[hidden] {
  display: none !important;
}

:root {
  --fit-header-height: 64px;
  --fit-row-height: 88px;
  --fit-surface-y: clamp(18px, 3.6vh, 36px);
  --fit-logo-progress: 0deg;
}

html,
body {
  width: 100%;
  height: 100%;
  overflow: hidden;
}

body {
  margin: 0;
  background: var(--paper);
}

.case-shell {
  display: grid;
  grid-template-rows: var(--fit-header-height) minmax(0, 1fr);
  width: 100%;
  height: 100dvh;
  min-height: 0;
  overflow: hidden;
  background: var(--paper);
}

.fit-return {
  display: flex;
  align-items: center;
  justify-content: center;
  width: min(1600px, calc(100% - (var(--site-gutter, 24px) * 2)));
  height: var(--fit-header-height);
  margin: 0 auto;
}

.fit-return__button,
.fit-return__brand {
  position: relative;
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  color: var(--ink);
  font-family: var(--bv-font-mono);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
}

.fit-return__button {
  width: max-content;
}

.fit-return__button::after,
.fit-return__brand::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 7px;
  left: 0;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 240ms cubic-bezier(0.22, 1, 0.36, 1);
}

.fit-return__button:hover::after,
.fit-return__button:focus-visible::after,
.fit-return__brand:hover::after,
.fit-return__brand:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.fit-return__button:focus-visible,
.fit-return__brand:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.fit-return__brand {
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.fit-return__brand img {
  width: 44px;
  height: 44px;
  object-fit: contain;
  transform: rotate(var(--fit-logo-progress));
  transition: transform 520ms cubic-bezier(0.16, 1, 0.3, 1);
}

.fit-return__brand:hover img,
.fit-return__brand:focus-visible img {
  transform: rotate(calc(var(--fit-logo-progress) - 8deg)) translateY(-1px);
}

.case-shell > main {
  min-height: 0;
  overflow: hidden;
}

/* Question rail: back/forward + ruler-tick progress instrument */
.fit-rail {
  position: fixed;
  bottom: clamp(16px, 3.2vh, 30px);
  left: 50%;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 24px);
  opacity: 0;
  pointer-events: none;
  transform: translateX(-50%) translateY(8px);
  transition:
    opacity 360ms cubic-bezier(0.22, 1, 0.36, 1),
    transform 360ms cubic-bezier(0.22, 1, 0.36, 1);
}

body[data-fit-state="question"] .fit-rail {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.fit-rail__arrow {
  min-width: 34px;
  min-height: 34px;
  padding: 0;
  border: 0;
  background: none;
  color: var(--muted);
  cursor: pointer;
  font-family: var(--bv-font-mono);
  font-size: 0.875rem;
  transition:
    color 180ms cubic-bezier(0.22, 1, 0.36, 1),
    opacity 220ms cubic-bezier(0.22, 1, 0.36, 1);
}

.fit-rail__arrow:hover,
.fit-rail__arrow:focus-visible {
  color: var(--ink);
}

.fit-rail__arrow:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.fit-rail__arrow[disabled] {
  opacity: 0.22;
  pointer-events: none;
}

.fit-rail__ticks {
  display: flex;
  align-items: center;
  gap: 7px;
}

.fit-rail__tick {
  position: relative;
  width: 12px;
  height: 24px;
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
}

.fit-rail__tick::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 1px;
  height: 10px;
  background: var(--ink);
  opacity: 0.2;
  transform: translate(-50%, -50%);
  transition:
    height 300ms cubic-bezier(0.16, 1, 0.3, 1),
    width 300ms cubic-bezier(0.16, 1, 0.3, 1),
    opacity 220ms cubic-bezier(0.22, 1, 0.36, 1);
}

.fit-rail__tick.is-visited::before {
  opacity: 0.6;
}

.fit-rail__tick.is-visited:hover::before {
  height: 15px;
  opacity: 1;
}

.fit-rail__tick.is-current {
  cursor: default;
}

.fit-rail__tick.is-current::before {
  width: 2px;
  height: 18px;
  opacity: 1;
}

.fit-rail__tick[disabled]:not(.is-current) {
  cursor: default;
}

.fit-rail__count {
  min-width: 56px;
  color: var(--muted);
  font-family: var(--bv-font-mono);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-align: center;
}

body[data-fit-state="question"] .fit__form {
  padding-bottom: clamp(52px, 8vh, 80px);
}

.fit {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  width: min(1520px, calc(100% - clamp(72px, 12vw, 160px)));
  height: 100%;
  min-height: 0;
  margin: 0 auto;
}

.fit__body {
  position: relative;
  width: 100%;
  height: 100%;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
}

.fit__intro,
.fit__form,
.fit__result {
  width: 100%;
  height: 100%;
  min-width: 0;
  min-height: 0;
  padding: var(--fit-surface-y) 0;
  overflow: hidden;
}

.fit__intro {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.fit__intro h1 {
  max-width: 12ch;
  margin: 0 auto;
  color: var(--ink);
  font-size: clamp(4rem, 9.4vw, 10rem);
  font-weight: 800;
  letter-spacing: -0.06em;
  line-height: 0.91;
  text-wrap: balance;
}

.fit__intro-copy {
  max-width: 52ch;
  margin: clamp(26px, 4.4vh, 44px) auto 0;
  color: var(--ink-2);
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  font-weight: 500;
  line-height: 1.5;
  text-wrap: pretty;
}

.fit__intro-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  margin-top: clamp(30px, 5vh, 52px);
}

.fit__form {
  position: relative;
  display: flex;
  flex-direction: column;
}

.fit__step {
  display: flex;
  min-width: 0;
  min-height: 0;
  flex: 1;
  flex-direction: column;
  justify-content: flex-start;
  margin: 0;
  padding: clamp(24px, 3.2vh, 36px) 0 clamp(24px, 3.2vh, 36px);
  border: 0;
}

.fit__legend {
  display: block;
  width: 100%;
  padding: 0;
  text-align: center;
}

.fit__question {
  display: block;
  max-width: 21ch;
  margin: 0 auto;
  color: var(--ink);
  font-size: clamp(5.5rem, 6.9vw, 9rem);
  font-weight: 800;
  letter-spacing: -0.064em;
  line-height: 0.9;
  text-wrap: balance;
}

.fit__description {
  max-width: 60ch;
  margin: clamp(12px, 1.8vh, 18px) auto 0;
  color: var(--muted);
  font-size: 1.375rem;
  font-weight: 500;
  line-height: 1.45;
  text-align: center;
}

.fit__controls {
  min-width: 0;
  min-height: 0;
  margin-top: clamp(26px, 3.5vh, 38px);
}

.fit__controls[data-control-type="multi"] {
  display: flex;
  min-height: 0;
  flex: 1;
  flex-direction: column;
}

.fit__controls[data-control-type="single"] {
  display: flex;
  min-height: 0;
  flex: 1;
}

.fit__controls[data-control-type="single"] .fit__options {
  width: 100%;
  min-height: 0;
  flex: 1;
  align-content: space-around;
}

.fit__options,
.fit__choice-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  grid-auto-rows: minmax(var(--fit-row-height), auto);
  column-gap: clamp(56px, 6vw, 104px);
}

.fit__controls:is(
  [data-option-count="6"],
  [data-option-count="7"],
  [data-option-count="8"],
  [data-option-count="9"],
  [data-option-count="10"],
  [data-option-count="11"]
) .fit__options,
.fit__controls:is(
  [data-option-count="6"],
  [data-option-count="7"],
  [data-option-count="8"],
  [data-option-count="9"],
  [data-option-count="10"],
  [data-option-count="11"]
) .fit__choice-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

@media (min-width: 1000px) {
  .fit__controls[data-option-count="11"] .fit__choice-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    column-gap: clamp(28px, 3.5vw, 52px);
  }
}

.fit__options button,
.fit__option {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 18px;
  align-items: center;
  gap: clamp(12px, 1.6vw, 22px);
  width: 100%;
  min-width: 0;
  min-height: var(--fit-row-height);
  margin: 0;
  padding: 16px 2px;
  border: 0;
  background: transparent;
  color: var(--ink);
  font-family: var(--bv-font-sans);
  font-size: clamp(1.5rem, 1.62vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.018em;
  line-height: 1.18;
  text-align: left;
}

