/* ==========================================================================
   Dynamic Lesson Resource Modal Stylesheet
   File: assets/css/components/resource-modal.css
   Pure Vanilla CSS with Design System Tokens & Dark Mode Architecture
   ========================================================================== */

/* Overlay Backdrop */
.dynamic-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-4, 1rem);
    box-sizing: border-box;
}

.dynamic-modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: opacity 0.3s ease;
}

/* Modal Window */
.dynamic-modal-content {
    position: relative;
    background-color: var(--color-bg-surface, #ffffff);
    color: var(--color-text-main, #0f172a);
    border-radius: var(--radius-2xl, 1.25rem);
    border: 1px solid var(--color-border, #e2e8f0);
    width: 100%;
    max-width: 880px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    display: flex;
    flex-direction: column;
    z-index: 10000;
    transform: scale(0.95);
    opacity: 0;
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.25s ease;
}

[data-theme="dark"] .dynamic-modal-content,
.dark .dynamic-modal-content {
    background-color: #1e293b;
    border-color: #334155;
    color: #f8fafc;
}

.dynamic-modal-overlay.active .dynamic-modal-content {
    transform: scale(1);
    opacity: 1;
}

/* Close Icon Button */
.dynamic-modal-close-icon {
    position: absolute;
    top: 1rem;
    right: 1.25rem;
    background: none;
    border: none;
    font-size: 1.75rem;
    color: var(--color-text-muted, #94a3b8);
    cursor: pointer;
    line-height: 1;
    padding: 0.25rem;
    border-radius: 50%;
    transition: background-color 0.2s, color 0.2s;
    z-index: 10;
}

.dynamic-modal-close-icon:hover {
    background-color: var(--color-border, #e2e8f0);
    color: var(--color-text-main, #0f172a);
}

[data-theme="dark"] .dynamic-modal-close-icon:hover,
.dark .dynamic-modal-close-icon:hover {
    background-color: #334155;
    color: #ffffff;
}

/* Header */
.dynamic-modal-header {
    padding: var(--spacing-6, 1.5rem) var(--spacing-6, 1.5rem) 0 var(--spacing-6, 1.5rem);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-4, 1rem);
}

.dynamic-modal-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-full, 9999px);
    background-color: rgba(79, 70, 229, 0.1);
    color: var(--color-primary, #4f46e5);
    margin-bottom: var(--spacing-2, 0.5rem);
}

.dynamic-modal-title {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-text-main, #0f172a);
    margin: 0;
    line-height: 1.2;
}

[data-theme="dark"] .dynamic-modal-title,
.dark .dynamic-modal-title {
    color: #f8fafc;
}

/* Modal Header Actions */
.dynamic-modal-header-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-right: 1.75rem;
}

.dynamic-modal-header-actions .speak-lesson-btn {
    margin-right: 0;
}

/* Speak & Action Buttons */
.speak-lesson-btn {
    padding: 0.5rem 0.85rem;
    font-size: 0.875rem;
    font-weight: 700;
    border-radius: var(--radius-full, 9999px);
    background-color: var(--color-bg-base, #ffffff);
    color: var(--color-primary, #4f46e5);
    border: 1px solid var(--color-border, #e2e8f0);
    display: flex;
    align-items: center;
    gap: 0.35rem;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-right: 1.75rem;
}

[data-theme="dark"] .speak-lesson-btn,
.dark .speak-lesson-btn {
    background-color: #0f172a;
    border-color: #334155;
}

.speak-lesson-btn:hover {
    background-color: rgba(79, 70, 229, 0.08);
    border-color: var(--color-primary, #4f46e5);
}

.speak-lesson-btn.speaking {
    background-color: var(--color-primary, #4f46e5);
    color: white;
    animation: pulseSpeaker 1.5s infinite ease-in-out;
}

@keyframes pulseSpeaker {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* Divider */
.dynamic-modal-divider {
    height: 1px;
    background-color: var(--color-border, #e2e8f0);
    margin: var(--spacing-4, 1rem) 0;
    width: 100%;
}

[data-theme="dark"] .dynamic-modal-divider,
.dark .dynamic-modal-divider {
    background-color: #334155;
}

/* Body Content */
.dynamic-modal-body {
    padding: 0 var(--spacing-6, 1.5rem) var(--spacing-6, 1.5rem) var(--spacing-6, 1.5rem);
}

