@layer components {
  .form-group {
    margin-bottom: var(--space-lg);
    border: none;
    padding: 0;

    & legend {
      font-weight: 700;
      font-size: var(--text-normal);
      margin-bottom: var(--space-sm);
    }

    & label {
      display: block;
      margin-bottom: var(--space-xs);
      font-weight: 600;
      font-size: var(--text-small);
      color: var(--color-ink-secondary);
      cursor: pointer;

      & input[type="radio"],
      & input[type="checkbox"] {
        margin-right: 0.5ch;
        min-height: auto;
        accent-color: var(--color-primary);
      }
    }

    & input[type="text"],
    & input[type="email"],
    & input[type="password"],
    & input[type="number"],
    & input[type="tel"],
    & textarea,
    & select {
      width: 100%;
      padding: 0.6em 0.85em;
      border: 1.5px solid var(--color-ink-border);
      border-radius: var(--radius-md);
      font-size: 1rem;
      background: var(--color-canvas);
      transition: border-color var(--duration-fast) ease,
                  box-shadow var(--duration-fast) ease;

      &:focus {
        outline: none;
        border-color: var(--color-primary);
        box-shadow: 0 0 0 3px var(--color-focus-ring);
      }

      &::placeholder { color: var(--color-ink-badge); }
    }

    & .form-hint {
      display: block;
      margin-top: var(--space-xs);
      font-size: var(--text-xs);
      color: var(--color-ink-secondary);
    }
  }

  /* Radio cards (delivery) */
  .radio-cards {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
  }

  .radio-card {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    border: 1.5px solid var(--color-ink-border);
    border-radius: var(--radius-md);
    background: var(--color-canvas);
    cursor: pointer;
    transition: border-color var(--duration-fast) ease,
                background var(--duration-fast) ease,
                box-shadow var(--duration-fast) ease;
    font-size: var(--text-small);

    & input[type="radio"] {
      accent-color: var(--color-primary);
      min-height: auto;
    }
  }

  .radio-card--selected {
    border-color: var(--color-primary);
    background: var(--color-primary-selected);
  }

  .radio-card--disabled {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
  }

  .radio-card__detail { flex: 1; }
  .radio-card__detail strong { display: block; font-size: var(--text-small); }
  .radio-card__detail span { font-size: var(--text-xs); color: var(--color-ink-secondary); }

  .radio-card__price {
    margin-left: auto;
    font-weight: 700;
    font-size: var(--text-small);
    color: var(--color-primary);
    white-space: nowrap;
  }

  /* Segmented control */
  .segmented-control {
    display: flex;
    border: 1.5px solid var(--color-ink-border);
    border-radius: var(--radius-md);
    overflow: hidden;
  }

  .segmented-control__item {
    flex: 1;
    padding: var(--space-sm) var(--space-md);
    text-align: center;
    font-size: var(--text-small);
    font-weight: 600;
    cursor: pointer;
    border: none;
    background: var(--color-canvas-alt);
    color: var(--color-ink-secondary);
    transition: all var(--duration-fast) ease;
    min-height: auto;

    & input { display: none; }
  }

  .segmented-control__item--active {
    background: var(--color-primary-light);
    color: var(--color-primary);
  }

  /* Payment cards */
  .payment-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-sm);
  }

  .payment-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-md) var(--space-sm);
    border: 2px solid var(--color-ink-border);
    border-radius: var(--radius-md);
    background: var(--color-canvas);
    cursor: pointer;
    transition: border-color var(--duration-fast) ease,
                background var(--duration-fast) ease,
                transform var(--duration-fast) var(--ease-out),
                box-shadow var(--duration-fast) ease;
    font-family: var(--font-display);
    font-size: var(--text-normal);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    text-align: center;
    min-height: 44px;

    & input[type="radio"] { display: none; }

    @media (any-hover: hover) {
      &:hover {
        transform: translateY(-2px);
        box-shadow: 0 4px 12px oklch(0% 0 0 / 0.08);
      }
    }
  }

