@font-face {
  font-family: "Space Grotesk";
  src: url("/assets/fonts/space-grotesk-latin-var.woff2") format("woff2");
  font-weight: 300 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Inter";
  src: url("/assets/fonts/inter-latin-var.woff2?v=2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: light;
  --paper: #f4f0e9;
  --paper-warm: #ebe4da;
  --paper-light: #fbf9f5;
  --ink: #20242a;
  --ink-soft: #5b6068;
  --ink-faint: #7e8186;
  --line: rgba(32, 36, 42, 0.13);
  --line-strong: rgba(32, 36, 42, 0.25);
  --coral: #ff5b6e;
  --orange: #ff8d59;
  --violet: #8b61ff;
  --magenta: #d64dcc;
  --sky: #48bfff;
  --mint: #4fc8a8;
  --display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: ui-monospace, "SFMono-Regular", "Cascadia Code", Menlo, monospace;
  --shadow: 0 34px 90px rgba(41, 32, 26, 0.16);
  --ease: cubic-bezier(0.22, 0.61, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  overflow-x: clip;
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: clip;
  background:
    radial-gradient(circle at 8% 2%, rgba(255, 111, 100, 0.13), transparent 28rem),
    radial-gradient(circle at 93% 12%, rgba(91, 180, 255, 0.13), transparent 30rem),
    var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.34;
  background-image:
    repeating-linear-gradient(7deg, transparent 0 7px, rgba(64, 52, 42, 0.022) 8px 9px),
    repeating-linear-gradient(93deg, transparent 0 13px, rgba(84, 70, 57, 0.018) 14px 15px);
  mix-blend-mode: multiply;
}

::selection {
  background: rgba(139, 97, 255, 0.2);
}

:focus-visible {
  outline: 3px solid var(--violet);
  outline-offset: 3px;
  border-radius: 8px;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input {
  font: inherit;
}

button {
  color: inherit;
}

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

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 1000;
  transform: translateY(-150%);
  border-radius: 999px;
  background: var(--ink);
  color: white;
  padding: 10px 16px;
}

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

.wrap {
  width: min(1180px, calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  border-bottom: 1px solid transparent;
  background: rgba(244, 240, 233, 0.74);
  backdrop-filter: blur(22px) saturate(125%);
  transition: border-color 180ms, background 180ms;
}

.site-header.scrolled {
  border-color: var(--line);
  background: rgba(244, 240, 233, 0.91);
}

.nav {
  min-height: 68px;
  display: flex;
  align-items: center;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  min-height: 48px;
  font-family: var(--display);
  font-weight: 650;
  letter-spacing: -0.015em;
}

.brand img {
  width: 31px;
  height: 31px;
}

.brand small {
  color: var(--ink-faint);
  font-family: var(--sans);
  font-size: 0.7rem;
  font-weight: 550;
  letter-spacing: 0.04em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: auto;
}

.nav-links a,
.lang-link {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  padding: 0 12px;
  border-radius: 999px;
  color: var(--ink-soft);
  font-size: 0.82rem;
  font-weight: 570;
}

.nav-links a:hover,
.lang-link:hover {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.5);
}

.nav-links .mobile-language {
  display: none;
}

.nav-cta {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--ink);
  border-radius: 999px;
  background: var(--ink);
  color: #fff;
  padding: 0 18px;
  font-size: 0.82rem;
  font-weight: 650;
  transition: transform 160ms var(--ease), box-shadow 160ms;
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 28px rgba(32, 36, 42, 0.18);
}

.nav-toggle {
  display: none;
  width: 48px;
  height: 48px;
  margin-left: auto;
  border: 0;
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 4px auto;
  border-radius: 2px;
  background: var(--ink);
}

.hero {
  position: relative;
  min-height: calc(100svh - 68px);
  display: grid;
  align-items: center;
  padding: clamp(68px, 8vw, 110px) 0 clamp(86px, 10vw, 140px);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.93fr) minmax(420px, 1.07fr);
  align-items: center;
  gap: clamp(48px, 7vw, 100px);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 0.66rem;
  font-weight: 650;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 30px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--coral), var(--violet), var(--sky));
}

.hero h1 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(4.4rem, 10.5vw, 9rem);
  font-weight: 560;
  letter-spacing: -0.075em;
  line-height: 0.78;
}

.hero h1 span {
  display: block;
  margin: 0.24em 0 0 0.055em;
  background: linear-gradient(110deg, var(--coral) 0%, var(--magenta) 48%, var(--sky) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-family: var(--sans);
  font-size: 0.18em;
  font-weight: 780;
  letter-spacing: 0.38em;
  line-height: 1;
}

