/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

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

/* Header */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 2rem 0;
    text-align: center;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.header-content h1 {
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.header-content h1 i {
    color: #3498db;
    margin-right: 0.5rem;
}

.header-content p {
    font-size: 1.1rem;
    color: #7f8c8d;
    font-weight: 300;
}

/* Main content */
.main-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

/* Form container */
.form-container {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.form-section {
    margin-bottom: 2rem;
}

.form-section h2 {
    color: #2c3e50;
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
    border-bottom: 2px solid #3498db;
    padding-bottom: 0.5rem;
}

.form-section h2 i {
    color: #3498db;
    margin-right: 0.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.form-group label i {
    color: #3498db;
    margin-right: 0.3rem;
    width: 16px;
}

.form-group input,
.form-group select {
    padding: 0.75rem;
    border: 2px solid #e1e8ed;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: white;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.form-group small {
    color: #7f8c8d;
    font-size: 0.8rem;
    margin-top: 0.3rem;
    font-style: italic;
}

/* Form actions */
.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.btn-primary,
.btn-secondary {
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #2980b9, #1f5f8b);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.3);
}

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

.btn-secondary:hover {
    background: #7f8c8d;
    transform: translateY(-2px);
}

/* Results */
.results {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    animation: slideIn 0.5s ease-out;
}

.results.hidden {
    display: none;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    border-bottom: 2px solid #3498db;
    padding-bottom: 1rem;
}

.results-header h2 {
    color: #2c3e50;
    font-size: 1.5rem;
}

.close-btn {
    background: #e74c3c;
    color: white;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.close-btn:hover {
    background: #c0392b;
    transform: scale(1.1);
}

.score-display {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.score-item {
    text-align: center;
    padding: 1.5rem;
    border-radius: 10px;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.score-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.score-item.main-score {
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white;
    border-color: #2980b9;
}

.score-label {
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.score-value {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.prob-value {
    font-size: 2rem;
    font-weight: 700;
    color: #e74c3c;
}

.risk-value {
    font-size: 1.5rem;
    font-weight: 700;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    display: inline-block;
}

.risk-value:contains("Low Risk") {
    background: #27ae60;
    color: white;
}

.risk-value:contains("Medium Risk") {
    background: #f39c12;
    color: white;
}

.risk-value:contains("High Risk") {
    background: #e74c3c;
    color: white;
}

.score-description {
    font-size: 0.8rem;
    color: #7f8c8d;
    font-style: italic;
}

.result-message {
    text-align: center;
    color: #7f8c8d;
    font-style: italic;
}

/* Loading */
.loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.loading.hidden {
    display: none;
}

.loading-spinner {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.loading-spinner i {
    font-size: 2rem;
    color: #3498db;
    margin-bottom: 1rem;
}

.loading-spinner p {
    color: #2c3e50;
    font-weight: 600;
}

/* Footer */
.footer {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 2rem 0;
    text-align: center;
    box-shadow: 0 -2px 20px rgba(0, 0, 0, 0.1);
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: #3498db;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #2980b9;
}

.footer-links a i {
    margin-right: 0.3rem;
}

/* Animations */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive design */
@media (max-width: 768px) {
    .container {
        padding: 0 10px;
    }
    
    .header-content h1 {
        font-size: 2rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .form-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100%;
        max-width: 300px;
    }
    
    .score-display {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .form-container,
    .results {
        padding: 1rem;
    }
    
    .header {
        padding: 1rem 0;
    }
    
    .header-content h1 {
        font-size: 1.5rem;
    }
    
    .score-value {
        font-size: 2rem;
    }
    
    .prob-value {
        font-size: 1.5rem;
    }
}