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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    border-radius: 15px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    overflow: hidden;
}

header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 30px;
    text-align: center;
}

header h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
}

.subtitle {
    font-size: 1.2em;
    opacity: 0.9;
}

.main-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 30px;
    padding: 40px;
}

.form-section, .info-section {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 10px;
    border: 1px solid #e9ecef;
}

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

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

textarea, input, select {
    width: 100%;
    padding: 12px;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s;
}

textarea:focus, input:focus, select:focus {
    outline: none;
    border-color: #667eea;
}

textarea {
    resize: vertical;
    font-family: monospace;
}

.submit-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 15px 30px;
    font-size: 18px;
    border-radius: 8px;
    cursor: pointer;
    width: 100%;
    transition: transform 0.2s;
}

.submit-btn:hover {
    transform: translateY(-2px);
}

.info-section h3 {
    margin-bottom: 20px;
    color: #333;
}

.info-section ul {
    list-style: none;
    margin-bottom: 30px;
}

.info-section li {
    padding: 8px 0;
    border-bottom: 1px solid #e9ecef;
}

.stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.stat-item {
    text-align: center;
    padding: 15px;
    background: white;
    border-radius: 8px;
    border: 1px solid #e9ecef;
}

.stat-number {
    display: block;
    font-size: 2em;
    font-weight: bold;
    color: #667eea;
}

.stat-label {
    font-size: 0.9em;
    color: #666;
}

.results-section {
    padding: 30px;
    border-top: 1px solid #e9ecef;
}

.result-item {
    padding: 15px;
    margin: 10px 0;
    border-radius: 8px;
    border-left: 4px solid #28a745;
}

.result-item.error {
    border-left-color: #dc3545;
    background: #f8d7da;
}

.result-item.success {
    border-left-color: #28a745;
    background: #d4edda;
}

@media (max-width: 768px) {
    .main-content {
        grid-template-columns: 1fr;
    }
    
    header h1 {
        font-size: 2em;
    }
}