:root {
  --bg: #f6f7f4;
  --surface: #ffffff;
  --ink: #15201b;
  --muted: #5b6862;
  --line: #dde2dc;
  --accent: #2aa86b;      /* зелёный «онлайн»: бот работает */
  --accent-ink: #ffffff;
  --dark: #0f1a15;
  --tg: #e7f1fb;          /* фон входящих сообщений */
  --font-display: "Unbounded", system-ui, sans-serif;
  --font-body: "Onest", system-ui, -apple-system, "Segoe UI", sans-serif;
  --radius: 14px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 17px/1.6 var(--font-body);
}
a { color: inherit; }
h1, h2, h3 { font-family: var(--font-display); line-height: 1.15; text-wrap: balance; margin: 0; }
h1 { font-size: clamp(30px, 5vw, 52px); font-weight: 700; }
h2 { font-size: clamp(26px, 3.5vw, 38px); font-weight: 700; margin-bottom: 36px; }
h3 { font-size: 20px; font-weight: 500; }
p { margin: 0; }

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding-left: max(20px, env(safe-area-inset-left));
  padding-right: max(20px, env(safe-area-inset-right));
}

/* Header */
.header {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header__row { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { font: 700 22px var(--font-display); text-decoration: none; }
.logo span { color: var(--accent); }
.nav { display: flex; gap: 28px; align-items: center; font-weight: 500; }
.nav a { text-decoration: none; }
.nav a:hover { color: var(--accent); }
.nav__cta { padding: 8px 16px; border: 1.5px solid var(--ink); border-radius: 999px; }

/* Buttons */
.btn {
  display: inline-block; padding: 14px 26px; border-radius: 999px;
  font: 600 16px var(--font-body); text-decoration: none; cursor: pointer; border: 0;
  transition: transform .15s ease, background .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:focus-visible, .nav a:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--accent); outline-offset: 2px;
}
.btn--primary { background: var(--accent); color: var(--accent-ink); }
.btn--ghost { background: transparent; border: 1.5px solid var(--ink); }

/* Hero */
.hero { padding-block: 72px 88px; }
.hero__grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center; }
.hero__text { display: flex; flex-direction: column; gap: 22px; }
.eyebrow { text-transform: uppercase; letter-spacing: .08em; font-size: 13px; font-weight: 600; color: var(--accent); }
.lead { font-size: 19px; color: var(--muted); max-width: 34em; }
.hero__actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 6px; }
.hero__note { font-size: 14px; color: var(--muted); margin-top: -8px; }

/* Chat mockup */
.chat {
  background: var(--surface); border: 1px solid var(--line); border-radius: 22px;
  padding: 18px; display: flex; flex-direction: column; gap: 10px;
  box-shadow: 0 20px 50px -24px rgba(15, 26, 21, .25);
}
.chat__head { display: flex; gap: 10px; align-items: center; padding-bottom: 12px; border-bottom: 1px solid var(--line); }
.chat__head small { display: block; color: var(--accent); font-size: 13px; }
.chat__avatar {
  width: 38px; height: 38px; border-radius: 50%; display: grid; place-items: center;
  background: var(--ink); color: var(--bg); font: 700 16px var(--font-display);
}
.msg { max-width: 85%; padding: 10px 14px; border-radius: 16px; font-size: 15px; line-height: 1.4; }
.msg--in { background: var(--tg); align-self: flex-start; border-bottom-left-radius: 4px; }
.msg--out { background: var(--ink); color: var(--bg); align-self: flex-end; border-bottom-right-radius: 4px; }
.chat__ticket {
  margin-top: 6px; padding: 12px 14px; border: 1.5px dashed var(--accent); border-radius: 12px;
  display: flex; flex-direction: column; gap: 2px;
}
.chat__ticket small { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .06em; }

/* Sections */
.section { padding-block: 88px; }
.section--alt { background: var(--surface); border-block: 1px solid var(--line); }
.section--dark { background: var(--dark); color: #eef3ef; }
.tag { font-size: 13px; font-weight: 600; color: var(--accent); text-transform: uppercase; letter-spacing: .06em; }

.services { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.service {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px; display: flex; flex-direction: column; gap: 14px;
}
.service p:not(.tag) { color: var(--muted); }
.service ul { margin: 0; padding-left: 18px; display: grid; gap: 4px; }

.cases { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.case { padding: 28px; border-radius: var(--radius); background: var(--bg); display: flex; flex-direction: column; gap: 14px; }
.case p:not(.tag):not(.case__stack) { color: var(--muted); }
.case__stack { margin-top: auto; padding-top: 14px; border-top: 1px solid var(--line); font-size: 14px; font-weight: 500; }

