/* ============================================================
   data-structure.ru — Сергей Мердеев
   Приборный щит: цвет несёт смысл, а не украшает.
   Синий — действие, красный — расхождение, зелёный — сверено,
   янтарь — предупреждение.
   Три темы: светлая, тёмная, как в системе.
   ============================================================ */

@font-face{font-family:'Golos';src:url('fonts/golos-cyrillic.woff2') format('woff2');font-weight:400 900;font-display:swap;
  unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:'Golos';src:url('fonts/golos-latin.woff2') format('woff2');font-weight:400 900;font-display:swap;
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+2000-206F,U+2122,U+2212}
@font-face{font-family:'JB';src:url('fonts/jbmono-cyrillic.woff2') format('woff2');font-weight:400 800;font-display:swap;
  unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:'JB';src:url('fonts/jbmono-latin.woff2') format('woff2');font-weight:400 800;font-display:swap;
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+2000-206F,U+2122,U+2212}

/* ── СВЕТЛАЯ ТЕМА (база) ─────────────────────────────── */
:root{
  --bg:#f3f6fa; --bg2:#e9eef5; --panel:#fff; --panel2:#f7f9fd;
  --line:rgba(15,27,45,.10); --line2:rgba(15,27,45,.20);
  --tx:#0f1a28; --tx2:#4c5c70; --tx3:#78899c;
  --acc:#1d5fd6; --acc-d:#164cae; --acc-w:rgba(29,95,214,.10); --acc-t:#1d5fd6;
  --cy:#0e8fa8; --warn:#b3730d; --bad:#c33d2e; --ok:#15784f;
  --grid:rgba(15,27,45,.055);
  --glow-a:rgba(29,95,214,.13); --glow-b:rgba(14,143,168,.10);
  --sh:0 1px 2px rgba(15,27,45,.05),0 10px 30px -22px rgba(15,27,45,.4);
  --sh-h:0 2px 6px rgba(15,27,45,.07),0 20px 44px -26px rgba(15,27,45,.5);
  --cta-a:#123a7d; --cta-b:#1c5bb0; --cta-tx:#fff; --cta-p:#c9dcf7;
  --hero-fade:rgba(243,246,250,.62);
  /* акценты: блик кромки, свечение цифр, бегущий блик полосы */
  --edge:rgba(29,95,214,.22); --big-g:transparent; --big-gw:transparent;
  --sheen:none; --sheen-c:transparent; --sheen-sh:none;

  --r:16px; --r2:11px; --r3:8px;
  --wrap:1240px; --bar:66px;
  --sans:'Golos','Segoe UI',system-ui,sans-serif;
  --mono:'JB',ui-monospace,Consolas,monospace;
  --ease:cubic-bezier(.22,1,.36,1);
}

/* ── ТЁМНАЯ ТЕМА ─────────────────────────────────────── */
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0a0e14; --bg2:#0d1219; --panel:#131b26; --panel2:#18222f;
    --line:rgba(255,255,255,.085); --line2:rgba(255,255,255,.17);
    --tx:#e9eef4; --tx2:#9aa8b6; --tx3:#6d7c8b;
    --acc:#4d8dff; --acc-d:#3573e6; --acc-w:rgba(77,141,255,.14); --acc-t:#8fb6ff;
    --cy:#22d3ee; --warn:#f0a92c; --bad:#f2645a; --ok:#34d399;
    --grid:rgba(255,255,255,.05);
    --glow-a:rgba(77,141,255,.24); --glow-b:rgba(34,211,238,.14);
    --sh:0 1px 2px rgba(0,0,0,.5),0 18px 44px -30px rgba(0,0,0,.9);
    --sh-h:0 2px 8px rgba(0,0,0,.55),0 28px 60px -32px rgba(0,0,0,.95);
    --cta-a:#12294f; --cta-b:#1b3f7d; --cta-tx:#fff; --cta-p:#c5d8f5;
    --hero-fade:rgba(10,14,20,.55);
    --edge:rgba(154,192,255,.34); --big-g:rgba(77,141,255,.34); --big-gw:rgba(240,169,44,.24);
    --sheen:sheen 3.6s linear 1.1s infinite; --sheen-c:rgba(255,255,255,.42);
    --sheen-sh:0 0 12px -2px rgba(77,141,255,.75);
  }
}
:root[data-theme="dark"]{
  --bg:#0a0e14; --bg2:#0d1219; --panel:#131b26; --panel2:#18222f;
  --line:rgba(255,255,255,.085); --line2:rgba(255,255,255,.17);
  --tx:#e9eef4; --tx2:#9aa8b6; --tx3:#6d7c8b;
  --acc:#4d8dff; --acc-d:#3573e6; --acc-w:rgba(77,141,255,.14); --acc-t:#8fb6ff;
  --cy:#22d3ee; --warn:#f0a92c; --bad:#f2645a; --ok:#34d399;
  --grid:rgba(255,255,255,.05);
  --glow-a:rgba(77,141,255,.24); --glow-b:rgba(34,211,238,.14);
  --sh:0 1px 2px rgba(0,0,0,.5),0 18px 44px -30px rgba(0,0,0,.9);
  --sh-h:0 2px 8px rgba(0,0,0,.55),0 28px 60px -32px rgba(0,0,0,.95);
  --cta-a:#12294f; --cta-b:#1b3f7d; --cta-tx:#fff; --cta-p:#c5d8f5;
  --hero-fade:rgba(10,14,20,.55);
  --edge:rgba(154,192,255,.34); --big-g:rgba(77,141,255,.34); --big-gw:rgba(240,169,44,.24);
  --sheen:sheen 3.6s linear 1.1s infinite; --sheen-c:rgba(255,255,255,.42);
  --sheen-sh:0 0 12px -2px rgba(77,141,255,.75);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--bar) + 20px);-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--tx);font-family:var(--sans);font-size:17px;line-height:1.6;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
  transition:background-color .3s ease,color .3s ease}
h1,h2,h3,p,ol,ul,dl,dd,figure{margin:0}
ol,ul{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
i{font-style:normal}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
::selection{background:var(--acc);color:#fff}

