@font-face {
  font-family: "Space Grotesk";
  src:
    local("Space Grotesk"),
    url("../fonts/space-grotesk-latin.woff2") format("woff2-variations");
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
}

:root {
  color-scheme: light;
  --teal: #175d66;
  --teal-dark: #0f454c;
  --ink: #131718;
  --soft-ink: #2f3638;
  --slate: #637074;
  --white: #fff;
  --mist: #f6fbfc;
  --border: #d8dfe1;
  --pale-teal: #dcefed;
  --measure: 72rem;
  --copy: 67ch;
  --radius: 0.65rem;
  --shadow: 0 1.5rem 4rem rgb(23 93 102 / 9%);
  --font-sans: "Space Grotesk", "Noto Sans JP", "Noto Sans",
    "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
}

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

html {
  scroll-behavior: smooth;
}

html[lang="ja"] {
  word-break: auto-phrase;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: var(--teal);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.22em;
}

a:hover {
  text-decoration-thickness: 0.14em;
}

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

a:focus-visible,
summary:focus-visible {
  outline: 0.2rem solid var(--teal);
  outline-offset: 0.22rem;
  border-radius: 0.15rem;
}

main:focus {
  outline: none;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  text-wrap: balance;
}

.shell {
  width: min(calc(100% - 2.5rem), var(--measure));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.8rem;
  left: 0.8rem;
  padding: 0.65rem 1rem;
  color: var(--white);
  background: var(--teal);
  border-radius: var(--radius);
  transform: translateY(-180%);
}

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

.eyebrow,
.technical-label {
  color: var(--teal);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  line-height: 1.4;
  text-transform: uppercase;
}

.section {
  padding-block: clamp(5.25rem, 10vw, 9rem);
}

.site-header {
  position: relative;
  z-index: 20;
  background: rgb(255 255 255 / 96%);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  min-height: 5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.company-name {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--ink);
  font-size: 1.08rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  text-decoration: none;
  white-space: nowrap;
}

.company-name img {
  width: 2.5rem;
  height: 2.5rem;
  flex: 0 0 auto;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: clamp(1.15rem, 3vw, 2.35rem);
  margin-left: auto;
}

.desktop-nav > a,
.services-menu > summary,
.language-link {
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  color: var(--soft-ink);
  font-size: 0.91rem;
  font-weight: 500;
  text-decoration: none;
}

.desktop-nav > a:hover,
.services-menu > summary:hover,
.language-link:hover {
  color: var(--teal);
}

.services-menu {
  position: relative;
}

.services-menu > summary {
  gap: 0.45rem;
  cursor: pointer;
  list-style: none;
}

.services-menu > summary::-webkit-details-marker,
.mobile-menu > summary::-webkit-details-marker {
  display: none;
}

.services-menu > summary::after {
  width: 0.42rem;
  height: 0.42rem;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  content: "";
  transform: rotate(45deg) translateY(-0.15rem);
  transition: transform 150ms ease;
}

.services-menu[open] > summary::after {
  transform: rotate(225deg) translate(-0.05rem, -0.05rem);
}

.services-menu > .submenu {
  position: absolute;
  top: calc(100% - 0.15rem);
  left: 50%;
  width: 19rem;
  display: none;
  padding: 0.55rem;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transform: translateX(-50%);
}

.services-menu[open] > .submenu,
.services-menu:hover > .submenu,
.services-menu:focus-within > .submenu {
  display: grid;
}

.submenu a {
  display: grid;
  gap: 0.08rem;
  padding: 0.8rem 0.9rem;
  color: var(--ink);
  border-radius: calc(var(--radius) - 0.15rem);
  text-decoration: none;
}

.submenu a:hover,
.submenu a:focus-visible {
  background: var(--mist);
}

.submenu span {
  font-size: 0.93rem;
  font-weight: 600;
}

.submenu small {
  color: var(--slate);
  font-size: 0.76rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.language-link {
  min-width: 4.4rem;
  justify-content: center;
  padding-inline: 0.85rem;
  color: var(--teal);
  border: 1px solid var(--border);
  border-radius: 999px;
}

.mobile-menu {
  display: none;
}

.home-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(6.5rem, 13vw, 11rem);
  background: var(--mist);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(18rem, 0.55fr);
  align-items: center;
  gap: clamp(1.5rem, 4vw, 4rem);
}

