/* ===================================
   COURSES PAGE STYLES
   =================================== */

/* Page Header */
.page-header {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-blue-dark));
    color: var(--white);
    padding: 6rem 0 4rem;
    text-align: center;
}

.page-header h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--white);
}

.page-header p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 1rem;
}

.breadcrumb a {
    color: var(--white);
    opacity: 0.8;
}

.breadcrumb a:hover {
    opacity: 1;
}

.breadcrumb span {
    opacity: 0.6;
}

/* Course Filter */
.course-filter {
    padding: 2rem 0;
    background: var(--white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 70px;
    z-index: 100;
}

.filter-buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.filter-btn {
    padding: 0.75rem 2rem;
    border: 2px solid var(--gray-300);
    background: var(--white);
    color: var(--dark-text);
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover {
    border-color: var(--primary-blue);
    color: var(--primary-blue);
}

.filter-btn.active {
    background: var(--primary-blue);
    border-color: var(--primary-blue);
    color: var(--white);
}

/* Course Detail Section */
.course-detail {
    padding: 4rem 0;
}

.course-detail:nth-child(even) {
    background: var(--light-bg);
}

.course-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 3px solid var(--primary-blue);
    flex-wrap: wrap;
    gap: 2rem;
}

.course-title-section {
    flex: 1;
    min-width: 300px;
}

.course-title-section h2 {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
    color: var(--dark-bg);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.course-title-section h2 i {
    color: var(--primary-blue);
}

.course-subtitle {
    font-size: 1.125rem;
    color: var(--gray-600);
}

.course-price {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    background: var(--white);
    padding: 1.5rem 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.price-label {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-bottom: 0.5rem;
}

.price-amount {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-blue);
    font-family: var(--font-heading);
}

.price-duration {
    font-size: 1rem;
    color: var(--gray-600);
}

/* Stream Tabs */
.stream-tabs {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.stream-tab {
    padding: 1rem 2rem;
    background: var(--white);
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-weight: 600;
    color: var(--dark-text);
    cursor: pointer;
    transition: var(--transition);
}

.stream-tab:hover {
    border-color: var(--primary-blue);
    color: var(--primary-blue);
}

.stream-tab.active {
    background: var(--primary-blue);
    border-color: var(--primary-blue);
    color: var(--white);
}

/* Course Content Grid */
.course-content-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
}

/* Content Cards */
.content-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
}

.content-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--dark-bg);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.content-card h3 i {
    color: var(--primary-blue);
}

.content-card p {
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

/* Highlights */
.highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--light-bg);
    border-radius: var(--radius-md);
}

.highlight-item i {
    color: var(--success);
    font-size: 1.25rem;
}

.highlight-item span {
    font-weight: 600;
    color: var(--dark-text);
}

/* Subjects Detail */
.subjects-detail {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.subject-item {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--light-bg);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.subject-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-md);
}

.subject-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-blue-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.subject-info h4 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--dark-bg);
}

.subject-info p {
    color: var(--gray-600);
    margin: 0;
}

/* Methodology List */
.methodology-list {
    list-style: none;
    padding: 0;
}

.methodology-list li {
    padding: 1rem;
    margin-bottom: 1rem;
    background: var(--light-bg);
    border-left: 4px solid var(--primary-blue);
    border-radius: var(--radius-md);
    color: var(--gray-600);
    line-height: 1.8;
}

.methodology-list li strong {
    color: var(--dark-text);
}

/* Material Grid */
.material-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.material-item {
    text-align: center;
    padding: 1.5rem;
    background: var(--light-bg);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.material-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.material-item i {
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.material-item h4 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    color: var(--dark-bg);
}

.material-item p {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin: 0;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.feature-box {
    text-align: center;
    padding: 1.5rem;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-blue-light));
    color: var(--white);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.feature-box:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.feature-box i {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-box h4 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    color: var(--white);
}

.feature-box p {
    font-size: 0.875rem;
    margin: 0;
    opacity: 0.9;
}

/* Test Schedule */
.test-schedule {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.schedule-item {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--light-bg);
    border-radius: var(--radius-md);
}

.schedule-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.schedule-info h4 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    color: var(--dark-bg);
}

.schedule-info p {
    color: var(--gray-600);
    margin: 0;
}

/* Crash Course List */
.crash-course-list {
    list-style: none;
    padding: 0;
}

.crash-course-list li {
    padding: 1rem;
    margin-bottom: 1rem;
    background: var(--light-bg);
    border-radius: var(--radius-md);
    color: var(--gray-600);
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.crash-course-list li i {
    color: var(--success);
    margin-top: 0.25rem;
}

/* Sidebar */
.course-sidebar {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.sidebar-card {
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.sidebar-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    color: var(--dark-bg);
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--gray-200);
}

/* Course Details List */
.course-details-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.course-details-list li {
    display: flex;
    gap: 1rem;
    padding: 1rem 0;
    border-bottom: 1px solid var(--gray-200);
}

.course-details-list li:last-child {
    border-bottom: none;
}

.course-details-list i {
    color: var(--primary-blue);
    font-size: 1.25rem;
    margin-top: 0.25rem;
}

.course-details-list strong {
    display: block;
    color: var(--dark-text);
    margin-bottom: 0.25rem;
}

.course-details-list span {
    color: var(--gray-600);
    font-size: 0.875rem;
}

/* Timing Options */
.timing-options {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.timing-option {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--light-bg);
    border-radius: var(--radius-md);
}

.timing-option i {
    font-size: 1.5rem;
    color: var(--accent-orange);
}

.timing-option strong {
    display: block;
    color: var(--dark-text);
    margin-bottom: 0.25rem;
}

.timing-option span {
    color: var(--gray-600);
    font-size: 0.875rem;
}

/* Fee Structure */
.fee-structure {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-blue-dark));
    color: var(--white);
}

.fee-structure h3 {
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.2);
}

.fee-option {
    padding: 1rem;
    margin-bottom: 1rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
}

.fee-type {
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.fee-amount {
    font-size: 1.75rem;
    font-weight: 800;
    font-family: var(--font-heading);
    margin-bottom: 0.25rem;
}

.fee-save {
    font-size: 0.875rem;
    color: var(--accent-yellow);
    font-weight: 600;
}

.btn-enroll {
    width: 100%;
    background: var(--accent-orange);
    color: var(--white);
    padding: 1rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1.125rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1rem;
}

.btn-enroll:hover {
    background: #ea580c;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Download Card */
.download-card {
    background: var(--light-bg);
}

.download-card p {
    color: var(--gray-600);
    margin-bottom: 1.5rem;
}

.btn-download {
    width: 100%;
    background: var(--secondary-green);
    color: var(--white);
    padding: 1rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-download:hover {
    background: var(--secondary-green-dark);
}

/* Responsive */
@media (max-width: 1024px) {
    .course-content-grid {
        grid-template-columns: 1fr;
    }
    
    .course-sidebar {
        order: -1;
    }
}

@media (max-width: 768px) {
    .page-header h1 {
        font-size: 2rem;
    }
    
    .course-title-section h2 {
        font-size: 1.75rem;
    }
    
    .course-header {
        flex-direction: column;
    }
    
    .course-price {
        width: 100%;
        align-items: center;
    }
    
    .highlights {
        grid-template-columns: 1fr;
    }
    
    .material-grid,
    .features-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .filter-buttons {
        flex-direction: column;
    }
    
    .filter-btn {
        width: 100%;
    }
    
    .stream-tabs {
        flex-direction: column;
    }
    
    .stream-tab {
        width: 100%;
        text-align: center;
    }
}