:root {
  --brand: #2563eb;
  --brand-dark: #1d4ed8;
  --ink: #111827;
  --muted: #6b7280;
  --bg: #f5f6f8;
  --card: #ffffff;
  --border: #e5e7eb;
  --danger: #dc2626;
  --success: #16a34a;
  --radius: 10px;
}

* { box-sizing: border-box; }

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

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
  background: var(--ink);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.5rem;
}
.topbar .brand { font-weight: 700; font-size: 1.1rem; color: #fff; }
.topbar nav a { color: #d1d5db; margin-left: 1.25rem; font-size: 0.92rem; }
.topbar nav a:hover, .topbar nav a.active { color: #fff; text-decoration: none; }
.topbar .user { color: #9ca3af; font-size: 0.85rem; }

.container { max-width: 1080px; margin: 0 auto; padding: 1.75rem 1.5rem; }
.container.narrow { max-width: 460px; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.25rem;
}

h1 { font-size: 1.5rem; margin: 0 0 1rem; }
h2 { font-size: 1.15rem; margin: 0 0 0.85rem; }
.page-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.25rem; }
.muted { color: var(--muted); font-size: 0.9rem; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 0.65rem 0.5rem; border-bottom: 1px solid var(--border); font-size: 0.92rem; }
th { color: var(--muted); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.02em; }
tr:last-child td { border-bottom: none; }

.btn {
  display: inline-block;
  background: var(--brand);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 0.55rem 1.1rem;
  font-size: 0.92rem;
  cursor: pointer;
}
.btn:hover { background: var(--brand-dark); text-decoration: none; }
.btn.secondary { background: #fff; color: var(--ink); border: 1px solid var(--border); }
.btn.secondary:hover { background: #f3f4f6; }
.btn.danger { background: var(--danger); }
.btn.small { padding: 0.3rem 0.7rem; font-size: 0.82rem; }

label { display: block; font-size: 0.85rem; font-weight: 600; margin: 0.9rem 0 0.3rem; }
input[type=text], input[type=email], input[type=password], input[type=date], input[type=file],
textarea, select {
  width: 100%;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: inherit;
}
textarea { min-height: 90px; resize: vertical; }
.checkbox-row { display: flex; align-items: center; gap: 0.5rem; margin-top: 0.9rem; }
.checkbox-row input { width: auto; }
.checkbox-row label { margin: 0; }

.badge {
  display: inline-block;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  background: #e5e7eb;
  color: var(--ink);
}
.badge.blue { background: #dbeafe; color: #1e40af; }
.badge.green { background: #dcfce7; color: #166534; }
.badge.amber { background: #fef3c7; color: #92400e; }
.badge.gray { background: #f3f4f6; color: #4b5563; }
.badge.red { background: #fee2e2; color: #991b1b; }

.flash { padding: 0.75rem 1rem; border-radius: 8px; margin-bottom: 1rem; font-size: 0.92rem; }
.flash.success { background: #dcfce7; color: #166534; }
.flash.error { background: #fee2e2; color: #991b1b; }

.empty { color: var(--muted); font-size: 0.9rem; padding: 1rem 0; }

.grid-2 { display: grid; grid-template-columns: 2fr 1fr; gap: 1.25rem; }
@media (max-width: 800px) { .grid-2 { grid-template-columns: 1fr; } }

.login-box { margin-top: 8vh; }
.login-box h1 { text-align: center; }