/* ===================== 4. УСЛУГИ: свайп вбок ===================== */
.rail{position:relative;z-index:4;background:var(--milk);border-radius:28px 28px 0 0;margin-top:-28px;min-height:100svh;
  padding:calc(var(--hdr) + 12px) 0 110px;display:flex;flex-direction:column;justify-content:center;overflow:hidden}
.rail-head{display:flex;align-items:end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:20px}
.rail-head h2{font-size:clamp(52px,16vw,170px);line-height:.9}
.rail-head .btn{width:100%}
.rail-track{display:flex;gap:12px;overflow-x:auto;scroll-snap-type:x mandatory;scroll-padding-inline:var(--gut);padding:6px var(--gut) 18px;
  scrollbar-width:none;overscroll-behavior-x:contain;-webkit-overflow-scrolling:touch;outline:none}
.rail-track::-webkit-scrollbar{display:none}
.rail-track.hint{animation:rail-hint 1.3s var(--e) .3s 1}
@keyframes rail-hint{35%{transform:translateX(-44px)}}
.rcard{flex:0 0 min(80vw,380px);scroll-snap-align:start;display:flex;flex-direction:column;gap:10px;padding:20px;border-radius:24px;
  background:#fff;color:var(--ink);box-shadow:0 1px 0 rgba(10,10,11,.06),0 22px 40px -30px rgba(10,10,11,.45)}
.rcard-n{font:500 11px/1 var(--f-mono);letter-spacing:.1em;color:#6B6860}
.rcard h3{font-size:clamp(28px,8vw,44px);line-height:1;letter-spacing:-.05em}
.rcard-d{font-size:14.5px;line-height:1.4;color:#6B6860}
.rcard ul{list-style:none;margin:4px 0 0;padding:0}
.rcard li{display:flex;gap:10px;padding:9px 0;border-top:1px solid rgba(10,10,11,.1);font-size:14.5px;line-height:1.35}
.rcard li::before{content:"+";font:600 14px/1.35 var(--f-mono)}
.rcard-foot{margin-top:auto;padding-top:14px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px}
.rcard-foot b{font:700 17px/1.2 var(--f-head);letter-spacing:-.03em}
.rcard-foot a{display:inline-flex;align-items:center;gap:6px;min-height:42px;padding:0 16px;border-radius:100px;background:var(--ink);color:var(--lemon);font-weight:600;font-size:14px}
.rcard-foot a i{font-style:normal;transition:transform .4s var(--e)}
@media (hover:hover){.rcard-foot a:hover i{transform:translateX(4px)}}
.rcard-lemon{background:var(--lemon)}
.rcard-lemon .rcard-d,.rcard-lemon .rcard-n{color:rgba(10,10,11,.65)}
.rcard-lemon li{border-color:rgba(10,10,11,.15)}
.rail-nav{display:flex;align-items:center;justify-content:space-between;gap:12px}
.rail-dots{display:flex;gap:6px}
.rail-dots i{width:8px;height:8px;border-radius:8px;background:rgba(10,10,11,.2);transition:width .4s var(--e),background .3s}
.rail-dots i.on{width:28px;background:var(--ink)}
.rail-arrows{display:flex;gap:8px}
.rail-arrows button{width:50px;height:50px;border-radius:50%;box-shadow:inset 0 0 0 1.5px rgba(10,10,11,.2);font-size:18px;color:var(--ink);transition:background .3s,color .3s,opacity .3s}
.rail-arrows button:disabled{opacity:.3}
@media (hover:hover){.rail-arrows button:not(:disabled):hover{background:var(--ink);color:var(--lemon)}}
@media (min-width:900px){
  .rail-head .btn{width:auto}
  .rcard{flex-basis:360px;padding:26px}
  .rail-track{padding-inline:max(var(--gut),calc((100vw - var(--wrap)) / 2 + var(--gut)));scroll-padding-inline:max(var(--gut),calc((100vw - var(--wrap)) / 2 + var(--gut)))}
}

