:root {
    --GradientBlue: linear-gradient(180deg, rgba(0, 159, 227, 1) 0%, rgba(2, 90, 122, 1) 100%);
    --LightBlue: #E2EEFB;
    --Blue: #009FE3;
    --DarkBlue: #025A7A;
    --Black: #000000;
    --Red: #FF0000;
    --Green: #3fc57c;
    --DarkGrey: #6A6A6A;
    --LightGrey: #E3E3E3;
    --White: #FFFFFF;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.logo-container {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 20px;
    padding: 20px 0;
}

.logo {
    height: 50px;
    width: auto;
}

body {
    font-family: Arial, sans-serif;
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
    background: var(--GradientBlue);
    min-height: 100vh;
}

.container {
    background-color: var(--White);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

h1 {
    color: var(--DarkBlue);
    margin-bottom: 30px;
    text-align: center;
}

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

label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
    color: var(--DarkBlue);
}

input[type="number"] {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--LightBlue);
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.3s;
    background-color: var(--White);
}

input[type="number"]:focus {
    outline: none;
    border-color: var(--Blue);
}

input[type="password"] {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--LightBlue);
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.3s;
    background-color: var(--White);
}

input[type="password"]:focus {
    outline: none;
    border-color: var(--Blue);
}

.toggle-group {
    display: flex;
    gap: 20px;
    margin-top: 8px;
    flex-wrap: wrap;
}

.toggle-group input[type="radio"] {
    display: none;
}

.toggle-label {
    padding: 10px 20px;
    background-color: var(--LightBlue);
    border: 2px solid var(--Blue);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 500;
    text-align: center;
    min-width: 140px;
    color: var(--DarkBlue);
}

.toggle-label:hover {
    background-color: var(--Blue);
    color: var(--White);
}

.toggle-group input[type="radio"]:checked + .toggle-label {
    background: var(--Blue);
    color: var(--White);
}

small {
    color: var(--DarkBlue);
    font-size: 12px;
    display: block;
    margin-top: 8px;
}

.button-group {
    margin: 40px 0 10px 0;
}

button {
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    margin-right: 10px;
    margin-bottom: 10px;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s;
}

.btn-primary {
    background: var(--Blue);
    color: var(--White);
}

.btn-primary:hover {
    background: var(--DarkBlue);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--DarkGrey);
    color: var(--White);
}

.btn-secondary:hover {
    background-color: var(--Black);
    transform: translateY(-1px);
}

.btn-success {
    background: var(--Green);
    color: var(--White);
}

.btn-success:hover {
    background: #2ea768;
    transform: translateY(-2px);
}

.error-message {
    background-color: #FFB7B7;
    color: var(--Red);
    padding: 12px;
    border-radius: 6px;
    margin-top: 20px;
    border-left: 4px solid var(--Red);
    display: none;
}

.barcode-preview {
    margin-top: 30px;
    background-color: var(--White);
    border: 1px solid var(--Blue);
    border-radius: 8px;
    padding: 20px;
    display: none;
}

.preview-header {
    background: var(--GradientBlue);
    color: var(--White);
    padding: 15px 20px;
    margin: -20px -20px 20px -20px;
    border-radius: 8px 8px 0 0;
    font-weight: bold;
}

.barcode-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 20px;
    max-height: 500px;
    overflow-y: auto;
    padding: 10px;
}

.barcode-item {
    background: var(--LightBlue);
    padding: 15px;
    border-radius: 6px;
    text-align: center;
    border: 1px solid var(--Blue);
}

.barcode-item svg {
    width: 100%;
    height: auto;
}

.barcode-number {
    font-family: monospace;
    font-size: 12px;
    color: var(--DarkBlue);
    margin-top: 5px;
}

.stats {
    display: flex;
    justify-content: space-around;
    background: var(--GradientBlue);
    padding: 20px;
    border-radius: 6px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
    min-width: 80px;
}

.stat-number {
    font-size: 24px;
    font-weight: bold;
    color: var(--White);
    display: block;
}