.wrap{width:min(var(--wrap),calc(100% - 48px));margin-inline:auto}
.skip{position:fixed;z-index:999;top:10px;left:14px;transform:translateY(-200%);background:var(--acc);color:#fff;
  padding:12px 18px;border-radius:var(--r2);font-weight:600}
.skip:focus{transform:none}
:focus-visible{outline:2px solid var(--acc);outline-offset:3px;border-radius:4px}

/* ── ШАПКА ───────────────────────────────────────────── */
.bar{position:sticky;top:0;z-index:100;height:var(--bar);
  background:color-mix(in srgb,var(--bg) 82%,transparent);
  backdrop-filter:blur(16px) saturate(1.5);border-bottom:1px solid var(--line)}
.bar__in{height:100%;display:flex;align-items:center;gap:18px}
.mark{display:inline-flex;align-items:center;gap:11px;margin-right:auto;cursor:pointer}
.mark__i{width:28px;height:28px;flex:none}
.mark__bg{fill:var(--acc-w);stroke:var(--acc);stroke-width:1.2}
.mark__ln{fill:none;stroke:var(--acc);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.mark__dot{fill:var(--cy)}
.mark__t{font-weight:700;font-size:15px;letter-spacing:-.01em;transition:color .2s}
.mark:hover .mark__t{color:var(--acc)}

.nav{display:flex;gap:2px}
.nav a{padding:8px 12px;border-radius:var(--r3);font-size:14.5px;color:var(--tx2);
  cursor:pointer;transition:color .2s,background-color .2s}
.nav a:hover{color:var(--tx);background:color-mix(in srgb,var(--tx) 8%,transparent)}

/* переключатель темы */
.th{display:flex;gap:2px;padding:3px;border-radius:99px;border:1px solid var(--line);
  background:color-mix(in srgb,var(--tx) 5%,transparent);flex:none}
.th button{width:30px;height:26px;display:grid;place-items:center;border-radius:99px;
  color:var(--tx3);transition:color .2s,background-color .2s}
.th button svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.7;
  stroke-linecap:round;stroke-linejoin:round}
.th button:hover{color:var(--tx)}
.th button[aria-pressed="true"]{background:var(--panel);color:var(--acc);box-shadow:var(--sh)}

.burger{display:none;width:40px;height:40px;border-radius:var(--r3);align-items:center;justify-content:center;
  flex-direction:column;gap:5px;flex:none;transition:background-color .2s}
.burger:hover{background:color-mix(in srgb,var(--tx) 8%,transparent)}
.burger span{display:block;width:18px;height:2px;background:var(--tx);border-radius:2px;
  transition:transform .3s var(--ease)}
.burger[aria-expanded="true"] span:first-child{transform:translateY(3.5px) rotate(45deg)}
.burger[aria-expanded="true"] span:last-child{transform:translateY(-3.5px) rotate(-45deg)}

/* ── КНОПКИ ──────────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;cursor:pointer;
  padding:14px 24px;min-height:50px;border-radius:var(--r2);
  font-weight:600;font-size:15.5px;letter-spacing:-.005em;border:1.5px solid transparent;
  transition:transform .18s var(--ease),background-color .2s,border-color .2s,color .2s,box-shadow .25s}
.btn__a{transition:transform .25s var(--ease)}
.btn:hover .btn__a{transform:translateX(5px)}
.btn:active{transform:scale(.972)}
.btn--acc{background:var(--acc);color:#fff;box-shadow:0 4px 18px -6px color-mix(in srgb,var(--acc) 60%,transparent)}
.btn--acc:hover{background:var(--acc-d);transform:translateY(-2px);
  box-shadow:0 10px 30px -8px color-mix(in srgb,var(--acc) 75%,transparent)}
.btn--acc:active{transform:translateY(-2px) scale(.972)}
.btn--gh{background:color-mix(in srgb,var(--tx) 3%,transparent);color:var(--tx);border-color:var(--line2)}
.btn--gh:hover{background:color-mix(in srgb,var(--tx) 8%,transparent);
  border-color:color-mix(in srgb,var(--tx) 40%,transparent);transform:translateY(-2px)}
.btn--gh:active{transform:translateY(-2px) scale(.972)}
.btn--w{background:#fff;color:#0d1219;box-shadow:0 4px 22px -6px rgba(0,0,0,.4)}
.btn--w:hover{background:#e8eef7;transform:translateY(-2px);box-shadow:0 10px 32px -8px rgba(0,0,0,.5)}
.btn--w:active{transform:translateY(-2px) scale(.972)}
.btn--s{min-height:40px;padding:9px 17px;font-size:14px}
.btn--l{min-height:56px;padding:16px 28px;font-size:16px}
.bar__cta{flex:none}

/* ── СЕКЦИИ ──────────────────────────────────────────── */
.sec{position:relative;padding-block:clamp(74px,8.5vw,136px)}
.sec--dark{background:var(--bg2)}
.sec--dark::before{content:'';position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),
                   linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:52px 52px;
  -webkit-mask-image:radial-gradient(ellipse 90% 70% at 50% 40%,#000 25%,transparent 100%);
  mask-image:radial-gradient(ellipse 90% 70% at 50% 40%,#000 25%,transparent 100%)}
/* свечение: маска растворяет края, --glow ставит скрипт по видимости */
.sec--dark::after{content:'';position:absolute;left:0;right:0;top:-110px;height:min(62%,540px);pointer-events:none;
  background-image:radial-gradient(ellipse 62% 100% at 50% 4%,var(--glow-a),transparent 72%),
                   radial-gradient(ellipse 34% 76% at 86% 14%,var(--glow-b),transparent 74%);
  -webkit-mask-image:linear-gradient(180deg,transparent 0,#000 34%,#000 56%,transparent 100%);
  mask-image:linear-gradient(180deg,transparent 0,#000 34%,#000 56%,transparent 100%);
  opacity:var(--glow,1);transition:opacity .9s var(--ease)}
.sec--dark > .wrap{position:relative;z-index:1}

.kick{display:inline-flex;align-items:center;gap:9px;margin-bottom:18px;
  font:700 12px/1 var(--mono);letter-spacing:.15em;text-transform:uppercase;color:var(--acc-t)}
.kick__d{width:7px;height:7px;border-radius:50%;background:currentColor;flex:none;
  box-shadow:0 0 0 4px color-mix(in srgb,currentColor 18%,transparent)}
.kick--warn{color:var(--warn)}

