:root {
  --paper: #f3f0e8;
  --paper-deep: #e8e3d8;
  --paper-bright: #fbf9f4;
  --card: #fbf9f4;
  --ink: #171614;
  --ink-soft: #34312d;
  --muted: #6c675f;
  --line: rgba(23, 22, 20, 0.13);
  --line-strong: rgba(23, 22, 20, 0.3);
  --signal: #f45a24;
  --signal-dark: #bb3610;
  --signal-tint: rgba(244, 90, 36, 0.1);
  --green: #b9e772;
  --white: #fffdf8;
  --display: "Iowan Old Style", "Baskerville", "Times New Roman", serif;
  --sans: "Avenir Next", "Avenir", "Helvetica Neue", sans-serif;
  --mono: ui-monospace, "SFMono-Regular", "SF Mono", Menlo, Monaco, Consolas, monospace;
  --radius: 20px;
  --radius-lg: 28px;
  --shadow-sm: 0 2px 14px rgba(31, 26, 20, 0.06);
  --shadow: 0 30px 80px rgba(31, 26, 20, 0.12);
  --shadow-card: 0 1px 0 rgba(255, 255, 255, 0.6) inset, 0 24px 60px rgba(31, 26, 20, 0.1);
  --wrap: min(1160px, calc(100vw - 48px));
  --section-y: clamp(92px, 12vw, 148px);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
  background: var(--paper);
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(90deg, transparent calc(50% - 0.5px), rgba(23, 22, 20, 0.035) 50%, transparent calc(50% + 0.5px)),
    radial-gradient(circle at 8% 4%, rgba(244, 90, 36, 0.08), transparent 24rem),
    var(--paper);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

::selection {
  color: var(--white);
  background: var(--signal);
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

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

button,
input {
  font: inherit;
}

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

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

:focus-visible {
  outline: 3px solid rgba(244, 90, 36, 0.45);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 10px;
  left: 10px;
  padding: 10px 14px;
  color: var(--white);
  background: var(--ink);
  border-radius: 8px;
  transform: translateY(-160%);
  transition: transform 160ms ease;
}

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

.lang-ru {
  display: none;
}

html[lang="en"] .lang-ru,
html[lang="ru"] .lang-en {
  display: none !important;
}

html[lang="ru"] .lang-ru {
  display: inline;
}

.wrap {
  width: var(--wrap);
  margin-inline: auto;
}

/* ============ Header / navigation ============ */
.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  border-bottom: 1px solid var(--line);
  background: rgba(243, 240, 232, 0.82);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
}

.nav-shell {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  min-height: 70px;
  gap: 30px;
}

.nav-shell > *,
.hero-grid > *,
.feature-hero-grid > *,
.download-grid > * {
  min-width: 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.015em;
  text-decoration: none;
}

.brand-mark {
  position: relative;
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  overflow: hidden;
  color: var(--white);
  background: var(--ink);
  border-radius: 9px;
  font-family: var(--display);
  font-size: 21px;
  font-weight: 700;
  line-height: 1;
}

.brand-mark::after {
  position: absolute;
  right: -7px;
  bottom: -7px;
  width: 17px;
  height: 17px;
  background: var(--signal);
  border-radius: 50%;
  content: "";
}

.brand-meta {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.desktop-nav {
  display: flex;
  justify-content: center;
  gap: 2px;
}

.desktop-nav a {
  padding: 9px 13px;
  color: var(--muted);
  border-radius: 9px;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: color 160ms ease, background 160ms ease;
}

.desktop-nav a:hover,
.desktop-nav a[aria-current="page"] {
  color: var(--ink);
  background: rgba(23, 22, 20, 0.06);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.lang-toggle {
  display: flex;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 10px;
}

.lang-toggle button {
  min-width: 34px;
  padding: 5px 7px;
  color: var(--muted);
  background: transparent;
  border: 0;
  border-radius: 7px;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  transition: color 140ms ease, background 140ms ease;
}

.lang-toggle button[aria-pressed="true"] {
  color: var(--white);
  background: var(--ink);
}

.mobile-menu {
  display: none;
}

/* ============ Buttons ============ */
.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 22px;
  border: 1px solid var(--ink);
  border-radius: 13px;
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease, color 160ms ease, border-color 160ms ease;
}

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

.button-dark {
  color: var(--white);
  background: var(--ink);
  box-shadow: 0 10px 24px rgba(23, 22, 20, 0.18);
}

.button-dark:hover {
  background: var(--signal);
  border-color: var(--signal);
  box-shadow: 0 14px 30px rgba(244, 90, 36, 0.28);
}

.button-light {
  color: var(--ink);
  background: rgba(255, 253, 248, 0.5);
  border-color: var(--line-strong);
}

.button-light:hover {
  background: var(--paper-bright);
  border-color: var(--ink);
}

.button-signal {
  color: var(--white);
  background: var(--signal);
  border-color: var(--signal);
  box-shadow: 0 10px 24px rgba(244, 90, 36, 0.24);
}

.button-signal:hover {
  background: var(--signal-dark);
  border-color: var(--signal-dark);
  box-shadow: 0 14px 30px rgba(244, 90, 36, 0.3);
}

.button[aria-disabled="true"] {
  color: var(--muted);
  background: transparent;
  border-color: var(--line-strong);
  box-shadow: none;
  cursor: not-allowed;
  transform: none;
}

