:root {
    --interface-accent: #1769aa;
    --interface-accent-hover: #12578e;
}

:is(.auth-page, .universal-panel-page, .main-page) {
    min-width: 320px;
    background:
        radial-gradient(circle at 18% 16%, rgba(42, 156, 225, 0.35), transparent 32%),
        radial-gradient(circle at 82% 82%, rgba(228, 177, 0, 0.2), transparent 29%),
        linear-gradient(135deg, #081b2c 0%, #0f4d78 52%, #08243b 100%);
    background-attachment: fixed;
    color: #172033;
    font-family: Inter, "Segoe UI", Arial, sans-serif;
}

:is(.auth-page, .universal-panel-page, .main-page),
:is(.auth-page, .universal-panel-page, .main-page) * {
    box-sizing: border-box;
}

:is(.auth-page, .universal-panel-page, .main-page) > header {
    position: relative;
    z-index: 1000;
    height: 72px;
    margin: 16px;
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.12);
    box-shadow: 0 12px 30px rgba(1, 13, 24, 0.16);
    backdrop-filter: blur(12px);
}

:is(.auth-page, .universal-panel-page, .main-page) > header .part.central {
    height: 72px;
}

:is(.auth-page, .universal-panel-page, .main-page) > header .part.central img {
    height: 42px;
    filter: brightness(0) invert(1);
}

:is(.auth-page, .universal-panel-page, .main-page) footer {
    margin: 0 16px 16px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 16px;
    background: rgba(7, 25, 40, 0.28);
}

:is(.auth-page, .universal-panel-page, .main-page) footer p {
    margin: 14px 18px;
    color: rgba(255, 255, 255, 0.84);
    text-align: center;
}

@media (max-width: 600px) {
    :is(.auth-page, .universal-panel-page, .main-page) > header {
        height: 60px;
        margin: 10px;
        border-radius: 14px;
    }

    :is(.auth-page, .universal-panel-page, .main-page) > header .part.central {
        height: 60px;
    }

    :is(.auth-page, .universal-panel-page, .main-page) > header .part.central img {
        height: 34px;
    }

    :is(.auth-page, .universal-panel-page, .main-page) footer {
        margin: 0 10px 10px;
        font-size: 12px;
    }
}