.home-hero h1,
.about-hero h1,
.rail-hero h1,
.dictionary-hero h1 {
  margin-bottom: 1.5rem;
  font-size: clamp(2.2rem, 4.5vw, 4rem);
  font-weight: 500;
  letter-spacing: -0.068em;
  line-height: 0.98;
}

.home-hero h1 {
  max-width: none;
  margin-bottom: 1.7rem;
}

html[lang="ja"] .home-hero h1,
html[lang="ja"] .about-hero h1,
html[lang="ja"] .rail-hero h1,
html[lang="ja"] .dictionary-hero h1 {
  letter-spacing: -0.055em;
  line-height: 1.12;
}

.headline-phrase {
  white-space: nowrap;
}

.hero-lead {
  max-width: 45rem;
  margin-bottom: 2rem;
  color: var(--soft-ink);
  font-size: clamp(1.08rem, 2vw, 1.28rem);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.button {
  min-height: 3rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.15rem;
  border: 1px solid var(--teal);
  border-radius: var(--radius);
  font-size: 0.91rem;
  font-weight: 600;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  transition: color 150ms ease, background 150ms ease, transform 150ms ease;
}

.button:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.button-primary {
  color: var(--white);
  background: var(--teal);
}

.button-primary:hover {
  background: var(--teal-dark);
}

.button-secondary {
  color: var(--teal);
  background: transparent;
}

.button-secondary:hover {
  background: var(--pale-teal);
}

.hero-logo {
  width: min(22.5rem, 95%);
  margin-inline: auto;
  transform: translateX(-1rem);
}

@media (min-width: 1100px) {
  .home-hero h1 {
    white-space: nowrap;
  }
}

.product-section,
.research-band {
  background-color: var(--white);
  background-image:
    linear-gradient(rgb(23 93 102 / 3.5%) 1px, transparent 1px),
    linear-gradient(90deg, rgb(23 93 102 / 3%) 1px, transparent 1px);
  background-size: 100% 2rem, 2rem 100%;
}

.product-section,
.consulting-band,
.research-band {
  padding-top: clamp(5.25rem, 7vw, 6rem);
}

.product-section {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}

.product-grid {
  display: grid;
  grid-template-columns: minmax(18rem, 0.68fr) minmax(28rem, 1.32fr);
  align-items: start;
  gap: clamp(3rem, 7vw, 6rem);
}

.home-section-marker {
  position: absolute;
  z-index: 2;
  top: 1.75rem;
  left: max(1.25rem, calc((100vw - var(--measure)) / 2));
  display: flex;
  align-items: center;
  gap: 0.85rem;
  color: var(--teal);
  font-family: var(--font-mono);
  line-height: 1;
}

.home-section-marker span {
  font-size: 1.65rem;
  font-weight: 700;
}

.home-section-marker small {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.product-copy h2,
.band-grid h2,
.about-team h2,
.rail-section h2,
.dictionary-section h2,
.cta-inner h2 {
  margin-bottom: 1.3rem;
  font-size: clamp(1.8rem, 3.5vw, 3rem);
  font-weight: 500;
  letter-spacing: -0.052em;
  line-height: 1.06;
}

html[lang="ja"] .product-copy h2,
html[lang="ja"] .band-grid h2,
html[lang="ja"] .about-team h2,
html[lang="ja"] .rail-section h2,
html[lang="ja"] .dictionary-section h2,
html[lang="ja"] .cta-inner h2 {
  letter-spacing: -0.035em;
  line-height: 1.2;
}

.product-copy-main > p,
.band-grid > div > p,
.research-copy-main > p {
  max-width: var(--copy);
  color: var(--soft-ink);
  font-size: 1.08rem;
}

.text-link {
  display: inline-flex;
  gap: 0.4rem;
  align-items: center;
  margin-top: 0.7rem;
  padding-bottom: 0.08em;
  border-bottom: 0.08em solid currentcolor;
  font-weight: 600;
  line-height: 1.4;
  text-decoration: none;
}

.text-link:hover {
  text-decoration: none;
}

.text-link span {
  transition: transform 150ms ease;
}

.text-link:hover span {
  transform: translateX(0.2rem);
}

.language-example {
  position: relative;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  background: var(--mist);
  border: 1px solid var(--border);
  border-top: 0.25rem solid var(--teal);
  box-shadow: var(--shadow);
}

.language-example .technical-label {
  margin-bottom: clamp(1.8rem, 4vw, 3rem);
}