.download-section [data-release-download][data-release-state="released"] {
  color: var(--ink);
  background: var(--paper-bright);
  border-color: var(--paper-bright);
  box-shadow: 0 12px 26px rgba(23, 22, 20, 0.2);
}

.download-section [data-release-download][data-release-state="released"]:hover {
  background: var(--white);
  border-color: var(--white);
  color: var(--ink);
}

.button .arrow {
  font-size: 16px;
  transition: transform 160ms ease;
}

.button:hover .arrow {
  transform: translateX(3px);
}

/* ============ Shared primitives ============ */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 22px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  line-height: 1.2;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 7px;
  height: 7px;
  background: var(--signal);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(244, 90, 36, 0.12);
  content: "";
}

.section {
  padding-block: var(--section-y);
  border-bottom: 1px solid var(--line);
}

.section-head {
  display: grid;
  grid-template-columns: minmax(200px, 0.36fr) minmax(0, 0.64fr);
  gap: clamp(30px, 6vw, 70px);
  margin-bottom: 64px;
}

.section-index {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.section-index b {
  color: var(--signal);
  font-weight: 700;
}

.section-title {
  max-width: 20ch;
  margin: 0;
  font-family: var(--display);
  font-size: clamp(40px, 5vw, 68px);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 1.03;
}

.section-lede {
  max-width: 620px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.6;
}

/* ============ Hero ============ */
.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(400px, 0.98fr);
  align-items: center;
  gap: clamp(48px, 7vw, 96px);
  padding-block: clamp(56px, 8vw, 104px) clamp(64px, 9vw, 112px);
}

.hero-copy {
  position: relative;
  z-index: 2;
}

.hero h1,
.feature-hero h1,
.legal-hero h1,
.download-section h2 {
  margin: 0;
  font-family: var(--display);
  font-weight: 500;
  letter-spacing: -0.05em;
  line-height: 0.96;
  overflow-wrap: break-word;
}

.hero h1 {
  max-width: 14ch;
  font-size: clamp(46px, 7.6vw, 92px);
  text-wrap: balance;
}

/* RU headline words run long («перенабирайте») — smaller scale so the
   word never fractures mid-line at any width. */
html[lang="ru"] .hero h1 {
  max-width: 16ch;
  font-size: clamp(40px, 11.5vw, 74px);
}

@media (min-width: 981px) {
  html[lang="ru"] .hero h1 {
    font-size: clamp(46px, 5.2vw, 74px);
  }
}

.hero h1 .soft {
  color: var(--muted);
}

.hero h1 em,
.feature-hero h1 em {
  color: var(--signal);
  font-style: italic;
  font-weight: 500;
}

.hero-lede,
.feature-lede {
  max-width: 560px;
  margin: 28px 0 0;
  color: var(--ink-soft);
  font-size: clamp(17px, 1.5vw, 21px);
  line-height: 1.55;
  letter-spacing: -0.012em;
}

.hero-actions,
.feature-actions,
.download-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 34px;
}

.hero-textlink {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 4px;
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  border-radius: 0;
  transition: color 160ms ease, border-color 160ms ease;
}

.hero-textlink:hover {
  color: var(--signal);
  border-color: var(--signal);
}

.hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-top: 30px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero-proof > span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.hero-proof > span::before {
  width: 4px;
  height: 4px;
  background: var(--ink);
  border-radius: 50%;
  content: "";
}

/* ============ Live demo card ============ */
.demo-card {
  position: relative;
  padding: 14px;
  color: rgba(255, 253, 248, 0.92);
  background: #1b1a18;
  border: 1px solid #0b0b0a;
  border-radius: var(--radius-lg);
  box-shadow: 0 45px 100px rgba(23, 22, 20, 0.26), inset 0 1px rgba(255, 255, 255, 0.08);
}

.demo-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 12px 16px;
  color: rgba(255, 255, 255, 0.42);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.demo-dots {
  display: inline-flex;
  gap: 6px;
}

.demo-dots i {
  width: 9px;
  height: 9px;
  background: rgba(255, 255, 255, 0.16);
  border-radius: 50%;
}

.demo-app {
  color: rgba(255, 255, 255, 0.62);
}

.demo-live {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-left: auto;
}

.demo-live::before {
  width: 7px;
  height: 7px;
  background: var(--green);
  border-radius: 50%;
  box-shadow: 0 0 12px rgba(185, 231, 114, 0.7);
  content: "";
}

.demo-stage {
  position: relative;
  display: flex;
  min-height: 232px;
  flex-direction: column;
  justify-content: center;
  gap: 24px;
  overflow: hidden;
  padding: 36px 28px 40px;
  background: #232019;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 20px;
}

.demo-stage::before {
  position: absolute;
  top: -40%;
  right: -20%;
  width: 60%;
  height: 120%;
  background: radial-gradient(circle, rgba(244, 90, 36, 0.24), transparent 70%);
  content: "";
  pointer-events: none;
}

.demo-line {
  position: relative;
  margin: 0;
  min-height: 1.15em;
  color: rgba(255, 255, 255, 0.9);
  font-family: var(--display);
  font-size: clamp(32px, 5vw, 56px);
  letter-spacing: -0.03em;
  line-height: 1.08;
}

