/* Standalone VA — focused calibration and setup polish */
#calibration-screen {
  --cal-ink: #172033;
  --cal-muted: #66758b;
  --cal-line: #e3e8f0;
  --cal-blue: #1677f8;
  --cal-panel: #ffffff;
  width: 100%;
  max-width: 600px;
  min-height: 100dvh;
  margin: 0 auto;
  padding: max(20px, env(safe-area-inset-top)) 18px calc(24px + env(safe-area-inset-bottom)) !important;
  gap: 16px;
  color: var(--cal-ink);
  text-align: left !important;
  background: #f6f8fc;
}
#calibration-screen .setup-header {
  margin: 4px 0 2px !important;
  text-align: left;
}
#calibration-screen .v11-title-page {
  font-size: clamp(25px, 6vw, 30px);
  line-height: 1.15;
  letter-spacing: -0.035em;
}
#calibration-screen .v11-text-helper {
  margin-top: 7px;
  color: var(--cal-muted);
  font-size: 14px;
  line-height: 1.45;
}
#calibration-screen .calibration-area {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: clamp(18px, 5vw, 26px);
  background: var(--cal-panel);
  border: 1px solid var(--cal-line);
  border-radius: 22px;
  box-shadow: 0 8px 28px rgba(20, 36, 64, .055);
}
#calibration-screen .va-calibration-heading {
  display: flex;
  flex-direction: column;
  gap: 9px;
}
#calibration-screen .va-calibration-eyebrow {
  color: #78869b;
  font-size: 11px;
  font-weight: 750;
  letter-spacing: .12em;
}
#calibration-screen .va-calibration-heading h3 {
  font-size: clamp(21px, 5vw, 25px);
  line-height: 1.2;
  letter-spacing: -.025em;
}
#calibration-screen .calibration-instructions {
  color: #718096;
  font-size: 14px;
  line-height: 1.5;
}
#calibration-screen .calibration-reference-wrapper {
  padding: 18px 16px 22px;
  border: 1px solid #e7eaf1;
  border-radius: 18px;
  background: #f7f8fb;
}
#calibration-screen .calibration-measurement {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  color: #8490a2;
  font-size: 12px;
}
#calibration-screen .calibration-measurement strong {
  color: var(--cal-ink);
  font-size: 18px;
  letter-spacing: -.02em;
}
#calibration-screen .calibration-line {
  max-width: 100%;
  margin: 0 auto;
  border-radius: 99px;
  border-top: 5px solid #172033;
  position: relative;
}
#calibration-screen .calibration-line-endpoint {
  width: 18px;
  height: 18px;
  top: -11px;
  border: 3px solid #172033;
  background: #fff;
}
#calibration-screen .va-calibration-value {
  display: flex;
  flex-direction: column;
  gap: 4px;
  text-align: center;
}
#calibration-screen #calibration-width-value {
  font-size: 29px;
  font-weight: 750;
  letter-spacing: -.04em;
  color: var(--cal-ink);
  font-variant-numeric: tabular-nums;
}
#calibration-screen .va-calibration-value small {
  color: var(--cal-muted);
  font-size: 12px;
}
#calibration-screen .va-calibration-slider-label {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: #536176;
  font-size: 13px;
  font-weight: 600;
}
#calibration-screen .va-calibration-slider {
  width: 100%;
  margin: -7px 0 0;
  accent-color: var(--cal-blue);
  cursor: pointer;
}
#calibration-screen .va-calibration-stepper {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}
#calibration-screen .va-calibration-step {
  min-width: 0;
  min-height: 46px;
  padding: 0 8px;
  border: 1px solid #e1e6ef;
  border-radius: 12px;
  background: #f7f8fb;
  color: #253248;
  font: inherit;
  font-size: 17px;
  font-weight: 700;
  cursor: pointer;
  transition: background .15s ease, border-color .15s ease, transform .15s ease;
}
#calibration-screen .va-calibration-step:active {
  transform: scale(.97);
  background: #eaf2ff;
  border-color: #b8d5ff;
}
#calibration-screen .va-calibration-tip {
  padding: 13px 15px;
  border-radius: 14px;
  background: #edf5ff;
  color: #285b9f;
  font-size: 13px;
  line-height: 1.5;
}
#calibration-screen .calibration-actions {
  position: sticky;
  bottom: 0;
  z-index: 5;
  padding: 8px 0 max(4px, env(safe-area-inset-bottom));
  background: linear-gradient(to bottom, rgba(246,248,252,0), #f6f8fc 18%);
  gap: 9px !important;
}
#calibration-screen .calibration-actions .v11-btn {
  width: 100%;
  min-height: 50px;
  border-radius: 14px;
  font-size: 15px;
}
#calibration-screen .calibration-actions #cal-save-btn {
  box-shadow: 0 5px 14px rgba(22,119,248,.18);
}
#calibration-screen .calibration-landscape-blocker { border-radius: 12px; }

