:root {
  --ink: #111111;
  --paper: #d7d7d3;
  --panel: #fbfaf5;
  --muted: #6d7069;
  --line: #111111;
  --soft: #d8d8d1;
  --gap: clamp(18px, 3vw, 46px);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.55;
  overflow-x: hidden;
}

img {
  display: block;
  width: 100%;
  height: auto;
}

a {
  color: inherit;
}

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

h1,
h2 {
  letter-spacing: -.055em;
  line-height: 1.02;
  overflow-wrap: anywhere;
}

h1 {
  margin-bottom: 0;
  font-size: clamp(42px, 7vw, 86px);
  max-width: 980px;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(32px, 5.4vw, 68px);
}

h3 {
  margin-bottom: 0;
  font-size: clamp(22px, 3vw, 34px);
  letter-spacing: -.04em;
}

.site-frame {
  width: min(1180px, calc(100% - 32px));
  margin-inline: auto;
}

.top-plate {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(244, 242, 235, .94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.header-line {
  min-height: 76px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 20px;
}

.word-token {
  text-decoration: none;
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 820;
  letter-spacing: -.055em;
}

.nav-capsule {
  justify-self: end;
  display: grid;
  grid-auto-flow: column;
  gap: 10px;
}

.nav-capsule a {
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: 12px;
  border-bottom: 1px solid transparent;
  padding: 8px 0;
}

.nav-capsule a:hover,
.nav-capsule a:focus-visible {
  border-color: var(--line);
  outline: none;
}

.nav-check {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
}

.nav-key {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: 1px solid var(--line);
  cursor: pointer;
  place-items: center;
  justify-self: end;
}

.nav-key span {
  display: block;
  width: 20px;
  height: 1px;
  margin: 4px 0;
  background: var(--ink);
}

.app-intro {
  padding: clamp(54px, 9vw, 116px) 0 clamp(38px, 7vw, 86px);
  display: grid;
  grid-template-columns: 132px minmax(0, 1fr);
  gap: clamp(22px, 5vw, 64px);
  align-items: start;
}

.icon-cell {
  border: 1px solid var(--line);
  background: var(--panel);
  padding: 14px;
}

.intro-copy {
  min-width: 0;
  display: grid;
  gap: 24px;
}

.mini-label {
  margin: 0;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .24em;
  font-size: 12px;
}

.intro-note {
  max-width: 760px;
  color: var(--muted);
  font-size: clamp(17px, 2vw, 22px);
}

.intro-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, max-content));
  gap: 12px;
}

.line-action,
.store-cell {
  display: inline-grid;
  place-items: center;
  min-height: 50px;
  padding: 0 20px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  text-decoration: none;
  font-weight: 780;
}

.line-action:hover,
.line-action:focus-visible,
.store-cell:hover,
.store-cell:focus-visible {
  background: var(--ink);
  color: var(--paper);
  outline: none;
}

.pale-action {
  color: var(--muted);
}

.showcase-band {
  padding-bottom: clamp(72px, 10vw, 136px);
}

.showcase-grid {
  display: grid;
}

.wide-device,
.route-image {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
}

.inside-sheet,
.route-panel,
.review-strip,
.faq-sheet,
.contact-sheet {
  padding: clamp(76px, 11vw, 142px) 0;
  border-top: 1px solid var(--line);
}

.inside-sheet {
  display: grid;
  grid-template-columns: .82fr 1.18fr;
  gap: var(--gap);
  align-items: start;
}

.sheet-title,
.faq-title,
.review-title {
  display: grid;
  gap: 18px;
  position: sticky;
  top: 110px;
}

.spec-rows {
  display: grid;
  border-top: 1px solid var(--line);
}

.spec-row {
  display: grid;
  grid-template-columns: 70px minmax(0, .56fr) minmax(0, .44fr);
  gap: 20px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
  align-items: start;
}

.spec-row span {
  color: var(--muted);
  letter-spacing: .18em;
  font-size: 12px;
}

.spec-row p,
.route-copy p,
.review-lines p,
.data-line p,
.contact-text p,
.download-copy p {
  color: var(--muted);
}

.spec-row p {
  margin-bottom: 0;
}

.route-panel {
  display: grid;
  grid-template-columns: .7fr 1.3fr;
  gap: var(--gap);
  align-items: center;
}

