:root{--bg:#f5f7f7;--surface:#fff;--text:#172026;--muted:#66757b;--line:#d9e1e3;--teal:#155e66;--teal-dark:#104b52;--dark:#0f242b;--dark2:#132f37;--soft:#eaf1f2;--radius:12px;--shadow:0 14px 40px rgba(17,45,52,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.55;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}
.container{width:min(1240px,calc(100% - 64px));margin:0 auto}.section{padding:96px 0}.section-light{background:linear-gradient(180deg,#f8faf9 0%,#f4f7f7 100%)}.section-dark{background:linear-gradient(135deg,var(--dark) 0%,var(--dark2) 100%);color:#eef6f7}
.eyebrow{margin:0 0 14px;color:#6f858c;font-size:12px;font-weight:800;letter-spacing:.11em;text-transform:uppercase}.section-dark .eyebrow{color:#8eb2b8}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(44px,5vw,68px);line-height:1.04;letter-spacing:-.045em;margin-bottom:24px;max-width:790px}h2{font-size:clamp(32px,3.3vw,46px);line-height:1.12;letter-spacing:-.035em;margin-bottom:18px}h3{font-size:20px;line-height:1.3;margin-bottom:10px}
.lead{font-size:20px;color:#42565d;max-width:760px}.section-dark .lead,.section-dark p{color:#c4d4d7}.lead.small{font-size:18px}.text-link{display:inline-flex;color:var(--teal);font-weight:700;margin-top:12px}.section-dark .text-link{color:#c2eff2}
.site-header{position:sticky;top:0;z-index:30;background:rgba(15,36,43,.97);backdrop-filter:blur(14px);border-bottom:1px solid rgba(255,255,255,.08)}.header-inner{height:78px;display:flex;align-items:center;gap:28px}.brand{display:flex;align-items:center;flex:0 0 auto}.brand img{width:118px;height:auto;max-height:50px;object-fit:contain}
.main-nav{display:flex;align-items:center;gap:24px;margin-left:auto;color:#d6e3e5;font-size:14px}.main-nav a:hover{color:#fff}.menu-toggle{display:none;background:none;border:1px solid rgba(255,255,255,.25);color:#fff;border-radius:8px;padding:9px 12px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border:1px solid var(--teal);border-radius:9px;background:var(--teal);color:#fff;font-weight:650;transition:.2s ease;cursor:pointer}.btn:hover{background:var(--teal-dark);border-color:var(--teal-dark);transform:translateY(-1px)}.btn-small{min-height:42px;padding:0 17px;font-size:14px}.btn-ghost{background:transparent;color:var(--teal)}
.hero{padding:88px 0 76px}.hero-grid{display:grid;grid-template-columns:minmax(0,1.13fr) minmax(420px,.87fr);gap:70px;align-items:center}.hero-copy .actions{display:flex;gap:12px;margin:34px 0 38px}
.trust-row{display:grid;grid-template-columns:.6fr 1.1fr 1fr;border-top:1px solid var(--line);padding-top:24px;gap:22px}.trust-row div{padding-right:20px;border-right:1px solid var(--line)}.trust-row div:last-child{border-right:0}.trust-row strong{display:block;font-size:16px;color:#173e45}.trust-row span{display:block;color:var(--muted);font-size:13px;margin-top:4px}
.system-map{position:relative;min-height:490px;border-radius:22px;background:radial-gradient(circle at center,rgba(21,94,102,.10),transparent 52%),linear-gradient(180deg,rgba(255,255,255,.7),rgba(233,241,242,.58));border:1px solid #e0e8e9;overflow:hidden}.system-map:before,.system-map:after{content:"";position:absolute;left:50%;top:50%;width:390px;height:390px;transform:translate(-50%,-50%);border:1px solid rgba(21,94,102,.11);border-radius:50%}.system-map:after{width:265px;height:265px}
.system-core{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:160px;height:98px;background:linear-gradient(145deg,#1d747d,#103f46);color:#fff;border-radius:18px;display:flex;align-items:center;justify-content:center;flex-direction:column;font-size:20px;font-weight:750;box-shadow:0 22px 45px rgba(15,63,70,.22);z-index:2}.system-core span{font-size:12px;font-weight:500;opacity:.78;margin-top:4px}
.node{position:absolute;width:135px;padding:16px;background:rgba(255,255,255,.92);border:1px solid #dbe5e6;border-radius:12px;box-shadow:0 10px 25px rgba(18,60,67,.06);z-index:3}.node:after{content:"";position:absolute;background:#9fc3c7;opacity:.7}.node b{display:block;color:#173f46;font-size:15px}.node span{display:block;color:#73858b;font-size:11px;margin-top:4px}
.node-a{top:42px;left:50%;transform:translateX(-50%)}.node-a:after{width:1px;height:80px;left:50%;top:100%}.node-b{left:26px;top:155px}.node-b:after{width:85px;height:1px;left:100%;top:52%}.node-c{left:48px;bottom:42px}.node-c:after{width:105px;height:1px;left:100%;top:30%;transform:rotate(-25deg);transform-origin:left}.node-d{right:45px;bottom:40px}.node-d:after{width:105px;height:1px;right:100%;top:30%;transform:rotate(25deg);transform-origin:right}.node-e{right:24px;top:154px}.node-e:after{width:86px;height:1px;right:100%;top:52%}
