@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;600;800&display=swap');

:root {
    --iuta-blue: #001f54;
    --iuta-gold: #b8860b;
}

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 50%, #dbeafe 100%);
}

/* CAPA DE FONDO RESPONSIVE */
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('background-lines.svg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.08;
    z-index: 0;
    pointer-events: none;
}

.iuta-blue { background-color: var(--iuta-blue); }
.iuta-text-blue { color: var(--iuta-blue); }
.iuta-gold { color: var(--iuta-gold); }

/* ICONOS SOCIALES MEJORADOS */
.social-icon {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    color: var(--iuta-blue);
}

.social-icon i {
    font-size: 1rem;
}

@media (min-width: 768px) {
    .social-icon i { font-size: 1.2rem; }
}

.social-icon:hover {
    transform: translateY(-5px);
    background-color: var(--iuta-blue);
    color: white !important;
    box-shadow: 0 10px 15px -3px rgba(0, 31, 84, 0.3);
}

/* EFECTOS DEL BOTÓN PLAY */
#masterPlay i {
    filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.2));
}

#masterPlay:active i {
    transform: scale(0.9);
}