:root {
  color-scheme: light;
  --paper: #f5f3eb;
  --ink: #162c37;
  --muted: #627174;
  --green: #19704f;
  --green-light: #e9f2e9;
  --line: #dce0d6;
  --white: #fffefa;
  --error: #9b3c2a;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none
}

* {
  box-sizing: border-box
}

html {
  scroll-behavior: smooth
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.55
}

button, input, select {
  font: inherit
}

button, a, input, select, summary {
  -webkit-tap-highlight-color: transparent
}

button {
  cursor: pointer
}

button:disabled {
  cursor: wait;
  opacity: .5
}

button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, summary:focus-visible {
  outline: 3px solid #79ae89;
  outline-offset: 4px
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px
}

button, input, select {
  border-radius: 6px
}

[hidden] {
  display: none!important
}

.page-shell {
  max-width: 1184px;
  margin: 0 auto;
  padding: 0 40px
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -100px;
  padding: 12px;
  background: var(--white);
  z-index: 5
}

.skip-link:focus {
  top: 16px
}

.masthead {
  min-height: 94px;
  display: flex;
  align-items: center;
  gap: 26px;
  border-bottom: 1px solid var(--line)
}

.wordmark {
  font-weight: 800;
  font-size: 31px;
  letter-spacing: -2px;
  text-decoration: none
}

.wordmark-dot, .title-dot {
  color: var(--green)
}

.masthead-caption {
  font-size: 12px;
  color: var(--muted)
}

.repository-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px 22px;
  margin-left: auto
}

.repository-links a {
  white-space: nowrap
}

.text-link {
  font-weight: 600;
  font-size: 12px;
  text-decoration: none
}

.text-link:hover {
  text-decoration: underline
}

.text-link span {
  margin-left: 5px
}

.introduction {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 30px;
  padding: 47px 0 33px
}

.eyebrow {
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 1.8px;
  margin: 0 0 12px;
  color: var(--green)
}

h1, h2, p {
  margin-top: 0
}

h1 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(36px, 4.4vw, 54px);
  font-weight: 400;
  letter-spacing: -2px;
  line-height: 1.08;
  margin-bottom: 15px
}

.intro-copy {
  font-size: 15px;
  color: #53666a;
  margin-bottom: 0;
  line-height: 1.65
}

.runtime-note {
  max-width: 285px;
  padding-bottom: 3px;
  flex-shrink: 0
}

.runtime-note>p {
  margin: 10px 0 0;
  font-size: 11px;
  color: var(--muted);
  line-height: 1.7
}

.runtime-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 600;
  max-width: 285px
}

.status-dot {
  height: 7px;
  width: 7px;
  flex-shrink: 0;
  background: #b58b40;
  border-radius: 50%
}

.runtime-status.ready .status-dot {
  background: var(--green);
  box-shadow: 0 0 0 4px #19704f0e
}

.runtime-status.error {
  color: var(--error)
}

.runtime-status.error .status-dot {
  background: var(--error)
}

.text-button {
  padding: 0;
  background: transparent;
  border: 0;
  color: var(--green);
  font-size: 12px;
  text-decoration: underline;
  text-underline-offset: 3px;
  margin-top: 10px
}

.workbench {
  border: 1px solid #d2d9ce;
  border-radius: 11px;
  background: var(--white);
  overflow: hidden;
  box-shadow: 0 12px 32px #23392b05;
  scroll-margin-top: 20px
}

.scenario-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: #eeeee6;
  border-bottom: 1px solid #d8ddd2;
  padding: 0 27px
}

.scenario-options {
  display: flex;
  gap: 24px
}

.scenario {
  background: transparent;
  border: 0;
  border-bottom: 3px solid transparent;
  border-radius: 0;
  padding: 16px 0 13px;
  font-size: 13px;
  font-weight: 650;
  color: var(--muted);
  white-space: nowrap
}