.fit__options button {
  cursor: pointer;
  transition: color 180ms cubic-bezier(0.22, 1, 0.36, 1), opacity 220ms cubic-bezier(0.22, 1, 0.36, 1), transform 280ms cubic-bezier(0.16, 1, 0.3, 1);
}

.fit__option-copy {
  position: relative;
  display: block;
  width: fit-content;
  min-width: 0;
  transition: transform 260ms cubic-bezier(0.22, 1, 0.36, 1);
}

.fit__option-copy::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -7px;
  left: 0;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 300ms cubic-bezier(0.16, 1, 0.3, 1);
}

.fit__options button::after {
  content: "\2192";
  justify-self: end;
  color: var(--ink);
  font-family: var(--bv-font-mono);
  font-size: 1.125rem;
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity 180ms cubic-bezier(0.22, 1, 0.36, 1), transform 180ms cubic-bezier(0.22, 1, 0.36, 1);
}

.fit__options button:hover::after,
.fit__options button:focus-visible::after {
  opacity: 1;
  transform: none;
}

.fit__options button:focus-visible,
.fit__option:has(input:focus-visible) {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.fit__option {
  grid-template-columns: 15px minmax(0, 1fr);
  cursor: pointer;
  transition: opacity 220ms cubic-bezier(0.22, 1, 0.36, 1), transform 280ms cubic-bezier(0.16, 1, 0.3, 1);
}

.fit__option input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.fit__option-marker {
  width: 14px;
  height: 14px;
  border: 1px solid var(--line-strong);
  background: transparent;
  transition: transform 260ms cubic-bezier(0.16, 1, 0.3, 1), background-color 180ms cubic-bezier(0.22, 1, 0.36, 1), box-shadow 180ms cubic-bezier(0.22, 1, 0.36, 1);
}

.fit__option input[type="radio"] + .fit__option-marker {
  border-radius: 50%;
}

.fit__option input[type="checkbox"]:checked + .fit__option-marker {
  background: var(--ink);
  box-shadow: inset 0 0 0 3px var(--paper);
  transform: rotate(45deg) scale(0.78);
}

.fit__option input[type="radio"]:checked + .fit__option-marker {
  background: var(--ink);
  box-shadow: inset 0 0 0 3px var(--paper);
  transform: scale(0.86);
}

.fit__option:hover input:not(:checked) + .fit__option-marker {
  transform: rotate(12deg);
}

.fit__options button:hover .fit__option-copy::after,
.fit__options button:focus-visible .fit__option-copy::after,
.fit__options button.fit__option--selected .fit__option-copy::after,
.fit__option:hover .fit__option-copy::after,
.fit__option:has(input:focus-visible) .fit__option-copy::after,
.fit__option:has(input:checked) .fit__option-copy::after {
  transform: scaleX(1);
  transform-origin: left;
}

.fit__options button.fit__option--selected::after {
  opacity: 1;
  transform: none;
}

.fit__controls[data-control-type="contact"] {
  margin-top: clamp(44px, 7vh, 72px);
}

@media (hover: hover) and (pointer: fine) {
  .fit__options:has(button:hover) button:not(:hover):not(.fit__option--selected),
  .fit__choice-list:has(.fit__option:hover) .fit__option:not(:hover):not(:has(input:checked)) {
    opacity: 0.25;
  }

  .fit__options button:hover .fit__option-copy,
  .fit__options button:focus-visible .fit__option-copy,
  .fit__option:hover .fit__option-copy,
  .fit__option:has(input:focus-visible) .fit__option-copy,
  .fit__option:has(input:checked) .fit__option-copy {
    transform: translateX(9px);
  }
}

.fit__note {
  max-width: 70ch;
  margin: 9px 0 0;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 500;
  line-height: 1.4;
}

.fit__note a {
  color: inherit;
  text-underline-offset: 3px;
}

.fit__field {
  display: grid;
  min-width: 0;
  gap: 4px;
}

.fit__field > span {
  color: var(--muted);
  font-family: var(--bv-font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.fit__field > span em {
  font-style: normal;
  opacity: 0.62;
}

