.universal-account-control {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: fixed;
    z-index: 80;
    right: max(14px, env(safe-area-inset-right));
    bottom: max(14px, env(safe-area-inset-bottom));
    min-width: 0;
    min-height: 46px;
    border: 1px solid rgba(103, 215, 174, 0.7);
    border-radius: 999px;
    padding: 0.65rem 1rem;
    color: #07100c;
    background: linear-gradient(135deg, #8ae7c4, #58c79f);
    box-shadow: 0 12px 34px rgba(0, 0, 0, 0.42);
    font: 800 0.82rem/1.15 system-ui, sans-serif;
    letter-spacing: 0.01em;
    text-decoration: none;
    cursor: pointer;
}

.hub-page .universal-account-control {
    position: static;
    min-height: 36px;
    border-radius: 4px;
    padding: 0 0.72rem;
    box-shadow: none;
    font-size: 0.76rem;
}

.universal-account-control:hover {
    filter: brightness(1.08);
    transform: translateY(-1px);
}

.universal-account-control:focus-visible,
.universal-account-overlay button:focus-visible,
.universal-account-overlay input:focus-visible {
    outline: 3px solid #f0b76a;
    outline-offset: 3px;
}

.universal-account-label-compact {
    display: none;
}

.universal-account-overlay {
    position: fixed;
    z-index: 100;
    inset: 0;
    display: grid;
    place-items: center;
    overflow: auto;
    overscroll-behavior: contain;
    padding: max(18px, env(safe-area-inset-top)) max(18px, env(safe-area-inset-right)) max(18px, env(safe-area-inset-bottom)) max(18px, env(safe-area-inset-left));
    color: var(--account-ink, #eef5f2);
    background: rgba(2, 7, 8, 0.84);
    backdrop-filter: blur(16px);
}

.universal-account-overlay[hidden] {
    display: none !important;
}

.universal-account-overlay .account-overlay-panel {
    width: min(680px, 100%);
    max-height: calc(100dvh - 36px);
    overflow: auto;
    overscroll-behavior: contain;
    border: 1px solid var(--account-line, #31504a);
    border-radius: 22px;
    padding: clamp(18px, 4vw, 32px);
    color: var(--account-ink, #eef5f2);
    background: rgba(8, 18, 19, 0.98);
    box-shadow: 0 28px 90px rgba(0, 0, 0, 0.64);
}

.universal-account-overlay .account-overlay-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 12px;
}

.universal-account-overlay .account-overlay-heading h2,
.universal-account-overlay .account-form h3 {
    margin: 0;
    color: var(--account-ink, #eef5f2);
}

.universal-account-overlay .account-overlay-close {
    flex: 0 0 auto;
    width: 44px;
    min-height: 44px;
    border: 1px solid var(--account-line, #31504a);
    border-radius: 50%;
    padding: 0;
    color: var(--account-ink, #eef5f2);
    background: rgba(255, 255, 255, 0.05);
    box-shadow: none;
    font-size: 1.5rem;
}

.universal-account-overlay .account-overlay-intro,
.universal-account-overlay .account-overlay-footnote {
    color: var(--account-muted, #a9bbb5);
    line-height: 1.55;
}

.universal-account-overlay .account-credential-boundary,
.universal-account-overlay .account-authenticated-copy {
    display: grid;
    gap: 4px;
    margin: 16px 0;
    border-left: 3px solid var(--account-warm, #f0b76a);
    padding: 10px 12px;
    color: var(--account-muted, #a9bbb5);
    background: rgba(240, 183, 106, 0.07);
}

.universal-account-overlay .account-credential-boundary strong,
.universal-account-overlay .account-authenticated-copy strong {
    color: var(--account-ink, #eef5f2);
}

.universal-account-overlay .account-tabs {
    margin-top: 18px;
}

.universal-account-overlay .account-form {
    padding-top: 20px;
}

.universal-account-overlay .account-form input {
    color: var(--account-ink, #eef5f2);
}

.universal-account-overlay .account-status {
    min-height: 24px;
}

.has-open-account-overlay {
    overflow: hidden !important;
}

@media (max-width: 520px), (max-height: 520px) {
    .universal-account-control {
        right: max(10px, env(safe-area-inset-right));
        bottom: max(10px, env(safe-area-inset-bottom));
        width: 48px;
        height: 48px;
        min-height: 48px;
        padding: 0;
    }

    .hub-page .universal-account-control {
        min-height: 48px;
    }

    .universal-account-label {
        display: none;
    }

    .universal-account-label-compact {
        display: inline;
        font-size: 0.66rem;
    }

    .universal-account-overlay {
        place-items: stretch;
        padding: max(8px, env(safe-area-inset-top)) max(8px, env(safe-area-inset-right)) max(8px, env(safe-area-inset-bottom)) max(8px, env(safe-area-inset-left));
    }

    .universal-account-overlay .account-overlay-panel {
        width: 100%;
        max-height: calc(100dvh - 16px);
        border-radius: 16px;
        padding: 18px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .universal-account-control {
        transition: none;
    }
}