/* ============================================================
   SOAR — статья «Как работает живая нить 71К»
   Тот же дизайн-язык, что и главная. Только стили статьи.
   ============================================================ */

/* ===== article hero ===== */
.art-hero{position:relative;overflow:hidden;isolation:isolate;
  padding:clamp(126px,15vw,168px) 0 clamp(48px,7vw,90px);
  background:linear-gradient(180deg,var(--paper),var(--paper-2))}
.art-hero .wrap{position:relative;z-index:2}
.art-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:clamp(30px,5vw,66px);align-items:center}
.art-hero .kicker{margin-bottom:20px}
.art-hero h1{font-size:clamp(33px,5.2vw,62px);letter-spacing:-.03em}
.art-hero .lead{margin-top:22px;font-size:clamp(17px,1.6vw,21px);max-width:54ch}
.art-hero .lead b{color:var(--petrol);font-weight:600}
.art-hero .art-hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}

/* media panel (reuses the tech-media look) */
.art-media{position:relative;border-radius:var(--r-lg);overflow:hidden;aspect-ratio:4/5;
  background:radial-gradient(120% 90% at 60% 20%,#1c4552,#0d242c);box-shadow:var(--sh-3)}
.art-media .fiber{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  mix-blend-mode:screen;opacity:.9}
.art-media .art-num{position:absolute;left:0;right:0;bottom:26px;text-align:center;z-index:2}
.art-media .art-num b{font-family:var(--disp);font-weight:800;font-size:clamp(58px,9vw,116px);
  color:#fff;letter-spacing:-.04em;line-height:.85;display:block}
.art-media .art-num .lbl{display:block;margin-top:10px;font-size:12.5px;letter-spacing:.22em;
  text-transform:uppercase;color:var(--sky)}

/* ===== table of contents ===== */
.art-toc{padding:clamp(40px,6vw,64px) 0 0}
.art-toc .toc-lbl{font-family:var(--text);font-size:13px;font-weight:600;letter-spacing:.14em;
  text-transform:uppercase;color:var(--muted);margin-bottom:16px}
.toc-links{display:flex;flex-wrap:wrap;gap:12px}
.toc-links a{display:inline-flex;align-items:center;gap:12px;padding:13px 22px 13px 13px;
  border-radius:var(--r-pill);background:#fff;border:1px solid var(--line);box-shadow:var(--sh-1);
  font-weight:600;font-size:15px;color:var(--petrol);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .3s}
.toc-links a:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--sky)}
.toc-links a .n{width:28px;height:28px;flex:none;border-radius:50%;background:var(--sky-soft);color:var(--petrol);
  display:grid;place-items:center;font-family:var(--disp);font-size:13px;font-weight:700}

/* ===== article body ===== */
.art-body{padding-top:clamp(52px,6vw,72px)}
.art-block{max-width:820px}
.art-block + .art-block{margin-top:clamp(56px,7vw,96px);padding-top:clamp(56px,7vw,96px);
  border-top:1px solid var(--line)}
.art-block .kicker{margin-bottom:18px}
.art-block h2{font-size:clamp(28px,3.7vw,46px)}
.prose{max-width:720px;margin-top:22px}
.prose p{font-size:clamp(16px,1.25vw,18px);color:var(--body);line-height:1.72;margin-bottom:18px}
.prose p.lead-answer{font-size:clamp(17px,1.4vw,20px);color:var(--petrol);font-weight:500;line-height:1.6}
.prose p.lead-answer b{color:var(--orange);font-weight:700}
.prose b,.prose strong{color:var(--petrol);font-weight:600}
.prose h3{margin-top:34px;margin-bottom:14px;font-size:clamp(18px,1.6vw,22px)}
.prose ul{list-style:none;margin:6px 0 24px}
.prose ul li{position:relative;padding-left:34px;margin-bottom:14px;
  font-size:clamp(15px,1.2vw,17px);color:var(--body);line-height:1.6}
.prose ul li::before{content:"";position:absolute;left:0;top:.15em;width:20px;height:20px;border-radius:50%;
  background:var(--sky-soft);border:1px solid var(--line)}
.prose ul li::after{content:"";position:absolute;left:7px;top:.35em;width:5px;height:9px;
  border-right:2px solid var(--orange);border-bottom:2px solid var(--orange);transform:rotate(45deg)}
.prose ul li b{color:var(--petrol)}

/* highlighted callout (ISO / key idea) */
.art-callout{margin-top:30px;background:var(--petrol);color:#fff;border-radius:var(--r-lg);
  padding:clamp(26px,3vw,40px);box-shadow:var(--sh-3);position:relative;overflow:hidden}
.art-callout .co-ico{width:46px;height:46px;border-radius:14px;background:rgba(255,255,255,.1);
  display:grid;place-items:center;color:var(--orange);margin-bottom:16px}
.art-callout .co-ico svg{width:24px;height:24px}
.art-callout h3{color:#fff;margin:0 0 8px}
.art-callout p{color:rgba(255,255,255,.82);font-size:15.5px;line-height:1.6;margin:0}
.art-callout .iso-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.art-callout .iso-row span{font-size:13px;font-weight:600;color:#fff;background:rgba(255,255,255,.09);
  border:1px solid rgba(255,255,255,.16);padding:8px 14px;border-radius:var(--r-pill)}

/* ===== comparison table: живая нить vs серебро ===== */
.cmp{background:linear-gradient(180deg,var(--paper-2),var(--paper))}
.cmp-scroll{overflow-x:auto;border-radius:var(--r-lg);border:1px solid var(--line);
  box-shadow:var(--sh-1);background:#fff;-webkit-overflow-scrolling:touch}
.cmp-table{width:100%;border-collapse:collapse;min-width:620px}
.cmp-table th,.cmp-table td{padding:18px 22px;text-align:left;vertical-align:top;
  border-bottom:1px solid var(--line);font-size:15px;line-height:1.45}
.cmp-table thead th{font-family:var(--disp);font-weight:700;color:var(--petrol);
  background:var(--paper-2);font-size:14px;letter-spacing:-.01em}
.cmp-table thead th.soar{color:var(--orange)}
.cmp-table td:first-child,.cmp-table th:first-child{font-weight:600;color:var(--petrol);width:34%}
.cmp-table td.soar{color:var(--petrol)}
.cmp-table td.soar b{color:var(--orange)}
.cmp-table td.silver{color:var(--muted)}
.cmp-table tbody tr:last-child td{border-bottom:0}
.cmp-note{font-size:13px;color:var(--muted);margin-top:16px;max-width:70ch;line-height:1.55}

/* ===== article CTA ===== */
.art-cta .cta-band{position:relative;overflow:hidden;text-align:center;
  background:linear-gradient(150deg,var(--petrol),var(--petrol2));color:#fff;
  border-radius:var(--r-lg);padding:clamp(42px,5.5vw,80px) clamp(24px,4vw,56px)}
.art-cta .cta-band .glow{opacity:.55}
.art-cta h2{color:#fff;position:relative;z-index:2}
.art-cta p{color:rgba(255,255,255,.85);font-size:clamp(16px,1.4vw,19px);
  max-width:52ch;margin:16px auto 0;position:relative;z-index:2}
.art-cta .cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;
  margin-top:30px;position:relative;z-index:2}

/* ===== responsive ===== */
@media(max-width:900px){
  .art-grid{grid-template-columns:1fr;gap:34px}
  .art-media{max-width:420px;margin:0 auto;order:2}
}
@media(max-width:640px){
  .art-cta .cta-actions{flex-direction:column;align-items:stretch}
  .art-cta .cta-actions .btn{justify-content:center}
}