:root {
  color-scheme: light dark;
  --ink: #162126;
  --ink-soft: #415057;
  --on-ink: #ffffff;
  --paper: #f4f3ed;
  --paper-deep: #e7e5dc;
  --surface: #fffefa;
  --surface-start: #fffefa;
  --surface-end: #f4f3ed;
  --input-surface: #ffffff;
  --grid-line: rgb(22 33 38 / 3%);
  --line: #b8bebc;
  --line-strong: #667277;
  --steel: #758287;
  --amber: #d88918;
  --amber-bright: #a85f00;
  --amber-pale: #fff0cb;
  --error: #a52b24;
  --error-ink: #722821;
  --error-surface: #fff4ee;
  --success: #1d684a;
  --link: #0d5a70;
  --link-hover: #873f00;
  --info: #0d5a70;
  --instrument-accent: rgb(216 137 24 / 5%);
  --cup-shadow: rgb(22 33 38 / 12%);
  --cup-stroke: #4e5a5f;
  --cup-rim: #36454b;
  --cup-glint: #ffffff;
  --callout: #a7640b;
  --size-divider: #536066;
  --noscript-ink: #5f3800;
  --dialog-shadow: 0 30px 90px rgb(0 0 0 / 35%);
  --dialog-backdrop: rgb(9 17 20 / 72%);
  --steel-stop-1: #5e6a6e;
  --steel-stop-2: #eef1ef;
  --steel-stop-3: #899396;
  --steel-stop-4: #f8f8f4;
  --steel-stop-5: #657176;
  --shadow: 0 18px 44px rgb(14 27 32 / 12%);
  --radius-sm: 4px;
  --radius: 8px;
  --content: 1180px;
  --reading: 760px;
  --font-ui: "Avenir Next", Avenir, "Segoe UI", sans-serif;
  --font-measure: "DIN Alternate", "Avenir Next Condensed", "Arial Narrow", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  margin: 0;
  min-width: 280px;
  overflow-x: clip;
  color: var(--ink);
  background:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px),
    var(--paper);
  background-size: 32px 32px;
  font-family: var(--font-ui);
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}

button,
input,
select {
  font: inherit;
}

button,
select {
  cursor: pointer;
}

a {
  color: var(--link);
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--link-hover);
}

:focus-visible {
  outline: 3px solid var(--amber-bright);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.5rem;
  left: 0.5rem;
  padding: 0.75rem 1rem;
  color: var(--on-ink);
  background: var(--ink);
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.site-header {
  width: min(calc(100% - 2rem), var(--content));
  min-height: 64px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  border-bottom: 1px solid var(--line);
}

.brand {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--ink);
  font-weight: 800;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand-mark {
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.site-header nav,
.site-footer nav {
  display: flex;
  align-items: center;
  gap: 1.35rem;
}

.site-header nav a,
.site-footer nav a,
.back-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: var(--ink-soft);
  font-size: 0.88rem;
  font-weight: 700;
  text-decoration: none;
}

.site-header nav a:hover,
.site-footer nav a:hover,
.back-link:hover {
  color: var(--link-hover);
}

main {
  display: block;
}

.hero {
  width: min(calc(100% - 2rem), var(--content));
  margin: 0 auto;
  padding: clamp(1.25rem, 3vw, 2.8rem) 0 clamp(3rem, 8vw, 6rem);
}

.hero-heading {
  display: grid;
  grid-template-columns: 1fr minmax(260px, 390px);
  align-items: end;
  gap: 2rem;
  margin-bottom: 1.45rem;
}

h1,
h2,
h3,
p {
  overflow-wrap: break-word;
}

h1,
h2,
h3 {
  margin-top: 0;
  line-height: 1.08;
  letter-spacing: -0.035em;
}

h1 {
  margin-bottom: 0.3rem;
  font-size: clamp(2.15rem, 4.6vw, 4.5rem);
  font-weight: 850;
}

h2 {
  margin-bottom: 0.65rem;
  font-size: clamp(1.7rem, 3vw, 2.65rem);
}

h3 {
  margin-bottom: 0.55rem;
  font-size: 1.1rem;
}

.hero-subtitle {
  margin: 0;
  color: var(--ink-soft);
  font-size: clamp(1rem, 1.5vw, 1.2rem);
}

.trust-note {
  margin: 0 0 0.25rem;
  padding-left: 1rem;
  color: var(--ink-soft);
  border-left: 3px solid var(--amber);
  font-size: 0.92rem;
}

.trust-note strong {
  display: block;
  color: var(--ink);
}

.instrument {
  position: relative;
  display: grid;
  grid-template-columns: minmax(310px, 0.92fr) minmax(310px, 1fr) minmax(250px, 0.88fr);
  grid-template-areas: "controls result figure";
  min-height: 515px;
  overflow: hidden;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.instrument::before {
  content: "";
  position: absolute;
  z-index: 0;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(110deg, transparent 0 68%, var(--instrument-accent) 68% 100%);
}

.instrument > * {
  position: relative;
  z-index: 1;
}

.controls-panel {
  grid-area: controls;
  padding: clamp(1.25rem, 2.5vw, 2rem);
  border-right: 1px solid var(--line);
}

.control-row {
  display: grid;
  grid-template-columns: 1fr 1.18fr;
  gap: 0.8rem;
}

.batch-field {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: auto minmax(180px, 1fr);
  align-items: center;
  gap: 0.35rem 0.75rem;
}

.batch-field > label {
  margin: 0;
}

.batch-field .field-note {
  grid-column: 2;
  margin-top: 0;
}

.batch-stepper {
  display: grid;
  grid-template-columns: 44px auto minmax(52px, 1fr) 44px;
  align-items: center;
  max-width: 240px;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
}

.batch-stepper button,
.batch-stepper input {
  min-width: 0;
  min-height: 44px;
  border: 0;
  border-radius: 0;
}

.batch-stepper button {
  padding: 0;
  color: var(--ink);
  background: var(--paper);
  font-size: 1.15rem;
  font-weight: 850;
}

.batch-stepper button:hover {
  background: var(--amber-pale);
}

.batch-stepper span {
  padding-left: 0.45rem;
  color: var(--ink-soft);
  font-weight: 800;
}

.batch-stepper input {
  padding: 0.35rem;
  text-align: center;
  background: transparent;
  font-family: var(--font-measure);
  font-size: 1.1rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.field {
  min-width: 0;
  margin-bottom: 1rem;
}