.demo-line.is-wrong {
  color: rgba(255, 255, 255, 0.4);
  text-decoration: line-through;
  text-decoration-color: var(--signal);
  text-decoration-thickness: 2px;
}

.demo-line.is-right {
  color: var(--white);
}

.demo-caret {
  display: inline-block;
  width: 3px;
  height: 0.86em;
  margin-left: 6px;
  background: var(--signal);
  vertical-align: -0.06em;
  animation: blink 1s step-end infinite;
}

.demo-badge {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-self: flex-start;
  align-items: center;
  gap: 8px;
  padding: 8px 13px;
  color: #ffccb9;
  background: rgba(244, 90, 36, 0.16);
  border: 1px solid rgba(244, 90, 36, 0.42);
  border-radius: 99px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 380ms ease, transform 380ms ease;
}

.demo-badge.is-shown {
  opacity: 1;
  transform: none;
}

.demo-badge-dot {
  width: 6px;
  height: 6px;
  background: var(--signal);
  border-radius: 50%;
}

.demo-foot {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 14px 8px;
  color: rgba(255, 255, 255, 0.42);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

@keyframes blink {
  50% { opacity: 0; }
}

/* ============ Time / the sell ============ */
.time {
  padding-block: var(--section-y);
  border-bottom: 1px solid var(--line);
}

.sell-head {
  max-width: 820px;
  margin: 0 auto 60px;
  text-align: center;
}

.sell-head .eyebrow {
  justify-content: center;
}

.sell-head h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(40px, 6vw, 82px);
  font-weight: 500;
  letter-spacing: -0.05em;
  line-height: 0.98;
}

.sell-head h2 em {
  color: var(--signal);
  font-style: italic;
  font-weight: 500;
}

.sell-head p {
  max-width: 620px;
  margin: 24px auto 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.6;
}

.stat-bento {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.stat-card {
  display: flex;
  min-height: 320px;
  flex-direction: column;
  padding: clamp(26px, 3vw, 40px);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}

.stat-tag {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.stat-figure {
  margin-top: auto;
  padding-top: 34px;
  color: var(--signal);
  font-family: var(--display);
  font-size: clamp(60px, 8vw, 96px);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 0.85;
}

.stat-figure .unit {
  margin-left: 6px;
  color: var(--ink);
  font-size: 0.4em;
  letter-spacing: -0.02em;
}

.stat-label {
  margin: 18px 0 0;
  font-family: var(--display);
  font-size: 23px;
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.18;
}

.stat-sub {
  margin: 10px 0 0;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.02em;
  line-height: 1.5;
}

.impact-card {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: clamp(24px, 4vw, 56px);
  margin-top: 18px;
  padding: clamp(28px, 4vw, 48px);
  color: var(--white);
  background: var(--ink);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.impact-card h3 {
  margin: 14px 0 0;
  font-family: var(--display);
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.08;
}

.impact-card .eyebrow {
  color: rgba(255, 255, 255, 0.6);
}

.impact-mock {
  padding: 26px;
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
}

.impact-mock-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: rgba(255, 255, 255, 0.5);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.impact-mock-tag {
  padding: 3px 7px;
  color: var(--signal);
  border: 1px solid rgba(244, 90, 36, 0.4);
  border-radius: 99px;
}

.impact-metric {
  margin-top: 14px;
  color: var(--signal);
  font-family: var(--display);
  font-size: clamp(40px, 6vw, 56px);
  font-weight: 500;
  letter-spacing: -0.04em;
  line-height: 1;
}

.impact-metric small {
  color: rgba(255, 255, 255, 0.55);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
}

.impact-bars {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 44px;
  margin-top: 20px;
}

.impact-bars i {
  flex: 1;
  background: rgba(255, 255, 255, 0.16);
  border-radius: 3px 3px 0 0;
}

.impact-bars i:nth-child(1) { height: 42%; }
.impact-bars i:nth-child(2) { height: 68%; }
.impact-bars i:nth-child(3) { height: 54%; }
.impact-bars i:nth-child(4) { height: 88%; }
.impact-bars i:nth-child(5) { height: 72%; }
.impact-bars i:nth-child(6) { height: 100%; background: var(--signal); }

.time-note {
  max-width: 760px;
  margin: 34px auto 0;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.7;
  letter-spacing: 0.01em;
  text-align: center;
}

/* ============ How it works ============ */
.how-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line-strong);
  border-left: 1px solid var(--line);
}

.how-step {
  min-height: 210px;
  padding: 32px 30px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.how-index {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  color: var(--signal);
  background: var(--signal-tint);
  border-radius: 10px;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
}

.how-step h3 {
  margin: 46px 0 0;
  font-family: var(--display);
  font-size: 25px;
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.15;
}

.how-step p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 14px;
}

/* ============ Toolkit bento ============ */
.kit-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.kit-card {
  display: flex;
  flex-direction: column;
  padding: clamp(26px, 3vw, 38px);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  transition: transform 200ms ease, box-shadow 200ms ease, border-color 200ms ease;
}

.kit-card:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-card);
}

.kit-lead {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  align-items: end;
  gap: clamp(24px, 4vw, 60px);
  min-height: 220px;
  color: var(--white);
  background: var(--ink);
  border-color: #0b0b0a;
  box-shadow: var(--shadow);
}

.kit-index {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--signal);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.kit-index em {
  color: var(--muted);
  font-style: normal;
}