.hero-tagline {
  margin: 38px 0 0;
  font-family: var(--display);
  font-size: clamp(1.8rem, 4vw, 3.55rem);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 1.06;
}

.hero-copy {
  max-width: 620px;
  margin: 24px 0 0;
  color: var(--ink-soft);
  font-size: clamp(1rem, 1.5vw, 1.14rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 11px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 0 21px;
  font-weight: 660;
  transition: transform 160ms var(--ease), background 160ms, box-shadow 160ms;
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  border-color: var(--ink);
  background: var(--ink);
  color: #fff;
  box-shadow: 0 16px 35px rgba(32, 36, 42, 0.17);
}

.button.secondary {
  background: rgba(255, 255, 255, 0.46);
}

.button svg {
  width: 17px;
  height: 17px;
}

.status-line {
  display: flex;
  flex-wrap: wrap;
  gap: 9px 16px;
  align-items: center;
  margin-top: 30px;
  color: var(--ink-faint);
  font-size: 0.78rem;
  font-weight: 560;
}

.status-line span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.status-line i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 5px rgba(79, 200, 168, 0.12);
}

.hero-visual {
  position: relative;
  min-height: min(720px, 74vw);
  isolation: isolate;
}

.hero-watermark {
  position: absolute;
  z-index: -2;
  top: 2%;
  left: 3%;
  width: 92%;
  height: 92%;
  object-fit: contain;
  opacity: 0.1;
  transform: rotate(-8deg);
  filter: saturate(1.1);
}

.device {
  position: absolute;
  width: min(348px, 64vw);
  aspect-ratio: 390 / 845;
  top: 50%;
  left: 50%;
  transform: translate(-46%, -48%) rotate(5.5deg);
  border: 10px solid #2c3035;
  border-radius: 42px;
  background: #17191c;
  box-shadow:
    0 50px 100px rgba(41, 32, 26, 0.27),
    inset 0 0 0 2px rgba(255, 255, 255, 0.14);
  overflow: hidden;
}

.device::before {
  content: "";
  position: absolute;
  z-index: 2;
  top: 8px;
  left: 50%;
  width: 7px;
  height: 7px;
  transform: translateX(-50%);
  border-radius: 50%;
  background: #15171a;
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.08);
}

.device img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 30px;
}

.float-card {
  position: absolute;
  z-index: 4;
  display: flex;
  align-items: center;
  gap: 12px;
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 18px;
  background: rgba(251, 249, 245, 0.82);
  box-shadow: 0 22px 55px rgba(46, 38, 32, 0.17);
  padding: 12px 15px;
  backdrop-filter: blur(16px);
}

.float-card .dot {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.12);
}

.float-card strong {
  display: block;
  font-family: var(--display);
  font-size: 0.85rem;
}

.float-card small {
  display: block;
  margin-top: 2px;
  color: var(--ink-faint);
  font-size: 0.68rem;
}

.float-card.one {
  top: 14%;
  right: -2%;
  transform: rotate(-3deg);
}

.float-card.one .dot {
  background: conic-gradient(from 80deg, #222 0 24%, #7655d6 24% 40%, #d75d75 40% 62%, #e7d7c8 62% 82%, #222 82%);
}

.float-card.two {
  bottom: 12%;
  left: -7%;
  transform: rotate(2deg);
}

.float-card.two .dot {
  background: radial-gradient(circle at 42% 35%, #fff 0 7%, #5bbaf6 8% 36%, #785ce3 37% 62%, #24262b 63%);
}

.stylus {
  position: absolute;
  right: -2%;
  bottom: 18%;
  z-index: 5;
  width: 58%;
  height: 24px;
  transform: rotate(-42deg);
  border-radius: 999px 10px 10px 999px;
  background:
    linear-gradient(90deg, #20242a 0 9%, #555a61 9% 13%, #f0a767 13% 85%, #2b3035 85%);
  box-shadow: 0 14px 24px rgba(35, 30, 27, 0.22);
}

.stylus::after {
  content: "";
  position: absolute;
  right: -33px;
  top: 4px;
  border-top: 8px solid transparent;
  border-bottom: 8px solid transparent;
  border-left: 34px solid #25282c;
}

