:root {
    --bs-primary: #0d6efd;
    --bs-secondary: #6c757d;
}

body {
    font-family: 'Roboto', sans-serif;
    overflow-x: hidden;
}

.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,.1);
}

.navbar-brand {
    font-weight: 500;
    font-size: 1.5rem;
}

.nav-link i {
    transition: transform 0.3s ease;
}

.nav-link:hover i {
    transform: scale(1.2);
}

.hero {
    background-color: #ffffff;
    padding-top: 80px;
}

.hero img {
    border: 3px solid var(--bs-primary);
    padding: 5px;
    transition: transform 0.3s ease;
}

.hero img:hover {
    transform: scale(1.05);
}

.certificates {
    background-color: #f8f9fa;
}

.card {
    border: none;
    box-shadow: 0 4px 6px rgba(0,0,0,.1);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0,0,0,.15);
}

.card img {
    height: 200px;
    object-fit: contain;
    padding: 1rem;
}

.card .btn-outline-primary {
    border-radius: 25px;
    padding: 8px 20px;
    font-weight: 500;
}

.card .btn-outline-primary:hover {
    background-color: var(--bs-primary);
    color: white;
    transform: translateY(-2px);
}

.fade-in {
    animation: fadeIn 1s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
.hover-effect {
    transition: all 0.3s ease;
    padding: 10px;
    border-radius: 5px;
}

.hover-effect:hover {
    background-color: rgba(0, 0, 0, 0.05);
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}