:root { --bg:#0b1020; --fg:#e7e9ee; --muted:#9aa3b2; --card:#151b2f; --accent:#6ea8ff; }
*{box-sizing:border-box}
body{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial;background:var(--bg);color:var(--fg)}
.container{max-width:900px;margin:32px auto;padding:0 16px}
h1{font-weight:700}
.muted{color:var(--muted)}
.card{background:var(--card);padding:16px;border-radius:12px;margin:16px 0;box-shadow:0 10px 30px rgba(0,0,0,.25)}
.row{display:flex;gap:8px;align-items:center;margin:8px 0;flex-wrap:wrap}
input[type="text"]{background:#0d1326;color:var(--fg);border:1px solid #2c3556;border-radius:8px;padding:8px 10px;min-width:260px}
button{background:var(--accent);color:#0b1020;border:0;border-radius:8px;padding:8px 12px;font-weight:600;cursor:pointer}
button:hover{filter:brightness(1.1)}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;white-space:pre-wrap;word-break:break-word}