* { box-sizing: border-box; }
body { margin: 0; background: #f6f7f9; color: #172033; font: 15px/1.5 system-ui, -apple-system, Segoe UI, sans-serif; }
a { color: #1d4ed8; text-decoration: none; }
button, input, textarea, select { font: inherit; }
.shell { max-width: 1180px; margin: 0 auto; padding: 24px; }
.topbar { background: #111827; color: #fff; }
.topbar .shell { display: flex; align-items: center; gap: 18px; padding-top: 14px; padding-bottom: 14px; }
.brand { color: #fff; font-weight: 700; letter-spacing: .02em; }
.nav { display: flex; flex-wrap: wrap; gap: 12px; margin-left: auto; }
.nav a, .nav button { color: #d1d5db; background: none; border: 0; padding: 0; cursor: pointer; }
.nav a:hover, .nav button:hover { color: #fff; }
.grid { display: grid; gap: 18px; }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.panel, .card { background: #fff; border: 1px solid #e5e7eb; border-radius: 8px; padding: 18px; }
.card { display: grid; gap: 10px; }
.muted { color: #667085; }
.status { display: inline-flex; align-items: center; border-radius: 999px; padding: 4px 9px; background: #eef2ff; color: #3730a3; font-size: 12px; font-weight: 700; text-transform: uppercase; }
.status.published, .ok { background: #dcfce7; color: #166534; }
.status.paused, .bad { background: #fee2e2; color: #991b1b; }
.status.testing { background: #fef3c7; color: #92400e; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.btn { border: 1px solid #111827; background: #111827; color: #fff; border-radius: 6px; padding: 9px 12px; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; min-height: 40px; }
.btn.secondary { background: #fff; color: #111827; border-color: #d1d5db; }
.btn.danger { background: #991b1b; border-color: #991b1b; }
.btn:disabled { opacity: .55; cursor: not-allowed; }
label { display: grid; gap: 6px; font-weight: 650; }
input, textarea, select { width: 100%; border: 1px solid #cbd5e1; border-radius: 6px; padding: 10px 11px; background: #fff; color: #111827; }
textarea { min-height: 110px; resize: vertical; }
table { width: 100%; border-collapse: collapse; background: #fff; }
th, td { text-align: left; padding: 11px; border-bottom: 1px solid #e5e7eb; vertical-align: top; }
th { color: #475467; font-size: 13px; }
.notice { margin-bottom: 16px; padding: 12px 14px; border-radius: 8px; background: #ecfdf5; color: #166534; }
.errors { margin-bottom: 16px; padding: 12px 14px; border-radius: 8px; background: #fef2f2; color: #991b1b; }
.chat { display: grid; gap: 12px; }
.bubble { max-width: 760px; padding: 12px 14px; border-radius: 8px; background: #eef2ff; }
.bubble.user { margin-left: auto; background: #111827; color: #fff; }
.refs { margin-top: 8px; color: #475467; font-size: 13px; }
.checklist { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.checklist li { display: flex; gap: 8px; align-items: center; }
.auth { max-width: 560px; margin: 40px auto; }
.widget-body { background: #fff; margin: 0; min-height: 100vh; }
.widget-shell { display: grid; grid-template-rows: auto 1fr auto; min-height: 100vh; }
.widget-header { padding: 14px 16px; color: #fff; font-weight: 700; }
.widget-messages { padding: 14px; display: grid; gap: 10px; align-content: start; overflow: auto; }
.widget-input { border-top: 1px solid #e5e7eb; padding: 12px; display: grid; gap: 8px; }
.widget-feedback { display: flex; gap: 8px; margin-top: 10px; color: #475467; font-size: 13px; }
.widget-feedback button { border: 1px solid #d0d5dd; background: #fff; border-radius: 6px; padding: 5px 8px; cursor: pointer; }
.widget-feedback button:hover { background: #f2f4f7; }
@media (max-width: 800px) {
  .grid.two, .grid.three { grid-template-columns: 1fr; }
  .topbar .shell { display: grid; }
  .nav { margin-left: 0; }
}