/* Section Workbench — route-scoped orientation for dense research pages. */
.section--section-workbench {
    position: relative;
    z-index: 4;
    padding-block: clamp(2.25rem, 5vw, 4.75rem);
    border-block: 1px solid var(--line);
    background:
        linear-gradient(135deg, rgba(var(--signal-rgb), 0.055), transparent 38%),
        linear-gradient(315deg, rgba(var(--violet-rgb), 0.06), transparent 42%),
        var(--bg-soft);
    scroll-margin-top: calc(var(--header-h) + 1rem);
}

.section-workbench {
    display: grid;
    gap: clamp(1.1rem, 2vw, 1.8rem);
}

.section-workbench__header {
    display: grid;
    grid-template-columns: minmax(0, 1.7fr) minmax(16rem, 0.7fr);
    gap: clamp(1.25rem, 3vw, 3rem);
    align-items: end;
}

.section-workbench__intro {
    max-width: 62rem;
}

.section-workbench__intro h2 {
    max-width: 18ch;
    margin-bottom: 0.7rem;
    font-size: clamp(2rem, 4.1vw, 4.7rem);
    line-height: 0.95;
}

.section-workbench__intro > p:last-child {
    max-width: 72ch;
    margin-bottom: 0;
    color: var(--muted);
    font-size: clamp(0.94rem, 1.25vw, 1.08rem);
}

.section-workbench__law {
    display: grid;
    gap: 0.45rem;
    min-width: 0;
    padding: 1rem 1.1rem;
    border: 1px solid var(--line-strong);
    border-left: 0.28rem solid var(--signal);
    background: rgba(var(--signal-rgb), 0.055);
}

.section-workbench__law span {
    color: var(--signal);
    font-family: var(--font-mono);
    font-size: 0.69rem;
    font-weight: 800;
    letter-spacing: 0.14em;
}

.section-workbench__law strong {
    font-size: 0.9rem;
    line-height: 1.45;
}

.section-workbench__legend {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.65rem;
}

.section-workbench__legend > div {
    display: grid;
    gap: 0.18rem;
    min-width: 0;
    padding: 0.75rem 0.85rem;
    border: 1px solid var(--line);
    border-radius: var(--radius-xs);
    background: rgba(255, 255, 255, 0.02);
}

.section-workbench__legend > div::before {
    width: 2.4rem;
    height: 0.16rem;
    margin-bottom: 0.25rem;
    content: "";
    background: var(--signal);
}

.section-workbench__legend > div[data-workbench-layer="evidence"]::before {
    background: var(--cyan);
}

.section-workbench__legend > div[data-workbench-layer="apparatus"]::before {
    background: var(--violet);
}

.section-workbench__legend strong {
    font-size: 0.82rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.section-workbench__legend span {
    color: var(--muted);
    font-size: 0.78rem;
    line-height: 1.4;
}

.section-workbench__statusbar {
    display: flex;
    gap: 1rem;
    align-items: center;
    justify-content: space-between;
    min-height: 3.25rem;
    padding: 0.55rem 0.65rem 0.55rem 1rem;
    border-block: 1px solid var(--line);
}

.section-workbench__statusbar p {
    margin: 0;
    color: var(--muted);
    font-family: var(--font-mono);
    font-size: 0.74rem;
    line-height: 1.45;
}

.section-workbench__statusbar button {
    display: inline-flex;
    flex: 0 0 auto;
    gap: 0.65rem;
    align-items: center;
    justify-content: center;
    min-height: 2.75rem;
    padding: 0.55rem 0.85rem;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-xs);
    background: var(--surface-2);
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 0.025em;
}

.section-workbench__statusbar button:hover,
.section-workbench__statusbar button[aria-pressed="true"] {
    border-color: var(--signal);
    background: rgba(var(--signal-rgb), 0.11);
}

.section-workbench__statusbar button i {
    color: var(--signal);
    font-style: normal;
    font-size: 1rem;
}

.section-workbench__index {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.55rem;
    padding: 0;
    margin: 0;
    list-style: none;
    counter-reset: workbench-index;
}

.section-workbench__index li {
    min-width: 0;
}

.section-workbench__index a {
    position: relative;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    grid-template-areas:
        "number copy arrow"
        "number meta arrow";
    gap: 0.24rem 0.72rem;
    align-items: center;
    min-height: 5.35rem;
    padding: 0.78rem 0.72rem;
    border: 1px solid var(--line);
    border-radius: var(--radius-xs);
    background: rgba(255, 255, 255, 0.018);
    transition: border-color 160ms ease, background-color 160ms ease, transform 160ms ease;
}

.section-workbench__index a::after {
    position: absolute;
    inset: auto 0 0;
    height: 0.14rem;
    content: "";
    transform: scaleX(0);
    transform-origin: left;
    background: var(--signal);
    transition: transform 160ms ease;
}

.section-workbench__index li[data-workbench-layer="evidence"] a::after {
    background: var(--cyan);
}

.section-workbench__index li[data-workbench-layer="apparatus"] a::after {
    background: var(--violet);
}

.section-workbench__index a:hover,
.section-workbench__index a[aria-current="location"] {
    border-color: var(--line-strong);
    background: var(--surface-2);
    transform: translateY(-0.12rem);
}

.section-workbench__index a:hover::after,
.section-workbench__index a[aria-current="location"]::after {
    transform: scaleX(1);
}

.section-workbench__number {
    grid-area: number;
    align-self: stretch;
    display: grid;
    place-items: center;
    min-width: 2.25rem;
    border-right: 1px solid var(--line);
    color: var(--signal);
    font-family: var(--font-mono);
    font-size: 0.73rem;
    font-weight: 800;
}

