/* ============================================================
   UPSELLER · стили листинга статей /blog/ (blog/index.html)
   Перенесены из <style> боевой blog.html: шапка, hero, карточки,
   CTA-плашка, плавающая кнопка, подвал и блок заявки .lb.
   Сама blog.html этот файл не использует — у неё свой inline CSS.
   ============================================================ */
:root{
  --navy:#10202f; --navy2:#0a141e; --navy3:#182a3c;
  --blue:#2196f3; --blue-d:#1877cf; --blue-soft:#e8f3fe;
  --yellow:#fed42b; --yellow-d:#e6b800;
  --green:#23a566; --ink:#10202f; --muted:#5b6572; --muted2:#8a94a1;
  --line:#e4e8ee; --soft:#f4f6f9;
  --shadow:0 14px 44px rgba(16,32,47,.10);
  --shadow-sm:0 4px 18px rgba(16,32,47,.07);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--soft);color:var(--ink);overflow-x:hidden;
  font-family:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}

/* ---------- header ---------- */
.top{background:var(--navy);position:sticky;top:0;z-index:60;border-bottom:1px solid rgba(255,255,255,.08)}
.top__row{display:flex;align-items:center;justify-content:space-between;gap:16px;height:68px}
.top img{height:28px;width:auto}
.top__nav{display:flex;align-items:center;gap:22px}
.top__nav a{color:#c3cedb;font-size:15px;font-weight:500;white-space:nowrap;transition:color .2s}
.top__nav a:hover{color:#fff}
.top__nav a.act{color:#fff;font-weight:700}
.top__cta{display:inline-flex;align-items:center;gap:8px;background:var(--yellow);color:var(--navy);
  font-weight:800;font-size:14.5px;padding:11px 20px;border-radius:100px;white-space:nowrap;transition:.2s}
.top__cta:hover{background:var(--yellow-d);transform:translateY(-1px)}
@media(max-width:860px){.top__nav{display:none}}

/* ---------- hero ---------- */
.hero{background:linear-gradient(135deg,var(--navy),#16324a);color:#fff;padding:56px 0 64px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-100px;top:-120px;width:340px;height:340px;border-radius:50%;background:rgba(33,150,243,.16)}
.hero::before{content:"";position:absolute;right:120px;bottom:-180px;width:260px;height:260px;border-radius:50%;background:rgba(254,212,43,.10)}
.hero .wrap{position:relative;z-index:2}
.kick{display:inline-flex;align-items:center;gap:8px;color:var(--yellow);font-weight:800;font-size:13px;
  letter-spacing:2px;text-transform:uppercase;margin-bottom:16px}
.kick::before{content:"";width:22px;height:2px;background:currentColor;border-radius:2px}
.hero h1{margin:0 0 14px;font-size:clamp(28px,4.4vw,42px);line-height:1.14;font-weight:800;letter-spacing:-.02em;max-width:760px;overflow-wrap:break-word}
.hero h1 span{color:var(--yellow)}
.hero p{margin:0;color:#c6d2de;font-size:clamp(15.5px,1.8vw,18.5px);max-width:660px}

/* ---------- секции ---------- */
.sec{padding:52px 0 8px}
.sec h2{margin:0 0 6px;font-size:clamp(21px,2.6vw,27px);font-weight:800;letter-spacing:-.01em}
.sec .sub{margin:0 0 26px;color:var(--muted);font-size:15.5px}
.sec .sub a{color:var(--blue);font-weight:700}

/* ---------- карточки статей ---------- */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:22px}
.card{background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;
  box-shadow:var(--shadow-sm);transition:transform .25s var(--ease),box-shadow .25s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.card__img{aspect-ratio:1200/630;background:var(--navy) center/cover no-repeat;position:relative}
.card__tag{position:absolute;left:14px;top:14px;background:var(--yellow);color:var(--navy);
  font-size:11.5px;font-weight:800;letter-spacing:1px;text-transform:uppercase;padding:5px 11px;border-radius:20px}
.card__body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.card__body h3{margin:0 0 9px;font-size:19px;font-weight:800;line-height:1.25;letter-spacing:-.01em}
.card__body p{margin:0 0 16px;color:var(--muted);font-size:14.8px;flex:1}
.card__meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.card__meta span{background:var(--soft);border:1px solid var(--line);border-radius:20px;
  padding:4px 11px;font-size:12.5px;color:var(--muted);white-space:nowrap}
.card__go{display:inline-flex;align-items:center;gap:7px;color:var(--blue);font-weight:700;font-size:15px}
.card:hover .card__go{gap:11px}
.empty{background:#fff;border:1px dashed var(--line);border-radius:20px;padding:34px;text-align:center;color:var(--muted)}

/* ---------- CTA фулфилмент ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-weight:800;font-size:15.5px;
  padding:14px 24px;border-radius:12px;transition:.2s}
.ff{background:#fff;border:1px solid var(--line);border-left:5px solid var(--yellow);border-radius:20px;
  padding:30px 32px;display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center;box-shadow:var(--shadow-sm)}
.ff h3{margin:0 0 8px;font-size:21px;font-weight:800}
.ff p{margin:0;color:var(--muted);font-size:15.5px;max-width:640px}
.btn--b{background:var(--blue);color:#fff;box-shadow:0 12px 26px rgba(33,150,243,.26)}
.btn--b:hover{background:var(--blue-d);transform:translateY(-2px)}
@media(max-width:760px){.ff{grid-template-columns:1fr}.ff .btn{width:100%}}

