:root{
  --bg:#F4F6FB; --surface:#FFFFFF; --ink:#0E1330; --muted:#5B6280; --line:#E4E8F2;
  --indigo:#2B3BFF; --indigo-2:#5B6BFF; --night:#0B1030; --night-2:#161C4A;
  --mint:#28D9A5; --peach:#FF9E7A; --soft:#EEF0FF;
  --r-lg:28px; --r-md:18px; --r-sm:12px;
  font-family: "Inter","Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
body{background:var(--bg);color:var(--ink);line-height:1.5;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.wrap{max-width:1180px;margin:0 auto;padding:0 28px}
:focus-visible{outline:3px solid var(--indigo-2);outline-offset:3px;border-radius:8px}

/* nav */
nav{display:flex;align-items:center;justify-content:space-between;height:78px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:21px;letter-spacing:-.02em}
.logo i{width:32px;height:32px;border-radius:10px;background:linear-gradient(135deg,var(--indigo),var(--mint));display:grid;place-items:center}
.logo i::after{content:"";width:12px;height:12px;border-radius:50%;background:#fff}
.links{display:flex;gap:34px;font-size:15px;color:var(--muted);font-weight:500}
.links a:hover{color:var(--ink)}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 22px;border-radius:999px;font-weight:600;font-size:15px;border:1px solid transparent;cursor:pointer;transition:transform .15s,box-shadow .15s}
.btn.primary{background:var(--ink);color:#fff}
.btn.primary:hover{transform:translateY(-1px);box-shadow:0 10px 24px -8px rgba(14,19,48,.5)}
.btn.ghost{background:transparent;border-color:var(--line);color:var(--ink);background:#fff}
.btn.blue{background:var(--indigo);color:#fff}

/* hero */
.hero{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center;padding:52px 0 64px}
h1{font-size:clamp(44px,6vw,72px);line-height:1.02;letter-spacing:-.04em;font-weight:800}
.hero p.lead{margin-top:22px;font-size:19px;color:var(--muted);max-width:460px}
.cta{display:flex;gap:12px;margin-top:32px;flex-wrap:wrap}
.trust{display:flex;gap:22px;margin-top:34px;color:var(--muted);font-size:14px;font-weight:500;flex-wrap:wrap}
.trust span{display:flex;align-items:center;gap:8px}
.trust b{width:8px;height:8px;border-radius:50%;background:var(--mint)}

.ipcard{position:relative;background:linear-gradient(160deg,var(--night) 0%,var(--night-2) 100%);color:#fff;border-radius:var(--r-lg);padding:34px;overflow:hidden;box-shadow:0 40px 80px -30px rgba(20,28,120,.55)}
.ipcard svg.globe{position:absolute;right:-90px;top:-90px;width:380px;opacity:.55}
.ipcard>*{position:relative}
.live{display:flex;align-items:center;gap:8px;font-size:13px;color:#B8C0F0}
.live b{width:8px;height:8px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 5px rgba(40,217,165,.2)}
.ip{font-size:clamp(38px,5vw,56px);font-weight:800;letter-spacing:-.03em;margin:14px 0 22px;font-variant-numeric:tabular-nums}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.cell{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.1);border-radius:var(--r-sm);padding:14px 16px}
.cell small{display:block;font-size:12px;color:#9AA4DD}
.cell strong{font-size:16px;font-weight:600}
.cell em{display:block;font-style:normal;font-size:12px;color:#9AA4DD;margin-top:2px}
.copy{margin-top:18px;width:100%;justify-content:center;background:var(--mint);color:#052A1F}

/* connection */
.conn{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:22px 28px;display:grid;grid-template-columns:auto repeat(5,1fr);gap:24px;align-items:center}
.conn h3{font-size:16px;font-weight:700;padding-right:12px}
.conn div small{display:block;font-size:12px;color:var(--muted)}
.conn div b{font-size:15px;font-weight:600;display:flex;align-items:center;gap:8px}
.dot{width:8px;height:8px;border-radius:50%;background:#C3C9DC}
.dot.ok{background:var(--mint)}

