body {
  /* Form container */

  & form {
    margin-bottom: 1rem;
  }

  /* Fieldset and Legend */

  & fieldset {
    border-style: solid;
    border-width: 1px;
    border-color: var(--color-border);
  }

  & fieldset + fieldset {
    margin-top: 1.5rem;
  }

  & legend {
    width: auto;
    padding: 0 0.5rem;
    font-weight: 600;
    color: var(--color-foreground);
  }

  /* Form groups */

  & form div {
    margin-bottom: 1rem;
  }

  /* Labels */

  & label {
    display: inline-block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--color-foreground);
  }

  /* Basic inputs */

  & input[type="text"],
  & input[type="email"],
  & input[type="password"],
  & input[type="number"],
  & input[type="tel"],
  & input[type="url"],
  & input[type="search"] {
    display: block;
    width: 100%;
    height: 2rem;
    padding: 0.375rem 0.75rem;
    line-height: 1.5;
    color: var(--color-foreground);
    background-color: var(--color-background);
    background-clip: padding-box;
    border: 1px solid var(--color-border);
    border-radius: 0;
    transition: border-color 0.15s ease-in-out;
  }

  & input:focus {
    border-color: var(--color-accent);
    outline: 0;
    box-shadow: 0 0 0 0.2rem var(--color-accent);
  }

  /* Form controls with validation states */

  .is-valid {
    border-color: var(--color-success);
  }

  .is-valid:focus {
    border-color: var(--color-success);
    box-shadow: 0 0 0 0.2rem rgba(40, 167, 69, 0.25);
  }

  .is-invalid {
    border-color: var(--color-error);
  }

  .is-invalid:focus {
    border-color: var(--color-error);
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
  }

  /* Other input types */

  & input[type="date"],
  & input[type="time"],
  & input[type="datetime-local"] {
    display: block;
    width: 100%;
    height: 2rem;
    padding: 0.375rem 0.75rem;
    line-height: 1.5;
    color: var(--color-foreground);
    background-color: var(--color-background);
    background-clip: padding-box;
    border: 1px solid var(--color-border);
    border-radius: 0;
  }

  & input[type="radio"],
  & input[type="checkbox"] {
    margin-right: 0.5rem;
  }

  & input[type="color"] {
    height: 2rem;
    width: 4rem;
    padding: 0.2rem;
    background-color: var(--color-background);
    border: 1px solid var(--color-border);
  }

  & input[type="range"] {
    width: 100%;
  }

  /* Select elements */

  & select {
    display: block;
    width: 100%;
    height: 2rem;
    padding: 0.375rem 0.75rem;
    line-height: 1.5;
    color: var(--color-foreground);
    background-color: var(--color-background);
    background-clip: padding-box;
    border: 1px solid var(--color-border);
    border-radius: 0;
  }

  & select[multiple] {
    height: auto;
  }

  /* Textarea */

  & textarea {
    display: block;
    width: 100%;
    padding: 0.375rem 0.75rem;
    line-height: 1.5;
    color: var(--color-foreground);
    background-color: var(--color-background);
    background-clip: padding-box;
    border: 1px solid var(--color-border);
    border-radius: 0;
    resize: vertical;
  }

  /* Form layout using Grid */
  @media (min-width: 768px) {
    .form-grid {
      display: grid;
      grid-template-columns: 30% 70%;
      gap: 0.5rem;
      align-items: center;
    }

    .form-grid label {
      grid-column: 1;
      text-align: right;
      margin-bottom: 0;
    }

    .form-grid input,
    .form-grid select,
    .form-grid textarea {
      grid-column: 2;
    }
  }
}