/* GFR layout, scoped so the other calculators keep their presentation. */
.gfr-body .app-main { max-width: 1120px; }
.gfr-toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-bottom: 24px; }
.gfr-toolbar a { padding: 10px; color: var(--accent); font-size: 14px; text-decoration: underline; }
.gfr-workspace { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: 28px; align-items: start; margin-bottom: 24px; }
.gfr-workspace > * { min-width: 0; }
.gfr-inputs { margin-bottom: 0; }
.gfr-body .app-card-title { line-height: 1.6; }
.gfr-body input, .gfr-body select, .gfr-body textarea { width: 100%; min-width: 0; min-height: 48px; font: inherit; font-size: 16px; color: var(--ink); background: var(--white); border: 1px solid var(--neutral-400); border-radius: 10px; padding: 11px 12px; }
.gfr-body input[aria-invalid=true], .gfr-body select[aria-invalid=true] { border: 2px solid var(--red); }
.gfr-body .field { margin-bottom: 18px; }
.gfr-body .field-label { line-height: 1.5; font-size: 14px; }
.gfr-body .field-hint, .gfr-error { font-size: 13px; line-height: 1.6; }
.gfr-error { color: var(--red); margin: 6px 0 12px; }
.gfr-two { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: 16px; }
.gfr-creatinine { display: grid; grid-template-columns: minmax(0,1fr) 124px; gap: 12px; }
.gfr-creatinine .field { margin-bottom: 0; }
.gfr-body #unit-status { margin: 8px 0 18px; }
.gfr-body #height-required { font-size: 12px; font-weight: 400; color: var(--ink-soft); }
.gfr-details { border: 1px solid var(--neutral-200); border-radius: 12px; background: var(--white); padding: 0 16px; margin: 16px 0 0; }
.gfr-details summary { cursor: pointer; padding: 13px 0; min-height: 48px; font-size: 14px; font-weight: 600; color: var(--ink); }
.gfr-details > p { margin: 0 0 14px; }
.gfr-details > textarea { margin-bottom: 16px; font-size: 14px; line-height: 1.6; min-height: 240px; resize: vertical; }
.gfr-empty, .gfr-message { border: 1px solid var(--neutral-200); border-radius: 14px; background: var(--white); padding: 22px; }
.gfr-empty { min-height: 220px; display: flex; flex-direction: column; justify-content: center; }
.gfr-empty h3, .gfr-message h3 { font-size: 17px; margin-bottom: 10px; }
.gfr-empty p, .gfr-message p, .gfr-message li { font-size: 14px; line-height: 1.65; }
.gfr-message { border-left: 4px solid var(--accent); }
.gfr-message ul { padding-left: 20px; }
.gfr-message li + li, .gfr-message p + p { margin-top: 10px; }
.gfr-body .result-card { padding: 28px 24px; margin: 0; }
.gfr-body .result-value { font-family: var(--font-sans); font-size: clamp(44px, 9vw, 68px); font-weight: 600; font-variant-numeric: tabular-nums; line-height: 1.15; overflow-wrap: anywhere; }
.gfr-stage { margin-top: 18px; font-size: 15px; font-weight: 600; color: var(--accent-dark); }
.gfr-stage.stage-G3a, .gfr-stage.stage-G3b { color: var(--amber-700); }
.gfr-stage.stage-G4, .gfr-stage.stage-G5 { color: var(--red); }
.gfr-scale { display: flex; gap: 4px; margin-top: 16px; }
.gfr-scale span { flex: 1; min-width: 0; padding: 5px 0; border-bottom: 3px solid var(--neutral-300); font-size: 12px; color: var(--ink-soft); }
.gfr-scale .current { border-color: var(--accent); font-weight: 700; color: var(--ink); background: var(--blue-50); border-radius: 4px 4px 0 0; }
.gfr-interpretation { margin-top: 14px; }
.gfr-interpretation p { font-size: 13px; line-height: 1.65; color: var(--ink-soft); margin: 8px 0; }
.gfr-secondary > div { border-top: 1px solid var(--neutral-200); padding: 16px 0; }
.gfr-secondary h4 { font-size: 14px; margin-bottom: 8px; }
.gfr-secondary p { font-size: 13px; line-height: 1.6; }
.gfr-secondary .gfr-secondary-value { font-size: 24px; font-weight: 600; margin-bottom: 6px; font-variant-numeric: tabular-nums; }
.gfr-secondary-value small { font-size: 12px; font-weight: 400; }
.gfr-copy-row { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; margin-top: 18px; }
.gfr-copy-row span { font-size: 13px; }
.gfr-body button, .gfr-body .btn-app { min-height: 44px; }
.gfr-body .app-lang button { min-width: 44px; min-height: 44px; }
.gfr-body .app-back { min-width: 44px; min-height: 44px; }
.gfr-body .app-theme { width: 44px; height: 44px; }
.gfr-body button:disabled { opacity: .5; cursor: not-allowed; }
.gfr-body :is(button, a, summary, select, input, textarea):focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.gfr-context-grid { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: 0 20px; margin-top: 20px; }
.gfr-body .gfr-contrast .app-details-body { padding-bottom: 22px; }
.gfr-body .gfr-contrast #contrast-result { margin-bottom: 16px; }
.gfr-body .stage-table { font-size: 13px; }
.gfr-body .stage-table td { white-space: normal; }
.gfr-body .stage-table caption { text-align: left; font-size: 13px; margin-bottom: 12px; }
.gfr-body .app-details a { text-decoration: underline; overflow-wrap: anywhere; }
.gfr-body .app-details code { white-space: normal; overflow-wrap: anywhere; }
.gfr-body #methods { scroll-margin-top: 90px; }
.gfr-notice { padding: 12px 16px; margin-bottom: 20px; border-left: 3px solid var(--accent); background: var(--blue-50); font-size: 14px; }
.gfr-sr { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
@media (max-width: 899px) {
  .gfr-workspace { grid-template-columns: 1fr; gap: 20px; }
  .gfr-body .app-main { max-width: 720px; }
}
@media (max-width: 560px) {
  .gfr-context-grid { grid-template-columns: 1fr; }
  .gfr-body .app-header { gap: 12px; }
  .gfr-body .app-header h1 { font-size: 26px; }
  .gfr-body .app-card { padding: 18px; }
  .gfr-body .gfr-two { gap: 12px; }
  .gfr-body .gfr-two > .field > .field-label { min-height: 39px; }
  .gfr-body .gfr-creatinine { grid-template-columns: minmax(0,1fr) 108px; gap: 10px; }
  .gfr-body .field-label { font-size: 13px; }
  .gfr-body input, .gfr-body select { padding-left: 10px; padding-right: 8px; }
}