.situations{background:#fff;padding-top:82px;padding-bottom:84px}.situations h2{max-width:820px}.situation-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:42px;border-top:1px solid var(--line)}
.situation-grid article{padding:28px 28px 0 0;margin-right:28px;border-right:1px solid var(--line)}.situation-grid article:last-child{border-right:0;margin-right:0}.num{display:inline-flex;width:38px;height:38px;border-radius:50%;background:var(--soft);align-items:center;justify-content:center;color:var(--teal);font-size:12px;font-weight:800;margin-bottom:22px}
.situation-grid p,.service-grid p,.case-grid p,.principles p{color:var(--muted);font-size:15px}.split{display:grid;grid-template-columns:1fr 1fr;gap:86px;align-items:center}.under-surface{overflow:hidden}.under-surface h2{max-width:600px}
.layers{position:relative;padding:6px 0}.layer{height:46px;display:flex;align-items:center;justify-content:center;margin:6px 0;border:1px solid rgba(157,207,212,.35);background:rgba(28,83,91,.34);border-radius:8px;color:#dceff1;font-size:14px}.layer.visible{background:#245e66;color:#fff;border-color:#4b8b92}
.layers:before{content:"Технический слой";position:absolute;right:-115px;top:48%;transform:rotate(90deg);color:#6f999f;font-size:12px;text-transform:uppercase;letter-spacing:.1em}.transition{background:#f8faf9}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:40px}.section-head>div{max-width:860px}.steps{list-style:none;padding:0;margin:50px 0 0;display:grid;grid-template-columns:repeat(6,1fr);counter-reset:step}
.steps li{position:relative;padding:44px 20px 0 0;border-top:1px solid #cfdadd}.steps li:before{counter-increment:step;content:counter(step,decimal-leading-zero);position:absolute;top:-18px;left:0;width:36px;height:36px;border-radius:50%;background:#e4eef0;color:var(--teal);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:11px}
.steps b{display:block;font-size:14px;margin-bottom:6px}.steps span{display:block;color:var(--muted);font-size:12px;max-width:135px}.services{background:#fff}.service-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-top:42px}
.service-grid article{padding:26px 22px 24px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;min-height:210px}.service-grid article>span{display:block;color:#9aadb2;font-size:12px;margin-bottom:28px}
.secondary-services{display:flex;gap:28px;flex-wrap:wrap;margin-top:26px;padding-top:24px;border-top:1px solid var(--line)}.secondary-services a{color:var(--teal);font-weight:700}.compact{grid-template-columns:.92fr 1.08fr}
.network{display:grid;grid-template-columns:150px 1fr 150px;gap:24px;align-items:center}.network-lines{display:grid;gap:9px}.network-lines span{border:1px solid rgba(144,202,207,.35);border-radius:24px;padding:9px 14px;text-align:center;color:#c6d9dc;font-size:13px;position:relative}
.network-lines span:after{content:"";position:absolute;left:100%;top:50%;width:24px;height:1px;background:#4d8a91}.network-site{background:rgba(41,106,115,.34);border:1px solid rgba(124,196,203,.45);border-radius:12px;padding:34px 18px;text-align:center}.network-site strong{display:block;color:#7fd1b0;margin-top:8px}
.network ul{list-style:none;padding:0;margin:0;display:grid;gap:14px}.network li:before{content:"✓";display:inline-flex;width:22px;height:22px;align-items:center;justify-content:center;border:1px solid #5aa1a8;border-radius:50%;margin-right:10px;color:#9ee0c0}
.cases{background:#f7f9f9}.case-feature{display:grid;grid-template-columns:.92fr 1.08fr;margin-top:36px;border:1px solid var(--line);border-radius:16px;background:#fff;overflow:hidden}.case-feature>div:first-child{padding:46px}.case-label{display:inline-block;color:#6a8086;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;margin-bottom:12px}
.case-feature h3{font-size:34px}.metric{font-size:54px;font-weight:800;letter-spacing:-.04em;color:var(--teal);margin:18px 0}.metric small{font-size:14px;font-weight:600;letter-spacing:0;color:var(--muted);margin-left:8px}.case-visual{padding:30px;background:linear-gradient(135deg,#e8f1f1,#f7f8f8);display:flex;align-items:center}
.browser{width:100%;aspect-ratio:16/9;border-radius:12px;background:#fff;border:1px solid #d7e1e2;box-shadow:var(--shadow);overflow:hidden}.browser-top{height:34px;background:#eef2f2;border-bottom:1px solid #dde4e5}.browser-copy{height:calc(100% - 34px);display:flex;align-items:center;justify-content:center;flex-direction:column;background:radial-gradient(circle at 50% 35%,#f4e9d9 0,#fff 42%)}
