/* ===================== ORBIT VPN — Knowledge Base ===================== */
:root{
  --bg:#0a0b14;
  --bg-soft:#11132100;
  --panel:#12152400;
  --panel-solid:#141728;
  --panel-2:#1a1e34;
  --border:#242a45;
  --border-soft:#1c2138;
  --text:#e7eaf6;
  --muted:#9aa3c4;
  --muted-2:#6b7398;
  --brand:#7c5cff;
  --brand-2:#21d4fd;
  --brand-grad:linear-gradient(135deg,#7c5cff 0%,#21d4fd 100%);
  --ok:#3ddc97;
  --warn:#ffb454;
  --info:#54a0ff;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 20px 60px -20px rgba(0,0,0,.6);
  --maxw:1280px;
  --sb:280px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Inter,Helvetica,Arial,sans-serif;
}
/* ---- light theme ---- */
[data-theme="light"]{
  --bg:#f4f6fc;
  --panel-solid:#ffffff;
  --panel-2:#eef1fa;
  --border:#dde2f0;
  --border-soft:#e7ebf6;
  --text:#1a1f33;
  --muted:#5a627d;
  --muted-2:#8a91ab;
  --shadow:0 20px 50px -22px rgba(60,70,120,.35);
}
[data-theme="light"] code{background:#eef1fa;border-color:#dde2f0;color:#4a3aa8}
[data-theme="light"] pre{background:#0d1020;border-color:#222}
[data-theme="light"] pre code{color:#bfe3ff}
[data-theme="light"] .topbar{background:rgba(255,255,255,.82)}
[data-theme="light"] th{color:#1a1f33}
[data-theme="light"] body::after{opacity:.0}
[data-theme="light"] .step .num,[data-theme="light"] .btn-primary,[data-theme="light"] .card-ico{color:#fff}
[data-theme="light"] .btn-primary{color:#fff}
/* активные пункты навигации в светлой теме — тёмный текст вместо белого */
[data-theme="light"] .nav-cat.active{color:var(--text)}
[data-theme="light"] .nav-sub a.active{color:var(--text)}
[data-theme="light"] .dev-tab.active{color:#fff}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);background:var(--bg);color:var(--text);
  -webkit-font-smoothing:antialiased;line-height:1.6;font-size:16px;
  overflow-x:hidden;
}
/* animated starfield / orbit glow background */
body::before{
  content:"";position:fixed;inset:0;z-index:-2;
  background:
    radial-gradient(900px 600px at 85% -10%,rgba(124,92,255,.18),transparent 60%),
    radial-gradient(700px 500px at 5% 10%,rgba(33,212,253,.12),transparent 55%),
    radial-gradient(600px 600px at 50% 120%,rgba(124,92,255,.10),transparent 60%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;opacity:.5;
  background-image:
    radial-gradient(1px 1px at 20% 30%,#fff,transparent),
    radial-gradient(1px 1px at 70% 60%,#cfe,transparent),
    radial-gradient(1px 1px at 40% 80%,#fff,transparent),
    radial-gradient(1px 1px at 90% 20%,#bdf,transparent),
    radial-gradient(1px 1px at 55% 15%,#fff,transparent),
    radial-gradient(1px 1px at 15% 65%,#def,transparent);
  background-repeat:repeat;background-size:600px 600px;
  animation:drift 120s linear infinite;
}
@keyframes drift{from{background-position:0 0}to{background-position:600px 600px}}
a{color:var(--brand-2);text-decoration:none}
a:hover{text-decoration:underline}
code{font-family:"SF Mono",ui-monospace,Menlo,Consolas,monospace;font-size:.88em;
  background:var(--panel-2);border:1px solid var(--border-soft);padding:.1em .45em;border-radius:6px;color:#cfe1ff}
pre{background:#0d1020;border:1px solid var(--border);border-radius:var(--radius-sm);
  padding:16px;overflow:auto;margin:18px 0}
pre code{background:none;border:none;padding:0;color:#bfe3ff}