.hd{max-width:840px;margin-bottom:clamp(42px,4.6vw,68px)}
.hd--c{margin-inline:auto;text-align:center}
.hd__h{font-size:clamp(31px,4.1vw,54px);font-weight:800;line-height:1.06;letter-spacing:-.032em;text-wrap:balance}
.hd__p{margin-top:18px;font-size:18px;color:var(--tx2);max-width:680px}
.hd--c .hd__p{margin-inline:auto}

.tag{display:inline-flex;align-items:center;padding:5px 10px;border-radius:99px;
  font:600 11px/1.35 var(--mono);letter-spacing:.04em;
  background:color-mix(in srgb,var(--tx) 7%,transparent);color:var(--tx2)}
.tag--acc{background:var(--acc-w);color:var(--acc-t)}
.tag--ok{background:color-mix(in srgb,var(--ok) 15%,transparent);color:var(--ok)}
.tag--dim{background:transparent;color:var(--tx3)}
.dot{width:9px;height:9px;border-radius:50%;flex:none}
.dot--bad{background:var(--bad);box-shadow:0 0 0 4px color-mix(in srgb,var(--bad) 20%,transparent)}
.dot--ok{background:var(--ok);box-shadow:0 0 0 4px color-mix(in srgb,var(--ok) 20%,transparent)}

/* ── HERO ────────────────────────────────────────────── */
.hero{position:relative;overflow:hidden;padding-block:clamp(48px,5.5vw,90px) clamp(64px,7vw,112px);
  border-bottom:1px solid var(--line)}
.hero__bg{position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(ellipse 46% 52% at 74% 42%,var(--glow-a),transparent 70%),
                   linear-gradient(var(--grid) 1px,transparent 1px),
                   linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:auto,46px 46px,46px 46px}
.hero__svg{width:100%;height:100%;display:block}

.dial circle{fill:none;stroke:color-mix(in srgb,var(--tx) 12%,transparent)}
.dial__a{stroke-dasharray:2 12;animation:spin 90s linear infinite;transform-origin:0 0}
.dial__b{stroke-dasharray:1 8;animation:spin 60s linear infinite reverse;transform-origin:0 0}
.dial__c{stroke:color-mix(in srgb,var(--acc) 22%,transparent);stroke-dasharray:14 10;
  animation:spin 40s linear infinite;transform-origin:0 0}
@keyframes spin{to{transform:rotate(360deg)}}
.flow path{fill:none;stroke-linecap:round}
.flow__p{stroke:color-mix(in srgb,var(--tx) 20%,transparent);stroke-width:1.6;stroke-dasharray:6 9;
  animation:dash 3.4s linear infinite}
.flow__j{stroke:var(--acc);stroke-width:2.6;opacity:.6}
@keyframes dash{to{stroke-dashoffset:-30}}
.pkt circle{fill:var(--cy)}
.node{fill:var(--acc)}
.node__pulse{fill:none;stroke:var(--acc);stroke-width:1.6;transform-origin:610px 330px;
  animation:pulse 2.8s ease-out infinite}
@keyframes pulse{0%{transform:scale(.5);opacity:.9}100%{transform:scale(2.6);opacity:0}}

/* Широкий экран: потоки входят в карточку слева, одна линия выходит справа.
   Аспект полотна = аспекту viewBox (3:2), поэтому slice не кадрирует. */
@media (min-width:1100px){
  .hero{
    --hsw:max(2200px,calc(100vw + 320px));                  /* полотно SVG */
    --wrp:min(var(--wrap),calc(100% - 48px));               /* ширина .wrap */
    --wrpv:min(var(--wrap),calc(100vw - 48px));             /* она же без %, для transform */
    --hgp:clamp(36px,4vw,70px);
    --dscl:calc(50% + .06 * var(--wrp) + .44 * var(--hgp)); /* левый край .disc */
  }
  .hero__svg{position:absolute;width:var(--hsw);height:auto;aspect-ratio:3/2;
    left:calc(var(--dscl) - .50833 * var(--hsw));
    top:calc(50% - .275 * var(--hsw) - 11px)}
  .flow__j{transform:translateX(calc(.24 * (var(--wrpv) - var(--hgp))))}  /* от правого края .disc */
  .dial{transform:translate(610px,330px) translateX(calc(.12 * (var(--wrpv) - var(--hgp)))) scale(.58)}
  /* слева фон гасим: там текст. Потоки проявляются по мере приближения к карточке */
  .hero__bg{
    -webkit-mask-image:linear-gradient(90deg,transparent 0,rgba(0,0,0,.14) 30%,rgba(0,0,0,.5) 46%,#000 60%);
    mask-image:linear-gradient(90deg,transparent 0,rgba(0,0,0,.14) 30%,rgba(0,0,0,.5) 46%,#000 60%)}
}

.hero__in{position:relative;display:grid;grid-template-columns:minmax(0,1.12fr) minmax(340px,.88fr);
  gap:clamp(36px,4vw,70px);align-items:center}
.hero__h{font-size:clamp(31px,3.75vw,52px);font-weight:800;line-height:1.06;letter-spacing:-.036em;margin-bottom:22px}
.hero__acc{color:var(--bad)}
.hero__lead{font-size:clamp(17.5px,1.35vw,20px);line-height:1.5;margin-bottom:15px;max-width:600px}
.hero__lead2{font-size:16.5px;line-height:1.6;color:var(--tx2);margin-bottom:30px;max-width:590px}
.hero__act{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:32px}
.hero__sig{padding-top:20px;border-top:1px solid var(--line);font-size:14.5px;line-height:1.55;
  color:var(--tx3);max-width:560px}