.browser-copy b{font-size:34px;font-family:Georgia,serif}.browser-copy span{font-size:13px;color:#806c5a;margin-top:8px}.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:14px}.case-grid article{padding:28px;border:1px solid var(--line);border-radius:12px;background:#fff}
.partner-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.partner-grid article{padding:42px;border:1px solid var(--line);background:#fff;border-radius:14px}.partner-grid h2{font-size:32px}.note{display:block;margin-top:18px;color:var(--teal)}
.approach{background:#fff}.principles{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:38px;border-top:1px solid var(--line)}.principles>div{padding:28px 26px 0 0;margin-right:26px;border-right:1px solid var(--line)}.principles>div:last-child{border-right:0}
.contact{padding:82px 0}.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:80px;align-items:start}.contact h2{max-width:540px}.messengers{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px}.messengers a{padding:10px 15px;border:1px solid rgba(255,255,255,.26);border-radius:8px;color:#fff}
.contact-form{display:grid;grid-template-columns:1fr 1fr;gap:14px;padding:26px;background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.12);border-radius:14px}.contact-form label{display:grid;gap:7px;font-size:12px;color:#a9c2c6}
.contact-form input,.contact-form select,.contact-form textarea{width:100%;border:1px solid rgba(255,255,255,.17);background:rgba(255,255,255,.07);color:#fff;border-radius:8px;padding:13px 14px;font:inherit;outline:none}.contact-form select option{color:#111}.contact-form input::placeholder,.contact-form textarea::placeholder{color:#7f9ba0}.contact-form input:focus,.contact-form textarea:focus,.contact-form select:focus{border-color:#66aab0}
.full{grid-column:1/-1}.footer{background:#0b1b20;color:#829ba0;border-top:1px solid rgba(255,255,255,.06);font-size:12px}.footer-inner{min-height:66px;display:flex;align-items:center;justify-content:space-between;gap:20px}

/* Inner pages */
.inner-hero{padding:88px 0 74px;background:linear-gradient(180deg,#f8faf9,#f3f6f6)}
.inner-hero .inner-copy{max-width:900px}.inner-hero h1{max-width:900px}.inner-hero .lead{max-width:820px}
.breadcrumbs{display:flex;gap:8px;align-items:center;color:#7d8e93;font-size:12px;margin-bottom:24px}.breadcrumbs a{color:var(--teal)}
.inner-section{padding:86px 0}.inner-section.white{background:#fff}.inner-section.soft{background:#f7f9f9}.inner-section.dark{background:linear-gradient(135deg,var(--dark),var(--dark2));color:#eef6f7}
.content-narrow{max-width:820px}.content-narrow p{font-size:18px;color:#51646a}.inner-section.dark .content-narrow p{color:#c4d4d7}
.feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:34px}.feature-item{padding:26px;border:1px solid var(--line);border-radius:12px;background:#fff}.feature-item h3{font-size:18px}.feature-item p{margin-bottom:0;color:var(--muted);font-size:14px}
.callout{padding:26px 30px;border-left:3px solid var(--teal);background:#eef5f5;border-radius:0 10px 10px 0;margin:32px 0;color:#26474d;font-weight:650}
.inner-section.dark .callout{background:rgba(255,255,255,.06);border-left-color:#7ac4ca;color:#ecf7f8}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}.bullet-list{display:grid;gap:12px;margin:24px 0 0;padding:0;list-style:none}.bullet-list li{padding-left:24px;position:relative;color:#53666c}.bullet-list li:before{content:"";position:absolute;left:0;top:.7em;width:8px;height:8px;border-radius:50%;background:var(--teal)}
.inner-section.dark .bullet-list li{color:#c5d5d8}.case-list{display:grid;gap:16px;margin-top:34px}.case-row{display:grid;grid-template-columns:180px 1fr auto;gap:28px;align-items:center;padding:28px;border:1px solid var(--line);background:#fff;border-radius:12px}.case-row h3{margin:0}.case-row p{margin:6px 0 0;color:var(--muted);font-size:14px}.case-row .case-meta{font-size:12px;color:#6f858c;text-transform:uppercase;letter-spacing:.06em}
.mini-cta{padding:34px;border-radius:14px;background:#edf4f4;border:1px solid #dbe6e7}.mini-cta h3{font-size:26px}.mini-cta p{color:#5c7076;max-width:620px}
@media(max-width:900px){.feature-list,.two-col{grid-template-columns:1fr}.case-row{grid-template-columns:1fr;gap:10px}.case-row .btn{justify-self:start}}