/* Stacknavi — Brand Stylesheet (Dark-first, Ink + Iris-Violett) */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700&family=Inter:wght@400;500;600&display=swap');
:root{--ink:#0F1115;--ink-2:#15171C;--ink-3:#0B0C0F;--line:#23262E;--text:#E7E9EE;--muted:#9A9AA2;--accent:#5B5BD6;--accent-light:#8A8AF0;--coral:#FF6B5C;--maxw:1080px;--radius:16px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--ink);color:var(--text);font-family:'Inter','Poppins',system-ui,Segoe UI,Helvetica,Arial,sans-serif;font-size:17px;line-height:1.7;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:'Poppins',system-ui,sans-serif;line-height:1.2;letter-spacing:-.02em;color:#fff;font-weight:600}
a{color:var(--accent-light);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.brand{font-family:'Poppins',sans-serif;font-weight:600;font-size:24px;letter-spacing:-.04em;color:#fff;display:inline-flex;align-items:baseline}
.brand .dot{color:var(--accent)}
header.nav{position:sticky;top:0;z-index:50;background:rgba(15,17,21,.82);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;gap:28px;height:66px}
.nav nav{display:flex;gap:22px;margin-left:auto}
.nav nav a{color:var(--muted);font-size:15px;font-weight:500}
.nav nav a:hover{color:#fff;text-decoration:none}
.btn{display:inline-block;background:var(--accent);color:#fff;padding:11px 18px;border-radius:10px;font-weight:600;font-size:15px;border:1px solid var(--accent);cursor:pointer}
.btn:hover{background:#6d6de0;text-decoration:none}
.btn--ghost{background:transparent;color:var(--accent-light);border:1px solid #34343f}
.btn--ghost:hover{background:rgba(91,91,214,.12)}
@media(max-width:780px){.nav nav{display:none}}
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(620px 300px at 18% -10%,rgba(91,91,214,.22),transparent 70%),repeating-linear-gradient(115deg,rgba(138,138,240,.06) 0 1px,transparent 1px 46px);pointer-events:none}
.hero .wrap{position:relative;padding:96px 24px 88px}
.hero h1{font-size:clamp(34px,5vw,58px);max-width:16ch;margin:0 0 18px}
.hero h1 .hl{color:var(--accent-light)}
.hero p.sub{font-size:19px;color:var(--muted);max-width:60ch;margin:0 0 14px}
.hero .micro{font-size:14px;color:#6f7480;margin:18px 0 28px}
.hero .cta{display:flex;gap:14px;flex-wrap:wrap}
section{padding:72px 0}
.section-head{margin:0 0 36px}
.section-head h2{font-size:clamp(26px,3.4vw,38px);margin:0 0 10px}
.section-head p{color:var(--muted);margin:0;max-width:62ch}
.eyebrow{color:var(--accent-light);font-weight:600;font-size:13px;letter-spacing:.12em;text-transform:uppercase;margin:0 0 10px}
.proof{background:var(--ink-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.proof .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:26px 24px}
.proof .item{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--muted)}
.proof .item b{color:#fff;font-weight:600}
.proof .ic{color:var(--accent-light);flex:0 0 auto;margin-top:2px}
@media(max-width:780px){.proof .wrap{grid-template-columns:1fr 1fr}}
.grid{display:grid;gap:20px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
@media(max-width:860px){.grid-3,.grid-2{grid-template-columns:1fr}}
.card{background:var(--ink-2);border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:.18s}
.card:hover{border-color:var(--accent);transform:translateY(-2px)}
.tag{display:inline-block;font-size:12px;font-weight:600;padding:4px 10px;border-radius:999px;background:rgba(91,91,214,.16);color:var(--accent-light);margin-bottom:14px}
.tag--grey{background:#23262e;color:var(--muted)}
.card h3{font-size:20px;margin:0 0 8px}
.card p{color:var(--muted);font-size:15px;margin:0 0 16px}
.chips{display:flex;flex-wrap:wrap;gap:7px;margin:14px 0}
.chip{font-size:12.5px;color:#c7cbd4;background:#1c1f26;border:1px solid var(--line);padding:4px 9px;border-radius:7px}
.price{font-family:'Poppins',sans-serif;font-weight:700;color:#fff;font-size:22px;margin:6px 0 14px}
.price span{font-size:13px;color:var(--muted);font-weight:500}
.cardlink{font-weight:600;font-size:14.5px;color:var(--accent-light)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:40px}
@media(max-width:860px){.split{grid-template-columns:1fr}}
.split h3{font-size:19px;margin:0 0 10px}
.split p{color:var(--muted);margin:0}
.news{background:linear-gradient(180deg,#1a1a30,#15152a);border:1px solid #2d2d52;border-radius:22px;padding:48px;text-align:center}
.news h2{font-size:32px;margin:0 0 12px}
.news p{color:#c8c8e0;max-width:54ch;margin:0 auto 24px}
.news form{display:flex;gap:10px;max-width:440px;margin:0 auto;flex-wrap:wrap;justify-content:center}
.news input{flex:1 1 240px;padding:13px 16px;border-radius:10px;border:1px solid #3a3a5c;background:#0d0d18;color:#fff;font-size:15px}
.news .micro{color:#8a8aa0;font-size:13px;margin-top:14px}
.steps{counter-reset:s;display:grid;gap:18px}
.step{display:flex;gap:14px;align-items:flex-start}
.step .num{counter-increment:s;flex:0 0 auto;width:30px;height:30px;border-radius:8px;background:rgba(91,91,214,.16);color:var(--accent-light);font-weight:700;font-family:'Poppins';display:grid;place-items:center}
.step .num::before{content:counter(s)}
footer{background:var(--ink-3);border-top:1px solid var(--line);margin-top:40px}
footer .disc{background:#101218;border-bottom:1px solid var(--line);color:var(--muted);font-size:13.5px}
footer .disc .wrap{padding:16px 24px}
footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px;padding:42px 24px}
footer h4{color:#fff;font-size:14px;margin:0 0 14px}
footer a{display:block;color:var(--muted);font-size:14px;margin-bottom:9px}
footer a:hover{color:#fff;text-decoration:none}
footer .copy{border-top:1px solid var(--line);padding:18px 24px;color:#6f7480;font-size:13px}
@media(max-width:780px){footer .cols{grid-template-columns:1fr 1fr}}
.article{max-width:760px;margin:0 auto;padding:48px 24px 64px}
.article .crumbs{color:var(--muted);font-size:13px;margin-bottom:18px}
.article h1{font-size:clamp(28px,4vw,42px);margin:0 0 10px}
.article h2{font-size:26px;margin:42px 0 14px;padding-top:10px;border-top:1px solid var(--line)}
.article h3{font-size:20px;margin:28px 0 10px}
.article p,.article li{color:#d7dae1}
.article a{color:var(--accent-light)}
.article blockquote{margin:22px 0;padding:16px 20px;background:var(--ink-2);border-left:3px solid var(--accent);border-radius:0 10px 10px 0;color:#c8ccd5}
.article table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14.5px}
.article th,.article td{border:1px solid var(--line);padding:9px 12px;text-align:left}
.article th{background:var(--ink-2);color:#fff}
.article code{background:#1c1f26;padding:2px 6px;border-radius:5px;font-size:.9em}
.article hr{border:none;border-top:1px solid var(--line);margin:34px 0}
.meta-note{font-size:13px;color:#6f7480}
.backlink{display:inline-block;margin:8px 0 0;color:var(--muted);font-size:14px}