@layer components {
  /* Site-wide banner styles (grace period, announcements, etc.) */
  .banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    margin-bottom: var(--space-md);
    border-radius: var(--radius-md);
    border: 1px solid;
    animation: banner-slide-in var(--duration-normal) var(--ease-out);
  }

  @keyframes banner-slide-in {
    from {
      opacity: 0;
      transform: translateY(-0.5rem);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .banner--dismissing {
    animation: banner-slide-out var(--duration-fast) var(--ease-out) forwards;
  }

  @keyframes banner-slide-out {
    from {
      opacity: 1;
      transform: translateY(0);
    }
    to {
      opacity: 0;
      transform: translateY(-0.5rem);
    }
  }

  /* Warning variant - used for grace periods */
  .banner--warning {
    background-color: var(--color-warning-light);
    color: var(--color-warning-dark, oklch(35% 0.15 80));
    border-color: var(--color-warning-border, oklch(80% 0.1 80));
  }

  /* Info variant */
  .banner--info {
    background-color: var(--color-primary-subtle);
    color: var(--color-primary-dark);
    border-color: var(--color-primary-muted);
  }

  /* Error variant - used for payment failures */
  .banner--error {
    background-color: var(--color-error-light);
    color: var(--color-error-dark, oklch(35% 0.2 25));
    border-color: var(--color-error-border, oklch(80% 0.08 25));
  }

  .banner__content {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex: 1;
    min-width: 0;
  }

  .banner__icon {
    flex-shrink: 0;
    width: 1.5rem;
    align-self: stretch;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .banner__icon svg {
    width: 100%;
    height: 100%;
  }

  .banner__text {
    flex: 1;
    min-width: 0;
  }

  .banner__title {
    font-size: 0.9375rem;
    font-weight: 700;
    margin: 0 0 var(--space-2xs) 0;
    text-transform: uppercase;
    letter-spacing: 0.025em;
  }

  .banner__message {
    font-size: 0.9375rem;
    font-weight: 500;
    line-height: 1.5;
    margin: 0;
  }

  .banner__actions {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex-shrink: 0;
  }

  .banner__dismiss {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 1.75rem;
    height: 1.75rem;
    padding: 0;
    border: none;
    background: transparent;
    color: currentColor;
    opacity: 0.6;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: opacity var(--duration-fast) var(--ease-out),
                background-color var(--duration-fast) var(--ease-out);
  }

  .banner__dismiss:hover {
    opacity: 1;
    background-color: rgba(0, 0, 0, 0.1);
  }

  .banner__dismiss svg {
    width: 1rem;
    height: 1rem;
  }

  /* Responsive banner */
  @media (max-width: 640px) {
    .banner {
      flex-direction: column;
      align-items: stretch;
      gap: var(--space-sm);
    }

    .banner__content {
      align-items: flex-start;
    }

    .banner__actions {
      justify-content: space-between;
    }

    .banner__dismiss {
      order: -1;
      align-self: flex-end;
      margin-top: calc(-1 * var(--space-xs));
      margin-right: calc(-1 * var(--space-xs));
    }
  }
}