/*
 * htmxRazor Core
 * Shared component foundations — base styles used across all components.
 */

/* ── Visually hidden (accessible) ── */
.rhx-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ── Focus ring ── */
.rhx-focus-ring:focus-visible {
  outline: 2px solid var(--rhx-color-focus-ring);
  outline-offset: 2px;
}

/* ── Disabled state ── */
.rhx-disabled,
[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* ── Loading indicator (htmx) ── */
.rhx-loading {
  position: relative;
  pointer-events: none;
}

.rhx-loading::after {
  content: "";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--rhx-color-surface);
  opacity: 0.7;
  border-radius: inherit;
}

/* ── htmx indicator integration ── */
.htmx-indicator {
  display: none;
}

.htmx-request .htmx-indicator {
  display: inline-block;
}

.htmx-request.htmx-indicator {
  display: inline-block;
}

/* ── Transition helpers ── */
.rhx-transition {
  transition-property: color, background-color, border-color, box-shadow, opacity, transform;
  transition-duration: var(--rhx-transition-normal);
  transition-timing-function: ease;
}

.rhx-transition-fast {
  transition-duration: var(--rhx-transition-fast);
}

.rhx-transition-slow {
  transition-duration: var(--rhx-transition-slow);
}

/* ── Overlay backdrop ── */
.rhx-overlay {
  position: fixed;
  inset: 0;
  background: var(--rhx-color-overlay);
  z-index: var(--rhx-z-dialog);
}

/* ── Surface ── */
.rhx-surface {
  background: var(--rhx-color-surface);
  color: var(--rhx-color-text);
  border: var(--rhx-border-width) solid var(--rhx-color-border);
  border-radius: var(--rhx-radius-md);
}

.rhx-surface--raised {
  background: var(--rhx-color-surface-raised);
  box-shadow: var(--rhx-shadow-md);
}