/* Estilos del plugin */
.siu-container {
    max-width: 500px;
    margin: 20px auto;
    padding: 25px;
    background: #f8f9fa;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.siu-container h3 {
    margin-top: 0;
    color: #333;
    text-align: center;
    border-bottom: 2px solid #0073aa;
    padding-bottom: 10px;
    font-size: 22px;
}

.siu-requirements {
    background: white;
    padding: 15px;
    border-radius: 6px;
    margin-bottom: 20px;
    border-left: 4px solid #0073aa;
}

.siu-requirements p {
    margin-top: 0;
    font-size: 16px;
    color: #333;
}

.siu-requirements ul {
    margin: 10px 0 0 0;
    padding-left: 20px;
}

.siu-requirements li {
    margin-bottom: 8px;
    color: #555;
    font-size: 14px;
}

.siu-form-group {
    margin-bottom: 20px;
}

#siu-image-input {
    width: 100%;
    padding: 10px;
    border: 2px dashed #0073aa;
    border-radius: 5px;
    background: #f8fbff;
    cursor: pointer;
    font-size: 14px;
}

#siu-image-input:hover {
    background: #e8f4ff;
    border-style: solid;
}

#siu-image-input:focus {
    outline: none;
    border-style: solid;
    background: white;
}

.siu-form-group small {
    display: block;
    color: #666;
    font-size: 12px;
    margin-top: 5px;
    font-style: italic;
}

.siu-preview {
    margin: 15px 0;
    text-align: center;
}

#siu-preview-img {
    max-width: 100%;
    max-height: 250px;
    border: 1px solid #ddd;
    border-radius: 5px;
    margin-bottom: 10px;
}

#siu-file-info {
    font-size: 13px;
    color: #666;
    background: #f5f5f5;
    padding: 8px;
    border-radius: 4px;
    text-align: left;
}

#siu-submit-btn {
    background: #0073aa;
    color: white;
    border: none;
    padding: 12px 30px;
    font-size: 16px;
    border-radius: 5px;
    cursor: pointer;
    width: 100%;
    font-weight: bold;
    transition: all 0.3s;
}

#siu-submit-btn:hover:not(:disabled) {
    background: #005a87;
    transform: translateY(-2px);
    box-shadow: 0 3px 8px rgba(0,0,0,0.2);
}

#siu-submit-btn:disabled {
    background: #cccccc;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.siu-loading {
    text-align: center;
    color: #0073aa;
    font-style: italic;
    margin-top: 10px;
    font-size: 14px;
}

#siu-result {
    margin-top: 20px;
    padding: 15px;
    border-radius: 5px;
    display: none;
    font-weight: bold;
}

#siu-result.success {
    background: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
    display: block;
}

#siu-result.error {
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
    display: block;
}