:root {
  --paper: #faf7f2;
  --paper-2: #f1ece3;
  --ink: #16161a;
  --ink-2: #2b2b31;
  --accent: #e5383b;
  --accent-soft: #fbe3e3;
  --ai: #6c4cf1;
  --muted: #6b6b73;
  --line: #d9d4cb;
  --shadow: 6px 6px 0 var(--ink);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

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

.display {
  font-family: 'Anton', Impact, 'Arial Narrow Bold', sans-serif;
  font-weight: 400;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  line-height: 1;
}

.wrap {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 24px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--paper);
  border-bottom: 3px solid var(--ink);
}

.topbar .wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  text-decoration: none;
}

.brand img {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  border: 2px solid var(--ink);
}

.brand span {
  font-size: 22px;
  letter-spacing: 0.06em;
}

.topbar nav {
  margin-left: auto;
  display: flex;
  gap: 22px;
}

.topbar nav a {
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
}

.topbar nav a:hover,
.topbar nav a[aria-current] {
  color: var(--accent);
}

.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 3px solid var(--ink);
  background: radial-gradient(var(--line) 1.4px, transparent 1.6px) 0 0 / 14px 14px, var(--paper);
}

.hero .wrap {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
  padding-top: 72px;
  padding-bottom: 72px;
}

.kicker {
  display: inline-block;
  background: var(--ink);
  color: var(--paper);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 6px 12px;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(48px, 7vw, 88px);
  margin: 0 0 18px;
}

.hero h1 em {
  font-style: normal;
  color: var(--accent);
}

.hero p {
  font-size: 20px;
  color: var(--ink-2);
  margin: 0 0 28px;
  max-width: 520px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 17px;
  padding: 14px 24px;
  border: 3px solid var(--ink);
  border-radius: 14px;
  box-shadow: var(--shadow);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}

.button:hover {
  transform: translate(-2px, -2px);
  box-shadow: 8px 8px 0 var(--ink);
}

.button.ghost {
  background: var(--paper);
  color: var(--ink);
}

.button svg {
  width: 22px;
  height: 22px;
}

.phones {
  position: relative;
  height: 560px;
}

.phone {
  position: absolute;
  width: 250px;
  border: 4px solid var(--ink);
  border-radius: 30px;
  overflow: hidden;
  background: #fff;
  box-shadow: 10px 10px 0 var(--ink);
}

.phone.back {
  left: 0;
  top: 60px;
  transform: rotate(-6deg);
}

.phone.front {
  right: 10px;
  top: 0;
  transform: rotate(4deg);
}

section {
  padding: 72px 0;
}

section + section {
  border-top: 3px solid var(--ink);
}

.section-title {
  font-size: clamp(34px, 4.5vw, 52px);
  margin: 0 0 12px;
}

.section-lead {
  font-size: 18px;
  color: var(--muted);
  margin: 0 0 36px;
  max-width: 640px;
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 22px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.features li {
  position: relative;
  border: 3px solid var(--ink);
  border-radius: 18px;
  padding: 24px 24px 24px 24px;
  background: #fff;
  box-shadow: var(--shadow);
}

.features .num {
  font-size: 34px;
  color: var(--accent);
  margin-bottom: 8px;
}

.features li.ai .num {
  color: var(--ai);
}

.features h3 {
  margin: 0 0 8px;
  font-size: 20px;
}

.features p {
  margin: 0;
  color: var(--ink-2);
  font-size: 16px;
}

.gallery {
  background: var(--ink);
  color: var(--paper);
}

.gallery .section-title,
.gallery .section-lead {
  color: var(--paper);
}

.strip {
  display: flex;
  gap: 22px;
  overflow-x: auto;
  padding: 10px 4px 24px;
  scroll-snap-type: x mandatory;
}

.strip figure {
  flex: 0 0 240px;
  margin: 0;
  scroll-snap-align: start;
}

.strip img {
  border: 3px solid var(--paper);
  border-radius: 22px;
  box-shadow: 6px 6px 0 var(--accent);
}

.strip figcaption {
  margin-top: 14px;
  font-weight: 600;
  font-size: 15px;
  text-align: center;
}

