/* Header & Navigation */
header {
    background-color: #19245b;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.main-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 5%;
    max-width: 1200px;
    margin: 0 auto;
    height: 70px; /* Fixed height for header */
}

.logo {
    display: flex;
    align-items: center;
}

.logo a {
    color: #fff;
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: bold;
    display: flex;
    align-items: center;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    margin: 0;
    padding: 0;
    height: 100%;
}

.nav-links a {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    font-size: 1.1rem; /* Increased font size */
    transition: color 0.3s;
    position: relative;
    padding: 0;
    height: 100%;
    display: flex;
    align-items: center;
}

.nav-links a::after {
    content: "";
    display: block;
    height: 3px;
    background: #00E5FF;
    position: absolute;
    left: 0;
    right: 0;
    bottom: -13px;
    opacity: 0;
    transition: opacity 0.2s;
    border-radius: 2px;
    box-shadow: 0 0 8px rgba(0, 229, 255, 0.5);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    opacity: 1;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    /* Add padding to main content to account for bottom nav */
}