/* Лендинг: спокойный деловой стиль, как у самой системы */
:root {
  --ink: #15191e; --muted: #5d6670; --line: #e3e6ea; --page: #ffffff; --soft: #f5f7f6; --accent: #11694f; --accent-2: #0c5640; --accent-soft: #e6f1ed;
  --radius: 10px; --wrap: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body { margin: 0; font-family: "IBM Plex Sans", -apple-system, "Segoe UI", Roboto, Arial, sans-serif; color: var(--ink); background: var(--page);
  font-size: 17px; line-height: 1.6; -webkit-font-smoothing: antialiased; font-feature-settings: "tnum" 1; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -0.015em; margin: 0; }
h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); font-weight: 600; margin-bottom: .6rem; }
h3 { font-size: 1.15rem; font-weight: 600; }
p { margin: 0 0 1rem; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.wrap.narrow { max-width: 820px; }
.sub { color: var(--muted); max-width: 680px; margin-bottom: 2.5rem; }
section { padding: 88px 0; }

.btn { display: inline-block; background: var(--accent); color: #fff; border: 1px solid var(--accent); padding: .6rem 1.1rem; border-radius: 8px; font-weight: 500; font-size: .95rem;
  cursor: pointer; font-family: inherit; }
.btn:hover { background: var(--accent-2); text-decoration: none; }
.btn.big { padding: .85rem 1.4rem; font-size: 1rem; }
.btn.ghost { background: transparent; color: var(--ink); border-color: #c9ced4; }
.btn.ghost:hover { background: var(--soft); }

/* Шапка */
.nav { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.nav-in { display: flex; align-items: center; gap: 2rem; height: 64px; }
.logo { font-weight: 700; color: var(--ink); font-size: 1.15rem; letter-spacing: -0.02em; }
.logo:hover { text-decoration: none; }
.links { display: flex; gap: 1.6rem; flex: 1; }
.links a { color: var(--muted); font-size: .95rem; }
.links a:hover { color: var(--ink); text-decoration: none; }
.nav-cta { display: flex; align-items: center; gap: 1.2rem; margin-left: auto; }
.login { color: var(--ink); font-size: .95rem; }

/* Первый экран */
.hero { padding: 72px 0 80px; background: linear-gradient(180deg, var(--soft), #fff 85%); }
.hero-in { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); gap: 56px; align-items: center; }
.eyebrow { color: var(--accent); font-weight: 600; font-size: .9rem; letter-spacing: .02em; margin-bottom: 1rem; }
h1 { font-size: clamp(2.1rem, 4.2vw, 3.2rem); font-weight: 700; margin-bottom: 1.25rem; }
.lead { font-size: 1.12rem; color: #39414a; margin-bottom: 2rem; }
.hero-cta { display: flex; gap: .8rem; flex-wrap: wrap; margin-bottom: 2rem; }
.facts { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; color: var(--muted); font-size: .9rem; }
.facts li::before { content: "✓"; color: var(--accent); font-weight: 700; margin-right: .45rem; }
.frame { margin: 0; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); background: #fff;
  box-shadow: 0 1px 2px rgba(16,24,40,.04), 0 18px 40px -12px rgba(16,24,40,.18); }
.frame::before { content: ""; display: block; height: 26px; border-bottom: 1px solid var(--line);
  background: radial-gradient(circle at 14px 13px, #e4e6e9 4px, transparent 5px), radial-gradient(circle at 30px 13px, #e4e6e9 4px, transparent 5px),
  radial-gradient(circle at 46px 13px, #e4e6e9 4px, transparent 5px), #fafbfb; }
.frame img { display: block; width: 100%; height: auto; }

/* Боль */
.pain { background: #fff; }
.cards4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 2rem; }
.pc { border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.pc b { display: block; margin-bottom: .5rem; font-size: 1.05rem; }
.pc p { color: var(--muted); font-size: .95rem; margin: 0; }

/* Шаги */
.how { background: var(--soft); }
.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; counter-reset: s; }
.steps li { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 20px; position: relative; }
.steps .n { display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: var(--accent-soft); color: var(--accent); font-weight: 600; margin-bottom: .9rem; }
.steps h3 { margin-bottom: .5rem; }
.steps p { color: var(--muted); font-size: .92rem; margin: 0; }

