:root{--bg:#0f1115;--fg:#e8eaee;--muted:#9aa3af;--ring:#2a2f3a;--card:#171a21}
*{box-sizing:border-box}html,body{margin:0}
body{font-family:system-ui,Segoe UI,Roboto,Arial;background:var(--bg);color:var(--fg)}
.wrap{max-width:800px;margin:32px auto;padding:0 16px}
h1{margin:0 0 16px}
label{display:block;margin:12px 0}
input{width:100%;padding:10px;border:1px solid var(--ring);border-radius:10px;background:#11161c;color:var(--fg)}
.row{display:flex;gap:8px;align-items:center;margin:12px 0}
button{padding:10px 14px;border:1px solid var(--ring);background:transparent;color:var(--fg);border-radius:10px;cursor:pointer}
button:active{transform:translateY(1px)}
.tag{font-size:12px;color:var(--muted);border:1px solid var(--ring);padding:4px 8px;border-radius:999px}
.cards{display:grid;grid-template-columns:1fr;gap:12px;margin-top:12px}
@media(min-width:720px){.cards{grid-template-columns:1fr 1fr}}
.card{background:var(--card);border:1px solid var(--ring);border-radius:14px;padding:12px}
pre{white-space:pre-wrap;margin:8px 0 0}
footer{margin:16px 0;color:var(--muted);font-size:12px}