.field label,
.custom-grid label,
fieldset legend {
  display: block;
  margin: 0 0 0.38rem;
  color: var(--ink-soft);
  font-size: 0.73rem;
  font-weight: 800;
  letter-spacing: 0.085em;
  text-transform: uppercase;
}

input,
select {
  width: 100%;
  min-height: 48px;
  padding: 0.68rem 0.75rem;
  color: var(--ink);
  background: var(--input-surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
}

input:hover,
select:hover {
  border-color: var(--ink);
}

input[aria-invalid="true"] {
  border-color: var(--error);
  box-shadow: 0 0 0 1px var(--error);
}

#amount {
  font-family: var(--font-measure);
  font-size: 1.45rem;
  font-variant-numeric: tabular-nums;
  font-weight: 800;
}

.field-note,
.field-error,
.advanced-note p {
  margin: 0.38rem 0 0;
  font-size: 0.74rem;
  line-height: 1.4;
}

.field-note,
.advanced-note p {
  color: var(--ink-soft);
}

.field-error {
  min-height: 1.05em;
  color: var(--error);
  font-weight: 700;
}

.advanced-note {
  margin-top: 0.35rem;
  color: var(--ink-soft);
  font-size: 0.72rem;
}

.advanced-note summary {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: var(--info);
  font-weight: 700;
}

.quick-amounts,
.side-control,
.custom-fields {
  min-width: 0;
  margin: 0 0 1rem;
  padding: 0;
  border: 0;
}

.segmented-row {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

.segmented-row button {
  min-width: 0;
  min-height: 44px;
  padding: 0.45rem 0.25rem;
  color: var(--ink);
  background: var(--paper);
  border: 0;
  border-right: 1px solid var(--line);
  font-family: var(--font-measure);
  font-weight: 800;
}

.segmented-row button:last-child {
  border-right: 0;
}

.segmented-row button:hover,
.segmented-row button:focus-visible {
  background: var(--amber-pale);
}

.segmented-row button[aria-pressed="true"] {
  color: var(--ink);
  background: var(--amber-pale);
  box-shadow: inset 0 -3px 0 var(--amber);
}

.side-buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
}

.side-buttons button {
  min-height: 60px;
  padding: 0.55rem 0.65rem;
  text-align: left;
  color: var(--ink-soft);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

.side-buttons button[aria-pressed="true"] {
  color: var(--ink);
  background: var(--amber-pale);
  border-color: var(--amber);
  box-shadow: inset 0 -3px 0 var(--amber);
}

.side-buttons span,
.side-buttons strong {
  display: block;
}

.side-buttons span {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
}

.side-buttons strong {
  margin-top: 0.1rem;
  font-family: var(--font-measure);
  font-size: 0.94rem;
  font-variant-numeric: tabular-nums;
}

.custom-fields {
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.custom-fields[hidden] {
  display: none;
}

.custom-intro {
  margin-bottom: 0.75rem;
}

.custom-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.7rem;
}

.custom-grid label:first-child {
  grid-column: 1 / -1;
}

.custom-grid input,
.custom-grid select {
  margin-top: 0.38rem;
}

.result-panel {
  grid-area: result;
  padding: clamp(1.3rem, 3vw, 2.2rem);
  background: linear-gradient(180deg, var(--surface-start), var(--surface-end));
  border-right: 1px solid var(--line);
}

.result-kicker,
.result-label,
.legal-label {
  color: var(--ink-soft);
  font-size: 0.71rem;
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.result-kicker {
  margin-bottom: 0.85rem;
}

#result-live {
  transition: opacity 150ms ease;
}

.instrument[data-state="invalid-input"] #result-live {
  opacity: 0.42;
}

.result-block {
  padding: 0.75rem 0;
  border-top: 1px solid var(--line);
}

.result-block p {
  margin: 0.28rem 0 0;
}

.exact-result p {
  font-family: var(--font-measure);
  font-size: clamp(1.35rem, 2.1vw, 1.85rem);
  font-variant-numeric: tabular-nums;
  line-height: 1.25;
}

.result-context {
  color: var(--ink-soft);
  font-family: var(--font-ui) !important;
  font-size: 0.78rem !important;
  font-weight: 700;
}

.all-units {
  margin-top: 0.15rem;
}

.all-units summary {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: var(--ink-soft);
  font-size: 0.78rem;
  font-weight: 800;
}

.all-units dl {
  margin: 0 0 0.35rem;
}

.all-units dl div {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.75rem;
  padding: 0.3rem 0;
  border-top: 1px solid var(--line);
}

.all-units dt {
  color: var(--ink-soft);
  font-size: 0.76rem;
}

.all-units dd {
  margin: 0;
  font-family: var(--font-measure);
  font-size: 0.82rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.rounding-result p {
  font-family: var(--font-measure);
  font-size: 1.22rem;
  font-variant-numeric: tabular-nums;
  font-weight: 800;
}

.spoon-result p {
  font-family: var(--font-measure);
  font-size: 1.08rem;
  font-variant-numeric: tabular-nums;
  font-weight: 850;
}

.guidance-result {
  position: relative;
  padding-left: 0.9rem;
  border-left: 3px solid var(--success);
}

.guidance-result[data-guidance="unavailable-mark"] {
  color: var(--error-ink);
  background: var(--error-surface);
  border-left-color: var(--error);
}

.guidance-result[data-guidance="multi-pour"] {
  border-left-color: var(--info);
}

#guidance-result {
  line-height: 1.35;
}

#guidance-note {
  color: var(--ink-soft);
  font-size: 0.78rem;
  line-height: 1.45;
}

.guidance-steps {
  display: grid;
  gap: 0.45rem;
  margin: 0.55rem 0;
  padding: 0;
  list-style: none;
}

.guidance-steps[hidden] {
  display: none;
}

.guidance-steps li {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  gap: 0 0.55rem;
  padding: 0.5rem;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

.guidance-steps .pour-count {
  grid-row: 1 / 3;
  align-self: center;
  color: var(--ink);
  font-family: var(--font-measure);
  font-size: 1.05rem;
  font-weight: 850;
}

.guidance-steps strong {
  font-family: var(--font-measure);
  font-variant-numeric: tabular-nums;
}