/* ===================== Top bar ===================== */
.topbar{
  position:sticky;top:0;z-index:50;
  backdrop-filter:saturate(140%) blur(14px);
  background:rgba(10,11,20,.72);
  border-bottom:1px solid var(--border-soft);
}
.topbar-inner{
  max-width:var(--maxw);margin:0 auto;padding:12px 22px;
  display:flex;align-items:center;gap:18px;
}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:19px;letter-spacing:.2px;flex-shrink:0}
.brand .logo{width:34px;height:34px;flex-shrink:0}
.brand b{background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.brand small{display:block;font-size:11px;font-weight:600;color:var(--muted-2);letter-spacing:.18em;text-transform:uppercase}
.search{flex:1;position:relative;max-width:560px;margin:0 auto}
.search input{
  width:100%;padding:11px 16px 11px 42px;border-radius:12px;
  background:var(--panel-solid);border:1px solid var(--border);color:var(--text);
  font-size:15px;outline:none;transition:border-color .2s,box-shadow .2s;
}
.search input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(124,92,255,.18)}
.search .s-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--muted-2)}
.search kbd{position:absolute;right:12px;top:50%;transform:translateY(-50%);
  font-size:11px;color:var(--muted-2);border:1px solid var(--border);border-radius:6px;padding:1px 6px;background:var(--panel-2)}
.top-actions{display:flex;gap:10px;flex-shrink:0}
.btn{
  display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border-radius:11px;
  font-weight:600;font-size:14px;border:1px solid var(--border);background:var(--panel-solid);color:var(--text);
  cursor:pointer;transition:transform .15s,box-shadow .2s,border-color .2s;white-space:nowrap;
}
.btn:hover{text-decoration:none;transform:translateY(-1px);border-color:var(--brand)}
.btn-primary{background:var(--brand-grad);border:none;color:#0a0b14;font-weight:700}
.btn-primary:hover{box-shadow:0 10px 30px -8px rgba(124,92,255,.6)}
.btn-icon{padding:10px;width:42px;justify-content:center}
.btn-icon svg{width:18px;height:18px}
.theme-toggle .sun{display:none}
.theme-toggle .moon{display:block}
[data-theme="light"] .theme-toggle .sun{display:block}
[data-theme="light"] .theme-toggle .moon{display:none}

/* ===================== Search dropdown ===================== */
.search-results{
  position:absolute;top:calc(100% + 8px);left:0;right:0;
  background:var(--panel-solid);border:1px solid var(--border);border-radius:14px;
  box-shadow:var(--shadow);overflow:hidden;max-height:60vh;overflow-y:auto;display:none;z-index:60;
}
.search-results.show{display:block}
.sr-item{display:block;padding:12px 16px;border-bottom:1px solid var(--border-soft);color:var(--text)}
.sr-item:last-child{border-bottom:none}
.sr-item:hover,.sr-item.active{background:var(--panel-2);text-decoration:none}
.sr-item .t{font-weight:600}
.sr-item .d{font-size:13px;color:var(--muted);margin-top:2px}
.sr-item .c{font-size:11px;color:var(--brand-2);text-transform:uppercase;letter-spacing:.08em}
.sr-empty{padding:20px;text-align:center;color:var(--muted)}
.hl{background:rgba(124,92,255,.35);border-radius:3px;padding:0 1px}

/* ===================== Layout ===================== */
.layout{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:var(--sb) 1fr;gap:34px;padding:28px 22px 80px}
.sidebar{position:sticky;top:84px;align-self:start;height:calc(100vh - 110px);overflow-y:auto;padding-right:6px}
.sidebar::-webkit-scrollbar,.search-results::-webkit-scrollbar{width:8px}
.sidebar::-webkit-scrollbar-thumb,.search-results::-webkit-scrollbar-thumb{background:var(--border);border-radius:8px}
.nav-group{margin-bottom:6px}
.nav-cat{
  display:flex;align-items:center;gap:11px;width:100%;text-align:left;cursor:pointer;
  padding:10px 12px;border-radius:11px;background:none;border:none;color:var(--text);font-size:14.5px;font-weight:600;font-family:inherit;
  transition:background .15s;
}
.nav-cat:hover{background:var(--panel)}
.nav-cat .ico{width:22px;height:22px;color:var(--muted);flex-shrink:0}
.nav-cat.active{color:#fff}
.nav-cat.active .ico{color:var(--brand-2)}
.nav-cat .chev{margin-left:auto;width:16px;height:16px;flex-shrink:0;color:var(--muted-2);transition:transform .2s}
.nav-cat[aria-expanded="true"] .chev{transform:rotate(90deg)}
.nav-sub{list-style:none;margin:2px 0 8px;padding:0 0 0 44px;display:none}
.nav-sub.open{display:block}
.nav-sub a{display:block;padding:6px 10px;border-radius:8px;color:var(--muted);font-size:13.5px;border-left:2px solid transparent}
.nav-sub a:hover{color:var(--text);background:var(--panel);text-decoration:none}
.nav-sub a.active{color:#fff;border-left-color:var(--brand);background:var(--panel)}

/* ===================== Content ===================== */
.content{min-width:0}
.crumbs{font-size:13px;color:var(--muted-2);margin-bottom:18px;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.crumbs a{color:var(--muted)}
.crumbs span{color:var(--muted-2)}

