/* Контентные страницы vc-marketing.ai (research, guides, 404): токены, шапка и подвал — как на главной (index.html). */
:root{
  --paper:#F5F4FA; --surface:#FFFFFF; --surface-2:#EFEDF9;
  --ink:#1A1730; --ink-soft:#4B4763; --muted:#726E89;
  --line:rgba(26,23,48,.11); --line-2:rgba(26,23,48,.16);
  --violet:#5B45E9; --violet-deep:#4A2FD0; --violet-ink:#4534C7; --violet-soft:#ECE8FD;
  --amber:#E8A33D; --rose:#E4587A; --rose-soft:#FCE8EE; --green:#3BA776;
  --vibe:linear-gradient(135deg,#6E4EF3 0%,#4A2FD0 100%);
  --shadow:0 26px 60px -30px rgba(74,47,208,.42);
  --shadow-sm:0 14px 34px -20px rgba(74,47,208,.30);
  --maxw:1160px; --textw:720px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:var(--paper);overflow-x:clip;
  font-family:'Hanken Grotesk',ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:'Bricolage Grotesque',ui-sans-serif,system-ui,sans-serif;font-weight:800;line-height:1.08;letter-spacing:-.022em;text-wrap:balance;margin:0}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* бренд и кнопки */
.tile{display:grid;place-items:center;border-radius:26%;background:var(--vibe);position:relative;overflow:hidden;box-shadow:0 12px 30px -14px rgba(74,47,208,.6);flex:none}
.tile::after{content:"";position:absolute;inset:0;border-radius:inherit;background:radial-gradient(72% 58% at 27% 15%,rgba(255,255,255,.30),transparent 58%);pointer-events:none}
.tile .vc{font-family:'Bricolage Grotesque',sans-serif;font-weight:800;color:#fff;letter-spacing:-.07em;line-height:1;position:relative;z-index:1}
.brand{display:flex;align-items:center;gap:12px}
.brand .tile{width:38px;height:38px}.brand .tile .vc{font-size:18px}
.brand .bt{font-family:'Bricolage Grotesque',sans-serif;font-weight:800;font-size:18px;letter-spacing:-.01em;line-height:1}
.brand .bt .arr{color:var(--violet);margin:0 2px}.brand .bt .n{color:var(--ink-soft);font-weight:700}
.btn{display:inline-flex;align-items:center;gap:9px;font-family:'Hanken Grotesk';font-weight:600;font-size:16px;padding:14px 24px;border-radius:999px;border:1px solid transparent;transition:transform .18s ease,box-shadow .18s ease;white-space:nowrap}
.btn .arw{transition:transform .18s ease}.btn:hover .arw{transform:translateX(3px)}
.btn-primary{color:#fff;background:var(--vibe);box-shadow:0 16px 32px -14px rgba(74,47,208,.7)}
.btn-primary:hover{transform:translateY(-2px)}
.btn-ghost{color:var(--ink);background:var(--surface);border-color:var(--line-2)}
.btn-ghost:hover{transform:translateY(-2px);box-shadow:var(--shadow-sm)}

/* шапка */
header.site{position:sticky;top:0;z-index:60;background:rgba(245,244,250,.96);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px 0}
.nav .links{display:flex;align-items:center;gap:30px;font-weight:600;font-size:15px;color:var(--muted)}
.nav .links a:hover{color:var(--ink)}
@media(max-width:900px){.nav .links{display:none}}
@media(max-width:470px){.nav .btn{padding:11px 16px;font-size:15px}.brand .bt{font-size:16px}}

/* подвал */
footer.site{border-top:1px solid var(--line);padding:48px 0 40px;margin-top:40px}
.foot{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;align-items:flex-start}
.foot .tag{color:var(--muted);font-size:14.5px;margin-top:14px;max-width:40ch}
.foot .r{text-align:right}
.foot .r .em{font-family:'Bricolage Grotesque';font-weight:700;font-size:18px}
.foot .r .em a{color:var(--violet-ink)}
.foot-base{border-top:1px solid var(--line);margin-top:30px;padding-top:20px;color:var(--muted);font-size:13px}
.foot-base a{color:inherit}
@media(max-width:640px){.foot .r{text-align:left}}