.guidance-steps li > span:last-child {
  color: var(--ink-soft);
  font-size: 0.75rem;
  text-transform: capitalize;
}

.nearest-options {
  margin-top: 0.7rem;
  padding-top: 0.65rem;
  border-top: 1px solid var(--line);
}

.nearest-options[hidden] {
  display: none;
}

.nearest-label {
  display: block;
  margin-bottom: 0.45rem;
  color: var(--ink);
  font-size: 0.73rem;
  font-weight: 850;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.nearest-option-list {
  display: grid;
  gap: 0.45rem;
}

.nearest-option-list button {
  min-height: 44px;
  padding: 0.55rem 0.65rem;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 800;
  text-align: left;
}

.nearest-option-list button:hover {
  background: var(--amber-pale);
  border-color: var(--amber);
}

.result-actions {
  display: flex;
  gap: 0.65rem;
  margin-top: 1.1rem;
}

.result-actions button,
.primary-action {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.65rem 0.9rem;
  color: var(--ink);
  background: var(--input-surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  font-weight: 800;
  text-decoration: none;
}

.result-actions button:hover,
.primary-action:hover {
  color: var(--ink);
  background: var(--amber-pale);
  border-color: var(--amber);
}

.result-actions .primary-action,
.primary-action {
  color: var(--on-ink);
  background: var(--ink);
  border-color: var(--ink);
}

.result-actions .primary-action:hover,
.primary-action:hover {
  color: var(--ink);
  background: var(--amber-bright);
  border-color: var(--ink);
}

.action-status {
  min-height: 1.4em;
  margin: 0.55rem 0 0;
  color: var(--success);
  font-size: 0.78rem;
  font-weight: 700;
}

.jigger-figure {
  grid-area: figure;
  min-width: 0;
  margin: 0;
  padding: 1rem clamp(0.6rem, 2vw, 1.4rem);
  align-self: center;
  text-align: center;
  perspective: 800px;
}

.jigger-figure svg {
  display: block;
  width: 100%;
  max-width: 320px;
  height: auto;
  margin: 0 auto;
  overflow: visible;
  transform-origin: center;
  transition: transform 190ms ease, opacity 150ms ease;
}

.jigger-figure[data-side="small"] svg {
  transform: rotateY(-5deg) scale(0.96);
}

.jigger-figure[data-side="large"] svg {
  transform: rotateY(5deg);
}

.jigger-figure figcaption {
  max-width: 29rem;
  margin: -0.15rem auto 0;
  color: var(--ink-soft);
  font-size: 0.71rem;
  line-height: 1.45;
}

#steel stop:nth-child(1) {
  stop-color: var(--steel-stop-1);
}

#steel stop:nth-child(2) {
  stop-color: var(--steel-stop-2);
}

#steel stop:nth-child(3) {
  stop-color: var(--steel-stop-3);
}

#steel stop:nth-child(4) {
  stop-color: var(--steel-stop-4);
}

#steel stop:nth-child(5) {
  stop-color: var(--steel-stop-5);
}

.diagram-grid path {
  fill: none;
  stroke: var(--line-strong);
  stroke-dasharray: 2 6;
  stroke-width: 0.6;
  opacity: 0.25;
}

.cup-shadow {
  fill: var(--cup-shadow);
  transform: translate(5px, 5px);
}

#liquid-fill {
  fill: url("#amber");
  opacity: 0.74;
  transform-origin: bottom;
  transition: opacity 150ms ease, transform 170ms ease;
}

#liquid-fill.is-hidden {
  opacity: 0;
}

.cup-shell {
  fill: url("#steel");
  fill-opacity: 0.45;
  stroke: var(--cup-stroke);
  stroke-width: 2;
}

.cup-rim {
  fill: none;
  stroke: var(--cup-rim);
  stroke-linecap: round;
  stroke-width: 7;
}

.cup-glint {
  fill: none;
  stroke: var(--cup-glint);
  stroke-linecap: round;
  stroke-width: 3;
  opacity: 0.65;
}

.verified-highlight,
.verified-mark {
  fill: none;
  stroke: var(--amber-bright);
  stroke-linecap: round;
  stroke-width: 7;
  opacity: 0;
  transition: opacity 150ms ease;
}

.verified-highlight.is-active,
.verified-mark.is-active {
  opacity: 1;
}

.verified-mark-base {
  fill: none;
  stroke: var(--cup-rim);
  stroke-width: 2;
}

.verified-mark-label {
  fill: var(--ink);
  font-family: var(--font-measure);
  font-size: 12px;
  font-weight: 800;
}

.diagram-callout path {
  fill: none;
  stroke: var(--callout);
  stroke-width: 1.5;
}

.diagram-callout circle {
  fill: var(--amber-bright);
}

.diagram-callout text {
  fill: var(--ink);
  font-family: var(--font-measure);
  font-variant-numeric: tabular-nums;
}

#diagram-value {
  font-size: 19px;
  font-weight: 900;
}

#diagram-unit {
  font-size: 10px;
  font-weight: 700;
}

.diagram-disclaimer {
  fill: var(--ink-soft);
  font-family: var(--font-ui);
  font-size: 7px;
  font-weight: 800;
  letter-spacing: 1.1px;
}

.noscript-note {
  margin: 1rem 0 0;
  padding: 0.8rem 1rem;
  color: var(--noscript-ink);
  background: var(--amber-pale);
  border: 1px solid var(--amber);
}

.capability-disclosure {
  margin-top: 1rem;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
}

.capability-disclosure > summary {
  min-height: 52px;
  display: flex;
  align-items: center;
  padding: 0.7rem 1rem;
  color: var(--ink);
  font-size: 0.94rem;
  font-weight: 850;
  cursor: pointer;
}

.capability-disclosure[open] > summary {
  border-bottom: 1px solid var(--line);
}

.capability-body {
  padding: 1rem;
}

.capability-table {
  min-width: 760px;
}

.capability-group th {
  color: var(--ink);
  background: var(--paper-deep);
  font-family: var(--font-ui);
  font-size: 0.72rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.capability-empty {
  margin: 0;
  padding: 0.85rem 1rem;
  color: var(--ink-soft);
  background: var(--paper);
  border: 1px solid var(--line);
}

.print-spoon-note {
  margin: 0.8rem 0 0;
  color: var(--ink-soft);
  font-size: 0.82rem;
}