.section {
  position: relative;
  padding: clamp(84px, 11vw, 150px) 0;
}

section[id] {
  scroll-margin-top: 78px;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(320px, 1fr);
  gap: clamp(40px, 8vw, 110px);
  align-items: end;
  margin-bottom: clamp(48px, 7vw, 88px);
}

.section-heading h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(2.65rem, 6vw, 5.9rem);
  font-weight: 520;
  letter-spacing: -0.065em;
  line-height: 0.93;
}

.section-heading h2 em {
  display: block;
  background: linear-gradient(110deg, var(--coral), var(--violet), var(--sky));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-style: normal;
}

.section-heading p {
  margin: 0 0 6px;
  color: var(--ink-soft);
  font-size: clamp(1rem, 1.5vw, 1.15rem);
}

.dark-section {
  overflow: hidden;
  background:
    radial-gradient(circle at 14% 10%, rgba(255, 91, 110, 0.15), transparent 34rem),
    radial-gradient(circle at 88% 85%, rgba(72, 191, 255, 0.12), transparent 31rem),
    #202329;
  color: #f9f6f2;
}

.dark-section .section-heading p,
.dark-section .feature-card p,
.dark-section .material-copy p {
  color: rgba(249, 246, 242, 0.68);
}

.dark-section .eyebrow {
  color: rgba(249, 246, 242, 0.58);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
}

.feature-card {
  position: relative;
  min-height: 330px;
  grid-column: span 4;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.035);
  padding: 28px;
}

.feature-card.wide {
  grid-column: span 8;
}

.feature-card.tall {
  min-height: 440px;
}

.feature-card h3 {
  position: relative;
  z-index: 2;
  max-width: 13ch;
  margin: 0;
  font-family: var(--display);
  font-size: clamp(1.65rem, 3vw, 2.55rem);
  font-weight: 520;
  letter-spacing: -0.04em;
  line-height: 1;
}

.feature-card p {
  position: relative;
  z-index: 2;
  max-width: 37ch;
  margin: 17px 0 0;
}

.feature-number {
  display: block;
  margin-bottom: 22px;
  color: rgba(249, 246, 242, 0.42);
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.15em;
}

.solid-state-art {
  position: relative;
  width: min(46%, 230px);
  aspect-ratio: 1;
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  margin: 28px 0 0 auto;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.08), transparent 68%);
}

.solid-state-art span {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.solid-state-art span:nth-child(1) {
  width: 76%;
  height: 76%;
}

.solid-state-art span:nth-child(2) {
  width: 46%;
  height: 46%;
  background: rgba(255, 255, 255, 0.05);
}

.solid-state-art span:nth-child(3) {
  width: 17%;
  height: 17%;
  border-color: rgba(255, 91, 110, 0.7);
  background: linear-gradient(135deg, var(--coral), var(--violet));
  box-shadow: 0 0 36px rgba(139, 97, 255, 0.28);
}

.reservoir-art {
  position: relative;
  width: min(64%, 230px);
  aspect-ratio: 1;
  flex: 0 0 auto;
  margin: 28px 0 0 auto;
  border-radius: 44% 56% 58% 42% / 58% 40% 60% 42%;
  background:
    radial-gradient(circle at 34% 28%, rgba(255, 255, 255, 0.74), transparent 6%),
    radial-gradient(circle at 48% 50%, #4fc8a8 0 18%, #48bfff 19% 36%, #8b61ff 37% 52%, #ff5b6e 53% 68%, transparent 69%);
  filter: saturate(0.88);
  box-shadow: inset -20px -30px 60px rgba(20, 22, 28, 0.33);
  transform: rotate(12deg) scale(0.88);
}

.cursor-proof {
  position: relative;
  width: 100%;
  height: clamp(118px, 10vw, 150px);
  flex: 0 0 auto;
  margin: 28px 0 0;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 18px;
  object-fit: cover;
  object-position: 76% 40%;
  opacity: 0.62;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.18);
}

.recovery-art {
  position: relative;
  width: 100%;
  max-width: 520px;
  display: grid;
  flex: 0 0 auto;
  gap: 7px;
  margin: 28px 0 0 auto;
}

.recovery-art span {
  height: 35px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.13));
  transform: translateX(var(--x, 0));
}

.recovery-art span:nth-child(2) {
  --x: -18%;
}

.recovery-art span:nth-child(3) {
  --x: 7%;
}

.material-lab {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(430px, 1.22fr);
  gap: clamp(42px, 7vw, 90px);
  align-items: center;
}

