:root {
    --primary-color: #4A90E2;
    --secondary-color: #50E3C2;
    --background-color: #F8F9FA;
    --surface-color: #FFFFFF;
    --text-color: #212529;
    --heading-font: 'Poppins', sans-serif;
    --body-font: 'Lato', sans-serif;
    --border-radius: 0.3rem;
}

body {
    font-family: var(--body-font);
    background-color: var(--background-color);
    color: var(--text-color);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--heading-font);
    font-weight: 700;
}

.navbar {
    transition: background-color 0.3s ease-in-out, padding 0.3s ease-in-out;
}

.navbar-scrolled {
    background-color: var(--surface-color);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    opacity: 0.9;
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-secondary {
    background-color: transparent;
    border-color: white;
    color: white;
}

.btn-secondary:hover {
    background-color: white;
    border-color: white;
    color: var(--primary-color);
}

section {
    padding: 5rem 0;
}

.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    transition: transform 0.2s ease-in-out;
}

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

.form-control:focus {
    box-shadow: 0 0 0 0.25rem rgba(74, 144, 226, 0.25);
    border-color: var(--primary-color);
}

.footer {
    background-color: var(--text-color);
    color: var(--background-color);
}