/* ---------- плавающая кнопка ---------- */
.crosslink{position:fixed;left:20px;bottom:22px;z-index:95;display:inline-flex;align-items:center;gap:8px;
  background:var(--yellow);color:var(--navy);font-weight:800;font-size:15px;padding:13px 20px;border-radius:100px;
  box-shadow:0 10px 26px rgba(0,0,0,.22);animation:clPulse 2.4s infinite;transition:transform .2s}
.crosslink:hover{transform:translateY(-2px)}
@keyframes clPulse{
  0%{box-shadow:0 10px 26px rgba(0,0,0,.22),0 0 0 0 rgba(254,212,43,.55)}
  70%{box-shadow:0 10px 26px rgba(0,0,0,.22),0 0 0 14px rgba(254,212,43,0)}
  100%{box-shadow:0 10px 26px rgba(0,0,0,.22),0 0 0 0 rgba(254,212,43,0)}}
@media(max-width:520px){.crosslink{font-size:13px;padding:11px 16px;left:14px;bottom:16px}}
@media(prefers-reduced-motion:reduce){.crosslink{animation:none}}

/* ---------- footer ---------- */
footer{background:var(--navy2);color:#9fb0c0;margin-top:56px;padding:42px 0 34px;font-size:14.5px}
.foot__grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:32px;margin-bottom:26px}
.foot__grid h4{color:#fff;font-size:15.5px;margin:0 0 13px}
.foot__grid a{display:block;color:#9fb0c0;margin-bottom:9px;transition:color .2s}
.foot__grid a:hover{color:#fff}
.foot__grid p{margin:0;color:#8a97a5;font-size:14px;max-width:320px}
.foot__bot{border-top:1px solid rgba(255,255,255,.08);padding-top:20px;display:flex;flex-wrap:wrap;gap:10px;
  justify-content:space-between;color:#7d8b99;font-size:13px}
@media(max-width:760px){.foot__grid{grid-template-columns:1fr}}

/* ---------- блок заявки (общий для всех страниц) ---------- */
.lb{background:linear-gradient(135deg,var(--navy),#16324a);border-radius:22px;overflow:hidden;
  display:grid;grid-template-columns:1.05fr .95fr;color:#fff;margin:56px 0 8px;
  box-shadow:0 18px 50px rgba(16,32,47,.16);scroll-margin-top:84px}
.lb__left{padding:34px 34px 30px}
.lb__badge{display:inline-block;background:var(--yellow);color:var(--navy);font-weight:800;
  font-size:12px;letter-spacing:1.2px;text-transform:uppercase;padding:6px 13px;border-radius:20px;margin-bottom:14px}
.lb__left h2{margin:0 0 10px;font-size:clamp(20px,2.5vw,25px);font-weight:800;line-height:1.2;color:#fff}
.lb__left h2 span{color:var(--yellow)}
.lb__left>p{margin:0 0 18px;color:#c6d2de;font-size:15.3px}
.lb__pts{list-style:none;margin:0 0 20px;padding:0;display:grid;gap:9px}
.lb__pts li{color:#dbe4ee;font-size:14.8px;padding-left:26px;position:relative}
.lb__pts li::before{content:"✓";position:absolute;left:0;top:-1px;color:var(--navy);background:var(--yellow);
  width:18px;height:18px;border-radius:50%;font-size:11px;font-weight:800;display:flex;align-items:center;justify-content:center}
.lb__alt{border-top:1px solid rgba(255,255,255,.14);padding-top:16px;color:#a9b8c7;font-size:14.3px;line-height:1.9}
.lb__alt a{color:var(--yellow);font-weight:700;text-decoration:underline;text-underline-offset:2px}
.lb__ph{margin-top:20px;display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.lb__ph img{width:100%;height:74px;object-fit:cover;border-radius:10px;border:1px solid rgba(255,255,255,.16)}
.lb__form{background:#fff;padding:30px 30px 26px;color:var(--ink)}
.lb__form h3{margin:0 0 5px;font-size:19px;font-weight:800}
.lb__form .cap{margin:0 0 16px;color:var(--muted);font-size:14px}
.lb__form label{display:block;font-size:13.3px;font-weight:700;color:var(--ink);margin:0 0 5px}
.lb__form input,.lb__form textarea{width:100%;border:1.5px solid var(--line);border-radius:11px;
  padding:11px 13px;font:inherit;font-size:15px;color:var(--ink);background:#fff;margin-bottom:13px;
  transition:border-color .18s,box-shadow .18s;-webkit-appearance:none}
.lb__form textarea{min-height:74px;resize:vertical}
.lb__form input:focus,.lb__form textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(33,150,243,.14)}
.lb__btn{width:100%;border:none;cursor:pointer;background:var(--blue);color:#fff;font:inherit;font-weight:800;
  font-size:16px;padding:14px 20px;border-radius:12px;box-shadow:0 12px 26px rgba(33,150,243,.26);transition:.2s}
.lb__btn:hover:not(:disabled){background:var(--blue-d,#1877cf);transform:translateY(-2px)}
.lb__btn:disabled{opacity:.6;cursor:default;transform:none}
.lb__consent{margin:11px 0 0;color:var(--muted2,#8a94a1);font-size:12.3px;line-height:1.45}
.lb__msg{display:none;border-radius:11px;padding:11px 13px;font-size:14.3px;margin-bottom:13px}
.lb__msg.ok{display:block;background:#e8f7ef;color:#14724a;border:1px solid #bfe6d2}
.lb__msg.err{display:block;background:#fdecea;color:#b3261e;border:1px solid #f5c6c2}
.lb__form label .req{color:#e5484d;font-weight:800}
.lb__form label i{font-style:normal;font-weight:500;color:var(--muted-2,#8a94a1)}
.hp{position:absolute!important;left:-9999px!important;width:1px!important;height:1px!important;opacity:0!important}
@media(max-width:820px){.lb{grid-template-columns:1fr}.lb__left{padding:28px 24px 24px}.lb__form{padding:26px 24px 24px}}