.scenario:hover {
  color: var(--ink)
}

.scenario.active {
  border-bottom-color: var(--green);
  color: var(--ink)
}

.scenario-number {
  font-size: 9px;
  margin-right: 7px;
  color: #859088;
  font-weight: 500
}

.scenario.active .scenario-number {
  color: var(--green)
}

.function-count {
  font-size: 10px;
  color: var(--muted)
}

.workbench-body {
  display: grid;
  grid-template-columns: 1fr 1fr
}

.controls {
  padding: 28px 31px 30px;
  border-right: 1px solid var(--line)
}

label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  margin-bottom: 8px
}

.select-wrap {
  position: relative
}

.select-wrap::after {
  content: "⌄";
  position: absolute;
  right: 15px;
  top: 7px;
  font-size: 19px;
  pointer-events: none;
  color: var(--muted)
}

select {
  width: 100%;
  appearance: none;
  background: var(--white);
  border: 1px solid #bdc8bc;
  color: var(--ink);
  padding: 11px 37px 11px 13px;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 13px;
  line-height: 1.5
}

input {
  width: 100%;
  border: 1px solid #bdc8bc;
  background: #fafbf6;
  color: var(--ink);
  padding: 10px 13px;
  font-size: 23px;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  letter-spacing: -.7px;
  line-height: 1.4;
  min-width: 0
}

.field-description {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.6;
  margin: 10px 0 20px;
  min-height: 35px
}

.input-fields {
  display: flex;
  gap: 12px
}

.input-field {
  flex: 1;
  min-width: 0
}

.domain {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 10px;
  color: var(--muted);
  margin: 9px 0 0
}

.domain code {
  font-size: 10px;
  color: var(--ink);
  background: #ecefe5;
  border-radius: 3px;
  padding: 1px 5px;
  white-space: normal
}

.input-range {
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 9px;
  line-height: 1.6;
  color: var(--muted);
  margin: 4px 0 0;
  overflow-wrap: anywhere
}

.input-help {
  font-size: 10px;
  line-height: 1.55;
  color: var(--muted);
  margin: 8px 0 20px;
  min-height: 30px
}

.run-actions {
  display: flex;
  align-items: center;
  gap: 17px
}

.primary-button, .secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  border: 1px solid transparent;
  padding: 12px 17px;
  font-size: 12px;
  font-weight: 650;
  line-height: 1.5;
  transition: background .15s
}

.primary-button {
  color: #fff;
  background: var(--green);
  min-width: 180px
}

.primary-button:hover:not(:disabled) {
  background: #12593e
}

.primary-button span, .secondary-button span {
  font-size: 17px;
  line-height: 1
}

.keyboard-hint {
  font-size: 10px;
  color: var(--muted)
}

.share-actions {
  margin-top: 14px
}

.share-actions .text-button {
  font-size: 11px
}

.share-status {
  font-size: 12px;
  line-height: 1.6;
  color: var(--green);
  padding: 10px 12px;
  background: #e7f0e4;
  border-radius: 4px
}

.share-status.error {
  color: var(--error);
  background: #f6eae1
}

.share-reset {
  margin: 0 0 18px
}

#share-fallback {
  margin-top: 12px
}

#share-url {
  width: 100%;
  resize: vertical;
  padding: 9px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #fff;
  font: 11px/1.5 ui-monospace, SFMono-Regular, Consolas, monospace
}

.result-panel {
  padding: 29px 31px 22px;
  background: linear-gradient(145deg, #f8faf3, #f0f4ec);
  display: flex;
  flex-direction: column;
  min-width: 0
}

.panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px
}

.panel-heading h2 {
  font-size: 11px;
  margin: 0;
  font-weight: 700
}

.result-badge {
  font-size: 8px;
  letter-spacing: 1px;
  border: 1px solid #ced8c8;
  border-radius: 4px;
  color: #718071;
  padding: 3px 6px;
  font-weight: 600
}

.result-badge.success {
  color: var(--green);
  border-color: #bbd2bc;
  background: #e7f0e4
}