.content-section {
  width: min(calc(100% - 2rem), var(--content));
  margin: 0 auto;
  padding: clamp(3.5rem, 9vw, 7.5rem) 0;
  border-top: 1px solid var(--line);
}

.accuracy-heading strong {
  color: var(--ink);
}

.accuracy-instrument {
  display: grid;
  grid-template-columns: minmax(360px, 0.95fr) minmax(420px, 1.05fr);
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.accuracy-instrument[hidden] {
  display: none;
}

.accuracy-controls,
.accuracy-readout {
  min-width: 0;
  padding: clamp(1.25rem, 3vw, 2.25rem);
}

.accuracy-controls {
  border-right: 1px solid var(--line);
}

.accuracy-setup-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  grid-template-areas:
    "capacity resolution"
    "fill fill";
  gap: 0.9rem 1rem;
}

.accuracy-capacity-field {
  grid-area: capacity;
}

.accuracy-fill-point {
  grid-area: fill;
}

.accuracy-resolution-field {
  grid-area: resolution;
}

.accuracy-capacity-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(105px, 0.72fr);
  gap: 0.55rem;
}

#accuracy-nominal,
[data-accuracy-trial] {
  font-family: var(--font-measure);
  font-size: 1.15rem;
  font-variant-numeric: tabular-nums;
  font-weight: 850;
}

.accuracy-fill-point,
.accuracy-trials {
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

.accuracy-choice-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

.accuracy-choice-row input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}

.accuracy-choice-row label {
  min-height: 58px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0.5rem 0.7rem;
  color: var(--ink-soft);
  background: var(--paper);
  border-right: 1px solid var(--line);
  cursor: pointer;
}

.accuracy-choice-row label:last-child {
  border-right: 0;
}

.accuracy-choice-row strong,
.accuracy-choice-row span {
  display: block;
}

.accuracy-choice-row strong {
  color: var(--ink);
  font-size: 0.85rem;
}

.accuracy-choice-row span {
  margin-top: 0.08rem;
  font-size: 0.7rem;
}

.accuracy-choice-row input:checked + label {
  color: var(--ink);
  background: var(--amber-pale);
  box-shadow: inset 0 -3px 0 var(--amber);
}

.accuracy-choice-row input:focus-visible + label {
  position: relative;
  z-index: 1;
  outline: 3px solid var(--amber-bright);
  outline-offset: -3px;
}

.accuracy-trials {
  margin-top: 0.65rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}

.accuracy-trials > .field-note {
  margin: -0.05rem 0 0.8rem;
}

.accuracy-trial-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.65rem;
}

.accuracy-trial-grid > label > span:first-child {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--ink-soft);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.accuracy-input-suffix {
  position: relative;
  display: block;
}

.accuracy-input-suffix > span {
  position: absolute;
  top: 50%;
  right: 0.7rem;
  color: var(--ink-soft);
  font-family: var(--font-measure);
  font-size: 0.82rem;
  font-weight: 800;
  transform: translateY(-50%);
  pointer-events: none;
}

.accuracy-input-suffix input {
  padding-right: 2rem;
}

.accuracy-form-actions,
.accuracy-result-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.accuracy-form-actions {
  margin-top: 0.2rem;
}

.accuracy-form-actions button {
  min-height: 44px;
  padding: 0.55rem 0.75rem;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  font-weight: 800;
}

.accuracy-form-actions button:hover {
  background: var(--amber-pale);
  border-color: var(--amber);
}

.accuracy-readout {
  background: linear-gradient(180deg, var(--surface-start), var(--surface-end));
}

.accuracy-readout-heading {
  min-height: 112px;
}

.accuracy-readout-heading strong {
  display: block;
  margin-top: 0.5rem;
  font-size: clamp(1.35rem, 2.3vw, 2rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.accuracy-readout-heading strong[data-status="inside"] {
  color: var(--success);
}

.accuracy-readout-heading strong[data-status="below"],
.accuracy-readout-heading strong[data-status="above"],
.accuracy-readout-heading strong[data-status="invalid"] {
  color: var(--error-ink);
}

.accuracy-readout-heading p {
  max-width: 52ch;
  margin: 0.5rem 0 0;
  color: var(--ink-soft);
  font-size: 0.83rem;
}

.accuracy-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line);
}

.accuracy-metrics div {
  min-width: 0;
  padding: 0.9rem 0.75rem 0.9rem 0;
}

.accuracy-metrics div + div {
  padding-left: 0.75rem;
  border-left: 1px solid var(--line);
}

.accuracy-metrics dt {
  color: var(--ink-soft);
  font-size: 0.67rem;
  font-weight: 850;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.accuracy-metrics dd {
  margin: 0.22rem 0 0;
  font-family: var(--font-measure);
  font-size: clamp(1rem, 1.8vw, 1.25rem);
  font-variant-numeric: tabular-nums;
  font-weight: 900;
  line-height: 1.2;
}

.accuracy-gauge {
  margin: 1.4rem 0 0;
}

.accuracy-gauge[hidden] {
  display: none;
}

.accuracy-gauge-track {
  position: relative;
  height: 78px;
  overflow: hidden;
  background:
    linear-gradient(90deg, transparent 49.8%, var(--grid-line) 49.8% 50.2%, transparent 50.2%),
    var(--paper);
  border: 1px solid var(--line-strong);
}

.accuracy-gauge-band {
  position: absolute;
  top: 9px;
  bottom: 9px;
  left: var(--accuracy-band-start, 25%);
  width: var(--accuracy-band-width, 50%);
  background: var(--amber-pale);
  border-right: 1px solid var(--amber);
  border-left: 1px solid var(--amber);
}

.accuracy-nominal-line {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  background: var(--ink);
  opacity: 0.72;
}

.accuracy-trial-marker {
  position: absolute;
  left: var(--accuracy-position, 50%);
  width: 9px;
  height: 9px;
  background: var(--ink);
  border: 2px solid var(--surface);
  border-radius: 50%;
  transform: translateX(-50%);
  transition: left 180ms cubic-bezier(0.16, 1, 0.3, 1);
}

.accuracy-trial-marker-1 {
  top: 14px;
}

.accuracy-trial-marker-2 {
  top: 34px;
}

.accuracy-trial-marker-3 {
  top: 54px;
}

.accuracy-trial-marker > span {
  position: absolute;
  top: -3px;
  left: 13px;
  color: var(--ink-soft);
  font-family: var(--font-measure);
  font-size: 0.58rem;
  font-weight: 900;
}

