:root {
  --primary: #2f6f4f;
  --primary-dark: #1f4d36;
  --accent: #e08e45;
  --bg: #f6f8f7;
  --card: #ffffff;
  --text: #1c2b24;
  --muted: #6b7b74;
  --border: #dfe6e2;
  --danger: #c0392b;
  --radius: 10px;
}

* { box-sizing: border-box; }

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

#nav {
  background: var(--primary-dark);
  color: white;
}
.nav-inner {
  max-width: 1000px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.nav-brand { color: white; font-weight: 700; text-decoration: none; font-size: 17px; }
.nav-links { display: flex; gap: 18px; flex: 1; }
.nav-links a { color: #cfe4d8; text-decoration: none; font-size: 14px; padding: 4px 0; border-bottom: 2px solid transparent; }
.nav-links a.active, .nav-links a:hover { color: white; border-bottom-color: var(--accent); }
.nav-user { display: flex; align-items: center; gap: 10px; font-size: 13px; color: #cfe4d8; }

main {
  max-width: 1000px;
  margin: 0 auto;
  padding: 24px 20px 60px;
}

.center-page {
  max-width: 420px;
  margin: 60px auto;
  padding: 0 20px;
}

h1 { font-size: 24px; margin: 0 0 6px; }
h2 { font-size: 18px; margin: 0 0 10px; }
.subtitle { color: var(--muted); margin: 0 0 20px; font-size: 14px; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-bottom: 16px;
}

.grid { display: grid; gap: 16px; }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 700px) {
  .grid.cols-3, .grid.cols-2 { grid-template-columns: 1fr; }
  .nav-links { display: none; }
}

.stat-card { text-align: center; }
.stat-card .stat-label { color: var(--muted); font-size: 13px; margin-bottom: 10px; }
.stat-card .stat-pair { display: flex; justify-content: center; gap: 28px; }
.stat-card .stat-person { display: flex; flex-direction: column; align-items: center; }
.stat-card .stat-value { font-size: 26px; font-weight: 700; }
.stat-card .stat-name { color: var(--muted); font-size: 12px; margin-top: 4px; }

label { display: block; font-size: 13px; font-weight: 600; margin: 12px 0 4px; color: var(--text); }
input, select, textarea {
  width: 100%;
  padding: 9px 11px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  background: white;
  color: var(--text);
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); }

button {
  background: var(--primary);
  color: white;
  border: none;
  padding: 10px 16px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}
button:hover { background: var(--primary-dark); }
button.secondary { background: transparent; color: var(--primary-dark); border: 1px solid var(--border); }
button.secondary:hover { background: var(--bg); }
button:disabled { opacity: 0.6; cursor: default; }

.tabs { display: flex; gap: 4px; margin-bottom: 16px; border-bottom: 1px solid var(--border); }
.tab-btn { background: none; border: none; color: var(--muted); padding: 10px 4px; margin-right: 20px; font-weight: 600; border-bottom: 2px solid transparent; border-radius: 0; }
.tab-btn.active { color: var(--primary-dark); border-bottom-color: var(--primary); }
.tab-btn:hover { background: none; color: var(--primary-dark); }

.error { color: var(--danger); font-size: 13px; margin-top: 8px; }
.hint { color: var(--muted); font-size: 13px; }
.success { color: var(--primary-dark); font-size: 13px; }

.badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge.ok { background: #e2f3e8; color: var(--primary-dark); }
.badge.pending { background: #fdf1e2; color: #8a5a1f; }
.badge.off { background: #f1f1f1; color: var(--muted); }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; }

.chart-box { position: relative; height: 220px; }

a.link { color: var(--primary-dark); }