/* Keep the primary action visible and reachable on short mobile screens. */
#setup-screen {
  min-height: 100dvh;
  padding-bottom: calc(24px + env(safe-area-inset-bottom)) !important;
}
#setup-screen #start-test-btn {
  display: flex !important;
  visibility: visible !important;
  position: sticky;
  bottom: 0;
  z-index: 6;
  flex: 0 0 auto;
  min-height: 54px;
  margin-top: 24px;
  margin-bottom: max(4px, env(safe-area-inset-bottom));
  border-radius: 14px;
  box-shadow: 0 6px 16px rgba(22,119,248,.18);
}
@media (max-width: 380px) {
  #calibration-screen { padding-left: 14px !important; padding-right: 14px !important; }
  #calibration-screen .calibration-area { padding: 16px; gap: 17px; }
  #calibration-screen .va-calibration-step { font-size: 15px; }
}


/* Compact USEC brand mark for the calibration screen */
#calibration-screen .calibration-brand {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 8px;
}
#calibration-screen .calibration-brand img {
  display: block;
  width: auto;
  height: 30px;
  max-width: 125px;
  object-fit: contain;
}
#calibration-screen .setup-header {
  text-align: center;
  margin-top: 0 !important;
  margin-bottom: 0 !important;
}
#calibration-screen .setup-header .v11-text-helper {
  margin-top: 5px;
}
@media (max-height: 760px) {
  #calibration-screen .calibration-brand { margin-bottom: 5px; }
  #calibration-screen .calibration-brand img { height: 26px; }
}


/* Fix clipped calibration controls: let the calibration screen scroll naturally */
#calibration-screen {
  height: auto !important;
  min-height: 100dvh !important;
  max-height: none !important;
  overflow-x: hidden !important;
  overflow-y: auto !important;
  justify-content: flex-start !important;
  align-items: stretch;
  padding-bottom: calc(28px + env(safe-area-inset-bottom)) !important;
}
#calibration-screen .calibration-area {
  flex: 0 0 auto;
  overflow: visible !important;
  min-height: 0;
}
#calibration-screen .va-calibration-slider-label,
#calibration-screen .va-calibration-slider,
#calibration-screen .va-calibration-stepper,
#calibration-screen .va-calibration-tip {
  position: relative;
  display: flex;
  visibility: visible !important;
  opacity: 1 !important;
}
#calibration-screen .va-calibration-slider {
  display: block !important;
  height: 42px;
  min-height: 42px;
  margin: 0 !important;
}
#calibration-screen .va-calibration-stepper {
  display: grid !important;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin-top: 0 !important;
}
#calibration-screen .va-calibration-step {
  display: inline-flex !important;
  visibility: visible !important;
  opacity: 1 !important;
  align-items: center;
  justify-content: center;
  min-height: 46px;
}
#calibration-screen .calibration-actions {
  position: static !important;
  flex: 0 0 auto;
  margin-top: 0;
  padding: 0 0 calc(8px + env(safe-area-inset-bottom)) !important;
  background: transparent !important;
  z-index: auto;
}
#calibration-screen .calibration-actions .v11-btn {
  flex: 0 0 auto;
}
@media (max-width: 380px) {
  #calibration-screen .calibration-area { gap: 16px; }
  #calibration-screen .va-calibration-stepper { gap: 6px; }
  #calibration-screen .va-calibration-step { min-height: 44px; padding: 0 4px; }
}


