:root {
  --paper: #f7f8f3;
  --paper-soft: #edf1e8;
  --ink: #17352f;
  --muted: #61726c;
  --line: #d7ded3;
  --lab: #2f7f70;
  --lab-soft: #e2efeb;
  --ember: #9b7c2f;
  --ember-soft: #f1ead6;
  --steel: #2f7f70;
  --olive: #6f7a3d;
  --olive-soft: #e8edda;
  --white: #ffffff;
  --accent: var(--steel);
  --accent-soft: var(--paper-soft);
  --accent-ink: var(--white);
  --line-soft: var(--line);
  --shadow: 0 18px 44px rgba(23, 53, 47, 0.08);
  --radius: 8px;
  --page: min(70vw, 1680px);
  --max: var(--page);
  --section: clamp(4.5rem, 8vw, 8rem);
  --font-body: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", "Helvetica Neue", Arial, sans-serif;
  --font-title: Baskerville, "Baskerville Old Face", "Hoefler Text", Georgia, "Times New Roman", serif;
  --font-mono: "SF Mono", ui-monospace, Menlo, Monaco, Consolas, monospace;
  color-scheme: light;
  font-family: var(--font-body);
  text-rendering: optimizeLegibility;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(180deg, rgba(226, 239, 235, 0.42), rgba(247, 248, 243, 0) 420px),
    var(--paper);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body[data-theme] {
  --accent: var(--steel);
  --accent-soft: var(--paper-soft);
}

a {
  color: inherit;
  text-decoration-color: color-mix(in srgb, var(--accent) 55%, transparent);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

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

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

:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 55%, white);
  outline-offset: 4px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(18px) saturate(1.05);
}

.site-header::after {
  content: "";
  position: absolute;
  right: 8px;
  bottom: 0;
  left: 8px;
  height: 1px;
  background: color-mix(in srgb, var(--ink) 16%, transparent);
}

.nav-shell {
  width: var(--page);
  margin: 0 auto;
  min-height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: clamp(1.5rem, 4vw, 4rem);
}

.brand {
  position: relative;
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  padding: 0.2rem clamp(1rem, 2vw, 2rem) 0.2rem 0;
  color: var(--ink);
  line-height: 1;
  text-decoration: none;
}

.brand-logo {
  width: clamp(6.2rem, 8vw, 7.6rem);
  height: auto;
}

.nav-menu {
  display: flex;
  align-items: center;
  align-self: stretch;
  justify-content: flex-end;
  gap: clamp(0.35rem, 1.1vw, 1rem);
}

.nav-menu a {
  position: relative;
  min-height: 84px;
  display: inline-flex;
  align-items: center;
  padding: 0 clamp(0.4rem, 0.95vw, 0.9rem);
  color: color-mix(in srgb, var(--ink) 66%, var(--paper));
  font-size: clamp(0.92rem, 1vw, 1.02rem);
  font-weight: 500;
  letter-spacing: 0.01em;
  text-decoration: none;
  white-space: nowrap;
  transition: color 160ms ease;
}

.nav-menu a::after {
  content: "";
  position: absolute;
  right: clamp(0.4rem, 0.95vw, 0.9rem);
  bottom: -1px;
  left: clamp(0.4rem, 0.95vw, 0.9rem);
  height: 2px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 180ms ease;
}

.nav-menu a:hover,
.nav-menu a[aria-current="page"] {
  color: var(--ink);
}

.nav-menu a:hover::after,
.nav-menu a[aria-current="page"]::after {
  transform: scaleX(1);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink);
  background: transparent;
}

.menu-toggle span,
.menu-toggle::before,
.menu-toggle::after {
  content: "";
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: currentColor;
}

.section {
  width: min(var(--page), calc(100% - 2rem));
  margin: 0 auto;
  padding: var(--section) 0;
}

