* { box-sizing: border-box; }
body {
    font-family: -apple-system, Segoe UI, Arial, sans-serif;
    margin: 0;
    background: #f7f7f8;
    color: #1f2328;
}
nav {
    background: #1f2937;
    padding: 12px 24px;
    display: flex;
    gap: 20px;
    align-items: center;
}
nav a {
    color: #e5e7eb;
    text-decoration: none;
    font-size: 14px;
}
nav a.active, nav a:hover {
    color: #fff;
    font-weight: 600;
}
nav .spacer { flex: 1; }
main {
    max-width: 1100px;
    margin: 24px auto;
    padding: 0 16px;
}
h1 { font-size: 20px; }
table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    box-shadow: 0 1px 3px rgba(0,0,0,.08);
}
th, td {
    padding: 8px 10px;
    border-bottom: 1px solid #e5e7eb;
    text-align: left;
    font-size: 14px;
}
th { background: #f3f4f6; }
tr:hover td { background: #fafafa; }
.search-box {
    margin-bottom: 16px;
    display: flex;
    gap: 8px;
}
.search-box input[type=text] {
    flex: 1;
    padding: 8px;
    border: 1px solid #d1d5db;
    border-radius: 4px;
}
button, .btn {
    padding: 8px 14px;
    border: none;
    border-radius: 4px;
    background: #2563eb;
    color: #fff;
    cursor: pointer;
    font-size: 14px;
}
button:hover, .btn:hover { background: #1d4ed8; }
.btn.secondary { background: #6b7280; }
.btn.secondary:hover { background: #4b5563; }
.tag {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 12px;
    background: #e5e7eb;
}
.tag.on { background: #dcfce7; color: #166534; }
.tag.off { background: #fee2e2; color: #991b1b; }
pre.log {
    background: #111827;
    color: #d1d5db;
    padding: 12px;
    overflow-x: auto;
    max-height: 500px;
    font-size: 13px;
}
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
}
.login-form {
    background: #fff;
    padding: 32px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,.1);
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 280px;
}
.login-form label { font-size: 14px; display: flex; flex-direction: column; gap: 4px; }
.login-form input { padding: 8px; border: 1px solid #d1d5db; border-radius: 4px; }
.error { color: #991b1b; font-size: 13px; }
.flash { padding: 10px; border-radius: 4px; margin-bottom: 12px; font-size: 14px; }
.flash.success { background: #dcfce7; color: #166534; }
.flash.error { background: #fee2e2; color: #991b1b; }