.devState-container-tabs {
    max-width: 900px;
    margin: 18px auto;
    font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
    background: linear-gradient(180deg,#fff 0%, #fbfdff 100%);
    padding: 18px;
    border-radius: var(--radius);
    box-shadow: 0 8px 30px rgba(10,20,40,0.06);
}

/* Tab bar */
.devState-tabs {
    display: flex;
    gap: 8px;
    align-items: center;
    border-bottom: 1px solid rgba(15,23,42,0.06);
    padding-bottom: 8px;
    margin-bottom: 12px;
    overflow-x: auto;
}

/* Tab buttons */
.devState-tab-btn {
    appearance: none;
    -webkit-appearance: none;
    background: transparent;
    border: none;
    padding: 10px 14px;
    cursor: pointer;
    font-weight: 600;
    color: #223;
    border-radius: 8px 8px 0 0;
    transition: background .18s, transform .12s;
}

    .devState-tab-btn:hover {
        background: rgba(0,0,0,0.03);
    }

    .devState-tab-btn:focus {
        outline: 2px solid rgba(0,102,204,0.18);
        outline-offset: 2px;
    }

    /* active */
    .devState-tab-btn.active {
        color: var(--accent);
        background: linear-gradient(180deg, rgba(0,102,204,0.06), rgba(0,102,204,0.02));
        box-shadow: 0 2px 8px rgba(0,102,204,0.06);
    }

/* optional small badge */
.devState-tab-badge {
    display: inline-block;
    margin-left: 8px;
    background: #eef6ff;
    color: var(--accent);
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 0.75rem;
}

/* Panels */
.devState-tab-panel {
    display: none;
    padding: 16px;
    background: var(--card);
    border-radius: 8px;
    animation: fadeIn .18s ease both;
    border: 1px solid rgba(15,23,42,0.04);
}

    .devState-tab-panel.is-active {
        display: block;
    }

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(6px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* headings + list style */
.devState-tab-panel h3 {
    margin-top: 0;
    color: #142030;
}

.devState-tab-panel ul {
    margin: 8px 0 0 20px;
    color: var(--muted);
}

@media (max-width:640px) {
    .devState-tabs {
        gap: 6px;
        padding-bottom: 6px;
    }

    .devState-tab-btn {
        padding: 8px 10px;
        font-size: 0.95rem;
    }
}