:root {
    --bs-primary-rgb: 13, 110, 253;
    --bs-secondary-rgb: 111, 66, 193;
    --font-family-sans-serif: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
}

body {
    font-family: var(--font-family-sans-serif);
}

.hero {
    background: linear-gradient(45deg, rgba(13, 110, 253, 0.7), rgba(111, 66, 193, 0.7)), url('https://picsum.photos/1600/900') no-repeat center center;
    background-size: cover;
    color: white;
}

.navbar-brand {
    font-weight: bold;
}

.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.9);
    box-shadow: 0 2px 4px rgba(0,0,0,.04);
    transition: background-color 0.3s ease-in-out;
}

.section-icon {
    font-size: 2.5rem;
    color: var(--bs-primary);
}

.testimonial-card img {
    width: 96px;
    height: 96px;
}

.footer {
    background-color: #f8f9fa;
}