/* hero (home) */
.hero{
  position:relative;border:1px solid var(--border);border-radius:20px;overflow:hidden;
  padding:34px 40px;margin-bottom:32px;
  background:
    radial-gradient(600px 300px at 90% -20%,rgba(124,92,255,.30),transparent 60%),
    radial-gradient(500px 300px at 0% 120%,rgba(33,212,253,.18),transparent 60%),
    var(--panel-solid);
}
.hero h1{font-size:34px;line-height:1.12;margin:0 0 10px;letter-spacing:-.5px}
.hero h1 b{background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{font-size:16px;color:var(--muted);max-width:580px;margin:0 0 20px}
.hero .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero .orbit-deco{position:absolute;right:-40px;top:50%;transform:translateY(-50%);width:240px;height:240px;opacity:.45;pointer-events:none}

/* category cards grid */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px;margin-bottom:46px}
.card{
  display:block;padding:22px;border-radius:var(--radius);border:1px solid var(--border);
  background:var(--panel-solid);transition:transform .18s,border-color .2s,box-shadow .2s;position:relative;overflow:hidden;
}
.card::before{content:"";position:absolute;inset:0;background:var(--brand-grad);opacity:0;transition:opacity .2s}
.card:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:var(--shadow);text-decoration:none}
.card .card-ico{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:rgba(124,92,255,.14);color:var(--brand-2);margin-bottom:14px}
.card h3{margin:0 0 6px;font-size:17px;color:var(--text)}
.card p{margin:0;color:var(--muted);font-size:14px}
.card .count{position:absolute;top:18px;right:18px;font-size:12px;color:var(--muted-2);
  border:1px solid var(--border);border-radius:20px;padding:2px 10px}

.section-title{font-size:15px;text-transform:uppercase;letter-spacing:.12em;color:var(--muted-2);margin:0 0 18px}

/* popular list */
.popular{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:12px}
.pop-item{display:flex;gap:12px;align-items:center;padding:14px 16px;border-radius:12px;
  border:1px solid var(--border-soft);background:var(--panel-solid);color:var(--text);transition:border-color .2s,transform .15s}
.pop-item:hover{border-color:var(--brand);transform:translateX(3px);text-decoration:none}
.pop-item .pop-ico{color:var(--brand-2);flex-shrink:0}
.pop-item b{display:block;font-size:14.5px}
.pop-item small{color:var(--muted);font-size:12.5px}

/* article */
.article{max-width:820px}
.article h1{font-size:34px;line-height:1.15;margin:0 0 10px;letter-spacing:-.3px}
.article .lead{font-size:18px;color:var(--muted);margin:0 0 28px}
.article h3{font-size:21px;margin:34px 0 12px}
.article p{margin:14px 0}
.article ul,.article ol{margin:14px 0;padding-left:24px}
.article li{margin:7px 0}
.article .tags{display:flex;gap:8px;flex-wrap:wrap;margin:30px 0 0;padding-top:24px;border-top:1px solid var(--border-soft)}
.tag{font-size:12.5px;color:var(--muted);background:var(--panel-2);border:1px solid var(--border-soft);
  border-radius:20px;padding:4px 12px}

/* callouts */
.callout{border-radius:12px;padding:14px 16px 14px 18px;margin:20px 0;border:1px solid var(--border);
  background:var(--panel-solid);position:relative;padding-left:46px}
.callout::before{position:absolute;left:16px;top:14px;font-size:16px}
.callout-info{border-color:rgba(84,160,255,.4);background:rgba(84,160,255,.08)}
.callout-info::before{content:"💡"}
.callout-warn{border-color:rgba(255,180,84,.4);background:rgba(255,180,84,.08)}
.callout-warn::before{content:"⚠️"}

/* steps */
.steps{display:flex;flex-direction:column;gap:14px;margin:22px 0}
.step{display:flex;gap:16px;padding:16px 18px;border-radius:14px;border:1px solid var(--border);background:var(--panel-solid)}
.step .num{flex-shrink:0;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;
  background:var(--brand-grad);color:#0a0b14;font-weight:800;font-size:15px}
.step > div > b{display:block;margin-bottom:2px}
.step p{margin:0;color:var(--muted);font-size:14.5px}
.step p b{display:inline;margin:0}

/* feature grid in articles */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:18px 0}
.feature{padding:14px 16px;border-radius:12px;border:1px solid var(--border);background:var(--panel-solid)}
.feature b{display:block;margin-bottom:4px}
.feature span{color:var(--muted);font-size:14px}