.kit-lead .kit-index em {
  color: rgba(255, 255, 255, 0.5);
}

.kit-name {
  margin: 26px 0 0;
  font-family: var(--display);
  font-size: clamp(30px, 3.4vw, 44px);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1;
}

.kit-card:not(.kit-lead) .kit-name {
  margin-top: 20px;
  font-size: clamp(26px, 2.6vw, 32px);
}

.kit-line {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.5;
}

.kit-lead .kit-line {
  max-width: 42ch;
  color: rgba(255, 255, 255, 0.62);
  font-size: 17px;
}

.kit-lead-copy {
  min-width: 0;
}

.kit-open {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 22px;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.kit-lead .kit-open {
  color: var(--white);
}

.kit-card:not(.kit-lead) .kit-open {
  margin-top: auto;
  padding-top: 26px;
}

.kit-open .arrow {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  transition: color 180ms ease, background 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.kit-lead .kit-open .arrow {
  border-color: rgba(255, 255, 255, 0.3);
}

.kit-card:hover .kit-open .arrow {
  color: var(--white);
  background: var(--signal);
  border-color: var(--signal);
  transform: rotate(-20deg);
}

/* ============ Privacy strip ============ */
.privacy-lockup {
  display: grid;
  grid-template-columns: minmax(0, 0.56fr) minmax(320px, 0.44fr);
  gap: clamp(40px, 8vw, 100px);
  align-items: start;
}

.privacy-statement {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(38px, 5vw, 66px);
  font-weight: 500;
  letter-spacing: -0.05em;
  line-height: 1;
}

.privacy-statement em {
  color: var(--signal);
  font-style: italic;
}

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

.privacy-point {
  display: grid;
  grid-template-columns: 26px 1fr;
  gap: 14px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 15px;
}

.privacy-point b {
  color: var(--signal);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
}

.privacy-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 22px;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
}

.privacy-link:hover {
  color: var(--signal);
}

/* ============ Pricing ============ */
.pricing-shell {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  overflow: hidden;
  border: 1px solid var(--ink);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.price-column {
  padding: clamp(30px, 4vw, 54px);
  background: var(--paper-bright);
}

.price-column.pro {
  color: var(--white);
  background: var(--ink);
}

.price-kicker {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.price-badge {
  padding: 5px 9px;
  color: var(--white);
  background: var(--signal);
  border-radius: 99px;
  font-size: 8px;
}

.price-name {
  margin: 40px 0 10px;
  font-family: var(--display);
  font-size: 52px;
  font-weight: 500;
  letter-spacing: -0.05em;
  line-height: 1;
}

.price-summary {
  min-height: 44px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.pro .price-summary {
  color: rgba(255, 255, 255, 0.56);
}

.feature-checks {
  display: grid;
  gap: 13px;
  margin: 32px 0;
  padding: 0;
  list-style: none;
}

.feature-checks li {
  position: relative;
  padding-left: 24px;
  font-size: 14px;
}

.feature-checks li::before {
  position: absolute;
  top: 0;
  left: 0;
  color: var(--signal);
  font-family: var(--mono);
  font-weight: 800;
  content: "↳";
}

.plan-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 30px;
}

.plan-option {
  display: flex;
  min-height: 168px;
  flex-direction: column;
  align-items: stretch;
  padding: 18px;
  color: var(--white);
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 14px;
  cursor: pointer;
  text-align: left;
  transition: background 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.plan-option:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: var(--signal);
  transform: translateY(-2px);
}

.plan-option:disabled,
.plan-option[aria-disabled="true"] {
  opacity: 0.48;
  cursor: not-allowed;
  filter: saturate(0.45);
}

.plan-option:disabled:hover,
.plan-option[aria-disabled="true"]:hover {
  background: rgba(255, 255, 255, 0.055);
  border-color: rgba(255, 255, 255, 0.16);
  transform: none;
}

.plan-option[aria-busy="true"] {
  opacity: 0.68;
  cursor: wait;
}

.plan-option.recommended {
  background: var(--signal);
  border-color: var(--signal);
  box-shadow: 0 14px 34px rgba(244, 90, 36, 0.32);
}

.sales-availability {
  margin: 24px 0 -12px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
}

.sales-live {
  display: none;
}

[data-sales-state="live"] .sales-live {
  display: inline;
}

[data-sales-state="live"] .sales-closed {
  display: none;
}

.plan-label {
  color: rgba(255, 255, 255, 0.54);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.recommended .plan-label {
  color: rgba(255, 255, 255, 0.82);
}

.plan-price {
  margin-top: 20px;
  font-family: var(--display);
  font-size: 32px;
  letter-spacing: -0.04em;
}

.plan-unit {
  margin-top: 2px;
  color: rgba(255, 255, 255, 0.5);
  font-size: 10px;
}

.recommended .plan-unit {
  color: rgba(255, 255, 255, 0.82);
}

.plan-action {
  margin-top: auto;
  padding-top: 20px;
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
}

.pricing-note {
  margin: 18px 0 0;
  color: rgba(255, 255, 255, 0.42);
  font-size: 11px;
  line-height: 1.55;
}

/* ============ FAQ ============ */
.faq-list {
  max-width: 900px;
  margin-left: auto;
  border-top: 1px solid var(--line-strong);
}