.result-badge.error {
  color: var(--error);
  border-color: #ddbeb1;
  background: #f6eae1
}

.result-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 195px;
  padding: 27px 0
}

.result-placeholder {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 27px;
  line-height: 1.2;
  letter-spacing: -.8px;
  color: #7c8980;
  margin: 0 0 12px;
  max-width: 235px
}

.result-placeholder>span {
  display: block;
  margin-top: 16px;
  font-family: ui-sans-serif, sans-serif;
  font-size: 22px;
  color: #8b9e8c
}

.result-detail {
  color: var(--muted);
  font-size: 11px;
  margin: 0
}

.result-type {
  color: var(--green);
  font-size: 10px;
  font-weight: 650;
  letter-spacing: .8px;
  margin-bottom: 8px;
  text-transform: uppercase
}

.result-value {
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: clamp(22px, 3vw, 38px);
  line-height: 1.2;
  letter-spacing: -1.4px;
  overflow-wrap: anywhere;
  margin-bottom: 12px;
  color: var(--ink)
}

.result-value.text-result {
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(27px, 3.3vw, 41px);
  letter-spacing: -1px
}

.result-value.boolean-true {
  color: var(--green)
}

.result-empty {
  font-size: 32px
}

.result-error {
  font-size: 16px;
  color: var(--error);
  line-height: 1.5;
  overflow-wrap: anywhere;
  margin-bottom: 12px
}

.pair-result {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin: 4px 0 12px
}

.pair-part {
  padding-left: 13px;
  border-left: 2px solid #bfd2be
}

.pair-part span {
  font-size: 10px;
  color: var(--muted)
}

.pair-part strong {
  display: block;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 28px;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: -1px
}

.source-line {
  display: flex;
  gap: 14px;
  align-items: baseline;
  border-top: 1px solid #d4dfcf;
  padding-top: 15px;
  font-size: 10px
}

.source-line>span {
  color: var(--muted);
  white-space: nowrap
}

.source-line code {
  overflow-wrap: anywhere;
  font-size: 11px
}

.source-link {
  font-size: 10px;
  margin-top: 8px;
  width: fit-content
}

.raw-result {
  margin-bottom: 18px
}

.raw-result summary {
  color: var(--muted);
  font-size: 10px;
  cursor: pointer
}

.raw-result pre {
  font-size: 10px;
  line-height: 1.6;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  background: #ffffff80;
  border: 1px solid #d8e0d2;
  border-radius: 5px;
  padding: 10px;
  max-height: 220px;
  overflow: auto;
  margin: 8px 0 0
}

.checks-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 38px;
  padding: 29px 0 30px;
  margin: 0;
  border-bottom: 1px solid var(--line)
}

.checks-copy {
  max-width: 560px
}

.checks-copy .eyebrow {
  font-size: 9px;
  margin-bottom: 7px
}

h2 {
  font-size: 17px;
  letter-spacing: -.35px;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 8px
}

.checks-copy>p:last-child {
  font-size: 11px;
  color: var(--muted);
  line-height: 1.65;
  margin: 0
}

.checks-action {
  width: 266px;
  flex-shrink: 0
}

.secondary-button {
  border-color: #b5c3b3;
  background: transparent;
  width: 100%;
  color: var(--ink);
  font-size: 11px
}

.secondary-button:hover:not(:disabled) {
  background: #e8ede2
}

.checks-status {
  font-size: 10px;
  line-height: 1.6;
  margin: 8px 0 0;
  color: var(--muted)
}

.checks-status.error {
  color: var(--error)
}

.checks-status.success {
  color: var(--green)
}

progress {
  display: block;
  width: 100%;
  height: 4px;
  margin-top: 10px;
  accent-color: var(--green)
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 65px;
  padding: 35px 0 40px
}

.about-grid .eyebrow {
  font-size: 9px;
  margin-bottom: 10px
}

.scope-copy>p:not(.eyebrow) {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.75;
  margin-bottom: 14px
}

