/* Slippage — shared stylesheet
   Design tokens carried over from the first single-page site so the new
   multi-page version looks like the same studio, not a redesign. */

:root{
  --ink:#16181d; --ink-2:#3d434f; --mut:#5f6672; --faint:#858c99;
  --paper:#fbfaf8; --card:#ffffff; --line:#e7e5e1; --line-2:#d9d6d0;
  --alert:#b42318; --alert-bg:#fef3f2; --ok:#067647; --ok-bg:#ecfdf3;
  --accent:#1f3a5f;
  --radius:12px; --max:1080px;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --ink:#eceff4; --ink-2:#c2c8d2; --mut:#9099a8; --faint:#6b7482;
    --paper:#0e1014; --card:#15181e; --line:#252a33; --line-2:#333a45;
    --alert:#ff8a7a; --alert-bg:#2a1512; --ok:#5fd39a; --ok-bg:#0f2419;
    --accent:#9dc0e8;
  }
}
:root[data-theme="dark"]{
  --ink:#eceff4; --ink-2:#c2c8d2; --mut:#9099a8; --faint:#6b7482;
  --paper:#0e1014; --card:#15181e; --line:#252a33; --line-2:#333a45;
  --alert:#ff8a7a; --alert-bg:#2a1512; --ok:#5fd39a; --ok-bg:#0f2419;
  --accent:#9dc0e8;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:76px;-webkit-text-size-adjust:100%}
@media(max-width:1160px){html{scroll-padding-top:118px}}
@media(max-width:700px){html{scroll-padding-top:104px}}
body{margin:0;background:var(--paper);color:var(--ink);
  font:400 17px/1.65 'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  -webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:'Newsreader',Georgia,'Times New Roman',serif;font-weight:500;
  letter-spacing:-.012em;line-height:1.15;margin:0}
h1{font-size:clamp(2.05rem,4.6vw,3.1rem);line-height:1.08;letter-spacing:-.022em}
h2{font-size:clamp(1.65rem,3.2vw,2.35rem);margin-bottom:.55em}
h3{font-size:1.16rem;font-family:'Inter',sans-serif;font-weight:600;letter-spacing:-.005em}
p{margin:0 0 1.05em}
a{color:inherit}
ul{margin:0 0 1.05em;padding-left:1.15em}
li{margin-bottom:.4em}
code,.mono{font-family:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:.87em;letter-spacing:-.01em}
.wrap{max-width:var(--max);margin:0 auto;padding:0 28px}
.narrow{max-width:760px}
.lede{font-size:1.16rem;color:var(--ink-2);max-width:64ch}
.mut{color:var(--mut)}
.small{font-size:.9rem}
section{padding:84px 0;border-top:1px solid var(--line)}
/* a section that is also .wrap lost its side gutter: the shorthand above
   overrode .wrap padding, so every page hero sat flush to the screen edge
   on anything narrower than 1080px. */
section.wrap{padding-left:28px;padding-right:28px}
section.tight{padding:60px 0}
.eyebrow{font:600 12px/1 'Inter',sans-serif;letter-spacing:.13em;text-transform:uppercase;
  color:var(--mut);margin-bottom:18px}

