/* Global Variables */
:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --text-color: #333;
    --light-gray: #f8f9fa;
    --section-1-bg: #f6f9fc;
    --section-2-bg: #ffffff;
    --section-3-bg: #eef4f8;
    --section-4-bg: #f9f9f9;
    --card-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

/* Global Styles */
body {
    font-family: 'Inter', 'Segoe UI', sans-serif;
    color: var(--text-color);
    line-height: 1.8;
    margin: 0;
    padding: 0;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Inter', sans-serif;
    margin-bottom: 2rem;
    line-height: 1.2;
}

h1 {
    font-size: 4.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 3.5rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

h3 {
    font-size: 2rem;
    font-weight: 600;
}

/* Common Components */
.card {
    background: white;
    border-radius: 20px;
    padding: 2.5rem;
    margin-bottom: 2rem;
    box-shadow: var(--card-shadow);
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 768px) {
    h1 {
        font-size: 3rem;
    }
    
    h2 {
        font-size: 2.5rem;
    }
    
    h3 {
        font-size: 2.1rem;
    }

    p {
        font-size: 1.9em;
    }
    
    .card {
        padding: 1.5rem;
    }
} 