:root{
  --brand:#2f80ed;
  --brand-600:#2570d8;
  --brand-700:#1c5aa8;
  --brand-050:#e3eeff;
  --sky-1:#2f80ed;
  --sky-2:#1f5fae;
  --sky-3:#163c67;
  --accent:#d8a074;
  --accent-dark:#7b4f30;
  --accent-light:#f1c79f;
  --ink:#1a1f38;
  --muted:#5e6d86;
  --line:#dfe9f6;
  --bg:#f7fbff;
  --card:#ffffff;
  --r-sm:10px;
  --r:14px;
  --r-lg:20px;
  --shadow-xs:0 1px 3px rgba(22,60,103,.06);
  --shadow-sm:0 6px 18px rgba(22,60,103,.09);
  --shadow-md:0 14px 36px rgba(22,60,103,.13);
  --shadow-lg:0 26px 60px rgba(22,60,103,.18);
  --header-h:68px;
  --maxw:1200px;
  --font:'Segoe UI',system-ui,-apple-system,'Roboto','Helvetica Neue',Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
h1,h2,h3,h4{line-height:1.14;letter-spacing:-.02em;font-weight:800;color:var(--ink)}

/* section heads — left aligned */
.section{padding:70px 0}
.sec-head{margin-bottom:34px;display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap}
.sec-head .t{max-width:640px}
.sec-head h2{font-size:clamp(24px,3.2vw,34px);margin-bottom:8px}
.sec-head p{color:var(--muted);font-size:16px}
.sec-link{color:var(--brand);font-weight:700;font-size:15px;white-space:nowrap}
.sec-link:hover{text-decoration:underline}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-weight:700;font-size:15px;padding:13px 24px;border-radius:var(--r-sm);cursor:pointer;border:1.5px solid transparent;transition:.2s;white-space:nowrap}
.btn-primary{background:linear-gradient(180deg,#3a8dff,var(--brand));color:#fff;box-shadow:0 8px 20px rgba(43,124,245,.32)}
.btn-primary:hover{filter:brightness(1.05);transform:translateY(-1px);box-shadow:0 12px 26px rgba(43,124,245,.42)}
.btn-white{background:#fff;color:var(--brand);box-shadow:var(--shadow-sm)}
.btn-white:hover{transform:translateY(-1px)}
.btn-ghost{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.4)}
.btn-ghost:hover{background:rgba(255,255,255,.24)}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--line)}
.btn-outline:hover{border-color:var(--brand)}
.btn-block{width:100%}

/* header — transparent overlay over hero, solid on scroll */
.header{position:fixed;top:0;left:0;right:0;z-index:50;background:transparent;border-bottom:1px solid transparent;transition:.25s}
.header.scrolled{background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-color:var(--line);box-shadow:var(--shadow-xs)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:22px;color:#fff}
.brand-logo{height:30px;width:auto;display:block;filter:brightness(0) invert(1);transition:filter .25s}
.header.scrolled .brand-logo{filter:none}
.brand .anchor{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;background:rgba(255,255,255,.22);color:#fff}
.brand b{color:#fff}
.nav{display:flex;align-items:center;gap:28px}
.nav a{font-weight:600;font-size:15px;color:#eaf2ff;transition:.2s}
.nav a:hover{color:#fff}
.header-cta{display:flex;align-items:center;gap:12px}
.header .header-cta .btn-primary{background:#fff;color:var(--brand);box-shadow:0 6px 16px rgba(0,0,0,.12)}
.burger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.burger span{width:24px;height:2px;background:#fff;border-radius:2px}
/* scrolled → dark text on white */
.header.scrolled .brand{color:var(--brand)}
.header.scrolled .brand .anchor{background:linear-gradient(180deg,#3a8dff,var(--brand))}
.header.scrolled .brand b{color:var(--ink)}
.header.scrolled .nav a{color:var(--ink)}
.header.scrolled .nav a:hover{color:var(--brand)}
.header.scrolled .header-cta .btn-primary{background:linear-gradient(180deg,#3a8dff,var(--brand));color:#fff}
.header.scrolled .burger span{background:var(--ink)}