.fit__field input,
.fit__field textarea {
  width: 100%;
  min-width: 0;
  border: 0;
  border-bottom: 1px solid var(--line-strong);
  border-radius: 0;
  outline: 0;
  background: transparent;
  color: var(--ink);
  font-family: var(--bv-font-sans);
  font-size: 1.25rem;
  font-weight: 500;
  transition: border-color 200ms cubic-bezier(0.22, 1, 0.36, 1), box-shadow 240ms cubic-bezier(0.22, 1, 0.36, 1);
}

.fit__field input {
  height: 38px;
  padding: 0;
}

.fit__field textarea {
  height: clamp(108px, 19vh, 148px);
  padding: 8px 0;
  line-height: 1.5;
  resize: none;
}

.fit__field input:focus,
.fit__field textarea:focus {
  border-bottom-color: var(--ink);
  box-shadow: inset 0 -1px 0 var(--ink);
}

.fit__field small {
  color: var(--muted);
  font-family: var(--bv-font-mono);
  font-size: 0.5625rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.fit__conditional {
  max-width: 680px;
  margin-top: 10px;
}

.fit__fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(14px, 2.5vh, 22px) clamp(28px, 5vw, 64px);
}

.fit__honeypot {
  position: absolute !important;
  left: -10000px !important;
  width: 1px !important;
  height: 1px !important;
  overflow: hidden !important;
}

.fit__error {
  position: absolute;
  right: 0;
  bottom: var(--fit-surface-y);
  z-index: 3;
  max-width: min(390px, calc(100% - 20px));
  margin: 0;
  padding: 10px 12px;
  border: 1px solid var(--line-strong);
  background: var(--paper-raised);
  color: var(--ink);
  font-size: 0.8125rem;
  font-weight: 600;
  line-height: 1.35;
}

.fit__actions {
  display: flex;
  gap: 10px;
  margin-top: clamp(14px, 2.3vh, 22px);
}

.fit-button {
  display: inline-flex;
  width: max-content;
  min-width: 190px;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--ink);
  padding: 0 22px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  font-family: var(--bv-font-mono);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: background-color 180ms cubic-bezier(0.22, 1, 0.36, 1), color 180ms cubic-bezier(0.22, 1, 0.36, 1), transform 180ms cubic-bezier(0.16, 1, 0.3, 1);
}

.fit-button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.fit-button--primary {
  background: var(--ink);
  color: var(--paper-raised);
}

.fit-button--primary:hover,
.fit-button--primary:focus-visible {
  background: var(--paper-raised);
  color: var(--ink);
  transform: translateY(-2px);
}

.fit-button--pressed {
  transform: scale(0.97);
}

.fit-button:disabled {
  cursor: wait;
  opacity: 0.5;
}

.fit__result {
  display: flex;
  max-width: 900px;
  flex-direction: column;
  justify-content: center;
}

.fit__result-title {
  max-width: 16ch;
  margin: clamp(15px, 2.5vh, 24px) 0 0;
  color: var(--ink);
  font-size: clamp(3rem, 6.5vw, 5.75rem);
  font-weight: 800;
  letter-spacing: -0.055em;
  line-height: 0.94;
  text-wrap: balance;
}

.fit__result-copy {
  max-width: 61ch;
  margin: clamp(20px, 3.3vh, 32px) 0 0;
  color: var(--ink-2);
  font-size: clamp(1rem, 1.45vw, 1.1875rem);
  font-weight: 500;
  line-height: 1.5;
  text-wrap: pretty;
}

.fit__submit-status {
  max-width: 60ch;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 0.8125rem;
  font-weight: 600;
}

.fit__noscript {
  display: flex;
  height: 100%;
  max-width: 700px;
  flex-direction: column;
  justify-content: center;
}

.fit__noscript h1 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(3rem, 6vw, 5.5rem);
  letter-spacing: -0.05em;
  line-height: 0.95;
}

.fit__noscript p {
  margin-top: 22px;
  color: var(--ink-2);
  font-size: 1rem;
  line-height: 1.5;
}

.fit__intro,
.fit__form,
.fit__result {
  animation: fit-enter 420ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.fit__intro {
  transition: opacity 200ms cubic-bezier(0.22, 1, 0.36, 1), transform 240ms cubic-bezier(0.16, 1, 0.3, 1);
}

