/* ==========================================================================
   Voca Design System — Buttons
   Primary (coral) is the single point of visual pull per section — never
   more than one primary CTA competing for attention in the same view.
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-family-base);
  font-weight: 700;
  font-size: var(--text-base);
  line-height: 1;
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-default);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
}

.btn:active {
  transform: translateY(1px);
}

.btn:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
}

.btn--primary {
  background: var(--btn-primary-bg);
  color: var(--btn-primary-text);
}
.btn--primary:hover {
  background: var(--btn-primary-bg-hover);
}

.btn--secondary {
  background: var(--btn-secondary-bg);
  color: var(--btn-secondary-text);
}
.btn--secondary:hover {
  background: var(--btn-secondary-bg-hover);
}

.btn--tertiary {
  background: transparent;
  color: var(--btn-tertiary-text);
  border-color: var(--btn-tertiary-border);
}
.btn--tertiary:hover {
  background: var(--bg-page);
}

/* On dark/inverse backgrounds (e.g. the closing CTA band) */
.btn--on-accent {
  background: var(--bg-surface);
  color: var(--btn-primary-bg-hover);
  border-color: var(--bg-surface);
}
.btn--on-accent:hover {
  background: var(--bg-page);
}
.btn--on-accent-ghost {
  background: transparent;
  color: var(--text-on-accent);
  border-color: var(--text-on-accent);
}
.btn--on-accent-ghost:hover {
  background: color-mix(in srgb, var(--text-on-accent) 12%, transparent);
}

.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  border-radius: calc(var(--radius-default) * 0.75);
}