sure/app/assets/tailwind/sure-design-system/components.css

@layer components {
  /*
    Canonical keyboard-focus indicator (#2136). One recipe for every focusable
    primitive: a neutral 2px `outline` that hugs the control (`outline-offset: 0`
    so it sits right at the edge and follows the border-radius), in the
    theme-aware `focus-ring` token.

    `outline` — NOT box-shadow — on purpose: a components-layer box-shadow loses
    to any utility-layer `shadow-*` (or `focus-within:shadow-none` on the field)
    on the same element, so the ring silently vanished on shadowed controls.
    `outline` is a separate property with no such conflict, and it doubles as the
    forced-colors (Windows high-contrast) indicator. `:focus-visible` only, so it
    never shows for mouse/touch. `.focus-ring-within` mirrors it onto a wrapper
    whose focus lands on a child input. `.form-field` deliberately does NOT
    adopt it: form fields keep their original always-on soft halo (ring-4 at
    low alpha) — a resting decoration, not a keyboard-only indicator.
  */
  /* Base: an always-present transparent outline so consumers that carry
     `transition-all` (or any transition touching outline-color) animate
     transparent -> token instead of passing through `currentColor` — the
     latter reads as a black border flashing in and out. */
  .focus-ring,
  .focus-ring-within {
    outline: 2px solid transparent;
    outline-offset: 0;
  }

  .focus-ring:focus-visible,
  .focus-ring-within:focus-within {
    /* Note: consumers carrying `transition-colors` animate this in over
       150ms — Tailwind v4's color transition list includes outline-color.
       Combined with the transparent base above, that reads as a quick
       fade-in rather than a pop, never a flash through currentColor. */
    outline-color: var(--color-focus-ring);
  }

  /* Forms */
  .form-field {
    @apply flex flex-col gap-1 relative px-3 py-2 rounded-md border bg-container border-secondary shadow-xs w-full;
    @apply focus-within:border-secondary focus-within:shadow-none focus-within:ring-4 focus-within:ring-alpha-black-200;
    @apply transition-all duration-300;

    @variant theme-dark {
      @apply focus-within:ring-alpha-white-300;
    }

    /* Add styles for multiple select within form fields */
    select[multiple] {
      @apply py-2 pr-2 space-y-0.5 overflow-y-auto;

      option {
        @apply py-2 rounded-md;
      }

      option:checked {
        @apply after:content-['\2713'] bg-container-inset after:text-gray-500 after:ml-2;
      }

      option:active,
      option:focus {
        @apply bg-container-inset;
      }
    }
  }

  /* New form field structure components */
  .form-field__header {
    @apply flex items-center justify-between gap-2;
  }

  .form-field__body {
    @apply flex flex-col gap-1;
  }

  .form-field__actions {
    @apply flex items-center gap-1;
  }

  .form-field__label {
    @apply block text-xs text-secondary peer-disabled:text-subdued;
  }

  .form-field__input {
    @apply text-primary border-none bg-container text-sm opacity-100 w-full p-0;
    @apply focus:opacity-100 focus:outline-hidden focus:ring-0;
    @apply placeholder-shown:opacity-50;
    @apply disabled:text-subdued;
    @apply text-ellipsis overflow-hidden whitespace-nowrap;
    @apply transition-opacity duration-300;
    @apply placeholder:text-subdued;

    @variant theme-dark {
      &::-webkit-calendar-picker-indicator {
        filter: invert(1);
        cursor: pointer;
      }
    }
  }

  textarea.form-field__input {
    @apply whitespace-normal overflow-auto;
    text-overflow: clip;
  }

  .form-field__input--multiselect-trigger {
    @apply whitespace-normal overflow-visible;
    text-overflow: clip;
  }

  select.form-field__input,
  button.form-field__input  {
    @apply pr-10 appearance-none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right -0.15rem center;
    background-repeat: no-repeat;
    background-size: 1.25rem 1.25rem;
    text-align: left;
  }

  .form-field__radio {
    @apply text-primary;
  }

  .form-field__submit {
    @apply cursor-pointer rounded-lg bg-surface p-3 text-center text-white hover:bg-surface-hover;
  }

  /* Checkboxes */
  .checkbox {
    &[type='checkbox'] {
      @apply rounded-sm;
      @apply transition-colors duration-300;
    }
  }

  .checkbox--light {
    &[type='checkbox'] {
      @apply border-alpha-black-200 checked:bg-gray-900 checked:ring-gray-900 focus:ring-gray-900 focus-visible:ring-gray-900 checked:hover:bg-gray-300 hover:bg-gray-300;
    }

    &[type='checkbox']:disabled {
      @apply cursor-not-allowed opacity-80 bg-gray-50 border-gray-200 checked:bg-gray-400 checked:ring-gray-400;
    }

    @variant theme-dark {
      &[type='checkbox'] {
        @apply ring-gray-900 border-alpha-white-300;
        background-color: transparent;
      }

      &[type='checkbox']:disabled {
        @apply cursor-not-allowed opacity-80 border-transparent;
        background-color: var(--color-gray-700);
      }

      &[type='checkbox']:checked,
      &[type='checkbox']:indeterminate {
        @apply border-transparent;
        background-color: var(--color-gray-100);
      }

