:root{
  --bg:#F4F5F6;
  --card:#FFFFFF;
  --ink:#1B1E22;
  --muted:#6C7278;
  --faint:#9AA0A6;
  --line:#E7E9EB;
  --accent:#F6C842;
  --accent-strong:#F0BC1E;
  --accent-soft:#FBEBB9;
  --dark:#26292E;
  --radius:24px;
  --radius-sm:16px;
  --shadow:0 1px 2px rgba(27,30,34,0.06), 0 8px 24px rgba(27,30,34,0.05);
  --font:'Inter','IBM Plex Sans',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);color:var(--ink);font-family:var(--font);line-height:1.55;
  -webkit-font-smoothing:antialiased;font-size:16px;
}
a{color:inherit;text-decoration:none;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;}
button{font-family:inherit;cursor:pointer;}
::selection{background:var(--accent);color:var(--ink);}
:focus-visible{outline:2px solid var(--accent-strong);outline-offset:3px;}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:600;font-size:16px;line-height:1;white-space:nowrap;
  padding:18px 32px;border-radius:999px;border:none;
  transition:background .2s,border-color .2s,transform .15s;
}
.btn:active{transform:scale(0.98);}
.btn-primary{background:var(--accent);color:var(--ink);}
.btn-primary:hover{background:var(--accent-strong);}
.btn-secondary{background:var(--card);color:var(--ink);border:1px solid var(--line);}
.btn-secondary:hover{border-color:var(--faint);}
.btn-dark{background:var(--dark);color:#fff;}
.btn-dark:hover{background:#3A3E44;}
.btn-sm{padding:12px 22px;font-size:14.5px;}

/* ---------- topbar ---------- */
.topbar{background:var(--dark);color:#D8DADD;font-size:14px;padding:10px 0;text-align:center;}
.topbar a{color:var(--accent);font-weight:600;}
.topbar a:hover{color:var(--accent-strong);}

/* ---------- header ---------- */
header.site{position:sticky;top:0;z-index:50;background:rgba(255,255,255,0.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px;gap:16px;}
.logo{font-weight:800;font-size:22px;letter-spacing:-0.01em;color:var(--ink);white-space:nowrap;}
.logo .num4{color:var(--accent-strong);}
.nav-links{display:flex;gap:32px;font-size:15.5px;font-weight:500;color:var(--ink);}
.nav-links a{padding:8px 0;transition:color .2s;}
.nav-links a:hover,.nav-links a[aria-current="page"]{color:var(--accent-strong);}
.nav-right{display:flex;align-items:center;gap:14px;}
.burger{display:none;background:none;border:1px solid var(--line);border-radius:12px;width:44px;height:44px;flex-direction:column;align-items:center;justify-content:center;gap:5px;}
.burger span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s,opacity .25s;}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0;}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-nav{display:none;background:#fff;border-top:1px solid var(--line);}
.mobile-nav.open{display:block;}
.mobile-nav ul{padding:10px 24px 24px;}
.mobile-nav a{display:block;padding:13px 0;font-size:16px;font-weight:500;color:var(--ink);border-bottom:1px solid var(--line);}
.mobile-nav a:hover,.mobile-nav a[aria-current="page"]{color:var(--accent-strong);}
.mobile-nav .sub{color:var(--muted);font-weight:400;padding-left:14px;}
.mobile-nav a.btn-primary{margin-top:16px;border-bottom:none;text-align:center;color:var(--ink);}

/* ---------- hero ---------- */
.hero{padding:72px 0 88px;}
.hero-grid{display:grid;grid-template-columns:1.1fr 0.9fr;gap:56px;align-items:center;}
.pill{
  display:inline-flex;align-items:center;gap:10px;background:var(--card);border:1px solid var(--line);
  border-radius:999px;padding:10px 18px;font-size:14px;font-weight:500;color:var(--muted);margin-bottom:26px;
  box-shadow:var(--shadow);
}
.pill .dot{width:8px;height:8px;border-radius:50%;background:var(--accent-strong);flex-shrink:0;}
.hero h1{font-size:clamp(38px,4.6vw,60px);font-weight:800;line-height:1.06;letter-spacing:-0.02em;margin-bottom:22px;text-wrap:balance;}
.hero h1 .accent{color:var(--accent-strong);}
.hero .sub{color:var(--muted);font-size:18px;max-width:52ch;margin-bottom:34px;}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:22px;}
.hero-note{font-size:14px;color:var(--faint);}

