/* Courses Page Styles */
.page-hero-sm {
    padding: 140px 0 60px;
    text-align: center;
    background: linear-gradient(180deg, rgba(102, 126, 234, 0.05) 0%, transparent 100%);
}

.page-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: 1rem;
}

.filters {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.625rem 1.25rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 9999px;
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--gradient-primary);
    border-color: transparent;
    color: white;
}

.courses-section {
    padding: 4rem 0;
}

.courses-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.course-row {
    display: grid;
    grid-template-columns: 240px 1fr auto;
    gap: 1.5rem;
    align-items: center;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 1.5rem;
    padding: 2px;
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    transform-style: preserve-3d;
}

.course-row::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 1.5rem;
    padding: 2px;
    background: linear-gradient(45deg, #6366f1, #ec4899, #06b6d4, #a855f7, #6366f1);
    background-size: 300% 300%;
    animation: gradient-rotate 3s ease infinite;
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    z-index: 1;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.course-row:hover {
    transform: translateY(-10px) rotateX(3deg);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.3), 0 0 80px rgba(99, 102, 241, 0.2);
}

.course-row:hover::before {
    opacity: 1;
}

/* Shine effect */
.course-row::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent 40%, rgba(255, 255, 255, 0.1) 50%, transparent 60%);
    transform: translateX(-100%) rotate(45deg);
    transition: transform 0.8s ease;
    pointer-events: none;
    z-index: 2;
}

.course-row:hover::after {
    transform: translateX(100%) rotate(45deg);
}

.course-row > * {
    position: relative;
    z-index: 3;
    background: rgba(15, 23, 42, 0.95);
    padding: 1.25rem;
    border-radius: calc(1.5rem - 2px);
}

.course-thumb {
    width: 240px;
    height: 135px;
    border-radius: 0.75rem;
    overflow: hidden;
}

.course-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.course-meta-row {
    display: flex;
    gap: 1rem;
    margin-bottom: 0.75rem;
}

.course-tag {
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.course-tag.sap { background: rgba(102, 126, 234, 0.2); color: #818cf8; }
.course-tag.workday { background: rgba(236, 72, 153, 0.2); color: #f472b6; }

.course-level,
.course-duration {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.course-title-lg {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.course-desc-lg {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin-bottom: 1rem;
}

.course-footer-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.course-rating-lg {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.stars {
    color: #fbbf24;
}

.course-price-lg {
    font-size: 1.5rem;
    font-weight: 700;
    color: #10b981;
}

/* Course Placeholder Icons */
.course-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    border-radius: 0.75rem;
}

.sf-placeholder {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.2), rgba(236, 72, 153, 0.2));
}

.ec-placeholder {
    background: linear-gradient(135deg, rgba(249, 115, 22, 0.2), rgba(245, 158, 11, 0.2));
}

.ariba-placeholder {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(6, 182, 212, 0.2));
}

.cpq-placeholder {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(139, 92, 246, 0.2));
}

.ai-placeholder {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.2), rgba(16, 185, 129, 0.2));
}

.joule-placeholder {
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.2), rgba(244, 63, 94, 0.2));
}

@media (max-width: 992px) {
    .course-row {
        grid-template-columns: 1fr;
    }
    
    .course-thumb {
        width: 100%;
        height: auto;
        aspect-ratio: 16/9;
    }
}