/* interhet.ru — общий стиль текстовых страниц (документы, SEO-лендинги) */
:root{
  --bg:#090b10;--card:#14171f;--card2:#1b1f29;--mut:#8a94a3;--fg:#eef2f7;
  --red:#ff2d4f;--red2:#ff5d76;--tw:#9146FF;--ok:#2ea043;--line:#242a35;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--fg);line-height:1.65;
  font-family:'Inter',-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif}
body::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:radial-gradient(60vw 45vh at 85% -10%,rgba(255,45,79,.13),transparent 60%),
             radial-gradient(45vw 35vh at 0% 5%,rgba(145,70,255,.10),transparent 60%)}
a{color:var(--red2)}
a:hover{color:var(--red)}

.topbar{border-bottom:1px solid var(--line);background:rgba(9,11,16,.85);backdrop-filter:blur(8px);
  position:sticky;top:0;z-index:20}
.topbar .in{max-width:860px;margin:0 auto;padding:14px 20px;display:flex;align-items:center;gap:16px}
.brand{font-weight:900;letter-spacing:-.02em;font-size:19px;color:var(--fg);text-decoration:none;line-height:1}
.brand .h{color:var(--red);font-size:1.18em}
.topbar nav{margin-left:auto;display:flex;gap:16px;flex-wrap:wrap;font-size:13.5px}
.topbar nav a{color:var(--mut);text-decoration:none}
.topbar nav a:hover{color:var(--fg)}

.wrap{max-width:860px;margin:0 auto;padding:38px 20px 70px}
h1{font-size:clamp(26px,5vw,40px);font-weight:800;letter-spacing:-.02em;line-height:1.15;margin:0 0 10px}
h2{font-size:clamp(19px,3vw,25px);font-weight:800;margin:38px 0 12px;letter-spacing:-.01em}
h3{font-size:17px;font-weight:700;margin:24px 0 8px}
p{margin:0 0 14px}
ul,ol{margin:0 0 14px;padding-left:22px}
li{margin-bottom:7px}
.lead{color:var(--mut);font-size:clamp(15px,2.2vw,17.5px);margin-bottom:8px}
.meta{color:var(--mut);font-size:13px;margin-bottom:26px}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px 22px;margin:22px 0}
.card.warn{border-color:rgba(255,45,79,.4);background:linear-gradient(180deg,rgba(255,45,79,.08),rgba(255,45,79,.02))}
.card.ok{border-color:rgba(46,160,67,.4);background:rgba(46,160,67,.06)}
.card h3{margin-top:0}
.fill{color:var(--red2);background:rgba(255,45,79,.10);border:1px dashed rgba(255,45,79,.45);
  border-radius:6px;padding:1px 7px;font-size:.94em;white-space:nowrap}
code,.mono{font-family:ui-monospace,Consolas,monospace;font-size:.93em;background:#0a0c11;
  border:1px solid var(--line);border-radius:6px;padding:2px 7px;display:inline-block}
.toc{background:var(--card2);border:1px solid var(--line);border-radius:14px;padding:16px 20px;margin:0 0 30px}
.toc ol{margin:0;padding-left:20px;columns:2;column-gap:26px}
.toc li{margin-bottom:4px;font-size:14px}
.toc a{color:var(--mut);text-decoration:none}
.toc a:hover{color:var(--red2)}
@media(max-width:620px){.toc ol{columns:1}}
table{width:100%;border-collapse:collapse;margin:0 0 18px;font-size:14.5px}
th,td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
th{background:var(--card2);font-weight:700}
.btn{display:inline-flex;align-items:center;gap:9px;background:var(--tw);color:#fff;font-weight:700;
  text-decoration:none;padding:13px 22px;border-radius:12px;border:0;cursor:pointer;font-size:15px;
  box-shadow:0 10px 28px rgba(145,70,255,.32)}
.btn:hover{filter:brightness(1.08);color:#fff}
.btn.red{background:linear-gradient(135deg,var(--red),#ff5d76);box-shadow:0 10px 28px rgba(255,45,79,.35)}
footer{border-top:1px solid var(--line);color:var(--mut);font-size:13px;padding:26px 20px 40px;text-align:center}
footer a{color:var(--mut);text-decoration:none}
footer a:hover{color:var(--red)}
footer .row{max-width:860px;margin:0 auto;display:flex;gap:8px 18px;flex-wrap:wrap;justify-content:center}
footer .cp{margin-top:12px;opacity:.75}