*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --border: #2a2d3a;
  --accent: #4f8ef7;
  --green: #22c55e;
  --yellow: #eab308;
  --red: #ef4444;
  --text: #e2e8f0;
  --muted: #64748b;
  --font: 'Inter', system-ui, sans-serif;
}

body { background: var(--bg); color: var(--text); font-family: var(--font); font-size: 14px; }

.hidden { display: none !important; }

header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px; border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.brand { font-size: 16px; font-weight: 700; letter-spacing: 0.02em; }
.brand span { font-weight: 400; color: var(--muted); }
.header-right { display: flex; align-items: center; gap: 12px; }

main { padding: 24px; max-width: 1200px; margin: 0 auto; }

.page-header { margin-bottom: 24px; }
.page-header h2 { font-size: 18px; font-weight: 700; margin-bottom: 6px; }
.muted { color: var(--muted); font-size: 13px; }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 24px; }
.card.center { text-align: center; max-width: 400px; margin: 80px auto; }
.card.center h2 { margin-bottom: 20px; font-size: 18px; }

.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px; border-radius: 6px; border: none;
  font-size: 13px; font-weight: 500; cursor: pointer; transition: opacity .15s;
}
.btn:hover { opacity: .85; }
.btn:disabled { opacity: .4; cursor: not-allowed; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-secondary { background: var(--border); color: var(--text); }
.btn-sm { padding: 5px 10px; font-size: 12px; background: var(--border); color: var(--text); }
.btn-danger { background: #7f1d1d; color: #fca5a5; }

/* Account cards */
.accounts-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px; margin-top: 8px;
}
.account-card {
  background: var(--surface); border: 2px solid var(--border);
  border-radius: 10px; padding: 18px 20px; cursor: pointer;
  transition: border-color .15s, background .15s;
}
.account-card:hover { border-color: var(--accent); }
.account-card.selected { border-color: var(--accent); background: #1a2540; }
.account-card .acct-name { font-weight: 600; font-size: 14px; margin-bottom: 4px; }
.account-card .acct-id { font-size: 11px; color: var(--muted); }

.loading { display: flex; align-items: center; gap: 10px; color: var(--muted); padding: 24px 0; }

/* Selector bar */
.selector-bar {
  display: flex; gap: 16px; align-items: flex-end; flex-wrap: wrap;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 10px; padding: 16px 20px; margin-bottom: 24px;
}
.account-pill {
  display: flex; align-items: center; gap: 10px;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 6px; padding: 7px 12px; font-size: 13px; font-weight: 500;
}
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 11px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.field.actions { flex-direction: row; align-items: flex-end; gap: 8px; }

select, input[type="text"] {
  background: var(--bg); border: 1px solid var(--border); color: var(--text);
  border-radius: 6px; padding: 7px 10px; font-size: 13px; min-width: 200px;
}
select:disabled { opacity: .5; }

/* Ad set picker */
#adset-picker { display: flex; flex-direction: column; gap: 6px; }
.adset-picker-label { font-size: 11px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.adset-checkboxes { display: flex; flex-wrap: wrap; gap: 8px; }
.adset-check {
  display: flex; align-items: center; gap: 6px;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 6px; padding: 5px 10px; font-size: 12px;
  cursor: pointer; user-select: none;
}
.adset-check input { accent-color: var(--accent); cursor: pointer; }

/* Results table */
#results-section { margin-bottom: 28px; }
#results-heading { font-size: 15px; font-weight: 600; margin-bottom: 12px; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { text-align: left; padding: 8px 12px; color: var(--muted); font-weight: 500; border-bottom: 1px solid var(--border); font-size: 11px; text-transform: uppercase; letter-spacing: .05em; }
th.sortable { cursor: pointer; user-select: none; }
th.sortable:hover { color: var(--text); }
td { padding: 9px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
tr:last-child td { border-bottom: none; }
.adset-group td { background: var(--surface); }
.statement-cell { max-width: 360px; line-height: 1.5; }
.metric { font-variant-numeric: tabular-nums; }
.tier-1 { color: var(--green); font-weight: 600; }
.tier-2 { color: var(--yellow); }
.tier-3 { color: var(--muted); }
.anti { color: var(--red); }

/* Analysis */
#analysis-section { margin-top: 28px; }
#analysis-section h3 { font-size: 16px; font-weight: 700; margin-bottom: 16px; }

#summary-box {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 8px; padding: 16px 20px; margin-bottom: 20px;
  line-height: 1.7;
}
.ready-yes { border-left: 3px solid var(--green); }
.ready-no  { border-left: 3px solid var(--yellow); }

#belief-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px; margin-bottom: 24px;
}
.belief-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 8px; padding: 14px 16px;
}
.belief-card .b-header { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.belief-card .b-num { font-size: 11px; color: var(--muted); }
.belief-card .b-label { font-size: 13px; font-weight: 600; }
.belief-card .b-signal { font-size: 12px; color: var(--muted); line-height: 1.5; }
.status-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.dot-validated { background: var(--green); }
.dot-partial   { background: var(--yellow); }
.dot-gap       { background: var(--red); }

#top-performers { margin-bottom: 24px; }
#top-performers h4, #gaps-section h4 {
  font-size: 11px; font-weight: 600; margin-bottom: 10px;
  color: var(--muted); text-transform: uppercase; letter-spacing: .05em;
}
.gap-item {
  background: var(--surface); border: 1px solid var(--border);
  border-left: 3px solid var(--red); border-radius: 6px;
  padding: 10px 14px; margin-bottom: 8px; font-size: 13px; line-height: 1.6;
}

/* Clients section */
.form-row { display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; }
.form-row .field { flex: 1; min-width: 160px; }
.clients-table { width: 100%; border-collapse: collapse; font-size: 13px; margin-top: 8px; }
.clients-table th { text-align: left; padding: 8px 12px; color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .05em; border-bottom: 1px solid var(--border); }
.clients-table td { padding: 10px 12px; border-bottom: 1px solid var(--border); }

#auth-status a { color: var(--accent); font-size: 13px; text-decoration: none; }
.spinner { display: inline-block; width: 14px; height: 14px; border: 2px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin .6s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }