@layer components {
  .btn,
  :where(button, input[type="submit"], input[type="button"], input[type="reset"]).btn {
    --btn-bg: var(--surface-panel);
    --btn-color: var(--color-ink);
    --btn-border: var(--color-border-strong);
    --btn-shadow: none;

    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.65rem;
    min-block-size: var(--control-height);
    padding-inline: 1rem;
    border: var(--pixel-border-width) solid var(--btn-border);
    border-radius: var(--radius-md);
    background: var(--btn-bg);
    box-shadow: var(--btn-shadow);
    color: var(--btn-color);
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: 600;
    line-height: 1;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    user-select: none;
    touch-action: manipulation;
  }

  .btn:hover {
    transform: none;
    background-color: var(--color-panel-strong);
  }

  .btn:active {
    transform: none;
    opacity: 0.85;
  }

  .btn:visited {
    color: var(--btn-color);
  }

  .btn:focus-visible {
    outline-offset: 4px;
  }

  .btn[disabled],
  .btn[aria-disabled="true"] {
    cursor: not-allowed;
    opacity: 0.7;
    transform: none;
    box-shadow: none;
  }

  @media (prefers-color-scheme: dark) {
    .btn {
      --btn-bg: var(--color-surface);
      --btn-color: var(--color-ink);
      --btn-border: var(--color-border-strong);
    }

    .btn:hover {
      background-color: var(--color-panel);
    }
  }

  .btn--primary {
    --btn-bg: var(--color-accent);
    --btn-color: var(--color-white);
    --btn-border: var(--color-accent);
  }

  .btn--primary:hover {
    background-color: color-mix(in srgb, var(--color-accent) 80%, black);
  }

  .btn--positive {
    --btn-bg: var(--color-positive);
    --btn-color: var(--color-white);
    --btn-border: var(--color-positive);
  }
  
  .btn--positive:hover {
    background-color: color-mix(in srgb, var(--color-positive) 80%, black);
  }

  .btn--negative {
    --btn-bg: var(--color-negative);
    --btn-color: var(--color-white);
    --btn-border: var(--color-negative);
  }
  
  .btn--negative:hover {
    background-color: color-mix(in srgb, var(--color-negative) 80%, black);
  }

  .btn--plain {
    --btn-bg: transparent;
    --btn-border: var(--color-border);
    --btn-shadow: none;
  }

  .btn--reversed {
    --btn-bg: var(--color-ink);
    --btn-color: var(--color-canvas);
    --btn-border: var(--color-ink);
  }

  .btn--reversed:hover {
    background-color: color-mix(in srgb, var(--color-ink) 80%, var(--color-canvas));
  }

  .btn--circle {
    inline-size: var(--control-height);
    min-inline-size: var(--control-height);
    block-size: var(--control-height);
    min-block-size: var(--control-height);
    padding: 0;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .btn--small {
    font-size: var(--text-sm);
    padding: 0.25rem 0.5rem;
    min-block-size: auto;
  }

  .btn-group {
    display: inline-flex;
    flex-wrap: wrap;
    gap: 0.75rem;
  }

  .btn-group > .btn {
    flex: 0 0 auto;
  }

  @media (max-width: 42rem) {
    .btn {
      min-inline-size: min(100%, 14rem);
    }

    .btn-group {
      inline-size: 100%;
    }
  }

  /* Kids Style Buttons */
  .btn--kids {
    font-size: 1.25rem;
    font-weight: 700;
    padding: 0.75rem 1.5rem;
    border-radius: 2rem;
    border: 4px solid var(--color-ink, #264653);
    box-shadow: 0 6px 0 var(--color-ink, #264653);
    color: var(--color-ink, #264653);
    transition: all 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--btn-kids-bg, #fff);
  }
  
  .btn--kids:hover {
    transform: scale(1.05) translateY(-4px);
    box-shadow: 0 10px 0 var(--color-ink, #264653);
    background-color: var(--btn-kids-bg, #fff);
  }

  .btn--kids:active {
    transform: scale(0.95) translateY(6px);
    box-shadow: 0 0 0 var(--color-ink, #264653);
  }
}