:root {
  --accent: #16a34a;
  --accent-dark: #15803d;
  --ink: #0f172a;
  --muted: #64748b;
  --line: #e2e8f0;
  --bg: #f1f5f9;
  --card: #ffffff;
  --good: #16a34a;
}

* { box-sizing: border-box; }

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

.sheet {
  max-width: 640px;
  margin: 32px auto;
  background: var(--card);
  border-radius: 16px;
  box-shadow: 0 10px 40px rgba(15, 23, 42, 0.08);
  overflow: hidden;
}

/* Header */
.head {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff;
  padding: 28px 32px;
}
.head .brand {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.9;
}
.head h1 {
  margin: 6px 0 2px;
  font-size: 24px;
  line-height: 1.2;
}
.head .sub {
  font-size: 14px;
  opacity: 0.92;
}
.head .site {
  color: #fff;
  text-decoration: none;
  border-bottom: 1px solid rgba(255,255,255,0.5);
}

.body { padding: 24px 32px 8px; }

.greeting { font-size: 15px; color: var(--ink); margin: 8px 0 20px; }

/* Sections */
section { margin: 0 0 22px; }
section > h2 {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 12px;
}

/* Metric grid */
.metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.metric {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px 16px;
}
.metric .label { font-size: 12px; color: var(--muted); }
.metric .value { font-size: 22px; font-weight: 700; margin-top: 2px; }
.metric .value small { font-size: 13px; font-weight: 600; color: var(--muted); }
.trend { font-size: 12px; color: var(--good); font-weight: 600; }

.ok { color: var(--good); font-weight: 700; }

ul.list { margin: 0; padding-left: 18px; }
ul.list li { margin: 6px 0; font-size: 14px; }

/* Suggestion callout */
.callout {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-left: 4px solid var(--accent);
  border-radius: 10px;
  padding: 14px 16px;
  font-size: 14px;
}
.callout .tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-dark);
  margin-bottom: 4px;
}

/* Footer / CTA */
.foot {
  border-top: 1px solid var(--line);
  padding: 20px 32px 28px;
  font-size: 14px;
  color: var(--muted);
}
.foot strong { color: var(--ink); }
.foot .sign { margin-top: 14px; color: var(--ink); }

.chips { font-size: 0; margin-top: 4px; }

@media (max-width: 480px) {
  .sheet { margin: 0; border-radius: 0; }
  .metrics { grid-template-columns: 1fr; }
  .head, .body, .foot { padding-left: 20px; padding-right: 20px; }
}

/* Print / PDF friendly */
@media print {
  body { background: #fff; }
  .sheet { box-shadow: none; margin: 0; max-width: 100%; }
  .no-print { display: none !important; }
}