.lesson-section {
    margin-bottom: var(--spacing-6, 1.5rem);
}

.lesson-section-title {
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted, #64748b);
    margin-bottom: var(--spacing-2, 0.5rem);
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.lesson-section-title i {
    color: var(--color-primary, #4f46e5);
}

.lesson-text {
    font-size: 1rem;
    color: var(--color-text-main, #334155);
    line-height: 1.6;
    margin: 0;
}

[data-theme="dark"] .lesson-text,
.dark .lesson-text {
    color: #cbd5e1;
}

/* Example Callout */
.example-block {
    background-color: var(--color-bg-base, #f8fafc);
    border-left: 4px solid var(--color-secondary, #6366f1);
    padding: var(--spacing-4, 1rem);
    border-radius: 0 var(--radius-lg, 0.75rem) var(--radius-lg, 0.75rem) 0;
}

[data-theme="dark"] .example-block,
.dark .example-block {
    background-color: #0f172a;
    border-left-color: #818cf8;
}

.lesson-example-text {
    font-size: 0.95rem;
    font-style: italic;
    color: var(--color-text-main, #334155);
    line-height: 1.5;
    margin: 0;
}

[data-theme="dark"] .lesson-example-text,
.dark .lesson-example-text {
    color: #cbd5e1;
}

/* Quiz Block */
.quiz-block {
    background-color: rgba(79, 70, 229, 0.03);
    border: 1.5px dashed var(--color-border, #e2e8f0);
    padding: var(--spacing-5, 1.25rem);
    border-radius: var(--radius-xl, 1rem);
}

[data-theme="dark"] .quiz-block,
.dark .quiz-block {
    background-color: rgba(79, 70, 229, 0.07);
    border-color: #334155;
}

.quiz-question-text {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-text-main, #0f172a);
    margin-bottom: var(--spacing-4, 1rem);
}

[data-theme="dark"] .quiz-question-text,
.dark .quiz-question-text {
    color: #f8fafc;
}

.quiz-choices-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2, 0.5rem);
}

.quiz-choice-btn {
    padding: 0.625rem 1rem;
    font-size: 0.9rem;
    font-weight: 600;
    text-align: left;
    background-color: var(--color-bg-surface, #ffffff);
    color: var(--color-text-main, #0f172a);
    border: 1px solid var(--color-border, #e2e8f0);
    border-radius: var(--radius-lg, 0.75rem);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

[data-theme="dark"] .quiz-choice-btn,
.dark .quiz-choice-btn {
    background-color: #1e293b;
    border-color: #334155;
    color: #f8fafc;
}

.quiz-choice-btn:hover {
    background-color: var(--color-bg-base, #f8fafc);
    border-color: var(--color-text-muted, #94a3b8);
}

[data-theme="dark"] .quiz-choice-btn:hover,
.dark .quiz-choice-btn:hover {
    background-color: #0f172a;
}

.quiz-choice-btn.selected {
    border-color: var(--color-primary, #4f46e5);
    background-color: rgba(79, 70, 229, 0.05);
}

.quiz-choice-btn.correct {
    border-color: var(--color-success, #10b981);
    background-color: rgba(16, 185, 129, 0.08);
    color: #047857;
}

.quiz-choice-btn.incorrect {
    border-color: var(--color-error, #ef4444);
    background-color: rgba(239, 68, 68, 0.08);
    color: #b91c1c;
}

/* Quiz Feedback */
.quiz-feedback-box {
    margin-top: var(--spacing-4, 1rem);
    padding: var(--spacing-3, 0.75rem) var(--spacing-4, 1rem);
    border-radius: var(--radius-lg, 0.75rem);
    font-size: 0.875rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: var(--spacing-2, 0.5rem);
}

.quiz-feedback-box.correct {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--color-success, #10b981);
}

.quiz-feedback-box.incorrect {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--color-error, #ef4444);
}

/* Footer */
.dynamic-modal-footer {
    padding: var(--spacing-4, 1rem) var(--spacing-6, 1.5rem);
    border-top: 1px solid var(--color-border, #e2e8f0);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--color-bg-base, #f8fafc);
    border-radius: 0 0 var(--radius-2xl, 1.25rem) var(--radius-2xl, 1.25rem);
}

[data-theme="dark"] .dynamic-modal-footer,
.dark .dynamic-modal-footer {
    background-color: #0f172a;
    border-top-color: #334155;
}