.product-section .language-example,
.analysis-example-card {
  padding: clamp(2rem, 4vw, 3rem);
  background: var(--mist);
  border: 0;
  border-left: 0.3rem solid var(--teal);
  box-shadow: 0.9rem 0.9rem 0 var(--pale-teal);
}

.product-section .language-example .technical-label,
.analysis-example-card > .technical-label {
  margin-bottom: 2rem;
}

.example-sentence {
  margin-bottom: 1.6rem;
  color: var(--ink);
  font-size: clamp(1.55rem, 4vw, 1.8rem);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.25;
}

.example-focus-line {
  white-space: nowrap;
}

mark {
  color: inherit;
  background: linear-gradient(transparent 58%, var(--pale-teal) 58%);
}

.example-result {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding-block: 1.1rem;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.example-result div {
  display: grid;
}

.example-result strong {
  font-size: 1.05rem;
}

.example-result span {
  color: var(--slate);
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.example-result p {
  margin: 0;
  color: var(--teal);
  font-size: 1.55rem;
  font-weight: 600;
}

.discarded-senses {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 1.2rem;
  padding: 0.75rem 0;
  color: var(--slate);
  border-bottom: 1px solid var(--border);
  font-size: 0.8rem;
  text-decoration: line-through;
  opacity: 0.58;
}

.example-note {
  margin: 1rem 0 0;
  color: var(--slate);
  font-size: 0.84rem;
}

.consulting-band {
  position: relative;
  background: var(--mist);
}

.research-band {
  position: relative;
  border-top: 1px solid var(--border);
}

.research-grid {
  display: grid;
  grid-template-columns: minmax(18rem, 0.7fr) minmax(30rem, 1.3fr);
  align-items: start;
  gap: clamp(3rem, 7vw, 6rem);
}

.research-graphic {
  width: 100%;
  max-width: 35rem;
  margin: 0;
  justify-self: end;
}

.research-graphic img {
  width: 100%;
}

.cta-section {
  color: var(--white);
  background: var(--teal);
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 3rem;
}

.cta-inner h2 {
  max-width: 24ch;
  margin-bottom: 0.8rem;
  font-size: clamp(1.65rem, 3.2vw, 2.55rem);
}

.cta-inner p {
  max-width: 48rem;
  margin-bottom: 0;
  color: rgb(255 255 255 / 85%);
  font-size: 1.05rem;
}

.button-light {
  flex: 0 0 auto;
  color: var(--teal);
  background: var(--white);
  border-color: var(--white);
}

.button-light:hover {
  color: var(--ink);
  background: var(--pale-teal);
}

.page-hero {
  padding-block: clamp(5.5rem, 11vw, 9rem);
  background: var(--mist);
  border-bottom: 1px solid var(--border);
}

.page-hero-grid {
  display: grid;
  grid-template-columns: minmax(11rem, 0.48fr) minmax(0, 1.52fr);
  gap: clamp(2rem, 7vw, 7rem);
}

.page-hero h1 {
  max-width: 14ch;
  margin-bottom: 1.5rem;
  font-size: clamp(2.25rem, 4.9vw, 4.2rem);
  font-weight: 500;
  letter-spacing: -0.065em;
  line-height: 1;
}

html[lang="ja"] .page-hero h1 {
  letter-spacing: -0.045em;
  line-height: 1.15;
}

.page-lead {
  max-width: 45rem;
  margin: 0;
  color: var(--soft-ink);
  font-size: clamp(1.1rem, 2.2vw, 1.35rem);
}

.page-content {
  padding-block: clamp(4.5rem, 9vw, 8rem);
}

.page-content > * {
  max-width: var(--copy);
  margin-inline: auto;
}

.page-content > h2 {
  margin-top: clamp(4.5rem, 9vw, 7rem);
  margin-bottom: 1.35rem;
  color: var(--ink);
  font-size: clamp(2.1rem, 4.5vw, 3.45rem);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 1.1;
}

html[lang="ja"] .page-content > h2 {
  letter-spacing: -0.03em;
  line-height: 1.25;
}

.page-content > h2:first-child {
  margin-top: 0;
}

.page-content > h3 {
  margin-top: 2.5rem;
  margin-bottom: 0.65rem;
  font-size: 1.5rem;
  font-weight: 600;
}

.page-content > p,
.page-content > ol,
.page-content > ul {
  color: var(--soft-ink);
  font-size: 1.04rem;
}