/* ===================== 5. КЕЙСЫ ===================== */
.cases{position:relative;z-index:5;margin-top:-28px;padding:calc(var(--hdr) + 20px) 0 110px;background:var(--bg);border-radius:28px 28px 0 0;
  box-shadow:0 -1px 0 rgba(242,208,43,.3)}
.cases-head{margin-bottom:22px}
.cases-head .label{margin-bottom:10px}
.cases-head h2{font-size:clamp(30px,8.4vw,76px);max-width:13ch}
.stack{display:grid;gap:18px}
.case-card{--cover:0;position:sticky;top:calc(var(--hdr) + 10px + var(--i,0) * 12px);display:flex;flex-direction:column;min-height:72svh;
  border-radius:26px;overflow:hidden;background:var(--bg-3);box-shadow:inset 0 0 0 1px var(--line);
  transform-origin:50% 0;will-change:transform;transform:scale(calc(1 - var(--cover) * .07))}
.case-card::after{content:"";position:absolute;inset:0;z-index:4;border-radius:inherit;background:#000;pointer-events:none;opacity:calc(var(--cover) * .55)}
.case-cover{position:relative;flex:1 1 40svh;min-height:34svh;padding:18px;display:flex;flex-direction:column;justify-content:flex-end;overflow:hidden;
  background:radial-gradient(120% 90% at 80% 100%,rgba(242,208,43,.28),transparent 60%),linear-gradient(160deg,#1f1f22,#111113)}
.case-cover .label{position:absolute;left:18px;top:18px}
.case-chart{position:absolute;left:0;right:0;bottom:18%;width:100%;height:55%;max-width:none}
.case-chart path{fill:none;stroke:var(--lemon);stroke-width:3;vector-effect:non-scaling-stroke;stroke-dasharray:1;stroke-dashoffset:1;opacity:.55;
  transition:stroke-dashoffset 1.8s var(--e) .2s}
.case-cover.in .case-chart path{stroke-dashoffset:0}
.case-big{position:relative;font:800 clamp(66px,21vw,210px)/.9 var(--f-head);letter-spacing:-.07em;color:var(--lemon);white-space:nowrap}
.case-lemon .case-cover{background:radial-gradient(120% 90% at 20% 0%,#FFE77A,transparent 60%),var(--lemon)}
.case-lemon .case-cover .label{color:rgba(10,10,11,.6)}
.case-lemon .case-big{color:var(--ink)}
.case-lemon .case-chart path{stroke:var(--ink);opacity:.35}
.case-info{padding:16px 18px 20px;display:grid;gap:10px}
.case-niche{font:500 10px/1.3 var(--f-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--mute)}
.case-info h3{font-size:clamp(21px,5.8vw,36px);line-height:1.02;letter-spacing:-.04em}
.case-kpi{margin:4px 0 0;display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.case-kpi div{padding-top:10px;border-top:1px solid var(--line)}
.case-kpi dt{font:500 8.5px/1 var(--f-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--mute);margin-bottom:6px}
.case-kpi dd{margin:0;font:700 15px/1.1 var(--f-head);letter-spacing:-.03em}
.case-go{display:inline-flex;gap:8px;align-items:center;font-weight:600;color:var(--lemon);margin-top:4px}
.case-go i{font-style:normal;transition:transform .4s var(--e)}
@media (hover:hover){.case-card:hover .case-go i{transform:translateX(6px)}}
.cases-more{margin-top:28px}
@media (min-width:900px){
  .case-card{flex-direction:row;min-height:66svh}
  .case-cover{flex:1 1 55%}
  .case-info{flex:1 1 45%;align-content:end;padding:32px}
}

/* ===================== 6. КЛИЕНТЫ ===================== */
.clients{position:relative;z-index:6;background:var(--lemon);border-radius:28px 28px 0 0;margin-top:-28px;min-height:100svh;
  display:flex;flex-direction:column;justify-content:center;gap:32px;padding:calc(var(--hdr) + 12px) 0 110px;overflow:hidden}
.clients-head .label{margin-bottom:12px;color:rgba(10,10,11,.6)}
.clients-head h2{font-size:clamp(56px,17vw,190px);line-height:.9}
.logo-rows{display:grid;gap:12px;transform:rotate(-4deg) scale(1.08)}
.logo-rows .mq{-webkit-mask:none;mask:none}
.logo-tile{display:grid;place-items:center;align-content:center;gap:4px;width:150px;height:86px;border-radius:18px;background:var(--milk);color:var(--ink);
  box-shadow:0 10px 24px -14px rgba(10,10,11,.45)}
.logo-tile b{font:800 19px/1 var(--f-head);letter-spacing:-.04em;white-space:nowrap}
.logo-tile small{font:500 8px/1 var(--f-mono);letter-spacing:.08em;opacity:.45}
.logo-dark{background:var(--ink);color:var(--milk)}
@media (min-width:900px){.logo-tile{width:210px;height:110px}.logo-tile b{font-size:24px}}