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

.faq-list summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  padding: 26px 0;
  cursor: pointer;
  font-family: var(--display);
  font-size: 24px;
  letter-spacing: -0.025em;
  line-height: 1.2;
  list-style: none;
}

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

.faq-list summary::after {
  color: var(--signal);
  font-family: var(--mono);
  font-size: 18px;
  content: "+";
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-answer {
  max-width: 720px;
  padding: 0 0 28px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.65;
}

/* ============ Download / release desk ============ */
.download-section {
  position: relative;
  overflow: hidden;
  color: var(--paper-bright);
  background: var(--signal);
}

.download-grid {
  display: grid;
  min-height: 480px;
  grid-template-columns: 1fr 0.6fr;
  align-items: end;
  gap: clamp(40px, 6vw, 70px);
  padding-block: clamp(72px, 9vw, 100px);
}

.download-section h2 {
  max-width: 14ch;
  font-size: clamp(52px, 7.5vw, 104px);
}

.download-section h2 em {
  color: var(--ink);
  font-style: italic;
  font-weight: 500;
}

.download-section p {
  max-width: 480px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 16px;
  line-height: 1.6;
}

.release-ticket {
  position: relative;
  padding: 26px;
  color: var(--ink);
  background: var(--paper-bright);
  border: 1px solid rgba(23, 22, 20, 0.4);
  border-radius: 3px;
  box-shadow: 12px 12px 0 rgba(23, 22, 20, 0.2);
  transform: rotate(-2deg);
}

.release-ticket::before,
.release-ticket::after {
  position: absolute;
  top: 50%;
  width: 18px;
  height: 18px;
  background: var(--signal);
  border: 1px solid rgba(23, 22, 20, 0.4);
  border-radius: 50%;
  content: "";
  transform: translateY(-50%);
}

.release-ticket::before { left: -10px; }
.release-ticket::after { right: -10px; }

.ticket-label {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.ticket-status {
  margin: 38px 0 8px;
  font-family: var(--display);
  font-size: 36px;
  letter-spacing: -0.04em;
  line-height: 1;
}

.ticket-meta {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 9px;
  line-height: 1.6;
  text-transform: uppercase;
}

.release-sha {
  overflow-wrap: anywhere;
  text-transform: none;
}

/* ============ Footer ============ */
.site-footer {
  color: rgba(255, 255, 255, 0.72);
  background: var(--ink);
  padding-block: 64px 34px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr repeat(3, 0.55fr);
  gap: 50px;
}

.footer-brand p {
  max-width: 360px;
  margin: 18px 0 0;
  color: rgba(255, 255, 255, 0.42);
  font-size: 13px;
  line-height: 1.6;
}

.footer-column h3 {
  margin: 0 0 15px;
  color: rgba(255, 255, 255, 0.35);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.footer-column a {
  display: block;
  width: fit-content;
  margin: 8px 0;
  color: rgba(255, 255, 255, 0.7);
  font-size: 12px;
  text-decoration: none;
}

.footer-column a:hover {
  color: var(--signal);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 54px;
  padding-top: 22px;
  color: rgba(255, 255, 255, 0.28);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ============ Feature (module) pages ============ */
.feature-hero {
  padding-block: 68px 88px;
  border-bottom: 1px solid var(--line);
}

.breadcrumb {
  display: inline-flex;
  gap: 8px;
  margin-bottom: 60px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.breadcrumb a:hover {
  color: var(--signal);
}

.feature-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.58fr) minmax(390px, 0.42fr);
  gap: clamp(48px, 8vw, 100px);
  align-items: center;
}

.feature-hero h1 {
  max-width: 15ch;
  font-size: clamp(56px, 7vw, 96px);
}

.instrument-card {
  position: relative;
  min-height: 500px;
  overflow: hidden;
  padding: 20px;
  color: var(--white);
  background: var(--ink);
  border: 1px solid #050505;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.instrument-head {
  display: flex;
  justify-content: space-between;
  padding-bottom: 18px;
  color: rgba(255, 255, 255, 0.42);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.instrument-body {
  display: flex;
  min-height: 410px;
  flex-direction: column;
  justify-content: center;
  padding: 34px 12px 12px;
}

.typing-demo .wrong-line,
.typing-demo .right-line {
  font-family: var(--display);
  font-size: clamp(34px, 4vw, 56px);
  letter-spacing: -0.03em;
  line-height: 1.12;
}

.typing-demo .wrong-line {
  color: rgba(255, 255, 255, 0.32);
  text-decoration: line-through;
  text-decoration-color: var(--signal);
  text-decoration-thickness: 2px;
}

.typing-demo .right-line {
  margin-top: 12px;
}

.typing-demo .cursor {
  display: inline-block;
  width: 2px;
  height: 0.82em;
  margin-left: 4px;
  background: var(--signal);
  animation: blink 1s step-end infinite;
}

.instrument-meta-row {
  display: flex;
  justify-content: space-between;
  margin-top: 60px;
  padding-top: 15px;
  color: rgba(255, 255, 255, 0.38);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-family: var(--mono);
  font-size: 8px;
  text-transform: uppercase;
}