.fit__intro--leaving {
  opacity: 0;
  transform: translateY(-12px);
}

.fit__form {
  --fit-exit-y: -12px;
}

.fit__form[data-transition-direction="back"] {
  --fit-exit-y: 12px;
}

.fit__question,
.fit__description,
.fit__controls > .fit__field,
.fit__fields {
  transition: opacity 180ms cubic-bezier(0.22, 1, 0.36, 1), transform 220ms cubic-bezier(0.16, 1, 0.3, 1);
}

.fit__form--leaving {
  pointer-events: none;
}

.fit__form--leaving .fit__question,
.fit__form--leaving .fit__description,
.fit__form--leaving .fit__options button,
.fit__form--leaving .fit__option,
.fit__form--leaving .fit__controls > .fit__field,
.fit__form--leaving .fit__fields {
  opacity: 0;
  transform: translateY(var(--fit-exit-y));
}

.fit__form--leaving .fit__options button.fit__option--chosen {
  transform: translateX(18px);
}

@keyframes fit-enter {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.fit__form--entering .fit__question {
  animation: fit-question-enter 480ms cubic-bezier(0.16, 1, 0.3, 1) both;
}

.fit__form--entering .fit__description {
  animation: fit-option-enter 400ms 70ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.fit__form--entering .fit__options button,
.fit__form--entering .fit__option {
  animation: fit-option-enter 420ms cubic-bezier(0.22, 1, 0.36, 1) both;
  animation-delay: calc(80ms + (var(--fit-option-index, 0) * 34ms));
}

.fit__form--entering .fit__controls > .fit__field,
.fit__form--entering .fit__fields {
  animation: fit-option-enter 420ms 100ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes fit-question-enter {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes fit-option-enter {
  from {
    opacity: 0;
    transform: translateY(9px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 860px) {
  :root {
    --fit-header-height: 56px;
  }

  .fit__body {
    width: 100%;
  }
}

@media (max-width: 620px) {
  :root {
    --fit-header-height: 50px;
    --fit-row-height: 52px;
    --fit-surface-y: 10px;
  }

  .fit-return {
    gap: 8px;
    width: calc(100% - 28px);
  }

  .fit-return__button,
  .fit-return__brand {
    min-height: 38px;
    font-size: 0.5625rem;
    letter-spacing: 0.1em;
  }

  .fit-return__brand span {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
  }

  .fit-return__brand img {
    width: 37px;
    height: 37px;
  }

  .fit {
    width: calc(100% - 40px);
  }

  .fit__intro h1 {
    max-width: 10ch;
    font-size: clamp(2.8rem, 13vw, 4.1rem);
  }

  .fit__intro-copy {
    margin-top: 20px;
    font-size: 0.9375rem;
  }

  .fit__intro-actions {
    margin-top: 22px;
  }

  .fit__back {
    min-height: 22px;
    margin-bottom: 6px;
  }

  .fit__question {
    max-width: 22ch;
    font-size: clamp(2.4rem, 10.5vw, 3.25rem);
    line-height: 0.96;
  }

  .fit__description {
    margin-top: 5px;
    font-size: 0.875rem;
    line-height: 1.3;
  }

  .fit__controls {
    margin-top: 9px;
  }

  .fit__options,
  .fit__choice-list {
    column-gap: 14px;
  }

  .fit__options button,
  .fit__option {
    gap: 6px;
    min-height: var(--fit-row-height);
    padding: 5px 1px;
    font-size: 0.9375rem;
    line-height: 1.18;
  }

  .fit__option {
    grid-template-columns: 12px minmax(0, 1fr);
  }

  .fit__option-marker {
    width: 11px;
    height: 11px;
  }

  .fit__note {
    margin-top: 5px;
    font-size: 0.625rem;
    line-height: 1.25;
  }

  .fit__fields {
    gap: 10px 18px;
  }

  .fit__field input {
    height: 32px;
    font-size: 1rem;
  }

  .fit__field textarea {
    height: 104px;
    font-size: 1rem;
  }

  .fit__actions {
    margin-top: 9px;
  }

  .fit-button {
    min-height: 44px;
  }

  .fit__result-title {
    font-size: clamp(2.7rem, 12vw, 4rem);
  }
}

@media (min-width: 621px) and (max-height: 900px) {
  :root {
    --fit-row-height: 62px;
    --fit-surface-y: 14px;
  }

