html {
  font-size: 14px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

html {
  position: relative;
  min-height: 100%;
}

body {
  margin-bottom: 60px;
}

.unit-summary {
display: flex;
align-items: center;
gap: .5rem;
}

.unit-summary .spacer { flex: 1; }

/* ===================================================================
   ContentSequenceItem Layout Styles (v1.14.0)
   =================================================================== */

.content-sequence {
    display: flex;
    gap: 2rem;
    margin: 0 auto;
    max-width: 1400px;
    padding: 1rem 0;
}

/* Split Layout (Side-by-Side) */
.content-sequence.layout-split {
    flex-direction: row;
}

.content-sequence.layout-split .content-sequence__passage {
    flex: 1.1; /* 55% width - slightly wider for reading comfort */
    min-width: 0;
    overflow-y: auto;
    max-height: calc(100vh - 250px); /* Account for header/footer */
    padding-right: 1rem;
}

.content-sequence.layout-split .content-sequence__questions {
    flex: 1; /* 45% width */
    min-width: 0;
    overflow-y: auto;
    max-height: calc(100vh - 250px);
    padding-left: 1rem;
    border-left: 1px solid #dee2e6;
}

/* Vertical Layout (Stacked) */
.content-sequence.layout-vertical {
    flex-direction: column;
}

.content-sequence.layout-vertical .content-sequence__passage {
    width: 100%;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid #dee2e6;
}

.content-sequence.layout-vertical .content-sequence__questions {
    width: 100%;
}

/* Auto Layout (Responsive) */
.content-sequence.layout-auto {
    flex-direction: row;
}

/* Desktop: Split layout (768px and up) */
@media (min-width: 768px) {
    .content-sequence.layout-auto .content-sequence__passage {
        flex: 1.1;
        min-width: 0;
        overflow-y: auto;
        max-height: calc(100vh - 250px);
        padding-right: 1rem;
    }

    .content-sequence.layout-auto .content-sequence__questions {
        flex: 1;
        min-width: 0;
        overflow-y: auto;
        max-height: calc(100vh - 250px);
        padding-left: 1rem;
        border-left: 1px solid #dee2e6;
    }
}

/* Mobile/Tablet: Vertical layout (below 768px) */
@media (max-width: 767px) {
    .content-sequence.layout-auto {
        flex-direction: column;
    }

    .content-sequence.layout-auto .content-sequence__passage {
        width: 100%;
        margin-bottom: 2rem;
        padding-bottom: 2rem;
        border-bottom: 2px solid #dee2e6;
    }

    .content-sequence.layout-auto .content-sequence__questions {
        width: 100%;
        border-left: none;
        padding-left: 0;
    }
}

/* Question Blocks */
.content-sequence__question-block {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background-color: #f8f9fa;
    border-radius: 8px;
    border: 1px solid #dee2e6;
}

.content-sequence__question-block:last-child {
    margin-bottom: 0;
}

/* Exercise Block Styling */
.exercise-block__title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #212529;
}

.exercise-block__instructions {
    margin-bottom: 1.5rem;
}

/* Passage Styling Enhancements */
.content-sequence__passage h1,
.content-sequence__passage h2,
.content-sequence__passage h3 {
    color: #212529;
    margin-top: 1.5rem;
    margin-bottom: 1rem;
}

.content-sequence__passage p {
    line-height: 1.8;
    margin-bottom: 1rem;
}

.content-sequence__passage blockquote {
    border-left: 4px solid #0d6efd;
    padding-left: 1rem;
    margin: 1rem 0;
    font-style: italic;
    color: #6c757d;
}

/* Empty State */
.content-sequence__empty-state {
    text-align: center;
    padding: 3rem;
    color: #adb5bd;
}

/* Print-Friendly Styles */
@media print {
    .content-sequence {
        flex-direction: column;
        max-width: 100%;
        padding: 0;
        gap: 1rem;
    }

    .content-sequence__passage,
    .content-sequence__questions {
        max-height: none;
        overflow: visible;
        border: none;
        padding: 0;
    }

    .content-sequence__question-block {
        page-break-inside: avoid;
        border: 1px solid #000;
    }
}

/* Accessibility: Focus States */
.content-sequence__passage:focus-within,
.content-sequence__questions:focus-within {
    outline: 2px solid #0d6efd;
    outline-offset: 2px;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .content-sequence__question-block {
        border: 2px solid #000;
    }

    .content-sequence.layout-auto .content-sequence__questions,
    .content-sequence.layout-split .content-sequence__questions {
        border-left: 2px solid #000;
    }
}

/* ===================================================================
   Teacher Dashboard - Progress Status Indicators
   =================================================================== */

/* Status color classes for progress bars and badges */
.status-not-started {
    background-color: #dc3545 !important; /* Bootstrap danger red */
    color: white;
}

