[data-qtool="concrete-admixture-strategy-selector"] {
            --cass-bg: color-mix(in srgb, var(--bs-body-bg, #fff) 95%, #e8f1f8 5%);
            --cass-panel: color-mix(in srgb, var(--bs-body-bg, #fff) 97%, #dbe7f2 3%);
            --cass-text: var(--bs-body-color, #172033);
            --cass-muted: var(--bs-secondary-color, #617080);
            --cass-line: color-mix(in srgb, var(--bs-border-color, #d8dee6) 80%, #809bb5 20%);
            --cass-blue: #245d8f;
            --cass-navy: #12324f;
            display: block;
            color: var(--cass-text);
            background: var(--cass-bg);
            border: 1px solid var(--cass-line);
            border-radius: 18px;
            overflow: hidden;
        }

        [data-qtool="concrete-admixture-strategy-selector"] * { box-sizing: border-box; }

        [data-qtool="concrete-admixture-strategy-selector"] .cass-wrap {
            display: grid;
            gap: .8rem;
            padding: clamp(.85rem, 2vw, 1.2rem);
        }

        [data-qtool="concrete-admixture-strategy-selector"] .cass-head {
            display: flex;
            align-items: baseline;
            justify-content: space-between;
            gap: .6rem 1rem;
            flex-wrap: wrap;
        }

        [data-qtool="concrete-admixture-strategy-selector"] .cass-title {
            margin: 0;
            color: var(--cass-navy);
            font-size: clamp(1.05rem, 2vw, 1.3rem);
            font-weight: 800;
            line-height: 1.2;
        }

        [data-bs-theme="dark"] [data-qtool="concrete-admixture-strategy-selector"] .cass-title {
            color: #e8f3ff;
        }

        [data-qtool="concrete-admixture-strategy-selector"] .cass-intro,
        [data-qtool="concrete-admixture-strategy-selector"] .cass-site-note {
            margin: 0;
            color: var(--cass-muted);
            font-size: .82rem;
            line-height: 1.4;
        }

        [data-qtool="concrete-admixture-strategy-selector"] .cass-control {
            display: grid;
            grid-template-columns: minmax(10rem, 14rem) minmax(0, 1fr);
            align-items: center;
            gap: .65rem;
        }

        [data-qtool="concrete-admixture-strategy-selector"] label {
            color: var(--cass-text);
            font-size: .86rem;
            font-weight: 750;
        }

        [data-qtool="concrete-admixture-strategy-selector"] select {
            width: 100%;
            min-height: 2.5rem;
            padding: .45rem 2rem .45rem .65rem;
            border: 1px solid var(--cass-line);
            border-radius: .7rem;
            color: var(--cass-text);
            background-color: var(--bs-body-bg, #fff);
            font: inherit;
            font-size: .9rem;
        }

        [data-qtool="concrete-admixture-strategy-selector"] select:focus {
            outline: 0;
            border-color: var(--cass-blue);
            box-shadow: 0 0 0 .18rem rgba(36, 93, 143, .14);
        }

        [data-qtool="concrete-admixture-strategy-selector"] .cass-result {
            display: grid;
            grid-template-columns: minmax(0, 1.15fr) minmax(0, 1.5fr) minmax(0, 1fr);
            gap: .7rem;
            padding: .8rem .9rem;
            border: 1px solid var(--cass-line);
            border-left: 4px solid var(--cass-blue);
            border-radius: 12px;
            background: var(--cass-panel);
        }

        [data-qtool="concrete-admixture-strategy-selector"] .cass-result-block { min-width: 0; }

        [data-qtool="concrete-admixture-strategy-selector"] .cass-label {
            display: block;
            margin-bottom: .2rem;
            color: var(--cass-muted);
            font-size: .72rem;
            font-weight: 800;
            letter-spacing: .025em;
            line-height: 1.25;
            text-transform: uppercase;
        }

        [data-qtool="concrete-admixture-strategy-selector"] .cass-value {
            margin: 0;
            color: var(--cass-text);
            font-size: .86rem;
            line-height: 1.4;
        }

        [data-qtool="concrete-admixture-strategy-selector"] .cass-strategy {
            font-size: .95rem;
            font-weight: 800;
        }

        [data-qtool="concrete-admixture-strategy-selector"] .cass-foot {
            display: grid;
            gap: .2rem;
        }

        [data-qtool="concrete-admixture-strategy-selector"] .cass-disclaimer {
            margin: 0;
            color: var(--cass-text);
            font-size: .78rem;
            font-weight: 800;
            line-height: 1.35;
        }

        @media (max-width: 767.98px) {
            [data-qtool="concrete-admixture-strategy-selector"] .cass-result {
                grid-template-columns: 1fr;
                gap: .6rem;
            }
        }

        @media (max-width: 575.98px) {
            [data-qtool="concrete-admixture-strategy-selector"] .cass-control {
                grid-template-columns: 1fr;
                gap: .3rem;
            }

            [data-qtool="concrete-admixture-strategy-selector"] .cass-wrap {
                padding: .8rem;
            }
        }