/* nav */
header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--paper) 88%,transparent);
  backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:26px;height:64px}
.brand{font-family:'Newsreader',serif;font-size:1.32rem;font-weight:600;letter-spacing:-.02em;
  text-decoration:none;display:flex;align-items:center;gap:9px}
.dot{width:9px;height:9px;border-radius:50%;background:var(--alert);flex:none}
.brand-sub{font-family:'Inter',sans-serif;font-size:12.5px;font-weight:500;color:var(--mut);
  letter-spacing:.01em;padding-left:11px;margin-left:3px;border-left:1px solid var(--line-2);white-space:nowrap}
@media(max-width:560px){.brand-sub{display:none}}
.nav nav{display:flex;gap:19px;margin-left:auto;flex-wrap:nowrap;min-width:0}
.nav nav a{white-space:nowrap;text-decoration:none;font-size:14.5px;color:var(--mut);
  font-weight:500;transition:color .15s}
.nav nav a:hover,.nav nav a[aria-current]{color:var(--ink)}
.nav .cta{margin-left:12px;flex:none;white-space:nowrap}
@media(max-width:1160px){
  /* header stays sticky at every width: the contact button must not scroll away */
  .nav{height:auto;flex-wrap:wrap;gap:8px;padding:10px 0 8px;align-items:center}
  .brand{flex:1 1 auto}
  .nav .cta{margin-left:0;order:2}
  .nav nav{order:3;flex-basis:100%;flex-wrap:wrap;gap:12px 16px;margin-left:0;
    padding-top:8px;border-top:1px solid var(--line)}
  .nav nav a{font-size:14px}
}
@media(max-width:700px){
  /* one scrollable line of links rather than two stacked rows */
  .nav nav{flex-wrap:nowrap;overflow-x:auto;white-space:nowrap;scrollbar-width:none;
    -webkit-overflow-scrolling:touch}
  .nav nav::-webkit-scrollbar{display:none}
  .brand-sub{display:none}
}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:9px;padding:12px 22px;border-radius:9px;
  text-decoration:none;font-weight:560;font-size:15.5px;border:1px solid transparent;
  transition:transform .12s ease, box-shadow .15s ease, background .15s}
.btn-primary{background:var(--ink);color:var(--paper);box-shadow:0 1px 2px rgba(0,0,0,.16)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 18px rgba(0,0,0,.16)}
.btn-ghost{border-color:var(--line-2);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink);background:var(--card)}
.btn.sm{padding:9px 16px;font-size:14px}

/* hero */
.hero{padding:92px 0 76px;border-top:0}
.hero h1{max-width:38ch}
.hero .lede{margin-top:24px;font-size:1.22rem}
.hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin-top:32px}
.hero-note{margin-top:24px;display:flex;gap:9px;flex-wrap:wrap}
.chip{display:inline-flex;align-items:center;gap:7px;font-size:13.5px;color:var(--mut);
  border:1px solid var(--line);border-radius:100px;padding:6px 14px;background:var(--card)}
.page-hero{padding:72px 0 44px;border-top:0}
.page-hero h1{max-width:20ch;font-size:clamp(2rem,4.2vw,3rem)}
.crumb{font-size:13.6px;color:var(--mut);margin-bottom:20px}
.crumb a{text-decoration:none;border-bottom:1px solid var(--line-2)}

/* symptom grid — the front door of the home page */
.symptoms{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:16px;margin-top:34px}
.symptom{display:block;text-decoration:none;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);padding:24px 24px 20px;transition:border-color .15s,transform .12s,box-shadow .15s}
.symptom:hover{border-color:var(--ink);transform:translateY(-2px);box-shadow:0 8px 26px rgba(0,0,0,.07)}
.symptom .q{font-family:'Newsreader',serif;font-size:1.32rem;line-height:1.25;margin-bottom:10px}
.symptom p{margin:0;color:var(--ink-2);font-size:15.1px}
.symptom .go{display:inline-block;margin-top:14px;font-size:14px;color:var(--mut);font-weight:560}
.symptom:hover .go{color:var(--ink)}

/* generic layout */
.two{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:start}
@media(max-width:820px){.two{grid-template-columns:1fr;gap:34px}}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(238px,1fr));gap:16px;margin-top:30px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.card h3{margin-bottom:8px}
.card p{margin:0;color:var(--ink-2);font-size:15.2px}
.card .n{font-family:'Newsreader',serif;font-size:2.1rem;line-height:1;margin-bottom:6px}

/* tables */
.tablewrap{overflow-x:auto;margin-top:28px;border:1px solid var(--line);
  border-radius:var(--radius);background:var(--card)}
table{border-collapse:collapse;width:100%;min-width:620px;font-size:15px}
th,td{text-align:left;padding:14px 18px;border-bottom:1px solid var(--line);vertical-align:top}
tbody tr:last-child td{border-bottom:0}
th{font:600 11.5px/1 'Inter',sans-serif;letter-spacing:.1em;text-transform:uppercase;
  color:var(--mut);white-space:nowrap;background:color-mix(in srgb,var(--paper) 55%,transparent)}
td.tag{font-family:'JetBrains Mono',monospace;font-weight:500;color:var(--mut);width:1%;white-space:nowrap}
td.num{font-family:'JetBrains Mono',monospace;white-space:nowrap;width:1%}
.yes{color:var(--ok);font-weight:600}
.no{color:var(--alert);font-weight:600}
td .sub{display:block;color:var(--mut);font-size:13.6px;margin-top:3px}

