header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;

    background: var(--black-0-60);
    backdrop-filter: var(--blur);
    border-bottom: 1px solid var(--black-400);
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 0;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 220px;
}

.brand-mark {
    width: 38px;
    height: 38px;
    border: 1px solid var(--black-1000);
    border-radius: 14px;
    display: grid;
    place-items: center;
    background: linear-gradient(180deg, var(--bg), var(--black-200));
    box-shadow: 0 6px 18px var(--black-300);
}

.brand-name {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.brand-name strong {
    font-family: var(--serif);
    letter-spacing: .2px;
    font-size: 18px;
}

.brand-name span {
    font-size: 12px;
    color: var(--black-700);
    letter-spacing: .2px;
}

nav {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.navlink {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 999px;
    border: 1px solid var(--transparent);
    color: var(--black-1000);
    font-size: 13px;
    letter-spacing: .2px;
    background:  var(--transparent);
    transition: all 0.5s;
}

.navlink:hover {
    border-color: var(--black-400);
    background: var(--bg);
}

.navlink .dot {
    width: 6px;
    height: 6px;
    border-radius: 99px;
    background: var(--black-1000);
    opacity: .9;
}

.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 999px;
    border: 1px solid var(--black-1000);
    background: var(--black-1000);
    color: var(--bg);
    font-size: 13px;
    letter-spacing: .2px;
    box-shadow: 0 10px 26px var(--black-400);
    white-space: nowrap;
}

.nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 14px 34px var(--black-450);
}