/* ============================================
   RenDS — Link Component
   ============================================
   Styled anchor with variants.
   CSS-only. No JS needed.

   44px touch target on mobile via min-height.
   Accessible focus ring on keyboard navigation.

   Usage:
     <a href="/page" class="ren-link">Standard link</a>
     <a href="/page" class="ren-link ren-link-muted">Subtle link</a>
     <a href="/page" class="ren-link ren-link-external">External ↗</a>
   ============================================ */

/* ─── Base Link ─── */
.ren-link {
  display: inline;
  color: var(--ren-link-color);
  font-weight: var(--ren-link-font-weight, inherit);
  background: none;
  text-decoration: underline;
  text-decoration-color: color-mix(in oklch, var(--color-text-link), transparent 60%);
  text-underline-offset: 0.15em;
  text-decoration-thickness: var(--ren-link-underline);
  cursor: pointer;
  transition:
    color var(--duration-tactile) var(--ease-enter),
    text-decoration-color var(--duration-tactile) var(--ease-enter);
  /* Inline elements: ensure touch target via padding */
  -webkit-tap-highlight-color: transparent;
}

.ren-link:hover {
  color: var(--ren-link-hover-color);
  background: none;
  text-decoration: underline;
  text-decoration-color: color-mix(in oklch, var(--color-text-link-hover), transparent 30%);
  text-decoration-thickness: calc(var(--ren-link-underline) * 2);
}

.ren-link:active {
  opacity: 0.8;
}

.ren-link:focus-visible {
  outline: var(--ring-width) solid var(--color-focus-ring);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ─── Muted / Subtle ─── */
.ren-link-muted {
  color: var(--color-text-muted);
  text-decoration: none;
}

.ren-link-muted:hover {
  color: var(--color-text);
  text-decoration: underline;
}

/* ─── Unstyled (inherits parent color) ─── */
.ren-link-plain {
  color: inherit;
  text-decoration: none;
}

.ren-link-plain:hover {
  text-decoration: underline;
}

/* ─── External link indicator ─── */
.ren-link-external::after {
  content: ' ↗';
  font-size: 0.85em;
  text-decoration: none;
  display: inline;
}

/* ─── Nav link (block-level, with padding for touch target) ─── */
.ren-link-nav {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  min-height: var(--touch-min);
  padding: var(--space-1) var(--space-2);
  color: var(--color-text);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition:
    background-color var(--duration-tactile) var(--ease-enter),
    color var(--duration-tactile) var(--ease-enter);
}

.ren-link-nav:hover {
  background-color: var(--color-fill);
  color: var(--color-text);
  text-decoration: none;
}

.ren-link-nav[aria-current="page"],
.ren-link-nav[data-active] {
  background-color: var(--color-accent-subtle);
  color: var(--color-accent);
  font-weight: var(--weight-medium);
}

.ren-link-nav:focus-visible {
  outline: var(--ring-width) solid var(--color-focus-ring);
  outline-offset: -2px;
}

/* ─── Skip link (a11y) ─── */
.ren-link-skip {
  position: absolute;
  top: -100%;
  left: var(--space-3);
  padding: var(--space-2) var(--space-4);
  background-color: var(--color-accent);
  color: var(--color-on-accent);
  border-radius: var(--radius-md);
  font-weight: var(--weight-semibold);
  text-decoration: none;
  z-index: 9999;
  transition: top var(--duration-tactile) var(--ease-enter);
}

.ren-link-skip:focus {
  top: var(--space-3);
}