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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 40px;
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

header h1 {
    color: #2c3e50;
    margin-bottom: 10px;
    font-size: 2.5em;
}

header p {
    color: #7f8c8d;
    font-size: 1.2em;
}

main {
    display: grid;
    gap: 30px;
}

.input-section {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.input-section h2 {
    margin-bottom: 20px;
    color: #2c3e50;
}

#innInput {
    width: 100%;
    padding: 15px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 16px;
    font-family: monospace;
    resize: vertical;
    min-height: 200px;
}

#innInput:focus {
    outline: none;
    border-color: #3498db;
}

.button-group {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
}

.btn-primary {
    background-color: #3498db;
    color: white;
}

.btn-primary:hover {
    background-color: #2980b9;
}

.btn-secondary {
    background-color: #95a5a6;
    color: white;
}

.btn-secondary:hover {
    background-color: #7f8c8d;
}

.btn-export {
    background-color: #27ae60;
    color: white;
    font-size: 14px;
    padding: 8px 16px;
}

.btn-export:hover {
    background-color: #229954;
}

.results-section {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.results-section h2 {
    margin-bottom: 20px;
    color: #2c3e50;
}

.summary {
    display: flex;
    gap: 30px;
    margin-bottom: 20px;
    padding: 20px;
    background-color: #ecf0f1;
    border-radius: 8px;
}

.summary-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.summary-item .label {
    font-size: 14px;
    color: #7f8c8d;
    margin-bottom: 5px;
}

.summary-item span:last-child {
    font-size: 24px;
    font-weight: bold;
    color: #2c3e50;
}

.export-buttons {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.results-tabs {
    display: flex;
    border-bottom: 2px solid #ecf0f1;
    margin-bottom: 20px;
}

.tab-btn {
    padding: 12px 24px;
    border: none;
    background: none;
    cursor: pointer;
    font-size: 16px;
    color: #7f8c8d;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
}

.tab-btn.active {
    color: #3498db;
    border-bottom-color: #3498db;
}

.tab-btn:hover {
    color: #2980b9;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

.manufacturers-list h3 {
    margin-bottom: 15px;
    color: #27ae60;
}

#manufacturersList {
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    font-family: monospace;
    font-size: 16px;
    line-height: 1.8;
    white-space: pre-wrap;
    border-left: 4px solid #27ae60;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}

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

th {
    background-color: #f8f9fa;
    font-weight: 600;
    color: #2c3e50;
}

tr:hover {
    background-color: #f8f9fa;
}

.manufacturer-yes {
    color: #27ae60;
    font-weight: bold;
}

.manufacturer-no {
    color: #e74c3c;
}

.loading {
    text-align: center;
    padding: 40px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #3498db;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.error {
    background-color: #e74c3c;
    color: white;
    padding: 20px;
    border-radius: 8px;
    margin: 20px 0;
}

footer {
    text-align: center;
    margin-top: 40px;
    padding: 20px;
    color: #7f8c8d;
    font-size: 14px;
}

@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    header h1 {
        font-size: 2em;
    }
    
    .summary {
        flex-direction: column;
        gap: 15px;
    }
    
    .button-group {
        flex-direction: column;
    }
    
    .export-buttons {
        justify-content: center;
    }
    
    table {
        font-size: 14px;
    }
    
    th, td {
        padding: 8px;
    }
}