:root {
  --forest: #2A5C26;
  --forest-deep: #0E180C;
  --green: #4BAF47;
  --sage: #E3EEE0;
  --danger: #C0392B;
  --border: #dde3d9;
}
* { box-sizing: border-box; }
body {
  font-family: 'Segoe UI', system-ui, sans-serif;
  margin: 0;
  background: #f7f9f6;
  color: #1c2b1a;
}
.topbar {
  background: var(--forest-deep);
  color: #fff;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.topbar a { color: #fff; text-decoration: none; margin-left: 18px; font-size: 14px; }
.topbar .brand { font-weight: 700; font-size: 18px; color: var(--green); }
.container { max-width: 1100px; margin: 0 auto; padding: 24px; }
.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 20px;
}
h1, h2, h3 { color: var(--forest-deep); }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 8px 10px; text-align: left; border-bottom: 1px solid var(--border); font-size: 14px; }
th { color: #567; font-weight: 600; font-size: 12px; text-transform: uppercase; }
.btn {
  display: inline-block;
  background: var(--green);
  color: #fff;
  border: none;
  padding: 9px 16px;
  border-radius: 6px;
  cursor: pointer;
  text-decoration: none;
  font-size: 14px;
}
.btn.secondary { background: #eef1ec; color: var(--forest-deep); }
.btn.danger { background: var(--danger); }
input, select, textarea {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  margin-bottom: 10px;
}
label { font-size: 13px; font-weight: 600; color: #345; display: block; margin-bottom: 4px; }
.flash { padding: 10px 14px; border-radius: 6px; margin-bottom: 14px; font-size: 14px; }
.flash.success { background: #e5f5e0; color: #245c1c; }
.flash.danger { background: #fbe4e1; color: #7d251d; }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; margin-bottom: 20px; }
.stat { background: #fff; border: 1px solid var(--border); border-radius: 10px; padding: 16px; }
.stat .num { font-size: 26px; font-weight: 700; color: var(--forest-deep); }
.stat .label { font-size: 12px; color: #789; text-transform: uppercase; }
.badge { display: inline-block; padding: 3px 9px; border-radius: 20px; font-size: 12px; font-weight: 600; }
.badge.issued { background: #fff3d6; color: #8a6300; }
.badge.paid { background: #e5f5e0; color: #245c1c; }
.badge.overdue { background: #fbe4e1; color: #7d251d; }
.badge.draft { background: #eee; color: #667; }
.line-row { display: grid; grid-template-columns: 3fr 1fr 1fr; gap: 8px; }