:root {
    --primary-color: #0056b3;
    --accent-color: #fbff00;
    --dark-bg: #1a1a1a;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8f9fa;
}
.navbar {
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}
.prima {
    background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), url("robo.png");
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 50px 0;
    color: white;
    flex-direction: column;
    padding: 60px 0;
    margin-bottom: 0 !important;
}
.hero-card {
    background: rgba(0, 0, 0, 0.75);
    border: 2px solid var(--accent-color);
    border-radius: 20px;
    padding: 3rem;
    backdrop-filter: blur(5px);
}
.card-study {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: none;
    border-radius: 15px;
    background: white;
    height: 100%;
}
.card-study:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}
footer {
    background-color: #222;
    color: #ddd;
    padding: 40px 0;
    margin-top: 0 !important;
    border-top: none;
}
footer a {
    margin: 0 !important;
    font-size: inherit !important;
}
.social-icons a {
    text-decoration: none !important;
    transition: transform 0.2s ease;
    display: inline-block;
}
.social-icons a:hover {
    transform: scale(1.2);
}