/* виджет расхождения */
.disc{border-radius:var(--r);overflow:hidden;border:1px solid var(--line2);
  background:color-mix(in srgb,var(--panel) 94%,transparent);
  backdrop-filter:blur(10px);box-shadow:var(--sh-h)}
.disc__h{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;
  padding:15px 20px;border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--tx) 3%,transparent)}
.disc__t{font:700 11.5px/1.3 var(--mono);letter-spacing:.07em;text-transform:uppercase;color:var(--tx2)}
.disc__b{padding:4px 20px 18px}
.disc__r{display:grid;grid-template-columns:1fr auto;align-items:baseline;gap:3px 14px;
  padding-block:14px;border-bottom:1px solid var(--line);transition:opacity .5s var(--ease)}
.disc__w{font-size:15px;font-weight:600}
.disc__v{position:relative;font:700 26px/1 var(--mono);letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.disc__v i{font-size:14px;font-weight:500;margin-left:2px;color:var(--tx3)}
.disc__v::after{content:'';position:absolute;left:-3px;right:-3px;top:52%;height:2px;border-radius:2px;
  background:var(--bad);transform:scaleX(0);transform-origin:left;transition:transform .45s var(--ease)}
.disc__s{grid-column:1/-1;font:400 12px/1.3 var(--mono);color:var(--tx3)}
.disc__o{display:flex;align-items:center;gap:11px;margin-top:8px;padding-top:18px;border-top:2px solid var(--line2)}
.disc__ol{font-size:14.5px;font-weight:600;margin-right:auto}
.disc__ov{font:800 30px/1 var(--mono);letter-spacing:-.035em;font-variant-numeric:tabular-nums}
.disc__ov i{font-size:13px;font-weight:500;margin-left:4px}
.disc__o--bad .disc__ov{color:var(--bad)}
.disc__o--ok .disc__ov{color:var(--ok)}
.disc__meta{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px}
.disc__o--ok,.disc__meta{display:none}
.disc__b[data-state="agreed"] .disc__o--bad{display:none}
.disc__b[data-state="agreed"] .disc__o--ok{display:flex}
.disc__b[data-state="agreed"] .disc__meta{display:flex}
.disc__b[data-state="agreed"] .disc__r{opacity:.42}
.disc__b[data-state="agreed"] .disc__v::after{transform:scaleX(1)}
/* переключатель: орган управления, но не конкурент CTA рядом */
.disc__sw{display:flex;align-items:center;justify-content:space-between;gap:12px;width:100%;cursor:pointer;
  padding:15px 20px;border-top:1px solid color-mix(in srgb,var(--acc) 26%,transparent);
  background:color-mix(in srgb,var(--acc) 15%,transparent);color:var(--acc-t);
  font:700 12.5px/1 var(--mono);letter-spacing:.05em;text-transform:uppercase;text-align:left;
  transition:background-color .2s,box-shadow .22s var(--ease)}
.disc__sw:hover{background:color-mix(in srgb,var(--acc) 26%,transparent);
  box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--acc) 30%,transparent)}
.disc__sw:active{background:color-mix(in srgb,var(--acc) 36%,transparent);
  box-shadow:inset 0 2px 7px -3px color-mix(in srgb,var(--acc) 75%,transparent)}
/* тумблер справа */
.disc__sw::after{content:'';flex:none;width:36px;height:20px;border-radius:99px;
  background:radial-gradient(circle 6px at 50% 50%,var(--acc) 96%,transparent) no-repeat 0 0/20px 20px;
  box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--acc) 42%,transparent);
  transition:background-position .3s var(--ease)}
.disc__sw[aria-pressed="true"]::after{background-position:16px 0}
/* два «вздоха» после появления карточки — дальше тихо */
.disc.is-in .disc__sw:not(.is-used)::after{animation:swhint 1.8s var(--ease) .6s 2 both}
@keyframes swhint{
  0%,100%{box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--acc) 42%,transparent),
                     0 0 0 0 color-mix(in srgb,var(--acc) 34%,transparent)}
  45%{box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--acc) 42%,transparent),
                 0 0 0 5px color-mix(in srgb,var(--acc) 0%,transparent)}
}

/* ── КАРТОЧКИ ПРОБЛЕМ ────────────────────────────────── */
.symp{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.symp__i{position:relative;padding:30px;border-radius:var(--r);border:1px solid var(--line);background:var(--panel);
  box-shadow:var(--sh);transition:transform .3s var(--ease),border-color .3s,box-shadow .3s}
/* блик по верхней кромке карточек */
.oc::before,.case::before,.symp__i::before{content:'';position:absolute;z-index:1;pointer-events:none;
  top:0;left:var(--r);right:var(--r);height:1px;
  background:linear-gradient(90deg,transparent,var(--edge) 50%,transparent)}
.symp__i:hover{transform:translateY(-4px);border-color:var(--line2);box-shadow:var(--sh-h)}
.symp__ic{width:40px;height:40px;margin-bottom:16px;fill:none;stroke:var(--warn);stroke-width:2;
  stroke-linecap:round;stroke-linejoin:round}
.symp__ic .thin{stroke-width:1.4;opacity:.5}
.symp__i h3{font-size:20px;font-weight:700;letter-spacing:-.022em;line-height:1.26;margin-bottom:10px}
.symp__i p{font-size:16px;color:var(--tx2)}

/* ── КАЛЬКУЛЯТОРЫ ────────────────────────────────────── */
.calc{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:clamp(20px,2.6vw,36px);align-items:start}
.calc__c{display:grid;gap:24px;padding:clamp(22px,2.8vw,32px);border-radius:var(--r);
  border:1px solid var(--line);background:var(--panel);box-shadow:var(--sh)}
.fld label{display:block;margin-bottom:11px;font-size:14.5px;color:var(--tx2)}
.fld__r{display:flex;align-items:center;gap:16px}
.fld__o{flex:none;min-width:86px;padding:9px 12px;border-radius:var(--r3);text-align:center;
  background:var(--acc-w);color:var(--acc-t);font:700 17px/1 var(--mono);font-variant-numeric:tabular-nums}

input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:26px;background:transparent;cursor:pointer}
input[type=range]::-webkit-slider-runnable-track{height:6px;border-radius:99px;
  background:linear-gradient(90deg,var(--acc) var(--p,50%),color-mix(in srgb,var(--tx) 14%,transparent) var(--p,50%))}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:22px;height:22px;margin-top:-8px;
  border-radius:50%;background:var(--panel);border:4px solid var(--acc);cursor:grab;
  box-shadow:0 2px 10px rgba(0,0,0,.28);transition:transform .18s var(--ease),box-shadow .2s}
input[type=range]:hover::-webkit-slider-thumb{transform:scale(1.18);
  box-shadow:0 0 0 8px color-mix(in srgb,var(--acc) 20%,transparent)}
input[type=range]:active::-webkit-slider-thumb{cursor:grabbing;transform:scale(1.05)}
input[type=range]::-moz-range-track{height:6px;border-radius:99px;background:color-mix(in srgb,var(--tx) 14%,transparent)}
input[type=range]::-moz-range-progress{height:6px;border-radius:99px;background:var(--acc)}
input[type=range]::-moz-range-thumb{width:16px;height:16px;border-radius:50%;background:var(--panel);
  border:4px solid var(--acc);cursor:grab}

