/* Metall Project — основная таблица стилей */
:root{
  --accent:#7056f5;
  --accent-2:#a35cf2;
  --grad:linear-gradient(90deg,#6a52f4 0%,#a15ef3 100%);
  --text:#222429;
  --muted:#5c6069;
  --soft:#8a8f99;
  --line:#ececf1;
  --bg:#ffffff;
  --bg-soft:#f7f7fb;
  --card-shadow:0 6px 24px rgba(30,30,60,.07);
  --card-shadow-h:0 10px 32px rgba(60,40,140,.13);
  --radius:6px;
  --wrap:960px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font-family:"Nunito Sans","Segoe UI",Arial,sans-serif;font-size:15px;line-height:1.65}
a{color:var(--accent);text-decoration:none;transition:color .2s}
a:hover{color:var(--accent-2)}
img{max-width:100%;height:auto;display:block}
h1,h2,h3,h4{font-family:"Nunito Sans","Segoe UI",Arial,sans-serif;font-weight:800;color:var(--text);line-height:1.28;margin:0 0 .6em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 16px}

/* Header */
.site-header{border-bottom:1px solid var(--line);background:#fff;position:relative;z-index:20}
.site-header .wrap{display:flex;justify-content:space-between;align-items:flex-start;padding-top:14px;padding-bottom:14px;gap:20px}
.brand{display:block;color:var(--text)}
.brand-name{display:block;font-size:22px;font-weight:700;color:var(--accent);line-height:1.15;letter-spacing:.1px}
.brand-tag{display:block;font-size:11.5px;color:var(--text);line-height:1.45;max-width:150px;margin-top:2px}
.main-nav ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;justify-content:flex-end;max-width:340px;gap:6px 22px;padding-top:4px}
.main-nav a{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.6px;color:var(--text)}
.main-nav a:hover,.main-nav a.active{color:var(--accent)}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:4px;width:40px;height:36px;cursor:pointer;padding:8px}
.nav-toggle span{display:block;height:2px;background:var(--text);margin:4px 0}

/* Pills */
.pills{display:flex;flex-wrap:wrap;gap:5px;margin-bottom:12px}
.pill{display:inline-block;background:var(--grad);color:#fff!important;font-size:9.5px;font-weight:700;line-height:1;padding:5px 9px;border-radius:20px;letter-spacing:.2px}
.pill:hover{opacity:.9}

/* Cards (masonry) */
.feed{padding:46px 0 30px}
.masonry{display:flex;gap:28px;align-items:flex-start}
.masonry .col{flex:1 1 0;min-width:0;display:flex;flex-direction:column;gap:28px}
.card{background:#fff;border-radius:var(--radius);box-shadow:var(--card-shadow);padding:20px 20px 18px;transition:box-shadow .25s,transform .25s}
.card:hover{box-shadow:var(--card-shadow-h);transform:translateY(-2px)}
.card h2,.card h3{font-size:21px;line-height:1.3;margin:0 0 14px;font-weight:800}
.card h2 a,.card h3 a{color:var(--text)}
.card h2 a:hover,.card h3 a:hover{color:var(--accent)}
.card p{font-size:12.5px;line-height:1.7;color:var(--muted);margin:0 0 16px}
.author{display:flex;align-items:center;gap:8px;font-size:11.5px;color:var(--muted)}
.avatar{width:22px;height:22px;border-radius:50%;background:#e4e4ea;flex:0 0 22px;position:relative;overflow:hidden}
.avatar:before{content:"";position:absolute;left:7px;top:4px;width:8px;height:8px;border-radius:50%;background:#c5c6cf}
.avatar:after{content:"";position:absolute;left:4px;top:13px;width:14px;height:12px;border-radius:50%;background:#c5c6cf}
.author .rt{margin-left:auto;color:var(--soft)}

