:root{color-scheme:dark;--bg:#080e14;--panel:#111d28;--panel2:#0c161f;--line:rgba(164,203,216,.16);--text:#eaf3f5;--muted:#8da2aa;--accent:#56d3c2;--accent2:#77a9ff;--warm:#eda967;--green:#72e0ab;--red:#ff858d;--on:#061312}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:var(--bg);color:var(--text);font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif}.ambient{position:fixed;z-index:-1;border-radius:50%;filter:blur(90px);opacity:.13;pointer-events:none}.ambient-a{width:470px;height:470px;right:-220px;top:-240px;background:var(--accent)}.ambient-b{width:330px;height:330px;left:-150px;bottom:-150px;background:var(--accent2)}.shell{width:min(1060px,calc(100% - 44px));margin:auto;padding:30px 0 44px}.topbar{height:50px;display:flex;justify-content:space-between;align-items:center}.brand{display:flex;align-items:center;gap:11px;color:var(--text);text-decoration:none}.brand b{font-size:16px;letter-spacing:.08em}.brand small{display:block;color:#718790;font:9px ui-monospace,monospace;letter-spacing:.16em;margin-top:4px}.brand-mark{display:flex;align-items:flex-end;gap:3px;height:27px}.brand-mark i{display:block;width:4px;border-radius:4px;background:linear-gradient(var(--accent),var(--accent2));transform:skew(-18deg)}.brand-mark i:nth-child(1){height:13px}.brand-mark i:nth-child(2){height:21px}.brand-mark i:nth-child(3){height:27px}.secure{font:10px ui-monospace,monospace;letter-spacing:.13em;color:var(--muted)}.secure i{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--green);box-shadow:0 0 11px var(--green);margin-right:7px}.hero{display:flex;justify-content:space-between;align-items:center;padding:95px 0 60px;border-bottom:1px solid var(--line)}.eyebrow{color:var(--accent);font:10px ui-monospace,monospace;letter-spacing:.2em}.hero h1{font-size:clamp(43px,6.8vw,78px);line-height:.95;letter-spacing:-.07em;margin:17px 0 23px}.hero h1 em{font-style:normal;color:var(--accent)}.lead{max-width:520px;color:var(--muted);font-size:14px;line-height:1.8;margin:0}.radar{width:185px;height:185px;margin-right:7%;position:relative;display:grid;place-items:center}.radar span{width:62px;height:62px;display:grid;place-items:center;border:1px solid rgba(86,211,194,.7);border-radius:18px;transform:rotate(45deg);background:rgba(86,211,194,.09);color:var(--accent);font:700 14px ui-monospace,monospace;box-shadow:0 0 34px rgba(86,211,194,.18)}.radar i{position:absolute;width:176px;height:76px;border:1px solid rgba(86,211,194,.24);border-radius:50%;transform:rotate(-25deg) skewX(-12deg)}.radar i:nth-of-type(2){width:135px;height:174px;transform:rotate(55deg) skewX(-12deg);border-color:rgba(119,169,255,.23)}.radar b{position:absolute;width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 13px var(--accent);right:19px;top:16px}.workspace{display:grid;grid-template-columns:1fr 1fr;gap:18px;padding-top:24px}.panel{background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:27px;min-height:535px;box-shadow:0 1px 3px rgba(8,30,38,.25)}.panel-head{display:flex;align-items:flex-start;justify-content:space-between}.panel-head>div{display:flex;gap:12px}.step{font:10px ui-monospace,monospace;color:var(--accent);padding-top:4px}.panel h2{margin:0;font-size:19px;letter-spacing:-.03em}.state{color:var(--muted);font:10px ui-monospace,monospace;letter-spacing:.14em}.state.done{color:var(--green)}.field{display:block;margin-top:21px}.field>span{display:block;color:#d7e5e8;font-size:12px;margin-bottom:8px}.field