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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #003DA5 0%, #0056B3 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

header {
    background: linear-gradient(135deg, #003DA5 0%, #0056B3 100%);
    color: white;
    padding: 30px;
    text-align: center;
}

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

.subtitle {
    font-size: 1.1em;
    opacity: 0.9;
}

main {
    padding: 30px;
}

.form-section {
    margin-bottom: 30px;
    padding: 25px;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 4px solid #003DA5;
}

.form-section h2 {
    color: #333;
    margin-bottom: 20px;
    font-size: 1.5em;
    border-bottom: 2px solid #667eea;
    padding-bottom: 10px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #555;
    font-weight: 600;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-size: 1em;
    transition: border-color 0.3s;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

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

.target {
    display: block;
    margin-top: 5px;
    font-size: 0.9em;
    color: #667eea;
    font-weight: 600;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.button-group {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 30px;
}

.btn {
    padding: 15px 30px;
    border: none;
    border-radius: 5px;
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background: #5a6268;
    transform: translateY(-2px);
}

.results-section {
    margin-top: 40px;
    padding: 30px;
    background: #f8f9fa;
    border-radius: 8px;
    border: 2px solid #667eea;
}

.results-section h2 {
    color: #333;
    margin-bottom: 20px;
    font-size: 2em;
    text-align: center;
}

.metrics-summary {
    margin-bottom: 30px;
}

.metrics-summary h3 {
    color: #667eea;
    margin-bottom: 15px;
    font-size: 1.3em;
}

.summary-list {
    background: white;
    padding: 20px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.summary-list h4 {
    margin-bottom: 10px;
    color: #333;
}

.summary-list ul {
    list-style-position: inside;
    line-height: 1.8;
}

.strength {
    color: #28a745;
    font-weight: 600;
}

.improvement {
    color: #dc3545;
    font-weight: 600;
}

.neutral {
    color: #ffc107;
    font-weight: 600;
}

.review-output {
    margin-bottom: 30px;
}

.review-output h3 {
    color: #667eea;
    margin-bottom: 15px;
    font-size: 1.3em;
}

.review-text {
    background: white;
    padding: 25px;
    border-radius: 5px;
    line-height: 1.8;
    font-size: 1.1em;
    color: #333;
    border-left: 4px solid #667eea;
}

footer {
    background: #333;
    color: white;
    text-align: center;
    padding: 20px;
    margin-top: 20px;
}

@media (max-width: 768px) {
    .metrics-grid {
        grid-template-columns: 1fr;
    }
    
    .button-group {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
}