header {
    background: var(--white);
    padding: 1rem 0;
    border-bottom: 1px solid var(--light-gray);
    position: sticky;
    top: 0;
    z-index: 100;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    height: 60px;
}

header nav ul {
    list-style: none;
    display: flex;
}

header nav ul li {
    margin-left: 2rem;
}

header nav ul li a {
    text-decoration: none;
    color: var(--dark-gray);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

header nav ul li a:hover {
    color: var(--alpine-blue);
}

header.header {
    background: var(--white);
    border-bottom: 2px solid var(--alpine-blue);
    padding: 0;
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 0;
}
.logo-link .logo {
    height: 60px;
    width: auto;
}
nav ul {
    display: flex;
    gap: 24px;
}
nav ul li a {
    color: var(--dark-gray);
    font-weight: 500;
    font-size: 17px;
    padding: 6px 12px;
    border-radius: 4px;
    transition: background 0.2s, color 0.2s;
}
nav ul li a:hover {
    background: var(--alpine-blue);
    color: #fff;
}
.btn.btn-primary {
    background: var(--alpine-blue);
    color: #fff;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    font-weight: 700;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.2s;
    text-decoration: none;
    margin-left: 18px;
}
.btn.btn-primary:hover {
    background: var(--alpine-blue-dark);
}
@media (max-width: 700px) {
    .header-container {
        flex-direction: column;
        gap: 12px;
    }
    nav ul {
        flex-direction: column;
        gap: 10px;
    }
}