.clipboard-stack {
  position: relative;
  min-height: 340px;
}

.clip-item {
  position: absolute;
  right: 0;
  left: 0;
  display: grid;
  grid-template-columns: 30px 1fr auto;
  align-items: center;
  gap: 12px;
  min-height: 88px;
  padding: 14px;
  color: var(--ink);
  background: var(--paper-bright);
  border: 1px solid rgba(23, 22, 20, 0.4);
  border-radius: 12px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
}

.clip-item:nth-child(1) { top: 10px; z-index: 3; transform: rotate(-1deg); }
.clip-item:nth-child(2) { top: 110px; left: 10px; right: -5px; z-index: 2; transform: rotate(1.5deg); }
.clip-item:nth-child(3) { top: 210px; left: -4px; right: 8px; z-index: 1; transform: rotate(-2deg); }

.clip-number {
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  color: var(--white);
  background: var(--ink);
  border-radius: 7px;
  font-family: var(--mono);
  font-size: 9px;
}

.clip-copy strong { display: block; font-size: 12px; }
.clip-copy small { display: block; margin-top: 3px; color: var(--muted); font-size: 9px; }
.clip-type { color: var(--signal); font-family: var(--mono); font-size: 8px; text-transform: uppercase; }

.display-demo {
  gap: 18px;
}

.display-unit {
  padding: 20px;
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
}

.display-unit-head {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
}

.display-unit-head span:last-child {
  color: var(--signal);
  font-family: var(--mono);
  font-size: 9px;
}

.display-slider {
  position: relative;
  height: 3px;
  margin: 24px 0 15px;
  background: rgba(255, 255, 255, 0.18);
  border-radius: 4px;
}

.display-slider::before {
  position: absolute;
  inset: 0 24% 0 0;
  background: var(--signal);
  border-radius: inherit;
  content: "";
}

.display-slider::after {
  position: absolute;
  top: 50%;
  left: 76%;
  width: 13px;
  height: 13px;
  background: var(--white);
  border-radius: 50%;
  content: "";
  transform: translate(-50%, -50%);
}

.display-tags {
  display: flex;
  gap: 7px;
  color: rgba(255, 255, 255, 0.4);
  font-family: var(--mono);
  font-size: 8px;
  text-transform: uppercase;
}

.power-gauge {
  position: relative;
  width: 230px;
  height: 230px;
  margin: 10px auto 30px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
}

.power-gauge::before,
.power-gauge::after {
  position: absolute;
  border-radius: 50%;
  content: "";
}

.power-gauge::before {
  inset: 17px;
  border: 18px solid rgba(255, 255, 255, 0.08);
  border-top-color: var(--signal);
  border-right-color: var(--signal);
  transform: rotate(-18deg);
}

.power-gauge::after {
  inset: 61px;
  background: rgba(255, 255, 255, 0.04);
}

.power-gauge-copy {
  position: absolute;
  z-index: 2;
  inset: 0;
  display: grid;
  place-content: center;
  text-align: center;
}

.power-gauge-copy strong {
  font-family: var(--display);
  font-size: 42px;
  font-weight: 500;
}

.power-gauge-copy > span {
  color: rgba(255, 255, 255, 0.42);
  font-family: var(--mono);
  font-size: 8px;
  text-transform: uppercase;
}

.feature-detail-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line-strong);
  border-left: 1px solid var(--line);
}

.feature-detail {
  min-height: 280px;
  padding: 30px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.feature-detail .detail-no {
  color: var(--signal);
  font-family: var(--mono);
  font-size: 9px;
}

.feature-detail h3 {
  margin: 66px 0 12px;
  font-family: var(--display);
  font-size: 30px;
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.05;
}

.feature-detail p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.compatibility-band {
  color: var(--white);
  background: var(--ink);
  padding-block: 70px;
}

.compatibility-grid {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: 80px;
}

.compatibility-grid h2 {
  margin: 0;
  font-family: var(--display);
  font-size: 44px;
  font-weight: 500;
  letter-spacing: -0.04em;
  line-height: 1;
}

.compatibility-copy {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 25px;
}

.compatibility-copy p {
  margin: 0;
  color: rgba(255, 255, 255, 0.52);
  font-size: 13px;
  line-height: 1.6;
}

.compatibility-copy strong {
  display: block;
  margin-bottom: 7px;
  color: var(--white);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ============ Guides ============ */
.guide-index-hero,
.guide-hero {
  padding-block: 92px 78px;
  border-bottom: 1px solid var(--line);
}

.guide-index-hero h1,
.guide-hero h1 {
  max-width: 980px;
  margin: 0;
  font-family: var(--display);
  font-size: clamp(54px, 7vw, 96px);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 0.96;
}

.guide-index-hero h1 em {
  color: var(--signal);
  font-weight: 500;
}

.guide-index-hero > .wrap > p:last-child,
.guide-hero .guide-narrow > p:last-child {
  max-width: 760px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: 18px;
}

.guide-narrow {
  width: min(920px, calc(100vw - 40px));
  margin-inline: auto;
}

.guide-narrow .breadcrumb {
  margin-bottom: 54px;
  text-decoration: none;
}

.guide-index {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-left: 1px solid var(--line);
}

.guide-card {
  display: flex;
  min-height: 430px;
  flex-direction: column;
  padding: clamp(34px, 5vw, 64px);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.guide-card > span,
.guide-rail > span,
.guide-cta > span {
  color: var(--signal);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.guide-card h2 {
  margin: 46px 0 18px;
  font-family: var(--display);
  font-size: clamp(34px, 4vw, 49px);
  font-weight: 500;
  letter-spacing: -0.04em;
  line-height: 1.02;
}