.steps { list-style: none; counter-reset: s; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.steps li { counter-increment: s; display: flex; flex-direction: column; gap: 6px; padding-top: 18px; border-top: 2px solid var(--ink); }
.steps li::before { content: counter(s); font: 700 14px var(--font-display); color: var(--accent); }
.steps b { font-size: 18px; }
.steps span { color: var(--muted); }

/* Contact */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.contact > div { display: flex; flex-direction: column; gap: 14px; }
.contact h2 { margin-bottom: 0; }
.contact p { color: #b7c4bc; }
.team { margin-top: 12px; display: flex; flex-direction: column; gap: 10px; }
.team__title { text-transform: uppercase; letter-spacing: .08em; font-size: 13px; font-weight: 600; color: var(--accent) !important; }
.team__list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.team__list a {
  display: inline-flex; align-items: center; gap: 10px;
  color: #eef3ef; text-decoration: none; font-weight: 500; font-size: 18px;
}
.team__list a::before {
  content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--accent);
}
.team__list a:hover { color: var(--accent); }
.form { display: flex; flex-direction: column; gap: 16px; }
.form label { display: flex; flex-direction: column; gap: 6px; font-size: 14px; font-weight: 500; }
.form input, .form textarea {
  font: 400 16px var(--font-body); padding: 13px 14px; border-radius: 10px;
  border: 1px solid #2f3f37; background: #17241e; color: #eef3ef; resize: vertical;
}
.form input.invalid { border-color: #e46a5a; }
.form .btn { align-self: flex-start; }
.form__status { min-height: 1.5em; font-size: 15px; }
.form__status.ok { color: var(--accent); }
.form__status.err { color: #f08d7f; }
.hp { position: absolute; left: -9999px; }

.footer { padding-block: 28px; background: var(--dark); color: #8a9a91; border-top: 1px solid #22312a; }
.footer__row { display: flex; justify-content: space-between; gap: 16px; }

/* Mobile */
@media (max-width: 860px) {
  .hero__grid, .contact, .cases { grid-template-columns: 1fr; }
  .services { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .nav a:not(.nav__cta) { display: none; }
  .hero { padding-block: 40px 64px; }
  .section { padding-block: 64px; }
}
@media (max-width: 480px) {
  .steps { grid-template-columns: 1fr; }
}

/* Команда в подвале */
.footer__row { align-items: center; flex-wrap: wrap; }
.footer__team { display: flex; flex-direction: column; gap: 4px; }
.footer { font-size: 14px; line-height: 1.5; padding-block: 12px; }
.footer__team a { color: inherit; text-decoration: none; }
.footer__team a:hover { color: var(--accent); }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn { transition: none; }
}

/* Блок «Почему это выгодно» */
.compare { margin-top: 40px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.compare__title { margin-bottom: 20px; }
.compare__scroll { overflow-x: auto; }
.compare table { width: 100%; border-collapse: collapse; font-size: 16px; }
.compare th, .compare td { text-align: left; padding: 14px 16px; border-bottom: 1px solid var(--line); vertical-align: top; }
.compare tbody tr:last-child th, .compare tbody tr:last-child td { border-bottom: 0; }
.compare thead th { font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.compare tbody th { font-weight: 600; }
.compare td { color: var(--muted); }
.compare td:last-child { color: var(--ink); font-weight: 500; background: color-mix(in srgb, var(--accent) 8%, transparent); }
.compare thead th:last-child { color: var(--accent); background: color-mix(in srgb, var(--accent) 8%, transparent); }
@media (max-width: 600px) {
  .compare { padding: 20px 12px; }
  .compare table { font-size: 14px; }
  .compare th, .compare td { padding: 12px 8px; }
  .compare table { table-layout: fixed; }
  .compare thead th { text-transform: none; letter-spacing: 0; font-size: 13px; }
  .compare th:first-child { width: 30%; }
}

/* Первый экран: шестерёнки справа */
.hero__grid { grid-template-columns: minmax(0, 1fr) minmax(0, 400px); gap: clamp(32px, 5vw, 72px); }
.hero h1 { font-size: clamp(28px, 3.8vw, 48px); hyphens: auto; }
.gears-card { justify-self: end; width: 100%; max-width: 400px; }
.gears-card svg { display: block; width: 100%; height: auto; }
@media (max-width: 860px) {
  .hero__grid { grid-template-columns: 1fr; }
  .gears-card { justify-self: center; max-width: 380px; }
}
.hero { overflow-x: clip; }
@media (min-width: 861px) {
  .gears-card {
    width: clamp(400px, calc(50vw - 160px), 560px);
    max-width: none;
    transform: translate(clamp(0px, calc(50vw - 560px), 220px), -70px);
  }
}