:root{
  --bg:#0b1020; --bg2:#111834; --card:rgba(255,255,255,.045);
  --line:rgba(255,255,255,.10); --tx:#e8ecf8; --mut:#96a0c2;
  --acc:#6366f1; --acc2:#22d3ee; --danger:#f4556c;
  --r:14px; --shadow:0 18px 50px rgba(0,0,0,.45);
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; background:var(--bg); color:var(--tx);
  font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,Inter,Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit}
button,input,select{font:inherit;color:inherit}

/* ---------------- landing ---------------- */
#landing{
  min-height:100%;
  background:
    radial-gradient(1100px 600px at 50% -10%, rgba(99,102,241,.30), transparent 60%),
    radial-gradient(900px 500px at 90% 10%, rgba(34,211,238,.16), transparent 55%),
    linear-gradient(180deg,var(--bg),var(--bg2) 70%,var(--bg));
}
.nav{
  max-width:1120px;margin:0 auto;padding:22px 20px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;font-weight:700}
.brand-mark{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--acc),var(--acc2));color:#0b1020;
  font-weight:800;letter-spacing:.5px;font-size:14px;
}
.brand-name{font-size:19px;letter-spacing:-.3px}
.brand-name b{font-weight:800;background:linear-gradient(90deg,var(--acc),var(--acc2));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.nav-links{display:flex;gap:22px;font-size:14px}
.nav-links a{color:var(--mut);text-decoration:none}
.nav-links a:hover{color:var(--tx)}

.hero{max-width:820px;margin:0 auto;padding:48px 20px 8px;text-align:center}
.badge{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--mut);
  border:1px solid var(--line);background:var(--card);
  padding:6px 14px;border-radius:999px;margin-bottom:26px;
}
.dot{width:7px;height:7px;border-radius:50%;background:#34d399;
  box-shadow:0 0 0 0 rgba(52,211,153,.7);animation:pulse 2.2s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 9px rgba(52,211,153,0)}100%{box-shadow:0 0 0 0 rgba(52,211,153,0)}}
.hero h1{font-size:clamp(34px,6vw,58px);line-height:1.08;margin:0 0 18px;letter-spacing:-1.6px;font-weight:800}
.grad{background:linear-gradient(90deg,var(--acc),var(--acc2));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.sub{color:var(--mut);font-size:17px;max-width:560px;margin:0 auto 34px}

.omni{
  display:flex;align-items:center;gap:8px;padding:8px 8px 8px 16px;
  background:rgba(15,20,42,.78);border:1px solid var(--line);
  border-radius:999px;box-shadow:var(--shadow);backdrop-filter:blur(14px);
  transition:border-color .2s,box-shadow .2s;
}
.omni:focus-within{border-color:rgba(99,102,241,.75);box-shadow:0 0 0 4px rgba(99,102,241,.16),var(--shadow)}
.omni-ico{width:20px;height:20px;fill:var(--mut);flex:none}
#go-input{flex:1;min-width:0;background:none;border:0;outline:none;padding:12px 4px;font-size:16px}
#go-input::placeholder{color:#6d789c}
.omni-btn{
  flex:none;display:inline-flex;align-items:center;gap:6px;cursor:pointer;
  border:0;border-radius:999px;padding:12px 22px;font-weight:700;
  background:linear-gradient(135deg,var(--acc),var(--acc2));color:#08122a;
  transition:transform .15s,filter .15s;
}
.omni-btn:hover{filter:brightness(1.08)}
.omni-btn:active{transform:scale(.97)}
.omni-btn svg{width:18px;height:18px;fill:currentColor}

.tiles{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin:30px 0 8px}
.tile{
  display:inline-flex;align-items:center;gap:9px;cursor:pointer;
  padding:9px 15px;border-radius:999px;font-size:14px;font-weight:600;
  background:var(--card);border:1px solid var(--line);color:var(--tx);
  transition:transform .15s,border-color .15s,background .15s;
}
.tile:hover{transform:translateY(-2px);border-color:rgba(99,102,241,.6);background:rgba(99,102,241,.12)}
.tile i{width:22px;height:22px;border-radius:7px;display:grid;place-items:center;
  font-style:normal;font-size:12px;font-weight:800;color:#0b1020}

