body {
    background-color: #f5f5f5;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    padding: 20px 0;
}

.download-card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s, box-shadow 0.2s;
    background-color: #ffffff;
    min-height: 280px;
    display: flex;
    align-items: center;
}

.download-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.bg-dark-blue {
    background-color: #091a18 !important;
}

.container {
    position: relative;
    border-radius: 20px;
    padding: 2rem;
    background-color: transparent;
}

.container::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 20px;
    padding: 4px;
    background: conic-gradient(from 0deg, #28a745, #20c997, #17a2b8, #28a745, #20c997, #17a2b8, #28a745);
    -webkit-mask: 
        linear-gradient(#fff 0 0) content-box, 
        linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask: 
        linear-gradient(#fff 0 0) content-box, 
        linear-gradient(#fff 0 0);
    mask-composite: exclude;
   
    z-index: -1;
}

.card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 0 15px rgba(40, 167, 69, 0.9), 0 2px 8px rgba(0, 0, 0, 0.3);
    transition: transform 0.2s, box-shadow 0.2s;
    background-color: #ffffff;
    display: flex;
    align-items: center;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 0 25px rgba(40, 167, 69, 0.6), 0 4px 12px rgba(0, 0, 0, 0.15);
}

.card-body {
    padding: 2rem 1.5rem;
    width: 100%;
}

.icon-wrapper {
    margin-bottom: 1rem;
}

.icon-green {
    font-size: 3rem;
    color: #28a745;
}

.icon-image {
    width: 3rem;
    height: 3rem;
    object-fit: contain;
}

.card-title {
    font-weight: 700;
    color: #333;
    font-size: 1.1rem;
    margin-bottom: 0;
}

.btn-download {
    background-color: #28a745;
    color: white;
    border: none;
    border-radius: 6px;
    padding: 10px 24px;
    font-weight: 500;
    transition: background-color 0.2s;
    width: 100%;
    max-width: 200px;
}

.btn-download:hover {
    background-color: #218838;
    color: white;
}

.btn-download:active {
    background-color: #1e7e34;
    color: white;
}

.file-size {
    color: #6c757d;
    font-size: 0.9rem;
    margin-top: 0.5rem;
    margin-bottom: 0;
    font-weight: bold;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .download-card {
        min-height: 250px;
    }
    
    .card {
        min-height: 250px;
    }
    
    .icon-green {
        font-size: 2.5rem;
    }
}