.stat-label {
    font-size: 12px;
    color: var(--LightBlue);
    text-transform: uppercase;
}

@media (max-width: 768px) {
    body {
        padding: 10px;
    }

    .container {
        padding: 20px;
    }

    button {
        width: 100%;
        margin-right: 0;
    }

    .barcode-grid {
        grid-template-columns: 1fr;
    }
}

/* Consistente styling voor alle form inputs */
.form-group input[type="text"],
.form-group input[type="number"],
.form-group select {
    width: 100%;
    padding: 10px 15px;
    font-size: 16px;
    border: 2px solid #ddd;
    border-radius: 6px;
    background-color: #fff;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.form-group input[type="text"]:focus,
.form-group input[type="number"]:focus,
.form-group select:focus {
    outline: none;
    border-color: #007bff;
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.form-group select {
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-size: 20px;
    padding-right: 40px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #333;
}

.form-group small {
    display: block;
    margin-top: 5px;
    color: #666;
    font-size: 14px;
}

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

.form-group input[type="text"],
.form-group input[type="number"],
.form-group select {
    width: 100%;
    padding: 10px 15px;
    font-size: 16px;
    border: 2px solid #ddd;
    border-radius: 6px;
    background-color: #fff;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.form-group input[type="text"]:focus,
.form-group input[type="number"]:focus,
.form-group select:focus {
    outline: none;
    border-color: #007bff;
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.form-group select {
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-size: 20px;
    padding-right: 40px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #333;
}

.form-group small {
    display: block;
    margin-top: 5px;
    color: #666;
    font-size: 14px;
}

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

.info-box {
    background: #f0f8ff;
    border-left: 4px solid #007bff;
    padding: 15px 20px;
    margin-bottom: 20px;
    border-radius: 6px;
}

.info-box p {
    margin: 5px 0;
    color: #333;
}

/* Barcode explanation accordion */
.barcode-explanation {
    background: #f0f8ff;
    border: 1px solid #b3d9ff;
    border-radius: 6px;
    margin-bottom: 30px;
    overflow: hidden;
}

.accordion-header {
    background: #e3f2fd;
    padding: 15px 20px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.3s;
}

.accordion-header:hover {
    background: #d1e7fd;
}

.accordion-header h3 {
    margin: 0;
    color: #007bff;
    font-size: 18px;
}

.accordion-arrow {
    font-size: 20px;
    transition: transform 0.3s;
    color: #007bff;
}

.accordion-arrow.open {
    transform: rotate(180deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    padding: 0 20px;
}

.accordion-content.open {
    max-height: 600px;
    padding: 20px;
}

.barcode-example {
    font-family: 'Courier New', monospace;
    font-size: 24px;
    font-weight: bold;
    margin: 15px 0;
    letter-spacing: 2px;
}

.barcode-breakdown {
    display: flex;
    gap: 10px;
    margin: 15px 0;
    flex-wrap: wrap;
}

.barcode-part {
    padding: 8px 12px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-weight: bold;
}

.prefix { 
    background: #e3f2fd; 
    color: #1976d2; 
}

.store { 
    background: #f3e5f5; 
    color: #7b1fa2; 
}

.sequence { 
    background: #fff3e0; 
    color: #f57c00; 
}

.check { 
    background: #e8f5e9; 
    color: #388e3c; 
}

/* Store management styles */
.stores-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

.stores-table th,
.stores-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

.stores-table th {
    background-color: #f5f5f5;
    font-weight: bold;
}

.stores-table tr:hover {
    background-color: #f9f9f9;
}

.add-store-form {
    background: #f9f9f9;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 30px;
}

.form-row {
    display: flex;
    gap: 15px;
    align-items: flex-end;
}

.form-row .form-group {
    flex: 1;
    margin-bottom: 0;
}

.btn-delete {
    background-color: #dc3545;
    color: white;
    border: none;
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
}

.btn-delete:hover {
    background-color: #c82333;
}

.back-link {
    display: inline-block;
    margin-bottom: 20px;
    color: #007bff;
    text-decoration: none;
}

.back-link:hover {
    text-decoration: underline;
}