/**
 * Subject Materials Pane Styles
 *
 * Styles for inline content-area rendering (not modal).
 * Follows existing patterns from mainstyles.css and subjects.css.
 * Uses CSS custom properties for consistency with theme.
 */

/* ============================================
   SUBJECT MATERIALS VIEW (Content Area Container)
   ============================================ */
.subject-materials-view {
  padding: var(--spacing-lg, 2rem);
  max-width: 900px;
  margin: 0 auto;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================
   SUBJECT MATERIALS PANE (Orchestrator)
   ============================================ */
.subject-materials-pane {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg, 1.5rem);
}

.subject-materials-pane__header {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md, 1rem);
  margin-bottom: var(--spacing-lg, 1.5rem);
  padding-bottom: var(--spacing-lg, 1.5rem);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* Title row - contains title and syllabus badge */
.subject-materials-pane__title-row {
  display: flex;
  align-items: center;
  gap: var(--spacing-md, 1rem);
  flex-wrap: wrap;
}

.subject-materials-pane__title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-light, #f9fafb);
  margin: 0;
}

/* Syllabus code badge */
.subject-materials-pane__syllabus-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.75rem;
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-muted, #9ca3af);
  border-radius: var(--radius-sm, 6px);
  font-size: 0.8rem;
  font-weight: 500;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Description text */
.subject-materials-pane__description {
  font-size: 0.95rem;
  color: var(--text-muted, #9ca3af);
  line-height: 1.6;
  margin: 0;
  max-width: 700px;
}

/* Features section */
.subject-materials-pane__features {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm, 0.5rem);
}

.subject-materials-pane__features-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-light, #f9fafb);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.subject-materials-pane__feature-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs, 0.5rem);
}

.subject-materials-pane__feature-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.75rem;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-light, #e5e7eb);
  border-radius: var(--radius-sm, 6px);
  font-size: 0.8rem;
  font-weight: 500;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.subject-materials-pane__feature-chip i {
  font-size: 0.75rem;
  color: var(--primary-color, #e81123);
}

/* Topic indicator - shown when viewing materials for a specific topic */
.subject-materials-pane__topic-indicator {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.85rem;
  background: rgba(232, 17, 35, 0.1);
  color: var(--text-light, #e5e7eb);
  border-radius: var(--radius-sm, 8px);
  font-size: 0.85rem;
  border: 1px solid rgba(232, 17, 35, 0.3);
  width: fit-content;
}

.subject-materials-pane__topic-indicator i {
  color: var(--primary-color, #e81123);
}

.subject-materials-pane__topic-indicator strong {
  color: var(--primary-color, #e81123);
}

/* Legacy topic badge - kept for backward compatibility */
.subject-materials-pane__topic-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.75rem;
  background: var(--primary-color, #e81123);
  color: white;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 500;
  width: fit-content;
}

.subject-materials-pane__topic-badge i {
  font-size: 0.75rem;
}

.subject-materials-pane__sections {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md, 1rem);
}

/* ============================================
   SECTION WRAPPER (Shared Layout)
   ============================================ */
.section-wrapper {
  background: var(--background-alt, rgba(255, 255, 255, 0.05));
  border-radius: var(--radius-md, 12px);
  padding: var(--spacing-lg, 1.5rem);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: all 0.2s ease;
}

.section-wrapper:hover {
  border-color: rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.07);
}

.section-wrapper__header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm, 0.5rem);
  margin-bottom: var(--spacing-md, 1rem);
}

.section-wrapper__icon {
  font-size: 1.25rem;
  color: var(--primary-color, #e81123);
  width: 1.5rem;
  text-align: center;
}

.section-wrapper__title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-light, #f9fafb);
  margin: 0;
}

.section-wrapper__content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm, 0.5rem);
}

/* ============================================
   SECTION BUTTONS
   ============================================ */
.section-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs, 0.5rem);
  padding: var(--spacing-sm, 0.75rem) var(--spacing-md, 1rem);
  border-radius: var(--radius-sm, 8px);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
  width: 100%;
  text-align: center;
}

.section-btn--primary {
  background: var(--primary-color, #e81123);
  color: white;
}

.section-btn--primary:hover {
  background: var(--primary-hover, #c70f1f);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(232, 17, 35, 0.4);
}

.section-btn--secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-light, #e5e7eb);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.section-btn--secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

/* Button icons - ensure proper spacing */
.section-btn i {
  font-size: 0.9rem;
}