.material-tabs {
  display: grid;
  gap: 9px;
}

.material-tab {
  display: grid;
  grid-template-columns: 40px 1fr auto;
  align-items: center;
  gap: 15px;
  min-height: 72px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.28);
  padding: 10px 13px;
  text-align: left;
  cursor: pointer;
  transition: background 160ms, border-color 160ms, transform 160ms var(--ease);
}

.material-tab:hover {
  transform: translateX(3px);
  border-color: var(--line-strong);
}

.material-tab[aria-pressed="true"] {
  border-color: rgba(32, 36, 42, 0.34);
  background: rgba(255, 255, 255, 0.76);
  box-shadow: 0 18px 36px rgba(42, 34, 29, 0.08);
}

.material-tab .swatch {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--swatch);
  box-shadow: inset 0 0 0 1px rgba(32, 36, 42, 0.16);
}

.material-tab strong {
  display: block;
  font-family: var(--display);
  font-size: 0.95rem;
}

.material-tab small {
  display: block;
  margin-top: 2px;
  color: var(--ink-faint);
  font-size: 0.72rem;
}

.material-tab .arrow {
  color: var(--ink-faint);
  font-size: 1.1rem;
}

.material-stage {
  position: relative;
  min-height: 590px;
  overflow: hidden;
  border: 1px solid rgba(32, 36, 42, 0.11);
  border-radius: 42px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.86), rgba(232, 225, 215, 0.68)),
    var(--paper-light);
  box-shadow: var(--shadow);
}

.material-stage::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(5deg, transparent 0 8px, rgba(54, 45, 37, 0.027) 9px 10px),
    radial-gradient(circle at 12% 15%, rgba(255, 255, 255, 0.82), transparent 40%);
}

.material-state-diagram {
  --state-a: #25282e;
  --state-b: #777b80;
  --state-c: #c2bdb4;
  position: absolute;
  top: 7%;
  left: 50%;
  width: min(430px, 74%);
  aspect-ratio: 1;
  transform: translateX(-50%);
}

.material-stage[data-media="colored"] .material-state-diagram {
  --state-a: #ff5b6e;
  --state-b: #d64dcc;
  --state-c: #8b61ff;
}

.material-stage[data-media="watercolor"] .material-state-diagram {
  --state-a: #48bfff;
  --state-b: #8b61ff;
  --state-c: #ff5b6e;
}

.material-stage[data-media="oil"] .material-state-diagram {
  --state-a: #ff8d59;
  --state-b: #ff5b6e;
  --state-c: #6e4fbb;
}

.state-ring,
.state-core {
  position: absolute;
  top: 50%;
  left: 50%;
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.state-ring {
  border: 1px solid rgba(32, 36, 42, 0.13);
}

.ring-one {
  width: 84%;
  height: 84%;
  box-shadow: inset 0 0 60px rgba(255, 255, 255, 0.35);
}

.ring-two {
  width: 57%;
  height: 57%;
  border-color: color-mix(in srgb, var(--state-b) 44%, transparent);
  background: radial-gradient(circle, color-mix(in srgb, var(--state-c) 16%, transparent), transparent 68%);
}

.state-core {
  width: 29%;
  height: 29%;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--state-a), var(--state-b), var(--state-c));
  box-shadow: 0 22px 55px color-mix(in srgb, var(--state-b) 27%, transparent);
}

.state-core img {
  width: 48%;
  height: 48%;
  filter: brightness(0) invert(1);
}

.state-label {
  position: absolute;
  border: 1px solid rgba(32, 36, 42, 0.12);
  border-radius: 999px;
  background: rgba(251, 249, 245, 0.76);
  color: var(--ink-faint);
  padding: 6px 10px;
  font-family: var(--mono);
  font-size: 0.55rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  backdrop-filter: blur(8px);
}

.label-one {
  top: 4%;
  left: 8%;
}

.label-two {
  top: 33%;
  right: -2%;
}

.label-three {
  bottom: 8%;
  left: 4%;
}

.material-copy {
  position: absolute;
  right: 32px;
  bottom: 31px;
  left: 32px;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 28px;
  border-top: 1px solid var(--line);
  padding-top: 24px;
}

.material-copy h3 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(1.8rem, 4vw, 3.4rem);
  font-weight: 540;
  letter-spacing: -0.05em;
  line-height: 1;
}

.material-copy p {
  max-width: 48ch;
  margin: 12px 0 0;
  color: var(--ink-soft);
}

.material-meter {
  display: grid;
  justify-items: end;
  gap: 6px;
  color: var(--ink-faint);
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.material-meter span {
  width: 112px;
  height: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(32, 36, 42, 0.11);
}