/* app download cards */
.app-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px;margin:22px 0}
.app-card{display:flex;gap:16px;padding:18px;border-radius:16px;border:1px solid var(--border);
  background:var(--panel-solid);transition:border-color .2s,transform .15s}
.app-card:hover{border-color:var(--brand);transform:translateY(-2px)}
.app-card-ico{width:56px;height:56px;border-radius:14px;flex-shrink:0;
  box-shadow:0 6px 18px -6px rgba(0,0,0,.5);background:var(--panel-2)}
.app-card-main{min-width:0}
.app-card-name{font-weight:700;font-size:17px;color:var(--text)}
.app-card-sub{font-size:12.5px;color:var(--muted);margin:2px 0 11px}
.store-btns{display:flex;gap:8px;flex-wrap:wrap}
.store-btn{display:inline-flex;align-items:center;gap:7px;padding:7px 13px;border-radius:10px;
  font-size:13px;font-weight:600;border:1px solid var(--border);background:var(--panel-2);color:var(--text);
  transition:transform .15s,border-color .2s,background .2s}
.store-btn:hover{text-decoration:none;transform:translateY(-1px);border-color:var(--brand)}
.store-btn svg{width:16px;height:16px;flex-shrink:0}
.store-appstore{background:#0a0b14;color:#fff;border-color:#2a2f4a}
[data-theme="light"] .store-appstore{background:#111;color:#fff;border-color:#111}
.store-googleplay svg{color:#34a853}
.store-web svg,.store-github svg{color:var(--brand-2)}

/* copy button in <pre> */
pre.has-copy{position:relative}
.copy-btn{position:absolute;top:8px;right:8px;padding:5px 11px;border-radius:8px;cursor:pointer;
  font-size:12px;font-weight:600;font-family:inherit;border:1px solid var(--border);
  background:var(--panel-2);color:var(--muted);transition:all .15s;opacity:.85}
.copy-btn:hover{opacity:1;border-color:var(--brand);color:var(--text)}
.copy-btn.copied{color:var(--ok);border-color:var(--ok)}

/* troubleshooter wizard */
.ts{border:1px solid var(--border);border-radius:16px;padding:22px;background:var(--panel-solid);margin:22px 0}
.ts-q{font-size:18px;font-weight:700;margin-bottom:16px}
.ts-options{display:flex;flex-direction:column;gap:10px}
.ts-opt{text-align:left;padding:14px 16px;border-radius:12px;border:1px solid var(--border);
  background:var(--panel-2);color:var(--text);font-size:15px;font-weight:600;font-family:inherit;cursor:pointer;
  transition:all .15s;display:flex;align-items:center;gap:10px}
.ts-opt::before{content:"→";color:var(--brand-2);font-weight:800}
.ts-opt:hover{border-color:var(--brand);transform:translateX(3px)}
.ts-solution .ts-title{font-size:18px;font-weight:700;margin-bottom:12px}
.ts-steps{margin:0 0 18px;padding-left:22px}
.ts-steps li{margin:8px 0;color:var(--muted)}
.ts-actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.ts-back,.ts-restart{padding:10px 16px;border-radius:11px;border:1px solid var(--border);
  background:var(--panel-2);color:var(--muted);font-size:14px;font-weight:600;font-family:inherit;cursor:pointer;transition:all .15s}
.ts-back:hover,.ts-restart:hover{color:var(--text);border-color:var(--brand)}

/* pricing widget */
.pricing{margin:24px 0}
.rate-bar{display:flex;align-items:center;gap:9px;font-size:13.5px;color:var(--muted);
  padding:11px 15px;border-radius:12px;border:1px solid var(--border);background:var(--panel-solid);margin-bottom:18px}
.rate-bar b{color:var(--text)}
.rate-dot{width:9px;height:9px;border-radius:50%;background:var(--muted-2);flex-shrink:0}
.rate-dot.rate-live{background:var(--ok);box-shadow:0 0 0 3px rgba(61,220,151,.18);animation:pulse 2s infinite}
.rate-dot.rate-off{background:var(--warn)}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.dev-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.dev-tab{padding:9px 16px;border-radius:11px;border:1px solid var(--border);background:var(--panel-solid);
  color:var(--muted);font-weight:600;font-size:14px;font-family:inherit;cursor:pointer;transition:all .15s}
.dev-tab:hover{color:var(--text);border-color:var(--brand)}
.dev-tab.active{background:var(--brand-grad);border-color:transparent;color:#0a0b14}
.dev-caption{font-size:14px;color:var(--muted-2);text-transform:uppercase;letter-spacing:.08em;margin:6px 0 14px}
.plan-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:14px}
.plan-card{position:relative;padding:20px 18px;border-radius:16px;border:1px solid var(--border);
  background:var(--panel-solid);text-align:center;transition:transform .15s,border-color .2s,box-shadow .2s}
.plan-card:hover{transform:translateY(-3px);border-color:var(--brand);box-shadow:var(--shadow)}
.plan-badge{position:absolute;top:-9px;left:50%;transform:translateX(-50%);font-size:11px;font-weight:700;
  text-transform:uppercase;letter-spacing:.05em;padding:3px 11px;border-radius:20px;background:var(--brand-grad);color:#0a0b14}
.plan-dur{font-size:14px;color:var(--muted);font-weight:600}
.plan-rub{font-size:30px;font-weight:800;color:var(--text);margin:6px 0 2px;letter-spacing:-.5px}
.plan-rub span{font-size:18px;font-weight:600;color:var(--muted)}
.plan-permonth{font-size:12.5px;color:var(--muted-2);margin-bottom:13px}
.plan-conv{display:flex;flex-direction:column;gap:5px;font-size:13.5px;color:var(--muted);
  padding:11px 0;margin-bottom:14px;border-top:1px solid var(--border-soft);border-bottom:1px solid var(--border-soft)}
.plan-conv span{display:block}
.plan-conv-load{opacity:.5}
.plan-buy{width:100%;justify-content:center;padding:10px}
.pricing-note{font-size:12.5px;color:var(--muted-2);margin-top:16px}
@media(max-width:560px){.plan-grid{grid-template-columns:1fr 1fr}.plan-rub{font-size:24px}}