.hero {
  width: min(var(--page), calc(100% - 2rem));
  min-height: calc(100svh - 72px);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.84fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 5rem);
  padding: clamp(3.5rem, 8vw, 7rem) 0;
}

.hero-copy {
  max-width: 720px;
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 650;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

h1,
h2,
h3,
.display {
  margin: 0;
  line-height: 1.02;
  letter-spacing: -0.018em;
  font-family: var(--font-title);
  font-weight: 400;
}

h1 {
  max-width: 14ch;
  font-size: clamp(3.4rem, 8.6vw, 8rem);
}

h2 {
  max-width: 16ch;
  font-size: clamp(2.35rem, 5.4vw, 5rem);
}

h3 {
  font-size: clamp(1.35rem, 2.3vw, 1.95rem);
}

.lead {
  max-width: 64ch;
  margin: 1.5rem 0 0;
  color: var(--muted);
  font-size: clamp(1.08rem, 2vw, 1.34rem);
  line-height: 1.5;
}

.hero-actions,
.button-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
}

.grid.single-project {
  grid-template-columns: minmax(0, 1fr);
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.78rem 1rem;
  border: 1px solid var(--ink);
  border-radius: 10px;
  color: var(--white);
  background: var(--ink);
  font-weight: 650;
  text-decoration: none;
}

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

.button.secondary {
  color: var(--ink);
  background: color-mix(in srgb, var(--white) 68%, transparent);
}

.button.secondary:hover {
  color: var(--ink);
  background: var(--accent-soft);
}

.signal-board {
  position: relative;
  min-height: 520px;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(23, 53, 47, 0.06) 1px, transparent 1px),
    linear-gradient(0deg, rgba(23, 53, 47, 0.06) 1px, transparent 1px),
    var(--white);
  background-size: 44px 44px;
  box-shadow: var(--shadow);
}

.signal-board::before {
  content: "";
  position: absolute;
  inset: 10%;
  border: 1px solid color-mix(in srgb, var(--accent) 36%, transparent);
  border-radius: 18px;
  transform: rotate(-3deg);
}

.signal-board::after {
  content: "";
  position: absolute;
  right: 12%;
  bottom: 14%;
  width: 42%;
  height: 1px;
  background: color-mix(in srgb, var(--accent) 44%, transparent);
  transform: rotate(-18deg);
  opacity: 0.8;
}

.signal-card {
  position: absolute;
  left: 8%;
  right: 8%;
  top: 10%;
  z-index: 2;
  padding: 1rem;
  border: 1px solid color-mix(in srgb, var(--ink) 12%, transparent);
  border-radius: 12px;
  background: color-mix(in srgb, var(--paper) 84%, white);
}

.signal-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 650;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.signal-meter {
  --signal: 67%;
  position: relative;
  height: 12px;
  margin-top: 1rem;
  border-radius: 999px;
  overflow: hidden;
  background: var(--paper-soft);
}

.signal-meter::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: var(--signal);
  border-radius: inherit;
  background: var(--accent);
  transition: width 420ms ease;
}

.signal-chip {
  position: absolute;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0.42rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink);
  background: color-mix(in srgb, var(--white) 88%, transparent);
  box-shadow: 0 10px 28px rgba(23, 53, 47, 0.08);
  font-size: 0.78rem;
  font-weight: 650;
}

.signal-chip.one {
  left: 12%;
  bottom: 24%;
}

.signal-chip.two {
  right: 9%;
  top: 42%;
}

.signal-chip.three {
  left: 30%;
  bottom: 10%;
}

.molecule-hero-screens {
  position: relative;
  min-height: clamp(560px, 48vw, 780px);
  isolation: isolate;
}

.molecule-hero-screens::before {
  content: "";
  position: absolute;
  inset: 6% -4% 6% 8%;
  z-index: -1;
  border: 1px solid color-mix(in srgb, var(--line) 76%, transparent);
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--line) 58%, transparent) 1px, transparent 1px),
    linear-gradient(0deg, color-mix(in srgb, var(--line) 58%, transparent) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.5;
}

