:root{--bg:#f2f4f7;--card:#fff;--ink:#101923;--mute:#55626f;--line:#d6dce2;--accent:#2457e6;--ok:#16905b;--bad:#c0392b;--warn:#9a6a00;color-scheme:light dark}
@media (prefers-color-scheme:dark){:root{--bg:#0f151b;--card:#18212a;--ink:#e9eef2;--mute:#9aa7b3;--line:#2a3641;--accent:#7c9dff;--ok:#46c98b;--bad:#ff7b6b;--warn:#f0b93a}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.45 -apple-system,"Segoe UI",Roboto,sans-serif}
header{display:flex;align-items:center;gap:16px;padding:10px 18px;background:var(--card);border-bottom:1px solid var(--line);flex-wrap:wrap}
.brand{font-weight:800;display:flex;align-items:center;gap:8px}.logo{background:var(--accent);color:#fff;border-radius:7px;padding:1px 8px}
nav{display:flex;gap:4px;flex:1;flex-wrap:wrap}nav button{background:none;border:0;padding:8px 12px;border-radius:8px;font:inherit;color:var(--mute);cursor:pointer;font-weight:600}
nav button[aria-current=page]{background:var(--bg);color:var(--ink)}#who{color:var(--mute);font-size:13px;display:flex;gap:10px;align-items:center}
main{max-width:980px;margin:0 auto;padding:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px;margin-bottom:14px}
h1{font-size:22px;margin:4px 0 14px}h2{font-size:16px;margin:0 0 10px}
.muted{color:var(--mute)}.small{font-size:13px}.ok{color:var(--ok);font-weight:700}.bad{color:var(--bad);font-weight:700}.warn{color:var(--warn);font-weight:700}
button.btn{min-height:40px;padding:0 16px;border-radius:10px;border:1.5px solid var(--line);background:var(--card);color:var(--ink);font:inherit;font-weight:650;cursor:pointer}
button.primary{background:var(--accent);border-color:var(--accent);color:#fff}button.danger{color:var(--bad)}button:disabled{opacity:.5;cursor:default}
input{min-height:42px;border-radius:10px;border:1.5px solid var(--line);background:var(--card);color:var(--ink);padding:0 12px;font:inherit;width:100%}
input.code{font-size:22px;letter-spacing:.3em;text-align:center;font-weight:700;max-width:220px}
.stack>*+*{margin-top:10px}.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.grow{flex:1}
table{width:100%;border-collapse:collapse;font-size:14px}th,td{text-align:left;padding:7px 6px;border-bottom:1px solid var(--line);vertical-align:top}th{color:var(--mute);font-weight:600;font-size:12px}
.kv{display:grid;grid-template-columns:150px 1fr;gap:6px 12px}code,pre{font-family:ui-monospace,Menlo,monospace;font-size:13px}
pre{white-space:pre-wrap;background:var(--bg);padding:10px;border-radius:10px;max-height:340px;overflow:auto;margin:0}
.msg{padding:10px 12px;border-radius:10px;background:var(--bg)}.msg.error{color:var(--bad);font-weight:600}.msg.good{color:var(--ok);font-weight:600}
.pill{font-size:12px;padding:2px 8px;border-radius:99px;background:var(--bg);color:var(--mute);font-weight:600}
.dialog{position:fixed;inset:0;background:rgba(8,12,17,.55);display:flex;align-items:center;justify-content:center;padding:14px;z-index:9}
.panel{background:var(--card);border-radius:16px;padding:18px;max-width:520px;width:100%;max-height:90vh;overflow:auto}
.login{max-width:380px;margin:60px auto}

/* phones */
html{-webkit-text-size-adjust:100%}button,input,a{touch-action:manipulation}input{font-size:16px}
.scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}.warn{color:var(--warn);font-weight:600}
details{margin-top:6px}summary{cursor:pointer;color:var(--accent)}
@media (max-width:640px){header{padding:8px 10px;gap:8px}nav{order:3;width:100%;overflow-x:auto;flex-wrap:nowrap}nav button{white-space:nowrap}
 main{padding:12px 10px}.card{padding:12px}.kv{grid-template-columns:1fr}.kv>*:nth-child(odd){color:var(--mute);font-size:12px;margin-top:6px}
 table{font-size:13px}button.btn{min-height:44px}.panel{padding:14px}}
[hidden]{display:none!important}