.guide-card h2 a {
  text-decoration: none;
}

.guide-card h2 a:hover {
  color: var(--signal);
}

.guide-card p {
  margin: 0 0 34px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.guide-card > div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: auto;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
}

.guide-card > div a:last-child {
  color: var(--muted);
}

.guide-index-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  padding-block: 62px 90px;
}

.guide-index-foot p {
  max-width: 650px;
  color: var(--muted);
  font-size: 14px;
}

.guide-layout {
  display: grid;
  grid-template-columns: 230px minmax(0, 720px);
  justify-content: space-between;
  gap: 80px;
  padding-block: 78px 118px;
}

.guide-rail {
  position: sticky;
  top: 110px;
  align-self: start;
  padding: 20px;
  background: rgba(255, 255, 255, 0.36);
  border: 1px solid var(--line);
  border-radius: 14px;
}

.guide-rail strong {
  display: block;
  margin-top: 13px;
  font-family: var(--display);
  font-size: 28px;
  font-weight: 500;
}

.guide-rail p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.guide-copy {
  min-width: 0;
}

.guide-copy h2 {
  margin: 58px 0 16px;
  font-family: var(--display);
  font-size: 36px;
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.08;
}

.guide-copy h2:first-of-type {
  margin-top: 48px;
}

.guide-copy h3 {
  margin: 30px 0 9px;
  font-size: 15px;
}

.guide-copy p,
.guide-copy li {
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.75;
}

.guide-copy ul,
.guide-copy ol {
  padding-left: 24px;
}

.guide-copy li + li {
  margin-top: 8px;
}

.guide-copy a:not(.button) {
  color: var(--signal-dark);
  font-weight: 650;
}

.guide-copy code {
  padding: 0.12em 0.35em;
  background: var(--paper-deep);
  border: 1px solid var(--line);
  border-radius: 5px;
  font-family: var(--mono);
  font-size: 0.88em;
}

.guide-lead {
  margin-top: 0;
  color: var(--ink) !important;
  font-family: var(--display);
  font-size: 25px !important;
  letter-spacing: -0.02em;
  line-height: 1.42 !important;
}

.guide-note {
  margin: 50px 0;
  padding: 24px 26px;
  background: rgba(185, 231, 114, 0.24);
  border: 1px solid rgba(95, 127, 45, 0.28);
  border-radius: 14px;
}

.guide-note strong {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.guide-note p {
  margin: 9px 0 0;
  font-size: 14px;
}

.guide-cta {
  margin-top: 82px;
  padding: clamp(28px, 5vw, 48px);
  color: var(--white);
  background: var(--ink);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.guide-cta h2 {
  margin: 24px 0 14px;
  color: var(--white);
}

.guide-cta p {
  color: rgba(255, 255, 255, 0.64);
  font-size: 14px;
}

.guide-cta .button {
  margin-top: 13px;
}

/* ============ Legal and utility pages ============ */
.legal-hero {
  padding-block: 90px 70px;
  border-bottom: 1px solid var(--line);
}

.legal-hero h1 {
  font-size: clamp(58px, 8vw, 104px);
}

.legal-hero p {
  max-width: 760px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 18px;
}

.legal-layout {
  display: grid;
  grid-template-columns: 250px minmax(0, 760px);
  justify-content: space-between;
  gap: 70px;
  padding-block: 74px 110px;
}

.legal-aside {
  position: sticky;
  top: 110px;
  align-self: start;
  padding: 18px;
  background: rgba(255, 255, 255, 0.35);
  border: 1px solid var(--line);
  border-radius: 12px;
}

.legal-aside strong {
  display: block;
  margin-bottom: 8px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.legal-aside p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}

.legal-copy h2 {
  margin: 54px 0 13px;
  font-family: var(--display);
  font-size: 31px;
  font-weight: 500;
  letter-spacing: -0.03em;
}

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

.legal-copy h3 {
  margin: 28px 0 10px;
  font-size: 15px;
}

.legal-copy p,
.legal-copy li {
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.7;
}

.legal-copy ul {
  padding-left: 20px;
}

.legal-table {
  width: 100%;
  margin: 20px 0;
  border-collapse: collapse;
  font-size: 12px;
}

.legal-table th,
.legal-table td {
  padding: 13px 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.legal-table th {
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.utility-page {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 40px 20px;
}

.utility-card {
  width: min(640px, 100%);
  padding: clamp(34px, 7vw, 70px);
  background: var(--paper-bright);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.utility-code {
  color: var(--signal);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
}

.utility-card h1 {
  margin: 34px 0 18px;
  font-family: var(--display);
  font-size: clamp(52px, 10vw, 88px);
  font-weight: 500;
  letter-spacing: -0.05em;
  line-height: 0.95;
}

.utility-card p {
  color: var(--muted);
}

/* ============ Motion ============ */
@media (prefers-reduced-motion: no-preference) {
  .hero-copy,
  .feature-hero-copy {
    animation: enter 650ms cubic-bezier(.2, .75, .25, 1) both;
  }

  .demo-card,
  .instrument-card {
    animation: enter-panel 780ms 120ms cubic-bezier(.2, .75, .25, 1) both;
  }