/* sample report block */
.report{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;margin-top:28px}
.report-head{padding:15px 22px;border-bottom:1px solid var(--line);display:flex;
  align-items:center;gap:10px;font-size:13.5px;color:var(--mut)}
.report-head .dots{display:flex;gap:6px}
.report-head .dots i{width:9px;height:9px;border-radius:50%;background:var(--line-2);display:block}
.report-body{padding:24px 22px}
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:14px;margin-bottom:22px}
.kpi{border:1px solid var(--line);border-radius:9px;padding:14px 16px}
.kpi .v{font-family:'Newsreader',serif;font-size:1.75rem;line-height:1.1}
.kpi .l{font-size:12.6px;color:var(--mut);margin-top:2px}
.kpi.hot .v{color:var(--alert)}
.rows{font-size:14.6px}
.row{display:flex;gap:14px;padding:10px 0;border-top:1px solid var(--line);align-items:baseline}
.row .lbl{flex:1;min-width:0}
.row .amt{font-family:'JetBrains Mono',monospace;white-space:nowrap;color:var(--alert)}
.row .amt.n{color:var(--mut)}

/* steps */
.steps{counter-reset:s;margin-top:28px;display:grid;gap:2px}
.step{display:grid;grid-template-columns:44px 1fr;gap:18px;padding:20px 0;border-top:1px solid var(--line)}
.step::before{counter-increment:s;content:counter(s);font-family:'Newsreader',serif;
  font-size:1.5rem;color:var(--faint);line-height:1.2}
.step h3{margin-bottom:5px}
.step p{margin:0;color:var(--ink-2);font-size:15.4px}

/* callout */
.callout{border:1px solid var(--line);border-left:3px solid var(--alert);
  background:var(--alert-bg);border-radius:8px;padding:20px 24px;margin:28px 0 0}
.callout.good{border-left-color:var(--ok);background:var(--ok-bg)}
.callout.plain{border-left-color:var(--line-2);background:var(--card)}
.callout p:last-child{margin-bottom:0}

/* trust bar */
.trust{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:0;
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin-top:32px;background:var(--card)}
.trust div{padding:18px 20px;border-right:1px solid var(--line)}
.trust div:last-child{border-right:0}
.trust .t{font-size:13px;font-weight:600;color:var(--ink);margin-bottom:3px}
.trust .d{font-size:13.2px;color:var(--mut);line-height:1.5}
@media(max-width:700px){.trust div{border-right:0;border-bottom:1px solid var(--line)}
  .trust div:last-child{border-bottom:0}}

/* pricing */
.prices{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:16px;margin-top:30px}
.price{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;
  display:flex;flex-direction:column}
.price.feature{border-color:var(--ink);box-shadow:0 2px 20px rgba(0,0,0,.06)}
.price .amt{font-family:'Newsreader',serif;font-size:2.05rem;line-height:1.1;margin:6px 0 4px}
.price .per{font-size:13.6px;color:var(--mut)}
.price ul{list-style:none;padding:0;margin:18px 0 0;font-size:15px;color:var(--ink-2)}
.price li{padding-left:22px;position:relative;margin-bottom:9px}
.price li::before{content:'';position:absolute;left:2px;top:.55em;width:9px;height:2px;
  background:var(--faint);border-radius:2px}

/* faq */
details{border-top:1px solid var(--line);padding:6px 0}
details summary{cursor:pointer;list-style:none;padding:16px 34px 16px 0;font-weight:560;
  font-size:16.5px;position:relative}
details summary::-webkit-details-marker{display:none}
details summary::after{content:'+';position:absolute;right:6px;top:14px;font-size:22px;
  color:var(--faint);font-weight:400;line-height:1}
details[open] summary::after{content:'–'}
details .a{padding:0 0 20px;color:var(--ink-2);max-width:72ch}
details .a p:last-child{margin-bottom:0}

/* next-page strip */
.next{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;margin-top:30px}
.next a{text-decoration:none;border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 22px;background:var(--card);transition:border-color .15s}
.next a:hover{border-color:var(--ink)}
.next .k{font-size:12.6px;color:var(--mut);letter-spacing:.08em;text-transform:uppercase;font-weight:600}
.next .t{font-family:'Newsreader',serif;font-size:1.2rem;margin-top:6px}