      &[type='checkbox']:checked {
        background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 16 16' fill='%23171717' xmlns='http://www.w3.org/2000/svg'%3e%3cpath d='M12.207 4.793a1 1 0 010 1.414l-5 5a1 1 0 01-1.414 0l-2-2a1 1 0 011.414-1.414L6.5 9.086l4.293-4.293a1 1 0 011.414 0z'/%3e%3c/svg%3e");
      }

      &[type='checkbox']:indeterminate {
        background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 16 16' fill='%23171717' xmlns='http://www.w3.org/2000/svg'%3e%3crect x='3.5' y='7' width='9' height='2' rx='1'/%3e%3c/svg%3e");
      }
    }
  }

  .checkbox--dark {
    &[type='checkbox'] {
      @apply ring-gray-900 checked:text-white;
    }

    &[type='checkbox']:disabled {
      @apply cursor-not-allowed opacity-80 ring-gray-600;
    }

    &[type='checkbox']:checked {
      background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 16 16' fill='%23111827' xmlns='http://www.w3.org/2000/svg'%3e%3cpath d='M12.207 4.793a1 1 0 010 1.414l-5 5a1 1 0 01-1.414 0l-2-2a1 1 0 011.414-1.414L6.5 9.086l4.293-4.293a1 1 0 011.414 0z'/%3e%3c/svg%3e");
    }
  }

  /* Tooltips */
  .tooltip {
    @apply hidden absolute;
  }

  .qrcode svg path {
    fill: var(--color-black);
    @variant theme-dark {
      fill: var(--color-white);
    }
  }

  /*
    Segmented control (#2137) — track + equal-footprint segments. The selected
    state is a single `--active` class so an optional Stimulus controller can
    toggle it as one unit. Values mirror the DS tab tokens (tab-bg-group /
    tab-item-active / tab-item-hover) but are inlined with `@variant theme-dark`
    because `@apply`-ing a custom utility drops its dark override. The near-black
    dark track (alpha-black-700) is what makes the gray-700 selected pill read —
    the bespoke controls used a too-light `container-inset` track, hence the
    audit's "selected pill invisible on dark." Focus comes from the canonical
    recipe (`focus-ring` on link segments, the base button rule on button
    segments), not from this block.
  */
  .segmented-control {
    @apply inline-flex items-center gap-0.5 p-1 rounded-lg bg-gray-50;
    @variant theme-dark {
      @apply bg-alpha-black-700;
    }
  }

  .segmented-control__segment {
    @apply inline-flex items-center justify-center px-2 py-1 rounded-md whitespace-nowrap;
    @apply text-sm font-medium text-secondary cursor-pointer transition-colors duration-200;
    @apply hover:bg-gray-200;
    @variant theme-dark {
      @apply hover:bg-gray-800;
    }
  }

  .segmented-control__segment--active {
    @apply bg-white text-primary shadow-sm hover:bg-white;
    @variant theme-dark {
      @apply bg-gray-700 hover:bg-gray-700;
    }
  }

  /*
    Horizontally scrollable table wrapper (#2137). `overflow-x: auto` so wide
    tables scroll instead of clipping (the LLM-usage table was `overflow-hidden`
    and pushed columns off-screen) or wrapping money mid-digit. The pure-CSS
    "scroll shadow" gives the missing affordance: the cover gradients
    (`--table-scroll-bg`, default container-inset) scroll WITH the content
    (`background-attachment: local`) and hide the fixed shadow gradients at the
    edges, so a soft edge-shadow only appears when there is more to scroll.
    Theme-aware via `--color-shadow`. Set `--table-scroll-bg` to match the wrapper.
  */
  .table-scroll {
    --table-scroll-bg: var(--color-container-inset);
    overflow-x: auto;
    background:
      linear-gradient(to right, var(--table-scroll-bg) 30%, transparent),
      linear-gradient(to left, var(--table-scroll-bg) 30%, transparent) 100% 0,
      radial-gradient(farthest-side at 0 50%, var(--color-shadow), transparent),
      radial-gradient(farthest-side at 100% 50%, var(--color-shadow), transparent) 100% 0;
    background-repeat: no-repeat;
    background-color: var(--table-scroll-bg);
    background-size: 32px 100%, 32px 100%, 12px 100%, 12px 100%;
    background-attachment: local, local, scroll, scroll;
  }

  /*
    Chart hover tooltip surface (see utils/chart_tooltip.js for the JS-side
    contract). Matches the design reference exactly: hairline border ring
    composed with a soft 8/24 drop shadow (Tailwind shadow utilities don't
    compose, hence the component class), 10px radius, 10x12 padding. Dark
    mode swaps the ring to alpha-white; the drop shadow is near-invisible
    there, which is fine — the ring carries the edge.

    No position transition here on purpose: cursor-following tooltips
    (sankey, time-series) update left/top every mousemove and a transition
    makes them trail the pointer. Snap-positioned tooltips (goal projection,
    which jumps between dates) opt into the 80ms glide via inline style.
  */
  .chart-tooltip {
    background: var(--color-container);
    border-radius: 10px;
    padding: 10px 12px;
    box-shadow:
      0 0 0 1px var(--color-alpha-black-50),
      0 8px 24px rgba(11, 11, 11, 0.12);

    @variant theme-dark {
      box-shadow:
        0 0 0 1px var(--color-alpha-white-50),
        0 8px 24px rgba(11, 11, 11, 0.12);
    }
  }
}