/**
 * DHCW Single Record — Button
 * Reference HTML/CSS implementation, matched to the Figma Button set (1346:500).
 * Consumes @dhcw/sr-tokens CSS custom properties.
 *
 * Properties (mirroring the Figma component):
 *   Type:  Primary | Secondary | Ghost | Destructive
 *          Destructive renders RED (Interactive/Destructive) for irreversible
 *          actions (delete, remove). Aligns with the GDS "Warning" button
 *          (which is also red); renamed Destructive here to avoid colliding
 *          with the amber Status/Warning language used elsewhere. See DDR-008.
 *   Size:  Large | Default | Small
 *   State: Default | Hover | Focus | Disabled (CSS pseudo-classes)
 *   Slots: optional leading / trailing icon (16px), via .sr-button__icon
 */

.sr-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2); /* 8px */
  box-sizing: border-box;
  /* Button text is `label` at every size — DESIGN-SYSTEM names it as one of
     label's three uses. Only the box changes between sizes (height, padding,
     radius); the text does not, so it is set once here. */
  font: var(--sr-type-label-font);
  letter-spacing: var(--sr-type-label-letter-spacing);
  border: 1.5px solid transparent;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.sr-button__icon {
  display: inline-flex;
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
}
.sr-button__icon svg {
  width: 100%;
  height: 100%;
}

/* ---------- Sizes (fixed height + horizontal padding, content centred) ---------- */
.sr-button--large {
  height: 48px;
  padding: 0 var(--space-6); /* 24px */
  border-radius: var(--radius-lg); /* 8px */
}
.sr-button--default {
  height: 40px;
  padding: 0 var(--space-6); /* 24px */
  border-radius: var(--radius-lg); /* 8px */
}
.sr-button--small {
  height: 32px;
  padding: 0 var(--space-3); /* 12px */
  border-radius: var(--radius-md); /* 4px */
}

/* ---------- Type: Primary ---------- */
.sr-button--primary {
  background-color: var(--sr-color-interactive-primary);
  color: var(--sr-color-text-on-fill);
}
.sr-button--primary:hover {
  background-color: var(--sr-color-interactive-primary-hover);
}

/* ---------- Type: Secondary ---------- */
.sr-button--secondary {
  background-color: transparent;
  color: var(--sr-color-interactive-primary);
  border-color: var(--sr-color-interactive-primary);
}
.sr-button--secondary:hover {
  background-color: var(--color-cyan-100);
}

/* ---------- Type: Ghost ---------- */
.sr-button--ghost {
  background-color: transparent;
  color: var(--sr-color-interactive-primary);
  border-color: transparent;
}
.sr-button--ghost:hover {
  background-color: var(--color-cyan-100);
  border-color: var(--sr-color-interactive-primary);
}

/* ---------- Type: Destructive (red — irreversible actions) ---------- */
.sr-button--destructive {
  background-color: var(--sr-color-interactive-destructive);
  color: var(--sr-color-text-on-fill);
}
.sr-button--destructive:hover {
  background-color: var(--color-red-700);
}

/* ---------- Focus (all types) — SR cyan ring, DDR-006 ---------- */
.sr-button:focus-visible {
  outline: none;
  box-shadow:
    0 0 0 2px var(--sr-color-surface-background),
    0 0 0 4px var(--sr-color-border-focus);
}

/* ---------- Disabled (all types) ---------- */
.sr-button:disabled,
.sr-button[aria-disabled="true"] {
  cursor: not-allowed;
}
.sr-button--primary:disabled,
.sr-button--primary[aria-disabled="true"] {
  background-color: var(--sr-color-interactive-disabled);
  color: var(--sr-color-text-on-fill);
}
.sr-button--secondary:disabled,
.sr-button--secondary[aria-disabled="true"],
.sr-button--ghost:disabled,
.sr-button--ghost[aria-disabled="true"] {
  background-color: transparent;
  color: var(--sr-color-text-disabled);
  border-color: var(--color-border-subtle);
}
.sr-button--ghost:disabled,
.sr-button--ghost[aria-disabled="true"] {
  border-color: transparent;
}
.sr-button--destructive:disabled,
.sr-button--destructive[aria-disabled="true"] {
  background-color: var(--sr-color-status-critical-surface);
  color: var(--sr-color-interactive-destructive);
}