.calc__r{padding:clamp(24px,2.8vw,36px);border-radius:var(--r);
  border:1px solid color-mix(in srgb,var(--acc) 32%,transparent);
  background:radial-gradient(120% 90% at 80% 0%,var(--glow-a),transparent 62%),var(--panel2);
  box-shadow:var(--sh)}
.calc__l{font:700 11.5px/1.4 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--tx3);margin-bottom:12px}
.calc__big{display:flex;align-items:baseline;flex-wrap:wrap;gap:10px;
  font:800 clamp(42px,5.4vw,68px)/1 var(--mono);letter-spacing:-.05em;font-variant-numeric:tabular-nums;color:var(--tx);
  text-shadow:0 0 30px var(--big-g)}
.calc--lt .calc__big{text-shadow:0 0 30px var(--big-gw)}
.calc__big i{font:600 15px/1 var(--sans);letter-spacing:0;color:var(--tx2)}
.calc__bar{height:8px;border-radius:99px;background:color-mix(in srgb,var(--tx) 12%,transparent);
  overflow:hidden;margin:20px 0 22px}
.calc__fill{display:block;height:100%;border-radius:99px;width:30%;
  background:linear-gradient(90deg,var(--acc),var(--cy));transition:width .5s var(--ease)}
.calc__s{display:grid;gap:1px;background:var(--line);border-radius:var(--r2);overflow:hidden;margin-bottom:18px}
.calc__s > div{display:flex;flex-wrap:wrap;gap:6px;justify-content:space-between;align-items:baseline;
  padding:13px 16px;background:var(--panel)}
.calc__s dt{font-size:14.5px;color:var(--tx2)}
.calc__s dd{font:700 16px/1 var(--mono);font-variant-numeric:tabular-nums}
.calc__n{font-size:14px;line-height:1.6;color:var(--tx3)}
.calc__n b{color:var(--tx2)}
.calc--lt .calc__r{border-color:color-mix(in srgb,var(--warn) 34%,transparent);
  background:radial-gradient(120% 90% at 80% 0%,color-mix(in srgb,var(--warn) 16%,transparent),transparent 62%),var(--panel2)}
.calc--lt .calc__fill{background:linear-gradient(90deg,var(--warn),var(--bad))}

.fte{display:flex;flex-wrap:wrap;gap:6px;margin:18px 0 22px}
.fte i{width:19px;height:42px;border-radius:5px;border:1px solid var(--line);
  background:color-mix(in srgb,var(--tx) 10%,transparent);animation:pop .45s var(--ease) backwards}
.fte i.on{background:linear-gradient(180deg,var(--warn),color-mix(in srgb,var(--warn) 70%,var(--bad)))}
.fte i.part{background:linear-gradient(180deg,var(--warn) var(--f,50%),
  color-mix(in srgb,var(--tx) 10%,transparent) var(--f,50%))}
@keyframes pop{from{transform:scaleY(.15);opacity:0}to{transform:none;opacity:1}}

/* призыв в середине страницы */
.mid{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:14px 26px;
  margin-top:clamp(34px,4vw,52px);padding:24px 28px;border-radius:var(--r);
  border:1px dashed color-mix(in srgb,var(--acc) 38%,transparent);text-align:center;
  background-image:linear-gradient(105deg,
    color-mix(in srgb,var(--acc) 9%,transparent) 0%,
    color-mix(in srgb,var(--cy) 8%,transparent) 34%,
    color-mix(in srgb,var(--acc) 13%,transparent) 66%,
    color-mix(in srgb,var(--acc) 8%,transparent) 100%);
  background-size:240% 100%;animation:midflow 26s ease-in-out infinite}
@keyframes midflow{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}
.mid__t{font-size:18px;font-weight:600}

/* ── УСЛУГИ ──────────────────────────────────────────── */
.offr{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:18px}
.oc{position:relative;padding:clamp(24px,2.5vw,32px);border-radius:var(--r);
  border:1px solid var(--line);background:var(--panel);box-shadow:var(--sh);overflow:hidden;
  transition:transform .3s var(--ease),border-color .3s,box-shadow .3s}
.oc:hover{transform:translateY(-5px);border-color:var(--line2);box-shadow:var(--sh-h)}
/* подсветка следует за курсором, а не закреплена за карточкой */
.oc--hl{border-color:var(--line);background:var(--panel)}
.oc > *{position:relative;z-index:2}
.oc::after{content:'';position:absolute;inset:0;z-index:0;pointer-events:none;opacity:0;
  background:linear-gradient(90deg,transparent,
      color-mix(in srgb,var(--acc) 62%,transparent) 50%,transparent)
      top/calc(100% - 2*var(--r)) 1px no-repeat,
    radial-gradient(120% 80% at 50% 0%,var(--glow-a),transparent 60%);
  transition:opacity .34s var(--ease)}
@media (hover:hover){
  .oc:hover{border-color:color-mix(in srgb,var(--acc) 58%,transparent);
    box-shadow:var(--sh-h),0 16px 44px -26px color-mix(in srgb,var(--acc) 85%,transparent)}
  .oc:hover::after{opacity:1}
}
.oc__t{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.oc__n{font:800 30px/1 var(--mono);color:color-mix(in srgb,var(--tx) 12%,transparent);letter-spacing:-.04em}
.oc h3{font-size:22px;font-weight:700;line-height:1.2;letter-spacing:-.025em;margin-bottom:13px}
.oc__p{font-size:15.5px;color:var(--tx2);margin-bottom:20px}
.oc__l{display:grid;gap:10px;padding-top:18px;border-top:1px solid var(--line)}
.oc__l li{position:relative;padding-left:24px;font-size:15px;line-height:1.5}
.oc__l li::before{content:'';position:absolute;left:2px;top:8px;width:9px;height:5px;
  border-left:2px solid var(--ok);border-bottom:2px solid var(--ok);transform:rotate(-45deg)}