.accuracy-average-marker {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--accuracy-position, 50%);
  width: 3px;
  background: var(--amber-bright);
  transform: translateX(-50%);
  transition: left 190ms cubic-bezier(0.16, 1, 0.3, 1);
}

.accuracy-average-marker > span {
  position: absolute;
  right: 5px;
  bottom: 3px;
  padding: 0.08rem 0.2rem;
  color: var(--ink);
  background: var(--amber-pale);
  font-family: var(--font-measure);
  font-size: 0.58rem;
  font-weight: 900;
}

.accuracy-trial-marker[hidden],
.accuracy-average-marker[hidden] {
  display: none;
}

.accuracy-gauge-labels {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0.5rem;
  margin-top: 0.35rem;
  color: var(--ink-soft);
  font-family: var(--font-measure);
  font-size: 0.68rem;
  font-variant-numeric: tabular-nums;
}

.accuracy-gauge-labels strong {
  color: var(--ink);
  text-align: center;
}

.accuracy-gauge-labels span:last-child {
  text-align: right;
}

.accuracy-gauge figcaption {
  margin-top: 0.45rem;
  color: var(--ink-soft);
  font-size: 0.72rem;
}

.accuracy-resolution-note,
.accuracy-disclaimer {
  margin: 0.8rem 0 0;
  font-size: 0.76rem;
  line-height: 1.45;
}

.accuracy-resolution-note {
  padding: 0.65rem 0.75rem;
  color: var(--ink);
  background: var(--amber-pale);
  border-left: 3px solid var(--amber);
}

.accuracy-resolution-note[hidden] {
  display: none;
}

.accuracy-disclaimer {
  color: var(--ink-soft);
}

.accuracy-disclaimer strong {
  color: var(--ink);
}

.accuracy-result-actions {
  margin-top: 1rem;
}

.accuracy-result-actions button {
  min-height: 44px;
}

.accuracy-result-actions button:disabled {
  color: var(--ink-soft);
  background: var(--paper);
  border-color: var(--line);
  cursor: not-allowed;
  opacity: 0.72;
}

.accuracy-method {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 1.2rem 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.accuracy-method li {
  min-width: 0;
  padding: 1.15rem clamp(0.8rem, 2vw, 1.4rem);
  border-right: 1px solid var(--line);
}

.accuracy-method li:last-child {
  border-right: 0;
}

.accuracy-method strong,
.accuracy-method span {
  display: block;
}

.accuracy-method strong {
  margin-bottom: 0.3rem;
}

.accuracy-method span {
  color: var(--ink-soft);
  font-size: 0.8rem;
}

.accuracy-notes {
  max-width: 900px;
  margin: 1rem 0 0 auto;
  border-bottom: 1px solid var(--line);
}

.accuracy-notes summary {
  min-height: 50px;
  display: flex;
  align-items: center;
  color: var(--ink);
  font-size: 0.84rem;
  font-weight: 850;
  cursor: pointer;
}

.accuracy-notes > div {
  padding: 0 0 0.8rem;
}

.accuracy-notes p {
  max-width: 72ch;
  margin: 0 0 0.75rem;
  color: var(--ink-soft);
  font-size: 0.84rem;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(280px, 0.8fr) minmax(300px, 1fr);
  align-items: end;
  gap: 3rem;
  margin-bottom: clamp(1.5rem, 4vw, 2.7rem);
}

.section-heading h2,
.section-heading p {
  margin-bottom: 0;
}

.section-heading p,
.context-note,
.method-note {
  color: var(--ink-soft);
}

.table-wrap {
  width: 100%;
  min-width: 0;
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  contain: inline-size;
  background: var(--surface);
  border: 1px solid var(--line-strong);
}

table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
}

caption {
  padding: 0.9rem 1rem;
  color: var(--ink-soft);
  font-size: 0.8rem;
  text-align: left;
}

th,
td {
  padding: 0.9rem 1rem;
  text-align: left;
  border-top: 1px solid var(--line);
}

thead th {
  color: var(--on-ink);
  background: var(--ink);
  border-color: var(--ink);
  font-size: 0.73rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

tbody th {
  font-family: var(--font-measure);
}

tbody tr:hover {
  background: var(--amber-pale);
}

td button {
  min-height: 44px;
  padding: 0.5rem 0.75rem;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 750;
  white-space: nowrap;
}

td button:hover {
  background: var(--input-surface);
  border-color: var(--amber);
}

.principle-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.principle-grid article {
  padding: 1.8rem clamp(1rem, 3vw, 2rem);
  border-right: 1px solid var(--line);
}

.principle-grid article:last-child {
  border-right: 0;
}

.principle-grid p {
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.principle-mark {
  min-width: 48px;
  min-height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 2rem;
  color: var(--ink);
  background: var(--amber-pale);
  border: 1px solid var(--amber);
  font-family: var(--font-measure);
  font-size: 0.75rem;
  font-weight: 900;
  letter-spacing: 0.09em;
}

.size-list {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  margin: 0 0 1.4rem;
  background: var(--ink);
  border: 1px solid var(--ink);
}

.size-list button {
  min-height: 100px;
  padding: 1rem 0.6rem;
  color: var(--on-ink);
  background: transparent;
  border: 0;
  border-right: 1px solid var(--size-divider);
}

.size-list button:last-child {
  border-right: 0;
}

.size-list button:hover,
.size-list button:focus-visible {
  color: var(--ink);
  background: var(--amber-bright);
}

.size-list strong,
.size-list span {
  display: block;
}

.size-list strong {
  font-family: var(--font-measure);
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  font-variant-numeric: tabular-nums;
}

.size-list span {
  margin-top: 0.25rem;
  font-size: 0.7rem;
  font-weight: 750;
}

.context-note {
  max-width: 880px;
  margin: 0;
}

.explanation-section {
  display: grid;
  grid-template-columns: minmax(280px, 0.85fr) minmax(420px, 1.15fr);
  align-items: start;
  gap: clamp(3rem, 9vw, 8rem);
}

.explanation-section > div > p {
  color: var(--ink-soft);
}

.unit-comparison {
  margin-top: 2rem;
  padding: 1rem 0 0 1rem;
  border-top: 1px solid var(--line);
  border-left: 3px solid var(--amber);
}