/* hero mockup stack */
.mockup{display:flex;flex-direction:column;gap:16px;}
.mock-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px 26px;}
.mock-chart{display:flex;align-items:flex-end;gap:10px;height:90px;margin-top:14px;}
.mock-chart i{flex:1;background:var(--line);border-radius:8px 8px 4px 4px;display:block;}
.mock-chart i.hot{background:var(--accent);}
.mock-label{font-size:13.5px;color:var(--muted);font-weight:500;}
.mock-num{font-size:30px;font-weight:800;letter-spacing:-0.02em;}
.mock-num .up{color:#2FA05A;font-size:16px;font-weight:700;vertical-align:middle;}
.mock-row{display:flex;gap:16px;}
.mock-row .mock-card{flex:1;}
.mock-bubble{display:flex;flex-direction:column;gap:10px;}
.mock-bubble-row{display:flex;gap:12px;align-items:flex-start;}
.mock-avatar{width:38px;height:38px;border-radius:50%;background:var(--accent);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;flex-shrink:0;}
.mock-bubble p{font-size:14px;color:var(--muted);background:var(--bg);border-radius:4px 16px 16px 16px;padding:10px 14px;}

/* ---------- sections ---------- */
section{padding:88px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head h2{font-size:clamp(28px,3.4vw,42px);font-weight:800;letter-spacing:-0.02em;line-height:1.12;margin-bottom:14px;text-wrap:balance;}
.section-head p{color:var(--muted);font-size:17px;}
.section-cta{display:flex;justify-content:center;margin-top:44px;}

/* chips */
.chips{display:flex;flex-wrap:wrap;gap:12px;}
.chips .chip{
  background:var(--card);border:1px solid var(--line);border-radius:999px;
  padding:13px 22px;font-size:15px;font-weight:500;transition:border-color .2s,background .2s;
}
.chips .chip.accent{background:var(--accent-soft);border-color:transparent;}
a.chip:hover{border-color:var(--faint);}

/* benefit cards */
.benefit-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.benefit{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:34px 32px;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s;}
a.benefit:hover{transform:translateY(-3px);box-shadow:0 2px 4px rgba(27,30,34,0.06),0 16px 36px rgba(27,30,34,0.09);}
.benefit h3{font-size:21px;font-weight:700;letter-spacing:-0.01em;margin-bottom:10px;}
.benefit p{color:var(--muted);font-size:15.5px;flex:1;}
.benefit .tag{display:inline-block;background:var(--accent-soft);border-radius:999px;padding:6px 14px;font-size:13px;font-weight:600;margin-bottom:16px;align-self:flex-start;}
.benefit .more{font-size:14.5px;font-weight:600;color:var(--ink);margin-top:16px;}
.benefit .more::after{content:' →';color:var(--accent-strong);}

/* service cards */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.svc{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:30px 28px;display:flex;flex-direction:column;gap:12px;transition:transform .2s,box-shadow .2s;}
a.svc:hover{transform:translateY(-3px);box-shadow:0 2px 4px rgba(27,30,34,0.06),0 16px 36px rgba(27,30,34,0.09);}
.svc .svc-icon{width:46px;height:46px;border-radius:14px;background:var(--accent-soft);display:flex;align-items:center;justify-content:center;font-size:21px;margin-bottom:6px;}
.svc h3{font-size:19px;font-weight:700;letter-spacing:-0.01em;}
.svc p{color:var(--muted);font-size:14.5px;flex:1;}
.svc .more{font-size:14.5px;font-weight:600;color:var(--ink);}
.svc .more::after{content:' →';color:var(--accent-strong);}

/* steps */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step;}
.step{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px 26px;counter-increment:step;}
.step::before{
  content:counter(step);display:flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:50%;background:var(--accent);font-weight:800;font-size:17px;margin-bottom:18px;
}
.step h3{font-size:17px;font-weight:700;margin-bottom:8px;}
.step p{color:var(--muted);font-size:14.5px;}