.bnd{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:18px;margin-top:20px}
.bnd__c{padding:24px 26px;border-radius:var(--r);border:1px dashed var(--line2);
  background:color-mix(in srgb,var(--tx) 2%,transparent)}
.bnd__c h3{font:700 11.5px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;
  color:var(--tx3);margin-bottom:11px}
.bnd__c p{font-size:15.5px;color:var(--tx2)}

/* ── ЦЕПОЧКА ─────────────────────────────────────────── */
.lin{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.lin__s{position:relative;padding:22px 20px;border-radius:var(--r2);border:1px solid var(--line);
  background:var(--panel);display:flex;flex-direction:column;gap:8px;box-shadow:var(--sh);
  transition:transform .3s var(--ease),border-color .3s}
.lin__s:hover{transform:translateY(-4px);border-color:var(--line2)}
.lin__s--e{border-color:color-mix(in srgb,var(--acc) 36%,transparent);background:var(--panel2)}
.lin__n{font:700 11px/1 var(--mono);letter-spacing:.1em;color:var(--tx3);transition:color .28s var(--ease)}
.lin__s:hover .lin__n{color:var(--acc-t)}
.lin__s h3{font-size:17.5px;font-weight:700;letter-spacing:-.02em}
.lin__s p{font-size:14px;color:var(--tx2);margin-bottom:auto;line-height:1.48}
.lin__s .tag{align-self:flex-start;margin-top:8px}
.lin__s::after{content:'→';position:absolute;right:-13px;top:50%;transform:translateY(-50%);z-index:2;
  width:26px;height:26px;display:grid;place-items:center;border-radius:50%;
  background:var(--bg2);color:var(--tx3);font:400 14px/1 var(--mono)}
.lin__s--e::after{display:none}
.lin__note{margin-top:24px;font-size:16px;color:var(--tx2);max-width:720px}

/* ── КЕЙСЫ ───────────────────────────────────────────── */
.cases{display:grid;grid-template-columns:repeat(auto-fit,minmax(310px,1fr));gap:18px}
.case{position:relative;padding:clamp(24px,2.5vw,30px);border-radius:var(--r);border:1px solid var(--line);
  background:var(--panel);box-shadow:var(--sh);transition:transform .3s var(--ease),border-color .3s}
.case:hover{transform:translateY(-4px);border-color:var(--line2)}
.case__h{font-size:20px;font-weight:700;line-height:1.24;letter-spacing:-.022em;margin-bottom:15px;
  padding-bottom:15px;border-bottom:1px solid var(--line)}
.case p + p{margin-top:12px}
.case__q{font-size:15.5px;color:var(--tx2)}
.case__a{font-size:15.5px}
.case__r{font-size:16px;font-weight:600;color:var(--ok)}
.case__l{margin-top:15px;padding-top:13px;border-top:1px dashed var(--line);
  font:400 13px/1.55 var(--mono);color:var(--tx3)}

.chart{margin-top:16px;display:grid;gap:10px}
.chart__row{display:grid;grid-template-columns:104px 1fr auto;align-items:center;gap:12px}
.chart__l{font:500 12px/1.3 var(--mono);color:var(--tx3)}
.chart__t{height:22px;border-radius:99px;background:color-mix(in srgb,var(--tx) 8%,transparent);overflow:hidden}
.chart__f{display:block;height:100%;border-radius:99px;width:0;transition:width 1.1s var(--ease)}
.chart__f--o{background:repeating-linear-gradient(115deg,
  color-mix(in srgb,var(--tx) 22%,transparent) 0 7px,color-mix(in srgb,var(--tx) 12%,transparent) 7px 14px)}
.chart__f--n{min-width:5px;box-shadow:var(--sheen-sh);
  background-image:linear-gradient(100deg,transparent 34%,var(--sheen-c) 50%,transparent 66%),
                   linear-gradient(90deg,var(--acc),var(--cy));
  background-size:230% 100%,auto;background-position:-70% 0,0 0;background-repeat:no-repeat}
.chart.is-in .chart__f{width:var(--w)}
.chart.is-in .chart__f--n{animation:var(--sheen)}
@keyframes sheen{0%{background-position:-70% 0,0 0}60%,100%{background-position:170% 0,0 0}}
.chart__v{font:700 14px/1 var(--mono);white-space:nowrap;font-variant-numeric:tabular-nums}
.chart__cap{grid-column:1/-1;font:700 12px/1 var(--mono);letter-spacing:.07em;
  text-transform:uppercase;color:var(--tx3)}
.chart__cap--a{display:inline-flex;justify-self:start;padding:8px 13px;border-radius:99px;
  background:var(--acc-w);color:var(--acc-t);letter-spacing:.08em}
.chart--b .chart__row{grid-template-columns:130px 1fr auto}

.load{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:clamp(26px,3vw,50px);
  margin-top:clamp(42px,4.6vw,68px);padding-top:clamp(34px,3.6vw,50px);border-top:1px solid var(--line)}
.load__h{font-size:clamp(22px,2.3vw,30px);font-weight:800;letter-spacing:-.028em;line-height:1.14;margin-bottom:13px}
.load__p{font-size:16.5px;color:var(--tx2);margin-bottom:24px}
.load__f{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:1px;
  background:var(--line);border-radius:var(--r2);overflow:hidden}
.load__f > div{padding:16px;background:var(--panel)}
.load__f dt{font:600 10.5px/1.2 var(--mono);letter-spacing:.1em;text-transform:uppercase;
  color:var(--tx3);margin-bottom:8px}
.load__f dd{font:700 21px/1 var(--mono);letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.load__f dd i{font-size:12px;font-weight:500;margin-left:3px;color:var(--tx3)}
.load__f .ok dd{color:var(--ok)}
.load__more{margin-top:22px;font-size:15.5px;color:var(--tx2)}