.scope-copy {
  min-width: 0
}

.language-example {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  padding: 16px;
  margin: 0 0 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--white);
  font-size: 11px;
  line-height: 1.8
}

.language-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px
}

.provenance-card {
  border-left: 1px solid var(--line);
  padding-left: 31px
}

.metadata-status {
  font-size: 11px;
  color: var(--muted)
}

.build-details {
  font-size: 11px;
  margin: 15px 0
}

.build-details>div {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 5px 0
}

.build-details dt {
  color: var(--muted)
}

.build-details dd {
  margin: 0;
  text-align: right;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  overflow-wrap: anywhere
}

.build-details a {
  text-decoration-color: #c1ccbb
}

.evidence-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 17px;
  font-size: 10px
}

.evidence-links a {
  text-decoration-color: #9eb39e
}

.evidence-note {
  font-size: 10px;
  line-height: 1.6;
  color: var(--muted);
  margin: 14px 0 0
}

footer {
  border-top: 1px solid var(--line);
  padding: 19px 0 25px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: var(--muted);
  font-size: 9px
}

@media(min-width:1300px) {
  .introduction {
    padding-top: 54px;
    padding-bottom: 38px
  }

  .controls {
    padding: 30px 35px
  }

  .result-panel {
    padding: 31px 35px 24px
  }

}

@media(max-width:850px) {
  .page-shell {
    padding: 0 26px
  }

  .masthead-caption {
    display: none
  }

  .introduction {
    padding-top: 36px;
    gap: 20px
  }

  .runtime-note {
    max-width: 220px
  }

  .runtime-status {
    font-size: 10px
  }

  .runtime-note>p {
    font-size: 10px
  }

  h1 {
    font-size: 42px
  }

  .function-count {
    display: none
  }

  .scenario-options {
    width: 100%;
    justify-content: space-between;
    gap: 18px
  }

  .controls, .result-panel {
    padding: 24px
  }

  .keyboard-hint {
    display: none
  }

  .primary-button {
    width: 100%
  }

  .about-grid {
    gap: 35px
  }

  .provenance-card {
    padding-left: 24px
  }

  .checks-panel {
    gap: 25px
  }

  .checks-action {
    width: 235px
  }

  .source-line {
    flex-wrap: wrap;
    gap: 4px 10px
  }

}

@media(max-width:620px) {
  .page-shell {
    padding: 0 18px
  }

  .masthead {
    min-height: 73px
  }

  .wordmark {
    font-size: 29px
  }

  .repository-links {
    gap: 6px 14px
  }

  .repository-links .text-link {
    font-size: 11px
  }

  .introduction {
    display: block;
    padding: 28px 0 23px
  }

  .eyebrow {
    font-size: 9px;
    letter-spacing: 1.5px
  }

  h1 {
    font-size: 39px;
    letter-spacing: -1.7px;
    max-width: 350px
  }

  .intro-copy {
    font-size: 13px
  }

  .runtime-note {
    max-width: none;
    margin-top: 20px;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 4px 15px;
    padding: 0
  }

  .runtime-note>p {
    margin: 0;
    font-size: 9px
  }

  .runtime-note>p br {
    display: none
  }

  .runtime-note .text-button {
    margin-top: 0;
    font-size: 10px
  }

  .runtime-status {
    font-size: 10px;
    max-width: none
  }

  .scenario-bar {
    padding: 0 21px
  }

  .scenario {
    font-size: 12px;
    padding-top: 14px;
    padding-bottom: 12px
  }

  .scenario-number {
    font-size: 8px;
    margin-right: 5px
  }

  .workbench-body {
    grid-template-columns: 1fr
  }

  .controls {
    border-right: 0;
    border-bottom: 1px solid var(--line);
    padding: 23px
  }

