/* Hallmark · macrostructure: Workbench · tone: editorial newsprint · anchor hue: ink red
 * theme: Newsprint · enrichment: E4 real app captures · nav: N6 Masthead · footer: Ft1 Mast-headed
 * pre-emit critique: P5 H5 E5 S5 R5 V5
 * contrast: pass (40–41) · nav: N6 · footer: Ft1 · slop: pass (42–45)
 * honest: pass (46) · chrome: pass (47) · tokens: pass (48) · responsive: pass (49)
 * mobile: pass (34, 49, 50–57) · icons: pass (30)
 */

@import url("./tokens.css");

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  overflow-x: clip;
  scroll-behavior: smooth;
}

body {
  min-width: 20rem;
  margin: 0;
  overflow-x: clip;
  color: var(--color-ink);
  background-color: var(--color-paper);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.55;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  background-image:
    radial-gradient(circle at 12% 18%, var(--color-fibre) 0 0.6px, var(--color-clear) 0.7px),
    radial-gradient(circle at 78% 66%, var(--color-fibre) 0 0.5px, var(--color-clear) 0.7px);
  background-size: 9px 11px, 13px 15px;
}

::selection {
  color: var(--color-ink);
  background: var(--color-selection);
}

img,
svg {
  display: block;
}

img {
  max-width: 100%;
  height: auto;
}

button,
textarea,
input {
  color: inherit;
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: var(--color-clear);
}

a {
  color: inherit;
  text-decoration-thickness: var(--rule-hairline);
  text-underline-offset: 0.22em;
}

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

:focus-visible {
  outline: var(--rule-heavy) solid var(--color-focus);
  outline-offset: var(--space-2xs);
}

.skip-link {
  position: fixed;
  top: var(--space-md);
  left: var(--space-md);
  z-index: 4;
  padding: var(--space-sm) var(--space-md);
  color: var(--color-paper);
  background: var(--color-ink);
  transform: translateY(-180%);
}

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

.page-shell {
  width: min(100% - 2rem, 76rem);
  margin-inline: auto;
}

.masthead {
  padding-top: var(--space-lg);
}

.masthead__edition,
.masthead__links {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  line-height: 1;
  text-transform: uppercase;
}

.masthead__edition {
  padding-block: var(--space-xs);
  border-top: var(--rule-hairline) solid var(--color-rule-strong);
  border-bottom: var(--rule-hairline) solid var(--color-rule);
}

.masthead__edition--beta {
  justify-content: flex-end;
}

.wordmark {
  margin: 0;
  padding-block: var(--space-sm) var(--space-xs);
  font-family: var(--font-display);
  font-size: var(--text-masthead);
  font-weight: 700;
  line-height: 0.92;
  letter-spacing: -0.055em;
  text-align: center;
}

.wordmark a {
  text-decoration: none;
}

.wordmark__ink {
  color: var(--color-accent);
  font-style: normal;
}

.masthead__links {
  padding-block: var(--space-sm);
  border-top: var(--rule-heavy) double var(--color-rule-strong);
  border-bottom: var(--rule-heavy) double var(--color-rule-strong);
}

.masthead__nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-lg);
}

.masthead__nav a {
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
}

.theme-toggle,
.text-button,
.primary-button,
.example-button {
  min-height: 2.75rem;
  border: var(--rule-hairline) solid var(--color-rule-strong);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition:
    color var(--dur-fast) var(--ease-out),
    background-color var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out),
    transform var(--dur-fast) var(--ease-out);
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding-inline: var(--space-sm);
  color: var(--color-ink);
  background: var(--color-clear);
  font-size: var(--text-xs);
  line-height: 1;
  text-transform: uppercase;
}

.theme-toggle svg {
  width: 1rem;
  height: 1rem;
}

.theme-toggle:hover,
.example-button:hover {
  color: var(--color-paper);
  background: var(--color-ink);
}

.theme-toggle:disabled,
.example-button:disabled {
  cursor: not-allowed;
  color: var(--color-ink-faint);
  background: var(--color-paper-soft);
  opacity: 0.55;
  transform: none;
}

.theme-toggle:active,
.primary-button:active,
.example-button:active {
  transform: translateY(1px);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(18rem, 0.72fr);
  align-items: center;
  gap: clamp(var(--space-2xl), 7vw, var(--space-4xl));
  min-height: min(49rem, calc(100dvh - 10rem));
  padding-block: var(--space-2xl) var(--space-3xl);
  border-bottom: var(--rule-hairline) solid var(--color-rule-strong);
}

.hero__copy {
  align-self: center;
}

.hero h1 {
  max-width: 11ch;
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--text-display-s);
  font-weight: 500;
  line-height: 0.91;
  letter-spacing: -0.055em;
}

.hero h1 em {
  color: var(--color-accent);
  font-style: normal;
  font-weight: 600;
}

.hero__lede {
  max-width: 60ch;
  margin: var(--space-xl) 0 0;
  color: var(--color-ink-muted);
  font-size: var(--text-lg);
}

.launch-line {
  margin: var(--space-lg) 0 0;
  color: var(--color-accent);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.035em;
}