.unit-comparison h3 {
  margin-bottom: 0.4rem;
}

.unit-comparison p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.method-list {
  margin: 0;
  border-top: 1px solid var(--line-strong);
}

.method-list div {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 1.2rem;
  padding: 1.2rem 0;
  border-bottom: 1px solid var(--line);
}

.method-list dt {
  font-family: var(--font-measure);
  font-weight: 900;
}

.method-list dd {
  margin: 0;
  color: var(--ink-soft);
}

.faq-list {
  max-width: 900px;
  margin-left: auto;
}

.faq-list details {
  border-top: 1px solid var(--line-strong);
}

.faq-list details:last-child {
  border-bottom: 1px solid var(--line-strong);
}

.faq-list summary {
  min-height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.8rem 0;
  cursor: pointer;
  font-size: 1.06rem;
  font-weight: 800;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  content: "+";
  min-width: 32px;
  font-family: var(--font-measure);
  font-size: 1.5rem;
  text-align: center;
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list details p {
  max-width: 740px;
  margin: 0;
  padding: 0 3rem 1.3rem 0;
  color: var(--ink-soft);
}

.source-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-strong);
}

.source-list li {
  display: grid;
  grid-template-columns: minmax(260px, 0.8fr) 1fr;
  gap: 2rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}

.source-list a {
  font-weight: 800;
}

.source-list span {
  color: var(--ink-soft);
}

.method-note {
  max-width: var(--reading);
  margin: 1.5rem 0 0;
  padding-left: 1rem;
  border-left: 3px solid var(--amber);
}

.site-footer {
  width: min(calc(100% - 2rem), var(--content));
  min-height: 160px;
  margin: 0 auto;
  padding: 2.4rem 0;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: start;
  gap: 1rem 3rem;
  border-top: 2px solid var(--ink);
}

.site-footer p {
  margin: 0.25rem 0 0;
  color: var(--ink-soft);
  font-size: 0.8rem;
}

.site-footer > p {
  grid-column: 1 / -1;
}

.legal-dialog {
  width: min(calc(100% - 2rem), 780px);
  max-height: min(86dvh, 860px);
  margin: auto;
  padding: 0;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  box-shadow: var(--dialog-shadow);
}

.legal-dialog::backdrop {
  background: var(--dialog-backdrop);
  backdrop-filter: blur(2px);
}

.legal-dialog-inner {
  max-height: inherit;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
}

.legal-dialog header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.2rem clamp(1rem, 4vw, 2rem);
  border-bottom: 1px solid var(--line);
}

.legal-dialog h2 {
  margin: 0.12rem 0 0;
}

.dialog-close {
  min-width: 64px;
  min-height: 44px;
  padding: 0.55rem 0.8rem;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  font-weight: 800;
}

.dialog-close:hover {
  background: var(--amber-pale);
  border-color: var(--amber);
}

.legal-copy {
  overflow-y: auto;
  padding: 1rem clamp(1rem, 4vw, 2rem) 2.5rem;
  overscroll-behavior: contain;
}

.legal-copy h3 {
  margin: 1.8rem 0 0.35rem;
}

.legal-copy p {
  max-width: 68ch;
}

.legal-page {
  background: var(--paper);
}

.legal-document {
  width: min(calc(100% - 2rem), var(--reading));
  min-height: calc(100vh - 220px);
  margin: 0 auto;
  padding: clamp(3rem, 8vw, 7rem) 0;
}

.legal-document h1 {
  margin-top: 0.2rem;
}

.legal-document h2 {
  margin-top: 2.5rem;
  font-size: 1.45rem;
}

.legal-document p {
  max-width: 68ch;
}

.inline-action {
  width: fit-content;
  margin-top: 1.5rem;
}

.compact-footer {
  min-height: auto;
  grid-template-columns: 1fr auto;
  align-items: center;
}

.compact-footer > p {
  grid-column: auto;
}

.error-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
}

.error-page main {
  width: min(calc(100% - 2rem), 580px);
  padding: 4rem 0;
  text-align: center;
}

.error-page h1 {
  font-size: clamp(2.2rem, 7vw, 4rem);
}

.error-page p:not(.legal-label) {
  color: var(--ink-soft);
}

.error-jigger {
  margin-bottom: 1.5rem;
  fill: none;
  stroke: var(--ink);
  stroke-linejoin: round;
  stroke-width: 2;
}

@media (max-width: 980px) {
  .instrument {
    grid-template-columns: minmax(290px, 0.9fr) minmax(300px, 1.1fr);
    grid-template-areas:
      "controls result"
      "figure figure";
  }

  .result-panel {
    border-right: 0;
  }

  .jigger-figure {
    display: grid;
    grid-template-columns: minmax(230px, 340px) minmax(220px, 1fr);
    align-items: center;
    gap: 1rem;
    padding: 0.5rem 2rem 1.5rem;
    border-top: 1px solid var(--line);
    text-align: left;
  }

  .jigger-figure figcaption {
    margin: 0;
  }

  .size-list {
    grid-template-columns: repeat(4, 1fr);
  }

  .size-list button {
    border-bottom: 1px solid var(--size-divider);
  }
}

@media (max-width: 900px) {
  .accuracy-instrument {
    grid-template-columns: 1fr;
  }

  .accuracy-controls {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
}

@media (max-width: 780px) {
  .explanation-section {
    display: block;
  }

  .method-list {
    margin-top: 2rem;
  }
}

@media (max-width: 700px) {
  html {
    scroll-padding-top: 1rem;
  }

  .site-header {
    width: min(calc(100% - 1.25rem), var(--content));
    min-height: 56px;
  }

  .site-header nav {
    gap: 0.3rem;
  }

  .site-header nav a {
    padding: 0 0.3rem;
  }

  .site-header nav a:nth-child(n + 3) {
    display: none;
  }

  .brand {
    font-size: 0.92rem;
  }

  .brand-mark {
    width: 24px;
    height: 24px;
  }

  .hero {
    width: min(calc(100% - 1rem), var(--content));
    padding: 1rem 0 3.5rem;
  }

