:root {
  --bg: #fafaf7;
  --fg: #1a1a1a;
  --muted: #888;
  --card: #fff;
  --border: #e0ddd5;
  --accent: #a86a1d;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
  font-size: 14px;
  line-height: 1.5;
}

/* Login overlay */
#login-overlay {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--bg);
}
#login-form {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 36px 32px;
  width: 320px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.06);
}
#login-form h2 { margin: 0; font-size: 22px; }
.login-sub { margin: 0 0 8px 0; color: var(--muted); font-size: 13px; }
#login-form input {
  padding: 11px 13px; border: 1px solid var(--border); border-radius: 6px;
  font-size: 14px; font-family: inherit;
}
#login-form input:focus { outline: none; border-color: var(--accent); }
#login-btn {
  padding: 11px; background: var(--fg); color: #fff; border: none; border-radius: 6px;
  font-size: 14px; font-weight: 600; cursor: pointer; font-family: inherit;
}
#login-btn:hover { background: #000; }
#login-btn:disabled { opacity: 0.6; cursor: default; }
#login-error { color: #b00020; font-size: 13px; min-height: 16px; text-align: center; }
#logout-btn {
  margin-left: 12px; background: #2a2a2a; color: #fff; border: 1px solid #444;
  padding: 6px 12px; border-radius: 4px; font-size: 12px; cursor: pointer; font-family: inherit;
}
#logout-btn:hover { background: #3a3a3a; }

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 32px;
  background: var(--fg);
  color: #fff;
}
header h1 { margin: 0; font-size: 20px; font-weight: 700; letter-spacing: -0.2px; }
.account-switcher label { color: #aaa; margin-right: 8px; font-size: 13px; }
.account-switcher select {
  background: #2a2a2a; color: #fff; border: 1px solid #444; padding: 6px 12px; border-radius: 4px;
  font-family: inherit; font-size: 13px;
}

main { padding: 24px 32px; max-width: 1200px; margin: 0 auto; }

.metrics-row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}
.kpi {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 16px 18px;
  display: flex; flex-direction: column;
}
.kpi-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--muted);
  margin-bottom: 6px;
}
.kpi-value { font-size: 22px; font-weight: 700; }

.chart-block {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 20px 24px;
  margin-bottom: 24px;
}
.chart-block h2 {
  margin: 0 0 16px 0;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--muted);
}
canvas { max-height: 320px; }

/* AI insights */
.ai-block { border-left: 3px solid var(--accent); }
.ai-empty { color: var(--muted); }
.ai-headline { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.ai-summary { font-size: 14px; color: #333; margin-bottom: 14px; max-width: 70ch; }
.ai-meta { display: flex; gap: 24px; flex-wrap: wrap; font-size: 13px; color: #444; margin-bottom: 18px; padding-bottom: 14px; border-bottom: 1px solid var(--border); }
.ai-meta strong { color: var(--fg); }
.ai-recs { display: flex; flex-direction: column; gap: 12px; }
.ai-rec { display: flex; gap: 12px; align-items: flex-start; }
.ai-prio { flex-shrink: 0; color: #fff; font-size: 10px; text-transform: uppercase; letter-spacing: 0.5px; font-weight: 700; padding: 3px 8px; border-radius: 10px; min-width: 46px; text-align: center; }
.ai-rec-title { font-weight: 600; font-size: 14px; }
.ai-rec-why { font-size: 13px; color: #555; margin: 2px 0; }
.ai-rec-impact { font-size: 12px; color: var(--accent); }
.ai-generated { margin-top: 16px; font-size: 11px; color: var(--muted); }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th {
  text-align: left;
  font-weight: 600;
  background: var(--bg);
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--muted);
}
td { padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
td a { color: var(--fg); text-decoration: none; }
td a:hover { color: var(--accent); text-decoration: underline; }

footer {
  display: flex;
  justify-content: space-between;
  padding: 20px 32px;
  font-size: 12px;
  color: var(--muted);
  border-top: 1px solid var(--border);
  margin-top: 32px;
}