.sizing-intro { padding: 60px 0 40px; background: var(--color-bg-soft); }
.sizing-intro .lead { margin-top: 16px; }
.sizing-section { padding-top: 40px; }
.sizing-form { max-width: 960px; margin: auto; }
.sizing-form fieldset { border: 1px solid var(--color-line); border-radius: var(--radius); padding: 22px; margin: 0 0 22px; background: var(--color-bg); min-width: 0; }
.sizing-form legend { color: var(--color-heading); font: 800 1.3rem/1.25 var(--font-head); padding: 0 10px; max-width: 100%; }
.sizing-form legend small { font-size: .8rem; font-weight: 400; color: var(--color-slate); }
.sizing-form label:not(.sizing-option):not(.sizing-consent) { display: block; font-weight: 600; min-width: 0; }
.sizing-form input:not([type="checkbox"]):not([type="radio"]), .sizing-form textarea, .sizing-form select {
  display: block; width: 100%; padding: 12px 14px; border-radius: var(--radius-sm); border: 1px solid var(--color-line);
  background: var(--color-heading); color: var(--color-bg); font: inherit; margin-top: 5px;
}
.sizing-form input::placeholder, .sizing-form textarea::placeholder { color: var(--color-bg-soft); }
.sizing-form input:focus-visible, .sizing-form textarea:focus-visible, .sizing-form select:focus-visible, .sizing-form button:focus-visible, .sizing-form a:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 2px; }
.sizing-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.sizing-grid .sizing-wide { grid-column: 1 / -1; }
.sizing-form b { color: var(--color-accent); }
.sizing-form p { color: var(--color-slate); margin-bottom: 12px; }
.sizing-note { margin: 0 0 18px; }
.sizing-checks { display: flex; flex-wrap: wrap; gap: 8px 22px; margin: 10px 0; }
.sizing-option { display: inline-flex; gap: 9px; align-items: center; cursor: pointer; padding: 5px 0; }
.sizing-option input, .sizing-consent input { width: 19px; height: 19px; accent-color: var(--color-cobalt); flex: none; }
.sizing-form .sizing-hint, .sizing-form .sizing-help { font-size: .85rem; color: var(--color-slate); margin: 2px 0 0; font-weight: 400; }
.sizing-subhead { color: var(--color-heading); font-size: 1.05rem; margin: 24px 0 12px; }
.sizing-considerations { margin: 30px 0; }
.sizing-considerations h2 { font-size: 1.25rem; margin-bottom: 8px; }
.sizing-consent { display: flex; align-items: flex-start; gap: 10px; margin: 24px 0; }
.sizing-error { border: 1px solid var(--color-warn); padding: 14px; border-radius: var(--radius-sm); margin-bottom: 20px; color: var(--color-ink); }
.sizing-error[hidden], [hidden] { display: none !important; }
.sizing-form .sizing-field-error { display: block; color: #b42318; font-size: .9rem; font-weight: 600; margin: 6px 0 0; }
#sizing-form input[aria-invalid="true"], #sizing-form select[aria-invalid="true"], #sizing-form textarea[aria-invalid="true"] { border: 2px solid #b42318; }
.sizing-form input[type="checkbox"][aria-invalid="true"] { box-shadow: 0 0 0 2px #b42318; }
.sizing-form button:disabled { opacity: .6; cursor: wait; }
@media(max-width: 640px) { .sizing-grid { grid-template-columns: 1fr; } .sizing-form fieldset { padding: 16px; } .sizing-form legend small { display: block; margin-top: 4px; } }