:root{
  color-scheme:dark;
  --bg:#0e1012; --panel:#181b20; --panel2:#22262c;
  --text:#f7f7f5; --muted:#b9bec6; --line:#3a4049;
  --accent:#e5c268; --good:#aee9bb; --bad:#ffb4ab;
}
*{box-sizing:border-box}
html{font-size:18px}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  line-height:1.5
}
main{width:min(820px,100%);margin:auto;padding:24px 16px 60px}
.brand{font-size:clamp(3rem,14vw,5.4rem);font-weight:950;letter-spacing:-.06em;line-height:.9;margin:0}
.kicker{color:var(--accent);font-weight:850;letter-spacing:.08em;text-transform:uppercase;font-size:.8rem}
.lead{font-size:1.2rem;color:var(--muted);max-width:40rem}
.card{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:18px;margin:16px 0}
.grid{display:grid;gap:14px}
@media(min-width:680px){.grid.three{grid-template-columns:repeat(3,1fr)}}
.tile{background:var(--panel2);border:1px solid var(--line);border-radius:15px;padding:16px;min-width:0}
.tile h2,.card h2{margin-top:0}
a.button,button{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:52px;border-radius:12px;padding:11px 16px;
  font:inherit;font-weight:900;text-decoration:none;cursor:pointer
}
a.primary,button.primary{background:var(--accent);color:#111;border:2px solid var(--accent)}
a.secondary,button.secondary{background:transparent;color:#fff;border:2px solid #737b86}
button:focus-visible,a:focus-visible,input:focus-visible{
  outline:4px solid #fff;outline-offset:3px
}
label{display:block;font-weight:850;margin:10px 0 7px}
input{
  width:100%;min-height:52px;border:2px solid #5b626d;border-radius:12px;
  background:#0e1012;color:#fff;padding:10px 12px;font:inherit
}
.small,.muted{color:var(--muted);font-size:.92rem}
.status{border-left:5px solid var(--accent)}
.ok{color:var(--good)} .bad{color:var(--bad)}
.row{padding:14px 0;border-top:1px solid var(--line)}
.row:first-child{border-top:0}
.rowhead{display:flex;justify-content:space-between;gap:10px;align-items:center;flex-wrap:wrap}
.code{
  padding:11px 12px;background:#0e1012;border:1px solid var(--line);border-radius:10px;
  font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.84rem;word-break:break-all
}
.actions{display:grid;gap:9px;margin-top:9px}
@media(min-width:520px){.actions{grid-template-columns:repeat(3,1fr)}}
.result{min-height:70px;white-space:pre-wrap;word-break:break-word}
.big{font-size:clamp(1.5rem,6vw,2.25rem);font-weight:900}
hr{border:0;border-top:1px solid var(--line);margin:24px 0}