input,.field select{width:100%;height:48px;border:1px solid var(--line);border-radius:11px;background:var(--panel2);color:var(--text);padding:0 13px;outline:0;font-size:13px}.field input{font-family:ui-monospace,monospace}.field input:focus,.field select:focus{border-color:var(--accent);box-shadow:0 0 0 4px rgba(86,211,194,.1)}.field small{display:block;color:#718790;font-size:10px;margin-top:7px}.key-status{min-height:20px;color:var(--muted);font-size:12px;margin:16px 0 13px}.key-status i{display:inline-block;width:7px;height:7px;border-radius:50%;background:currentColor;margin-right:7px}.key-status.valid{color:var(--green)}.key-status.invalid{color:var(--red)}.primary,.copy-button{border:0;border-radius:11px;height:49px;cursor:pointer;font-weight:700;display:flex;align-items:center;justify-content:space-between;padding:0 15px;transition:transform .2s,filter .2s}.primary{width:100%;background:var(--accent);color:var(--on);box-shadow:0 12px 27px rgba(86,211,194,.16)}.primary:hover{transform:translateY(-2px);filter:brightness(1.08)}.primary:disabled{opacity:.6;cursor:wait;transform:none}.primary b,.copy-button b{font-size:18px}.message{min-height:18px;color:var(--green);font-size:12px;margin:12px 0 0}.message.error{color:var(--red)}.result-panel{display:flex;flex-direction:column}.empty-result,.ready-result{flex:1;display:flex;align-items:center;justify-content:center;flex-direction:column;text-align:center}.reticle{font-size:50px;color:#6698c8;transform:rotate(-10deg);margin-bottom:13px}.empty-result strong,.ready-result strong{font-size:17px}.empty-result span,.result-note{font-size:11px;color:var(--muted);margin-top:8px}.check{width:52px;height:52px;border:1px solid rgba(114,224,171,.55);border-radius:50%;display:grid;place-items:center;color:var(--green);font-size:25px;box-shadow:0 0 27px rgba(114,224,171,.12);margin-bottom:14px}.password{font:700 27px ui-monospace,monospace;letter-spacing:.09em;color:var(--accent);border:1px solid rgba(86,211,194,.28);background:var(--panel2);padding:14px 17px;border-radius:11px;margin-top:20px}.copy-button{width:180px;height:42px;margin-top:16px;background:rgba(86,211,194,.1);border:1px solid rgba(86,211,194,.45);color:var(--accent)}.copy-button:hover{background:rgba(86,211,194,.18)}.privacy{display:flex;gap:9px;border-top:1px solid var(--line);padding-top:14px;margin-top:20px;color:#718790;font-size:10px;line-height:1.6}.privacy span{font-size:17px;color:var(--accent)}.privacy p{margin:0}footer{display:flex;justify-content:space-between;border-top:1px solid var(--line);padding-top:18px;margin-top:21px;color:#647b83;font:10px ui-monospace,monospace}@media(max-width:760px){.shell{width:calc(100% - 30px);padding-top:20px}.hero{display:block;padding:65px 0 37px}.hero h1{font-size:52px}.radar{width:145px;height:145px;margin:42px auto 0}.radar i{width:137px;height:61px}.radar i:nth-of-type(2){width:108px;height:135px}.workspace{grid-template-columns:1fr}.panel{padding:23px;min-height:420px}}@media(max-width:480px){.secure{font-size:0}.secure i{margin:0}.hero h1{font-size:47px}.workspace{padding-top:15px}footer{display:block;line-height:2.1}footer span{display:block}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition-duration:.01ms!important}.primary:hover{transform:none}}

/* Camera scanner surface */
