:root {
  --brand: #c62f45;
  --brand-2: #d23f3f;
  --ink: #16131a;
  --muted: #5d5866;
  --line: #ebe7ee;
  --soft: #fff5f3;
  --bg: #fffdfc;
  --radius: 18px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

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

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 20px; }

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 253, 252, 0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.nav .wrap { display: flex; align-items: center; gap: 24px; height: 64px; }

.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 19px; text-decoration: none; }

.brand img { width: 34px; height: 25px; }

.nav-links { display: none; gap: 24px; margin-left: auto; font-size: 15px; }

.nav-links a { text-decoration: none; color: var(--muted); }

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

.nav .btn { margin-left: auto; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover { transform: translateY(-1px); }

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--brand-2), var(--brand));
  box-shadow: 0 8px 24px rgba(235, 72, 92, 0.28);
}

.btn-ghost { background: #fff; border-color: var(--line); }

.btn-sm { padding: 9px 16px; font-size: 14px; }

.hero { padding: 56px 0 72px; background: radial-gradient(1000px 480px at 85% 0%, #ffe6e1 0%, rgba(255, 230, 225, 0) 70%); }

.hero .wrap { display: grid; gap: 48px; align-items: center; }

.eyebrow {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--soft);
  color: var(--brand);
  font-size: 13px;
  font-weight: 600;
}

h1 { font-size: clamp(36px, 7vw, 60px); line-height: 1.06; letter-spacing: -0.03em; margin: 18px 0; }

h1 span, h2 span { background: linear-gradient(135deg, var(--brand-2), var(--brand)); -webkit-background-clip: text; background-clip: text; color: transparent; }

h2 { font-size: clamp(28px, 4.6vw, 42px); line-height: 1.12; letter-spacing: -0.02em; margin: 12px 0 16px; }

h3 { font-size: 20px; margin: 0 0 8px; letter-spacing: -0.01em; }

.lead { font-size: 18px; color: var(--muted); max-width: 560px; }

.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 28px; padding: 0; list-style: none; }

.tags li { font-size: 13px; padding: 6px 12px; border: 1px solid var(--line); border-radius: 999px; background: #fff; color: var(--muted); }

.phone {
  max-width: 360px;
  margin: 0 auto;
  width: 100%;
  border-radius: 34px;
  padding: 14px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 30px 80px rgba(22, 19, 26, 0.12);
}

.phone-head { display: flex; align-items: center; gap: 10px; padding: 8px 6px 14px; border-bottom: 1px solid var(--line); }

.avatar { width: 36px; height: 36px; border-radius: 50%; background: linear-gradient(135deg, #feda75, #d62976 60%, #4f5bd5); }

.phone-head b { display: block; font-size: 14px; }

.phone-head small { color: var(--muted); font-size: 12px; }

.chat { display: flex; flex-direction: column; gap: 10px; padding: 16px 4px 6px; }

.msg { max-width: 82%; padding: 10px 14px; border-radius: 18px; font-size: 14px; line-height: 1.45; }

.msg.in { background: #f1eff3; align-self: flex-start; border-bottom-left-radius: 6px; }

.msg.out { background: linear-gradient(135deg, var(--brand-2), var(--brand)); color: #fff; align-self: flex-end; border-bottom-right-radius: 6px; }

.product { align-self: flex-end; width: 82%; border: 1px solid var(--line); border-radius: 16px; overflow: hidden; font-size: 13px; }

.product .ph { height: 92px; background: linear-gradient(135deg, #ffd9cf, #f7b2bd); }

.product div:last-child { padding: 10px 12px; display: flex; justify-content: space-between; gap: 8px; }

.product em { font-style: normal; color: var(--brand); font-weight: 700; }

.bot-tag { align-self: flex-end; font-size: 11px; color: var(--muted); }

section { padding: 72px 0; }

.center { text-align: center; }

.center .lead { margin: 0 auto; }

.channels { padding: 28px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #fff; }

.channels .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 14px 36px; color: var(--muted); font-size: 15px; }

.channels span { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; color: var(--ink); }

.channels img { width: 22px; height: 22px; }

.grid-3 { display: grid; gap: 18px; margin-top: 40px; }

.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }

.card p { margin: 0; color: var(--muted); }

.num { display: inline-grid; place-items: center; width: 36px; height: 36px; border-radius: 12px; background: var(--soft); color: var(--brand); font-weight: 700; margin-bottom: 14px; }

.feature { display: grid; gap: 32px; align-items: center; padding: 36px 0; }

.feature ul { padding: 0; margin: 18px 0 0; list-style: none; display: grid; gap: 10px; }

.feature li { padding-left: 28px; position: relative; color: var(--muted); }

.feature li::before { content: ""; position: absolute; left: 0; top: 6px; width: 16px; height: 16px; border-radius: 50%; background: var(--soft); box-shadow: inset 0 0 0 5px var(--brand); }

.panel { background: #fff; border: 1px solid var(--line); border-radius: 24px; padding: 22px; box-shadow: 0 20px 60px rgba(22, 19, 26, 0.07); }

.row { display: flex; align-items: center; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 14px; }

.row:last-child { border-bottom: 0; }

.row b { flex: 1; font-weight: 600; }

.pill { font-size: 12px; padding: 4px 10px; border-radius: 999px; background: #eefaf2; color: #1d7a43; font-weight: 600; }

.pill.warm { background: var(--soft); color: var(--brand); }

.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--brand); flex: none; }

.closing { margin: 0 20px 72px; border-radius: 28px; padding: 56px 24px; text-align: center; color: #fff; background: linear-gradient(135deg, #2a1d2e, #16131a); }

.closing .lead { color: #cfc8d4; margin: 0 auto; }

.closing .cta-row { justify-content: center; }

.closing .btn-ghost { background: transparent; color: #fff; border-color: rgba(255, 255, 255, 0.3); }

footer { border-top: 1px solid var(--line); padding: 36px 0; font-size: 14px; color: var(--muted); }

footer .wrap { display: flex; flex-wrap: wrap; gap: 16px 28px; align-items: center; }

footer nav { display: flex; flex-wrap: wrap; gap: 20px; margin-left: auto; }

footer a { text-decoration: none; }

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

.doc { max-width: 760px; padding: 48px 20px 80px; margin: 0 auto; }

.doc h1 { font-size: clamp(32px, 6vw, 44px); }

.doc h2 { font-size: 22px; margin-top: 36px; }

.doc p, .doc li { color: #3c3842; }

.doc .updated { color: var(--muted); font-size: 14px; }

.doc .box { background: var(--soft); border-radius: var(--radius); padding: 20px 22px; margin: 24px 0; }

:focus-visible { outline: 3px solid var(--brand-2); outline-offset: 2px; }

@media (min-width: 860px) {
  .nav-links { display: flex; }
  .nav .btn { margin-left: 0; }
  .hero { padding: 88px 0 104px; }
  .hero .wrap { grid-template-columns: 1.1fr 0.9fr; }
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .feature { grid-template-columns: 1fr 1fr; gap: 64px; }
  .feature.flip > :first-child { order: 2; }
  section { padding: 96px 0; }
  .closing { max-width: 1080px; margin: 0 auto 96px; padding: 72px 40px; }
}