.hero__links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.hero__links a {
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  font-weight: 600;
}

.app-capture {
  position: relative;
  width: min(100%, 27rem);
  margin-inline: auto;
}

.app-capture::before {
  position: absolute;
  inset: 4% 8% -2%;
  z-index: -1;
  content: "";
  background: var(--color-shadow);
  filter: blur(2rem);
}

.app-capture img {
  width: 100%;
  height: clamp(26rem, 52vh, 31rem);
  border: var(--rule-hairline) solid var(--color-rule);
  border-radius: var(--radius-lg);
  box-shadow: 0 1.75rem 4rem var(--color-shadow);
  object-fit: cover;
  object-position: top;
}

.app-capture figcaption,
.figure-note,
.small-print {
  color: var(--color-ink-muted);
  font-size: var(--text-sm);
}

.app-capture figcaption {
  margin-top: var(--space-sm);
  font-size: var(--text-xs);
}

.workbench {
  display: grid;
  grid-template-columns: minmax(0, 1.07fr) minmax(17rem, 0.93fr);
  gap: 0;
  margin-block: var(--space-5xl);
  border-top: var(--rule-heavy) solid var(--color-rule-strong);
  border-bottom: var(--rule-heavy) solid var(--color-rule-strong);
}

.workbench__input,
.workbench__output {
  min-width: 0;
  padding: clamp(var(--space-lg), 4vw, var(--space-2xl));
}

.workbench__input {
  border-right: var(--rule-hairline) solid var(--color-rule-strong);
}

.section-heading {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(var(--text-3xl), 5vw, 4.5rem);
  font-weight: 500;
  line-height: 0.96;
  letter-spacing: -0.045em;
}

.workbench__input > .section-heading {
  margin-bottom: var(--space-xl);
}

.section-intro {
  max-width: 64ch;
  margin: var(--space-md) 0 var(--space-xl);
  color: var(--color-ink-muted);
}

.field-label {
  display: block;
  margin-bottom: var(--space-xs);
  font-size: var(--text-sm);
  font-weight: 600;
}

.note-input {
  display: block;
  width: 100%;
  min-height: 12.5rem;
  resize: vertical;
  padding: var(--space-md);
  border: var(--rule-hairline) solid var(--color-rule-strong);
  border-radius: var(--radius-sm);
  outline: 2px solid var(--color-clear);
  outline-offset: 1px;
  color: var(--color-ink);
  background: var(--color-paper-raised);
  font-family: var(--font-mono);
  font-size: var(--text-ui);
  line-height: 1.75;
}

.note-input:hover {
  border-color: var(--color-accent);
}

.note-input:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 1px;
}

.note-input[aria-invalid="true"] {
  border-color: var(--color-error);
}

.note-input:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

.field-help {
  min-height: 1lh;
  margin: var(--space-xs) 0 0;
  color: var(--color-ink-faint);
  font-size: var(--text-sm);
}

.field-help[data-state="ready"] {
  color: var(--color-success);
}

.field-help[data-state="error"] {
  color: var(--color-error);
}

.example-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-top: var(--space-md);
}

.example-button {
  padding-inline: var(--space-sm);
  color: var(--color-ink-muted);
  background: var(--color-clear);
  font-size: var(--text-xs);
}

.primary-button {
  width: 100%;
  margin-top: var(--space-lg);
  padding-inline: var(--space-lg);
  border-color: var(--color-accent);
  color: var(--color-accent-ink);
  background: var(--color-accent);
  font-weight: 700;
}

.primary-button:hover {
  background: var(--color-accent-pressed);
  border-color: var(--color-accent-pressed);
}

.primary-button:disabled {
  cursor: progress;
  color: var(--color-ink-muted);
  background: var(--color-paper-soft);
  border-color: var(--color-rule);
  transform: none;
}

.output-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: var(--rule-hairline) solid var(--color-rule-strong);
}

.output-heading h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 500;
}

.engine-label {
  color: var(--color-ink-faint);
  font-size: var(--text-xs);
  text-align: right;
}

.parser-results {
  min-height: 18rem;
}

.parser-placeholder {
  max-width: 50ch;
  margin: 0;
  color: var(--color-ink-muted);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-style: italic;
}

.parser-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.parser-item {
  padding-block: var(--space-md);
  border-bottom: var(--rule-hairline) solid var(--color-rule);
}

.parser-item:first-child {
  padding-top: 0;
}

.parser-item h4 {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  text-transform: capitalize;
}

.set-line {
  margin: var(--space-2xs) 0 0;
  color: var(--color-ink-muted);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-variant-numeric: tabular-nums;
}

.tour {
  padding-bottom: var(--space-5xl);
}

.tour__lead {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(18rem, 1.28fr);
  gap: clamp(var(--space-2xl), 8vw, var(--space-4xl));
  align-items: start;
  padding-bottom: var(--space-4xl);
}