.page-content > p + p {
  margin-top: 1.25rem;
}

.page-content > ul {
  max-width: 60rem;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  padding: 1px;
  list-style: none;
  background: var(--border);
}

.page-content > ul li {
  padding: 1.25rem;
  background: var(--white);
}

.page-content > ul li::before {
  display: inline-block;
  margin-right: 0.55rem;
  color: var(--teal);
  content: "—";
}

.page-content > ol {
  padding-left: 1.35rem;
}

.page-content > ol li {
  padding-left: 0.35rem;
  margin-block: 1rem;
}

.page-content > .language-example {
  max-width: 54rem;
  margin-block: clamp(3rem, 6vw, 5rem);
}

.page-content a {
  font-weight: 600;
}

.about-hero,
.dictionary-hero {
  padding-block: clamp(6rem, 12vw, 10rem);
  background: var(--mist);
  border-bottom: 1px solid var(--border);
  text-align: center;
}

.about-hero-inner {
  max-width: 62rem;
}

.about-hero .page-lead {
  max-width: 54rem;
  margin-inline: auto;
}

.about-team {
  background: var(--white);
}

.about-team h2 {
  margin-bottom: clamp(4rem, 8vw, 6rem);
  text-align: center;
}

.team-grid {
  max-width: 48rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(4rem, 8vw, 7rem) clamp(2.5rem, 6vw, 5rem);
  margin-inline: auto;
}

.team-member {
  min-width: 0;
  text-align: center;
}

.team-member-founder {
  width: min(100%, 24rem);
  grid-column: 1 / -1;
  justify-self: center;
}

.team-portrait {
  width: clamp(8rem, 16vw, 11rem);
  aspect-ratio: 1;
  overflow: hidden;
  margin: 0 auto 1.5rem;
  background: var(--white);
  border: 3px solid var(--teal);
  border-radius: 50%;
}

.team-portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.team-member h3 {
  margin-bottom: 0.35rem;
  font-size: 1.35rem;
  line-height: 1.25;
}

.team-member h3 a {
  color: inherit;
  text-decoration: none;
}

.team-member h3 a:hover,
.team-member h3 a:focus-visible {
  color: var(--teal);
  text-decoration: underline;
}

.team-role {
  color: var(--teal);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.team-bio {
  max-width: 24rem;
  margin: 1rem auto 0;
  color: var(--soft-ink);
  font-size: 0.95rem;
}

.about-closing-band {
  height: clamp(2.75rem, 5vw, 4.5rem);
  background: var(--teal);
}

.dictionary-hero-inner {
  max-width: 64rem;
}

.dictionary-hero h1 {
  max-width: 19ch;
  margin-inline: auto;
}

.dictionary-hero .page-lead {
  max-width: 53rem;
  margin-inline: auto;
}

.dictionary-section {
  position: relative;
}

.dictionary-analysis {
  background: var(--white);
}

.dictionary-data {
  background: var(--mist);
  border-block: 1px solid var(--border);
}

.dictionary-section-label {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: clamp(2.5rem, 5vw, 4.25rem);
  color: var(--teal);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  line-height: 1;
  text-transform: uppercase;
}

.dictionary-section-label span {
  font-size: 1.65rem;
  letter-spacing: 0;
}

.dictionary-section-grid {
  display: grid;
  grid-template-columns: minmax(18rem, 0.72fr) minmax(28rem, 1.28fr);
  align-items: start;
  gap: clamp(3rem, 7vw, 6rem);
}

.dictionary-section-grid-reversed {
  grid-template-columns: minmax(28rem, 1.28fr) minmax(18rem, 0.72fr);
}

.dictionary-section-grid-reversed .dictionary-copy {
  grid-column: 2;
}

.dictionary-section-grid-reversed .dictionary-card-stack {
  grid-column: 1;
  grid-row: 1;
}

.dictionary-copy > p,
.dictionary-pipeline-copy > p {
  color: var(--soft-ink);
  font-size: 1.08rem;
}

.dictionary-copy > p + p {
  margin-top: 1.25rem;
}

.dictionary-card-stack {
  display: grid;
  gap: 1.5rem;
}

.analysis-example + .analysis-example {
  margin-top: 1.6rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--border);
}

.analysis-example-sentence {
  margin-bottom: 1.1rem;
  color: var(--ink);
  font-size: clamp(1.25rem, 2.6vw, 1.55rem);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.3;
}

.analysis-example-results {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr));
  border-top: 1px solid var(--border);
}