  .payment-card__icon { font-size: 1.75rem; line-height: 1; }

  .payment-card--selected {
    border-color: var(--color-primary);
    background: var(--color-primary);
    color: white;
    box-shadow: 0 6px 16px oklch(45% 0.15 150 / 0.3);
  }

  .payment-card--disabled {
    opacity: 0.4;
    cursor: not-allowed;
  }

  .payment-note {
    font-size: var(--text-xs);
    color: var(--color-ink-secondary);
    font-style: italic;
    margin-top: var(--space-xs);
  }

  /* Details toggle */
  .checkout-details-toggle {
    font-weight: 600;
    font-size: var(--text-small);
    color: var(--color-ink-secondary);
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    gap: var(--space-xs);

    &::before {
      content: "+";
      font-weight: 700;
      font-size: var(--text-normal);
      color: var(--color-primary);
    }

    details[open] > &::before { content: "\2212"; }
  }

  .checkout-details-toggle::-webkit-details-marker { display: none; }

  /* Login */
  .login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 60dvh;
    padding: var(--space-xl) var(--main-padding);
  }

  .login-card__logo {
    display: block;
    height: 80px;
    width: auto;
    margin: 0 auto var(--space-lg);
  }

  .login-card {
    width: 100%;
    max-width: 22rem;
    padding: var(--space-2xl);
    background: var(--color-canvas);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);

    & h1 {
      text-align: center;
      margin-bottom: var(--space-xs);
    }

    & > p {
      text-align: center;
      margin-bottom: var(--space-xl);
    }
  }

  .login-form {
    & .form-group { margin-bottom: var(--space-md); }
  }

  /* Modal */
  .modal-overlay {
    position: fixed;
    inset: 0;
    background: var(--color-overlay);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-tooltip);
    animation: modal-overlay-in var(--duration-slow) var(--ease-out);
  }

  @keyframes modal-overlay-in {
    from { opacity: 0; }
  }

  .modal {
    background: var(--color-canvas);
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
    max-width: 28rem;
    box-shadow: var(--shadow-xl);
    margin: var(--main-padding);
    animation: modal-in var(--duration-slow) var(--ease-out);

    & h3 { margin-bottom: var(--space-sm); }
    & p { margin-bottom: var(--space-md); color: var(--color-ink-secondary); font-size: var(--text-small); }

    &__icon {
      font-size: 2rem;
      line-height: 1;
      margin-bottom: var(--space-sm);
    }
  }

  .modal__actions {
    display: flex;
    flex-direction: column-reverse;
    gap: var(--space-sm);
    margin-top: var(--space-md);

    & > *, & > .button_to { flex: 1; }
    & .btn { width: 100%; justify-content: center; }

    @media (min-width: 480px) {
      flex-direction: row;
      justify-content: center;
      & > *, & > .button_to { flex: 0 auto; }
      & .btn { width: auto; }
    }
  }

  @keyframes modal-in {
    from { opacity: 0; transform: translateY(8px) scale(0.97); }
  }

  /* Conflict variant — warm amber tint */
  .modal--conflict {
    border-top: 3px solid var(--color-accent-border);
    background: linear-gradient(to bottom, var(--color-accent-light) 0%, var(--color-canvas) 4rem);
  }

  /* ── Password strength meter ─────────────────────── */
  .password-requirements {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--space-lg, 1.5rem);
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
  }

  .password-req {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--text-small, 0.85rem);
    color: var(--color-ink-secondary, #666);
    transition: color 150ms ease;
  }

  .password-req__icon {
    width: 1rem;
    text-align: center;
    flex-shrink: 0;
    color: var(--color-ink-badge, #999);
    transition: color 150ms ease;
  }

  .password-req--met {
    color: var(--color-success, #1D9E75);

    & .password-req__icon {
      color: var(--color-success, #1D9E75);
      font-weight: 700;
    }
  }
}