:root {
    --primary-color: #2C3E50;      
    --secondary-color: #34495E;    
    --accent-color: #3498DB;       
    --background-color: #F4F6F7;   /* Slightly softer background */
    --text-color: #2C3E50;         
    --card-bg: #FFFFFF;            
    --spacing-small: 15px;
    --spacing-medium: 30px;
    --spacing-large: 50px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

body {
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.7;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-small);
}

h1 {
    font-size: 3rem;
    font-weight: 900;
    color: var(--primary-color);
    text-align: center;
    letter-spacing: -0.03em;
    line-height: 1.2;
    margin-bottom: var(--spacing-medium);
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--secondary-color);
    text-align: center;
    margin-bottom: var(--spacing-medium);
    position: relative;
    padding-bottom: var(--spacing-small);
}

h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--accent-color);
}

.cta-button, 
.calculator-button, 
.final-cta-button {
    background: linear-gradient(135deg, var(--accent-color), var(--secondary-color));
    color: white;
    border: none;
    padding: 15px 40px;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.4s ease;
    box-shadow: 0 15px 30px rgba(52, 152, 219, 0.2);
    margin: var(--spacing-small) 0;
}

.steps, .calculator-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-medium);
    flex-wrap: wrap;
}

.step, .calculator-card {
    text-align: center;
    background-color: var(--card-bg);
    border-radius: 15px;
    padding: var(--spacing-medium);
    box-shadow: 0 10px 25px rgba(0,0,0,0.05);
    
    transition: transform 0.3s ease;
}

.step:hover, .calculator-card:hover {
    transform: translateY(-10px);
}

.step span, .calculator-card h3 {
    display: block;
    font-size: 2rem;
    color: var(--accent-color);
    margin-bottom: var(--spacing-small);
}

.steps .step p, .calculator-card p {
    margin-bottom: var(--spacing-small);
}

.calculator-card .calculator-button {
    margin-top: var(--spacing-small);
}

footer {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: var(--spacing-large) 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-small);
}

.footer-section {
    flex: 1;
    margin: 0 var(--spacing-small);
}

.footer-section h4 {
    margin-bottom: var(--spacing-small);
    font-size: 1.2rem;
}

.footer-section p {
    margin-bottom: 10px;
}

.social-icons {
    display: flex;
    gap: var(--spacing-small);
}

.social-icons a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.social-icons a:hover {
    opacity: 1;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-medium);
    border-top: 1px solid rgba(255,255,255,0.1);
}

@media screen and (max-width: 768px) {
    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-section {
        margin: var(--spacing-small) 0;
    }

    .social-icons {
        justify-content: center;
    }
    
    .steps, .calculator-grid {
        flex-direction: column;
    }

    .step, .calculator-card {
        width: 100%;
        max-width: 400px;
    }
}