.bio-container {
    max-width: 700px;
    margin: 20px auto;
    padding: 30px;
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.07);
}
.bio-container h2 {
    text-align: center;
    margin-top: 0;
}
.bio-subheading {
    text-align: center;
    color: #555;
    margin-top: -10px;
    margin-bottom: 30px;
}
.bio-error {
    background-color: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
    padding: 15px;
    border-radius: 6px;
    text-align: center;
}
.bio-upload-area {
    border: 3px dashed #ccc;
    border-radius: 8px;
    padding: 30px;
    text-align: center;
    position: relative;
    margin-bottom: 20px;
}
.bio-upload-area input[type="file"] {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    opacity: 0;
    cursor: pointer;
}
.bio-upload-area label {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #555;
    font-weight: 500;
}
.bio-upload-area svg {
    width: 50px;
    height: 43px;
    fill: #0073aa;
    margin-bottom: 15px;
}
.bio-upload-area.is-dragover {
    border-color: #0073aa;
    background-color: #f0f8ff;
}
#bio-file-list {
    margin-bottom: 20px;
}
.bio-file-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px;
    background-color: #f9f9f9;
    border: 1px solid #eee;
    border-radius: 4px;
    margin-bottom: 5px;
    font-size: 14px;
}
.bio-options {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    padding: 15px;
    background-color: #f7f7f7;
    border-radius: 6px;
}
#bio-quality {
    flex-grow: 1;
}
#bio-submit-btn {
    width: 100%;
    padding: 15px;
    font-size: 16px;
    font-weight: bold;
    color: #fff;
    background-color: #28a745;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.2s;
}
#bio-submit-btn:disabled {
    background-color: #aaa;
    cursor: not-allowed;
}
#bio-results {
    margin-top: 30px;
    border-top: 1px solid #eee;
    padding-top: 20px;
    text-align: center;
}
.bio-loader {
    border: 4px solid #f3f3f3;
    border-radius: 50%;
    border-top: 4px solid #0073aa;
    width: 40px;
    height: 40px;
    animation: bio-spin 1s linear infinite;
    margin: 0 auto 15px;
}
@keyframes bio-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
.bio-results-stats {
    margin-bottom: 20px;
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 10px;
}
.bio-download-btn {
    display: inline-block;
    padding: 12px 30px;
    background-color: #28a745;
    color: white !important;
    text-decoration: none;
    border-radius: 6px;
    font-weight: bold;
}