/* Sections */
.section{padding:56px 0}
.section.soft{background:var(--bg-soft)}
.section-head{margin-bottom:28px}
.section-head .kicker{display:inline-block;margin-bottom:10px}
.section-head h2{font-size:28px;margin:0 0 10px}
.section-head p{color:var(--muted);margin:0;max-width:720px}
.btn{display:inline-block;background:var(--grad);color:#fff!important;font-weight:700;font-size:12px;text-transform:uppercase;letter-spacing:.6px;padding:13px 24px;border-radius:30px;border:0;cursor:pointer;font-family:inherit;transition:box-shadow .2s,opacity .2s}
.btn:hover{box-shadow:0 8px 22px rgba(112,86,245,.35)}
.btn.ghost{background:#fff;color:var(--accent)!important;box-shadow:inset 0 0 0 2px var(--accent)}
.btn:disabled{opacity:.5;cursor:not-allowed;box-shadow:none}
.more{text-align:center;margin-top:34px}

/* Hero */
.hero{padding:54px 0 40px}
.hero-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:28px;align-items:stretch}
.hero h1{font-size:36px;margin-bottom:16px}
.hero .lead{font-size:16px;color:var(--muted);margin:0 0 24px}
.hero .actions{display:flex;gap:12px;flex-wrap:wrap}
.stat-list{list-style:none;margin:0;padding:0;align-self:center;display:grid;grid-template-columns:1fr 1fr;gap:16px}
.stat-list li{background:#fff;border-radius:var(--radius);box-shadow:var(--card-shadow);padding:18px}
.stat-list b{display:block;font-size:28px;line-height:1.1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat-list span{font-size:12.5px;color:var(--muted)}

/* Partners */
.partners{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.partner{display:flex;flex-direction:column}
.partner-logo{display:flex;align-items:center;justify-content:center;height:150px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);margin-bottom:16px;padding:14px;transition:border-color .2s}
.partner-logo:hover{border-color:var(--accent)}
.partner-logo img{max-height:118px;width:auto;object-fit:contain}
.partner h3{font-size:18px;margin-bottom:10px}
.partner p{font-size:13px;color:var(--muted);margin:0 0 10px;line-height:1.7}
.partner p a{font-weight:700}

/* Topic tiles */
.tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.tile{display:block;background:#fff;border-radius:var(--radius);box-shadow:var(--card-shadow);padding:20px;color:var(--text);transition:box-shadow .25s,transform .25s}
.tile:hover{box-shadow:var(--card-shadow-h);transform:translateY(-2px);color:var(--text)}
.tile b{display:block;font-size:16px;margin:10px 0 6px;line-height:1.3}
.tile span{display:block;font-size:12.5px;color:var(--muted)}
.tile .num{font-size:12px;font-weight:700;color:var(--accent)}
.tiles.three{grid-template-columns:repeat(3,1fr)}

/* Lists of links */
.link-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.link-list{list-style:none;margin:0;padding:0}
.link-list li{padding:11px 0;border-bottom:1px solid var(--line);font-size:14px;line-height:1.45}
.link-list li a{color:var(--text);font-weight:700}
.link-list li a:hover{color:var(--accent)}
.link-cols h3{font-size:17px;margin-bottom:8px}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:st}
.step{background:#fff;border-radius:var(--radius);box-shadow:var(--card-shadow);padding:22px 20px;position:relative}
.step:before{counter-increment:st;content:"0" counter(st);font-weight:800;font-size:26px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;display:block;margin-bottom:8px}
.step b{display:block;font-size:15.5px;margin-bottom:6px}
.step p{font-size:13px;color:var(--muted);margin:0}

.quote-box{background:#fff;border-left:4px solid var(--accent);box-shadow:var(--card-shadow);border-radius:var(--radius);padding:26px 30px;font-size:18px;line-height:1.6}
.quote-box small{display:block;font-size:12.5px;color:var(--soft);margin-top:12px}

.split{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:start}
.checks{list-style:none;margin:0;padding:0}
.checks li{position:relative;padding:0 0 12px 28px;font-size:14px;color:var(--muted)}
.checks li:before{content:"";position:absolute;left:0;top:5px;width:16px;height:16px;border-radius:50%;background:var(--grad)}
.checks li:after{content:"";position:absolute;left:5px;top:9px;width:6px;height:3px;border-left:2px solid #fff;border-bottom:2px solid #fff;transform:rotate(-45deg)}

.terms{display:grid;grid-template-columns:1fr 1fr;gap:16px 28px}
.term{border-bottom:1px solid var(--line);padding-bottom:14px}
.term b{display:block;font-size:15px;margin-bottom:4px}
.term span{font-size:13px;color:var(--muted)}