/* Premium clinical calibration reference: precise endpoints, no ambiguous circles */
#calibration-screen .calibration-reference-wrapper {
  padding: 18px 16px 20px;
  border: 1px solid #dfe9ed;
  border-radius: 20px;
  background: linear-gradient(145deg, #ffffff 0%, #f5fafb 100%);
  box-shadow: 0 8px 22px rgba(22,55,72,.055), inset 0 1px 0 rgba(255,255,255,.95);
}
#calibration-screen .calibration-measurement {
  margin-bottom: 18px;
  color: #718494;
}
#calibration-screen .calibration-measurement strong {
  color: #12344a;
  font-size: 17px;
  font-weight: 750;
}
#calibration-screen .calibration-measurement span {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}
#calibration-screen .calibration-line {
  position: relative;
  width: 160px;
  max-width: 100%;
  height: 18px;
  margin: 0 auto;
  border-top: 3px solid #123b4d;
  border-radius: 0;
}
#calibration-screen .calibration-line-endpoint {
  position: absolute;
  top: -9px;
  width: 2px;
  height: 14px;
  border: 0;
  border-radius: 2px;
  background: #087f8c;
  box-shadow: 0 0 0 3px rgba(8,127,140,.08);
}
#calibration-screen .calibration-line-endpoint.left { left: 0; }
#calibration-screen .calibration-line-endpoint.right { right: 0; }
#calibration-screen .calibration-line::before,
#calibration-screen .calibration-line::after {
  position: absolute;
  top: 9px;
  color: #6c7f8e;
  font-size: 9px;
  font-weight: 700;
  line-height: 1;
}
#calibration-screen .calibration-line::before {
  content: "START";
  left: 0;
  transform: translateX(-50%);
}
#calibration-screen .calibration-line::after {
  content: "END";
  right: 0;
  transform: translateX(50%);
}
#calibration-screen .va-calibration-value { margin-top: 3px; }
#calibration-screen #calibration-width-value { color: #12344a; }
#calibration-screen .va-calibration-slider { accent-color: #087f8c; }
#calibration-screen .va-calibration-step {
  border-color: #d8e5ea;
  border-radius: 14px;
  background: #fff;
  color: #19384a;
  box-shadow: 0 3px 10px rgba(22,55,72,.035);
}
#calibration-screen .va-calibration-step:active {
  background: #e9f7f6;
  border-color: #8bcbd0;
}
@media (max-width: 380px) {
  #calibration-screen .calibration-reference-wrapper { padding-left: 12px; padding-right: 12px; }
  #calibration-screen .calibration-line { width: 150px; }
}


