.doc-header-banner {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: #ffffff;
    padding: 40px 30px;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(30, 60, 114, 0.2);
    margin-bottom: 35px;
    position: relative;
    overflow: hidden;
}
.doc-header-banner::after {
    content: "\f07c";
    font-family: "Font Awesome 5 Free";
    font-weight: 900;
    position: absolute;
    right: 20px;
    bottom: -20px;
    font-size: 140px;
    color: rgba(255, 255, 255, 0.08);
    pointer-events: none;
}
.doc-share-container {
    background: #ffffff;
    border-top: 4px solid #007bff;
    border-radius: 12px;
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.07);
    padding: 35px;
    margin-bottom: 45px;
    transition: all 0.3s ease;
}
.doc-share-container:hover {
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}
.dropzone-custom {
    border: 2px dashed #007bff;
    border-radius: 10px;
    background-color: #f8fbff;
    padding: 30px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}
.dropzone-custom:hover {
    background-color: #eef6ff;
    border-color: #0056b3;
    transform: translateY(-2px);
}
.dropzone-custom.dragover {
    background-color: #d8ebff;
    border-color: #004085;
    transform: scale(1.01);
}
.format-badge-box {
    display: inline-flex;
    align-items: center;
    padding: 8px 16px;
    border-radius: 30px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-right: 8px;
    margin-bottom: 8px;
    box-shadow: 0 3px 8px rgba(0,0,0,0.06);
    transition: all 0.2s ease;
}
.format-badge-box:hover {
    transform: translateY(-2px);
}
.doc-card {
    background: #ffffff;
    border: 1px solid #eaeaea;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.04);
    transition: all 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.doc-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 25px rgba(0,0,0,0.1);
    border-color: #d1d1d1;
}
.doc-card-body {
    padding: 22px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.doc-icon-wrapper {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 15px;
}
.filter-btn {
    border-radius: 20px;
    padding: 6px 18px;
    font-weight: 600;
    margin-right: 8px;
    margin-bottom: 10px;
    transition: all 0.2s;
}