/* ── КОГДА НЕ НУЖЕН ──────────────────────────────────── */
.not{display:grid;gap:12px;max-width:940px}
.not li{padding:20px 24px;border-radius:var(--r2);border:1px solid var(--line);background:var(--panel);
  font-size:16.5px;line-height:1.55;color:var(--tx2);box-shadow:var(--sh);
  transition:transform .25s var(--ease),border-color .25s}
.not li:hover{transform:translateX(6px);border-color:var(--line2)}
.not b{color:var(--tx);font-weight:700}

/* ── ПЕРВЫЙ ШАГ ──────────────────────────────────────── */
.path{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:18px}
.path li{padding:26px;border-radius:var(--r);border:1px solid var(--line);background:var(--panel);
  box-shadow:var(--sh);transition:transform .3s var(--ease),border-color .3s}
.path li:hover{transform:translateY(-4px);border-color:var(--line2)}
.path__t{display:inline-flex;padding:6px 12px;border-radius:99px;background:var(--acc-w);color:var(--acc-t);
  font:700 12px/1 var(--mono);letter-spacing:.06em;margin-bottom:15px}
.path li h3{font-size:18px;font-weight:700;letter-spacing:-.02em;margin-bottom:8px}
.path li p{font-size:15.5px;color:var(--tx2)}
.path__e{margin-top:26px;font-size:16px;color:var(--tx2);max-width:760px;text-align:center;margin-inline:auto}

/* ── ВОПРОСЫ ─────────────────────────────────────────── */
.faq{display:grid;gap:10px;max-width:900px}
.faq__i{border-radius:var(--r2);border:1px solid var(--line);background:var(--panel);overflow:hidden;
  box-shadow:var(--sh);transition:border-color .25s,background-color .25s}
.faq__i:hover{border-color:var(--line2)}
/* .js ставит скрипт: при закрытии [open] ещё висит, а вид уже закрытый */
.faq__i[open]:not(.js),.faq__i.is-open{border-color:color-mix(in srgb,var(--acc) 36%,transparent);background:var(--panel2)}
.faq__i summary{display:flex;align-items:center;justify-content:space-between;gap:18px;cursor:pointer;
  padding:20px 24px;font-size:17.5px;font-weight:600;letter-spacing:-.015em;list-style:none;transition:color .2s}
.faq__i summary::-webkit-details-marker{display:none}
.faq__i summary:hover{color:var(--acc-t)}
.faq__x{position:relative;width:24px;height:24px;flex:none;border-radius:50%;background:var(--acc-w);
  transition:transform .35s var(--ease),background-color .25s}
.faq__x::before,.faq__x::after{content:'';position:absolute;left:50%;top:50%;background:var(--acc);
  border-radius:2px;transform:translate(-50%,-50%)}
.faq__x::before{width:10px;height:2px}
.faq__x::after{width:2px;height:10px;transition:transform .35s var(--ease),opacity .25s}
.faq__i[open]:not(.js) .faq__x,.faq__i.is-open .faq__x{transform:rotate(180deg);
  background:color-mix(in srgb,var(--acc) 26%,transparent)}
.faq__i[open]:not(.js) .faq__x::after,.faq__i.is-open .faq__x::after{transform:translate(-50%,-50%) scaleY(0);opacity:0}
/* высоту ведёт JS; без скрипта блок просто раскрыт */
.faq__w{overflow:hidden}
.faq__c{overflow:hidden}
.faq__c p{padding:0 24px 22px;font-size:16px;color:var(--tx2);max-width:760px;
  opacity:0;transform:translateY(-9px);transition:opacity .34s ease .06s,transform .42s var(--ease) .06s}
.faq__i[open]:not(.js) .faq__c p,.faq__i.is-open .faq__c p{opacity:1;transform:none}

/* ── ОПЫТ ────────────────────────────────────────────── */
.tl{display:grid;gap:12px;max-width:940px}
.tl li{display:grid;grid-template-columns:158px 1fr;gap:8px 26px;padding:22px 26px;border-radius:var(--r2);
  border:1px solid var(--line);background:var(--panel);box-shadow:var(--sh);
  transition:transform .25s var(--ease),border-color .25s}
.tl li:hover{transform:translateX(6px);border-color:var(--line2)}
.tl__y{font:700 13px/1.7 var(--mono);color:var(--acc-t);letter-spacing:.02em}
.tl__c h3{font-size:18px;font-weight:700;letter-spacing:-.02em;margin-bottom:7px}
.tl__c p{font-size:15.5px;color:var(--tx2)}
.tl__s{margin-top:22px;font:400 14px/1.7 var(--mono);color:var(--tx3);max-width:860px}
.tl__s b{color:var(--tx2)}

/* ── КОНТАКТ ─────────────────────────────────────────── */
.cta{position:relative;overflow:hidden;padding-block:clamp(66px,7.5vw,112px);
  background:linear-gradient(135deg,var(--cta-a),var(--cta-b));color:var(--cta-tx)}
.cta__bg{position:absolute;inset:0;pointer-events:none;opacity:.6;
  background-image:radial-gradient(circle at 22% 30%,rgba(34,211,238,.26),transparent 46%),
                   radial-gradient(circle at 82% 76%,rgba(77,141,255,.3),transparent 52%),
                   linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:auto,auto,46px 46px,46px 46px}
/* очень медленное «дыхание» пятен */
.cta::before{content:'';position:absolute;inset:-22%;pointer-events:none;opacity:.5;
  background-image:radial-gradient(circle at 32% 36%,rgba(34,211,238,.22),transparent 44%),
                   radial-gradient(circle at 70% 66%,rgba(77,141,255,.26),transparent 46%);
  animation:ctadrift 27s ease-in-out infinite;will-change:transform}
@keyframes ctadrift{0%,100%{transform:translate3d(0,0,0) scale(1)}
  50%{transform:translate3d(3%,-2.4%,0) scale(1.09)}}
.cta__in{position:relative;display:grid;grid-template-columns:minmax(0,1.5fr) minmax(260px,.8fr);
  gap:clamp(28px,3.6vw,60px);align-items:center}
.cta__h{font-size:clamp(28px,3.4vw,44px);font-weight:800;line-height:1.08;letter-spacing:-.032em;text-wrap:balance}
.cta__p{margin-top:15px;font-size:18px;color:var(--cta-p);max-width:540px}
.cta__r{display:flex;flex-direction:column;align-items:stretch;gap:12px}
.cta .btn--gh{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.32);color:#e2ecfb;
  font-family:var(--mono);font-size:14.5px}
.cta .btn--gh:hover{background:rgba(255,255,255,.2);border-color:#fff;color:#fff}