.tour__copy {
  position: sticky;
  top: var(--space-xl);
}

.tour__copy p {
  color: var(--color-ink-muted);
}

.journal-capture {
  margin: 0;
}

.journal-capture img {
  width: min(100%, 35rem);
  margin-left: auto;
  border: var(--rule-hairline) solid var(--color-rule);
  border-radius: var(--radius-lg);
  box-shadow: 0 1.75rem 4rem var(--color-shadow);
}

.journal-capture figcaption {
  width: min(100%, 35rem);
  margin: var(--space-sm) 0 0 auto;
  color: var(--color-ink-muted);
  font-size: var(--text-xs);
}

.facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0;
  border-top: var(--rule-heavy) solid var(--color-rule-strong);
}

.fact {
  display: grid;
  grid-template-columns: minmax(8rem, 0.42fr) 1fr;
  gap: var(--space-lg);
  padding: var(--space-lg) 0;
  border-bottom: var(--rule-hairline) solid var(--color-rule-strong);
}

.fact:nth-child(odd) {
  padding-right: var(--space-xl);
  border-right: var(--rule-hairline) solid var(--color-rule-strong);
}

.fact:nth-child(even) {
  padding-left: var(--space-xl);
}

.fact dt {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
}

.fact dd {
  margin: 0;
  color: var(--color-ink-muted);
}

.fact code {
  font-family: var(--font-mono);
}

.site-footer {
  padding: var(--space-3xl) 0 var(--space-2xl);
  border-top: var(--rule-heavy) double var(--color-rule-strong);
}

.site-footer__statement {
  max-width: 15ch;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(var(--text-3xl), 7vw, 5.75rem);
  font-weight: 500;
  line-height: 0.94;
  letter-spacing: -0.05em;
}

.site-footer__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  margin-top: var(--space-3xl);
  padding-top: var(--space-sm);
  border-top: var(--rule-hairline) solid var(--color-rule-strong);
  color: var(--color-ink-muted);
  font-size: var(--text-xs);
  line-height: 1;
}

.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
}

.legal-page {
  width: min(100% - 2rem, 46rem);
  margin-inline: auto;
  padding-block: var(--space-4xl) var(--space-5xl);
}

.legal-page h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--text-display-s);
  font-weight: 500;
  line-height: 0.94;
  letter-spacing: -0.05em;
}

.legal-page__updated,
.legal-page__intro {
  color: var(--color-ink-muted);
}

.legal-page__updated {
  margin: var(--space-sm) 0 var(--space-2xl);
  font-size: var(--text-xs);
}

.hero h1,
.section-heading,
.site-footer__statement,
.legal-page h1 {
  min-width: 0;
  overflow-wrap: anywhere;
}

.theme-toggle,
.primary-button,
.example-button,
.hero__links a,
.masthead__nav a,
.site-footer__links a {
  white-space: nowrap;
}

.legal-page__intro {
  font-family: var(--font-display);
  font-size: var(--text-xl);
}

.legal-page h2 {
  margin: var(--space-2xl) 0 var(--space-sm);
  padding-top: var(--space-lg);
  border-top: var(--rule-hairline) solid var(--color-rule);
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 600;
}

.legal-page p,
.legal-page li {
  color: var(--color-ink-muted);
}

.legal-page strong {
  color: var(--color-ink);
}

@media (max-width: 52rem) {
  .hero,
  .workbench,
  .tour__lead {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-block: var(--space-2xl) var(--space-3xl);
  }

  .hero__copy {
    max-width: 42rem;
  }

  .app-capture {
    width: min(85%, 27rem);
  }

  .workbench__input {
    border-right: 0;
    border-bottom: var(--rule-hairline) solid var(--color-rule-strong);
  }

  .tour__copy {
    position: static;
  }

  .journal-capture img,
  .journal-capture figcaption {
    margin-left: 0;
  }

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

  .fact:nth-child(odd),
  .fact:nth-child(even) {
    padding-inline: 0;
    border-right: 0;
  }
}

@media (max-width: 38rem) {
  .page-shell {
    width: min(100% - 1.25rem, 76rem);
  }

  .masthead__edition:not(.masthead__edition--beta) span:last-child,
  .masthead__nav {
    display: none;
  }

  .masthead__links {
    justify-content: flex-end;
  }

  .wordmark {
    text-align: left;
  }

  .hero {
    gap: var(--space-3xl);
  }

  .hero h1 {
    font-size: clamp(3rem, 17vw, 4.35rem);
  }

  .app-capture {
    width: min(92%, 23rem);
  }

  .workbench {
    margin-block: var(--space-4xl);
  }

  .workbench__input,
  .workbench__output {
    padding-inline: var(--space-md);
  }

  .output-heading {
    display: block;
  }

  .engine-label {
    margin-top: var(--space-xs);
    text-align: left;
  }

  .parser-results {
    min-height: 12rem;
  }

  .fact {
    grid-template-columns: 1fr;
    gap: var(--space-xs);
  }

  .site-footer__meta {
    display: block;
  }

  .site-footer__links {
    margin-top: var(--space-lg);
  }
}

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

  .theme-toggle,
  .text-button,
  .primary-button,
  .example-button {
    transition-duration: var(--dur-fast);
  }
}