.analysis-example-result {
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 0.9rem;
}

.analysis-example-result + .analysis-example-result {
  margin-left: 1rem;
  padding-left: 1rem;
  border-left: 1px solid var(--border);
}

.analysis-example-result > div {
  min-width: 0;
  display: grid;
}

.analysis-example-result strong {
  font-size: 0.95rem;
}

.analysis-example-result span {
  color: var(--slate);
  font-family: var(--font-mono);
  font-size: 0.68rem;
}

.analysis-example-result p {
  margin: 0;
  color: var(--teal);
  font-size: 1.25rem;
  font-weight: 600;
  white-space: nowrap;
}

.lexical-entry-card {
  padding: clamp(2rem, 4vw, 3rem);
  background: var(--white);
  border: 1px solid var(--border);
  border-top: 0.25rem solid var(--teal);
  box-shadow: var(--shadow);
}

.lexical-entry-card .technical-label {
  margin-bottom: 2rem;
}

.lexical-entry-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}

.lexical-entry-head h3 {
  margin-bottom: 0;
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 1;
}

.lexical-entry-head > span,
.lexical-entry-forms dt,
.lexical-senses > li > span,
.pipeline-step-tag {
  color: var(--slate);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  line-height: 1.4;
  text-transform: uppercase;
}

.lexical-entry-forms {
  display: grid;
  grid-template-columns: 5rem minmax(0, 1fr);
  gap: 1rem;
  margin: 0;
  padding-block: 1rem;
  border-bottom: 1px solid var(--border);
}

.lexical-entry-forms dd {
  margin: 0;
  color: var(--soft-ink);
  font-size: 0.88rem;
}

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

.lexical-senses li {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  gap: 0.8rem;
  padding-block: 1.25rem;
}

.lexical-senses li + li {
  border-top: 1px solid var(--border);
}

.lexical-senses > li > span {
  padding-top: 0.12rem;
  color: var(--teal);
}

.lexical-sense-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.8rem;
  margin-bottom: 0.35rem;
}

.lexical-sense-label {
  flex: none;
  padding: 0.18rem 0.45rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--mist);
  color: var(--slate);
  font-family: var(--font-mono);
  font-size: 0.61rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  line-height: 1.2;
  text-transform: uppercase;
}

.lexical-senses p {
  margin-bottom: 0.35rem;
  color: var(--soft-ink);
  font-size: 0.95rem;
}

.lexical-sense-heading p {
  margin-bottom: 0;
}

.lexical-senses strong {
  color: var(--teal);
  font-size: 1.08rem;
}

.dictionary-pipeline-copy {
  max-width: 49rem;
}

.pipeline-flow {
  display: flex;
  align-items: stretch;
  margin-top: clamp(3rem, 6vw, 5rem);
}

.pipeline-step {
  position: relative;
  min-width: 0;
  min-height: 10.5rem;
  display: flex;
  flex: 1 1 0;
  flex-direction: column;
  justify-content: center;
  padding: 2.2rem 1.1rem 1.3rem;
  border: 1px solid var(--border);
  text-align: center;
}

.pipeline-step-endpoint {
  flex-grow: 0.78;
  background: var(--mist);
}

.pipeline-step-replaceable {
  background: var(--white);
  border-color: var(--teal);
}

.pipeline-step-rslv {
  color: var(--white);
  background: var(--teal);
  border-color: var(--teal);
}

.pipeline-step strong {
  font-size: 1rem;
  line-height: 1.25;
}

.pipeline-step small {
  margin-top: 0.55rem;
  color: var(--slate);
  font-size: 0.75rem;
  line-height: 1.4;
}

.pipeline-step-rslv small {
  color: rgb(255 255 255 / 78%);
}

.pipeline-step-tag {
  position: absolute;
  top: 0.75rem;
  left: 50%;
  color: var(--teal);
  transform: translateX(-50%);
  white-space: nowrap;
}

.pipeline-step-rslv .pipeline-step-tag {
  color: rgb(255 255 255 / 75%);
}

.pipeline-arrow {
  display: grid;
  flex: 0 0 clamp(1.5rem, 3vw, 2.5rem);
  place-items: center;
  color: var(--teal);
  font-size: 1.3rem;
}

.rail-hero {
  padding-block: clamp(5.5rem, 10vw, 9rem);
  background: var(--mist);
  border-bottom: 1px solid var(--border);
}

