:root{--background:#171020;--panel:#30213d;--panel-dark:#21162c;--border:#684b82;--highlight:#9974b8;--text:#f5effb;--muted:#bbaacb;--accent:#c6a0ec;--danger:#efabb6}*{box-sizing:border-box}html{min-height:100%;background:var(--background)}body{min-height:100vh;margin:0;padding:28px 16px 44px;color:var(--text);font:14px Arial,Tahoma,Verdana,sans-serif;background:linear-gradient(140deg,#261936,#1a1028 48%,#100b18)}a{color:var(--accent)}.shell{width:min(980px,100%);margin:0 auto}.topbar,.card{border:1px solid var(--border);background:linear-gradient(145deg,#49315f,#2d1e3b);box-shadow:inset 0 1px var(--highlight),inset 0 -3px #27222c,0 5px 12px #0008}.topbar{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:15px 18px;border-radius:5px}.card{margin-top:20px;padding:28px;border-radius:6px}.compact{width:min(540px,100%);margin-left:auto;margin-right:auto}.brand{color:#fff;text-decoration:none;font:bold 22px Arial,Tahoma,Verdana,sans-serif;text-shadow:1px 2px #25202a}.brand small{display:block;margin-top:4px;color:var(--muted);font:11px Arial,Tahoma,Verdana,sans-serif;letter-spacing:1.5px;text-transform:uppercase}.nav{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:7px}.nav a,.nav button,button{padding:8px 11px;border:1px solid var(--border);border-radius:4px;color:#fff;background:linear-gradient(#786d7e,#574e5d 50%,#403746 51%,#62576a);box-shadow:inset 0 1px #d0c9d2,0 2px 3px #0008;font:bold 12px Arial,Tahoma,Verdana,sans-serif;text-decoration:none;cursor:pointer}.nav a:hover,.nav button:hover,button:hover{filter:brightness(1.08)}h1{margin:0 0 7px;color:#fff;font:bold 29px Arial,Tahoma,Verdana,sans-serif;text-shadow:1px 2px #25202a}h2{margin:0;color:#fff;font:bold 20px Arial,Tahoma,Verdana,sans-serif}.eyebrow{margin:0 0 7px;color:var(--accent);font-size:11px;font-weight:bold;letter-spacing:1.8px;text-transform:uppercase}.subtitle{margin:0 0 24px;color:var(--muted);font-size:13px;line-height:1.5}.home-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}.link-item{min-height:126px;padding:17px;border:1px solid var(--border);border-radius:4px;color:var(--text);background:linear-gradient(145deg,#4d3564,#342244);box-shadow:inset 0 1px #d8d1d9,inset 0 -3px #2d2732,0 3px 5px #0009;text-decoration:none}.link-item:hover{background:linear-gradient(145deg,#614277,#452d5a)}.link-title{margin-bottom:9px;color:#fff;font:bold 18px Arial,Tahoma,Verdana,sans-serif}.link-desc{color:var(--muted);font-size:12px;line-height:1.5}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 14px}.input-group{margin-bottom:16px}.input-group.full{grid-column:1/-1}label{display:block;margin:0 0 5px;color:#e7e1e9;font-size:12px;font-weight:bold}input,select{width:100%;height:38px;padding:8px 10px;border:1px solid #9c93a4;border-radius:4px;outline:0;color:#fff;background:linear-gradient(#29232d,#3a333f);box-shadow:inset 0 2px 5px #000a,0 1px #c8c1ca;font:14px Arial,Tahoma,Verdana,sans-serif}select{font-family:Arial,Tahoma,Verdana,sans-serif}input:focus,select:focus{border-color:#e0d5e5;box-shadow:inset 0 2px 5px #000a,0 0 0 2px #d1c4d555}input[type=number]{font-family:Consolas,monospace}button.primary{width:100%;min-height:40px;padding:9px 14px;color:#322b37;background:linear-gradient(#eeeaf0,#d1c9d3 49%,#aaa1ad 51%,#c3bbc8);border-color:#eeeaf0;box-shadow:inset 0 1px #fff,inset 0 -3px #776d7d,0 3px 5px #0009;font:bold 13px Arial,Tahoma,Verdana,sans-serif}button.primary:active{transform:translateY(1px)}button:disabled{cursor:wait;opacity:.6}.tabs{display:flex;gap:4px;margin-bottom:20px;padding:4px;border:1px solid var(--border);border-radius:4px;background:#2b2530;box-shadow:inset 0 2px 5px #0009}.tab{flex:1;padding:9px;border-color:transparent;background:transparent;box-shadow:none;color:var(--muted);font:bold 13px Arial,Tahoma,Verdana,sans-serif}.tab.active{border-color:#b8afbc;background:linear-gradient(#776d7f,#514958);box-shadow:inset 0 1px #e6e2e8;color:#fff}.result-box{margin-top:17px;padding:14px;border:1px solid var(--border);border-radius:4px;color:var(--text);background:linear-gradient(#433a49,#2b2530);box-shadow:inset 0 2px 6px #0009;line-height:1.7;word-break:break-word}.serial-result{color:#f4ecff;text-align:center;font:bold 22px Consolas,monospace}.ota-result{margin-top:18px;padding:16px;border:1px solid var(--border);border-radius:5px;background:linear-gradient(#49404f,#302934);box-shadow:inset 0 1px #d0c8d1,0 3px 6px #0009}.result-heading{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:15px}.details{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:0}.detail{padding:9px;border:1px solid #756b7c;background:#37303d}.detail dt{color:var(--muted);font-size:10px;text-transform:uppercase}.detail dd{margin:4px 0 0;color:#fff;font:700 13px Consolas,monospace;word-break:break-word}.download{padding:9px 12px;border:1px solid #87988a;border-radius:4px;color:#f0f6f0;background:linear-gradient(#718575,#4b5e4e);box-shadow:inset 0 1px #d7e1d8,0 2px 4px #0008;font-weight:bold;text-decoration:none;white-space:nowrap}.debug{margin-top:16px;border-top:1px solid #756b7c;padding-top:10px}.debug summary{color:var(--muted);cursor:pointer;font-size:12px}.debug pre{max-height:300px;overflow:auto;margin:9px 0 0;padding:10px;white-space:pre-wrap;color:#eeeaf0;background:#201b23;border:1px solid #625968;font:12px Consolas,monospace}.error{margin-top:14px;padding:10px;border:1px solid #b86c7a;border-left:4px solid var(--danger);border-radius:4px;color:#ffe0e6;background:#4a2930;font-size:12px}[hidden]{display:none!important}@media(max-width:650px){body{padding:12px 8px 28px}.topbar{align-items:flex-start;flex-direction:column}.nav{justify-content:flex-start}.home-grid,.form-grid,.details{grid-template-columns:1fr}.input-group.full{grid-column:auto}.card{padding:20px 16px}.result-heading{align-items:flex-start;flex-direction:column}h1{font-size:25px}}