  @keyframes enter {
    from { opacity: 0; transform: translateY(22px); }
    to { opacity: 1; transform: translateY(0); }
  }

  @keyframes enter-panel {
    from { opacity: 0; transform: translateY(28px); }
  }
}

/* ============ Responsive ============ */
@media (max-width: 980px) {
  :root { --wrap: min(100% - 32px, 760px); }

  .desktop-nav,
  .nav-actions > .button {
    display: none;
  }

  .nav-shell {
    grid-template-columns: 1fr auto auto;
    gap: 9px;
  }

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

  .mobile-menu summary {
    display: grid;
    width: 38px;
    height: 38px;
    place-items: center;
    border: 1px solid var(--line);
    border-radius: 9px;
    cursor: pointer;
    font-family: var(--mono);
    font-size: 13px;
    list-style: none;
  }

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

  .mobile-menu nav {
    position: absolute;
    top: 46px;
    right: 0;
    display: grid;
    width: min(280px, calc(100vw - 32px));
    padding: 9px;
    background: var(--paper-bright);
    border: 1px solid var(--line-strong);
    border-radius: 12px;
    box-shadow: var(--shadow);
  }

  .mobile-menu nav a {
    padding: 11px 12px;
    border-radius: 7px;
    font-size: 13px;
    text-decoration: none;
  }

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

  .hero-grid,
  .feature-hero-grid {
    grid-template-columns: 1fr;
    gap: 56px;
    padding-block: 60px 80px;
  }

  .hero h1,
  .feature-hero h1 { max-width: 18ch; }

  .demo-card { width: min(560px, 100%); margin-inline: auto; }

  .section-head { grid-template-columns: 1fr; gap: 18px; }

  .stat-bento { grid-template-columns: 1fr 1fr; }
  .stat-bento .stat-card:nth-child(3) { grid-column: 1 / -1; min-height: 240px; }
  .impact-card { grid-template-columns: 1fr; }

  .how-steps { grid-template-columns: 1fr; }

  .kit-grid { grid-template-columns: 1fr 1fr; }
  .kit-lead { grid-template-columns: 1fr; align-items: start; }

  .privacy-lockup,
  .download-grid,
  .compatibility-grid {
    grid-template-columns: 1fr;
  }

  .pricing-shell { grid-template-columns: 1fr; }

  .footer-grid { grid-template-columns: 1.2fr 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }

  .legal-layout { grid-template-columns: 1fr; }
  .legal-aside { position: static; }

  .guide-layout { grid-template-columns: 1fr; gap: 36px; }
  .guide-rail { position: static; }
}

@media (max-width: 680px) {
  :root { --wrap: calc(100% - 24px); }

  .brand-meta { display: none; }

  .lang-toggle button { min-width: 30px; }

  .hero-grid,
  .feature-hero-grid { padding-block: 44px 60px; gap: 42px; }

  .hero h1 { font-size: clamp(48px, 16vw, 61px); }

  .feature-hero h1 { font-size: clamp(46px, 14vw, 66px); }

  .hero-lede,
  .feature-lede { font-size: 16px; }

  .hero-actions .button,
  .feature-actions .button,
  .download-actions .button { width: 100%; }

  .demo-card { width: 100%; padding: 10px; }
  .demo-stage { padding: 28px 20px 32px; min-height: 200px; }

  .section-title { font-size: clamp(34px, 10vw, 44px); }
  .section-lede { font-size: 15px; }
  .sell-head h2 { font-size: clamp(34px, 11vw, 48px); }

  .stat-bento { grid-template-columns: 1fr; }
  .stat-bento .stat-card:nth-child(3) { min-height: 300px; }
  .stat-card { min-height: 280px; }

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

  .privacy-statement { font-size: clamp(34px, 11vw, 46px); }

  .price-column { padding: 28px 20px; }
  .plan-grid { grid-template-columns: 1fr; }
  .plan-option { min-height: 132px; }

  .faq-list summary { font-size: 20px; }

  .download-grid { min-height: auto; padding-block: 64px; }
  .download-section h2 {
    font-size: clamp(48px, 16vw, 61px);
    overflow-wrap: break-word;
  }

  .release-ticket { transform: none; }

  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; }

  .breadcrumb { margin-bottom: 44px; }
  .instrument-card { min-height: 450px; padding: 14px; }
  .instrument-body { min-height: 370px; }
  .typing-demo .wrong-line,
  .typing-demo .right-line { font-size: 39px; }

  .compatibility-copy { grid-template-columns: 1fr; }

  .legal-hero { padding-block: 66px 54px; }
  .legal-layout { padding-block: 52px 76px; }
  .legal-table { display: block; overflow-x: auto; }

  .guide-index-hero,
  .guide-hero { padding-block: 64px 54px; }
  .guide-index-hero h1,
  .guide-hero h1 { font-size: clamp(48px, 14vw, 68px); }
  .guide-index { grid-template-columns: 1fr; }
  .guide-card { min-height: 360px; }
  .guide-index-foot { align-items: stretch; flex-direction: column; }
  .guide-index-foot .button { width: 100%; }
  .guide-layout { padding-block: 50px 78px; }
  .guide-copy p,
  .guide-copy li { font-size: 15px; }
  .guide-lead { font-size: 22px !important; }
  .guide-cta .button { width: 100%; }
}

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