.material-meter span::after {
  content: "";
  display: block;
  width: var(--fill, 82%);
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--coral), var(--violet), var(--sky));
}

.material-badge {
  align-self: end;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.42);
  color: var(--ink-faint);
  padding: 7px 11px;
  font-family: var(--mono);
  font-size: 0.57rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  white-space: nowrap;
}

.principles {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(26px, 5vw, 76px);
  align-items: start;
}

.principles-sticky {
  position: sticky;
  top: 112px;
}

.principles-sticky h2 {
  max-width: 9ch;
  margin: 0;
  font-family: var(--display);
  font-size: clamp(3.2rem, 6vw, 6rem);
  font-weight: 520;
  letter-spacing: -0.068em;
  line-height: 0.92;
}

.principles-sticky p {
  max-width: 44ch;
  margin: 24px 0 0;
  color: var(--ink-soft);
}

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

.principle {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 15px;
  border-bottom: 1px solid var(--line);
  padding: 31px 0;
}

.principle > span {
  color: var(--ink-faint);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
}

.principle h3 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(1.3rem, 2.6vw, 2rem);
  font-weight: 560;
  letter-spacing: -0.035em;
}

.principle p {
  max-width: 50ch;
  margin: 10px 0 0;
  color: var(--ink-soft);
}

.quote-band {
  position: relative;
  overflow: hidden;
  padding: clamp(90px, 13vw, 180px) 0;
  background: var(--paper-light);
  text-align: center;
}

.quote-band blockquote {
  position: relative;
  z-index: 2;
  max-width: 980px;
  margin: 0 auto;
  font-family: var(--display);
  font-size: clamp(2.35rem, 6.5vw, 6.3rem);
  font-weight: 500;
  letter-spacing: -0.067em;
  line-height: 0.98;
}

.quote-band blockquote em {
  background: linear-gradient(100deg, var(--coral), var(--violet), var(--sky));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-style: normal;
}

.quote-band p {
  position: relative;
  z-index: 2;
  margin: 25px 0 0;
  color: var(--ink-faint);
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.quote-mark {
  position: absolute;
  width: 38vw;
  max-width: 580px;
  opacity: 0.08;
}

.quote-mark.left {
  top: -16%;
  left: -8%;
  transform: rotate(-16deg);
}

.quote-mark.right {
  right: -9%;
  bottom: -22%;
  transform: rotate(168deg);
}

.faq-grid {
  display: grid;
  grid-template-columns: minmax(240px, 0.68fr) minmax(0, 1.32fr);
  gap: clamp(45px, 8vw, 110px);
}

.faq-grid h2 {
  position: sticky;
  top: 108px;
  margin: 0;
  font-family: var(--display);
  font-size: clamp(2.8rem, 6vw, 5.8rem);
  font-weight: 520;
  letter-spacing: -0.065em;
  line-height: 0.95;
}

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

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

.faq-list summary {
  position: relative;
  min-height: 74px;
  display: flex;
  align-items: center;
  padding: 18px 54px 18px 0;
  cursor: pointer;
  font-family: var(--display);
  font-size: clamp(1.06rem, 2vw, 1.35rem);
  font-weight: 580;
  list-style: none;
}

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

.faq-list summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  color: var(--ink-faint);
  font-family: var(--sans);
  font-size: 1.6rem;
  font-weight: 350;
  transition: transform 180ms;
}

.faq-list details[open] summary::after {
  transform: rotate(45deg);
}

.faq-answer {
  max-width: 66ch;
  padding: 0 54px 28px 0;
  color: var(--ink-soft);
}

.signup {
  padding: clamp(65px, 9vw, 110px) 0;
}

.signup-panel {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.85fr);
  gap: clamp(35px, 7vw, 90px);
  align-items: center;
  border-radius: 36px;
  background:
    radial-gradient(circle at 5% 10%, rgba(255, 91, 110, 0.24), transparent 27rem),
    radial-gradient(circle at 94% 90%, rgba(72, 191, 255, 0.2), transparent 28rem),
    #25282e;
  color: #fff;
  padding: clamp(34px, 6vw, 74px);
  box-shadow: var(--shadow);
}

.signup-panel h2 {
  max-width: 12ch;
  margin: 0;
  font-family: var(--display);
  font-size: clamp(2.4rem, 5vw, 4.8rem);
  font-weight: 520;
  letter-spacing: -0.06em;
  line-height: 0.95;
}