/* Final mobile polish: compact hierarchy, exact endpoints, reachable actions */
#calibration-screen .calibration-area {
  gap: 16px;
  padding: clamp(16px, 4vw, 22px);
}
#calibration-screen .va-calibration-heading {
  gap: 7px;
  text-align: center;
}
#calibration-screen .va-calibration-heading h3 {
  font-size: clamp(21px, 5.2vw, 25px);
  line-height: 1.18;
}
#calibration-screen .calibration-instructions {
  font-size: 14px;
  line-height: 1.4;
  margin-top: 0;
}
#calibration-screen .calibration-reference-wrapper {
  padding: 16px 14px 24px;
  border-radius: 18px;
  box-shadow: 0 5px 16px rgba(22,55,72,.045), inset 0 1px 0 rgba(255,255,255,.95);
}
#calibration-screen .calibration-measurement {
  margin-bottom: 17px;
}
#calibration-screen .calibration-line {
  box-sizing: border-box;
  width: var(--calibration-line-width, 160px);
  max-width: calc(100% - 12px);
  height: 25px;
  margin: 0 auto;
  border-top: 3px solid #123b4d;
  border-radius: 0;
}
/* The measured length is the distance between the two marker centerlines. */
#calibration-screen .calibration-line-endpoint {
  top: -9px;
  width: 2px;
  height: 14px;
  border: 0;
  border-radius: 0;
  background: #087f8c;
  box-shadow: none;
}
#calibration-screen .calibration-line::before,
#calibration-screen .calibration-line::after {
  top: 11px;
  font-size: 9px;
  letter-spacing: .05em;
  color: #718494;
}
#calibration-screen .calibration-line::before { left: 0; }
#calibration-screen .calibration-line::after { right: 0; }
#calibration-screen .va-calibration-value { gap: 2px; }
#calibration-screen #calibration-width-value {
  font-size: clamp(27px, 7vw, 34px);
}
#calibration-screen .va-calibration-value small { font-size: 12px; }
#calibration-screen .va-calibration-slider-label {
  margin-top: 0;
  font-size: 12px;
}
#calibration-screen .va-calibration-slider {
  height: 32px;
  min-height: 32px;
}
#calibration-screen .va-calibration-stepper {
  max-width: 340px;
  width: 100%;
  align-self: center;
  gap: 8px;
}
#calibration-screen .va-calibration-step {
  min-height: 42px;
  border-radius: 12px;
  font-size: 16px;
  box-shadow: 0 2px 7px rgba(22,55,72,.025);
}
#calibration-screen .calibration-actions {
  gap: 8px !important;
  margin-top: 0;
  padding-bottom: calc(18px + env(safe-area-inset-bottom)) !important;
}
#calibration-screen .calibration-actions .v11-btn {
  min-height: 48px;
  border-radius: 13px;
}
#calibration-screen .calibration-actions #cal-reset-btn,
#calibration-screen .calibration-actions #cal-back-btn {
  box-shadow: none;
}
#calibration-screen .calibration-landscape-blocker {
  margin-bottom: 12px;
}
@media (max-width: 380px) {
  #calibration-screen .calibration-area { gap: 14px; }
  #calibration-screen .calibration-reference-wrapper { padding-left: 10px; padding-right: 10px; }
  #calibration-screen .va-calibration-stepper { gap: 6px; }
  #calibration-screen .va-calibration-step { min-height: 40px; font-size: 15px; }
}


/* Correct the reference component itself; override legacy filled-bar styling. */
#calibration-screen .va-calibration-reference .calibration-line {
  position: relative !important;
  display: block;
  box-sizing: border-box;
  height: 28px !important;
  min-height: 28px;
  margin: 0 auto;
  padding: 0;
  background: transparent !important;
  background-color: transparent !important;
  border: 0 !important;
  border-radius: 0 !important;
  transition: width 90ms ease-out;
}
#calibration-screen .va-calibration-reference .calibration-line::before,
#calibration-screen .va-calibration-reference .calibration-line::after {
  content: none !important;
  display: none !important;
}
#calibration-screen .va-calibration-reference .calibration-line-endpoint {
  position: absolute !important;
  top: 0 !important;
  width: 2px !important;
  height: 14px !important;
  margin: 0;
  padding: 0;
  border: 0 !important;
  border-radius: 0 !important;
  background: #07838b !important;
  box-shadow: none !important;
}
#calibration-screen .va-calibration-reference .calibration-line-endpoint.left {
  left: 0 !important;
  right: auto !important;
}
#calibration-screen .va-calibration-reference .calibration-line-endpoint.right {
  right: 0 !important;
  left: auto !important;
}
#calibration-screen .va-calibration-reference .calibration-line::marker { content: none; }
#calibration-screen .va-calibration-reference .calibration-line {
  border-top: 2px solid #15394a !important;
  border-bottom: 0 !important;
}
#calibration-screen .va-calibration-reference .calibration-line-endpoint {
  top: -6px !important;
  height: 14px !important;
}