/* FAQ */
.faq details{background:#fff;border-radius:var(--radius);box-shadow:var(--card-shadow);margin-bottom:12px;padding:0 20px}
.faq summary{cursor:pointer;font-weight:800;padding:16px 26px 16px 0;list-style:none;position:relative;font-size:15px}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";position:absolute;right:0;top:12px;font-size:22px;color:var(--accent);font-weight:400}
.faq details[open] summary:after{content:"–"}
.faq details p{margin:0 0 16px;color:var(--muted);font-size:14px}

/* Forms */
.form-card{background:#fff;border-radius:var(--radius);box-shadow:var(--card-shadow);padding:28px}
.form-row{margin-bottom:14px}
.form-row label{display:block;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.4px;margin-bottom:6px}
.form-row input,.form-row textarea{width:100%;border:1px solid #dcdce4;border-radius:4px;padding:11px 13px;font:inherit;font-size:14px;color:var(--text);background:#fff;transition:border-color .2s}
.form-row input:focus,.form-row textarea:focus{outline:none;border-color:var(--accent)}
.form-row textarea{min-height:130px;resize:vertical}
.agree{display:flex;gap:10px;align-items:flex-start;font-size:12.5px;color:var(--muted);line-height:1.55;margin:4px 0 16px;cursor:pointer}
.agree input{margin:2px 0 0;width:16px;height:16px;flex:0 0 16px;accent-color:var(--accent);cursor:pointer}
.form-note{font-size:13px;margin-top:12px;display:none}
.form-note.ok{display:block;color:#1d8a4e}
.form-note.err{display:block;color:#c0392b}
.subscribe{display:grid;grid-template-columns:1.1fr 1fr;gap:36px;align-items:center}
.subscribe .inline{display:flex;gap:10px}
.subscribe .inline input{flex:1}

/* Page / article */
.page-head{padding:44px 0 8px}
.crumbs{font-size:12px;color:var(--soft);margin-bottom:16px}
.crumbs a{color:var(--soft)}
.crumbs a:hover{color:var(--accent)}
.page-head h1{font-size:34px;margin-bottom:14px;max-width:820px}
.page-head .lead{color:var(--muted);max-width:760px;margin:0}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:32px;padding:26px 0 56px;align-items:start}
.layout.full{grid-template-columns:minmax(0,1fr)}
.content-card{background:#fff;border-radius:var(--radius);box-shadow:var(--card-shadow);padding:34px 40px}
.prose{font-size:16px;line-height:1.75;color:#2d3038}
.prose h2{font-size:24px;margin:1.6em 0 .6em;scroll-margin-top:20px}
.prose h3{font-size:19px;margin:1.4em 0 .5em}
.prose h2:first-child{margin-top:0}
.prose p{margin:0 0 1.05em}
.prose ul,.prose ol{margin:0 0 1.1em;padding-left:1.4em}
.prose li{margin-bottom:.4em}
.prose blockquote{margin:1.4em 0;padding:16px 22px;background:var(--bg-soft);border-left:4px solid var(--accent);border-radius:0 var(--radius) var(--radius) 0;color:var(--text)}
.prose blockquote p:last-child{margin:0}
.prose table{width:100%;border-collapse:collapse;margin:0 0 1.3em;font-size:14px;display:block;overflow-x:auto}
.prose th,.prose td{border:1px solid var(--line);padding:9px 12px;text-align:left;vertical-align:top}
.prose th{background:var(--bg-soft);font-weight:800}
.prose strong{color:var(--text)}
.article-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:6px}
.article-meta .author{font-size:13px}
.sidebar{position:sticky;top:20px;display:flex;flex-direction:column;gap:22px}
.widget{background:#fff;border-radius:var(--radius);box-shadow:var(--card-shadow);padding:20px}
.widget h4{font-size:12px;text-transform:uppercase;letter-spacing:.7px;margin-bottom:10px;color:var(--accent)}
.widget ul{list-style:none;margin:0;padding:0}
.widget li{padding:7px 0;border-bottom:1px solid var(--line);font-size:13px;line-height:1.45}
.widget li:last-child{border-bottom:0}
.widget li a{color:var(--text)}
.widget li a:hover{color:var(--accent)}
.widget li span{color:var(--soft);float:right}
.toc ol{margin:0;padding-left:18px;font-size:13px}
.toc li{margin-bottom:6px;border:0;padding:0}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:28px}
.post-nav a{display:block;background:#fff;border-radius:var(--radius);box-shadow:var(--card-shadow);padding:16px 18px;color:var(--text);font-weight:700;font-size:14px;line-height:1.4}
.post-nav a small{display:block;color:var(--soft);font-weight:400;font-size:11px;text-transform:uppercase;letter-spacing:.5px;margin-bottom:4px}
.post-nav a.next{text-align:right}
.related{margin-top:40px}
.related h2{font-size:22px;margin-bottom:20px}
.author-box{display:flex;gap:16px;align-items:center;margin-top:30px;padding-top:24px;border-top:1px solid var(--line)}
.author-box .avatar{width:54px;height:54px;flex:0 0 54px}
.author-box .avatar:before{left:18px;top:10px;width:18px;height:18px}
.author-box .avatar:after{left:10px;top:31px;width:34px;height:28px}
.author-box b{display:block}
.author-box span{font-size:13px;color:var(--muted)}