/* footer */
footer{border-top:1px solid var(--line);padding:52px 0 64px;color:var(--mut);font-size:14.6px}
.foot{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px}
@media(max-width:820px){.foot{grid-template-columns:1fr 1fr}}
.foot h4{font:600 12px/1 'Inter',sans-serif;letter-spacing:.12em;text-transform:uppercase;
  color:var(--faint);margin:0 0 14px}
.foot a{display:block;text-decoration:none;margin-bottom:9px;color:var(--mut);transition:color .15s}
.foot a:hover{color:var(--ink)}
.foot .about{max-width:34ch;line-height:1.6}

.links{display:flex;gap:18px;flex-wrap:wrap;margin-top:18px;font-size:14.5px}
.links a{color:var(--ink);text-decoration:none;border-bottom:1px solid var(--line-2);
  padding-bottom:1px;transition:border-color .15s}
.links a:hover{border-color:var(--ink)}

/* ---------- live demo: real script output ---------- */
.term{background:#0e1014;color:#d7dce4;border:1px solid #252a33;border-radius:var(--radius);
  padding:20px 22px;overflow-x:auto;font-family:'JetBrains Mono',ui-monospace,monospace;
  font-size:12.6px;line-height:1.6;white-space:pre;margin-top:24px}
.term b{color:#fff;font-weight:600}
.term .hot{color:#ff8a7a}
.term .ok{color:#5fd39a}
.term .dim{color:#7b8496}
.term-cap{display:flex;align-items:center;gap:10px;font-size:13.2px;color:var(--mut);margin-top:12px}
.term-cap .tag{font-family:'JetBrains Mono',monospace;border:1px solid var(--line);border-radius:100px;
  padding:3px 10px;font-size:12px}
.dl{display:inline-flex;align-items:center;gap:12px;border:1px solid var(--line);background:var(--card);
  border-radius:10px;padding:13px 17px;text-decoration:none;margin-top:20px;font-size:14.8px;
  transition:border-color .15s}
.dl:hover{border-color:var(--ink)}
.dl .f{font-family:'JetBrains Mono',monospace;font-size:12.6px;color:var(--mut)}
.dl .arrow{color:var(--mut)}

/* ---------- symptom groups ---------- */
.group-head{margin-top:38px;padding-top:26px;border-top:1px solid var(--line)}
.group-head h3{font-family:'Newsreader',serif;font-weight:500;font-size:1.5rem;margin-bottom:8px}
.group-head p{max-width:70ch;margin:0}
.group-head + .symptoms{margin-top:20px}


/* ---------- mobile overflow guards ---------- */
.two > *, .symptoms > *, .cards > *, .prices > *{min-width:0}
.tablewrap, .term, .report{max-width:100%}
table{min-width:0}
@media(max-width:700px){table{min-width:560px}}
.term{white-space:pre;overflow-x:auto}

/* заголовок страницы и подзаголовок не должны слипаться */
.page-hero h1 + .lede, .page-hero h1 + p{margin-top:20px}
.page-hero .lede{margin-top:20px}

/* inline expander used inside steps and prose */
details.tuck{border-top:0;padding:0;margin-top:12px}
details.tuck>summary{padding:0 22px 0 0;font-size:.88rem;font-weight:500;color:var(--mut)}
details.tuck>summary:hover{color:var(--ink)}
details.tuck>summary::after{content:'+';right:2px;top:-2px;font-size:17px}
details.tuck[open]>summary::after{content:'3'}
details.tuck .a{padding:10px 0 0}

/* readable measure: prose was running ~110 characters per line at full width */
section p, section li, .step p, .callout p{max-width:70ch}
.lede{max-width:62ch}
.trust .d, .symptom p, .card p, .price li, .next .t{max-width:none}

.hb{display:none}
@media(min-width:760px){.hb{display:inline}}

/* two-audience qualification grid: 3 + 3, with a rule between the rows */
.trust.two-rows{grid-template-columns:repeat(3,1fr)}
.trust.two-rows > div:nth-child(-n+3){border-bottom:1px solid var(--line)}
.trust.two-rows > div:nth-child(3n){border-right:0}
@media(max-width:820px){.trust.two-rows{grid-template-columns:1fr}
  .trust.two-rows > div{border-right:0;border-bottom:1px solid var(--line)}
  .trust.two-rows > div:last-child{border-bottom:0}}