.private {
  background: var(--accent-soft);
}

.private .wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.bubble {
  position: relative;
  background: #fff;
  border: 3px solid var(--ink);
  border-radius: 28px;
  padding: 28px 30px;
  font-size: 22px;
  line-height: 1.45;
  box-shadow: var(--shadow);
}

.bubble::after {
  content: '';
  position: absolute;
  left: 52px;
  bottom: -26px;
  width: 0;
  height: 0;
  border-left: 18px solid transparent;
  border-right: 18px solid transparent;
  border-top: 26px solid var(--ink);
}

.bubble::before {
  content: '';
  position: absolute;
  left: 56px;
  bottom: -19px;
  width: 0;
  height: 0;
  z-index: 1;
  border-left: 14px solid transparent;
  border-right: 14px solid transparent;
  border-top: 20px solid #fff;
}

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

.checks li {
  display: flex;
  gap: 12px;
  font-size: 17px;
  margin-bottom: 12px;
}

.checks li::before {
  content: '✓';
  flex: 0 0 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--ink);
  color: var(--paper);
  border-radius: 50%;
  font-size: 14px;
  font-weight: 700;
}

footer {
  border-top: 3px solid var(--ink);
  background: var(--paper-2);
  color: var(--muted);
  font-size: 14px;
}

footer .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding-top: 22px;
  padding-bottom: 22px;
}

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

.doc-hero {
  border-bottom: 3px solid var(--ink);
  background: radial-gradient(var(--line) 1.4px, transparent 1.6px) 0 0 / 14px 14px, var(--paper);
}

.doc-hero .wrap {
  padding-top: 56px;
  padding-bottom: 48px;
}

.doc-hero h1 {
  font-size: clamp(42px, 6vw, 72px);
  margin: 0 0 10px;
}

.doc-hero .meta {
  color: var(--muted);
  font-size: 15px;
  margin: 0;
}

.doc {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 40px;
  padding-top: 48px;
  padding-bottom: 80px;
}

.toc {
  position: sticky;
  top: 88px;
  align-self: start;
  border: 3px solid var(--ink);
  border-radius: 16px;
  background: #fff;
  padding: 18px 18px 10px;
  box-shadow: var(--shadow);
}

.toc strong {
  display: block;
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.toc ol {
  margin: 0;
  padding-left: 20px;
  font-size: 14px;
}

.toc li {
  margin-bottom: 8px;
}

.toc a {
  color: var(--ink);
  text-decoration: none;
}

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

.article {
  background: #fff;
  border: 3px solid var(--ink);
  border-radius: 20px;
  padding: 36px 40px;
  box-shadow: var(--shadow);
}

.article .summary {
  font-size: 19px;
  background: var(--accent-soft);
  border-left: 6px solid var(--accent);
  padding: 16px 20px;
  border-radius: 0 12px 12px 0;
  margin: 0 0 28px;
}

.article h2 {
  font-size: 26px;
  margin: 36px 0 10px;
  scroll-margin-top: 90px;
}

.article h2 span {
  color: var(--accent);
  margin-right: 10px;
}

.article p,
.article li {
  font-size: 17px;
}

.article ul {
  padding-left: 22px;
}

.article li {
  margin-bottom: 6px;
}

@media (max-width: 860px) {
  .hero .wrap {
    grid-template-columns: 1fr;
    padding-top: 48px;
    padding-bottom: 48px;
  }

  .phones {
    height: 460px;
    max-width: 440px;
    margin: 0 auto;
    width: 100%;
  }

  .phone {
    width: 200px;
  }

  .private .wrap,
  .doc {
    grid-template-columns: 1fr;
  }

  .toc {
    position: static;
  }

  .article {
    padding: 24px 20px;
  }
}

@media (max-width: 520px) {
  .wrap {
    padding: 0 16px;
  }

  .topbar nav {
    gap: 14px;
  }

  .brand span {
    display: none;
  }

  .phones {
    height: 400px;
  }

  .phone {
    width: 170px;
  }

  .bubble {
    font-size: 19px;
    padding: 22px;
  }

  section {
    padding: 48px 0;
  }
}