/* Main Container */
.mupn-container {
    font-family: 'Roboto', 'Segoe UI', Arial, sans-serif;
    background-color: #ffffff;
    border-radius: 8px;
    padding: 24px;
    max-width: 500px;
    margin: 20px auto;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border: 1px solid #e0e0e0;
}

/* Status Messages */
#mupn-status p {
    margin: 0 0 16px 0;
    padding: 12px;
    border-radius: 4px;
    border: 1px solid transparent;
}

#mupn-status p[style*="color: green"] {
    background-color: #e8f5e9;
    border-color: #a5d6a7;
    color: #2e7d32;
}

#mupn-status p[style*="color: red"] {
    background-color: #ffebee;
    border-color: #ef9a9a;
    color: #c62828;
}

/* Categories Section */
.mupn-categories h4 {
    margin-top: 0;
    margin-bottom: 16px;
    color: #333;
    font-size: 18px;
    font-weight: 500;
}

.mupn-categories {
    margin-bottom: 24px;
}

/* Custom Checkbox Styling */
.mupn-checkbox-label {
    display: flex;
    align-items: center;
    margin-bottom: 12px;
    cursor: pointer;
    font-size: 16px;
    color: #444;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.mupn-checkbox-label input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.mupn-checkbox-label span {
    padding-left: 35px;
    position: relative;
    transition: color 0.2s;
}

.mupn-checkbox-label span:before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    height: 20px;
    width: 20px;
    background-color: #eee;
    border: 1px solid #ccc;
    border-radius: 4px;
    transition: background-color 0.2s, border-color 0.2s;
}

.mupn-checkbox-label:hover span:before {
    border-color: #4285F4;
}

.mupn-checkbox-label input:checked ~ span {
    color: #1a73e8;
}

.mupn-checkbox-label input:checked ~ span:before {
    background-color: #4285F4;
    border-color: #4285F4;
}

.mupn-checkbox-label span:after {
    content: "";
    position: absolute;
    display: none;
    left: 7px;
    top: 2px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 3px 3px 0;
    transform: rotate(45deg);
}

.mupn-checkbox-label input:checked ~ span:after {
    display: block;
}

/* Buttons */
.mupn-actions {
    display: flex;
    gap: 12px;
}

.mupn-button {
    border: none;
    border-radius: 4px;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: background-color 0.2s, box-shadow 0.2s;
}

.mupn-button-primary {
    background-color: #1a73e8;
    color: white;
}

.mupn-button-primary:hover {
    background-color: #1765cc;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.mupn-button-secondary {
    background-color: #f1f3f4;
    color: #5f6368;
    border: 1px solid #dadce0;
}

.mupn-button-secondary:hover {
    background-color: #e8eaed;
    border-color: #c6cace;
}