/* Shark Futures Color System v1.0, see design-tokens/shark.design.md */
:root{--bg:#050E09;--panel:#08120C;--line:rgba(15,242,93,.14);--line-strong:rgba(15,242,93,.32);--text:#fff;--muted:#B9B7BB;--green:#0CF25D;--green-ink:#04140a;--warn:#F5A623;--font:'Inter Tight',system-ui,sans-serif}
*{box-sizing:border-box}
body{margin:0;min-height:100vh;display:grid;place-items:center;padding:16px;background:radial-gradient(ellipse 60% 45% at 50% 0,rgba(10,143,61,.35),transparent 70%),var(--bg);color:var(--text);font:16px/1.5 var(--font)}
main{width:100%;max-width:420px;padding:28px;border:1px solid var(--line);border-radius:12px;background:var(--panel)}
.brand{display:flex;gap:10px;align-items:center;margin-bottom:20px}
.brand b{display:block;letter-spacing:.06em}
.brand span{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
h1{font-size:20px;margin:0 0 6px}
p,.msg{margin:0 0 16px;color:var(--muted)}
.msg{font-size:14px;margin:14px 0 0}
.msg:empty{display:none}
.msg.warn{color:var(--warn)}
.msg a{color:var(--green)}
label{display:block;font-size:13px;color:var(--muted);margin:12px 0 4px}
input{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:8px;background:transparent;color:var(--text);font:inherit}
input:focus{outline:2px solid var(--green);outline-offset:1px;border-color:var(--line-strong)}
button{width:100%;font:inherit;padding:11px 18px;border:0;border-radius:8px;background:var(--green);color:var(--green-ink);font-weight:600;cursor:pointer;margin-top:16px}
button:hover{filter:brightness(1.08)}
button:disabled{opacity:.6;cursor:default}
button.link{width:auto;background:none;color:var(--muted);padding:0;margin-top:20px;font-weight:500;text-decoration:underline}
button.link:hover{filter:none;color:var(--text)}
[hidden]{display:none!important}
.code{letter-spacing:.4em;font-size:22px;text-align:center}
#qr{background:#fff;border-radius:8px;padding:8px;width:200px;margin:8px auto}
#qr svg{display:block;width:100%;height:auto}
.mono{font-family:ui-monospace,Consolas,monospace;font-size:13px;word-break:break-all}