.scan-field{margin-top:21px}.scan-card{position:relative;min-height:178px;border:1px solid rgba(86,211,194,.28);border-radius:16px;background:radial-gradient(circle at 50% 45%,rgba(86,211,194,.12),transparent 50%),#0b1721;display:flex;align-items:center;justify-content:center;flex-direction:column;overflow:hidden;cursor:pointer;transition:transform .25s,border-color .25s,background .25s}.scan-card:hover,.scan-card:focus-visible{transform:translateY(-2px);border-color:var(--accent);background:radial-gradient(circle at 50% 45%,rgba(86,211,194,.18),transparent 50%),#0d1d28;outline:none}.scan-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(86,211,194,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(86,211,194,.08) 1px,transparent 1px);background-size:24px 24px;mask-image:linear-gradient(to bottom,transparent,black,transparent);opacity:.45}.scan-beam{position:absolute;left:12%;right:12%;top:35%;height:1px;background:var(--accent);box-shadow:0 0 14px 2px rgba(86,211,194,.65);animation:scanBeam 2.5s ease-in-out infinite}.scan-glyph{position:relative;color:var(--accent);font:38px ui-monospace,monospace;line-height:1;margin-bottom:12px;text-shadow:0 0 18px rgba(86,211,194,.5)}.scan-card strong,.scan-card span{position:relative}.scan-card strong{font-size:14px}.scan-card span{color:var(--muted);font-size:10px;margin-top:7px}.scan-corner{position:absolute;width:22px;height:22px;border-color:var(--accent);opacity:.8}.corner-tl{left:22px;top:22px;border-left:2px solid;border-top:2px solid}.corner-tr{right:22px;top:22px;border-right:2px solid;border-top:2px solid}.corner-bl{left:22px;bottom:22px;border-left:2px solid;border-bottom:2px solid}.corner-br{right:22px;bottom:22px;border-right:2px solid;border-bottom:2px solid}.scan-button,.stop-scan{width:100%;margin-top:10px;height:42px;border-radius:10px;cursor:pointer;font-weight:700}.scan-button{background:rgba(86,211,194,.1);border:1px solid rgba(86,211,194,.45);color:var(--accent)}.stop-scan{background:rgba(255,133,141,.08);border:1px solid rgba(255,133,141,.35);color:var(--red)}.scan-button:hover,.stop-scan:hover{filter:brightness(1.15)}.camera-stage{position:relative;min-height:260px;border-radius:16px;overflow:hidden;background:#050c11;border:1px solid rgba(86,211,194,.38)}.camera-stage video{display:block;width:100%;height:260px;object-fit:cover}.camera-frame{position:absolute;inset:19% 17%;border:1px solid rgba(86,211,194,.5);box-shadow:0 0 0 999px rgba(2,9,13,.35)}.camera-frame i{position:absolute;width:22px;height:22px;border-color:var(--accent)}.camera-frame i:nth-child(1){left:-1px;top:-1px;border-left:2px solid;border-top:2px solid}.camera-frame i:nth-child(2){right:-1px;top:-1px;border-right:2px solid;border-top:2px solid}.camera-frame i:nth-child(3){left:-1px;bottom:-1px;border-left:2px solid;border-bottom:2px solid}.camera-frame i:nth-child(4){right:-1px;bottom:-1px;border-right:2px solid;border-bottom:2px solid}.camera-frame b{position:absolute;left:0;right:0;top:0;height:2px;background:var(--accent);box-shadow:0 0 14px 2px var(--accent);animation:scanBeam 2s ease-in-out infinite}.camera-status{position:absolute;bottom:12px;left:0;right:0;text-align:center;color:#d9f7f2;font:11px ui-monospace,monospace;text-shadow:0 1px 5px #000}.scan-message{min-height:17px;margin:9px 0 0;color:var(--green);font-size:11px}.scan-message.error{color:var(--red)}@keyframes scanBeam{0%,100%{transform:translateY(-36px);opacity:.35}50%{transform:translateY(36px);opacity:1}}@media(prefers-reduced-motion:reduce){.scan-beam,.camera-frame b{animation:none;opacity:.8}}