/* contact strip at the foot of every page */
.cta-strip{display:flex;align-items:center;justify-content:space-between;gap:36px;
  border:1px solid var(--line);background:var(--card);border-radius:var(--radius);padding:26px 30px}
.cta-strip h3{font-size:1.2rem;margin:0 0 6px}
.cta-strip p{margin:0;max-width:62ch}
.cta-strip .eyebrow{margin-bottom:10px}
.cta-strip .btn{flex:none}
@media(max-width:760px){.cta-strip{flex-direction:column;align-items:flex-start;gap:20px}}
#start .mail{font-size:1.2rem;margin-top:26px;margin-bottom:6px}

.plain-list{list-style:none;padding-left:0;margin-top:18px}
.plain-list li{margin-bottom:14px;padding-left:18px;position:relative;max-width:70ch}
.plain-list li::before{content:'';position:absolute;left:0;top:11px;width:7px;height:1px;background:var(--line-2)}

.hero-mail{margin-top:18px;font-size:.95rem;color:var(--mut)}
.hero-mail a{font-weight:560;color:var(--ink);text-underline-offset:3px}
.hero-note + .hero-mail{margin-top:16px}

/* four price cards on the home page: 4 / 2 / 1 rather than an orphan row */
.prices.four{grid-template-columns:repeat(4,1fr);gap:14px}
.prices.four .price{padding:22px 20px}
.prices.four .amt{font-size:1.75rem}
.prices.four li{font-size:.9rem}
@media(max-width:1040px){.prices.four{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.prices.four{grid-template-columns:1fr}}

/* contact action: prefilled email button + a copyable address */
.cta-act{display:flex;flex-direction:column;gap:10px;align-items:flex-start}
.cta-act .btn{flex:none}
.start-act{margin-top:26px}
.mailrow{display:inline-flex;align-items:center;gap:10px;font-size:.95rem;color:var(--mut)}
.mailrow .mono{color:var(--ink);font-size:.92rem;user-select:all}
button.copy{font:500 12.5px/1 'Inter',sans-serif;color:var(--mut);background:transparent;
  border:1px solid var(--line);border-radius:100px;padding:5px 11px;cursor:pointer;
  transition:border-color .15s, color .15s}
button.copy:hover{border-color:var(--line-2);color:var(--ink)}
button.copy.copied{border-color:var(--ok);color:var(--ok)}
.cta-strip .cta-act{align-items:flex-end}
@media(max-width:760px){.cta-strip .cta-act{align-items:flex-start}}

.trust.three{grid-template-columns:repeat(3,1fr)}
@media(max-width:820px){.trust.three{grid-template-columns:1fr}}

/* contact action in the hero: same component as the foot of the page */
.hero-act{margin-top:20px;flex-direction:row;align-items:center;gap:16px;flex-wrap:wrap}
.hero-act .btn{font-size:14.5px;padding:10px 18px}
@media(max-width:620px){.hero-act{flex-direction:column;align-items:flex-start;gap:12px}}

/* the one line that answers "what happens if I write" */
.cta-micro{margin:10px 0 0;font-size:.85rem;color:var(--faint);max-width:none}
.hero-act .cta-micro{flex-basis:100%;margin-top:2px}

/* the standing band: numbers first, the way a reader scans them */
.trust.stat .t{font-family:'Newsreader',Georgia,serif;font-size:1.7rem;font-weight:500;
  letter-spacing:-.02em;margin-bottom:6px;line-height:1.1}
.trust.stat div{padding:22px 22px}

/* the first-three price, next to the number it replaces */
.first3{display:block;margin-top:6px;font-family:'Inter',sans-serif;font-size:12.5px;
  font-weight:600;color:var(--ok);letter-spacing:0;white-space:nowrap}
.first3::before{content:'→ '}

.amt .first3{font-size:12.5px;margin-top:8px}

/* the answer an operations manager came for: what it is, what it costs */
.hero-price{margin:22px 0 4px;padding:14px 18px;border:1px solid var(--line);border-left:3px solid var(--ok);
  border-radius:9px;background:var(--card);font-size:1rem;color:var(--ink-2);max-width:70ch}
.hero-price strong{color:var(--ink)}
.hero-price .hl{color:var(--ok);font-weight:600}

@media(max-width:620px){.hero-price{padding:12px 14px;font-size:.95rem}}