body { font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif; margin: 0; background: #f6f7f9; color: #222; }
.container { max-width: 1100px; margin: 30px auto; background: #fff; padding: 24px; border-radius: 8px; box-shadow: 0 10px 24px rgba(0,0,0,.06); }
.topnav { display:flex; align-items:center; gap:16px; padding: 12px 16px; background:#111827; color:#fff; }
.topnav a { color:#fff; text-decoration:none; opacity:.9; }
.topnav a:hover { opacity:1; }
.topnav .spacer { flex:1; }
.topnav .user { opacity:.75; margin-right: 8px; }
h1 { margin-top: 0; }
table { width: 100%; border-collapse: collapse; margin-top: 12px; }
th, td { text-align: left; border-bottom: 1px solid #eaecef; padding: 8px 10px; font-size: 14px; }
tr:hover { background:#fafafa; }
input[type=text], input[type=password], input[type=email], select, textarea { width: 100%; padding: 10px; border: 1px solid #d0d7de; border-radius: 6px; background: #fff; }
button, .btn { display:inline-block; padding:10px 14px; border-radius: 6px; border:1px solid #111827; background:#111827; color:#fff; cursor:pointer; text-decoration:none; }
.btn.secondary { background:#fff; color:#111827; }
.form-row { display:flex; gap:12px; }
.form-row > div { flex:1; }
.alert { padding: 10px 12px; border-radius: 6px; margin: 12px 0; }
.alert.error { background: #fee2e2; color:#991b1b; border:1px solid #fecaca; }
.alert.success { background: #dcfce7; color:#166534; border:1px solid #bbf7d0; }
.code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace; }
.note { font-size: 12px; color:#6b7280; }
.centered { max-width: 420px; margin: 12vh auto; }
.footer { font-size:12px; opacity:.7; margin-top:20px; }
hr { border: 0; border-top: 1px solid #eee; margin: 20px 0; }