/* ── ПОДВАЛ ──────────────────────────────────────────── */
.ft{padding-block:24px;border-top:1px solid var(--line);background:var(--bg)}
.ft__in{display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;align-items:center;
  font:400 13.5px/1 var(--mono);color:var(--tx3)}
.ft__n{display:flex;gap:20px}
.ft__n a{cursor:pointer;border-bottom:1px solid transparent;transition:color .2s,border-color .2s}
.ft__n a:hover{color:var(--acc-t);border-color:currentColor}

/* ── КНОПКА НАВЕРХ ───────────────────────────────────── */
.up{position:fixed;right:22px;bottom:22px;z-index:95;width:48px;height:48px;border-radius:50%;
  display:grid;place-items:center;background:var(--acc);color:#fff;
  box-shadow:0 6px 24px -6px color-mix(in srgb,var(--acc) 70%,transparent);
  opacity:0;visibility:hidden;transform:translateY(14px) scale(.9);
  transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s,background-color .2s}
.up svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:2.2;
  stroke-linecap:round;stroke-linejoin:round}
.up.is-on{opacity:1;visibility:visible;transform:none}
.up:hover{background:var(--acc-d);transform:translateY(-3px)}
.up:active{transform:translateY(-3px) scale(.93)}
.up::after{content:'';position:absolute;inset:0;border-radius:50%;pointer-events:none;
  border:1.5px solid currentColor;opacity:0}
.up:hover::after{animation:ring 1.9s var(--ease) infinite}
@keyframes ring{0%{transform:scale(1);opacity:.55}70%{transform:scale(1.52);opacity:0}100%{opacity:0}}

/* ── ПОЯВЛЕНИЕ ПРИ ПРОКРУТКЕ ─────────────────────────── */
.rv{opacity:0;transform:translateY(24px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.rv.is-in{opacity:1;transform:none}

/* ── АДАПТИВ ─────────────────────────────────────────── */
@media (max-width:1100px){
  .hero__in{grid-template-columns:1fr}
  .disc{max-width:600px}
  .lin{grid-template-columns:repeat(2,1fr)}
  .lin__s::after{display:none}
  .calc{grid-template-columns:1fr}
  .cta__in{grid-template-columns:1fr}
}

@media (max-width:960px){
  .nav{position:fixed;top:var(--bar);left:0;right:0;flex-direction:column;gap:0;padding:8px 24px 20px;
    background:color-mix(in srgb,var(--bg) 97%,transparent);backdrop-filter:blur(18px);
    border-bottom:1px solid var(--line);box-shadow:var(--sh-h);
    transform:translateY(-130%);transition:transform .38s var(--ease)}
  .nav.is-open{transform:none}
  .nav a{padding:14px 4px;border-radius:0;border-bottom:1px solid var(--line);font-size:16px}
  .nav a:hover{background:transparent}
  .burger{display:flex}
  .bar__cta{display:none}
  .hero__bg{opacity:.45}
  .node,.node__pulse,.pkt,.flow__j{display:none}
  .symp{grid-template-columns:1fr}
}

/* карусели вместо бесконечной ленты карточек */
@media (max-width:720px){
  .cards,.bnd{display:flex;gap:12px;overflow-x:auto;overflow-y:hidden;
    scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
    padding:4px 17px 14px;margin-inline:-17px;scrollbar-width:none}
  .cards::-webkit-scrollbar,.bnd::-webkit-scrollbar{display:none}
  .cards > *,.bnd > *{flex:0 0 84%;scroll-snap-align:center;margin:0}
  .cards > *:hover,.bnd > *:hover{transform:none}
}

@media (max-width:640px){
  body{font-size:16.5px}
  .wrap{width:calc(100% - 34px)}
  .sec{padding-block:clamp(56px,11vw,80px)}
  .hd{margin-bottom:30px}
  .hd__p{margin-top:14px;font-size:16.5px}
  .hero{padding-block:36px 52px}
  .hero__act .btn{flex:1 1 100%}
  .hero__lead2{margin-bottom:24px}
  .symp__i{padding:24px}
  .calc__c{gap:20px}
  .lin{grid-template-columns:1fr;gap:8px}
  .lin__s{padding:18px}
  .chart__row{grid-template-columns:1fr;gap:7px}
  .chart--b .chart__row{grid-template-columns:1fr}
  .chart__v{display:flex;gap:8px;align-items:baseline}
  .tl li{grid-template-columns:1fr;padding:18px 20px}
  .not li{padding:17px 20px}
  .not li:hover,.tl li:hover{transform:none}
  .faq__i summary{font-size:16.5px;padding:17px 18px}
  .faq__c p{padding:0 18px 18px}
  /* ползунок и значение — в одну строку */
  .fld__r{gap:11px}
  .fld__o{min-width:64px;padding:7px 8px;font-size:15px;white-space:nowrap}
  .calc__big{font-size:clamp(38px,13vw,52px)}
  .mid{padding:20px;gap:12px}
  .load{gap:26px}
  .up{right:14px;bottom:14px;width:44px;height:44px}
  /* тяжёлые эффекты — прочь с узких экранов */
  .cta::before,.mid,.chart.is-in .chart__f--n{animation:none}
  .sec--dark::after{height:min(42%,260px)}
  .oc:hover{box-shadow:var(--sh-h)}
  .calc__big,.calc--lt .calc__big{text-shadow:none}
  .ft__in{flex-direction:column;align-items:flex-start;gap:10px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;
    transition-duration:.01ms !important}
  .rv{opacity:1;transform:none}
  .chart__f{width:var(--w)}
  .mid,.cta::before,.chart.is-in .chart__f--n{animation:none}
  .cta::before{transform:none}
  .up:hover::after{animation:none;opacity:0}
  .sec--dark::after{opacity:1}
  .faq__w{transition:none}
  .disc.is-in .disc__sw::after{animation:none}
}