.route-copy {
  display: grid;
  gap: 22px;
}

.download-stage {
  color: var(--paper);
  background: var(--ink);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.download-grid {
  padding: clamp(68px, 9vw, 120px) 0;
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: var(--gap);
  align-items: center;
}

.download-copy {
  display: grid;
  gap: 20px;
}

.store-stack {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.store-cell {
  min-height: 140px;
  color: var(--paper);
  border-color: var(--paper);
  align-content: center;
  gap: 10px;
  justify-items: start;
  padding: 26px;
}

.store-cell span {
  color: #bfc1bb;
  text-transform: uppercase;
  letter-spacing: .18em;
  font-size: 12px;
}

.store-cell:hover {
  background: var(--paper);
  color: var(--ink);
}

.review-strip {
  display: grid;
  grid-template-columns: .62fr 1.38fr;
  gap: var(--gap);
  align-items: start;
}

.review-lines {
  display: grid;
  border-top: 1px solid var(--line);
}

.review-lines article {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 160px;
  gap: 20px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.review-lines p {
  margin-bottom: 0;
  font-size: clamp(18px, 2.2vw, 24px);
}

.faq-sheet {
  max-width: 980px;
  display: grid;
  gap: 34px;
}

.faq-title {
  position: static;
  text-align: center;
  justify-items: center;
}

.faq-title h2 {
  max-width: 720px;
}

.faq-column {
  display: grid;
  gap: 10px;
}

.data-line {
  border: 1px solid var(--line);
  background: var(--panel);
}

.data-line summary {
  padding: 22px;
  cursor: pointer;
  font-weight: 780;
  letter-spacing: -.02em;
}

.data-line p {
  margin: 0;
  padding: 0 22px 22px;
}

.contact-sheet {
  display: grid;
  grid-template-columns: .86fr 1.14fr;
  gap: var(--gap);
  align-items: start;
}

.contact-text {
  display: grid;
  gap: 20px;
}

.mail-tag {
  display: inline-grid;
  width: fit-content;
  padding: 12px 16px;
  border: 1px solid var(--line);
  color: var(--ink) !important;
  font-weight: 780;
}

.signal-form {
  display: grid;
  gap: 12px;
  border: 1px solid var(--line);
  background: var(--panel);
  padding: clamp(24px, 4vw, 46px);
}

.signal-form label {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .16em;
  font-size: 12px;
}

.signal-form input,
.signal-form textarea {
  width: 100%;
  padding: 14px 15px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  font: inherit;
}

.signal-form input:focus,
.signal-form textarea:focus {
  outline: 2px solid var(--line);
  outline-offset: 2px;
}

.form-action {
  width: fit-content;
  margin-top: 6px;
}

.service-zone {
  background: var(--ink);
  color: #fff;
}

.footer-grid {
  min-height: 190px;
  display: grid;
  place-items: center;
  gap: 24px;
  text-align: center;
}

.footer-grid p {
  margin: 0;
}

.service-zone ul {
  padding: 0;
}

.service-zone a:hover,
.service-zone a:focus-visible {
  text-decoration: underline !important;
  outline: none;
}

@media (max-width: 920px) {
  .header-line {
    grid-template-columns: auto auto;
  }

  .nav-key {
    display: grid;
  }

  .nav-capsule {
    grid-column: 1 / -1;
    justify-self: stretch;
    display: none;
    grid-auto-flow: row;
    grid-template-columns: 1fr;
    gap: 0;
    padding-bottom: 16px;
  }

  .nav-check:checked~.nav-capsule {
    display: grid;
  }

  .nav-capsule a {
    border-top: 1px solid var(--line);
    border-bottom: 0;
    padding: 14px 0;
  }

  .inside-sheet,
  .route-panel,
  .download-grid,
  .review-strip,
  .contact-sheet {
    grid-template-columns: 1fr;
  }

  .sheet-title,
  .review-title {
    position: static;
  }

  .spec-row {
    grid-template-columns: 70px minmax(0, 1fr);
  }

  .spec-row p {
    grid-column: 2;
  }
}

@media (max-width: 680px) {
  .site-frame {
    width: min(100% - 24px, 1180px);
  }

  .app-intro {
    grid-template-columns: 1fr;
  }

  .icon-cell {
    width: 112px;
  }

  .intro-actions,
  .store-stack {
    grid-template-columns: 1fr;
  }

  .line-action,
  .form-action {
    width: 100%;
  }

  .spec-row,
  .review-lines article {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .spec-row p {
    grid-column: auto;
  }
}