/* Curriculum Library Modern UI */

.header-titles h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 4px 0;
}

.header-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 0;
}

.modal-divider {
    height: 1px;
    background-color: var(--border-color);
    margin: 0 24px;
    opacity: 0.5;
}

.curriculum-section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding: 0 4px;
}

.curriculum-section-header h3 {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-faded);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin: 0;
}

.subject-count {
    font-size: 11px;
    color: var(--text-tertiary);
    font-weight: 500;
}

/* Live Search Container */
.curriculum-search-container {
    padding: 0 4px 20px;
    position: sticky;
    top: 0;
    z-index: 10;
    margin-bottom: -10px;
    /* Pull list up slightly */
}

/* Search Input Wrapper */
.search-wrapper {
    position: relative;
    width: 100%;
}

/* Search Icon */
.search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    font-size: 14px;
    transition: color 0.2s ease;
}

/* Search Input Field */
.search-input {
    width: 100%;
    padding: 12px 16px 12px 42px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    background: var(--input-bg, #f5f5f7);
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    outline: none;
    transition: all 0.2s ease;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.02);
}

.search-input:focus {
    background: var(--input-main-bg, #ffffff);
    border-color: var(--accent);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.search-input:focus+.search-icon {
    color: var(--accent);
}

.search-input::placeholder {
    color: var(--text-tertiary);
    opacity: 0.8;
}

.curricula-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding-bottom: 20px;
    padding-top: 10px;
}

.curriculum-card {
    background: var(--tool-bg);
    border: 1px solid var(--border-color);
    border-radius: 18px;
    padding: 24px;
    display: flex;
    justify-content: space-between;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.curriculum-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
}

.card-content {
    flex: 1;
}

.card-header-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
}

.badge-igcse {
    padding: 2px 10px;
    background: rgba(0, 122, 255, 0.1);
    color: #4a9eff;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
}

.badge-code {
    font-size: 11px;
    color: var(--text-tertiary);
    font-weight: 600;
}

.card-content h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 12px 0;
}

.card-description {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-footer-meta {
    display: flex;
    gap: 20px;
    align-items: center;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--text-tertiary);
    font-weight: 500;
}

.meta-item i {
    font-size: 14px;
}

.card-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
    justify-content: center;
    min-width: 160px;
    margin-left: 24px;
}

.btn-start-learning {
    background: #ffc107;
    /* Vibrant Yellow/Gold */
    color: #1a1a1a;
    border: none;
    border-radius: 10px;
    padding: 12px 20px;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s ease;
}

.btn-start-learning:hover {
    background: #ffca2c;
    transform: scale(1.02);
}

.btn-view-syllabus {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-view-syllabus:hover {
    background: var(--nav-active-bg);
}

/* Modal sizing fix */
.all-files-modal {
    width: 900px;
    max-width: 95vw;
}

/* Syllabus View Specific Overrides */
.syllabus-modal {
    width: 1000px;
}

.syllabus-meta-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 12px;
    margin-bottom: 30px;
}

.meta-card {
    padding: 12px;
    background: var(--input-main-bg);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.meta-card-label {
    font-size: 11px;
    color: var(--text-faded);
    text-transform: uppercase;
    font-weight: 700;
    margin-bottom: 4px;
}

.meta-card-value {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

.syllabus-section-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.syllabus-section-title i {
    color: var(--accent);
}

.topic-card {
    background: var(--tool-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 20px;
    border-left: 4px solid var(--accent);
    transition: all 0.3s ease;
}

.topic-card:hover {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.topic-number {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-faded);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 6px;
    display: block;
}

.topic-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.objectives-section {
    margin: 16px 0 20px 0;
    background: var(--input-main-bg);
    padding: 16px;
    border-radius: 12px;
}

.objectives-title {
    font-size: 12px;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.objectives-list {
    margin: 0;
    padding-left: 20px;
}

.objectives-list li {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 8px;
    line-height: 1.5;
}

.subtopics-section {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.subtopics-title {
    font-size: 12px;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.subtopic-item {
    padding: 12px 16px;
    background: var(--input-bg);
    border-radius: 10px;
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 12px;
    transition: all 0.2s ease;
}

.subtopic-item:hover {
    border-color: var(--accent);
    transform: translateX(4px);
}

.subtopic-number {
    font-weight: 700;
    color: var(--accent);
    font-size: 13px;
    min-width: 40px;
}

.subtopic-text {
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 500;
}

.syllabus-body-wrapper {
    padding: 24px;
}

.concepts-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.concept-card {
    border-left-color: var(--avatar-blue) !important;
}

.difficulty-badge {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-tertiary);
    text-transform: uppercase;
    background: var(--input-main-bg);
    padding: 4px 10px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.syllabus-modal .card-description {
    -webkit-line-clamp: unset;
    line-clamp: unset;
    display: block;
    overflow: visible;
}

.syllabus-modal .card-footer-meta {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
}

@media (max-width: 768px) {
    .curriculum-card {
        flex-direction: column;
    }

    .card-actions {
        margin-left: 0;
        margin-top: 20px;
        flex-direction: row;
    }

    .btn-start-learning,
    .btn-view-syllabus {
        flex: 1;
    }
}