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

/* Custom Training Banner - Horizontal - COMPACT */
.custom-training-banner {
    background: linear-gradient(135deg, var(--primary-purple), var(--accent-pink));
    padding: 0.75rem 0;
    margin-bottom: var(--spacing-sm);
}

.training-banner-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    color: white;
}

.banner-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.banner-text {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.banner-text strong {
    font-size: 1rem;
    font-weight: 700;
}

.banner-text span {
    font-size: 0.8rem;
    opacity: 0.9;
}

.banner-actions {
    display: flex;
    gap: 0.5rem;
}

.banner-btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 0.85rem;
}

.banner-btn.primary {
    background: white;
    color: var(--primary-purple);
}

.banner-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.banner-btn.secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.banner-btn.secondary:hover {
    background: white;
    color: var(--primary-purple);
}

/* Main Layout with Sidebar - COMPACT */
.courses-main-layout {
    padding: var(--spacing-md) 0;
}

.layout-wrapper {
    display: block;
}

/* Left Sidebar - Track Navigation - AUTO-SCROLLING */
.track-sidebar {
    width: 100%;
    flex-shrink: 0;
    position: sticky;
    top: 76px;
    background: white;
    z-index: 100;
    padding: var(--spacing-sm) 0;
    border-bottom: 2px solid var(--primary-purple-light);
    margin-bottom: var(--spacing-md);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    overflow: hidden;
}

.sidebar-title {
    display: none;
}

.track-nav {
    display: flex;
    flex-direction: row;
    gap: 0.5rem;
    overflow: hidden;
    padding: 0.25rem 0;
    position: relative;
}

.track-nav::before,
.track-nav::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 50px;
    z-index: 2;
    pointer-events: none;
}

.track-nav::before {
    left: 0;
    background: linear-gradient(to right, white, transparent);
}

.track-nav::after {
    right: 0;
    background: linear-gradient(to left, white, transparent);
}

/* Auto-scroll animation wrapper */
.track-nav {
    animation: scroll 40s linear infinite;
    width: max-content;
}

.track-nav:hover {
    animation-play-state: paused;
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(calc(-100% / 2));
    }
}

.track-nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: white;
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--primary-purple);
    transition: all 0.3s;
    border: 2px solid var(--primary-purple-light);
    box-shadow: 0 2px 4px rgba(0,0,0,0.08);
    white-space: nowrap;
    flex-shrink: 0;
}

.track-nav-link:hover {
    background: linear-gradient(135deg, var(--primary-purple), var(--accent-pink));
    color: white;
    border-color: var(--primary-purple);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.track-nav-link.active {
    background: var(--primary-purple);
    color: white;
    border-color: var(--primary-purple);
}

.track-icon {
    font-size: 1.3rem;
    flex-shrink: 0;
}

.track-name {
    font-weight: 600;
    font-size: 0.85rem;
    line-height: 1.2;
}

/* Right Content Area */
.courses-content {
    flex: 1;
    min-width: 0;
}

/* Hide old floating badge and category links */
.custom-course-badge,
.category-quick-links {
    display: none;
}

/* Custom Course Badge - Compact floating notification */
.custom-course-badge {
    position: fixed;
    top: 100px;
    left: 20px;
    background: linear-gradient(135deg, #7C3AED, #EC4899);
    color: white;
    padding: 1rem;
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 24px rgba(124, 58, 237, 0.3);
    max-width: 280px;
    z-index: 900;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    animation: slideInLeft 0.5s ease-out;
}

@keyframes slideInLeft {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.badge-icon {
    font-size: 2rem;
    text-align: center;
}

.badge-content {
    text-align: center;
}

.badge-content strong {
    display: block;
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: white;
}

.badge-content p {
    font-size: 0.85rem;
    margin: 0;
    opacity: 0.95;
    color: white;
}

.badge-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.badge-btn {
    padding: 0.625rem 1rem;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: var(--font-primary);
}

.badge-btn.primary {
    background: white;
    color: var(--primary-purple);
}

.badge-btn.primary:hover {
    background: var(--neutral-light);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.badge-btn.secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.badge-btn.secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* Responsive - Hide on mobile */
@media (max-width: 768px) {
    .custom-course-badge {
        display: none;
    }
}

/* Category Quick Links Bar */
.category-quick-links {
    background: var(--neutral-white);
    border-bottom: 2px solid var(--neutral-light);
    position: sticky;
    top: 76px;
    z-index: 99;
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-md) 0;
}

