:root{
  --bg:#0b1220;
  --card:#0f172a;
  --muted:#94a3b8;
  --text:#e5e7eb;
  --line:rgba(148,163,184,.18);
  --brand:#0ea5e9;
  --brand2:#22c55e;
  --white:#fff;
  --shadow: 0 18px 45px rgba(0,0,0,.35);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", "Apple Color Emoji","Segoe UI Emoji";
  background: radial-gradient(1200px 700px at 70% -10%, rgba(14,165,233,.20), transparent 60%),
              radial-gradient(900px 700px at 10% 0%, rgba(34,197,94,.12), transparent 60%),
              var(--bg);
  color:var(--text);
}
a{color:inherit;text-decoration:none}
.container{max-width:1100px;margin:0 auto;padding:18px}
.muted{color:var(--muted)}
.small{font-size:13px}
.mono{font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace}
.gap{gap:16px}
.gap-top{margin-top:12px}
.sep{height:1px;background:var(--line);margin:14px 0}
.topbar{position:sticky;top:0;z-index:50;background:rgba(11,18,32,.75);backdrop-filter: blur(10px);border-bottom:1px solid var(--line)}
.topbar-inner{display:flex;align-items:center;gap:18px;justify-content:space-between}
.brand{display:flex;align-items:center;gap:10px}
.brand-dot{width:12px;height:12px;border-radius:99px;background:linear-gradient(135deg,var(--brand),var(--brand2))}
.brand-name{font-weight:800;letter-spacing:.2px}
.brand-sub{font-size:12px;color:var(--muted);border:1px solid var(--line);padding:3px 8px;border-radius:999px}
.nav{display:flex;gap:12px;flex-wrap:wrap}
.nav a{padding:8px 10px;border-radius:10px;color:var(--muted)}
.nav a:hover{background:rgba(148,163,184,.10);color:var(--text)}
.nav a.active{background:rgba(14,165,233,.15);color:var(--text);border:1px solid rgba(14,165,233,.25)}
.actions{display:flex;align-items:center;gap:10px}
.lang{display:flex;gap:6px;border:1px solid var(--line);border-radius:999px;padding:4px}
.lang a{padding:6px 10px;border-radius:999px;color:var(--muted);font-weight:700;font-size:12px}
.lang a.on{background:rgba(255,255,255,.06);color:var(--text)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 14px;border-radius:12px;
  border:1px solid rgba(14,165,233,.35);
  background:linear-gradient(135deg, rgba(14,165,233,.25), rgba(34,197,94,.10));
  color:var(--text);cursor:pointer;font-weight:800;
}
.btn:hover{filter:brightness(1.07)}
.btn.ghost{
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  font-weight:700;
}
.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:18px;align-items:stretch;margin-top:10px}
.hero h1{font-size:38px;line-height:1.1;margin:6px 0 12px}
.lead{font-size:16px;max-width:54ch}
.hero-cta{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.chip{border:1px solid var(--line);padding:6px 10px;border-radius:999px;color:var(--muted);font-size:12px}
.card{background:rgba(15,23,42,.75);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}
.card.p{padding:16px}
.card-head{padding:12px 12px 0}
.card-body{padding:12px}
.card-foot{padding:0 12px 12px}
.tabs{display:flex;gap:8px}
.tab{flex:1;border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--muted);padding:10px;border-radius:12px;font-weight:800;cursor:pointer}
.tab.on{background:rgba(14,165,233,.15);color:var(--text);border-color:rgba(14,165,233,.25)}
.tabpane{display:none}
.tabpane.on{display:block}
.form{display:grid;gap:10px}
.label{font-size:13px;color:var(--muted);font-weight:800}
.input{width:100%;padding:11px 12px;border-radius:12px;border:1px solid var(--line);background:rgba(0,0,0,.18);color:var(--text);outline:none}
.input:focus{border-color:rgba(14,165,233,.35);box-shadow:0 0 0 4px rgba(14,165,233,.12)}
