:root{--bg:#eef1f5;--panel:#fff;--ink:#16202e;--muted:#57647a;--faint:#8a94a6;--line:#dce1ea;--line-strong:#c5ccda;
  --brand:#0f3d5c;--brand-2:#1a6ea3;--brand-soft:#e8eff4;--crit:#b3261e;--crit-bg:#fbe9e7;--warn:#c8641a;--warn-bg:#fbeee2;
  --med:#8a6d10;--med-bg:#f7f0da;--ok:#2f7d55;--ok-bg:#e6f1ea;--shadow:0 1px 2px rgba(16,30,50,.06),0 10px 30px rgba(16,30,50,.07);
  --shadow-lg:0 20px 50px rgba(16,30,50,.14);color-scheme:light}
@media(prefers-color-scheme:dark){:root{--bg:#0d1016;--panel:#151a23;--ink:#e6ebf3;--muted:#9fa9bc;--faint:#6d788d;--line:#232a37;
  --line-strong:#333c4c;--brand:#5fa8d3;--brand-2:#7cc0e6;--brand-soft:#152430;--crit:#f2857c;--crit-bg:#2a1614;--warn:#e6a468;
  --warn-bg:#2a1e12;--med:#d8c169;--med-bg:#26220f;--ok:#7fc79a;--ok-bg:#122117;--shadow:0 1px 2px rgba(0,0,0,.4),0 12px 34px rgba(0,0,0,.4);
  --shadow-lg:0 24px 60px rgba(0,0,0,.55);color-scheme:dark}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;line-height:1.5;-webkit-font-smoothing:antialiased}
.mono{font-family:"JetBrains Mono",ui-monospace,Menlo,monospace}a{color:var(--brand-2)}
nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:color-mix(in srgb,var(--panel) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-in{max-width:960px;margin:0 auto;padding:12px 20px;display:flex;align-items:center;justify-content:space-between;gap:14px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--brand)}
.brand .logo{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;display:grid;place-items:center;font-family:"JetBrains Mono",monospace;font-weight:700}
.brand small{display:block;font-size:9.5px;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--faint)}
.nav-cta{font-size:13px;color:var(--muted)}
.wrap{max-width:760px;margin:0 auto;padding-inline:20px}
.hero{text-align:center;padding-block:44px 20px}
.kicker{display:inline-flex;align-items:center;gap:7px;font-size:11.5px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--brand-2);background:var(--brand-soft);padding:5px 12px;border-radius:99px;margin-bottom:18px}
.kicker .d{width:6px;height:6px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 3px color-mix(in srgb,var(--ok) 25%,transparent)}
h1{font-size:34px;line-height:1.12;margin:0 0 12px;letter-spacing:-.02em;text-wrap:balance}
.hero p{color:var(--muted);font-size:15.5px;max-width:48ch;margin:0 auto}
.checkbox{background:var(--panel);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-lg);padding:22px;margin-top:26px}
.field{display:flex;gap:10px;flex-wrap:wrap}
.input{flex:1;min-width:200px;display:flex;align-items:center;gap:10px;background:var(--bg);border:1.5px solid var(--line-strong);border-radius:11px;padding:0 14px}
.input:focus-within{border-color:var(--brand-2);box-shadow:0 0 0 3px color-mix(in srgb,var(--brand-2) 18%,transparent)}
.input .at{color:var(--faint);font-weight:600}
.input input{flex:1;border:0;background:transparent;color:var(--ink);font-size:15px;padding:14px 0;outline:none;font-family:"JetBrains Mono",monospace}
.btn{border:0;border-radius:11px;padding:0 20px;font-size:14.5px;font-weight:600;cursor:pointer;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;white-space:nowrap;min-height:48px;transition:transform .08s,filter .15s}
.btn:hover{filter:brightness(1.06)}.btn:active{transform:translateY(1px)}
.btn.sec{background:transparent;color:var(--brand-2);border:1.5px solid var(--line-strong)}
.btn.ghost{background:transparent;color:var(--muted);border:1.5px solid var(--line);font-weight:500}
.hint{font-size:12px;color:var(--faint);margin-top:12px;text-align:center}
.steps-strip{display:flex;gap:6px;justify-content:center;margin-top:20px;flex-wrap:wrap}
.sstep{font-size:11px;color:var(--faint);display:flex;align-items:center;gap:6px}
.sstep .n{width:18px;height:18px;border-radius:50%;background:var(--bg);border:1px solid var(--line);display:grid;place-items:center;font-weight:700;font-size:10px}
.sstep.on{color:var(--brand-2)}.sstep.on .n{background:var(--brand-2);color:#fff;border-color:var(--brand-2)}
.sep{color:var(--line-strong)}
.stage{margin-top:26px;margin-bottom:40px}
.scanning{background:var(--panel);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:26px;text-align:center}
.bar{height:6px;background:var(--bg);border-radius:99px;overflow:hidden;margin:18px auto 0;max-width:340px}
.bar>i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--brand),var(--brand-2));border-radius:99px;transition:width .3s}
.scan-log{font-size:12.5px;color:var(--muted);margin-top:14px;min-height:20px}
.result{background:var(--panel);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);overflow:hidden}