.category-links-wrapper {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) 0;
    justify-content: flex-start;
    max-width: 100%;
}

/* Scrollbar styles removed - now using flex-wrap for multiple rows */

.category-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, #7C3AED10, #EC489910);
    border: 2px solid var(--primary-purple-light);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: var(--neutral-dark);
    font-weight: 600;
    font-size: 0.95rem;
    white-space: nowrap;
    transition: all var(--transition-base);
    cursor: pointer;
    flex: 0 0 calc(25% - var(--spacing-sm));
    min-width: 200px;
}

/* Featured tracks - AI/Data specializations */
.category-link.featured {
    background: linear-gradient(135deg, #7C3AED10, #EC489910);
    color: var(--neutral-dark);
    border: 2px solid var(--primary-purple-light);
    font-weight: 700;
    box-shadow: 0 2px 8px rgba(124, 58, 237, 0.15);
}

.category-link.featured:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(124, 58, 237, 0.25);
    background: var(--gradient-1);
    color: var(--neutral-white);
    border-color: transparent;
}

.category-link:hover {
    background: var(--gradient-1);
    color: var(--neutral-white);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: transparent;
}

.category-link.active {
    background: var(--gradient-1);
    color: var(--neutral-white);
    border-color: transparent;
}

.category-icon-small {
    font-size: 1.5rem;
    font-family: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", "Android Emoji", "EmojiSymbols", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1;
    display: inline-block;
    vertical-align: middle;
}

/* Page Hero - COMPACT */
.page-hero {
    background: var(--gradient-2);
    padding: var(--spacing-md) 0;
    text-align: center;
    color: var(--neutral-white);
}

.page-title {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.page-subtitle {
    font-size: 0.95rem;
    opacity: 0.95;
    max-width: 600px;
    margin: 0 auto;
}

/* Search and Filter Section - COMPACT */
.search-filter-section {
    padding: var(--spacing-sm) 0;
    background: var(--neutral-white);
    border-bottom: 1px solid var(--neutral-light);
    box-shadow: var(--shadow-sm);
}

.search-filter-bar {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: var(--spacing-sm);
}

.search-box {
    position: relative;
    display: flex;
}

.search-box input {
    flex: 1;
    padding: 0.75rem 1rem;
    padding-right: 3rem;
    border: 2px solid var(--neutral-light);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: var(--font-primary);
    transition: all var(--transition-base);
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-purple);
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
}

/* Custom search suggestions dropdown */
.search-suggestions {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--neutral-white);
    border: 2px solid var(--primary-purple-light);
    border-top: none;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    max-height: 300px;
    overflow-y: auto;
    display: none;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.search-suggestions.active {
    display: block;
}

.search-suggestion-item {
    padding: 0.75rem 1rem;
    cursor: pointer;
    color: var(--neutral-dark);
    border-bottom: 1px solid var(--neutral-light);
    transition: background-color 0.2s;
}

.search-suggestion-item:last-child {
    border-bottom: none;
}

.search-suggestion-item:hover,
.search-suggestion-item.highlighted {
    background: linear-gradient(135deg, #7C3AED15, #EC489915);
    color: var(--primary-purple);
}

.search-box {
    position: relative;
}

.search-btn {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.5rem;
}

.filter-dropdown select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--neutral-light);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-family: var(--font-primary);
    background: var(--neutral-white);
    cursor: pointer;
    transition: all var(--transition-base);
}

.filter-dropdown select:focus {
    outline: none;
    border-color: var(--primary-purple);
}

/* Courses Main */
.courses-main {
    padding: var(--spacing-2xl) 0;
    background: var(--neutral-light);
}

/* Course Category - COMPACT */
.course-category {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--neutral-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    scroll-margin-top: 160px;
}

.category-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 3px solid var(--primary-purple-light);
}

.category-icon {
    font-size: 2.25rem;
    width: 55px;
    height: 55px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #7C3AED15, #EC489915);
    border-radius: var(--radius-lg);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Color Emoji", "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", sans-serif;
}

.category-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--neutral-dark);
    margin: 0 0 0.15rem 0;
    font-weight: 700;
}

.category-description {
    font-size: 0.85rem;
    color: var(--neutral-medium);
    margin: 0;
}

/* Courses Grid - 3 CARDS PER ROW */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