  .hero-heading {
    display: block;
    margin-bottom: 0.8rem;
  }

  h1 {
    font-size: clamp(2rem, 10vw, 2.75rem);
  }

  .hero-heading h1 {
    white-space: nowrap;
  }

  .hero-subtitle {
    font-size: 0.92rem;
  }

  .trust-note {
    margin-top: 0.65rem;
    font-size: 0.78rem;
  }

  .trust-note strong {
    display: inline;
  }

  .instrument {
    display: flex;
    flex-direction: column;
    min-height: 0;
    border-radius: var(--radius-sm);
  }

  .controls-panel,
  .result-panel {
    padding: 1rem;
    border-right: 0;
  }

  .controls-panel {
    border-bottom: 1px solid var(--line);
  }

  .amount-unit-row {
    grid-template-columns: 0.8fr 1.2fr;
    gap: 0.6rem;
  }

  .batch-field {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 0.3rem 0.55rem;
  }

  .batch-field .field-note {
    display: none;
  }

  .batch-stepper {
    max-width: none;
  }

  input,
  select {
    min-height: 44px;
    padding: 0.48rem 0.55rem;
  }

  #amount {
    font-size: 1.25rem;
  }

  .field {
    margin-bottom: 0.6rem;
  }

  .field label,
  .custom-grid label,
  fieldset legend {
    margin-bottom: 0.25rem;
    font-size: 0.65rem;
  }

  .amount-field .field-note,
  .advanced-note {
    display: none;
  }

  .field-error {
    min-height: 0;
    margin-top: 0.2rem;
  }

  .field-error:empty {
    display: none;
  }

  .quick-amounts,
  .side-control {
    margin-bottom: 0.6rem;
  }

  .segmented-row button {
    min-height: 44px;
  }

  .preset-field {
    margin-bottom: 0.55rem;
  }

  .preset-field .field-note {
    display: none;
  }

  .side-buttons button {
    min-height: 50px;
    padding: 0.4rem 0.55rem;
  }

  .side-buttons span {
    font-size: 0.59rem;
  }

  .side-buttons strong {
    font-size: 0.8rem;
  }

  .custom-grid {
    grid-template-columns: 1fr;
  }

  .custom-grid label:first-child {
    grid-column: auto;
  }

  .result-kicker {
    margin-bottom: 0.4rem;
  }

  .result-block {
    padding: 0.48rem 0;
  }

  .exact-result p {
    font-size: 1.3rem;
  }

  .rounding-result p {
    font-size: 1.05rem;
  }

  .guidance-result {
    padding-left: 0.65rem;
  }

  #guidance-note {
    display: none;
  }

  .result-actions {
    margin-top: 0.65rem;
  }

  .result-actions button {
    min-height: 44px;
    flex: 1;
  }

  .action-status {
    margin-top: 0.3rem;
  }

  .all-units summary {
    min-height: 40px;
  }

  .jigger-figure {
    display: block;
    padding: 0.5rem 1rem 1rem;
    text-align: center;
  }

  .jigger-figure svg {
    max-width: 260px;
  }

  .jigger-figure figcaption {
    text-align: left;
  }

  .content-section {
    width: min(calc(100% - 1.25rem), var(--content));
    padding: 3.5rem 0;
  }

  .accuracy-controls,
  .accuracy-readout {
    padding: 1rem;
  }

  .accuracy-setup-grid {
    grid-template-columns: 1fr;
    grid-template-areas:
      "capacity"
      "fill"
      "resolution";
    gap: 0.25rem;
  }

  .accuracy-trials {
    margin-top: 0.85rem;
    padding-top: 1rem;
  }

  .accuracy-trial-grid {
    gap: 0.4rem;
  }

  .accuracy-trial-grid > label > span:first-child {
    font-size: 0.64rem;
  }

  .accuracy-input-suffix input {
    min-width: 0;
    padding-right: 1.55rem;
  }

  .accuracy-input-suffix > span {
    right: 0.5rem;
  }

  .accuracy-form-actions button {
    flex: 1;
  }

  .accuracy-readout-heading {
    min-height: 0;
    margin-bottom: 1rem;
  }

  .accuracy-metrics {
    grid-template-columns: 1fr 1fr;
    grid-template-areas:
      "average spread"
      "bias bias";
  }

  .accuracy-metrics div:nth-child(1) {
    grid-area: average;
  }

  .accuracy-metrics div:nth-child(2) {
    grid-area: bias;
    padding-left: 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .accuracy-metrics div:nth-child(3) {
    grid-area: spread;
  }

  .accuracy-method {
    display: block;
  }

  .accuracy-method li {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .accuracy-method li:last-child {
    border-bottom: 0;
  }

  .section-heading,
  .explanation-section {
    display: block;
  }

  .section-heading {
    margin-bottom: 1.5rem;
  }

  .section-heading p {
    margin-top: 0.8rem;
  }

  .principle-grid {
    display: block;
  }

  .principle-grid article {
    padding: 1.4rem 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .principle-grid article:last-child {
    border-bottom: 0;
  }

  .principle-mark {
    margin-bottom: 1rem;
  }

  .size-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .size-list button {
    min-height: 80px;
  }

  .method-list {
    margin-top: 2rem;
  }

  .method-list div {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }

  .faq-list summary {
    font-size: 0.96rem;
  }

  .source-list li {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }

  .site-footer {
    width: min(calc(100% - 1.25rem), var(--content));
    display: block;
  }

  .site-footer nav {
    margin-top: 1rem;
    flex-wrap: wrap;
  }

  .site-footer > p {
    margin-top: 1.25rem;
  }

  .legal-dialog {
    width: calc(100% - 1rem);
    max-height: calc(100dvh - 1rem);
  }

  .legal-dialog header {
    padding: 0.8rem 1rem;
  }

  .legal-dialog h2 {
    font-size: 1.5rem;
  }

  .legal-document {
    width: calc(100% - 2rem);
    padding: 3rem 0;
  }

  .compact-footer nav {
    margin-top: 0.5rem;
  }
}

@media (max-width: 360px) {
  .site-header nav a:nth-child(2) {
    display: none;
  }

  .hero-heading h1 {
    font-size: clamp(1.72rem, 9vw, 1.95rem);
    letter-spacing: -0.045em;
  }

  .segmented-row button {
    font-size: 0.86rem;
  }

  .accuracy-choice-row label {
    min-height: 62px;
    padding-inline: 0.5rem;
  }

  .accuracy-form-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .accuracy-form-actions button {
    padding-inline: 0.45rem;
    font-size: 0.72rem;
  }