/* tables */
.article table,.content table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14.5px;
  border:1px solid var(--border);border-radius:12px;overflow:hidden}
th,td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--border-soft)}
th{background:var(--panel-2);font-weight:700;color:var(--text)}
tr:last-child td{border-bottom:none}
td{color:var(--muted)}
td b,td:first-child{color:var(--text)}

/* article footer nav */
.article-nav{display:flex;justify-content:space-between;gap:14px;margin-top:42px;flex-wrap:wrap}
.article-nav a{flex:1;min-width:200px;padding:16px 18px;border-radius:14px;border:1px solid var(--border);
  background:var(--panel-solid);transition:border-color .2s,transform .15s}
.article-nav a:hover{border-color:var(--brand);transform:translateY(-2px);text-decoration:none}
.article-nav small{display:block;color:var(--muted-2);font-size:12px;margin-bottom:3px}
.article-nav b{color:var(--text)}
.article-nav .next{text-align:right}

/* help box */
.help-box{margin-top:48px;padding:28px;border-radius:18px;border:1px solid var(--border);
  background:radial-gradient(500px 200px at 100% 0%,rgba(124,92,255,.18),transparent),var(--panel-solid);
  display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.help-box .ht{flex:1;min-width:240px}
.help-box h3{margin:0 0 6px;font-size:19px}
.help-box p{margin:0;color:var(--muted)}

/* category page list */
.cat-list{display:flex;flex-direction:column;gap:10px}
.cat-row{display:flex;gap:14px;align-items:center;padding:16px 18px;border-radius:14px;
  border:1px solid var(--border-soft);background:var(--panel-solid);color:var(--text);transition:border-color .2s,transform .15s}
.cat-row:hover{border-color:var(--brand);transform:translateX(4px);text-decoration:none}
.cat-row .arr{margin-left:auto;color:var(--muted-2)}
.cat-row b{font-size:15.5px}
.cat-row small{color:var(--muted);display:block;font-size:13px}

/* footer */
.footer{border-top:1px solid var(--border-soft);margin-top:40px}
.footer-inner{max-width:var(--maxw);margin:0 auto;padding:34px 22px;display:flex;justify-content:space-between;
  gap:24px;flex-wrap:wrap;color:var(--muted-2);font-size:13.5px}
.footer-inner a{color:var(--muted)}
.footer .fcol b{color:var(--text);display:block;margin-bottom:8px}
.footer .fcol a{display:block;margin:4px 0}

/* mobile */
.menu-toggle{display:none;padding:10px;width:42px;justify-content:center}
.menu-toggle svg{width:24px;height:24px}
.sidebar-close{display:none}
@media(max-width:980px){
  .layout{grid-template-columns:1fr;gap:0}
  .sidebar{position:fixed;inset:0 auto 0 0;top:0;height:100vh;width:300px;z-index:80;
    background:var(--panel-solid);border-right:1px solid var(--border);padding:64px 16px 20px;
    transform:translateX(-105%);transition:transform .25s}
  .sidebar.open{transform:none}
  .menu-toggle{display:inline-flex}
  .sidebar-close{display:inline-flex;align-items:center;justify-content:center;
    position:absolute;top:12px;right:12px;width:38px;height:38px;border-radius:10px;
    background:var(--panel-2);border:1px solid var(--border);color:var(--text);
    cursor:pointer;font-size:18px;line-height:1;z-index:2}
  .sidebar-close:hover{border-color:var(--brand);color:var(--brand)}
  .sidebar-close svg{width:20px;height:20px}
  .scrim{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:70;display:none}
  .scrim.show{display:block}
  .search{order:3;flex-basis:100%;max-width:none}
  .topbar-inner{flex-wrap:wrap}
  .hero h1{font-size:30px}.hero{padding:36px 24px}
  .hero .orbit-deco{display:none}
  .top-actions .btn span{display:none}
}
@media(max-width:560px){
  .grid-2{grid-template-columns:1fr}
  .article h1{font-size:26px}
}

/* ===================== Reading progress bar ===================== */
.read-progress{
  position:fixed;top:0;left:0;right:0;height:3px;z-index:100;
  transform:scaleX(0);transform-origin:0 50%;
  background:var(--brand-grad);
  box-shadow:0 0 12px rgba(124,92,255,.6);
  transition:transform .08s linear;will-change:transform;pointer-events:none;
}

