/* ============================================================================
   CARD - mechanics that cannot be expressed as a utility
   ----------------------------------------------------------------------------
   Everything token-driven lives in the TSX as a tier-2 utility
   (bg-surface-raised, text-text-accent, rounded-surface, ...). This file only
   holds the three things a utility cannot do:

     1. paint an exported SVG asset in the current token colour (mask),
     2. the whole-card link overlay + its focus ring,
     3. the hover transitions, which need a duration/easing token pair.

   Class names are prefixed `sh-card` because this file is imported by the
   component rather than by app/app.css, so it is not scoped by anything else.

   Everything lives in @layer components so a Tailwind utility passed through
   `className` (`rounded-surface`, `text-text-secondary`, ...) still wins.
   The layer statement is a defensive no-op when app.css has already declared
   the same order, and makes this file correct on its own if it ever loads first.
   ========================================================================= */

@layer theme, base, components, utilities;

@layer components {
  /* ---------------------------------------------------------------------------
     ICONS
     The SVGs exported from Figma (public/assets/icons/*.svg) have the brand
     green baked in as stroke="#008764", which would be wrong on the dark surface
     and inside the accent chips. Drawing the asset as a mask over a currentColor
     fill keeps the exact exported geometry while the colour comes from whichever
     semantic token the parent set. Size is set per instance so each icon keeps
     its designed box (14px, or 10px for the stat trend arrow).
     ------------------------------------------------------------------------ */
  .sh-card-icon {
    display: block;
    flex: none;
    background-color: currentColor;
    -webkit-mask-image: var(--sh-card-icon-src);
    mask-image: var(--sh-card-icon-src);
    -webkit-mask-repeat: no-repeat;
    mask-repeat: no-repeat;
    -webkit-mask-position: center;
    mask-position: center;
    -webkit-mask-size: contain;
    mask-size: contain;
  }

  /* Arrows that mean "forward" point the other way in Arabic. Only the
     horizontal arrow mirrors - the stat trend arrow is vertical. */
  [dir="rtl"] .sh-card-icon--directional {
    transform: scaleX(-1);
  }

  /* ---------------------------------------------------------------------------
     WHOLE-CARD LINK
     The anchor around the title stretches over the card with ::after, so the
     entire card is clickable while the title stays the accessible name and no
     interactive element is nested inside another.

     z-index 1 / 2 are structural, not design values: 1 is the overlay, 2 lifts
     anything that has to stay clickable above it (the team card's social links).
     ------------------------------------------------------------------------ */
  .sh-card-link::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
  }

  .sh-card-above {
    position: relative;
    z-index: 2;
  }

  /* The ring belongs around the card, not around the inline title text. Where
     :has() is unavailable the anchor keeps the global :focus-visible ring from
     app.css, so focus is never invisible. */
  @supports selector(:has(*)) {
    .sh-card-link:focus-visible {
      outline: none;
    }

    .sh-card:has(.sh-card-link:focus-visible) {
      outline: var(--focus-ring-width) solid var(--focus-ring-color);
      outline-offset: var(--focus-ring-offset);
    }
  }

  /* ---------------------------------------------------------------------------
     HOVER / FOCUS AFFORDANCES
     ------------------------------------------------------------------------ */
  .sh-card--linked {
    transition:
      box-shadow var(--motion-duration-base) var(--motion-ease-standard),
      border-color var(--motion-duration-base) var(--motion-ease-standard);
  }

  .sh-card--linked:hover {
    border-color: var(--border-default);
    box-shadow: var(--elevation-popover);
  }

  .sh-card--linked:hover .sh-card-title,
  .sh-card--linked:has(.sh-card-link:focus-visible) .sh-card-title {
    text-decoration: underline;
    text-underline-offset: 2px;
  }

  .sh-card-media img {
    transition: transform var(--motion-duration-slow) var(--motion-ease-standard);
  }

  .sh-card--linked:hover .sh-card-media img {
    transform: scale(1.04);
  }

  /* app.css already neutralises transition durations under reduced motion, but a
     transform still lands instantly - drop it entirely. */
  @media (prefers-reduced-motion: reduce) {
    .sh-card--linked:hover .sh-card-media img {
      transform: none;
    }
  }

  /* The CTA sits on the accent fill, where the green focus ring has almost no
     contrast. Inside its data-surface="dark" subtree the inverse ring is white. */
  .sh-card-cta-action:focus-visible {
    outline-color: var(--focus-ring-color-inverse);
  }
}