/* Courses Page Specific Styles */

/* Filter Tabs Section */
#filter-tabs-section {
    transition: all 0.3s ease;
}

/* Filter Tabs */
.filter-tab {
    padding: 10px 24px;
    border-radius: 25px;
    border: 2px solid #e5e7eb;
    background: white;
    color: #6b7280;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-tab:hover {
    border-color: #3b82f6;
    color: #3b82f6;
}

.filter-tab.active {
    background: #3b82f6;
    border-color: #3b82f6;
    color: white;
}

/* Course Cards */
.course-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 520px;
}

.course-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

.course-image {
    position: relative;
    width: 100%;
    height: 160px;
    overflow: hidden;
    flex-shrink: 0;
}

.course-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.course-card:hover .course-image img {
    transform: scale(1.1);
}

.course-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    color: white;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 10px;
    font-weight: bold;
    text-transform: uppercase;
}

.course-badge.badge-premium {
    background: linear-gradient(135deg, #8b5cf6, #ec4899);
}

.course-badge.badge-vip {
    background: linear-gradient(135deg, #eab308, #f59e0b);
}

.course-content {
    padding: 16px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.course-meta {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    margin-bottom: 10px;
}

.course-level {
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
}

.level-beginner {
    background: #dbeafe;
    color: #1e40af;
}

.level-intermediate {
    background: #fef3c7;
    color: #92400e;
}

.level-advanced {
    background: #ede9fe;
    color: #5b21b6;
}

.level-all {
    background: #d1fae5;
    color: #065f46;
}

.course-duration {
    display: flex;
    align-items: center;
    gap: 4px;
    color: #6b7280;
    font-size: 13px;
}

.course-duration svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.course-title {
    font-size: 18px;
    font-weight: bold;
    color: #1f2937;
    margin-bottom: 8px;
    line-height: 1.3;
}

.course-description {
    color: #6b7280;
    line-height: 1.5;
    margin-bottom: 12px;
    font-size: 15px;
    min-height: 40px;
}

.course-features {
    list-style: none;
    padding: 0;
    margin: 0 0 12px 0;
    flex: 1;
}

.course-features li {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 0;
    color: #4b5563;
    font-size: 15px;
}

.course-features li svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.course-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 12px;
    border-top: 1px solid #e5e7eb;
    margin-top: auto;
    gap: 10px;
    flex-wrap: wrap;
}

.course-price {
    display: flex;
    flex-direction: column;
}

.price-amount {
    font-size: 20px;
    font-weight: bold;
    color: #3b82f6;
    white-space: nowrap;
}

.price-label {
    font-size: 12px;
    color: #6b7280;
}

.course-button {
    background: #3b82f6;
    color: white;
    padding: 10px 16px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 13px;
    transition: background 0.3s ease;
    text-decoration: none;
    white-space: nowrap;
    text-align: center;
}

.course-button:hover {
    background: #2563eb;
}

/* Comparison Table */
.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.comparison-table thead {
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    color: white;
}

.comparison-table th {
    padding: 16px;
    text-align: left;
    font-weight: 600;
}

.comparison-table td {
    padding: 16px;
    border-bottom: 1px solid #e5e7eb;
}

.comparison-table tbody tr:hover {
    background: #f9fafb;
}

.comparison-table tbody tr:last-child td {
    border-bottom: none;
}

/* FAQ Section */
.faq-item {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.faq-question {
    width: 100%;
    padding: 20px 24px;
    background: white;
    border: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    color: #1f2937;
    text-align: left;
    transition: background 0.3s ease;
}

.faq-question:hover {
    background: #f9fafb;
}

.faq-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0 24px;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 24px 20px 24px;
}

.faq-answer p {
    color: #6b7280;
    line-height: 1.8;
}

/* Filter Animation */
.course-card.hide {
    display: none;
}

.course-card.show {
    display: flex;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ====== COURSE CARD SIMPLE STYLES ====== */
.course-card-simple {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.course-card-simple:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.course-card-image {
    position: relative;
    height: 140px;
    overflow: hidden;
}