/* ===================== 7. КАК РАБОТАЕМ ===================== */
.proc{position:relative;z-index:7;background:var(--milk);border-radius:28px 28px 0 0;margin-top:-28px;padding:calc(var(--hdr) + 16px) 0 110px}
.proc-in{display:grid;gap:28px}
.proc-head .label{margin-bottom:12px}
.proc-head h2{font-size:clamp(44px,13vw,120px);line-height:.92}
.steps{list-style:none;margin:0;padding:0 0 0 30px;position:relative;display:grid;gap:26px}
.steps::before,.steps::after{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;border-radius:2px;background:rgba(10,10,11,.12)}
.steps::after{background:var(--ink);transform-origin:0 0;transform:scaleY(clamp(0,(var(--p) - .05) / .6,1))}
.step{position:relative;display:grid;gap:8px}
.step::before{content:"";position:absolute;left:-30px;top:2px;width:16px;height:16px;border-radius:50%;background:var(--milk);box-shadow:inset 0 0 0 2px var(--ink)}
.step.in::before{background:var(--lemon);transition:background .4s var(--e) .5s}
.step-d{font:500 10px/1 var(--f-mono);letter-spacing:.12em;text-transform:uppercase;color:#6B6860}
.step h3{font-size:clamp(22px,6vw,34px);letter-spacing:-.04em}
.step p{font-size:15px;color:rgba(10,10,11,.75);max-width:46ch}
.deal{margin-top:40px;padding:22px 20px;border-radius:24px;background:var(--ink);color:var(--milk);--line:rgba(241,238,230,.12)}
.deal .label{margin-bottom:14px;color:var(--lemon)}
.deal ul{list-style:none;margin:0;padding:0;display:grid}
.deal li{display:grid;grid-template-columns:92px 1fr;gap:12px;padding:12px 0;border-top:1px solid var(--line);font-size:14.5px}
.deal li b{font:700 15px/1.3 var(--f-head);letter-spacing:-.02em}
.deal li>span{color:rgba(241,238,230,.78)}
@media (min-width:900px){
  .proc-in{grid-template-columns:.9fr 1.1fr;align-items:start;gap:60px}
  .proc-head{position:sticky;top:calc(var(--hdr) + 30px)}
  .deal{padding:36px;display:grid;grid-template-columns:.6fr 1.4fr;gap:30px}
  .deal ul{grid-template-columns:1fr 1fr;column-gap:30px}
}

/* ===================== 8. СОМНЕНИЯ ===================== */
.doubts{position:relative;z-index:8;background:var(--bg);border-radius:28px 28px 0 0;margin-top:-28px;padding:calc(var(--hdr) + 16px) 0 110px}
.doubts .label{margin-bottom:12px}
.doubts h2{font-size:clamp(30px,8.4vw,80px);max-width:12ch;margin-bottom:22px}
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line);interpolate-size:allow-keywords}
.faq summary{list-style:none;cursor:pointer;display:grid;grid-template-columns:1fr 36px;gap:14px;align-items:center;padding:18px 0;
  font:700 clamp(18px,5vw,28px)/1.15 var(--f-head);letter-spacing:-.035em}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";width:36px;height:36px;border-radius:50%;display:grid;place-items:center;font:400 22px/1 var(--f-body);
  box-shadow:inset 0 0 0 1.5px var(--line);transition:transform .45s var(--e),background .3s,color .3s}
.faq details[open] summary::after{transform:rotate(45deg);background:var(--lemon);color:var(--ink);box-shadow:none}
.faq details::details-content{block-size:0;overflow:hidden;transition:block-size .5s var(--e),content-visibility .5s allow-discrete}
.faq details[open]::details-content{block-size:auto}
.faq .a{padding:0 0 20px;font-size:15.5px;color:rgba(241,238,230,.78);max-width:62ch}