/* sections */
section{padding-top:84px}
.head{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:28px;gap:20px}
h2{font-size:32px;letter-spacing:-.03em;font-weight:800}
.head p{color:var(--muted);margin-top:6px}
.head a{color:var(--indigo);font-weight:600;font-size:15px}

.tools{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.tool{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:24px;transition:transform .2s,box-shadow .2s,border-color .2s}
.tool:hover{transform:translateY(-3px);box-shadow:0 20px 40px -24px rgba(43,59,255,.4);border-color:#CDD3FF}
.ico{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;font-size:20px;margin-bottom:18px;background:var(--soft);color:var(--indigo)}
.tool:nth-child(3n) .ico{background:#E5FBF4;color:#0E9F79}
.tool:nth-child(4n) .ico{background:#FFEFE8;color:#E2643A}
.tool h4{font-size:17px;font-weight:700}
.tool p{font-size:14px;color:var(--muted);margin-top:4px}

/* lookup */
.lookup{margin-top:84px;background:linear-gradient(120deg,var(--indigo) 0%,#6A4BFF 60%,#A24BFF 100%);border-radius:36px;padding:64px 32px;text-align:center;color:#fff;position:relative;overflow:hidden}
.lookup::before,.lookup::after{content:"";position:absolute;border-radius:50%;border:1px solid rgba(255,255,255,.18)}
.lookup::before{width:420px;height:420px;left:-140px;top:-200px}
.lookup::after{width:520px;height:520px;right:-180px;bottom:-320px}
.lookup h2{font-size:38px}
.lookup p{color:#DCE0FF;margin-top:8px}
.search{position:relative;max-width:640px;margin:30px auto 0;display:flex;background:#fff;border-radius:999px;padding:8px;box-shadow:0 20px 40px -20px rgba(0,0,0,.4)}
.search input{flex:1;border:0;outline:0;padding:0 22px;font-size:16px;background:transparent;color:var(--ink);min-width:0}
.search .btn{background:var(--ink);color:#fff}
.ex{position:relative;margin-top:22px;display:flex;justify-content:center;gap:10px;flex-wrap:wrap;font-size:14px;color:#DCE0FF;align-items:center}
.ex span.chip{background:rgba(255,255,255,.16);padding:6px 14px;border-radius:999px;color:#fff;font-weight:500}

/* categories */
.cats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.cat{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:28px}
.cat h4{display:flex;align-items:center;gap:12px;font-size:18px;margin-bottom:18px}
.cat h4 .ico{margin:0;width:40px;height:40px;font-size:17px}
.cat ul{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:4px 16px}
.cat li a{display:flex;justify-content:space-between;padding:9px 0;font-size:14px;color:var(--muted);border-bottom:1px solid var(--line)}
.cat li a:hover{color:var(--indigo)}

/* why */
.why{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.why div{padding:28px;border-radius:var(--r-md);background:var(--surface);border:1px solid var(--line)}
.why div:nth-child(1){background:var(--soft);border-color:transparent}
.why div:nth-child(2){background:#E5FBF4;border-color:transparent}
.why div:nth-child(3){background:#FFEFE8;border-color:transparent}
.why h4{font-size:19px;margin:14px 0 6px}
.why p{color:var(--muted);font-size:15px}
.why .ico{background:#fff;margin:0}

/* faq */
.faq{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;align-items:start}
details{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);padding:18px 22px}
summary{cursor:pointer;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:12px}
summary::after{content:"+";color:var(--indigo);font-size:20px;line-height:1}
details[open] summary::after{content:"–"}
details p{margin-top:12px;color:var(--muted);font-size:14.5px}

/* footer */
footer{margin-top:96px;background:var(--night);color:#B8C0F0;padding:64px 0 32px}
.fgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
footer .logo{color:#fff}
footer p{margin-top:14px;font-size:14px;max-width:280px}
footer h5{color:#fff;font-size:15px;margin-bottom:14px}
footer ul{list-style:none;display:grid;gap:10px;font-size:14px}
footer ul a:hover{color:#fff}
.copyr{margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.1);display:flex;justify-content:space-between;font-size:13px;gap:12px;flex-wrap:wrap}