/* статья */
.eyebrow{font-weight:700;font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--violet);display:inline-flex;align-items:center;gap:11px;margin-bottom:18px}
.eyebrow::before{content:"";width:26px;height:2px;border-radius:2px;background:var(--violet);flex:none}
.crumbs{font-size:14px;color:var(--muted);padding-top:26px}
.crumbs a{color:var(--violet-ink)}
.art-head{padding:34px 0 10px}
.art-head h1{font-size:clamp(34px,5.6vw,58px);max-width:20ch}
.art-head .lead{color:var(--ink-soft);font-size:clamp(18px,2.2vw,21px);max-width:62ch;margin-top:20px}
.meta{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:22px;font-size:14px;color:var(--muted)}
.meta b{color:var(--ink-soft);font-weight:600}
.prose{max-width:var(--textw)}
.prose h2{font-size:clamp(26px,3.6vw,36px);margin:56px 0 14px}
.prose h3{font-size:21px;margin:30px 0 8px}
.prose p{margin:0 0 16px}
.prose ul,.prose ol{margin:0 0 18px;padding-left:22px}
.prose li{margin:6px 0}
.prose a{color:var(--violet-ink);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.prose small,.note{color:var(--muted);font-size:14px}

/* ключевые цифры */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:34px 0 8px}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:20px 20px 18px;box-shadow:var(--shadow-sm)}
.stat .v{font-family:'Bricolage Grotesque';font-weight:800;font-size:clamp(34px,4.4vw,46px);letter-spacing:-.03em;line-height:1;color:var(--violet-deep)}
.stat .v.rose{color:var(--rose)}
.stat .t{font-size:15px;color:var(--ink-soft);margin-top:10px;line-height:1.4}
.stat .n{font-size:12.5px;color:var(--muted);margin-top:8px}
@media(max-width:900px){.stats{grid-template-columns:repeat(2,1fr)}}
@media(max-width:440px){.stats{grid-template-columns:1fr}}

/* полосы-доли */
.bars{display:grid;gap:12px;margin:22px 0 10px}
.bar{display:grid;grid-template-columns:minmax(0,1fr) 64px;gap:6px 14px;align-items:center}
.bar .l{font-size:15.5px;line-height:1.35}
.bar .p{font-family:'Bricolage Grotesque';font-weight:800;font-size:20px;text-align:right}
.bar .track{grid-column:1 / -1;height:10px;border-radius:99px;background:var(--surface-2);overflow:hidden}
.bar .track i{display:block;height:100%;border-radius:inherit;background:var(--vibe)}
.bar.rose .track i{background:linear-gradient(90deg,#F07A97,#E4587A)}
.bar .nn{grid-column:1 / -1;font-size:12.5px;color:var(--muted);margin-top:-4px}

/* карточки-проблемы */
.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin:24px 0}
.card{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:22px 22px 20px;box-shadow:var(--shadow-sm)}
.card h3{font-size:19px;margin:0 0 8px}
.card p{font-size:15.5px;color:var(--ink-soft);margin:0}
.card .chk{margin-top:12px;font-size:14.5px;background:var(--surface-2);border-radius:12px;padding:10px 12px}
.card .chk b{color:var(--violet-ink)}
@media(max-width:760px){.cards{grid-template-columns:1fr}}

/* метод и CTA */
.box{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:24px 26px;margin:26px 0}
.cta{background:var(--vibe);color:#fff;border-radius:28px;padding:38px 36px;margin:56px 0 10px;box-shadow:var(--shadow);display:flex;gap:24px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.cta h2{font-size:clamp(24px,3.4vw,34px);max-width:22ch}
.cta p{opacity:.9;margin-top:10px;max-width:52ch}
.cta .btn{background:#fff;color:var(--violet-ink)}