.r-head{padding:20px 22px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:18px;align-items:center;flex-wrap:wrap}
.r-head .dom{font-family:"JetBrains Mono",monospace;font-weight:700;font-size:16px}.r-head .sub{font-size:12px;color:var(--faint);margin-top:2px}
.grade{display:flex;align-items:center;gap:12px}
.grade .g{width:56px;height:56px;border-radius:13px;display:grid;place-items:center;font-family:"JetBrains Mono",monospace;font-size:28px;font-weight:800}
.grade .g.ok{background:var(--ok-bg);color:var(--ok)}.grade .g.med{background:var(--med-bg);color:var(--med)}.grade .g.warn{background:var(--warn-bg);color:var(--warn)}.grade .g.bad{background:var(--crit-bg);color:var(--crit)}
.grade .lbl{font-size:11px;text-transform:uppercase;letter-spacing:.1em;font-weight:600}.grade .lbl.ok{color:var(--ok)}.grade .lbl.med{color:var(--med)}.grade .lbl.warn{color:var(--warn)}.grade .lbl.bad{color:var(--crit)}
.cats{padding:8px 22px 4px}
.cat{display:flex;align-items:center;gap:13px;padding:13px 0;border-bottom:1px solid var(--line)}.cat:last-child{border-bottom:0}
.cat .ic{width:26px;height:26px;border-radius:7px;display:grid;place-items:center;font-weight:800;font-size:14px;flex:none;font-family:"JetBrains Mono",monospace}
.cat .t{flex:1;min-width:0}.cat .t b{font-size:14px;font-weight:600}.cat .t span{display:block;font-size:12px;color:var(--muted)}
.cat .tag{font-size:10px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;padding:3px 9px;border-radius:6px;white-space:nowrap}
.bad .ic{background:var(--crit-bg);color:var(--crit)}.tag.bad{background:var(--crit-bg);color:var(--crit)}
.warn .ic{background:var(--warn-bg);color:var(--warn)}.tag.warn{background:var(--warn-bg);color:var(--warn)}
.med .ic{background:var(--med-bg);color:var(--med)}.tag.med{background:var(--med-bg);color:var(--med)}
.ok .ic{background:var(--ok-bg);color:var(--ok)}.tag.ok{background:var(--ok-bg);color:var(--ok)}
.lockrow{filter:saturate(.4)}.lockmsg{font-size:11px;color:var(--faint);display:flex;align-items:center;gap:5px}
.gate{margin:4px 22px 22px;background:var(--brand-soft);border-radius:13px;padding:18px}
.gate h3{margin:0 0 4px;font-size:15px;color:var(--brand)}.gate p{margin:0 0 14px;font-size:13px;color:var(--muted)}
.tabs{display:flex;gap:8px;margin-bottom:14px}
.tabs button{flex:1;font-size:12.5px;font-weight:600;padding:9px;border-radius:9px;border:1.5px solid var(--line);background:var(--panel);color:var(--muted);cursor:pointer}
.tabs button[aria-selected=true]{border-color:var(--brand-2);color:var(--brand-2);background:color-mix(in srgb,var(--brand-2) 8%,var(--panel))}
.verify-body{background:var(--panel);border:1px solid var(--line);border-radius:11px;padding:16px}
label.fl{display:block;font-size:12px;font-weight:600;color:var(--muted);margin-bottom:6px}
.txtin{width:100%;border:1.5px solid var(--line-strong);border-radius:10px;padding:12px 13px;font-size:14px;background:var(--bg);color:var(--ink);font-family:"JetBrains Mono",monospace;outline:none}
.txtin:focus{border-color:var(--brand-2)}
.codebox{background:var(--bg);border:1px dashed var(--line-strong);border-radius:9px;padding:11px 13px;font-family:"JetBrains Mono",monospace;font-size:12.5px;display:flex;justify-content:space-between;align-items:center;gap:10px;margin:10px 0;overflow-x:auto}
.copy{font-size:11px;border:1px solid var(--line-strong);background:var(--panel);border-radius:7px;padding:5px 9px;cursor:pointer;color:var(--muted);white-space:nowrap}
.err{font-size:12px;color:var(--crit);margin-top:8px;display:none}
.success{text-align:center;padding:30px 22px}
.success .ck{width:60px;height:60px;border-radius:50%;background:var(--ok-bg);color:var(--ok);display:grid;place-items:center;font-size:30px;margin:0 auto 14px}
.success h3{margin:0 0 6px;font-size:19px}.success p{color:var(--muted);font-size:14px;max-width:42ch;margin:0 auto 18px}
.paid{margin-top:14px;border:1px solid var(--line);border-radius:13px;padding:18px;background:var(--panel)}
.paid h4{margin:0 0 3px;font-size:14px}.paid .price{font-size:12px;color:var(--brand-2);font-weight:600}.paid p{font-size:12.5px;color:var(--muted);margin:8px 0 0}
.pform{display:grid;gap:12px;background:var(--bg);border:1px solid var(--line);border-radius:11px;padding:16px;margin-top:14px}
.ck-l{display:flex;gap:9px;font-size:12.5px;color:var(--muted);align-items:flex-start;cursor:pointer}.ck-l input{margin-top:3px}
footer{border-top:1px solid var(--line);margin-top:10px;padding:22px 20px 30px}
footer .fin{max-width:760px;margin:0 auto;font-size:11.5px;color:var(--faint);text-align:center}
@media(max-width:560px){h1{font-size:27px}.r-head{flex-direction:column;align-items:flex-start}}