@media(max-width:980px){
  .hero,.cats,.why,.faq,.fgrid{grid-template-columns:1fr}
  .tools{grid-template-columns:repeat(2,1fr)}
  .conn{grid-template-columns:1fr 1fr}
  .links{display:none}
}
@media(max-width:560px){.tools{grid-template-columns:1fr}.search{flex-direction:column;border-radius:24px;gap:8px}.search input{padding:14px 18px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}

/* v2 hero: full container width card */
.hero{display:block;padding:0}
.ipcard{display:grid;grid-template-columns:1fr 1.35fr;gap:36px;align-items:center;padding:44px 48px;width:100%}
.ipcard svg.globe{right:-60px;top:-140px;width:460px}
.ipcard h1{font-size:clamp(22px,2.4vw,30px);font-weight:700;letter-spacing:-.02em;line-height:1.15;margin-top:18px;color:#DDE3FF}
.ipcard .ip{font-size:clamp(40px,4.6vw,64px);line-height:1;margin:10px 0 26px}
.ip-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px 26px}
.ipcard .copy{width:auto;margin:0;padding:13px 30px}
.ipcard .trust{margin:0;color:#B8C0F0;font-size:13px;gap:16px}
.ipcard .grid{grid-template-columns:repeat(3,1fr)}
.ipcard .cell{padding:18px 18px}
.ipcard .cell strong{font-size:17px}

/* ad slots */
.ad{position:relative;display:grid;place-items:center;border:1px dashed #C9D0EA;border-radius:var(--r-md);
  background:repeating-linear-gradient(135deg,#F9FAFF 0 12px,#F1F3FC 12px 24px);color:#8790B5;font-size:12px;overflow:hidden;min-height:90px}
.ad>span{position:absolute;top:8px;left:12px;letter-spacing:.02em}
.ad-top{margin:10px 0 22px;min-height:90px}
.ad-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:22px 0 28px}
.ad-row .ad{min-height:120px}
@media(max-width:980px){
  .ipcard{grid-template-columns:1fr;padding:32px 26px;gap:28px}
}
@media(max-width:560px){
  .ipcard .grid{grid-template-columns:1fr 1fr}
  .ad-row{grid-template-columns:1fr}
}

/* v3 header */
.topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.78);backdrop-filter:saturate(180%) blur(16px);-webkit-backdrop-filter:saturate(180%) blur(16px);border-bottom:1px solid rgba(43,59,255,.10);box-shadow:0 8px 30px -18px rgba(20,28,120,.35)}
.topbar::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:linear-gradient(90deg,var(--indigo),#8B5CF6 50%,var(--mint))}
.topbar nav{height:84px}
.topbar .logo{font-size:24px}
.topbar .logo i{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--indigo),#8B5CF6 60%,var(--mint));box-shadow:0 10px 22px -8px rgba(43,59,255,.6)}
.topbar .logo i::after{width:14px;height:14px}
.topbar .links{gap:6px;background:var(--soft);padding:6px;border-radius:999px}
.topbar .links a{padding:9px 20px;border-radius:999px;font-size:15px;font-weight:600;color:#4A5177;transition:background .15s,color .15s}
.topbar .links a:hover{background:#fff;color:var(--indigo);box-shadow:0 4px 12px -6px rgba(20,28,120,.4)}
.nav-cta{display:flex;align-items:center;gap:14px}
.pill{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:#0B6B50;background:#E6FBF3;border:1px solid #BFF0DC;padding:7px 14px;border-radius:999px}
.pill b{width:8px;height:8px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 4px rgba(40,217,165,.25)}
.topbar .btn.primary{background:linear-gradient(135deg,var(--indigo),#7C4DFF);padding:14px 26px;box-shadow:0 12px 26px -10px rgba(43,59,255,.7)}
@media(max-width:700px){.pill{display:none}.topbar nav{height:70px}}
.hero + .conn{margin-top:22px}
.conn{margin-bottom:0}