:root {
  --primary: #16a34a;
  --primary-dark: #15803d;
  --danger: #dc2626;
  --warning: #d97706;
  --bg: #f4f6f5;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #e5e7eb;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
}

.wrap { max-width: 720px; margin: 0 auto; padding: 16px; }

.topbar {
  background: var(--primary);
  color: #fff;
  padding: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.topbar h1 { font-size: 18px; margin: 0; }
.topbar a { color: #fff; text-decoration: none; font-size: 14px; opacity: .9; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 14px;
}

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 480px) { .grid-2 { grid-template-columns: 1fr; } }

.stat { text-align: center; }
.stat .num { font-size: 26px; font-weight: 700; color: var(--primary-dark); }
.stat .num.alert { color: var(--danger); }
.stat .label { font-size: 13px; color: var(--muted); margin-top: 4px; }

.btn {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 14px 18px;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
}
.btn:active { background: var(--primary-dark); }
.btn.secondary { background: #fff; color: var(--primary-dark); border: 2px solid var(--primary); }
.btn.block { display: block; width: 100%; margin-bottom: 10px; }

.nav-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.nav-grid a {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 12px;
  text-align: center;
  text-decoration: none;
  color: var(--text);
  font-weight: 600;
  font-size: 15px;
}
.nav-grid a .icon { font-size: 28px; display: block; margin-bottom: 8px; }

table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-size: 13px; text-transform: uppercase; }

.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge.ok { background: #dcfce7; color: var(--primary-dark); }
.badge.warn { background: #fef3c7; color: var(--warning); }
.badge.danger { background: #fee2e2; color: var(--danger); }

label { display: block; font-size: 14px; font-weight: 600; margin: 12px 0 6px; }
input[type=text], input[type=number], input[type=password], select {
  width: 100%;
  padding: 12px;
  font-size: 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
}

.flash { padding: 12px; border-radius: 8px; margin-bottom: 14px; font-size: 14px; }
.flash.success { background: #dcfce7; color: var(--primary-dark); }
.flash.error { background: #fee2e2; color: var(--danger); }

.muted { color: var(--muted); font-size: 13px; }
.center { text-align: center; }
.mt { margin-top: 16px; }