.screen-frame,
.screen-card {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--white);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.screen-frame img,
.screen-card img {
  width: 100%;
  height: auto;
  background: var(--paper-soft);
}

.screen-frame figcaption,
.screen-card figcaption {
  border-top: 1px solid var(--line-soft, var(--line));
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1;
  text-transform: uppercase;
}

.screen-frame figcaption {
  padding: 0.75rem 0.9rem;
}

.screen-tablet-landscape {
  position: absolute;
  top: 7%;
  right: -4%;
  width: min(92%, 980px);
  border-radius: 16px;
  transform: rotate(0.8deg);
}

.screen-phone {
  position: absolute;
  left: 0;
  bottom: 2%;
  width: min(34%, 360px);
  border-radius: 22px;
  transform: rotate(-2.4deg);
}

.screen-phone img {
  border-radius: 18px 18px 0 0;
}

.app-hero {
  grid-template-columns: minmax(320px, 0.58fr) minmax(0, 1fr);
  gap: clamp(2.5rem, 5vw, 6rem);
}

.app-screens-section {
  padding-top: clamp(4rem, 8vw, 8rem);
}

.screen-story {
  display: grid;
  gap: clamp(5rem, 9vw, 10rem);
}

.screen-feature {
  display: grid;
  grid-template-columns: minmax(260px, 0.42fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 5.5rem);
  align-items: center;
}

.screen-feature.tools {
  grid-template-columns: minmax(0, 0.78fr) minmax(260px, 0.42fr);
}

.screen-feature.notebook {
  align-items: start;
}

.screen-copy {
  max-width: 38rem;
}

.screen-copy h3 {
  max-width: 16ch;
  font-size: clamp(1.85rem, 3vw, 3.35rem);
}

.screen-copy p:not(.kicker) {
  color: var(--muted);
  font-size: clamp(1rem, 1.2vw, 1.18rem);
}

.screen-cluster {
  position: relative;
  min-height: 640px;
  isolation: isolate;
}

.screen-cluster::before {
  content: "";
  position: absolute;
  inset: 10% 7% 13% 0;
  z-index: -1;
  border: 1px solid color-mix(in srgb, var(--line) 78%, transparent);
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--line) 52%, transparent) 1px, transparent 1px),
    linear-gradient(0deg, color-mix(in srgb, var(--line) 52%, transparent) 1px, transparent 1px);
  background-size: 42px 42px;
}

.screen-card {
  border-radius: 14px;
}

.screen-card figcaption {
  padding: 0.8rem 0.9rem;
}

.phone-card {
  width: min(36%, 380px);
  border-radius: 24px;
}

.phone-card img {
  border-radius: 20px 20px 0 0;
}

.tablet-card {
  border-radius: 16px;
}

.phone-pair .front {
  position: absolute;
  left: 8%;
  top: 0;
  z-index: 2;
  transform: rotate(-2.4deg);
}

.phone-pair .back {
  position: absolute;
  right: 18%;
  bottom: 2%;
  z-index: 1;
  transform: rotate(2.1deg);
}

.screen-feature.tools .tablet-card {
  width: min(76%, 760px);
  margin-left: 8%;
  transform: rotate(-1.2deg);
}

.mixed {
  min-height: 860px;
}

.mixed .notes {
  position: absolute;
  left: 0;
  top: 5%;
  width: min(48%, 620px);
  transform: rotate(-1.1deg);
}

.mixed .theory {
  position: absolute;
  left: 41%;
  top: 0;
  z-index: 2;
  width: min(28%, 320px);
  transform: rotate(2deg);
}

.mixed .bulletin {
  position: absolute;
  right: 0;
  bottom: 0;
  width: min(48%, 620px);
  transform: rotate(1.2deg);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(280px, 0.62fr);
  align-items: end;
  gap: 2rem;
  margin-bottom: clamp(2rem, 5vw, 4rem);
}

