body { font-family: system-ui, sans-serif; padding: 2rem; max-width: 1000px; margin: 0 auto; background: #fafafa; color: #222; }
h1, h2 { color: #1976d2; }
h3 { font-size: 16px; margin: 1.5rem 0 .4rem; }
a { color: #1976d2; }
.card { background: #fff; border: 1px solid #e0e0e0; border-radius: 10px; padding: 16px; margin: 12px 0; }
table { border-collapse: collapse; width: 100%; font-size: 13px; margin-top: 8px; }
th, td { border: 1px solid #eee; padding: 7px 10px; text-align: left; }
th { background: #f5f5f5; }
.btn { display: inline-block; padding: 8px 16px; border-radius: 6px; text-decoration: none; font-weight: 500; font-size: 13px; margin: 3px 3px 3px 0; border: none; cursor: pointer; }
.primary { background: #1976d2; color: #fff; } .primary:hover { background: #1565c0; }
.danger  { background: #c62828; color: #fff; } .danger:hover  { background: #b71c1c; }
.gray    { background: #666;    color: #fff; } .gray:hover    { background: #555; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 20px; font-size: 11px; background: #e3f2fd; color: #1565c0; font-weight: 500; }
.badge.warn { background: #fff8e1; color: #e65100; }
.badge.ok   { background: #e8f5e9; color: #2e7d32; }
.badge.err  { background: #ffebee; color: #c62828; }
.ok  { color: #2e7d32; } .err { color: #c62828; } .muted { color: #888; font-size: 12px; }
label { display: block; margin: 10px 0 4px; font-weight: 500; font-size: 13px; }
input[type=text], input[type=email], input[type=password], select { width: 100%; padding: 8px 10px; border: 1px solid #ddd; border-radius: 6px; font-size: 14px; box-sizing: border-box; }
.topbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
.topbar a { margin-left: 12px; font-size: 13px; }