:root {
  --bg: #f5f7fb;
  --bg-elev-1: #ffffff;
  --bg-elev-2: #eef2f7;
  --fg: #1f2933;
  --fg-dim: #52606d;
  --accent: #3b82f6;
  --accent-fg: #ffffff;
  --border: #d9e2ec;
  --danger: #b91c1c;
  --success: #047857;
  --radius: 8px;
  --shadow-1: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow-2: 0 4px 12px rgba(15, 23, 42, 0.08);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
  display: flex;
  align-items: center;
  padding: 12px 24px;
  background: var(--bg-elev-1);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-1);
}

.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 18px; color: var(--fg); }
.brand:hover { text-decoration: none; }
.brand-mark { font-size: 22px; line-height: 1; }
.brand-name { letter-spacing: -0.01em; }

.topbar-right {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-left: auto;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 500;
  background: var(--bg-elev-1);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background .15s, border-color .15s;
}
.btn:hover { background: var(--bg-elev-2); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn.icon-only {
  padding: 6px;
  width: 36px;
  height: 36px;
  background: transparent;
}
.btn.icon-only svg { width: 20px; height: 20px; }
.btn.icon-only:hover { background: var(--bg-elev-2); border-color: var(--accent); }

.btn-primary {
  background: var(--accent);
  color: var(--accent-fg);
  border-color: var(--accent);
}
.btn-primary:hover { background: #2563eb; border-color: #2563eb; }

.btn-ghost {
  background: transparent;
  border-color: transparent;
}

.btn-lg { padding: 12px 20px; font-size: 15px; }

main { max-width: 1080px; margin: 0 auto; padding: 32px 24px 64px; }

.hero { padding: 48px 0 32px; }
.hero h1 { margin: 0 0 16px; font-size: 40px; letter-spacing: -0.02em; }
.hero .lede { font-size: 18px; line-height: 1.6; color: var(--fg-dim); max-width: 720px; }
.hero .cta-row { margin-top: 24px; display: flex; gap: 12px; }

.how, .trust { margin-top: 48px; }
.how h2, .trust h2 { font-size: 22px; margin: 0 0 16px; }
.steps { padding-left: 18px; line-height: 1.7; color: var(--fg-dim); }
.steps strong { color: var(--fg); }
.trust ul { padding-left: 18px; line-height: 1.7; color: var(--fg-dim); }
.trust code { background: var(--bg-elev-2); padding: 1px 6px; border-radius: 4px; font-size: 13px; }

.dashboard-head h1 { margin: 0 0 4px; font-size: 28px; }
.muted { color: var(--fg-dim); font-size: 14px; }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin: 24px 0 40px;
}

.card {
  background: var(--bg-elev-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow-1);
}
.card h2 { margin: 0 0 8px; font-size: 16px; }
.card p { margin: 0 0 16px; color: var(--fg-dim); font-size: 14px; line-height: 1.5; }
.card .btn + .btn { margin-left: 8px; }

.status-row h2 { font-size: 18px; margin: 0 0 8px; }

.review .alert-list {
  background: var(--bg-elev-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-top: 16px;
}

/* ---- Topbar nav + tenant switcher ---- */

.topnav {
  display: flex;
  gap: 4px;
  margin-left: 32px;
  align-items: center;
}
.topnav-link {
  padding: 8px 12px;
  font-size: 14px;
  font-weight: 500;
  color: var(--fg-dim);
  border-radius: 6px;
}
.topnav-link:hover { background: var(--bg-elev-2); text-decoration: none; }
.topnav-link.active { color: var(--accent); background: rgba(59, 130, 246, 0.08); }

.tenant-switcher { position: relative; }
.tenant-switcher summary {
  list-style: none;
  cursor: pointer;
}
.tenant-switcher summary::-webkit-details-marker { display: none; }
.tenant-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
}
.tenant-chip svg { width: 14px; height: 14px; }
.tenant-chip.static { cursor: default; }
.tenant-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 220px;
  background: var(--bg-elev-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-2);
  padding: 6px;
  display: flex;
  flex-direction: column;
  z-index: 30;
}
.tenant-menu-item {
  text-align: left;
  background: transparent;
  border: none;
  padding: 8px 10px;
  font-size: 14px;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  color: var(--fg);
}
.tenant-menu-item:hover { background: var(--bg-elev-2); text-decoration: none; }
.tenant-menu-item.active { color: var(--accent); font-weight: 600; }
.tenant-menu-item small { color: var(--fg-dim); font-size: 12px; }
.tenant-menu-item.add { color: var(--accent); margin-top: 4px; border-top: 1px solid var(--border); padding-top: 10px; }