.rail-hero-copy {
  max-width: 58rem;
}

.rail-facts {
  display: grid;
  grid-template-columns: 0.9fr 0.95fr 1.15fr;
  margin: 4rem 0 0;
  border-block: 1px solid var(--border);
}

.rail-facts div {
  padding: 1.25rem 1.5rem 1.25rem 0;
}

.rail-facts div + div {
  padding-left: 1.5rem;
  border-left: 1px solid var(--border);
}

.rail-facts dt,
.page-rail > p,
.rail-section-label {
  color: var(--teal);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  line-height: 1.4;
  text-transform: uppercase;
}

.rail-facts dt {
  margin-bottom: 0.3rem;
}

.rail-facts dd {
  margin: 0;
  font-size: 1rem;
  font-weight: 500;
}

.rail-main {
  padding-block: clamp(5rem, 10vw, 9rem);
}

.rail-layout {
  display: grid;
  grid-template-columns: 13rem minmax(0, 1fr);
  gap: clamp(4rem, 10vw, 10rem);
}

.rail-layout-simple {
  display: block;
}

.rail-layout-simple .rail-content {
  max-width: 58rem;
  margin-inline: auto;
}

.page-rail {
  position: sticky;
  top: 2rem;
  align-self: start;
}

.page-rail > p {
  margin-bottom: 1.2rem;
  color: var(--slate);
}

.page-rail a {
  display: flex;
  gap: 0.7rem;
  padding-block: 0.7rem;
  color: var(--soft-ink);
  border-top: 1px solid var(--border);
  font-size: 0.88rem;
  text-decoration: none;
}

.page-rail a:last-child {
  border-bottom: 1px solid var(--border);
}

.page-rail a:hover {
  color: var(--teal);
}

.page-rail a span {
  color: var(--teal);
  font-family: var(--font-mono);
}

.rail-content {
  max-width: 50rem;
}

.rail-section {
  padding-bottom: clamp(5rem, 9vw, 8rem);
  scroll-margin-top: 2rem;
}

.rail-section:last-child {
  padding-bottom: 0;
}

.rail-section-label {
  margin-bottom: 1rem;
}

.rail-section > p:not(.rail-section-label) {
  color: var(--soft-ink);
  font-size: 1.08rem;
}

.rail-section > p + p {
  margin-top: 1.3rem;
}

.rail-card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  margin-top: 2.5rem;
  padding: 1px;
  background: var(--border);
}

.rail-card {
  min-height: 13rem;
  padding: 1.5rem;
  background: var(--white);
}

.rail-card > span {
  color: var(--teal);
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.rail-card h3 {
  margin: 1.7rem 0 0.6rem;
  font-size: 1.15rem;
  line-height: 1.35;
}

.rail-card p {
  margin-bottom: 0;
  color: var(--soft-ink);
  font-size: 0.92rem;
}

.project-card-list {
  display: grid;
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.project-card {
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 1rem 3rem rgb(23 93 102 / 5%);
}

.project-card-copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: clamp(1.5rem, 4vw, 2.25rem);
}

.project-card-tag {
  margin-bottom: 1rem;
  color: var(--teal);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  line-height: 1.4;
  text-transform: uppercase;
}

.project-card h3 {
  margin-bottom: 0.8rem;
  font-size: clamp(1.25rem, 2.4vw, 1.65rem);
  line-height: 1.2;
}

.project-card-copy > p:not(.project-card-tag) {
  margin-bottom: 1.25rem;
  color: var(--soft-ink);
  font-size: 0.95rem;
}

.project-card-copy > a {
  color: var(--teal);
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
}

.project-card-copy > a:hover {
  text-decoration: underline;
}

.publication-list {
  margin: 2.75rem 0 0;
  padding: 0;
  border-top: 1px solid var(--border);
  list-style: none;
}

.publication-list li {
  border-bottom: 1px solid var(--border);
}

.publication-list a {
  display: grid;
  grid-template-columns: 7.5rem minmax(0, 1fr) auto;
  gap: 1.5rem;
  align-items: center;
  padding: 1.4rem 1rem;
  color: var(--ink);
  text-decoration: none;
  transition: color 160ms ease, background 160ms ease;
}

.publication-list a:hover {
  color: var(--teal);
  background: rgb(23 93 102 / 4%);
}

.publication-meta {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  color: var(--teal);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.35;
  text-transform: uppercase;
}