  .fit__step {
    padding-top: 26px;
  }

  .fit__question {
    font-size: clamp(4.2rem, 6.3vw, 6.75rem);
  }

  .fit__description {
    font-size: 1.125rem;
  }

  .fit__controls {
    margin-top: 15px;
  }

  .fit__options button,
  .fit__option {
    padding-top: 8px;
    padding-bottom: 8px;
    font-size: 1.375rem;
  }
}

@media (min-width: 621px) and (max-height: 780px) {
  :root {
    --fit-header-height: 52px;
    --fit-row-height: 64px;
    --fit-surface-y: 12px;
  }

  .fit__question {
    font-size: clamp(4.25rem, 6.6vw, 6rem);
  }

  .fit__description {
    font-size: 1.25rem;
  }

  .fit__controls {
    margin-top: 10px;
  }

  .fit__options button,
  .fit__option {
    min-height: var(--fit-row-height);
    padding-top: 5px;
    padding-bottom: 5px;
    font-size: 1.5rem;
  }

  .fit__intro h1 {
    font-size: clamp(3.2rem, 6.2vw, 5.35rem);
  }

  .fit__intro-copy {
    margin-top: 20px;
  }

  .fit__intro-actions {
    margin-top: 24px;
  }

  .fit__actions {
    margin-top: 9px;
  }

  .fit-button {
    min-height: 42px;
  }
}

@media (min-width: 621px) and (max-height: 680px) {
  :root {
    --fit-header-height: 46px;
    --fit-row-height: 46px;
    --fit-surface-y: 7px;
  }

  .fit__description,
  .fit__controls[data-control-type="multi"] .fit__note {
    display: none;
  }

  .fit__back {
    min-height: 19px;
    margin-bottom: 3px;
  }

  .fit__question {
    font-size: clamp(2.8rem, 4.7vw, 4rem);
  }

  .fit__controls {
    margin-top: 6px;
  }

  .fit__options button,
  .fit__option {
    font-size: 1rem;
  }

  .fit__field textarea {
    height: 86px;
  }

  .fit__fields {
    gap-block: 7px;
  }

  .fit__field input {
    height: 29px;
  }

  .fit__intro h1 {
    font-size: clamp(2.8rem, 5.2vw, 4.3rem);
  }

  .fit__intro-copy {
    margin-top: 15px;
  }

  .fit__intro-actions {
    margin-top: 18px;
  }
}

@media (max-width: 620px) and (max-height: 780px) {
  :root {
    --fit-row-height: 48px;
    --fit-surface-y: 8px;
  }

  .fit__step {
    padding-top: 8px;
  }

  .fit__question {
    font-size: clamp(2.3rem, 10vw, 2.75rem);
  }

  .fit__options button,
  .fit__option {
    font-size: 0.9rem;
  }
}

@media (max-width: 620px) and (max-height: 680px) {
  :root {
    --fit-header-height: 46px;
    --fit-row-height: 44px;
    --fit-surface-y: 6px;
  }

  .fit__description,
  .fit__controls[data-control-type="multi"] .fit__note {
    display: none;
  }

  .fit__question {
    font-size: 2.5rem;
  }

  .fit__options button,
  .fit__option {
    font-size: 0.8125rem;
  }
}

/* Mobile application surface: preserve one question at a time without
   compressing dense steps into unreadable two-column ledgers. */
@media (max-width: 760px), (max-width: 960px) and (max-height: 520px) {
  :root {
    --fit-header-height: calc(52px + env(safe-area-inset-top));
    --fit-row-height: 56px;
    --fit-surface-y: 18px;
  }

  .case-shell {
    height: 100svh;
    height: 100dvh;
  }

  .fit-return {
    width: calc(100% - 32px);
    padding-top: env(safe-area-inset-top);
  }

  .fit-return__button,
  .fit-return__brand {
    min-height: 44px;
  }

  .fit-return__brand span {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
  }