/* nav dropdown «Покупателю» */
.nav-drop{position:relative;display:flex;align-items:center}
.nav-drop-t{cursor:pointer}
.nav-caret{font-size:10px}
.nav-drop::after{content:"";position:absolute;top:100%;left:-12px;right:-12px;height:16px}
.nav-drop-menu{position:absolute;top:calc(100% + 12px);left:50%;transform:translateX(-50%);min-width:242px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow-md);padding:8px;display:none;z-index:60}
.nav-drop:hover .nav-drop-menu{display:block}
.nav .nav-drop-menu a{display:block;padding:10px 14px;border-radius:8px;color:var(--ink);font-size:14.5px;font-weight:600;white-space:nowrap;transition:.15s}
.nav .nav-drop-menu a:hover{background:var(--brand-050);color:var(--brand)}
/* мобильная группа-заголовок «Покупателю» */
.mm-group{padding:12px 12px 4px;font-size:12px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}

/* mobile menu */
.mm-backdrop{display:none;position:fixed;inset:0;background:rgba(10,25,50,.4);z-index:55}
.mm-backdrop.open{display:block}
.mobile-menu{position:fixed;top:0;right:0;bottom:0;width:290px;max-width:82vw;background:#fff;box-shadow:var(--shadow-lg);z-index:60;padding:74px 22px 24px;display:flex;flex-direction:column;gap:4px;transform:translateX(100%);transition:transform .28s ease;visibility:hidden}
.mobile-menu.open{transform:none;visibility:visible}
.mobile-menu a{padding:12px 12px;font-weight:600;font-size:16px;color:var(--ink);border-radius:10px}
.mobile-menu a:hover{background:var(--brand-050);color:var(--brand)}
.mobile-menu .btn-primary{margin-top:14px;justify-content:center}
.mm-close{position:absolute;top:16px;right:20px;font-size:30px;line-height:1;cursor:pointer;color:var(--muted)}

/* hero — full-bleed background, centered content, header overlaid on top */
.hero{
  position:relative;overflow:hidden;color:#fff;padding:128px 0 150px;
  background:
    radial-gradient(900px 380px at 88% -10%,rgba(255,255,255,.28),transparent 60%),
    radial-gradient(700px 500px at 10% 120%,rgba(9,52,140,.5),transparent 60%),
    linear-gradient(120deg,var(--sky-3) 0%,var(--sky-2) 42%,var(--sky-1) 100%);
}
.hero .cloud{position:absolute;border-radius:50%;background:rgba(255,255,255,.16);filter:blur(24px)}
.hero .c1{width:340px;height:150px;top:80px;right:12%}
.hero .c2{width:240px;height:110px;top:190px;right:26%;background:rgba(255,255,255,.12)}
.hero .waves{position:absolute;left:0;right:0;bottom:-2px;line-height:0;opacity:.55}
.hero .waves svg{width:100%;height:120px;display:block}
.hero-copy{position:relative;z-index:2;max-width:620px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent-light);background:rgba(241,199,159,.12);border:1px solid rgba(241,199,159,.4);padding:7px 14px;border-radius:999px;margin-bottom:20px}
.hero h1{color:#fff;font-weight:900;font-size:clamp(32px,4.6vw,52px);line-height:1.04;letter-spacing:-.03em;margin-bottom:18px}
.hero h1 span{color:#bfe0ff}
.hero .lead{font-size:18px;color:#e4f0ff;max-width:540px;margin-bottom:20px}
.hero-chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px;max-width:560px}
.hero-chips span{font-size:13px;font-weight:600;color:#eaf4ff;background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.22);padding:6px 13px;border-radius:999px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}