/* ---- Page chrome ---- */

.page-head { margin: 0 0 24px; }
.page-head h1 { margin: 0 0 4px; font-size: 26px; }
.row-between { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.row-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  margin: 16px 0;
  font-size: 14px;
}
.alert.success { background: #ecfdf5; color: var(--success); border: 1px solid #a7f3d0; }
.alert.error { background: #fee2e2; color: var(--danger); border: 1px solid #fecaca; }

/* ---- Forms ---- */

.form { display: flex; flex-direction: column; gap: 16px; max-width: 720px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field-label { font-size: 13px; font-weight: 600; color: var(--fg); }
.field-help { font-size: 12px; color: var(--fg-dim); }
.field input[type=text],
.field input[type=url],
.field input[type=password],
.field input[type=email],
.field select,
.field textarea {
  padding: 8px 12px;
  font-size: 14px;
  font-family: inherit;
  background: var(--bg-elev-1);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 6px;
  width: 100%;
}
.field code { background: var(--bg-elev-2); padding: 1px 4px; border-radius: 3px; }
.field textarea { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; resize: vertical; }
.inline-check { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; color: var(--fg-dim); }

.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn.danger {
  color: var(--danger);
  border-color: rgba(185, 28, 28, 0.3);
}
.btn.danger:hover { background: #fee2e2; }

/* ---- Metrics + cards ---- */

.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin: 16px 0 32px;
}
.metric {
  display: block;
  padding: 18px 16px;
  background: var(--bg-elev-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-align: left;
  color: var(--fg);
}
.metric:hover { text-decoration: none; box-shadow: var(--shadow-2); border-color: var(--accent); }
.metric .metric-value { font-size: 28px; font-weight: 700; }
.metric .metric-label { font-size: 12px; color: var(--fg-dim); text-transform: uppercase; letter-spacing: 0.04em; margin-top: 4px; }
.metric.danger .metric-value { color: var(--danger); }

.next-steps { background: var(--bg-elev-1); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; margin: 24px 0; }
.next-steps h2 { margin: 0 0 12px; font-size: 18px; }

/* ---- Runs table ---- */

.runs h2 { margin-top: 32px; font-size: 18px; }
.runs-table { width: 100%; border-collapse: collapse; background: var(--bg-elev-1); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.runs-table th, .runs-table td { padding: 10px 14px; text-align: left; font-size: 13px; border-bottom: 1px solid var(--border); }
.runs-table th { background: var(--bg-elev-2); font-weight: 600; color: var(--fg-dim); text-transform: uppercase; font-size: 11px; letter-spacing: 0.04em; }
.runs-table tr:last-child td { border-bottom: none; }
.small { font-size: 12px; }

.status {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
}
.status-ok { background: #ecfdf5; color: var(--success); }
.status-running { background: #eff6ff; color: var(--accent); }
.status-failed { background: #fee2e2; color: var(--danger); }

.kind-tag {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  background: var(--bg-elev-2);
  color: var(--fg-dim);
  margin-right: 6px;
}
.kind-tag.gmail { background: #fef3c7; color: #92400e; }
.kind-tag.ical { background: #ede9fe; color: #5b21b6; }
.kind-tag.airtable { background: #fae8ff; color: #6b21a8; }
.kind-tag.webhook { background: #dbeafe; color: #1e40af; }
.kind-tag.sheets { background: #d1fae5; color: #065f46; }

/* ---- Source cards ---- */

.page > section { margin-bottom: 32px; }
.page h2 { font-size: 18px; margin: 0 0 12px; }

.card {
  background: var(--bg-elev-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow-1);
  margin-bottom: 16px;
}

.connect-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.connect-form { display: flex; flex-direction: column; gap: 8px; padding: 12px; background: var(--bg-elev-2); border-radius: 6px; }
.connect-form input { padding: 8px 12px; font-size: 13px; border: 1px solid var(--border); border-radius: 6px; }

.source-list, .schema-list, .dest-list { display: flex; flex-direction: column; gap: 10px; }
.source-card { background: var(--bg-elev-1); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px 16px; }
.source-card.disabled { opacity: 0.6; }
.source-card summary {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  list-style: none;
  font-size: 14px;
}
.source-card summary::-webkit-details-marker { display: none; }
.source-label { font-weight: 600; flex: 1; }
.source-status { font-size: 11px; padding: 2px 8px; border-radius: 999px; }
.source-status.on { background: #ecfdf5; color: var(--success); }
.source-status.off { background: var(--bg-elev-2); color: var(--fg-dim); }
.source-body { margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--border); display: flex; flex-direction: column; gap: 16px; }
.source-meta { font-size: 13px; color: var(--fg-dim); }
.source-meta code { background: var(--bg-elev-2); padding: 1px 6px; border-radius: 3px; font-size: 12px; }
.source-schema-form { display: flex; gap: 12px; align-items: end; }
.source-schema-form .field { flex: 1; }
.rules-editor summary { cursor: pointer; font-size: 13px; font-weight: 600; color: var(--fg-dim); padding: 4px 0; }
.rules-form { display: flex; flex-direction: column; gap: 12px; padding-top: 12px; }
.source-actions { display: flex; gap: 8px; padding-top: 8px; border-top: 1px solid var(--border); }

