.doc-card {
    height: 300px;
    border-radius: 8px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 20px;
    background: white;
    transition: transform 0.3s ease;
}

.doc-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.doc-content {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.pdf-preview {
    width: 100%;
    height: 100%;
    background: #f8f9fa;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pdf-canvas {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.action-buttons {
    position: absolute;
    top: 10px;
    left: 10px;
    display: flex;
    gap: 10px;
    z-index: 10;
}

.action-btn {
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    text-decoration: none;
}

.action-btn:hover {
    background: white;
    transform: translateY(-2px);
}

.download-action svg {
    color: #2ecc71;
}

.fullscreen-action svg {
    color: #3498db;
}

.doc-title {
    position: absolute;
    top: 10px;
    right: 10px;
    background: #0b1038;
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-weight: bold;
}