.section-workbench__index li[data-workbench-layer="evidence"] .section-workbench__number {
    color: var(--cyan);
}

.section-workbench__index li[data-workbench-layer="apparatus"] .section-workbench__number {
    color: var(--violet);
}

.section-workbench__copy {
    grid-area: copy;
    display: grid;
    min-width: 0;
}

.section-workbench__copy strong {
    overflow: hidden;
    font-size: 0.92rem;
    line-height: 1.25;
    text-overflow: ellipsis;
}

.section-workbench__copy > span {
    overflow: hidden;
    color: var(--muted);
    font-size: 0.73rem;
    line-height: 1.35;
    text-overflow: ellipsis;
}

.section-workbench__meta {
    grid-area: meta;
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
    align-items: center;
    min-width: 0;
}

.section-workbench__meta em,
.section-workbench__meta code {
    display: inline-flex;
    align-items: center;
    min-height: 1.35rem;
    padding: 0.1rem 0.38rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--muted);
    background: var(--bg);
    font-family: var(--font-mono);
    font-size: 0.61rem;
    font-style: normal;
    line-height: 1.15;
    white-space: nowrap;
}

.section-workbench__meta code {
    color: var(--text);
}

.section-workbench__arrow {
    grid-area: arrow;
    color: var(--faint);
    font-size: 1rem;
}

.section-workbench__return {
    position: fixed;
    right: max(0.75rem, env(safe-area-inset-right));
    bottom: max(0.75rem, env(safe-area-inset-bottom));
    z-index: 110;
    display: inline-flex;
    gap: 0.6rem;
    align-items: center;
    justify-content: center;
    min-width: 8rem;
    min-height: 2.9rem;
    padding: 0.55rem 0.8rem;
    border: 1px solid var(--line-strong);
    border-radius: 999px;
    background: color-mix(in srgb, var(--surface) 94%, transparent);
    box-shadow: var(--shadow);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    backdrop-filter: blur(0.65rem);
}

.section-workbench__return strong {
    color: var(--signal);
    font-size: 0.95rem;
}

.js .section-workbench__return {
    opacity: 0;
    transform: translateY(0.65rem);
    pointer-events: none;
    transition: opacity 160ms ease, transform 160ms ease;
}

.js .section-workbench__return.is-active {
    opacity: 1;
    transform: none;
    pointer-events: auto;
}

.section-workbench-target {
    scroll-margin-top: calc(var(--header-h) + 1rem);
}

.section-workbench-deep-link {
    position: relative;
    isolation: isolate;
}

.section-workbench-deep-link::before {
    position: absolute;
    inset: 0.4rem;
    z-index: -1;
    border: 1px solid rgba(var(--signal-rgb), 0.55);
    border-radius: var(--radius-sm);
    content: "";
    pointer-events: none;
    animation: workbench-deep-link 1.5s ease both;
}

@keyframes workbench-deep-link {
    0% { opacity: 0; box-shadow: 0 0 0 0 rgba(var(--signal-rgb), 0.3); }
    30% { opacity: 1; box-shadow: 0 0 0 0.6rem rgba(var(--signal-rgb), 0.08); }
    100% { opacity: 0.55; box-shadow: 0 0 0 0 rgba(var(--signal-rgb), 0); }
}

@media (max-width: 68rem) {
    .section-workbench__header {
        grid-template-columns: 1fr;
        align-items: start;
    }

    .section-workbench__law {
        max-width: 44rem;
    }

    .section-workbench__index {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 44rem) {
    .section--section-workbench {
        padding-block: 2rem;
    }

    .section-workbench__legend {
        grid-template-columns: 1fr;
    }

    .section-workbench__legend > div {
        grid-template-columns: auto minmax(0, 1fr);
        column-gap: 0.75rem;
        align-items: start;
    }

    .section-workbench__legend > div::before {
        grid-row: 1 / span 2;
        width: 0.16rem;
        height: 100%;
        margin: 0;
    }

    .section-workbench__statusbar {
        align-items: stretch;
        flex-direction: column;
        padding: 0.75rem 0;
    }

    .section-workbench__statusbar button {
        width: 100%;
    }

    .section-workbench__index {
        grid-template-columns: 1fr;
    }

    .section-workbench__index a {
        min-height: 4.65rem;
    }

    .section-workbench__return {
        right: max(0.5rem, env(safe-area-inset-right));
        bottom: max(0.5rem, env(safe-area-inset-bottom));
        min-width: 0;
    }
}

@media (max-width: 23rem) {
    .section-workbench__intro h2 {
        font-size: 1.9rem;
    }

    .section-workbench__index a {
        grid-template-columns: auto minmax(0, 1fr);
        grid-template-areas:
            "number copy"
            "number meta";
    }

    .section-workbench__arrow {
        display: none;
    }

    .section-workbench__return span {
        max-width: 4.2rem;
        line-height: 1.15;
    }
}

@media (prefers-reduced-motion: reduce) {
    .section-workbench__index a,
    .section-workbench__index a::after,
    .section-workbench__return {
        transition: none;
    }

    .section-workbench-deep-link::before {
        animation: none;
        opacity: 0.75;
    }
}

@media print {
    .section--section-workbench {
        padding-block: 1.2rem;
        border: 1px solid #777;
        break-after: page;
        background: #fff;
    }

    .section-workbench__header,
    .section-workbench__legend,
    .section-workbench__index {
        break-inside: avoid;
    }

    .section-workbench__law,
    .section-workbench__legend > div,
    .section-workbench__index a {
        color: #000;
        background: #fff;
        box-shadow: none;
    }

    .section-workbench__statusbar,
    .section-workbench__return,
    .section-workbench__arrow {
        display: none !important;
    }

    .section-workbench__index {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    main details > :not(summary) {
        display: block !important;
    }
}