/* ===================== Announcement banner ===================== */
.announce{display:none}
.announce.show{display:block;
  background:linear-gradient(90deg,rgba(124,92,255,.18),rgba(33,212,253,.18));
  border-bottom:1px solid var(--border-soft);
}
.announce-in{
  max-width:var(--maxw);margin:0 auto;padding:9px 22px;
  display:flex;align-items:center;gap:14px;font-size:14px;font-weight:500;color:var(--text);
}
.announce-text{flex:1;text-align:center}
.announce-text a{font-weight:700;white-space:nowrap}
.announce-x{
  flex-shrink:0;width:26px;height:26px;border-radius:8px;border:1px solid var(--border);
  background:transparent;color:var(--muted);cursor:pointer;font-size:13px;line-height:1;
  transition:background .15s,color .15s,border-color .15s;
}
.announce-x:hover{background:var(--panel-2);color:var(--text);border-color:var(--brand)}

/* ===================== Back to top ===================== */
.to-top{
  position:fixed;right:22px;bottom:22px;z-index:60;
  width:46px;height:46px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-grad);color:#0a0b14;border:none;cursor:pointer;
  box-shadow:0 12px 30px -8px rgba(124,92,255,.6);
  opacity:0;visibility:hidden;transform:translateY(14px) scale(.9);
  transition:opacity .25s,transform .25s,visibility .25s;
}
.to-top svg{width:22px;height:22px}
.to-top:hover{transform:translateY(0) scale(1.06)}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0) scale(1)}

/* ===================== Tariff calculator ===================== */
.calc{
  background:var(--panel-solid);border:1px solid var(--border);border-radius:var(--radius);
  padding:22px;display:flex;flex-direction:column;gap:18px;box-shadow:var(--shadow);
}
.calc-row{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.calc-label{font-weight:700;font-size:13px;color:var(--muted);min-width:80px;text-transform:uppercase;letter-spacing:.06em}
.calc-opts{display:flex;flex-wrap:wrap;gap:8px;flex:1}
.calc-opt{
  min-width:42px;padding:9px 14px;border-radius:10px;cursor:pointer;font-weight:700;font-size:14px;
  background:var(--panel-2);border:1px solid var(--border);color:var(--text);
  transition:transform .14s,border-color .2s,background .2s,color .2s;
}
.calc-opt:hover{transform:translateY(-1px);border-color:var(--brand)}
.calc-opt.active{background:var(--brand-grad);border-color:transparent;color:#0a0b14}
.calc-result{
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  background:var(--panel-2);border:1px solid var(--border-soft);border-radius:var(--radius-sm);padding:18px 20px;
}
.calc-for{font-size:13px;color:var(--muted);font-weight:600;margin-bottom:4px}
.calc-price{font-size:34px;font-weight:800;line-height:1}
.calc-price span{font-size:20px;color:var(--muted)}
.calc-permonth{font-size:13px;color:var(--muted-2);margin-top:4px}
.calc-conv{display:flex;gap:14px;flex-wrap:wrap;margin-top:8px;font-size:14px;font-weight:600;color:var(--brand-2)}
.calc-conv-load{margin-top:8px;color:var(--muted-2);font-size:14px}
.calc-buy{flex-shrink:0}
.calc-rate{font-size:12.5px;color:var(--muted-2);display:flex;align-items:center;gap:8px}

/* ===================== Accordion ===================== */
.accordion{display:flex;flex-direction:column;gap:10px;margin:18px 0}
.acc-item{
  border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden;
  background:var(--panel-solid);transition:border-color .2s;
}
.acc-item:hover{border-color:var(--brand)}
.acc-item.open{border-color:var(--brand)}
.acc-q{
  display:flex;align-items:center;gap:12px;padding:15px 18px;cursor:pointer;
  font-weight:700;font-size:15.5px;color:var(--text);user-select:none;list-style:none;
}
.acc-q:focus-visible{outline:2px solid var(--brand);outline-offset:-2px}
.acc-chev{margin-left:auto;color:var(--muted);transition:transform .3s ease;display:flex}
.acc-chev svg{width:18px;height:18px}
.acc-item.open .acc-chev{transform:rotate(90deg);color:var(--brand)}
.acc-wrap{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s ease}
.acc-item.open .acc-wrap{grid-template-rows:1fr}
.acc-a{overflow:hidden;min-height:0}
.acc-a > *{margin:0}
.acc-a{padding:0 18px}
.acc-item.open .acc-a{padding:0 18px 16px}
.acc-a p{color:var(--muted);line-height:1.6}