  .fit-return__brand img {
    width: 40px;
    height: 40px;
  }

  .fit {
    width: calc(100% - 36px);
  }

  .fit__body {
    overflow: hidden;
  }

  .fit__intro,
  .fit__form,
  .fit__result {
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior-y: contain;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }

  .fit__intro::-webkit-scrollbar,
  .fit__form::-webkit-scrollbar,
  .fit__result::-webkit-scrollbar {
    display: none;
  }

  .fit__intro {
    align-items: flex-start;
    justify-content: center;
    padding: clamp(28px, 7vh, 56px) 0 calc(32px + env(safe-area-inset-bottom));
    text-align: left;
  }

  .fit__intro h1 {
    max-width: 9.5ch;
    margin: 0;
    font-size: clamp(3rem, 14vw, 4.35rem);
    line-height: 0.92;
    text-wrap: balance;
  }

  .fit__intro-copy {
    max-width: 38ch;
    margin: 24px 0 0;
    font-size: 1rem;
    line-height: 1.48;
  }

  .fit__intro-actions {
    width: 100%;
    justify-content: flex-start;
    margin-top: 30px;
  }

  body[data-fit-state="question"] .fit__form {
    padding: 0 0 calc(84px + env(safe-area-inset-bottom));
    overscroll-behavior-x: none;
    scroll-padding-bottom: calc(92px + env(safe-area-inset-bottom));
    touch-action: pan-y;
  }

  .fit__step {
    min-height: 100%;
    flex: none;
    padding: clamp(22px, 5vh, 38px) 0 32px;
  }

  .fit__legend {
    text-align: left;
  }

  .fit__question {
    max-width: 19ch;
    margin: 0;
    font-size: clamp(2.45rem, 11vw, 3.45rem);
    letter-spacing: -0.055em;
    line-height: 0.95;
    text-align: left;
    text-wrap: pretty;
  }

  .fit__description {
    display: block;
    max-width: 42ch;
    margin: 12px 0 0;
    font-size: 1rem;
    line-height: 1.4;
    text-align: left;
  }

  .fit__controls,
  .fit__controls[data-control-type="contact"] {
    margin-top: 24px;
  }

  .fit__controls[data-control-type="single"],
  .fit__controls[data-control-type="multi"] {
    display: block;
    flex: none;
  }

  .fit__controls[data-control-type="single"] .fit__options {
    min-height: auto;
  }

  .fit__options,
  .fit__choice-list,
  .fit__controls:is(
    [data-option-count="6"],
    [data-option-count="7"],
    [data-option-count="8"],
    [data-option-count="9"],
    [data-option-count="10"],
    [data-option-count="11"]
  ) .fit__options,
  .fit__controls:is(
    [data-option-count="6"],
    [data-option-count="7"],
    [data-option-count="8"],
    [data-option-count="9"],
    [data-option-count="10"],
    [data-option-count="11"]
  ) .fit__choice-list {
    grid-template-columns: minmax(0, 1fr);
    grid-auto-rows: auto;
    row-gap: 2px;
  }

  .fit__options button,
  .fit__option {
    min-height: var(--fit-row-height);
    padding: 10px 0;
    font-size: clamp(1rem, 4.4vw, 1.125rem);
    line-height: 1.28;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
  }

  .fit__options button {
    grid-template-columns: minmax(0, 1fr) 20px;
    gap: 14px;
  }

  .fit__options button::after,
  .fit__options button:hover::after {
    opacity: 0.34;
    transform: none;
  }

  .fit__option {
    grid-template-columns: 16px minmax(0, 1fr);
    gap: 12px;
  }

  .fit__option-marker {
    width: 14px;
    height: 14px;
  }

  .fit__option:hover input:not(:checked) + .fit__option-marker {
    transform: none;
  }

  .fit__options button:hover .fit__option-copy::after,
  .fit__option:hover .fit__option-copy::after {
    transform: scaleX(0);
  }

  .fit__options button:focus-visible .fit__option-copy::after,
  .fit__options button.fit__option--selected .fit__option-copy::after,
  .fit__option:has(input:focus-visible) .fit__option-copy::after,
  .fit__option:has(input:checked) .fit__option-copy::after {
    transform: scaleX(1);
  }