/* Возможности */
.features h2 { margin-bottom: 3rem; }
.feat { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr); gap: 56px; align-items: center; margin-bottom: 88px; }
.feat.rev .ft { order: 2; }
.std { font-size: .82rem; font-weight: 600; color: var(--accent); letter-spacing: .04em; margin-bottom: .5rem; }
.feat h3 { font-size: 1.55rem; margin-bottom: 1.1rem; }
.feat ul { margin: 0; padding: 0; list-style: none; }
.feat li { padding-left: 1.5rem; position: relative; margin-bottom: .7rem; color: #39414a; font-size: 1rem; }
.feat li::before { content: ""; position: absolute; left: 0; top: .62em; width: 8px; height: 8px; border-radius: 2px; background: var(--accent); }
.mini { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.mini > div { border-top: 2px solid var(--ink); padding-top: 1rem; }
.mini h3 { margin-bottom: .5rem; }
.mini p { color: var(--muted); font-size: .95rem; }

/* Безопасность */
.security { background: #0f2a22; color: #e8efec; }
.security h2 { color: #fff; }
.security .sub { color: #a9bdb5; }
.cards3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 2.5rem; }
.sc { border: 1px solid rgba(255,255,255,.14); border-radius: var(--radius); padding: 26px; background: rgba(255,255,255,.03); }
.sc.accent { background: #fff; color: var(--ink); border-color: #fff; }
.sc .tag { font-size: .8rem; font-weight: 600; letter-spacing: .05em; text-transform: uppercase; color: #8fd1b8; margin-bottom: .6rem; }
.sc.accent .tag { color: var(--accent); }
.sc h3 { margin-bottom: .6rem; font-size: 1.2rem; }
.sc p { margin: 0; font-size: .95rem; color: #c3d2cc; }
.sc.accent p { color: var(--muted); }
.sec-list { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px 40px; }
.sec-list li { font-size: .97rem; color: #c3d2cc; }
.sec-list b { color: #fff; }

/* Для кого */
.who-in { display: grid; grid-template-columns: 1fr 2fr; gap: 40px; align-items: start; }
.who ul { margin: 0; padding: 0; list-style: none; }
.who li { padding: 1rem 0; border-bottom: 1px solid var(--line); font-size: 1.1rem; }
.who li:first-child { border-top: 1px solid var(--line); }

/* Вопросы */
.faq { background: var(--soft); }
.faq h2 { margin-bottom: 1.5rem; }
details { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 0 22px; margin-bottom: 10px; }
summary { cursor: pointer; padding: 18px 0; font-weight: 500; list-style: none; position: relative; padding-right: 2rem; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 0; top: 14px; font-size: 1.4rem; color: var(--muted); }
details[open] summary::after { content: "−"; }
details p { color: var(--muted); margin: 0 0 18px; }

/* Заявка */
.demo-in { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 56px; align-items: start; }
.demo-text p { color: var(--muted); }
.call { font-size: 1.05rem; color: var(--ink) !important; }
.call a { font-weight: 600; }
.form { border: 1px solid var(--line); border-radius: 14px; padding: 28px; background: #fff; box-shadow: 0 18px 40px -20px rgba(16,24,40,.18); }
.form label { display: block; font-size: .88rem; color: var(--muted); margin-bottom: .9rem; }
.form input, .form textarea { display: block; width: 100%; margin-top: .3rem; padding: .7rem .8rem; font: inherit; font-size: 1rem; color: var(--ink);
  border: 1px solid #cfd4da; border-radius: 8px; background: #fff; }
.form input:focus, .form textarea:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); }
.form .two { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
.form .btn { width: 100%; margin-top: .3rem; }
.form .fine { font-size: .8rem; color: var(--muted); margin: .8rem 0 0; }
.form .err { background: #fbeceb; color: #b3261e; padding: .6rem .8rem; border-radius: 8px; font-size: .95rem; }
.form.done { text-align: center; padding: 48px 28px; }
.form.done h3 { color: var(--accent); margin-bottom: .5rem; font-size: 1.4rem; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }

.foot { border-top: 1px solid var(--line); padding: 32px 0; font-size: .95rem; color: var(--muted); }
.foot-in { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.foot b { color: var(--ink); }

@media (max-width: 1000px) {
  .links { display: none; }
  .hero-in, .feat, .demo-in, .who-in { grid-template-columns: 1fr; gap: 32px; }
  .feat.rev .ft { order: 0; }
  .cards4 { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .cards3, .mini, .sec-list { grid-template-columns: 1fr; }
  section { padding: 64px 0; }
  .feat { margin-bottom: 64px; }
}
@media (max-width: 600px) {
  body { font-size: 16px; }
  .wrap { padding: 0 16px; }
  .nav-in { gap: 1rem; }
  .login { display: none; }
  .cards4, .steps { grid-template-columns: 1fr; }
  .form { padding: 20px; }
  .form .two { grid-template-columns: 1fr; }
  .hero { padding-top: 40px; }
}
.logo-mark { display: inline-grid; place-items: center; width: 1.35em; height: 1.35em; margin-right: .35em; border-radius: 6px; background: var(--accent); color: #fff;
  font-size: .8em; font-weight: 700; vertical-align: .05em; }