/* ============================================
   COMING SOON PLACEHOLDER
   ============================================ */
.coming-soon {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm, 0.5rem);
  padding: var(--spacing-sm, 0.75rem) var(--spacing-md, 1rem);
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-sm, 8px);
  border: 1px dashed rgba(255, 255, 255, 0.15);
}

.coming-soon__icon {
  font-size: 0.9rem;
  color: var(--text-muted, #9ca3af);
}

.coming-soon__message {
  font-size: 0.85rem;
  color: var(--text-muted, #9ca3af);
  margin: 0;
  font-style: italic;
}

/* ============================================
   MOBILE RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
  .subject-materials-view {
    padding: var(--spacing-md, 1rem);
  }

  .subject-materials-pane__sections {
    grid-template-columns: 1fr;
  }

  .subject-materials-pane__title-row {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm, 0.5rem);
  }

  .subject-materials-pane__title {
    font-size: 1.35rem;
  }

  .subject-materials-pane__description {
    font-size: 0.9rem;
  }

  .subject-materials-pane__feature-chips {
    gap: 0.35rem;
  }

  .subject-materials-pane__feature-chip {
    font-size: 0.75rem;
    padding: 0.35rem 0.6rem;
  }

  .subject-materials-pane__topic-badge {
    font-size: 0.75rem;
  }

  .section-wrapper {
    padding: var(--spacing-md, 1rem);
  }
}

/* ============================================
   LIGHT MODE SUPPORT (if theme toggles to light)
   ============================================ */
[data-theme="light"] .subject-materials-pane__header {
  border-bottom-color: rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .subject-materials-pane__title {
  color: var(--text-dark, #1f2937);
}

[data-theme="light"] .subject-materials-pane__syllabus-badge {
  background: rgba(0, 0, 0, 0.05);
  color: var(--text-muted, #6b7280);
  border-color: rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .subject-materials-pane__description {
  color: var(--text-muted, #6b7280);
}

[data-theme="light"] .subject-materials-pane__features-label {
  color: var(--text-dark, #1f2937);
}

[data-theme="light"] .subject-materials-pane__feature-chip {
  background: rgba(0, 0, 0, 0.03);
  color: var(--text-dark, #374151);
  border-color: rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .subject-materials-pane__topic-indicator {
  background: rgba(232, 17, 35, 0.08);
  color: var(--text-dark, #374151);
  border-color: rgba(232, 17, 35, 0.2);
}

[data-theme="light"] .section-wrapper {
  background: var(--background-alt, #f9fafb);
  border-color: rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .section-wrapper:hover {
  border-color: rgba(0, 0, 0, 0.15);
  background: #ffffff;
}

[data-theme="light"] .section-wrapper__title {
  color: var(--text-dark, #1f2937);
}

[data-theme="light"] .section-btn--secondary {
  background: rgba(0, 0, 0, 0.05);
  color: var(--text-dark, #1f2937);
  border-color: rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .section-btn--secondary:hover {
  background: rgba(0, 0, 0, 0.1);
  border-color: rgba(0, 0, 0, 0.2);
}

[data-theme="light"] .coming-soon {
  background: rgba(0, 0, 0, 0.03);
  border-color: rgba(0, 0, 0, 0.15);
}

[data-theme="light"] .coming-soon__message {
  color: var(--text-muted, #6b7280);
}
/* ============================================
   SYLLABUS DROPDOWN (Multiple Files)
   ============================================ */
.syllabus-dropdown-container {
  position: relative;
  display: inline-block;
}

.syllabus-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  margin-top: 0.5rem;
  background: var(--background-alt, #0f172a);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md, 8px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  z-index: 10;
  min-width: 280px;
  overflow: hidden;
}

.syllabus-dropdown-item {
  display: flex;
  align-items: center;
  padding: var(--spacing-sm, 0.75rem) var(--spacing-md, 1rem);
  color: var(--text-light, #f9fafb);
  text-decoration: none;
  font-size: 0.95rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: all 0.2s ease;
}

.syllabus-dropdown-item:last-child {
  border-bottom: none;
}

.syllabus-dropdown-item:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--primary-color, #3b82f6);
  padding-left: calc(var(--spacing-md, 1rem) + 0.25rem);
}

.syllabus-dropdown-item i {
  margin-right: 0.5rem;
  font-size: 0.85rem;
  opacity: 0.7;
}

/* Light theme dropdown */
[data-theme="light"] .syllabus-dropdown-menu {
  background: #ffffff;
  border-color: rgba(0, 0, 0, 0.1);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .syllabus-dropdown-item {
  color: var(--text-dark, #1f2937);
  border-bottom-color: rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .syllabus-dropdown-item:hover {
  background: rgba(0, 0, 0, 0.05);
}