/* Calibration screen: centered, brand-free and plain-language measurement UI */
#calibration-screen {
  box-sizing: border-box;
  width: 100%;
  margin-inline: auto !important;
  padding: clamp(14px, 3vh, 24px) 16px !important;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}
#calibration-screen .calibration-brand { display: none !important; }
#calibration-screen .setup-header {
  width: 100%;
  margin: 0 auto 16px !important;
  padding: 0 !important;
  text-align: center;
}
#calibration-screen .setup-header h1 { margin-top: 0 !important; }
#calibration-screen .setup-header .v11-text-helper { margin-bottom: 0 !important; }
#calibration-screen .calibration-area {
  width: 100%;
  box-sizing: border-box;
  margin: 0 auto 16px !important;
  text-align: center;
}
#calibration-screen .va-calibration-heading,
#calibration-screen .va-calibration-value,
#calibration-screen .va-calibration-slider-label,
#calibration-screen .va-calibration-stepper,
#calibration-screen .calibration-actions {
  width: 100%;
  margin-inline: auto;
  text-align: center;
}
#calibration-screen .calibration-measurement {
  display: flex;
  align-items: center;
  justify-content: center;
}
#calibration-screen .calibration-measurement span { display: none !important; }
#calibration-screen .calibration-measurement strong { margin-inline: auto; }
#calibration-screen .va-calibration-value { align-items: center; }
#calibration-screen #calibration-width-value { font-variant-numeric: tabular-nums; }
#calibration-screen .va-calibration-slider-label {
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px 18px;
}
#calibration-screen .calibration-actions { max-width: 100%; }
@media (max-height: 800px) {
  #calibration-screen { padding-top: 10px !important; padding-bottom: 10px !important; }
  #calibration-screen .setup-header { margin-bottom: 12px !important; }
  #calibration-screen .calibration-area { margin-bottom: 12px !important; }
}


/* Keep the 40 mm reference line as the only numeric visual reference */
#calibration-screen .va-calibration-value { display: none !important; }
#calibration-screen .va-calibration-slider-label {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 8px auto 10px !important;
  color: #52677c;
  font-size: 15px;
  font-weight: 650;
  text-align: center;
}
#calibration-screen .va-calibration-slider-label span + span { display: none !important; }