  .field-description {
    min-height: 0;
    margin-bottom: 17px
  }

  .input-help {
    min-height: 0;
    margin-bottom: 19px
  }

  .primary-button {
    width: auto;
    min-width: 175px
  }

  .keyboard-hint {
    display: inline
  }

  .result-panel {
    padding: 22px 23px
  }

  .result-content {
    min-height: 175px;
    padding: 24px 0
  }

  .result-placeholder {
    font-size: 27px;
    max-width: none
  }

  .result-placeholder>span {
    display: inline;
    margin-left: 14px
  }

  .result-value {
    font-size: 34px
  }

  .result-value.text-result {
    font-size: 35px
  }

  .source-line {
    padding-top: 12px
  }

  .checks-panel {
    display: block;
    padding: 25px 0
  }

  .checks-copy {
    max-width: none
  }

  .checks-action {
    width: 100%;
    margin-top: 18px
  }

  .secondary-button {
    width: auto;
    min-width: 225px
  }

  .checks-status {
    max-width: 100%
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 29px 0
  }

  .provenance-card {
    border-left: 0;
    border-top: 1px solid var(--line);
    padding: 26px 0 0
  }

  .build-details {
    max-width: 430px
  }

  .build-details>div {
    justify-content: flex-start
  }

  .build-details dt {
    min-width: 117px
  }

  .build-details dd {
    text-align: left
  }

  footer {
    display: block;
    font-size: 9px;
    padding-bottom: 20px
  }

  footer>span {
    display: block;
    margin-bottom: 5px
  }

  .desktop-break {
    display: none
  }

}

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

  button {
    transition: none
  }

}

.license-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: flex-start
}

.license-links a {
  text-decoration-color: #b4c0ad
}

@media(max-width:620px) {
  .license-links {
    margin-top: 12px
  }

}

/* Keep three and four channel labels readable at narrow widths. */
.input-fields.color-inputs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr))
}

.color-swatch {
  height: 64px;
  border: 1px solid var(--muted);
  border-radius: 6px;
  margin-top: 20px
}

.swatch-caption {
  margin: 7px 0 0;
  font-size: 11px;
  color: var(--muted)
}

@media (max-width: 620px) {
  .scenario-options {
    gap: 10px;
    flex-wrap: wrap
  }
}

/* Signed 64-bit inputs need a full row even on a narrow screen. */
.input-fields.duration-inputs,
.input-fields.rotation-inputs {
  display: grid;
  grid-template-columns: minmax(0, 1fr)
}

.duration-inputs input,
.rotation-inputs #second-input {
  font-size: clamp(14px, 4.2vw, 19px);
  letter-spacing: -.3px
}

.bit-preview {
  margin-top: 20px;
  max-width: 290px
}

.bit-preview p {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 8px 0;
  font-size: 12px;
  color: var(--muted)
}

.bit-preview code {
  font-size: 20px;
  letter-spacing: .15em;
  color: var(--ink)
}

.duration-presets {
  margin: 18px 0
}

.duration-presets select {
  width: 100%;
  min-height: 44px;
  font-size: 13px
}

.result-value.duration-result {
  font-size: clamp(19px, 4.8vw, 29px);
  letter-spacing: -.4px;
  overflow-wrap: anywhere
}

.whitespace-presets {
  margin: 18px 0
}

.whitespace-presets select {
  font-size: 12px
}

.codepoint-helper {
  padding: 13px;
  margin: 0 0 20px;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: #f8faf3
}

#codepoint-input {
  display: block;
  width: 100%;
  min-width: 0;
  resize: vertical;
  padding: 8px 10px;
  border: 1px solid #bdc8bc;
  background: var(--white);
  color: var(--ink);
  font: 20px/1.4 ui-monospace, SFMono-Regular, Consolas, monospace
}

#codepoint-help, #codepoint-status {
  font-size: 11px;
  line-height: 1.55;
  overflow-wrap: anywhere;
  margin: 8px 0 0;
  color: var(--muted)
}

#codepoint-status.error {
  color: var(--error)
}