.btn {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  /* Feature 5: inline-flex so icon + label align side-by-side */
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: background var(--duration-fast) var(--ease-standard),
    border-color var(--duration-fast) var(--ease-standard);
}

.btn__icon {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  line-height: 1;
}

.btn--primary {
  background: var(--accent-copper);
  color: var(--bg-base);
}
.btn--primary:hover:not(:disabled) {
  background: var(--accent-copper-bright);
}

.btn--secondary {
  background: var(--bg-surface-2);
  color: var(--text-primary);
  border-color: var(--border-subtle);
}
.btn--secondary:hover:not(:disabled) {
  border-color: var(--border-strong);
}

.btn--quiet {
  background: transparent;
  color: var(--text-secondary);
}
.btn--quiet:hover:not(:disabled) {
  color: var(--text-primary);
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}