.status-in-progress {
    background-color: #ffc107 !important; /* Bootstrap warning yellow */
    color: #212529; /* Dark text for better contrast on yellow */
}

.status-completed {
    background-color: #28a745 !important; /* Bootstrap success green */
    color: white;
}

/* Badge styles for status indicators */
.badge.status-not-started,
.badge.status-in-progress,
.badge.status-completed {
    font-weight: 600;
    padding: 0.35em 0.65em;
    font-size: 0.875rem;
}

/* Progress bar specific styles */
.progress-bar.status-not-started,
.progress-bar.status-in-progress,
.progress-bar.status-completed {
    font-weight: 600;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Ensure progress bars have minimum visibility */
.progress {
    background-color: #e9ecef;
    border-radius: 0.25rem;
}

/* High contrast mode support for status indicators */
@media (prefers-contrast: high) {
    .status-not-started {
        border: 2px solid #000;
    }

    .status-in-progress {
        border: 2px solid #000;
    }

    .status-completed {
        border: 2px solid #000;
    }
}

/* Accessibility: Ensure sufficient contrast for color-blind users */
@media (prefers-color-scheme: dark) {
    .status-not-started {
        background-color: #e74c3c !important;
    }

    .status-in-progress {
        background-color: #f39c12 !important;
        color: white;
    }

    .status-completed {
        background-color: #27ae60 !important;
    }
}

/* Feedback sections - layered display */
.feedback-section {
    margin-top: 0.5rem;
    padding: 0.5rem 0.75rem;
    border-left: 3px solid;
    background-color: rgba(0, 0, 0, 0.02);
    border-radius: 0 0.25rem 0.25rem 0;
}

.feedback-choice {
    border-left-color: #6c757d;  /* gray - neutral, specific to option */
}

.feedback-correct {
    border-left-color: #198754;  /* green - success */
}

.feedback-incorrect {
    border-left-color: #0d6efd;  /* blue - informational, not punitive */
}

/* ===================================================================
   SignpostItem Layout Styles (v1.31.0 - ADR-010 Session 7)
   =================================================================== */

.signpost {
    max-width: 600px;
    margin: 2rem auto;
    padding: 2rem;
    background: var(--bs-body-bg, #fff);
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    text-align: center;
}

.signpost-header {
    margin-bottom: 1.5rem;
}

.signpost-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--bs-primary-bg-subtle, #e3f2fd);
    color: var(--bs-primary, #1976d2);
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.signpost-badge.signpost-complete {
    background: var(--bs-success-bg-subtle, #e8f5e9);
    color: var(--bs-success, #388e3c);
}

.signpost-overview,
.signpost-custom {
    text-align: left;
    margin: 1rem 0;
    color: var(--bs-secondary-color, #666);
    line-height: 1.6;
}

.signpost-objectives {
    text-align: left;
    margin: 1.5rem 0;
}

.signpost-objectives h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.signpost-objectives ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.signpost-objectives li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.signpost-objectives li::before {
    content: "\2726"; /* Four-pointed star */
    position: absolute;
    left: 0;
    color: var(--bs-primary, #1976d2);
}

.objective-badge {
    display: inline-block;
    padding: 0.125rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    margin-right: 0.5rem;
    font-weight: 500;
}

.badge-recall { background: #fff3e0; color: #e65100; }
.badge-understand { background: #e8f5e9; color: #2e7d32; }
.badge-apply { background: #e3f2fd; color: #1565c0; }
.badge-analyze { background: #f3e5f5; color: #7b1fa2; }

.signpost-achievements {
    text-align: left;
    margin: 1.5rem 0;
}

.signpost-achievements h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.objective-row {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    padding: 0.5rem 0;
}

.objective-row.achieved i {
    color: var(--bs-success, #198754);
    margin-top: 0.2rem;
}

.signpost-stats {
    color: var(--bs-secondary-color, #6c757d);
    font-size: 0.875rem;
    margin: 1rem 0;
}

.signpost-stats .separator {
    margin: 0 0.5rem;
}

.signpost-tags {
    margin: 1rem 0;
}

.tag-chip {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    margin: 0.125rem;
    color: white;
}

.signpost-preview {
    text-align: left;
    margin: 1.5rem 0;
    padding: 1rem;
    background: var(--bs-tertiary-bg, #f8f9fa);
    border-radius: 8px;
}

.signpost-preview h3 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--bs-secondary-color, #6c757d);
    margin-bottom: 0.5rem;
}

.signpost-preview p {
    margin: 0.5rem 0 0;
    color: var(--bs-secondary-color, #666);
    font-size: 0.9rem;
}

.signpost-continue {
    margin-top: 1.5rem;
}

/* Responsive adjustments */
@media (max-width: 640px) {
    .signpost {
        margin: 1rem;
        padding: 1.5rem;
    }
}