/* overlapping stats card */
.hero-card{
  position:relative;z-index:5;margin:-80px auto 0;max-width:1040px;
  background:#fff;border-radius:var(--r);box-shadow:var(--shadow-md);
  padding:22px 12px;display:grid;grid-template-columns:repeat(4,1fr);
}
.hero-card .cell{padding:6px 20px;text-align:center;border-right:1px solid var(--line)}
.hero-card .cell:last-child{border-right:0}
.hero-card .num{font-size:30px;font-weight:900;color:var(--brand);letter-spacing:-.02em;line-height:1}
.hero-card .num small{font-size:18px}
.hero-card .lbl{font-size:13.5px;color:var(--muted);margin-top:6px}

/* trust line */
.trust{padding:26px 0 4px}
.trust-inner{display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap;color:var(--muted);font-size:14px}
.trust .pay{display:inline-flex;gap:8px}
.trust .pay span{background:#fff;border:1px solid var(--line);border-radius:7px;padding:6px 11px;font-size:12px;font-weight:700;color:#41506b;box-shadow:var(--shadow-xs)}

/* features */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.feat{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:26px 24px;box-shadow:var(--shadow-xs);transition:.25s}
.feat:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#d4e4fb}
.feat .top{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.feat .ic{width:50px;height:50px;border-radius:13px;display:grid;place-items:center;color:#fff;background:linear-gradient(180deg,#3a8dff,var(--brand));box-shadow:0 8px 18px rgba(43,124,245,.28)}
.feat .no{font-size:26px;font-weight:900;color:var(--accent-light);letter-spacing:-.02em}
.feat h3{font-size:18px;margin-bottom:8px}
.feat p{color:var(--muted);font-size:14.5px}

/* showcase */
.showcase{background:linear-gradient(180deg,#eaf2ff,var(--bg))}
.tabs{display:flex;gap:10px;margin-bottom:28px;flex-wrap:wrap}
.tab{padding:11px 20px;border-radius:999px;font-weight:700;font-size:14.5px;cursor:pointer;color:var(--muted);background:#fff;border:1px solid var(--line);transition:.2s}
.tab.active{background:var(--brand);color:#fff;border-color:transparent;box-shadow:0 8px 20px rgba(43,124,245,.28)}
.shot-stage{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-md);padding:20px;max-width:900px;margin:0 auto}
.shot{display:none}
.shot.active{display:block;animation:fade .4s ease}
.shot img{width:100%;border-radius:10px}
.shot .cap{text-align:center;color:var(--muted);font-size:14.5px;margin-top:16px}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* pricing */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:stretch}
.price{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:30px 26px;box-shadow:var(--shadow-xs);display:flex;flex-direction:column;transition:.25s}
.price:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.price.hot{border:0;color:#fff;position:relative;background:linear-gradient(160deg,var(--sky-2),var(--brand) 55%,#3a8dff);box-shadow:var(--shadow-lg)}
.price.hot .sub,.price.hot .feats li,.price.hot .feats .k{color:#eaf4ff}
.price.hot .feats svg{color:#bfe0ff}
.tag{position:absolute;top:16px;right:16px;background:rgba(255,255,255,.2);color:#fff;font-size:12px;font-weight:700;padding:5px 12px;border-radius:999px;border:1px solid rgba(255,255,255,.3)}
.price h3{font-size:22px;margin-bottom:6px}
.price.hot h3{color:#fff}
.price .sub{color:var(--muted);font-size:14px;margin-bottom:22px}
.price .feats{list-style:none;display:flex;flex-direction:column;gap:12px;flex:1;margin-bottom:24px}
.price .feats li{display:flex;gap:9px;font-size:14.5px;align-items:flex-start}
.price .feats svg{flex:none;margin-top:3px;color:var(--brand)}
.price .feats .k{color:var(--muted)}