textarea.input{resize:vertical}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.grid3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px}
.row{display:flex;align-items:center;justify-content:space-between;gap:10px}
.switch{position:relative;display:inline-flex;align-items:center}
.switch input{display:none}
.switch span{width:46px;height:26px;border-radius:999px;background:rgba(148,163,184,.25);display:inline-block;position:relative;border:1px solid var(--line)}
.switch span:after{content:"";width:20px;height:20px;border-radius:99px;background:#fff;position:absolute;top:2px;left:2px;transition:.18s}
.switch input:checked + span{background:rgba(34,197,94,.35)}
.switch input:checked + span:after{left:22px}
.hidden{display:none !important}
.adv summary{cursor:pointer;color:var(--muted);font-weight:900}
.adv{border:1px solid var(--line);border-radius:12px;padding:10px;background:rgba(255,255,255,.03)}
.result{margin-top:12px;border-top:1px solid var(--line);padding-top:12px;display:none}
.result.on{display:block}
.preview{display:flex;align-items:center;justify-content:center;border:1px dashed var(--line);border-radius:16px;padding:12px;background:rgba(0,0,0,.15)}
.preview img{max-width:100%;height:auto;border-radius:14px;background:#fff;padding:6px}
.preview.wide img{width:100%;max-width:520px}
.preview.big{min-height:320px}
.dl{display:flex;gap:10px;flex-wrap:wrap;margin-top:10px}
.hint{font-size:12px;margin-top:2px}
.section{margin:22px 0}
.section h2{margin:0 0 12px}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.uc{border:1px solid var(--line);border-radius:16px;padding:14px;background:rgba(255,255,255,.03)}
.uc-ico{font-size:22px}
.uc-title{font-weight:900;margin-top:6px}
.faq details{border:1px solid var(--line);border-radius:14px;padding:12px;background:rgba(255,255,255,.03);margin-bottom:10px}
.faq summary{cursor:pointer;font-weight:900}
.pagehead{margin:10px 0 14px}
.pagehead h1{margin:0 0 6px}
.h3{margin:0 0 10px}
.scanbox{border:1px solid var(--line);border-radius:16px;overflow:hidden;background:rgba(0,0,0,.18);padding:10px}
.resultbox{border:1px solid var(--line);border-radius:14px;padding:12px;background:rgba(0,0,0,.18);min-height:90px;word-break:break-word}
.adbox{margin:14px 0;border:1px dashed rgba(148,163,184,.25);border-radius:16px;padding:10px;background:rgba(255,255,255,.02)}
.footer{border-top:1px solid var(--line);margin-top:26px;padding:18px 0}
.footer-inner{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;flex-wrap:wrap}
.foot-title{font-weight:900}
.foot-links{display:flex;gap:14px;flex-wrap:wrap}
.foot-links a{color:var(--muted)}
.foot-links a:hover{color:var(--text)}
.foot-bottom{padding-bottom:14px}
.prose p,.prose li{color:var(--muted);line-height:1.75}
.prose h2{margin:16px 0 8px}
.mini{display:flex;align-items:center;justify-content:center;gap:10px;border:1px solid var(--line);border-radius:14px;padding:10px;background:rgba(255,255,255,.03);color:var(--muted);font-weight:800}
.mini:hover{color:var(--text);background:rgba(14,165,233,.10)}
@media (max-width: 980px){
  .hero{grid-template-columns:1fr}
  .cards{grid-template-columns:repeat(2,1fr)}
  .grid3{grid-template-columns:1fr}
}
@media (max-width: 560px){
  .nav{display:none}
  .cards{grid-template-columns:1fr}
  .grid2{grid-template-columns:1fr}
}


/* Language select */
.lang-select{appearance:none;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);color:#eaf6ff;padding:8px 12px;border-radius:12px;font-weight:700;cursor:pointer;}
html[dir='rtl'] .lang-select{direction:rtl;}
.lang-select:focus{outline:none;box-shadow:0 0 0 4px rgba(14,165,233,.25);}