.section-heading p {
  margin: 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.grid {
  display: grid;
  gap: 1rem;
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.panel,
.project-card,
.text-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--white) 82%, var(--paper));
}

.panel,
.text-card {
  padding: clamp(1.1rem, 2.5vw, 1.6rem);
}

.project-card {
  min-height: 360px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  text-decoration: none;
  box-shadow: 0 1px 0 rgba(23, 53, 47, 0.04);
}

.project-card:hover {
  color: inherit;
  transform: translateY(-2px);
}

.project-visual {
  min-height: 170px;
  display: grid;
  place-items: center;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent) 18%, white), transparent),
    var(--accent-soft);
}

.project-visual span {
  width: min(72%, 280px);
  aspect-ratio: 16 / 9;
  border: 1px solid color-mix(in srgb, var(--accent) 50%, transparent);
  border-radius: 7px;
  background:
    linear-gradient(90deg, rgba(255,255,255,0.72), transparent 55%),
    repeating-linear-gradient(90deg, color-mix(in srgb, var(--accent) 42%, white), color-mix(in srgb, var(--accent) 42%, white) 8px, transparent 8px, transparent 18px);
}

.project-body {
  padding: 1.25rem;
}

.project-body p,
.text-card p,
.panel p {
  color: var(--muted);
}

.project-meta,
.kicker {
  margin: 0 0 0.7rem;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 650;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.stack-list,
.plain-list {
  margin: 1.2rem 0 0;
  padding: 0;
  list-style: none;
}

.stack-list li,
.plain-list li {
  padding: 0.82rem 0;
  border-top: 1px solid var(--line);
}

.callout {
  border-block: 1px solid var(--line);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent-soft) 80%, white), var(--paper-soft));
}

.callout .section {
  padding-block: clamp(2.8rem, 6vw, 4.8rem);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.74fr) minmax(280px, 0.52fr);
  gap: clamp(1.5rem, 5vw, 4rem);
  align-items: start;
}

.legal-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: clamp(1.5rem, 5vw, 4rem);
  min-width: 0;
}

.legal-nav {
  position: sticky;
  top: 96px;
  align-self: start;
  min-width: 0;
  width: 100%;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: color-mix(in srgb, var(--white) 82%, var(--paper));
}

.legal-nav a {
  display: block;
  padding: 0.48rem 0;
  color: var(--muted);
  font-weight: 500;
  text-decoration: none;
}

.legal-copy {
  max-width: 78ch;
  min-width: 0;
}

.legal-page .section-heading {
  align-items: start;
}

.legal-page h1 {
  max-width: 12ch;
  font-size: clamp(3rem, 7vw, 6.2rem);
}

.legal-updated {
  margin-top: 0.9rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.legal-lang-switch {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.legal-lang-switch a {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  padding: 0.34rem 0.74rem;
  border: 1px solid var(--line);
  border-radius: 9px;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 500;
  text-decoration: none;
}

.legal-lang-switch a[aria-current="page"] {
  color: var(--accent-ink);
  background: var(--accent);
  border-color: var(--accent);
}

.legal-card {
  width: 100%;
  min-width: 0;
  padding: clamp(1.1rem, 2.5vw, 1.5rem);
  border: 1px solid var(--line-soft, var(--line));
  border-radius: 12px;
  background: color-mix(in srgb, var(--white) 88%, var(--paper));
  box-shadow: var(--shadow);
  overflow-x: auto;
}

.legal-card + .legal-card {
  margin-top: 1rem;
}

.legal-copy h2 {
  max-width: none;
  margin: 0 0 1rem;
  font-size: clamp(1.45rem, 2.2vw, 1.85rem);
  font-weight: 400;
  line-height: 1.2;
  color: var(--ink);
}

.legal-copy h2:first-child {
  margin-top: 0;
}

.legal-copy h3 {
  margin: 1.2rem 0 0.5rem;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.25;
}