.dynamic-modal-footer-copy {
    font-size: 0.75rem;
    color: var(--color-text-muted, #64748b);
}

.dynamic-modal-close-btn {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 700;
    border-radius: var(--radius-lg, 0.75rem);
    background-color: var(--color-primary, #4f46e5);
    color: white;
    border: none;
    cursor: pointer;
    transition: background-color 0.2s;
}

.dynamic-modal-close-btn:hover {
    background-color: var(--color-primary-hover, #4338ca);
}

/* ==========================================================================
   Lecture-Style Additions & Lexile Switcher
   ========================================================================== */
.lecture-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.75rem;
    padding: 0.75rem var(--spacing-6, 1.5rem);
    background: var(--color-bg-base, #f8fafc);
    border-bottom: 1px solid var(--color-border, #e2e8f0);
}

[data-theme="dark"] .lecture-toolbar,
.dark .lecture-toolbar {
    background: #0f172a;
    border-bottom-color: #334155;
}

.lexile-toggle-group {
    display: inline-flex;
    align-items: center;
    background: var(--color-bg-surface, #ffffff);
    border: 1.5px solid var(--color-border, #cbd5e1);
    border-radius: var(--radius-full, 9999px);
    padding: 0.2rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

[data-theme="dark"] .lexile-toggle-group,
.dark .lexile-toggle-group {
    background: #1e293b;
    border-color: #334155;
}

.lexile-toggle-label {
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted, #64748b);
    padding: 0 0.5rem 0 0.4rem;
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.lexile-toggle-btn {
    padding: 0.35rem 0.85rem;
    border-radius: var(--radius-full, 9999px);
    font-size: 0.8rem;
    font-weight: 800;
    border: none;
    background: transparent;
    color: var(--color-text-muted, #64748b);
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.lexile-toggle-btn:hover {
    color: var(--color-text-main, #0f172a);
}

.lexile-toggle-btn.active {
    background: var(--color-primary, #4f46e5);
    color: #ffffff;
    box-shadow: 0 2px 6px rgba(79, 70, 229, 0.35);
}

.lecture-card {
    background: var(--color-bg-surface, #ffffff);
    border: 1px solid var(--color-border, #e2e8f0);
    border-radius: 1rem;
    padding: 1.25rem 1.5rem;
    margin-bottom: 1.25rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

[data-theme="dark"] .lecture-card,
.dark .lecture-card {
    background: #1e293b;
    border-color: #334155;
}

.lecture-card-title {
    font-size: 0.95rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin: 0 0 0.65rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.lecture-card-desc {
    font-size: 1.025rem;
    line-height: 1.7;
    color: var(--color-text-main, #1e293b);
    margin: 0;
}

[data-theme="dark"] .lecture-card-desc,
.dark .lecture-card-desc {
    color: #e2e8f0;
}

.lecture-breakdown-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.lecture-breakdown-item {
    background: var(--color-bg-base, #f8fafc);
    border: 1px solid var(--color-border, #e2e8f0);
    border-radius: 0.75rem;
    padding: 0.85rem 1rem;
}

[data-theme="dark"] .lecture-breakdown-item,
.dark .lecture-breakdown-item {
    background: #0f172a;
    border-color: #334155;
}

.lecture-breakdown-label {
    font-size: 0.8rem;
    font-weight: 800;
    color: var(--color-primary, #4f46e5);
    margin-bottom: 0.25rem;
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.lecture-breakdown-text {
    font-size: 0.875rem;
    color: var(--color-text-muted, #64748b);
    line-height: 1.5;
    margin: 0;
}

.lecture-callout-protip {
    background: rgba(245, 158, 11, 0.08);
    border-left: 4px solid #f59e0b;
    border-radius: 0 0.75rem 0.75rem 0;
    padding: 1rem 1.25rem;
    margin-bottom: 1.25rem;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.lecture-protip-icon {
    color: #f59e0b;
    font-size: 1.25rem;
    margin-top: 0.15rem;
}

.lecture-protip-text {
    font-size: 0.925rem;
    line-height: 1.55;
    color: var(--color-text-main, #0f172a);
    margin: 0;
}

[data-theme="dark"] .lecture-protip-text,
.dark .lecture-protip-text {
    color: #fef3c7;
}

.example-breakdown-tag {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: 0.4rem;
    font-size: 0.75rem;
    font-weight: 800;
    margin: 0 0.2rem;
}