/* includes checklist */
.inc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;}
.inc-grid li{
  background:var(--card);border-radius:var(--radius-sm);box-shadow:var(--shadow);
  padding:18px 20px;font-size:15px;color:var(--ink);display:flex;gap:14px;align-items:flex-start;
}
.inc-grid li::before{
  content:'✓';flex-shrink:0;width:24px;height:24px;border-radius:50%;background:var(--accent-soft);
  color:var(--ink);font-weight:800;font-size:13px;display:flex;align-items:center;justify-content:center;margin-top:1px;
}

/* case cards */
.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.case-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:30px;display:flex;flex-direction:column;gap:14px;transition:transform .2s,box-shadow .2s;}
a.case-card:hover{transform:translateY(-3px);box-shadow:0 2px 4px rgba(27,30,34,0.06),0 16px 36px rgba(27,30,34,0.09);}
.case-top{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;}
.case-tag{font-size:13.5px;font-weight:500;color:var(--muted);}
.badge{font-size:12px;font-weight:700;letter-spacing:0.04em;text-transform:uppercase;border-radius:999px;padding:6px 13px;background:var(--accent-soft);color:var(--ink);}
.badge.gray{background:var(--bg);color:var(--muted);}
.case-card h3{font-size:21px;font-weight:700;letter-spacing:-0.01em;}
.case-card .case-task{color:var(--muted);font-size:15px;flex:1;}
.case-card .more{font-size:14.5px;font-weight:600;}
.case-card .more::after{content:' →';color:var(--accent-strong);}

/* numbers band */
.numbers{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.numbers div{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:30px 28px;}
.numbers .num{font-size:clamp(28px,3vw,40px);font-weight:800;letter-spacing:-0.02em;display:block;margin-bottom:6px;}
.numbers .lbl{color:var(--muted);font-size:14.5px;}

/* about */
.about-grid{display:grid;grid-template-columns:0.9fr 1.1fr;gap:48px;align-items:center;}
.about-frame{aspect-ratio:4/5;max-width:360px;background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);display:flex;align-items:center;justify-content:center;color:var(--faint);font-size:14px;font-weight:500;}
.about-list{display:flex;flex-direction:column;gap:12px;margin-top:22px;}
.about-list li{display:flex;gap:12px;align-items:flex-start;color:var(--muted);font-size:15.5px;}
.about-list li::before{content:'✓';flex-shrink:0;width:22px;height:22px;border-radius:50%;background:var(--accent-soft);font-weight:800;font-size:12px;display:flex;align-items:center;justify-content:center;color:var(--ink);margin-top:2px;}
.about-list a{font-weight:600;color:var(--ink);border-bottom:1px solid var(--accent);}

/* FAQ */
.faq{max-width:760px;display:flex;flex-direction:column;gap:12px;}
.faq details{background:var(--card);border-radius:var(--radius-sm);box-shadow:var(--shadow);}
.faq summary{cursor:pointer;padding:20px 24px;font-weight:600;font-size:16px;list-style:none;display:flex;justify-content:space-between;gap:16px;align-items:center;}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{content:'+';color:var(--accent-strong);font-size:22px;font-weight:600;flex-shrink:0;transition:transform .2s;}
.faq details[open] summary::after{transform:rotate(45deg);}
.faq details p{padding:0 24px 20px;color:var(--muted);font-size:15px;}

/* page hero (subpages) */
.breadcrumbs{padding:20px 0 0;font-size:13.5px;color:var(--faint);}
.breadcrumbs ol{display:flex;gap:8px;flex-wrap:wrap;}
.breadcrumbs li::after{content:'/';margin-left:8px;color:var(--line);}
.breadcrumbs li:last-child::after{content:'';}
.breadcrumbs a:hover{color:var(--ink);}
.breadcrumbs [aria-current="page"]{color:var(--muted);}
.page-hero{padding:44px 0 72px;}
.page-hero h1{font-size:clamp(34px,4.2vw,54px);font-weight:800;line-height:1.08;letter-spacing:-0.02em;margin-bottom:20px;max-width:22ch;text-wrap:balance;}
.page-hero .lead{color:var(--muted);font-size:18px;max-width:58ch;margin-bottom:32px;}
.page-hero .lead strong{color:var(--ink);font-weight:600;}