/* CTA band */
.cta-band{position:relative;border-radius:var(--r-lg);overflow:hidden;color:#fff;padding:56px 56px;box-shadow:var(--shadow-lg);
  background:
    radial-gradient(600px 300px at 92% 10%,rgba(255,255,255,.22),transparent 60%),
    linear-gradient(120deg,var(--sky-3),var(--brand) 60%,#3a8dff);
}
.cta-band .waves{position:absolute;right:-40px;bottom:-40px;width:420px;opacity:.25}
.cta-band h2{color:#fff;font-size:clamp(24px,3.2vw,36px);margin-bottom:14px;max-width:560px}
.cta-band .chips{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:26px}
.cta-band .chips span{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.25);padding:8px 15px;border-radius:999px}
.cta-band .row{display:flex;align-items:center;gap:40px;flex-wrap:wrap}
.cta-band .counters{display:flex;gap:34px}
.cta-band .counters .num{font-size:30px;font-weight:900;line-height:1}
.cta-band .counters .lbl{font-size:13px;color:#dceaff;margin-top:4px}

/* partners */
.part-carousel{overflow-x:auto;overflow-y:hidden;cursor:grab;scrollbar-width:none;-ms-overflow-style:none;-webkit-overflow-scrolling:touch}
.part-carousel::-webkit-scrollbar{display:none}
.part-carousel.dragging{cursor:grabbing}
.part-track{display:flex;gap:18px;width:max-content;padding:12px 0}
.part{position:relative;flex:0 0 300px;display:flex;flex-direction:column;justify-content:space-between;min-height:240px;border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow-xs);color:#fff;transition:transform .25s,box-shadow .25s}
.part img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;transition:transform .5s ease}
.part::after{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(180deg,rgba(9,22,44,.62) 0%,rgba(9,22,44,.10) 40%,rgba(9,22,44,.34) 62%,rgba(9,22,44,.88) 100%)}
.part:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.part:hover img{transform:scale(1.06)}
.part-top{position:relative;z-index:2;padding:18px 20px}
.part-top h4{color:#fff;font-size:18px;font-weight:800;letter-spacing:-.01em;text-shadow:0 2px 8px rgba(0,0,0,.5)}
.part-bot{position:relative;z-index:2;padding:14px 20px 18px}
.part-bot p{color:rgba(255,255,255,.92);font-size:13px;margin-bottom:10px;text-shadow:0 1px 4px rgba(0,0,0,.6)}
.part-bot .link{color:#fff;font-weight:700;font-size:13.5px;display:inline-flex;align-items:center;gap:5px}
.part:hover .part-bot .link{gap:8px}

/* architecture — «единое поле» */
.arch{background:linear-gradient(180deg,#fff,var(--bg))}
.arch-diagram{display:flex;align-items:stretch;justify-content:center;gap:0;max-width:1060px;margin:0 auto}
.arch-col{flex:1;display:flex;flex-direction:column;gap:14px;justify-content:center;min-width:0}
.arch-node{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:16px 14px;text-align:center;font-weight:700;font-size:15px;box-shadow:var(--shadow-xs)}
.arch-node small{display:block;font-weight:600;font-size:12px;color:var(--muted);margin-top:3px}
.arch-flow{flex:0 0 128px;position:relative;display:flex;align-items:center;justify-content:center;min-height:70px}
.arch-flow::before{content:"";position:absolute;left:6px;right:6px;top:50%;height:2px;background:linear-gradient(90deg,var(--brand-050),var(--brand))}
.arch-flow::after{content:"";position:absolute;top:50%;width:0;height:0;border-style:solid}
.arch-flow-in::after{right:6px;transform:translateY(-50%);border-width:5px 0 5px 7px;border-color:transparent transparent transparent var(--brand)}
.arch-flow-out::after{right:6px;transform:translateY(-50%);border-width:5px 0 5px 7px;border-color:transparent transparent transparent var(--brand)}
.arch-flow-label{position:relative;z-index:1;background:var(--bg);padding:3px 9px;font-size:12px;font-weight:700;color:var(--brand);text-align:center;line-height:1.3;border-radius:8px}
.arch-core{flex:0 0 236px;color:#fff;border-radius:var(--r-lg);padding:26px 22px;text-align:center;background:linear-gradient(160deg,var(--sky-2),var(--brand) 60%,#3a8dff);box-shadow:var(--shadow-lg);align-self:center}
.arch-core-title{font-size:20px;font-weight:900;letter-spacing:-.02em}
.arch-core-sub{font-size:12.5px;color:#dceaff;margin-top:3px}
.arch-core-parts{display:flex;flex-direction:column;gap:8px;margin-top:16px}
.arch-core-parts span{background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.26);border-radius:10px;padding:9px 10px;font-size:13.5px;font-weight:700}
.arch-note{max-width:740px;margin:28px auto 0;text-align:center;color:var(--muted);font-size:15px}