.course-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.course-card-simple:hover .course-card-image img {
    transform: scale(1.05);
}

.course-card-image .course-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: #ef4444;
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.course-card-image .course-badge.hot { background: #ef4444; }
.course-card-image .course-badge.new { background: #22c55e; }
.course-card-image .course-badge.popular { background: #8b5cf6; }

.course-card-body {
    padding: 16px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.course-card-title {
    font-size: 16px;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 8px;
    line-height: 1.3;
}

.course-card-desc {
    font-size: 13px;
    color: #6b7280;
    margin-bottom: 12px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.course-card-features {
    list-style: none;
    padding: 0;
    margin: 0 0 16px 0;
    flex: 1;
}

.course-card-features li {
    font-size: 12px;
    color: #4b5563;
    padding: 3px 0;
}

.course-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 12px;
    border-top: 1px solid #e5e7eb;
    margin-top: auto;
}

.course-card-price {
    font-size: 18px;
    font-weight: 700;
    color: #dc2626;
}

.course-card-price small {
    font-size: 12px;
    font-weight: 400;
    color: #6b7280;
}

.course-card-btn {
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    color: white;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
}

.course-card-btn:hover {
    background: linear-gradient(135deg, #2563eb, #1e40af);
    transform: scale(1.05);
}

/* ====== COURSE DETAIL TABLE STYLES ====== */
.course-detail-table {
    border-collapse: collapse;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.course-detail-table thead tr {
    text-transform: uppercase;
    font-size: 14px;
}

.course-detail-table tbody tr {
    background: white;
    border-bottom: 1px solid #e5e7eb;
    transition: background 0.2s ease;
}

.course-detail-table tbody tr:hover {
    background: #f9fafb;
}

.course-detail-table tbody tr:nth-child(even) {
    background: #f3f4f6;
}

.course-detail-table tbody tr:nth-child(even):hover {
    background: #e5e7eb;
}

.course-detail-table tbody tr.highlight-row {
    background: #fef3c7;
    font-weight: 500;
}

.course-detail-table tbody tr.highlight-row:hover {
    background: #fde68a;
}

.course-detail-table td {
    font-size: 14px;
    color: #374151;
}

/* Responsive Design */
@media (max-width: 768px) {
    .course-footer {
        flex-direction: column;
        gap: 16px;
        align-items: flex-start;
    }

    .course-button {
        width: 100%;
        text-align: center;
    }

    .comparison-table {
        font-size: 14px;
    }

    .comparison-table th,
    .comparison-table td {
        padding: 12px 8px;
    }

    .filter-tab {
        padding: 8px 16px;
        font-size: 14px;
    }
    
    .course-card-simple {
        max-width: 100%;
    }
    
    .course-detail-table {
        font-size: 12px;
    }
    
    .course-detail-table th,
    .course-detail-table td {
        padding: 8px 6px !important;
    }
}

/* ====== COURSE CARD OVERLAY - VIEW SCHEDULE ====== */
.course-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(30, 64, 175, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.course-card-image:hover .course-overlay {
    opacity: 1;
}

.view-classes-btn {
    background: white;
    color: #1e40af;
    padding: 10px 20px;
    border-radius: 25px;
    font-weight: 600;
    font-size: 14px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    transform: translateY(10px);
    transition: all 0.3s ease;
}

.course-card-image:hover .view-classes-btn {
    transform: translateY(0);
}

/* ====== COURSE CLASSES MODAL ====== */
#course-classes-modal .border {
    border-color: #e5e7eb;
}

#course-classes-modal .rounded-xl {
    border-radius: 12px;
}

#course-classes-modal h3 {
    color: #1f2937;
}

#course-classes-modal .bg-gray-50 {
    background-color: #f9fafb;
}

#course-classes-modal .text-blue-700 {
    color: #1d4ed8;
}

/* Animation */
@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(-10px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

#course-classes-modal > div {
    animation: modalFadeIn 0.3s ease-out;
}