/* ---- Schema editor ---- */

.fields-editor { margin-top: 8px; }
.fields-editor h3 { font-size: 14px; margin: 0 0 8px; }
.fields-table { width: 100%; border-collapse: collapse; margin-bottom: 8px; font-size: 13px; }
.fields-table th, .fields-table td { padding: 6px 8px; text-align: left; border-bottom: 1px solid var(--border); }
.fields-table th { font-size: 11px; color: var(--fg-dim); text-transform: uppercase; }
.fields-table input[type=text], .fields-table select { padding: 4px 8px; font-size: 13px; border: 1px solid var(--border); border-radius: 4px; width: 100%; }
.schema-card summary { display: flex; gap: 12px; align-items: center; cursor: pointer; list-style: none; }
.schema-card summary::-webkit-details-marker { display: none; }
.schema-name { font-weight: 600; }

/* ---- Destinations ---- */

.dest-card { padding: 14px 18px; }
.dest-actions { display: flex; gap: 8px; }

/* ---- Alerts (review queue) ---- */

.filter-row { display: flex; gap: 16px; align-items: center; margin-bottom: 16px; }
.alert-card {
  background: var(--bg-elev-1);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-bottom: 10px;
}
.alert-card.resolved { opacity: 0.55; border-left-color: var(--success); }
.alert-card.open { border-left-color: var(--danger); }
.alert-head { display: flex; gap: 12px; align-items: baseline; flex-wrap: wrap; }
.alert-kind { font-size: 11px; font-weight: 700; text-transform: uppercase; padding: 2px 8px; border-radius: 999px; background: var(--bg-elev-2); color: var(--fg-dim); }
.alert-kind.kind-missing_field { background: #fef3c7; color: #92400e; }
.alert-kind.kind-low_confidence { background: #fef3c7; color: #92400e; }
.alert-kind.kind-extraction_error { background: #fee2e2; color: var(--danger); }
.alert-kind.kind-destination_error { background: #fee2e2; color: var(--danger); }
.alert-summary { flex: 1; }
.alert-card details { margin-top: 8px; }
.alert-card pre { background: var(--bg-elev-2); padding: 12px; border-radius: 6px; font-size: 12px; overflow: auto; max-height: 240px; }
.alert-actions { margin-top: 10px; display: flex; gap: 8px; align-items: center; }

/* ---- Onboarding ---- */

.onboarding { max-width: 480px; margin: 40px auto; }
.onboarding header h1 { margin: 0 0 8px; font-size: 28px; }
.onboarding .form { margin-top: 24px; }

/* ---- Paywall banner ---- */

.paywall-banner {
  background: #fef3c7;
  border-bottom: 1px solid #fde68a;
  color: #92400e;
  padding: 10px 24px;
  font-size: 13px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
}
.paywall-banner a { color: #b45309; font-weight: 600; }
.paywall-banner .btn-primary { color: var(--accent-fg); }

.topnav-link.cta {
  color: var(--accent);
  font-weight: 700;
  background: rgba(59, 130, 246, 0.1);
}

/* ---- Upgrade page ---- */

.upgrade-page { max-width: 880px; margin: 32px auto; padding: 0 24px; }
.upgrade-page > header h1 { margin: 0 0 4px; font-size: 28px; }

.plans {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin: 32px 0;
}
.plan {
  background: var(--bg-elev-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  position: relative;
}
.plan.featured { border-color: var(--accent); box-shadow: 0 8px 28px rgba(59, 130, 246, 0.15); }
.plan-badge {
  position: absolute;
  top: 12px;
  right: 16px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  background: var(--accent);
  color: var(--accent-fg);
  padding: 4px 10px;
  border-radius: 999px;
}
.plan-name { font-size: 14px; color: var(--fg-dim); text-transform: uppercase; letter-spacing: 0.04em; }
.plan-price { font-size: 36px; font-weight: 700; margin: 8px 0; }
.plan-price .plan-suffix { font-size: 16px; font-weight: 500; color: var(--fg-dim); }
.plan-equivalent { font-size: 13px; color: var(--fg-dim); margin-bottom: 12px; }
.plan-points { padding-left: 18px; color: var(--fg-dim); line-height: 1.7; font-size: 14px; margin: 16px 0 24px; }
.footer-note { text-align: center; margin-top: 24px; }

@media (max-width: 700px) {
  .plans { grid-template-columns: 1fr; }
}