:root {
  --bg-page: #fbfaf8;
  --surface-1: #f6f5f2;
  --border: #e1e0d9;
  --border-success: #b9dfc0;
  --border-warning: #f0d9a8;
  --bg-success: #eaf7ec;
  --bg-warning: #fdf3e0;
  --bg-accent: #eef0fc;
  --text-success: #1a7d34;
  --text-warning: #a5690a;
  --text-accent: #4338ca;
  --text-primary: #232220;
  --text-secondary: #52514e;
  --text-muted: #898781;
  --radius: 8px;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg-page); color: var(--text-primary);
  font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}
main { max-width: 900px; margin: 0 auto; padding: 2rem 1.5rem; }
.topnav {
  display: flex; align-items: center; gap: 1.25rem; padding: 1rem 1.5rem;
  background: #fff; border-bottom: 1px solid var(--border);
}
.topnav a { color: var(--text-secondary); text-decoration: none; font-size: 14px; }
.topnav .brand { font-weight: 600; }
.topnav .spacer { flex: 1; }
.eyebrow { font-size: 13px; color: var(--text-muted); margin: 0; }
h1 { font-size: 18px; font-weight: 500; margin: 4px 0 1.25rem; }
.grid { display: grid; gap: 12px; margin-bottom: 1.25rem; }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(180px,1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(150px,1fr)); }
.card { background: var(--surface-1); border-radius: var(--radius); padding: 1rem; }
.card-outline { border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem; }
.card-outline.success { border-color: var(--border-success); background: var(--bg-success); }
.kpi-label { font-size: 13px; color: var(--text-secondary); margin: 0 0 6px; }
.kpi-value, .value { font-size: 22px; font-weight: 500; margin: 0; }
.muted { font-size: 12px; color: var(--text-muted); }
.banner { border-radius: 12px; padding: 1rem 1.25rem; margin-bottom: 1.25rem; }
.banner.success { background: var(--bg-success); border: 1px solid var(--border-success); }
.banner.warning { background: var(--bg-warning); border: 1px solid var(--border-warning); }
.banner .title { font-weight: 500; margin: 0; }
.banner .body { font-size: 13px; margin: 4px 0 0; }
.dre-table { border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.dre-row { display: flex; justify-content: space-between; padding: 10px 16px; font-size: 14px; }
.dre-row.indent { padding-left: 28px; font-size: 13px; }
.dre-row.negative { color: #c23934; }
.dre-row.accent { color: var(--text-accent); }
.dre-row.subtotal { background: var(--surface-1); font-weight: 500; }
.dre-row.final { background: var(--bg-success); color: var(--text-success); font-weight: 500; }

/* login */
.auth-page { display: flex; align-items: center; justify-content: center; height: 100vh; }
.auth-card { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 2rem; width: 320px; display: flex; flex-direction: column; gap: 12px; }
.auth-card label { font-size: 13px; color: var(--text-secondary); display: flex; flex-direction: column; gap: 4px; }
.auth-card input { padding: 8px 10px; border: 1px solid var(--border); border-radius: 6px; font-size: 14px; }
.auth-card button { padding: 10px; border: none; border-radius: 6px; background: var(--text-accent); color: #fff; font-size: 14px; cursor: pointer; }
.auth-card .error { color: #c23934; font-size: 13px; }