/* featured partner — ВодоходЪ */
.feat-partner{display:grid;grid-template-columns:1.55fr 1fr;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-sm);background:var(--card);margin-bottom:26px}
.fp-body{padding:34px 34px}
.fp-badge{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--brand);background:var(--brand-050);padding:5px 12px;border-radius:999px;margin-bottom:14px}
.fp-body h3{font-size:24px;margin-bottom:10px}
.fp-body p{color:var(--muted);font-size:15px;margin-bottom:16px}
.fp-tags{display:flex;flex-wrap:wrap;gap:8px}
.fp-tags span{font-size:13px;font-weight:600;color:#41506b;background:var(--bg);border:1px solid var(--line);border-radius:999px;padding:6px 13px}
.fp-side{color:#fff;padding:32px 30px;display:flex;flex-direction:column;justify-content:center;gap:18px;background:linear-gradient(160deg,var(--sky-3),var(--brand) 60%,#3a8dff)}
.fp-side .fp-stat .n{font-size:25px;font-weight:900;line-height:1.05}
.fp-side .fp-stat .l{font-size:13px;color:#dceaff;margin-top:3px}

/* aggregators strip */
.aggr{margin-top:28px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow-xs);padding:20px 26px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.aggr-title{font-weight:700;font-size:15px;color:var(--ink)}
.aggr-logos{display:flex;flex-wrap:wrap;gap:10px}
.aggr-logos span{font-weight:800;font-size:15px;letter-spacing:-.01em;color:#41506b;background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:9px 16px}

/* footer */
.footer{background:#0f2748;color:#b9c9e0;padding:56px 0 30px;margin-top:20px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:34px;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer .brand{color:#fff;margin-bottom:12px;font-size:20px;font-weight:800;display:flex;align-items:center;gap:8px}
.footer .brand b{color:#fff}
.footer .desc{color:#93a7c6;font-size:14px;max-width:280px}
.footer h5{color:#fff;font-size:14px;font-weight:700;margin-bottom:14px}
.footer ul{list-style:none}
.footer ul li{margin-bottom:10px}
.footer ul a{color:#93a7c6;font-size:14px;transition:.2s}
.footer ul a:hover{color:#fff}
.foot-pay{display:flex;gap:8px;flex-wrap:wrap;margin-top:4px}
.foot-pay span{background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.14);border-radius:7px;padding:6px 10px;font-size:11.5px;font-weight:700;color:#cfe0f5}
.copyright{padding-top:22px;color:#7288aa;font-size:13.5px;text-align:center}

