/* Sticky site header, primary nav and the mobile hamburger menu.
   Load order: 2nd of 5 — base, header, content, footer, responsive.
*/

/* Header */
header {
    background-color: var(--text-light);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo img {
    height: 58px;
    width: 58px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    font-weight: 500;
    color: var(--text-dark);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--accent);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

/* Both only appear below 768px */
.nav-cta,
.hamburger {
    display: none;
}