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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 900px;
    margin: 0 auto;
}

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

.form-header h1 {
    color: #333;
    margin-bottom: 10px;
    font-size: 28px;
}

.form-header p {
    color: #666;
    font-size: 16px;
}

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

.form-section {
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid #f0f0f0;
}

.form-section:last-of-type {
    border-bottom: none;
}

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

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

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

.form-group label {
    margin-bottom: 8px;
    color: #555;
    font-weight: 500;
    font-size: 14px;
}

.form-group input,
.form-group select {
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    font-size: 14px;
    transition: all 0.3s ease;
    outline: none;
    background-color: white;
}

.form-group input:focus,
.form-group select:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group input.error,
.form-group select.error {
    border-color: #f44336;
}

.form-group small {
    color: #999;
    font-size: 12px;
    margin-top: 4px;
}

.error-message {
    color: #f44336;
    font-size: 12px;
    margin-top: 4px;
    display: none;
}

.error-message.show {
    display: block;
}

.form-footer {
    text-align: center;
    margin-top: 30px;
}

.submit-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 15px 40px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 6px;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    position: relative;
    min-width: 200px;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.4);
}

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

.submit-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.btn-loader {
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.spinner {
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top: 3px solid white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.response-message {
    margin-top: 20px;
    padding: 20px;
    border-radius: 6px;
    text-align: center;
}

.response-message.success {
    background: #d4edda;
    color: #155724;
    border: 2px solid #c3e6cb;
}

.response-message.error {
    background: #f8d7da;
    color: #721c24;
    border: 2px solid #f5c6cb;
}

/* Asterisk for all required fields */
label[for]:after {
    content: " *";
    color: #f44336;
}

/* Responsive Design */
@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .container {
        padding: 10px;
    }
    
    .lead-form {
        padding: 20px;
    }
    
    .form-header h1 {
        font-size: 24px;
    }
}