/* ===================== Glossary tooltips ===================== */
.gl{
  border-bottom:1.5px dashed var(--brand);cursor:help;position:relative;
  color:inherit;font-weight:600;white-space:nowrap;
}
.gl::after{
  content:attr(data-tip);
  position:absolute;left:50%;bottom:calc(100% + 10px);transform:translateX(-50%) translateY(6px);
  width:max-content;max-width:280px;white-space:normal;
  background:var(--panel-solid);color:var(--text);border:1px solid var(--border);
  border-radius:10px;padding:10px 13px;font-size:13px;font-weight:500;line-height:1.5;text-align:left;
  box-shadow:var(--shadow);opacity:0;visibility:hidden;transition:opacity .18s,transform .18s;
  z-index:40;pointer-events:none;
}
.gl::before{
  content:"";position:absolute;left:50%;bottom:calc(100% + 4px);transform:translateX(-50%) translateY(6px);
  border:6px solid transparent;border-top-color:var(--border);
  opacity:0;visibility:hidden;transition:opacity .18s,transform .18s;z-index:41;pointer-events:none;
}
.gl:hover::after,.gl:focus::after,.gl.show::after,
.gl:hover::before,.gl:focus::before,.gl.show::before{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}

/* ===================== Table of contents ===================== */
.toc{
  background:var(--panel-2);border:1px solid var(--border-soft);border-radius:var(--radius-sm);
  padding:14px 18px;margin:0 0 22px;
}
.toc-h{display:flex;align-items:center;gap:8px;font-weight:700;font-size:13px;
  text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin-bottom:8px}
.toc-ico{width:15px;height:15px}
.toc ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.toc li.toc-h3{padding-left:14px}
.toc a{
  display:block;padding:5px 10px;border-radius:8px;border-left:2px solid transparent;
  color:var(--muted);font-size:14px;font-weight:500;transition:color .15s,background .15s,border-color .15s;
}
.toc a:hover{color:var(--text);background:var(--panel-solid);text-decoration:none}
.toc a.active{color:var(--brand-2);border-left-color:var(--brand);background:var(--panel-solid);font-weight:700}

/* ===================== Reveal on scroll ===================== */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .55s ease,transform .55s ease;will-change:opacity,transform}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1!important;transform:none!important;transition:none!important}
  .read-progress,.acc-wrap,.acc-chev,.to-top{transition:none!important}
  html{scroll-behavior:auto!important}
}

/* ===================== Light theme tweaks ===================== */
[data-theme="light"] .calc-opt.active,
[data-theme="light"] .to-top{color:#fff}
[data-theme="light"] .announce.show{background:linear-gradient(90deg,rgba(124,92,255,.12),rgba(33,212,253,.12))}
[data-theme="light"] .read-progress{box-shadow:0 0 10px rgba(124,92,255,.4)}

/* ===================== Mobile: calculator/announce ===================== */
@media(max-width:560px){
  .calc{padding:16px}
  .calc-result{flex-direction:column;align-items:flex-start}
  .calc-buy{width:100%;justify-content:center}
  .announce-in{padding:9px 16px;gap:8px;font-size:13px}
  .to-top{right:14px;bottom:14px;width:42px;height:42px}
}

/* ===================== Hero particle canvas ===================== */
.hero{position:relative;overflow:hidden}
.hero-canvas{position:absolute;inset:0;width:100%;height:100%;z-index:0;pointer-events:none}
.hero .hero-status,.hero h1,.hero p,.hero .hero-actions{position:relative;z-index:1}

/* ===================== Hero status pill ===================== */
.hero-status{display:inline-flex;margin-bottom:14px}
.st-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 13px;border-radius:999px;font-size:13px;font-weight:600;
  background:var(--panel-2);border:1px solid var(--border);color:var(--text);
}
.st-dot{width:9px;height:9px;border-radius:50%;flex-shrink:0;position:relative}
.st-ok{background:var(--ok);box-shadow:0 0 0 0 rgba(61,220,151,.5);animation:stpulse 2.4s infinite}
.st-warn{background:var(--warn)}
.st-off{background:#ff5d6c}
@keyframes stpulse{0%{box-shadow:0 0 0 0 rgba(61,220,151,.5)}70%{box-shadow:0 0 0 7px rgba(61,220,151,0)}100%{box-shadow:0 0 0 0 rgba(61,220,151,0)}}
.footer-status{display:inline-flex;margin-top:12px}

/* ===================== Status card ===================== */
.st-card{background:var(--panel-solid);border:1px solid var(--border);border-radius:var(--radius);padding:20px 22px;box-shadow:var(--shadow)}
.st-card.st-ok{border-color:rgba(61,220,151,.4)}
.st-card.st-warn{border-color:rgba(255,180,84,.45)}
.st-card.st-off{border-color:rgba(255,93,108,.45)}
.st-head{margin-bottom:6px}
.st-badge{display:inline-flex;align-items:center;gap:8px;font-size:17px;font-weight:800}
.st-list{display:flex;flex-direction:column;margin-top:10px}
.st-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 2px;border-top:1px solid var(--border-soft)}
.st-name{color:var(--text);font-weight:500}
.st-state{display:inline-flex;align-items:center;gap:8px;color:var(--muted);font-size:14px;font-weight:600;flex-shrink:0}

