/*
 * Data tables: `<x-table>` (resources/views/components/table.blade.php), whose callers write plain
 * `<thead>`, `<tr>`, `<th>` and `<td>` inside it.
 *
 * So the styling is descendant selectors on the one attribute the component sets, all inside
 * `:where()` and `@layer components`: a caller's `text-end` or `whitespace-nowrap` on a cell always
 * wins. Header cells in title-small on-surface-variant over an outline-variant rule, body cells in
 * body-medium between outline-variant rules. A row that opens something is `data-list-row` and
 * answers a pointer as a list row does (components/list.css).
 *
 * A row is 52px: 16px above and below a body-medium line. Density is never applied by itself —
 * "don't apply density by default; offer an explicit density opt-in instead, keeping opt-out targets
 * at >= 48x48 CSS px" (docs/reference/m3/foundations-supplement.md § Accessibility) — so `dense`
 * (`data-dense`) is the caller's decision, and it is the caller's to justify: a dense row is 36px,
 * and a dense row inside an `xs` table 24px.
 */

@layer components {
    /* `relative` makes the table the containing block for anything absolute inside it — an `sr-only`
       header label, a tooltip. Without it they escape the scroll box and widen a phone's layout
       viewport. */
    [data-table] {
        --cell-x: 0.75rem;
        --cell-y: 1rem;

        position: relative;
        width: 100%;
        border-collapse: collapse;
        color: var(--md-sys-color-on-surface);
        font: var(--md-sys-typescale-body-md);
        letter-spacing: var(--md-sys-typescale-body-md-tracking);
    }

    [data-table][data-size="xs"] {
        --cell-x: 0.5rem;
        --cell-y: 0.5rem;

        font: var(--md-sys-typescale-body-sm);
        letter-spacing: var(--md-sys-typescale-body-sm-tracking);
    }

    [data-table][data-dense] {
        --cell-y: 0.5rem;
    }

    [data-table][data-size="xs"][data-dense] {
        --cell-y: 0.25rem;
    }

    [data-table] :where(th, td) {
        padding: var(--cell-y) var(--cell-x);
        text-align: start;
        vertical-align: middle;
    }

    [data-table] :where(thead th) {
        color: var(--md-sys-color-on-surface-variant);
        font: var(--md-sys-typescale-title-sm);
        letter-spacing: var(--md-sys-typescale-title-sm-tracking);
        white-space: nowrap;
        border-bottom: 1px solid var(--md-sys-color-outline-variant);
    }

    [data-table][data-size="xs"] :where(thead th) {
        font: var(--md-sys-typescale-label-md);
        letter-spacing: var(--md-sys-typescale-label-md-tracking);
    }

    /* The role itself, not a fraction of it: M3 reserves opacity for state layers and disabled. */
    [data-table] :where(tbody tr) {
        border-bottom: 1px solid var(--md-sys-color-outline-variant);
    }

    [data-table] :where(tbody tr:last-child) {
        border-bottom: 0;
    }

    [data-table] :where(tbody tr[aria-selected="true"]) {
        background-color: var(--md-sys-color-secondary-container);
        color: var(--md-sys-color-on-secondary-container);
    }
}