/* 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;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    border-radius: 15px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

/* Navigation links */
.nav-links {
    text-align: center;
    margin-bottom: 20px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 10px;
}

.nav-links a {
    display: inline-block;
    margin: 0 15px;
    padding: 10px 20px;
    background: #3498db;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.nav-links a:hover {
    background: #2980b9;
    transform: translateY(-2px);
}

.nav-links a.active {
    background: #2c3e50;
}

/* Header styles */
.header {
    background: linear-gradient(135deg, #2c3e50 0%, #3498db 100%);
    color: white;
    padding: 40px 30px;
    text-align: center;
}

.logo {
    margin-bottom: 20px;
}

.logo-img {
    max-width: 120px;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.header h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.description {
    font-size: 1.1rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
}

/* Alert messages */
.alert {
    padding: 15px 30px;
    margin: 20px 30px;
    border-radius: 8px;
    font-weight: 500;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Form styles */
.survey-form {
    padding: 40px 30px;
}

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

@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

.form-group {
    margin-bottom: 30px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #2c3e50;
    font-size: 1.1rem;
}

.form-group input[type="text"],
.form-group input[type="tel"],
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid #e1e8ed;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background-color: #f8f9fa;
}

.form-group input[type="text"]:focus,
.form-group input[type="tel"]:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3498db;
    background-color: white;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* Vote options */
.vote-options {
    display: grid;
    gap: 15px;
    margin-top: 10px;
}

.vote-option {
    display: flex;
    align-items: center;
    padding: 20px;
    border: 2px solid #e1e8ed;
    border-radius: 10px;
    background-color: #f8f9fa;
    transition: all 0.3s ease;
    cursor: pointer;
}

.vote-option:hover {
    border-color: #3498db;
    background-color: #e3f2fd;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.vote-option input[type="radio"] {
    margin-right: 15px;
    transform: scale(1.2);
    accent-color: #3498db;
}

.vote-option input[type="radio"]:checked + label {
    color: #2c3e50;
    font-weight: 600;
}

.vote-option:has(input[type="radio"]:checked) {
    border-color: #3498db;
    background-color: #e3f2fd;
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.2);
}

.vote-option label {
    cursor: pointer;
    margin: 0;
    font-size: 1.1rem;
    flex: 1;
}

/* Submit button */
.submit-btn {
    width: 100%;
    padding: 18px;
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1.2rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 20px;
}

.submit-btn:hover {
    background: linear-gradient(135deg, #2980b9 0%, #1f5f8b 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(52, 152, 219, 0.3);
}

.submit-btn:active {
    transform: translateY(0);
}

/* Footer */
.footer {
    background-color: #2c3e50;
    color: white;
    text-align: center;
    padding: 20px;
    font-size: 0.9rem;
}

/* Responsive design */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }
    
    .container {
        border-radius: 10px;
    }
    
    .header {
        padding: 30px 20px;
    }
    
    .header h1 {
        font-size: 2rem;
    }
    
    .description {
        font-size: 1rem;
    }
    
    .survey-form {
        padding: 30px 20px;
    }
    
    .vote-option {
        padding: 15px;
    }
    
    .vote-option label {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .header h1 {
        font-size: 1.8rem;
    }
    
    .logo-img {
        max-width: 100px;
    }
    
    .vote-options {
        gap: 10px;
    }
    
    .vote-option {
        padding: 12px;
    }
}