/* ===================== Device auto-detect CTA ===================== */
.device-cta{
  display:flex;align-items:center;gap:16px;margin:0 0 8px;padding:16px 20px;
  border-radius:var(--radius);border:1px solid var(--border);
  background:linear-gradient(135deg,rgba(124,92,255,.14),rgba(33,212,253,.10));
  transition:transform .15s,border-color .2s,box-shadow .2s;
}
.device-cta:hover{transform:translateY(-2px);border-color:var(--brand);text-decoration:none;box-shadow:0 16px 40px -18px rgba(124,92,255,.6)}
.device-emoji{font-size:30px;line-height:1;flex-shrink:0}
.device-text{display:flex;flex-direction:column;gap:2px;flex:1}
.device-text b{font-size:16px;color:var(--text)}
.device-text small{color:var(--muted);font-size:13.5px}
.device-arr{color:var(--brand-2);flex-shrink:0;display:flex}
.device-arr svg{width:22px;height:22px}

/* ===================== Command palette (⌘K) ===================== */
.cmdk{
  position:fixed;inset:0;z-index:200;display:none;
  background:rgba(6,7,15,.6);backdrop-filter:blur(4px);
  padding-top:12vh;justify-content:center;align-items:flex-start;
}
.cmdk.show{display:flex;animation:cmdkfade .15s ease}
@keyframes cmdkfade{from{opacity:0}to{opacity:1}}
.cmdk-box{
  width:min(640px,92vw);max-height:72vh;display:flex;flex-direction:column;
  background:var(--panel-solid);border:1px solid var(--border);border-radius:16px;
  box-shadow:0 30px 80px -20px rgba(0,0,0,.7);overflow:hidden;
  animation:cmdkpop .18s cubic-bezier(.2,.9,.3,1.2);
}
@keyframes cmdkpop{from{transform:translateY(-10px) scale(.98);opacity:.6}to{transform:none;opacity:1}}
.cmdk-input{display:flex;align-items:center;gap:12px;padding:16px 18px;border-bottom:1px solid var(--border-soft)}
.cmdk-ico{color:var(--muted-2);display:flex}.cmdk-ico svg{width:20px;height:20px}
.cmdk-input input{flex:1;background:none;border:none;outline:none;color:var(--text);font-size:17px}
.cmdk-input kbd{font-size:11px;color:var(--muted-2);border:1px solid var(--border);border-radius:6px;padding:2px 7px;background:var(--panel-2)}
.cmdk-list{overflow-y:auto;padding:8px}
.cmdk-item{display:flex;align-items:center;gap:13px;padding:11px 13px;border-radius:11px;cursor:pointer}
.cmdk-item:hover{text-decoration:none}
.cmdk-item.active{background:var(--panel-2)}
.cmdk-item-ico{width:34px;height:34px;border-radius:9px;background:var(--panel-2);display:flex;align-items:center;justify-content:center;color:var(--brand-2);flex-shrink:0}
.cmdk-item.active .cmdk-item-ico{background:var(--brand-grad);color:#0a0b14}
.cmdk-item-ico svg{width:18px;height:18px}
.cmdk-item-txt{display:flex;flex-direction:column;gap:1px;flex:1;min-width:0}
.cmdk-item-txt b{color:var(--text);font-size:15px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cmdk-item-txt small{color:var(--muted-2);font-size:12.5px}
.cmdk-item-txt .hl{color:var(--brand-2);font-weight:800;background:none}
.cmdk-enter{color:var(--muted-2);font-size:14px;opacity:0;flex-shrink:0}
.cmdk-item.active .cmdk-enter{opacity:1;color:var(--brand-2)}
.cmdk-empty{padding:28px 18px;text-align:center;color:var(--muted)}
.cmdk-foot{display:flex;gap:18px;padding:11px 18px;border-top:1px solid var(--border-soft);font-size:12px;color:var(--muted-2)}
.cmdk-foot kbd{font-size:10.5px;border:1px solid var(--border);border-radius:5px;padding:1px 5px;background:var(--panel-2);margin-right:3px}

/* light theme tweaks for new blocks */
[data-theme="light"] .cmdk{background:rgba(120,130,170,.35)}
[data-theme="light"] .st-pill{background:#fff}
[data-theme="light"] .cmdk-item.active .cmdk-item-ico{color:#fff}

@media(max-width:560px){
  .device-cta{padding:14px 16px;gap:12px}
  .device-emoji{font-size:26px}
  .cmdk{padding-top:8vh}
  .cmdk-foot{display:none}
}