.header {
    position: relative;
    height: 84px;
    z-index: 52;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 0 24px;
    color: var(--fg-3);
    font-size: 12px;
    text-transform: lowercase;
}

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

.brand-lockup {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    transform: translateX(12px);
    background: transparent;
    border: 0;
    padding: 0;
    color: inherit;
    font: inherit;
    letter-spacing: inherit;
    outline: none;
}

.brand-logo {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    flex-shrink: 0;
}

.logo-eclipse {
    position: absolute;
    inset: 0;
    display: block;
    border-radius: 50%;
    box-sizing: border-box;
    border: 1.5px solid rgba(230, 230, 232, 0.92);
    background: transparent;
    box-shadow:
        0 0 6px rgba(255, 255, 255, 0.45),
        0 0 18px rgba(245, 245, 247, 0.35),
        0 0 40px rgba(210, 210, 216, 0.22),
        0 0 72px rgba(170, 170, 182, 0.14);
    opacity: 1;
    transform: scale(1);
    transition:
        box-shadow var(--t-med),
        transform var(--t-med),
        border-color var(--t-med),
        opacity var(--t-med);
}

/* Шестерёнка живёт ВНУТРИ эклипса: центрируется flex-ом обёртки, занимает ~65%
   диаметра кольца, так что между ней и бортиком остаётся «дыхание». Эклипс
   виден всегда — на hover просто проявляем шестерёнку с поворотом и зумом. */
.brand-gear {
    position: relative;
    width: 65%;
    height: 65%;
    display: block;
    fill: none;
    stroke: rgba(245, 245, 247, 0.96);
    stroke-width: 2;
    stroke-linejoin: round;
    stroke-linecap: round;
    opacity: 0;
    transform: rotate(-90deg) scale(0.4);
    transform-origin: 50% 50%;
    filter: drop-shadow(0 0 6px rgba(255, 255, 255, 0.55));
    transition:
        opacity var(--t-med),
        transform var(--t-med);
    pointer-events: none;
}

.brand-lockup:hover .logo-eclipse,
.brand-lockup:focus-visible .logo-eclipse,
.brand-lockup[aria-expanded="true"] .logo-eclipse {
    border-color: rgba(255, 255, 255, 1);
    box-shadow:
        0 0 10px rgba(255, 255, 255, 0.75),
        0 0 26px rgba(255, 255, 255, 0.48),
        0 0 56px rgba(235, 235, 240, 0.38),
        0 0 100px rgba(200, 200, 210, 0.28);
}

.brand-lockup:hover .brand-gear,
.brand-lockup:focus-visible .brand-gear,
.brand-lockup[aria-expanded="true"] .brand-gear {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

@media (prefers-reduced-motion: reduce) {
    .brand-gear {
        transition: opacity var(--t-fast);
    }
    .brand-lockup:hover .brand-gear,
    .brand-lockup:focus-visible .brand-gear,
    .brand-lockup[aria-expanded="true"] .brand-gear {
        transform: none;
    }
}

.brand-mark {
    color: var(--fg);
    font-weight: 500;
    letter-spacing: var(--tracking-wide);
    text-transform: lowercase;
    line-height: 1;
    height: 26px;
    display: inline-flex;
    align-items: center;
}

.brand-tag {
    color: var(--fg-3);
    letter-spacing: var(--tracking-wide);
    font-size: 11px;
}

.conn-state {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--fg-2);
    cursor: default;
    outline: none;
}

.app[data-mode="room"] .conn-state {
    cursor: pointer;
}

.conn-dot {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--fg-3);
    transition: background var(--t-med);
}

.conn-dot.live {
    background: var(--signal);
    box-shadow: 0 0 8px rgba(200, 200, 204, 0.4);
}

.conn-dot.warn {
    background: var(--signal-warn);
}

.conn-dot.pulse {
    animation: conn-dot-pulse 1.1s ease-in-out infinite;
}

@keyframes conn-dot-pulse {

    0%,
    100% {
        opacity: 1;
        box-shadow: 0 0 0 0 rgba(184, 122, 90, 0.5);
    }

    50% {
        opacity: 0.5;
        box-shadow: 0 0 8px 2px rgba(184, 122, 90, 0.25);
    }
}