.features{
  max-width:1120px;margin:74px auto 0;padding:0 20px;
  display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(238px,1fr));
}
.features .card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px;
}
.features .ico{font-size:22px;margin-bottom:10px}
.features h3{margin:0 0 8px;font-size:16px}
.features p{margin:0;color:var(--mut);font-size:14px}

.faq{max-width:760px;margin:74px auto 0;padding:0 20px}
.faq h2{font-size:26px;margin:0 0 18px;letter-spacing:-.6px}
.faq details{border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin-bottom:10px;background:var(--card)}
.faq summary{cursor:pointer;font-weight:600;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";float:right;color:var(--mut)}
.faq details[open] summary::after{content:"–"}
.faq p{color:var(--mut);font-size:14px;margin:10px 0 0}

.foot{max-width:1120px;margin:70px auto 0;padding:26px 20px 46px;border-top:1px solid var(--line)}
.foot p{color:#6d789c;font-size:13px;margin:0;text-align:center}

/* ---------------- browser shell ---------------- */
#browser{position:fixed;inset:0;display:flex;flex-direction:column;background:#0e1428}
#browser[hidden]{display:none}
.bar{
  display:flex;align-items:center;gap:6px;padding:8px 10px;flex:none;
  background:#131a33;border-bottom:1px solid var(--line);
}
.ic{
  flex:none;width:36px;height:36px;border-radius:10px;cursor:pointer;
  background:transparent;border:1px solid transparent;font-size:16px;line-height:1;
  display:grid;place-items:center;color:var(--tx);transition:background .15s,border-color .15s;
}
.ic:hover{background:rgba(255,255,255,.08)}
.ic:disabled{opacity:.32;cursor:default;background:transparent}
.ic.danger:hover{background:rgba(244,85,108,.18);color:var(--danger)}
.sel{width:auto;padding:0 8px;background:rgba(255,255,255,.06);border:1px solid var(--line);font-size:13px}
.sel option{background:#131a33}
.addr{
  flex:1;min-width:0;display:flex;align-items:center;gap:8px;
  background:#0b1020;border:1px solid var(--line);border-radius:10px;padding:0 12px;height:36px;
}
.addr:focus-within{border-color:rgba(99,102,241,.7)}
.lock{font-size:11px;flex:none;opacity:.75}
#addr{flex:1;min-width:0;background:none;border:0;outline:none;font-size:14px;padding:0}

.progress{height:2px;background:transparent;flex:none;overflow:hidden}
.progress i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--acc),var(--acc2));transition:width .2s}
.progress.on i{width:88%;transition:width 9s cubic-bezier(.1,.8,.2,1)}
.progress.done i{width:100%;transition:width .25s}

.stage{position:relative;flex:1;min-height:0}
#frame{width:100%;height:100%;border:0;display:block;background:#fff}
.overlay{
  position:absolute;inset:0;display:grid;place-content:center;justify-items:center;gap:12px;
  background:#0e1428;color:var(--mut);text-align:center;padding:24px;
}
.overlay[hidden]{display:none}
.overlay p{margin:0;font-size:14px}
.overlay-sub{font-size:12px!important;color:#6d789c;max-width:420px}
.spinner{
  width:34px;height:34px;border-radius:50%;
  border:3px solid rgba(255,255,255,.14);border-top-color:var(--acc);
  animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

body.boot{display:grid;place-content:center;justify-items:center;gap:14px;
  background:var(--bg);color:var(--mut);text-align:center;padding:24px}
body.boot a{color:var(--acc2)}

@media (max-width:640px){
  .nav-links{display:none}
  .hero{padding-top:26px}
  .omni{padding-left:12px}
  .omni-btn span{display:none}
  .omni-btn{padding:12px 14px}
  .sel{display:none}
}

#b-reset{font-size:13px;opacity:.75}
#b-reset:hover{opacity:1}
.foot a{color:var(--acc2)}