* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: system-ui, -apple-system, sans-serif; background: #f2f4f7; color: #1f2933; font-size: 15px; }
.container { max-width: 1100px; margin: 0 auto; padding: 16px; }
a { color: #1d4ed8; text-decoration: none; }

.nav { background: #111827; color: #fff; padding: 10px 16px; display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.nav-brand { font-weight: 700; }
.nav-links { display: flex; gap: 4px; flex-wrap: wrap; }
.nav-links a { color: #cbd5e1; padding: 6px 10px; border-radius: 6px; }
.nav-links a.on, .nav-links a:hover { background: #374151; color: #fff; }

.card { background: #fff; border: 1px solid #e5e7eb; border-radius: 8px; padding: 16px; margin-bottom: 16px; }
.card h2 { font-size: 17px; margin-bottom: 12px; }

.flash { padding: 10px 14px; border-radius: 6px; margin-bottom: 12px; }
.flash-success { background: #dcfce7; color: #166534; }
.flash-error { background: #fee2e2; color: #991b1b; }
.flash-info { background: #dbeafe; color: #1e40af; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid #e5e7eb; vertical-align: middle; }
th { font-size: 12px; text-transform: uppercase; color: #6b7280; }
.table-wrap { overflow-x: auto; }

label { display: block; font-size: 13px; color: #374151; margin-bottom: 4px; }
input, select, textarea { width: 100%; padding: 8px 10px; border: 1px solid #d1d5db; border-radius: 6px; font-size: 14px; background: #fff; }
textarea { resize: vertical; min-height: 60px; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; margin-bottom: 12px; }
.form-grid .full { grid-column: 1 / -1; }

.btn { display: inline-block; padding: 8px 14px; border: none; border-radius: 6px; background: #1d4ed8; color: #fff; font-size: 14px; cursor: pointer; }
.btn:hover { background: #1e40af; }
.btn-sm { padding: 4px 10px; font-size: 13px; }
.btn-danger { background: #dc2626; }
.btn-danger:hover { background: #b91c1c; }
.btn-secondary { background: #6b7280; }
.btn-secondary:hover { background: #4b5563; }
.btn-warn { background: #d97706; }
.btn-warn:hover { background: #b45309; }
.inline-form { display: inline; }

.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; }
.badge-on { background: #dcfce7; color: #166534; }
.badge-off { background: #fee2e2; color: #991b1b; }

.footer { text-align: center; color: #9ca3af; font-size: 12px; padding: 20px 0 30px; }

.login-box { max-width: 380px; margin: 60px auto; }
.login-box h1 { font-size: 20px; margin-bottom: 16px; text-align: center; }
.login-box .btn { width: 100%; margin-top: 8px; }
.login-box label { margin-top: 10px; }

.thumb { max-height: 60px; border-radius: 4px; border: 1px solid #e5e7eb; }
.muted { color: #6b7280; font-size: 13px; }
.actions { display: flex; gap: 6px; flex-wrap: wrap; }