:root{
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px);
  padding-bottom:env(safe-area-inset-bottom,0px);
  --bg:#F5F6F8;--card:#FFFFFF;--ink:#0B1226;--mute:#4A5472;--line:#D7DCE6;
  --soft:#E8EDFF;--gsoft:#DDF5E9;--blue:#1F4FFF;--link:#1F4FFF;--gain:#0B7A4E;--bad:#B3261E;--badbg:#FDECEA;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){--bg:#070A14;--card:#0D1630;--ink:#EEF2FF;--mute:#AEB9DB;--line:#26355F;--soft:#12204A;--gsoft:#0F3326;--link:#8DAAFF;--gain:#5BE0A5;--bad:#FF8A80;--badbg:#3A1512;color-scheme:dark}
}
:root[data-theme="dark"]{--bg:#070A14;--card:#0D1630;--ink:#EEF2FF;--mute:#AEB9DB;--line:#26355F;--soft:#12204A;--gsoft:#0F3326;--link:#8DAAFF;--gain:#5BE0A5;--bad:#FF8A80;--badbg:#3A1512;color-scheme:dark}
*,*::before,*::after{box-sizing:inherit}
html{scroll-padding-top:env(safe-area-inset-top,0px)}
body{margin:0;background:var(--bg);color:var(--ink);font:400 16px/1.55 'DM Sans',system-ui,-apple-system,'Segoe UI',sans-serif;-webkit-font-smoothing:antialiased}
h1,h2,p{margin:0}
a{color:inherit}
button,input{font-family:inherit}
:focus-visible{outline:3px solid var(--link);outline-offset:2px}
.w{width:100%;max-width:1080px;margin:0 auto;padding-left:24px;padding-right:24px}
.top{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:14px;padding-bottom:14px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--link);font:900 30px/1 'Nunito','Plus Jakarta Sans',sans-serif;letter-spacing:-.5px}
.logo svg{display:block;width:36px;height:36px;border-radius:8px}
.right{display:flex;align-items:center;gap:10px}
.tl{display:inline-flex;align-items:center;min-height:44px;padding:0 12px;font-weight:600;font-size:15px;text-decoration:none;background:none;border:0;color:var(--ink);cursor:pointer}
.tl:hover{color:var(--link)}
.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:14px;font:700 18px 'Plus Jakarta Sans','DM Sans',sans-serif;text-decoration:none;white-space:nowrap;border:0;cursor:pointer;min-height:56px;padding:0 32px}
.btn.full{display:flex;width:100%}
.btn[disabled]{opacity:.6;cursor:not-allowed}
.shine{position:relative;overflow:hidden;isolation:isolate;background:var(--blue);color:#fff;box-shadow:inset 0 1px 0 rgba(255,255,255,.4),inset 0 -2px 0 rgba(0,0,0,.2),0 8px 20px -8px rgba(31,79,255,.7);transition:transform .15s,filter .15s}
.shine:hover:not([disabled]){transform:translateY(-1px);filter:brightness(1.1)}
.shine span{position:relative;z-index:1}
.shine::after{content:"";position:absolute;top:-30%;bottom:-30%;left:0;width:45%;background:linear-gradient(100deg,transparent 0,rgba(255,255,255,.6) 50%,transparent 100%);transform:translateX(-160%) skewX(-20deg);will-change:transform;animation:sheen 3.8s ease-in-out infinite;pointer-events:none}
@keyframes sheen{0%,60%{transform:translateX(-160%) skewX(-20deg)}100%{transform:translateX(330%) skewX(-20deg)}}
@media (prefers-reduced-motion:reduce){.shine::after{display:none}}
.out{border:1px solid var(--ink);background:transparent;color:var(--ink)}

.wrap{display:flex;justify-content:center;padding:clamp(24px,6vw,64px) 20px 80px}
.card{width:100%;max-width:440px;background:var(--card);border:1px solid var(--line);border-radius:20px;padding:clamp(24px,5vw,36px);box-shadow:10px 10px 0 var(--line);display:flex;flex-direction:column;gap:18px}
.card h1{font:800 clamp(28px,5vw,36px)/1.1 'Plus Jakarta Sans','DM Sans',sans-serif;letter-spacing:-.03em}
.lede{color:var(--mute);text-wrap:pretty}
.field{display:flex;flex-direction:column;gap:6px;font-weight:600;font-size:14px}
.field input{width:100%;min-height:52px;border:1px solid var(--line);background:var(--bg);color:var(--ink);border-radius:12px;padding:0 14px;font-size:17px}
.field input:focus{outline:3px solid var(--link);outline-offset:2px}
.hint{font-weight:400;font-size:13px;color:var(--mute)}
.err{display:none;background:var(--badbg);color:var(--bad);border-radius:10px;padding:10px 14px;font-size:14px;font-weight:600}
.err.show{display:block}
.or{display:flex;align-items:center;gap:12px;color:var(--mute);font-size:13px}
.or::before,.or::after{content:"";flex:1;height:1px;background:var(--line)}
.gbox{display:flex;justify-content:center;min-height:44px}
.alt{text-align:center;color:var(--mute);font-size:15px}
.alt a{color:var(--link);font-weight:700}
.rows{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.rows div{display:flex;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px solid var(--line);font-size:15px}
.rows span:first-child{color:var(--mute)}
.rows b{text-align:right;word-break:break-word}
.badge{display:inline-block;border-radius:100px;padding:2px 12px;font-size:13px;font-weight:700;background:var(--soft);color:var(--link)}
.badge.ok{background:var(--gsoft);color:var(--gain)}
.callout{background:var(--soft);border-radius:12px;padding:14px 16px;font-size:15px}
.vh{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}