/* Fit the entire calibration flow within the visible mobile viewport */
#calibration-screen {
  height: calc(100dvh - 180px) !important;
  min-height: 0 !important;
  max-height: calc(100dvh - 180px) !important;
  overflow: hidden !important;
  padding: 8px 16px !important;
  gap: 0 !important;
  justify-content: center !important;
}
#calibration-screen .setup-header {
  flex: 0 0 auto !important;
  margin: 0 auto 10px !important;
}
#calibration-screen .setup-header h1 {
  font-size: clamp(23px, 6vw, 30px) !important;
  line-height: 1.1 !important;
  margin: 0 0 5px !important;
}
#calibration-screen .setup-header .v11-text-helper {
  font-size: 14px !important;
  line-height: 1.2 !important;
}
#calibration-screen .calibration-area {
  flex: 0 1 auto !important;
  min-height: 0 !important;
  padding: 16px !important;
  gap: 12px !important;
  margin: 0 auto 10px !important;
  overflow: hidden !important;
}
#calibration-screen .va-calibration-heading h3 {
  font-size: clamp(18px, 4.8vw, 23px) !important;
  line-height: 1.15 !important;
  margin: 0 0 5px !important;
}
#calibration-screen .calibration-instructions {
  font-size: 13px !important;
  line-height: 1.25 !important;
  margin: 0 !important;
}
#calibration-screen .calibration-reference-wrapper {
  flex: 0 0 auto !important;
  min-height: 100px !important;
  height: 100px !important;
  padding: 10px 12px !important;
  gap: 4px !important;
}
#calibration-screen .calibration-measurement strong {
  font-size: 20px !important;
  line-height: 1.1 !important;
}
#calibration-screen .calibration-measurement { margin: 0 !important; }
#calibration-screen .va-calibration-slider-label {
  flex: 0 0 auto !important;
  margin: 0 auto 2px !important;
  font-size: 13px !important;
  line-height: 1.2 !important;
}
#calibration-screen .va-calibration-slider {
  flex: 0 0 auto !important;
  height: 28px !important;
  min-height: 28px !important;
  margin: 0 !important;
}
#calibration-screen .va-calibration-stepper {
  flex: 0 0 auto !important;
  gap: 6px !important;
  margin: 0 auto !important;
}
#calibration-screen .va-calibration-step {
  min-height: 38px !important;
  height: 38px !important;
  padding: 4px !important;
  font-size: 15px !important;
}
#calibration-screen .calibration-actions {
  flex: 0 0 auto !important;
  gap: 6px !important;
  margin: 0 auto !important;
  padding: 0 !important;
}
#calibration-screen .calibration-actions .v11-btn {
  flex: 0 0 auto !important;
  min-height: 42px !important;
  height: 42px !important;
  padding: 6px 12px !important;
  font-size: 14px !important;
  border-radius: 12px !important;
}
#calibration-screen .calibration-landscape-blocker { display: none !important; }

@media (max-height: 740px) {
  #calibration-screen { height: calc(100dvh - 180px) !important; padding: 4px 12px !important; }
  #calibration-screen .setup-header { margin-bottom: 6px !important; }
  #calibration-screen .calibration-area { padding: 12px !important; gap: 8px !important; margin-bottom: 6px !important; }
  #calibration-screen .calibration-reference-wrapper { min-height: 82px !important; height: 82px !important; }
  #calibration-screen .calibration-actions .v11-btn { min-height: 38px !important; height: 38px !important; }
}


/* Final viewport-centering override: supersedes legacy scroll/flex rules */
#calibration-screen {
  display: flex !important;
  flex-direction: column !important;
  align-items: center !important;
  justify-content: center !important;
  box-sizing: border-box !important;
  width: 100% !important;
  height: calc(100dvh - 180px) !important;
  min-height: 0 !important;
  max-height: calc(100dvh - 180px) !important;
  margin: 0 auto !important;
  overflow: hidden !important;
  padding: 8px 16px !important;
  gap: 0 !important;
}
#calibration-screen > .setup-header,
#calibration-screen > .calibration-area,
#calibration-screen > .calibration-actions {
  flex-shrink: 0 !important;
  margin-left: auto !important;
  margin-right: auto !important;
}
#calibration-screen > .setup-header { margin-top: auto !important; }
#calibration-screen > .calibration-actions { margin-bottom: auto !important; }


/* Correct viewport sizing: the previous 180px subtraction made the flex
   content exceed its box on iPhone Safari, disabling auto-margin centering. */
#calibration-screen {
  height: calc(100dvh - 80px) !important;
  min-height: calc(100dvh - 80px) !important;
  max-height: calc(100dvh - 80px) !important;
  justify-content: center !important;
  padding-top: 8px !important;
  padding-bottom: max(8px, env(safe-area-inset-bottom)) !important;
}
#calibration-screen > .setup-header {
  margin-top: 0 !important;
  margin-bottom: 10px !important;
}
#calibration-screen > .calibration-area {
  margin-top: 0 !important;
  margin-bottom: 10px !important;
  flex-shrink: 1 !important;
  min-height: 0 !important;
}
#calibration-screen > .calibration-actions {
  margin-top: 0 !important;
  margin-bottom: 0 !important;
}
#calibration-screen .calibration-area,
#calibration-screen .calibration-actions {
  width: 100% !important;
  max-width: 600px !important;
}