/* Course Card - COMPACT */
.course-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    cursor: pointer;
    position: relative;
    border: 2px solid rgba(124, 58, 237, 0.1);
    display: flex;
    flex-direction: column;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.course-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(124, 58, 237, 0.15);
    border-color: var(--primary-purple);
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.02), rgba(236, 72, 153, 0.02));
}

/* Module overlay removed - All modules shown on course detail page */

.course-badge {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    background: var(--primary-purple);
    color: var(--neutral-white);
    z-index: 5;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
    max-width: 100px;
    text-align: center;
    line-height: 1.2;
}

.course-badge.popular {
    background: var(--gradient-1);
}

.course-badge.hot {
    background: linear-gradient(135deg, #F59E0B, #EC4899);
}

.course-badge.new {
    background: var(--accent-green);
}

.course-card h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    color: var(--neutral-dark);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    line-height: 1.3;
    padding-right: 110px;
    margin-top: 0.25rem;
}

.course-brief {
    font-size: 0.9rem;
    color: var(--neutral-medium);
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
}

.course-meta {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: auto;
    margin-bottom: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    border-top: 1px solid rgba(124, 58, 237, 0.1);
}

.course-meta span {
    flex: 1;
    font-size: 0.8rem;
    color: var(--neutral-medium);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.3rem;
    font-weight: 600;
    background: rgba(124, 58, 237, 0.05);
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Color Emoji", "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", sans-serif;
}

/* Course Card Actions - Two Buttons */
.course-actions {
    display: flex;
    gap: 0.5rem;
    position: relative;
    z-index: 15;
    pointer-events: auto;
}

.course-link,
.course-link-secondary {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.85rem;
    transition: all var(--transition-base);
    padding: 0.7rem 0.75rem;
    border-radius: var(--radius-sm);
    min-height: 42px;
    box-sizing: border-box;
}

.course-link-secondary {
    color: var(--primary-purple);
    background: white;
    border: 2px solid var(--primary-purple);
}

.course-link {
    color: white;
    background: var(--primary-purple);
    border: 2px solid var(--primary-purple);
}

.course-link:hover {
    background: var(--primary-purple-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(124, 58, 237, 0.3);
}

.course-link-secondary:hover {
    background: var(--primary-purple);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(124, 58, 237, 0.3);
}

/* Card hover effect - buttons already styled */
.course-card:hover .course-link,
.course-card:hover .course-link-secondary {
    opacity: 1;
}

/* Active Nav Link */
.nav-menu a.active {
    color: var(--primary-purple);
    font-weight: 700;
}

.nav-menu a.active::after {
    width: 100%;
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .search-filter-bar {
        grid-template-columns: 1fr 1fr;
    }

    .search-box {
        grid-column: 1 / -1;
    }

    .courses-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }

    .category-title {
        font-size: 1.75rem;
    }
}

@media (max-width: 768px) {
    .page-title {
        font-size: 2rem;
    }

    .page-subtitle {
        font-size: 1rem;
    }

    .category-quick-links {
        top: 60px;
    }

    .category-link {
        padding: 0.6rem 1rem;
        font-size: 0.85rem;
    }

    .category-icon-small {
        font-size: 1rem;
    }

    .training-banner-content {
        flex-direction: column;
        text-align: center;
    }

    .banner-actions {
        flex-direction: column;
        width: 100%;
    }

    .banner-btn {
        width: 100%;
    }

    .track-nav-link {
        font-size: 0.75rem;
        padding: 0.4rem 0.8rem;
    }

    .track-icon {
        font-size: 1.1rem;
    }

    .search-filter-bar {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .search-box {
        grid-column: 1;
    }

    .category-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .category-icon {
        font-size: 2.5rem;
        width: 60px;
        height: 60px;
    }

    .category-title {
        font-size: 1.5rem;
    }

    .courses-grid {
        grid-template-columns: 1fr;
    }

    .course-category {
        padding: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .page-title {
        font-size: 1.75rem;
    }

    .category-title {
        font-size: 1.35rem;
    }

    .course-card {
        padding: var(--spacing-md);
    }

    .course-card h3 {
        font-size: 1.1rem;
    }
}

/* No Results Message */
.no-results {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--neutral-medium);
}

.no-results h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--neutral-dark);
    margin-bottom: var(--spacing-sm);
}

/* Hidden class for filtering */
.hidden {
    display: none !important;
}