:root {
  --psb-green: #0a6b3d;
  --psb-green-dark: #084f2d;
  --psb-gold: #c9a227;
  --psb-black: #1a1a1a;
  --psb-bg: #f4f6f5;
  --border: #e2e5e3;
  --text-muted: #6b7280;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--psb-bg);
  color: var(--psb-black);
}

a { text-decoration: none; color: inherit; }

/* ---------- Top bar ---------- */
.topbar {
  background: linear-gradient(90deg, var(--psb-green-dark), var(--psb-green));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  height: 60px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}

.topbar .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
}

.topbar .brand .badge-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--psb-gold);
}

.topbar .user-menu {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 14px;
}

.topbar .user-menu .role-tag {
  background: rgba(255,255,255,0.15);
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 12px;
  text-transform: capitalize;
}

.topbar .user-menu a.logout {
  background: var(--psb-gold);
  color: var(--psb-black);
  padding: 6px 14px;
  border-radius: 6px;
  font-weight: 600;
}

/* ---------- Layout ---------- */
.layout { display: flex; min-height: calc(100vh - 60px); }

.sidebar {
  width: 220px;
  background: #fff;
  border-right: 1px solid var(--border);
  padding: 20px 0;
}

.sidebar a.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 24px;
  color: #374151;
  font-size: 14.5px;
  border-left: 3px solid transparent;
}

.sidebar a.nav-link:hover,
.sidebar a.nav-link.active {
  background: #eef7f1;
  border-left-color: var(--psb-green);
  color: var(--psb-green-dark);
  font-weight: 600;
}

.content {
  flex: 1;
  padding: 28px 32px;
  max-width: 1100px;
}

/* ---------- Cards / Widgets ---------- */
.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 20px;
}

.card h2, .card h3 { margin-top: 0; }

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 20px;
}

.stat-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px;
}
.stat-card .num { font-size: 28px; font-weight: 700; color: var(--psb-green-dark); }
.stat-card .label { color: var(--text-muted); font-size: 13px; }

/* ---------- Forms ---------- */
label { display: block; margin: 12px 0 4px; font-weight: 600; font-size: 13.5px; }
input[type=text], input[type=email], input[type=password], input[type=date], input[type=number],
select, textarea, input[type=file] {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
}
textarea { resize: vertical; min-height: 90px; }

.btn {
  display: inline-block;
  background: var(--psb-green);
  color: #fff;
  border: none;
  padding: 9px 18px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}
.btn:hover { background: var(--psb-green-dark); }
.btn-danger { background: #b91c1c; }
.btn-danger:hover { background: #7f1d1d; }
.btn-outline { background: #fff; color: var(--psb-green); border: 1px solid var(--psb-green); }
.btn-sm { padding: 5px 12px; font-size: 12.5px; }

/* ---------- Table ---------- */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); font-size: 14px; }
th { color: var(--text-muted); font-size: 12.5px; text-transform: uppercase; letter-spacing: .03em; }

/* ---------- Badges ---------- */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
}
.badge-success { background: #dcfce7; color: #166534; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-danger { background: #fee2e2; color: #991b1b; }
.badge-secondary { background: #e5e7eb; color: #374151; }
.badge-dept { background: #eef2ff; color: #3730a3; }

/* ---------- Login page ---------- */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--psb-green-dark), var(--psb-green) 60%, var(--psb-gold));
}
.login-box {
  background: #fff;
  padding: 36px 40px;
  border-radius: 12px;
  width: 360px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.25);
}
.login-box h1 { font-size: 20px; margin-bottom: 2px; color: var(--psb-green-dark); }
.login-box p.sub { color: var(--text-muted); font-size: 13px; margin-top: 0; margin-bottom: 18px; }
.login-box .btn { width: 100%; margin-top: 16px; padding: 11px; }
.demo-hint {
  margin-top: 18px;
  font-size: 12px;
  background: #f9fafb;
  border: 1px dashed #d1d5db;
  padding: 10px 12px;
  border-radius: 6px;
  color: var(--text-muted);
}

.alert { padding: 10px 14px; border-radius: 6px; font-size: 13.5px; margin-bottom: 14px; }
.alert-error { background: #fee2e2; color: #991b1b; }
.alert-success { background: #dcfce7; color: #166534; }

.announcement { border-bottom: 1px solid var(--border); padding: 12px 0; }
.announcement:last-child { border-bottom: none; }
.announcement .meta { color: var(--text-muted); font-size: 12px; margin-top: 4px; }

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
}
.page-header h1 { margin: 0; font-size: 22px; }