */
.dashboard-action-card {
  display: block;
  border-radius: 1rem;
  border: 1px solid #e2e8f0;
  background-color: #fff;
  padding: 1.25rem;
  box-shadow: 0 1px 2px rgb(15 23 42 / 0.05);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.dashboard-action-card:hover {
  border-color: #bfdbfe;
  box-shadow: 0 4px 12px rgb(37 99 235 / 0.08);
}

.dashboard-action-card:focus-visible {
  outline: 2px solid #2563eb;
  outline-offset: 2px;
}

.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Lesson content */
.lesson-content-body {
  font-size: 0.9375rem;
  line-height: 1.65;
  color: #334155;
}

.lesson-content-body h2,
.lesson-content-body h3 {
  margin-top: 1rem;
  font-weight: 600;
  color: #0f172a;
}

.lesson-content-body p {
  margin-top: 0.75rem;
}

.lesson-content-body ul,
.lesson-content-body ol {
  margin-top: 0.75rem;
  padding-left: 1.25rem;
}

.lesson-content-body a {
  color: #2563eb;
  text-decoration: underline;
}

/* Accessibility */
.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
  z-index: 100;
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  background: #1d4ed8;
  color: #fff;
  font-size: 0.875rem;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

/* Layout */
.main-content {
  min-height: calc(100vh - 4rem);
}

.page-container {
  width: 100%;
}

.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* Alerts */
.alert {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  border-radius: 0.75rem;
  border: 1px solid;
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
}

.alert-text {
  flex: 1;
}

.alert-close {
  border-radius: 0.375rem;
  padding: 0 0.375rem;
  line-height: 1.25rem;
}

.alert-close:hover {
  background: rgb(15 23 42 / 0.05);
}

.alert-info {
  border-color: #bae6fd;
  background: #f0f9ff;
  color: #0c4a6e;
}

.alert-success {
  border-color: #a7f3d0;
  background: #ecfdf5;
  color: #065f46;
}

.alert-warning {
  border-color: #fde68a;
  background: #fffbeb;
  color: #92400e;
}

.alert-error {
  border-color: #fecaca;
  background: #fef2f2;
  color: #991b1b;
}

/* Pagination */
.pagination {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 1rem;
}

.pagination-info {
  font-size: 0.875rem;
  color: #64748b;
}

.pagination-btn {
  border-radius: 0.75rem;
  border: 1px solid #cbd5e1;
  padding: 0.5rem 0.875rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: #334155;
  background: #fff;
}

.pagination-btn:hover:not(.pagination-btn-disabled) {
  border-color: #94a3b8;
  background: #f8fafc;
}

.pagination-btn-disabled {
  pointer-events: none;
  opacity: 0.5;
}

/* Toast */
.toast-root {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 60;
  display: flex;
  max-width: min(24rem, calc(100vw - 2rem));
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  border-radius: 0.75rem;
  border: 1px solid;
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  box-shadow: 0 10px 25px rgb(15 23 42 / 0.12);
  opacity: 0;
  transform: translateY(0.5rem);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.toast-enter {
  opacity: 1;
  transform: translateY(0);
}

.toast-leave {
  opacity: 0;
}

.toast-text {
  flex: 1;
}

.toast-close {
  border-radius: 0.375rem;
  padding: 0 0.25rem;
  line-height: 1.25rem;
}

.toast-info {
  border-color: #bae6fd;
  background: #f0f9ff;
  color: #0c4a6e;
}

.toast-success {
  border-color: #a7f3d0;
  background: #ecfdf5;
  color: #065f46;
}

.toast-warning {
  border-color: #fde68a;
  background: #fffbeb;
  color: #92400e;
}

.toast-error {
  border-color: #fecaca;
  background: #fef2f2;
  color: #991b1b;
}

/* Responsive */
@media (max-width: 639px) {
  .btn-primary,
  .btn-secondary,
  .btn-danger {
    min-height: 2.75rem;
  }

  .dashboard-action-card {
    padding: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .toast,
  .sidebar-link,
  .dashboard-action-card {
    transition: none;
  }
}