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

.legal-copy p {
  margin: 0 0 0.8rem;
}

.legal-copy ul {
  margin: 0 0 0.9rem 1.1rem;
  padding: 0;
}

.legal-copy table {
  width: 100%;
  margin: 1rem 0;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.legal-copy th,
.legal-copy td {
  padding: 0.7rem 0.75rem;
  border-bottom: 1px solid var(--line-soft, var(--line));
  text-align: left;
  vertical-align: top;
}

.legal-copy th {
  color: var(--ink);
  font-weight: 650;
}

.legal-copy code {
  font-family: var(--font-mono);
  color: var(--accent);
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #142d28;
  color: var(--paper);
}

.footer-shell {
  width: min(var(--page), calc(100% - 2rem));
  margin: 0 auto;
  padding: 2.4rem 0;
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
}

.footer-shell p {
  margin: 0.35rem 0 0;
  color: color-mix(in srgb, var(--paper) 70%, transparent);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.footer-links a {
  color: var(--paper);
}

.reveal-ready [data-reveal] {
  opacity: 1;
  transform: none;
  transition: opacity 520ms ease, transform 520ms ease;
}

.reveal-ready [data-reveal][data-visible="true"],
[data-reveal] {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 860px) {
  :root {
    --page: calc(100vw - 1rem);
    --max: var(--page);
  }

  .nav-shell {
    width: var(--page);
    min-height: 72px;
  }

  .menu-toggle {
    display: block;
  }

  .nav-menu {
    position: fixed;
    inset: 72px 1rem auto;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 0.6rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--white);
    box-shadow: var(--shadow);
  }

  .nav-menu[data-open] {
    display: flex;
  }

  .nav-menu a {
    min-height: 44px;
    border-radius: 7px;
  }

  .nav-menu a::after {
    display: none;
  }

  .hero,
  .app-hero,
  .section-heading,
  .screen-feature,
  .screen-feature.tools,
  .split,
  .legal-layout {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .signal-board {
    min-height: 420px;
  }

  .molecule-hero-screens {
    min-height: 560px;
  }

  .screen-copy h3 {
    max-width: 18ch;
  }

  .screen-cluster,
  .mixed {
    min-height: 0;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
  }

  .screen-cluster::before {
    display: none;
  }

  .phone-pair .front,
  .phone-pair .back,
  .mixed .notes,
  .mixed .theory,
  .mixed .bulletin {
    position: relative;
    inset: auto;
    width: 100%;
    transform: none;
  }

  .screen-feature.tools .tablet-card {
    width: min(78%, 560px);
    margin-left: 0;
    transform: none;
  }

  .grid.two,
  .grid.three {
    grid-template-columns: 1fr;
  }

  .legal-nav {
    position: static;
  }

  .footer-shell {
    flex-direction: column;
  }
}

@media (max-width: 560px) {
  :root {
    --page: calc(100vw - 1rem);
  }

  .section,
  .hero,
  .nav-shell,
  .footer-shell {
    width: var(--page);
  }

  h1 {
    font-size: clamp(3rem, 18vw, 4.8rem);
  }

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

  .button {
    width: 100%;
  }

  .molecule-hero-screens {
    min-height: 0;
    display: grid;
    gap: 1rem;
  }

  .molecule-hero-screens::before {
    inset: 8% 0 10%;
  }

  .screen-tablet-landscape,
  .screen-phone {
    position: relative;
    inset: auto;
    width: 100%;
    transform: none;
  }

  .screen-phone {
    width: min(74%, 270px);
    justify-self: end;
  }

  .screen-cluster,
  .mixed {
    grid-template-columns: 1fr;
  }

  .screen-cluster .phone-card {
    width: min(82%, 320px);
  }

  .phone-pair .back,
  .mixed .theory {
    justify-self: end;
  }

  .screen-feature.tools .tablet-card,
  .screen-cluster .tablet-card {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}