.publication-meta small {
  color: var(--slate);
  font: inherit;
  font-size: 0.62rem;
  letter-spacing: 0.04em;
}

.publication-title {
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.4;
}

.publication-arrow {
  color: var(--teal);
  font-size: 1rem;
}

.rail-figure {
  margin: 2.5rem 0 0;
  padding: clamp(1.25rem, 4vw, 2rem);
  background: var(--mist);
  border: 1px solid var(--border);
}

.rail-figure img {
  width: 100%;
}

.site-footer {
  color: var(--soft-ink);
  background: var(--mist);
  border-top: 1px solid var(--border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 3rem;
  padding-block: 4rem;
}

.footer-grid > div {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.company-address {
  color: var(--soft-ink);
  font-size: 0.85rem;
  font-style: normal;
  line-height: 1.65;
}

.footer-heading {
  margin-bottom: 0.7rem;
  color: var(--slate);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.footer-grid a {
  min-height: 2.25rem;
  display: inline-flex;
  align-items: center;
  color: var(--soft-ink);
  font-size: 0.9rem;
  text-decoration: none;
}

.footer-grid a:hover,
.footer-grid a:focus-visible {
  color: var(--teal);
  text-decoration: underline;
}

.footer-grid p {
  font-size: 0.9rem;
}

.footer-bottom {
  padding-block: 1.25rem;
  border-top: 1px solid var(--border);
}

.footer-bottom p {
  margin: 0;
  color: var(--slate);
  font-size: 0.78rem;
}

.error-page {
  padding-block: clamp(5rem, 12vw, 10rem);
}

.error-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 8vw, 8rem);
}

.error-grid > div + div {
  padding-left: clamp(3rem, 8vw, 8rem);
  border-left: 1px solid var(--border);
}

.error-grid h1,
.error-grid h2 {
  margin-bottom: 1.2rem;
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 500;
  letter-spacing: -0.05em;
  line-height: 1.1;
}

.error-grid p:not(.eyebrow) {
  margin-bottom: 2rem;
  color: var(--soft-ink);
}

@media (max-width: 800px) {
  .desktop-nav {
    display: none;
  }

  .mobile-menu {
    position: relative;
    display: block;
  }

  .mobile-menu > summary {
    min-width: 3rem;
    min-height: 3rem;
    display: grid;
    place-items: center;
    color: var(--ink);
    cursor: pointer;
    list-style: none;
  }

  .mobile-menu > summary span {
    width: 1.35rem;
    height: 0.9rem;
    overflow: hidden;
    color: transparent;
    border-top: 2px solid var(--ink);
    border-bottom: 2px solid var(--ink);
  }

  .mobile-menu > summary span::after {
    width: 1.35rem;
    height: 2px;
    display: block;
    margin-top: 0.3rem;
    background: var(--ink);
    content: "";
  }

  .mobile-menu[open] > summary span {
    height: 1.35rem;
    border: 0;
  }

  .mobile-menu[open] > summary span::before,
  .mobile-menu[open] > summary span::after {
    position: absolute;
    top: 1.45rem;
    right: 0.82rem;
    width: 1.35rem;
    height: 2px;
    margin: 0;
    background: var(--ink);
    content: "";
    transform: rotate(45deg);
  }

  .mobile-menu[open] > summary span::after {
    transform: rotate(-45deg);
  }

  .mobile-menu nav {
    position: absolute;
    top: calc(100% + 0.75rem);
    right: 0;
    width: min(20rem, calc(100vw - 2rem));
    display: grid;
    padding: 0.6rem;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
  }

  .mobile-menu nav a {
    min-height: 2.8rem;
    display: flex;
    align-items: center;
    padding-inline: 0.8rem;
    color: var(--ink);
    text-decoration: none;
  }

  .mobile-menu nav a:hover {
    background: var(--mist);
  }

  .mobile-group-label {
    padding: 1rem 0.8rem 0.3rem;
    color: var(--slate);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.09em;
    text-transform: uppercase;
  }

  .hero-grid,
  .product-grid,
  .research-grid,
  .page-hero-grid,
  .dictionary-section-grid,
  .rail-facts,
  .rail-layout,
  .rail-card-grid {
    grid-template-columns: 1fr;
  }

  .dictionary-section-grid-reversed .dictionary-copy,
  .dictionary-section-grid-reversed .dictionary-card-stack {
    grid-column: auto;
    grid-row: auto;
  }