/* geography — scrollytelling: поднимается в потоке → города → карта во весь экран */
.geo{position:relative;background:var(--bg);color:var(--ink);height:150vh}
.geo-sticky{position:sticky;top:var(--header-h);height:calc(100vh - var(--header-h));overflow:hidden;background:#e8f1fc;display:flex;flex-direction:column}
.geo-panel{flex:1;display:flex;flex-direction:column;min-height:0;padding:34px 0 0}
.geo-head{text-align:center;padding:0 24px;margin-bottom:14px}
.geo-head h2{color:var(--ink);font-size:clamp(24px,3.2vw,34px);margin-bottom:8px}
.geo-head p{color:var(--muted);font-size:16px;max-width:580px;margin:0 auto}
.geo-stage{position:relative;flex:1;min-height:0;width:100%}
.geo-list{position:absolute;inset:0;z-index:4;display:flex;align-items:flex-start;justify-content:center;padding:24px 24px 0}
.geo-list-inner{display:flex;flex-wrap:wrap;align-items:center;align-content:center;justify-content:center;gap:12px 18px;max-width:660px}
.geo-list span{opacity:0;font-weight:800;font-size:clamp(16px,2.1vw,26px);letter-spacing:-.02em;color:var(--brand);white-space:nowrap;will-change:transform,opacity;transform-origin:left center}
.map-wrap{position:absolute;inset:0;width:100%;height:100%;opacity:0;will-change:opacity}
.map-wrap svg{position:absolute;inset:0;width:100%;height:100%}
.geo-js .geo-label{display:none}
#geo-base :is(path,g){fill:#c2d9f5}
.geo-dot{fill:rgba(43,124,245,.55);stroke:rgba(43,124,245,.6);stroke-width:1}
.geo-pulse{fill:rgba(43,124,245,.28);transform-box:fill-box;transform-origin:center;animation:geopulse 2.8s ease-out infinite}
@keyframes geopulse{0%{transform:scale(.55);opacity:.55}70%{opacity:0}100%{transform:scale(2.4);opacity:0}}
@media (prefers-reduced-motion:reduce){.geo-pulse{animation:none;opacity:0}}
.geo-label{fill:#12336b;font:700 7px var(--font);paint-order:stroke;stroke:rgba(255,255,255,.92);stroke-width:2.4px}
/* reduced motion / no-JS fallback: статичная карта */
@media (prefers-reduced-motion:reduce){
  .geo{height:auto}
  .geo-sticky{position:static;height:auto;overflow:visible}
  .geo-panel{position:static;transform:none!important}
  .geo-list{display:none}
  .geo-stage{height:auto;aspect-ratio:560/300}
  .map-wrap{opacity:1}
}

/* responsive */
@media(max-width:980px){
  .nav{display:none}.burger{display:flex}
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .price-grid{grid-template-columns:1fr;max-width:460px;margin:0 auto}
  .foot-grid{grid-template-columns:1fr 1fr}
  .hero-banner{padding:52px 32px 80px}
  .cta-band{padding:44px 32px}
  .feat-partner{grid-template-columns:1fr}
  .fp-side{flex-direction:row;flex-wrap:wrap;gap:24px}
}
/* architecture → вертикальная схема на планшете и уже */
@media(max-width:820px){
  .arch-diagram{flex-direction:column;align-items:stretch;max-width:420px}
  .arch-col{flex-direction:row;flex-wrap:wrap}
  .arch-col .arch-node{flex:1;min-width:130px}
  .arch-core{flex:none;width:100%}
  .arch-flow{flex-basis:auto;min-height:56px}
  .arch-flow::before{left:50%;right:auto;top:6px;bottom:6px;height:auto;width:2px;background:linear-gradient(180deg,var(--brand-050),var(--brand))}
  .arch-flow-in::after,.arch-flow-out::after{left:50%;right:auto;top:auto;bottom:6px;transform:translateX(-50%);border-width:7px 5px 0 5px;border-color:var(--brand) transparent transparent transparent}
}
@media(max-width:600px){
  .section{padding:52px 0}
  .hero-card{grid-template-columns:repeat(2,1fr);gap:14px 0}
  .hero-card .cell{border-right:0}
  .hero-card .cell:nth-child(odd){border-right:1px solid var(--line)}
  .feat-grid{grid-template-columns:1fr}
  .part{flex-basis:82vw}
  .foot-grid{grid-template-columns:1fr}
  .cta-band .row{gap:24px}
  .cta-band .counters{gap:24px}
  .aggr{flex-direction:column;align-items:flex-start}
  .fp-body{padding:26px 24px}
}