/* Pagination */
.pagination{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;margin-top:40px}
.pagination a,.pagination span{display:inline-flex;align-items:center;justify-content:center;min-width:38px;height:38px;padding:0 12px;border-radius:20px;font-size:13px;font-weight:700;background:#fff;box-shadow:var(--card-shadow);color:var(--text)}
.pagination .cur{background:var(--grad);color:#fff}

/* Footer */
.site-footer{border-top:1px solid var(--line);background:#fff;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:28px;padding:44px 0 30px}
.footer-grid h4{font-size:11px;text-transform:uppercase;letter-spacing:.8px;margin-bottom:12px}
.footer-grid ul{list-style:none;margin:0;padding:0}
.footer-grid li{margin-bottom:7px;font-size:13px;line-height:1.4}
.footer-grid li a{color:var(--muted)}
.footer-grid li a:hover{color:var(--accent)}
.footer-grid p{font-size:13px;color:var(--muted);margin:10px 0 0}
.footer-bottom{border-top:1px solid var(--line);padding:18px 0;font-size:12.5px;color:var(--muted)}
.footer-bottom .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* Cookie */
.cookie{position:fixed;left:16px;right:16px;bottom:16px;z-index:99;max-width:560px;background:#fff;border-radius:8px;box-shadow:0 12px 40px rgba(20,20,50,.22);padding:18px 20px;display:none;gap:16px;align-items:center;font-size:13px;color:var(--muted);line-height:1.55}
.cookie.show{display:flex}
.cookie .btn{padding:10px 18px;white-space:nowrap}

/* 404 */
.e404{text-align:center;padding:80px 0 70px}
.e404 .code{font-size:120px;font-weight:800;line-height:1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.e404 p{color:var(--muted);max-width:520px;margin:10px auto 26px}

/* Responsive */
@media (max-width:900px){
  .hero-grid,.split,.subscribe{grid-template-columns:1fr}
  .tiles,.steps{grid-template-columns:repeat(2,1fr)}
  .partners,.link-cols,.tiles.three{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .layout{grid-template-columns:1fr}
  .sidebar{position:static}
  .masonry{flex-direction:column;gap:22px}
  .masonry .col{gap:22px;width:100%}
}
@media (max-width:640px){
  .nav-toggle{display:block}
  .main-nav{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line);padding:10px 16px 16px}
  .main-nav.open{display:block}
  .main-nav ul{flex-direction:column;max-width:none;gap:12px}
  .hero h1,.page-head h1{font-size:27px}
  .section-head h2{font-size:23px}
  .partners,.link-cols,.tiles,.tiles.three,.steps,.terms,.footer-grid,.post-nav{grid-template-columns:1fr}
  .content-card{padding:22px 18px}
  .prose{font-size:15.5px}
  .subscribe .inline{flex-direction:column}
  .cookie{flex-direction:column;align-items:flex-start}
  .stat-list{grid-template-columns:1fr 1fr}
}