.course-popup {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.85);
    backdrop-filter: blur(5px);
}

.popup-content {
    background-color: #ffffff;
    margin: 3% auto;
    width: 90%;
    max-width: 800px;
    border-radius: 12px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    position: relative;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideIn 0.3s ease-out;
}

.popup-header {
    position: relative;
}

.popup-banner {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 12px 12px 0 0;
}

.popup-body {
    padding: 2rem;
}

.popup-title {
    font-size: 1.8rem;
    color: #1a1a1a;
    margin-bottom: 1rem;
    font-weight: 600;
}

.announcement-badge {
    display: inline-block;
    background: #4f46e5;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.course-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    background: #f8fafc;
    border-radius: 8px;
}

.info-item i {
    color: #4f46e5;
    font-size: 1.25rem;
}

.info-content label {
    display: block;
    font-size: 0.875rem;
    color: #64748b;
    margin-bottom: 0.25rem;
}

.info-content span {
    font-weight: 500;
    color: #1a1a1a;
}

.read-more-btn {
    width: 100%;
    padding: 1rem;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    cursor: pointer;
    transition: all 0.2s;
}

.popup-footer {
    padding: 1.5rem 2rem;
    border-top: 1px solid #e2e8f0;
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

.enroll-btn, .download-btn {
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-weight: 500;
    cursor: pointer;
}

.enroll-btn {
    background: #4f46e5;
    color: white;
    border: none;
}

.download-btn {
    background: white;
    color: #4f46e5;
    border: 1px solid #4f46e5;
}

@keyframes slideIn {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}