.signup-panel p {
  max-width: 52ch;
  margin: 20px 0 0;
  color: rgba(255, 255, 255, 0.67);
}

.signup-form {
  position: relative;
  z-index: 2;
}

.signup-fields {
  display: flex;
  gap: 9px;
  padding: 7px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.07);
  backdrop-filter: blur(12px);
}

.signup-fields input[type="email"] {
  min-width: 0;
  flex: 1;
  border: 0;
  outline: 0;
  background: transparent;
  color: white;
  padding: 0 13px;
}

.signup-fields input::placeholder {
  color: rgba(255, 255, 255, 0.42);
}

.signup-fields button {
  min-height: 48px;
  border: 0;
  border-radius: 12px;
  background: white;
  color: var(--ink);
  padding: 0 18px;
  font-weight: 700;
  cursor: pointer;
}

.signup-message {
  min-height: 1.5em;
  margin: 12px 4px 0;
  color: rgba(255, 255, 255, 0.64);
  font-size: 0.82rem;
}

.signup-message.ok {
  color: #8cf0c9;
}

.hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 36px 0 45px;
}

.footer-grid {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--display);
  font-weight: 650;
}

.footer-brand img {
  width: 29px;
  height: 29px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  color: var(--ink-soft);
  font-size: 0.8rem;
}

.footer-links a {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
}

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

.copyright {
  width: 100%;
  color: var(--ink-faint);
  font-family: var(--mono);
  font-size: 0.59rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 700ms var(--ease), transform 700ms var(--ease);
}

[data-reveal].visible {
  opacity: 1;
  transform: none;
}

@media (max-width: 980px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    max-width: 700px;
  }

  .hero-visual {
    min-height: 720px;
  }

  .device {
    width: 340px;
  }

  .section-heading,
  .material-lab {
    grid-template-columns: 1fr;
  }

  .feature-card,
  .feature-card.wide {
    grid-column: span 6;
  }

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

  .material-stage {
    min-height: 560px;
  }
}

@media (max-width: 760px) {
  .wrap {
    width: min(100% - 28px, 1180px);
  }

  .nav-toggle {
    display: block;
  }

  .lang-link,
  .nav > .nav-cta {
    display: none;
  }

  .nav-links {
    position: absolute;
    top: 68px;
    right: 14px;
    left: 14px;
    display: none;
    margin: 0;
    flex-direction: column;
    align-items: stretch;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: rgba(251, 249, 245, 0.97);
    box-shadow: 0 24px 60px rgba(38, 31, 26, 0.17);
    padding: 9px;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    padding: 0 16px;
  }

  .nav-links .mobile-language {
    display: inline-flex;
  }

  .hero {
    padding-top: 60px;
  }

  .hero h1 {
    font-size: clamp(4.3rem, 24vw, 7rem);
  }

  .hero-visual {
    min-height: 620px;
  }

  .device {
    width: min(310px, 75vw);
    transform: translate(-50%, -48%) rotate(4deg);
  }

  .float-card.one {
    right: 0;
  }

  .float-card.two {
    left: 0;
  }

  .stylus {
    right: -5%;
    width: 66%;
  }

  .feature-card,
  .feature-card.wide {
    min-height: 330px;
    grid-column: 1 / -1;
  }

  .principles,
  .faq-grid,
  .signup-panel {
    grid-template-columns: 1fr;
  }

  .principles-sticky,
  .faq-grid h2 {
    position: static;
  }

  .principles-sticky h2 {
    max-width: 13ch;
  }

  .faq-grid {
    gap: 34px;
  }

  .signup-fields {
    display: grid;
  }

  .signup-fields input[type="email"] {
    min-height: 48px;
  }
}

@media (max-width: 540px) {
  .brand small {
    display: none;
  }

  .hero-visual {
    min-height: 570px;
  }

  .device {
    width: min(286px, 79vw);
  }

  .float-card {
    max-width: 180px;
    padding: 9px 11px;
  }

  .float-card .dot {
    width: 28px;
    height: 28px;
  }

  .stylus {
    bottom: 15%;
  }

  .material-tabs {
    grid-template-columns: 1fr;
  }

  .material-stage {
    min-height: 540px;
    border-radius: 28px;
  }

  .material-copy {
    right: 22px;
    bottom: 22px;
    left: 22px;
    grid-template-columns: 1fr;
  }

  .material-meter {
    justify-items: start;
  }

  .principle {
    grid-template-columns: 42px 1fr;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}