  .fit__options button:active .fit__option-copy,
  .fit__option:active .fit__option-copy {
    transform: translateX(4px);
  }

  .fit__note,
  .fit__controls[data-control-type="multi"] .fit__note {
    display: block;
    margin-top: 14px;
    font-size: 0.75rem;
    line-height: 1.45;
  }

  .fit__field {
    gap: 7px;
  }

  .fit__field > span {
    font-size: 0.625rem;
  }

  .fit__field input {
    height: 48px;
    font-size: 1rem;
  }

  .fit__field textarea {
    height: clamp(168px, 28vh, 220px);
    min-height: 168px;
    font-size: 1rem;
    resize: vertical;
  }

  .fit__conditional {
    max-width: none;
    margin-top: 18px;
  }

  .fit__fields {
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
  }

  .fit__actions {
    width: 100%;
    margin-top: 24px;
  }

  .fit-button {
    width: 100%;
    min-width: 0;
    min-height: 50px;
  }

  .fit__error {
    position: fixed;
    right: 16px;
    bottom: calc(72px + env(safe-area-inset-bottom));
    left: 16px;
    max-width: none;
  }

  .fit-rail {
    right: 0;
    bottom: 0;
    left: 0;
    min-height: calc(64px + env(safe-area-inset-bottom));
    justify-content: center;
    gap: 18px;
    padding: 8px 16px env(safe-area-inset-bottom);
    border-top: 1px solid var(--line);
    background: var(--paper);
    transform: translateY(8px);
  }

  body[data-fit-state="question"] .fit-rail {
    transform: translateY(0);
  }

  .fit-rail__ticks {
    display: none;
  }

  .fit-rail__arrow {
    min-width: 44px;
    min-height: 44px;
    font-size: 1rem;
  }

  .fit-rail__count {
    min-width: 64px;
    color: var(--ink);
    font-size: 0.6875rem;
  }

  .fit__result {
    max-width: none;
    justify-content: flex-start;
    padding: clamp(56px, 12vh, 96px) 0 calc(36px + env(safe-area-inset-bottom));
  }

  .fit__result-title {
    max-width: 13ch;
    font-size: clamp(2.8rem, 12.5vw, 4rem);
  }

  .fit__result-copy {
    margin-top: 22px;
    font-size: 1rem;
  }
}

@media (max-width: 760px) and (max-height: 620px),
  (max-width: 960px) and (max-height: 460px) {
  :root {
    --fit-header-height: calc(46px + env(safe-area-inset-top));
    --fit-surface-y: 12px;
  }

  .fit__intro {
    justify-content: flex-start;
    padding-top: 22px;
  }

  .fit__intro h1 {
    font-size: clamp(2.7rem, 12vw, 3.5rem);
  }

  .fit__step {
    padding-top: 16px;
  }

  .fit__question {
    font-size: clamp(2.1rem, 9.5vw, 2.85rem);
  }

  .fit__description {
    font-size: 0.9375rem;
  }
}

@media (min-width: 1000px) and (min-height: 681px) {
  .fit__controls[data-control-type="multi"][data-option-count="11"] {
    margin-top: clamp(10px, 1.5vh, 16px);
  }

  .fit__controls[data-option-count="11"] .fit__option {
    padding-top: 2px;
    padding-bottom: 2px;
    line-height: 1;
  }

  .fit__controls[data-option-count="11"] .fit__note {
    max-width: none;
  }

  .fit__step:has(.fit__controls[data-option-count="11"]) .fit__actions {
    margin-top: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .fit-return__button::after,
  .fit-return__brand::after,
  .fit-return__brand img,
  .fit__options button,
  .fit__option,
  .fit__option-copy,
  .fit__option-copy::after,
  .fit__option-marker,
  .fit__question,
  .fit__description,
  .fit__intro,
  .fit-button {
    transition: none;
  }

  .fit__intro,
  .fit__form,
  .fit__result,
  .fit__form--entering .fit__question,
  .fit__form--entering .fit__description,
  .fit__form--entering .fit__options button,
  .fit__form--entering .fit__option,
  .fit__form--entering .fit__controls > .fit__field,
  .fit__form--entering .fit__fields {
    animation: none;
  }
}