/* prose / notes */
.prose{max-width:760px;color:var(--muted);font-size:16.5px;display:flex;flex-direction:column;gap:16px;}
.prose strong{color:var(--ink);}
.prose h2{font-size:26px;font-weight:800;letter-spacing:-0.01em;color:var(--ink);margin-top:10px;}
.prose h3{font-size:20px;font-weight:700;letter-spacing:-0.01em;color:var(--ink);margin-top:4px;}
.prose ul,.prose ol{padding-left:22px;display:flex;flex-direction:column;gap:8px;}
.prose li{color:var(--muted);}
.prose img{width:100%;border-radius:var(--radius-sm);box-shadow:var(--shadow);}
.prose figcaption{font-size:13.5px;color:var(--faint);text-align:center;margin-top:-8px;}
.prose blockquote{border-left:3px solid var(--accent);padding-left:18px;color:var(--ink);font-weight:500;font-size:18px;}
.note{background:var(--card);border-radius:var(--radius-sm);box-shadow:var(--shadow);border-left:4px solid var(--accent);padding:20px 24px;font-size:15px;color:var(--muted);max-width:760px;}

/* articles / poleznoe */
.article-meta{display:flex;gap:14px;flex-wrap:wrap;font-size:14px;color:var(--faint);margin-bottom:10px;}
.article-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.tldr{max-width:760px;background:var(--accent-soft);border-radius:var(--radius-sm);padding:18px 24px;margin-bottom:8px;}
.tldr-label{font-size:12.5px;font-weight:800;letter-spacing:0.04em;text-transform:uppercase;color:var(--ink);margin-bottom:6px;}
.tldr p{margin:0;color:var(--ink);font-size:15.5px;line-height:1.5;}
.author-box{max-width:760px;display:flex;gap:18px;align-items:flex-start;background:var(--card);border-radius:var(--radius-sm);box-shadow:var(--shadow);padding:24px;}
.author-avatar{flex:0 0 auto;width:56px;height:56px;border-radius:50%;background:var(--accent-soft);display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:800;color:var(--ink);}
.author-name{font-weight:800;font-size:16px;color:var(--ink);margin-bottom:4px;}
.author-role{font-size:14.5px;color:var(--muted);line-height:1.4;margin-bottom:8px;}
.author-link{font-size:14px;font-weight:700;color:var(--ink);text-decoration:none;}
.author-link:hover{text-decoration:underline;}
.article-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px;display:flex;flex-direction:column;gap:12px;transition:transform .2s,box-shadow .2s;}
a.article-card:hover{transform:translateY(-3px);box-shadow:0 2px 4px rgba(27,30,34,0.06),0 16px 36px rgba(27,30,34,0.09);}
.article-card h3{font-size:20px;font-weight:700;letter-spacing:-0.01em;}
.article-card p{color:var(--muted);font-size:15px;flex:1;}
.empty-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:56px 40px;text-align:center;}
.empty-card .emoji{font-size:34px;margin-bottom:16px;}
.empty-card h3{font-size:22px;font-weight:700;margin-bottom:10px;}
.empty-card p{color:var(--muted);font-size:15.5px;max-width:52ch;margin:0 auto;}

/* final CTA */
.cta-final{background:var(--card);border-radius:calc(var(--radius) + 8px);box-shadow:var(--shadow);padding:64px 40px;text-align:center;}
.cta-final h2{font-size:clamp(28px,3.6vw,44px);font-weight:800;letter-spacing:-0.02em;margin-bottom:14px;text-wrap:balance;}
.cta-final p{color:var(--muted);font-size:17px;max-width:52ch;margin:0 auto 30px;}

/* footer */
footer.site{background:var(--card);border-top:1px solid var(--line);padding:56px 0 40px;margin-top:40px;}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:40px;}
.footer-col .col-title{font-size:12px;font-weight:700;letter-spacing:0.08em;text-transform:uppercase;color:var(--faint);margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14.5px;color:var(--muted);}
.footer-col a:hover{color:var(--ink);}
.footer-brand p{color:var(--muted);font-size:14.5px;margin-top:14px;max-width:30ch;}
.footer-bottom{border-top:1px solid var(--line);margin-top:44px;padding-top:24px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:var(--faint);font-size:13.5px;}

