@layer components {
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--sp-8);
    min-height: 44px;
    padding: var(--sp-12) var(--sp-16);
    border: 1px solid transparent;
    border-radius: var(--r-8);
    font-size: var(--fs-body-2);
    font-weight: 500;
    line-height: 1.2;
    text-decoration: none;
    white-space: nowrap;
    cursor: pointer;
    transition:
      background-color var(--dur) var(--ease),
      border-color var(--dur) var(--ease),
      color var(--dur) var(--ease),
      opacity var(--dur) var(--ease);
  }

  .btn--block { width: 100%; }

  /* --- primary --- */
  .btn--primary {
    background: var(--control-primary);
    color: var(--label-primary);
  }
  .btn--primary:hover  { background: color-mix(in srgb, var(--control-primary) 88%, #fff); }
  .btn--primary:active  { background: color-mix(in srgb, var(--control-primary) 82%, #000); }

  /* --- outlined --- */
  .btn--outlined {
    background: transparent;
    border-color: var(--control-outlined);
    color: var(--label-primary);
  }
  .btn--outlined:hover  { background: var(--surface-glass-1); }
  .btn--outlined:active { background: var(--surface-glass-2); }

  /* --- text --- */
  .btn--text {
    padding-inline: 0;
    background: transparent;
    color: var(--label-primary);
  }
  .btn--text:hover  { color: var(--accent-primary); }

  .btn[disabled],
  .btn[aria-disabled="true"] {
    opacity: .4;
    pointer-events: none;
  }

  .icon { display: block; flex: none; fill: currentColor; }
}