/* ===================== 9. КВИЗ ===================== */
.plan{position:relative;z-index:9;background:var(--bg-2);border-radius:28px 28px 0 0;margin-top:-28px;min-height:100svh;
  padding:calc(var(--hdr) + 16px) 0 120px;overflow:hidden}
.plan::before{content:"";position:absolute;right:-40vw;top:-20vw;width:100vw;aspect-ratio:1;border-radius:50%;
  background:radial-gradient(closest-side,rgba(242,208,43,.2),transparent);pointer-events:none}
.plan .label{margin-bottom:12px}
.plan h2{font-size:clamp(30px,8.4vw,80px);max-width:13ch;margin-bottom:12px}
.plan-lede{font-size:15px;color:var(--mute);max-width:40ch;margin-bottom:24px}
.quiz{position:relative;border-radius:26px;background:var(--bg);box-shadow:inset 0 0 0 1px var(--line);padding:18px}
.q-top{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.q-bar{flex:1;height:4px;border-radius:4px;background:var(--line);overflow:hidden}
.q-bar i{display:block;height:100%;background:var(--lemon);transform-origin:0 0;transform:scaleX(0);transition:transform .6s var(--e)}
.q-count{font:500 10px/1 var(--f-mono);letter-spacing:.1em;color:var(--mute);min-width:44px;text-align:right}
.q-back{font:500 10px/1 var(--f-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--mute);padding:8px 0}
.q-steps{display:grid}
.q-step{grid-area:1/1;opacity:0;transform:translateX(40px);pointer-events:none;transition:opacity .45s var(--e),transform .6s var(--e)}
.q-step.past{transform:translateX(-40px)}
.q-step.on{opacity:1;transform:none;pointer-events:auto}
.q-step h3{font-size:clamp(21px,6vw,34px);letter-spacing:-.04em;line-height:1.05;margin-bottom:16px}
.q-opts{display:grid;gap:8px}
.q-opt{display:flex;justify-content:space-between;align-items:center;gap:12px;min-height:54px;padding:12px 16px;border-radius:16px;text-align:left;
  background:var(--bg-3);box-shadow:inset 0 0 0 1px var(--line);font-size:15.5px;font-weight:500;transition:background .25s,color .25s,transform .2s}
.q-opt::after{content:"→";color:var(--mute);transition:transform .3s var(--e)}
.q-opt:active{transform:scale(.98)}
.q-opt[aria-pressed="true"]{background:var(--lemon);color:var(--ink)}
.q-opt[aria-pressed="true"]::after{color:var(--ink);transform:translateX(4px)}
@media (hover:hover){.q-opt:hover{box-shadow:inset 0 0 0 1px rgba(242,208,43,.6)}}
.q-note{margin-top:12px;padding:12px 14px;border-radius:14px;background:rgba(242,208,43,.12);color:var(--lemon-2);font-size:13.5px}
.q-form{display:grid;gap:10px}
.q-form input[type=text],.q-form input[type=tel]{width:100%;min-height:56px;padding:0 16px;border-radius:16px;border:0;background:var(--bg-3);
  box-shadow:inset 0 0 0 1px var(--line);font-size:16px;outline:none;transition:box-shadow .25s}
.q-form input:focus{box-shadow:inset 0 0 0 2px var(--lemon)}
.q-form input::placeholder{color:var(--mute)}
.q-consent{display:grid;grid-template-columns:22px 1fr;gap:10px;align-items:start;font-size:12.5px;color:var(--mute);margin:4px 0}
.q-consent input{width:20px;height:20px;margin:0;accent-color:var(--lemon)}
.q-consent a{text-decoration:underline;text-underline-offset:3px}
.q-trap{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.q-alt{font-size:13px;color:var(--mute);text-align:center;margin-top:2px}
.q-alt a{color:var(--lemon);text-decoration:underline;text-underline-offset:3px}
.q-err{min-height:1.2em;font-size:13px;color:#FF8A6B}
.q-form .btn{width:100%}
.q-done .slice{margin-bottom:16px}
.q-done p{color:var(--mute);font-size:15px;max-width:36ch}
@media (min-width:900px){
  .plan-in{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:start}
  .quiz{padding:30px}
}

/* правки после проверки */
@media (min-width:900px){.clients-foot{margin-top:28px}}
.clients-head h2{font-size:clamp(44px,12.4vw,190px)}
body[data-theme="lemon"]:not(.menu-open) .logo i{background:var(--ink);color:var(--lemon)}

/* блоки ниже первого экрана браузер не рисует, пока до них не долистали */
.proc,.doubts,.plan,.clients{content-visibility:auto;contain-intrinsic-size:auto 900px}