  .dictionary-card-stack {
    margin-top: 0.5rem;
  }

  .pipeline-flow {
    max-width: 30rem;
    align-items: stretch;
    flex-direction: column;
    margin-inline: auto;
  }

  .pipeline-step,
  .pipeline-step-endpoint {
    min-height: 8.5rem;
    flex-basis: auto;
  }

  .pipeline-arrow {
    min-height: 2.4rem;
    flex-basis: auto;
    transform: rotate(90deg);
  }

  .rail-facts div + div {
    padding-left: 0;
    border-top: 1px solid var(--border);
    border-left: 0;
  }

  .publication-list a {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 0.7rem 1rem;
    padding-inline: 0;
  }

  .publication-meta {
    grid-column: 1;
    flex-direction: row;
    gap: 0.65rem;
  }

  .publication-title {
    grid-column: 1;
  }

  .publication-arrow {
    grid-column: 2;
    grid-row: 1 / span 2;
  }

  .team-grid {
    grid-template-columns: 1fr;
    gap: 4rem;
  }

  .team-member-founder {
    width: auto;
    grid-column: auto;
  }

  .page-rail {
    position: static;
  }

  .research-graphic {
    max-width: 35rem;
    justify-self: center;
  }

  .hero-logo {
    width: min(13.5rem, 54vw);
    margin: 0 auto;
    transform: none;
  }

  .product-grid {
    gap: 3rem;
  }

  .product-copy,
  .research-copy {
    display: contents;
  }

  .product-grid {
    grid-template-areas:
      "product-copy"
      "product-visual"
      "product-link";
    gap: 0;
  }

  .product-copy-main {
    grid-area: product-copy;
  }

  .product-grid > .language-example {
    grid-area: product-visual;
    margin-top: 3rem;
  }

  .product-copy > .text-link {
    grid-area: product-link;
    justify-self: start;
    margin-top: 2rem;
  }

  .research-grid {
    grid-template-areas:
      "research-copy"
      "research-visual"
      "research-link";
    gap: 0;
  }

  .research-copy-main {
    grid-area: research-copy;
  }

  .research-graphic {
    grid-area: research-visual;
    margin-top: 3rem;
  }

  .research-copy > .text-link {
    grid-area: research-link;
    justify-self: start;
    margin-top: 2rem;
  }

  .home-section-marker {
    top: 1.4rem;
  }

  .product-section .language-example .technical-label {
    margin-bottom: 1.8rem;
  }

  .example-focus-line {
    white-space: normal;
  }

  .cta-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .page-hero {
    padding-block: 5rem;
  }

  .page-content > ul {
    grid-template-columns: 1fr;
  }

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

  .footer-grid > div:first-child {
    grid-column: 1 / -1;
  }

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

  .error-grid > div + div {
    padding-top: 3rem;
    padding-left: 0;
    border-top: 1px solid var(--border);
    border-left: 0;
  }
}

@media (max-width: 480px) {
  .shell {
    width: min(calc(100% - 1.5rem), var(--measure));
  }

  .header-inner {
    min-height: 4.5rem;
    gap: 0.5rem;
  }

  .header-actions {
    gap: 0.25rem;
  }

  .company-name {
    gap: 0.3rem;
  }

  .company-name img {
    width: 2.25rem;
    height: 2.25rem;
  }

  .language-link {
    min-width: 0;
    padding-inline: 0.7rem;
    font-size: 0.8rem;
  }

  .home-hero {
    padding-block: 5.25rem;
  }

  .home-hero h1,
  .about-hero h1,
  .rail-hero h1,
  .dictionary-hero h1 {
    font-size: clamp(2.2rem, 8.5vw, 2.75rem);
  }

  .button-row {
    align-items: stretch;
    flex-direction: column;
  }

  .button-row .button {
    width: 100%;
  }

  .language-example {
    padding: 1.25rem;
  }

  .product-section .language-example {
    padding: 1.5rem;
  }

  .analysis-example-card,
  .lexical-entry-card {
    padding: 1.5rem;
  }

  .analysis-example-results {
    grid-template-columns: 1fr;
  }

  .analysis-example-result + .analysis-example-result {
    margin: 0.8rem 0 0;
    padding: 0.8rem 0 0;
    border-top: 1px solid var(--border);
    border-left: 0;
  }

  .lexical-entry-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.55rem;
  }

  .lexical-entry-forms {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }

  .example-result {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.65rem;
  }

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

  .footer-grid > div:first-child {
    grid-column: auto;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}