  .accuracy-gauge-track {
    height: 72px;
  }

  .result-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .jigger-figure svg {
    max-width: 235px;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #eef2f0;
    --ink-soft: #b8c1bd;
    --on-ink: #121719;
    --paper: #171c1e;
    --paper-deep: #20282b;
    --surface: #22292b;
    --surface-start: #252d30;
    --surface-end: #1b2224;
    --input-surface: #111719;
    --grid-line: rgb(238 242 240 / 2.5%);
    --line: #566267;
    --line-strong: #89959a;
    --steel: #93a0a5;
    --amber: #e19a27;
    --amber-bright: #ffbd4a;
    --amber-pale: #3b2b13;
    --error: #ff8b83;
    --error-ink: #ffaaa4;
    --error-surface: #351b1b;
    --success: #78d2ab;
    --link: #7fd6e8;
    --link-hover: #ffbd70;
    --info: #7fd6e8;
    --instrument-accent: rgb(255 189 74 / 4%);
    --cup-shadow: rgb(0 0 0 / 26%);
    --cup-stroke: #b5c0c3;
    --cup-rim: #d3dcde;
    --cup-glint: #ffffff;
    --callout: #ffbd4a;
    --size-divider: #6b767b;
    --noscript-ink: #ffd28a;
    --dialog-shadow: 0 18px 46px rgb(0 0 0 / 26%);
    --dialog-backdrop: rgb(0 0 0 / 72%);
    --steel-stop-1: #58656a;
    --steel-stop-2: #c5cecf;
    --steel-stop-3: #707d82;
    --steel-stop-4: #e5e8e5;
    --steel-stop-5: #4e5a5f;
    --shadow: 0 14px 34px rgb(0 0 0 / 24%);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media (forced-colors: active) {
  :root {
    --ink: CanvasText;
    --ink-soft: CanvasText;
    --on-ink: Canvas;
    --paper: Canvas;
    --paper-deep: Canvas;
    --surface: Canvas;
    --surface-start: Canvas;
    --surface-end: Canvas;
    --input-surface: Field;
    --grid-line: transparent;
    --amber: Highlight;
    --amber-bright: Highlight;
    --amber-pale: Canvas;
    --error: CanvasText;
    --error-ink: CanvasText;
    --error-surface: Canvas;
    --success: CanvasText;
    --link: LinkText;
    --link-hover: LinkText;
    --info: CanvasText;
    --line: CanvasText;
    --line-strong: CanvasText;
    --cup-shadow: transparent;
    --cup-stroke: CanvasText;
    --cup-rim: CanvasText;
    --cup-glint: CanvasText;
    --callout: Highlight;
    --size-divider: CanvasText;
    --shadow: none;
  }

  .instrument,
  .accuracy-instrument,
  .accuracy-gauge-track,
  .table-wrap,
  .size-list,
  .legal-dialog {
    border: 2px solid CanvasText;
    box-shadow: none;
  }

  .verified-highlight,
  .verified-mark,
  .diagram-callout path,
  .diagram-callout circle {
    stroke: Highlight;
    forced-color-adjust: auto;
  }

  #liquid-fill,
  .instrument::before {
    display: none;
  }

  .accuracy-gauge-band {
    background: Highlight;
    border-color: Highlight;
    forced-color-adjust: none;
  }

  .accuracy-trial-marker,
  .accuracy-average-marker {
    background: CanvasText;
    border-color: Canvas;
    forced-color-adjust: auto;
  }

  .cup-shell,
  .cup-rim,
  .cup-glint {
    fill: Canvas;
    stroke: CanvasText;
  }

  .result-actions .primary-action,
  .primary-action,
  .size-list button {
    border: 1px solid ButtonText;
  }
}

@media print {
  @page {
    margin: 12mm;
  }

  :root {
    --ink: #000;
    --ink-soft: #222;
    --on-ink: #fff;
    --paper: #fff;
    --paper-deep: #fff;
    --surface: #fff;
    --surface-start: #fff;
    --surface-end: #fff;
    --input-surface: #fff;
    --grid-line: transparent;
    --line: #777;
    --line-strong: #333;
    --link: #000;
    --link-hover: #000;
    --info: #000;
    --error: #000;
    --error-ink: #000;
    --error-surface: #fff;
    --success: #000;
  }

  *,
  *::before,
  *::after {
    box-shadow: none !important;
    text-shadow: none !important;
  }

  .site-header nav,
  .hero-heading,
  .instrument,
  .capability-disclosure,
  .accuracy-controls,
  .accuracy-result-actions,
  .accuracy-resolution-note,
  .noscript-note,
  .reading-section,
  .explanation-section,
  .faq-section,
  .site-footer nav,
  .legal-dialog,
  dialog,
  td:last-child,
  th:last-child {
    display: none !important;
  }

  body {
    color: #000;
    background: #fff !important;
    background-image: none !important;
  }

  .site-header,
  .hero,
  .content-section,
  .site-footer {
    width: 100%;
  }

  .site-header {
    min-height: 0;
    padding-bottom: 0.35rem;
  }

  .hero {
    padding: 0.6rem 0 0;
  }

  .accuracy-instrument {
    display: block;
    border: 1px solid #333;
  }

  .accuracy-readout {
    padding: 0.8rem;
    background: #fff;
  }

  .accuracy-method {
    break-inside: avoid;
  }

  .print-spoon-note {
    display: block;
    margin: 0 0 1rem;
    padding: 0.55rem 0;
    color: #000;
    border-top: 1px solid #777;
    border-bottom: 1px solid #777;
  }

  .content-section {
    padding: 1.1rem 0;
  }

  .section-heading {
    display: block;
    margin-bottom: 0.7rem;
  }

  .section-heading p {
    margin-top: 0.35rem;
    color: #222;
  }

  .table-wrap,
  .principle-grid,
  .size-list button {
    background: #fff !important;
    border-color: #333 !important;
  }

  table {
    min-width: 0;
  }

  thead th,
  th,
  td {
    padding: 0.45rem 0.55rem;
    color: #000 !important;
    background: #fff !important;
    border-color: #777 !important;
  }

  .size-list button {
    min-height: 0;
    padding: 0.55rem;
    color: #000;
  }

  .faq-list summary::after {
    display: none !important;
    content: none !important;
  }

  .content-section {
    break-inside: avoid;
  }
}