/* ---------- responsive ---------- */
@media (max-width:1000px){
  .svc-grid{grid-template-columns:repeat(2,1fr);}
  .steps-grid{grid-template-columns:repeat(2,1fr);}
  .numbers{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:900px){
  .nav-links{display:none;}
  .nav-cta-desktop{display:none;}
  .burger{display:flex;}
  .hero-grid{grid-template-columns:1fr;gap:44px;}
  .benefit-grid{grid-template-columns:1fr;}
  .case-grid{grid-template-columns:1fr;}
  .about-grid{grid-template-columns:1fr;}
  .inc-grid{grid-template-columns:1fr;}
  section{padding:64px 0;}
}
@media (max-width:560px){
  .wrap{padding:0 18px;}
  .svc-grid{grid-template-columns:1fr;}
  .steps-grid{grid-template-columns:1fr;}
  .numbers{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .hero{padding:48px 0 60px;}
  .btn{padding:16px 26px;font-size:15px;}
  .cta-final{padding:44px 24px;}
  .mock-row{flex-direction:column;}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto;}}

/* cookie consent banner */
.cookie-banner{
  position:fixed;left:16px;right:16px;bottom:16px;z-index:100;
  max-width:640px;margin:0 auto;
  background:var(--dark);color:#fff;border-radius:16px;
  padding:18px 20px;display:flex;align-items:center;gap:16px;flex-wrap:wrap;
  box-shadow:0 8px 30px rgba(0,0,0,0.25);
  transform:translateY(140%);transition:transform .3s ease;
}
.cookie-banner.show{transform:translateY(0);}
.cookie-banner p{font-size:13.5px;color:#D8DADD;flex:1;min-width:220px;}
.cookie-banner a{color:var(--accent);text-decoration:underline;}
.cookie-banner .btn{flex-shrink:0;}
@media (max-width:520px){
  .cookie-banner{left:10px;right:10px;bottom:10px;padding:16px;}
}

/* mini header for card/QR landing pages */
.mini-header{padding:24px 0;}
.mini-header .wrap{display:flex;justify-content:space-between;align-items:center;}

/* digital business card */
.dcard-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:40px 20px;}
.dcard{width:100%;max-width:380px;background:var(--card);border-radius:calc(var(--radius) + 8px);box-shadow:var(--shadow);padding:40px 32px;text-align:center;}
.dcard-avatar{width:104px;height:104px;border-radius:50%;background:var(--accent-soft);margin:0 auto 20px;display:flex;align-items:center;justify-content:center;font-size:34px;font-weight:800;color:var(--ink);}
.dcard h1{font-size:24px;font-weight:800;letter-spacing:-0.01em;margin-bottom:4px;}
.dcard .role{color:var(--muted);font-size:15px;margin-bottom:18px;}
.dcard .pitch{font-size:15.5px;color:var(--ink);margin-bottom:28px;line-height:1.5;}
.dcard .btn{width:100%;margin-bottom:10px;}
.dcard .dcard-links{display:flex;gap:10px;margin-top:6px;}
.dcard .dcard-links .btn{margin-bottom:0;}
.dcard-foot{margin-top:26px;font-size:12.5px;color:var(--faint);}
.dcard-foot a{color:var(--faint);text-decoration:underline;}

/* personal card landing */
.pcard-hero{padding:64px 0 48px;text-align:center;}
.pcard-avatar{width:120px;height:120px;border-radius:50%;background:var(--accent-soft);margin:0 auto 24px;display:flex;align-items:center;justify-content:center;font-size:38px;font-weight:800;color:var(--ink);}
.pcard-hero h1{font-size:clamp(30px,4.5vw,42px);font-weight:800;letter-spacing:-0.01em;margin-bottom:8px;}
.pcard-hero .role{color:var(--copper-strong,var(--muted));font-weight:600;font-size:16px;margin-bottom:18px;}
.pcard-hero .pitch{color:var(--muted);font-size:17px;max-width:48ch;margin:0 auto 28px;}