:root {
    --header-space: 168px;
    --header-motion: 180ms cubic-bezier(0.22, 1, 0.36, 1);
}

body {
    padding-top: var(--header-space);
    overflow-x: hidden;
}

.site-header {
    position: fixed;
    z-index: 20;
    top: 0;
    right: 0;
    left: 0;
    padding: 14px 0 0;
    border: 0;
    background: transparent;
    backdrop-filter: none;
    contain: layout paint;
    transform: translateZ(0);
}

.site-header__inner {
    position: relative;
    min-height: 0;
    padding: 12px 18px;
    border: 1px solid var(--line);
    border-radius: 24px;
    background: rgba(8, 11, 14, 0.78);
    box-shadow: var(--shadow);
    backdrop-filter: blur(10px);
    will-change: transform;
    transition: background-color var(--header-motion), border-color var(--header-motion);
}

.site-header__cluster {
    display: grid;
    flex: 1 1 auto;
    min-width: 0;
    gap: 10px;
    padding-right: 252px;
}

.brand {
    max-height: 104px;
    overflow: hidden;
    will-change: max-height, opacity, transform;
    transition: max-height var(--header-motion), opacity 140ms ease, transform 140ms ease;
}

.brand__logo {
    width: clamp(132px, 17vw, 190px);
    opacity: 0.96;
}

.site-nav {
    display: grid;
    grid-template-columns: repeat(4, minmax(108px, max-content));
    justify-content: start;
    width: fit-content;
    max-width: 100%;
    gap: 8px;
    padding: 7px;
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 20px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.02)), rgba(255, 255, 255, 0.02);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05), 0 16px 36px rgba(0, 0, 0, 0.22);
    will-change: transform;
    transition: background-color var(--header-motion), box-shadow var(--header-motion);
}

.site-nav a {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: auto auto;
    align-items: start;
    justify-items: start;
    gap: 3px;
    min-width: 108px;
    border: 1px solid transparent;
    border-radius: 14px;
    padding: 10px 14px 11px;
    color: var(--muted);
    background: transparent;
    transition: color var(--header-motion), background-color var(--header-motion), border-color var(--header-motion), transform var(--header-motion);
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
    border-color: rgba(255, 255, 255, 0.1);
    color: var(--text);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03));
}

.site-nav a:hover { transform: translateY(-1px); }

.site-nav__eyebrow,
.site-nav__label,
.site-nav__compact-label { grid-column: 1; }

.site-nav__eyebrow {
    grid-row: 1;
    color: rgba(161, 173, 182, 0.76);
    font-size: 0.56rem;
    font-weight: 850;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    transition: max-height var(--header-motion), opacity var(--header-motion), transform var(--header-motion);
}

.site-nav a[aria-current="page"] .site-nav__eyebrow { color: var(--lime); }

.site-nav__label,
.site-nav__compact-label {
    grid-row: 2;
    font-size: 0.9rem;
    font-weight: 760;
    letter-spacing: -0.02em;
    transition: opacity var(--header-motion), transform var(--header-motion), font-size var(--header-motion);
}

.site-nav__compact-label { opacity: 0; transform: translateY(7px); }

.site-header__status {
    position: absolute;
    top: 12px;
    right: 18px;
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: center;
    gap: 12px;
    min-width: 204px;
    max-width: 236px;
    overflow: hidden;
    padding: 12px 14px;
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 18px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.025));
    will-change: opacity, transform;
    transition: opacity 140ms ease, transform 140ms ease;
}

.site-header__status-dot {
    width: 11px;
    height: 11px;
    border-radius: 50%;
    background: var(--lime);
    box-shadow: 0 0 0 6px rgba(199, 255, 77, 0.12);
}

.site-header__status strong,
.site-header__status small { display: block; white-space: nowrap; }
.site-header__status strong { font-size: 0.88rem; }
.site-header__status small { margin-top: 2px; color: var(--muted); font-size: 0.7rem; }

.site-header.is-condensed { padding-top: 8px; }
.site-header.is-condensed .site-header__inner { justify-content: center; padding: 10px 14px; border-radius: 18px; background: rgba(8, 11, 14, 0.9); box-shadow: 0 18px 44px rgba(0, 0, 0, 0.28); }
.site-header.is-condensed .site-header__cluster { padding-right: 0; }
.site-header.is-condensed .brand { max-height: 0; opacity: 0; transform: translateY(-8px); pointer-events: none; }
.site-header.is-condensed .site-header__status { opacity: 0; transform: translateY(-8px); pointer-events: none; }
.site-header.is-condensed .site-nav { grid-template-columns: repeat(4, minmax(0, 1fr)); width: min(100%, 650px); margin-inline: auto; gap: 6px; padding: 5px; border-radius: 16px; }
.site-header.is-condensed .site-nav a { min-width: 0; justify-items: center; padding: 7px 10px 8px; text-align: center; }
.site-header.is-condensed .site-nav__eyebrow { max-height: 0; opacity: 0; transform: translateY(-6px); }
.site-header.is-condensed .site-nav__label { opacity: 0; transform: translateY(-6px); }
.site-header.is-condensed .site-nav__compact-label { opacity: 1; transform: translateY(0); }

@media (max-width: 820px) {
    :root { --header-space: 232px; }
    .site-header { padding-top: 10px; }
    .site-header__inner { position: relative; display: block; padding: 12px; }
    .site-header__cluster { padding-right: 118px; }
    .site-header__status { position: absolute; top: 12px; right: 12px; min-width: 106px; max-width: 106px; gap: 5px; padding: 8px; border-radius: 13px; }
    .site-header__status-dot { display: none; }
    .site-header__status strong { white-space: normal; font-size: 0.72rem; line-height: 1.1; }
    .site-header__status small { white-space: normal; font-size: 0.56rem; line-height: 1.25; }
    .site-nav { grid-template-columns: repeat(2, minmax(0, 1fr)); width: 100%; }
    .site-nav a { min-width: 0; }
    .site-header.is-condensed .site-header__cluster { padding-right: 0; }
    .site-header.is-condensed .site-header__inner { padding: 10px; }
    .site-header.is-condensed .site-nav { width: 100%; gap: 4px; padding: 4px; }
    .site-header.is-condensed .site-nav a { padding: 7px 5px; }
}

@media (max-width: 480px) {
    .site-nav__eyebrow { font-size: 0.48rem; }
    .site-nav__label,
    .site-nav__compact-label { font-size: 0.76rem; }
    .site-header.is-condensed .site-nav__compact-label { font-size: 0.68rem; }
}

@media (prefers-reduced-motion: reduce) {
    body,
    .site-header,
    .site-header *,
    .site-nav * { transition: none !important; }
}