body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;margin:0;background:#f5f7fb;color:#111}
header{background:#1f2937;color:#fff;padding:14px 20px;display:flex;justify-content:space-between;align-items:center}
nav a{color:#cfe3ff;margin-left:14px;text-decoration:none}
main{padding:20px;max-width:1100px;margin:auto}
table{width:100%;border-collapse:collapse;background:#fff}
th,td{border:1px solid #ddd;padding:8px;text-align:left;font-size:14px}
pre{background:#0b1020;color:#d8def5;padding:12px;overflow:auto;white-space:pre-wrap}
pre.md{background:#fff;color:#111;border:1px solid #ddd}
textarea,input{width:100%;padding:8px;margin:6px 0 12px;border:1px solid #ccc;border-radius:6px}
button{background:#2563eb;color:#fff;border:none;padding:10px 14px;border-radius:6px;cursor:pointer}
.flash{list-style:none;padding:0}.flash li{background:#dcfce7;border:1px solid #86efac;padding:8px;border-radius:6px;margin-bottom:8px}
.card{background:#fff;border:1px solid #ddd;border-radius:8px;padding:10px;margin:10px 0}