* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, sans-serif;
  background: #e8eef5;
  color: #1e293b;
  min-height: 100vh;
}
a { color: #0f4c81; }
.site-header {
  background: #0f4c81;
  color: #fff;
  padding: 16px 20px;
}
.site-header h1 { margin: 0 0 4px; font-size: 1.25rem; }
.site-header p { margin: 0; font-size: 0.85rem; opacity: 0.9; }
.nav {
  background: #1e293b;
  color: #fff;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
  padding: 10px 20px;
}
.nav a, .nav button.linkish {
  color: #fff;
  text-decoration: none;
  background: none;
  border: 0;
  cursor: pointer;
  font: inherit;
  padding: 4px 0;
}
.nav a:hover, .nav button.linkish:hover { text-decoration: underline; }
.nav .spacer { flex: 1; }
.wrap { max-width: 920px; margin: 0 auto; padding: 20px; }
.card {
  background: #fff;
  border: 1px solid #cbd5e1;
  padding: 18px;
  margin-bottom: 18px;
}
.card h2 { margin: 0 0 12px; font-size: 1.15rem; color: #0f4c81; }
.card h3 { margin: 16px 0 10px; font-size: 1rem; color: #0f4c81; }
.row-between {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
label { display: block; font-weight: 700; margin: 10px 0 4px; }
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"] {
  width: 100%;
  max-width: 420px;
  padding: 8px 10px;
  border: 1px solid #94a3b8;
}
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; background: #fff; }
th, td { border: 1px solid #cbd5e1; padding: 8px 10px; text-align: left; }
th { background: #dbeafe; color: #0f4c81; }
.muted { color: #64748b; font-size: 0.9rem; }
.ok { color: #166534; font-weight: 700; }
.ko { color: #b91c1c; font-weight: 700; }
.alert { padding: 10px 12px; border: 1px solid #cbd5e1; margin-bottom: 12px; background: #fff; }
.alert-ok { border-color: #86efac; background: #f0fdf4; }
.alert-err { border-color: #fca5a5; background: #fef2f2; }
.btn {
  display: inline-block;
  padding: 8px 14px;
  border: 0;
  background: #0f4c81;
  color: #fff;
  cursor: pointer;
  text-decoration: none;
  font: inherit;
  margin: 4px 4px 0 0;
}
.btn-gray { background: #64748b; }
.btn-red { background: #b91c1c; }
.btn-sm { padding: 5px 10px; font-size: 0.85rem; }
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.login-box { width: 100%; max-width: 380px; }
.login-box .btn { width: 100%; }
.hint { font-size: 0.85rem; color: #64748b; text-align: center; }
.footer {
  background: #0f4c81;
  color: #fff;
  text-align: center;
  padding: 12px;
  font-size: 0.85rem;
  margin-top: 24px;
}
.inline-form { display: inline; }
table input[type="number"] { max-width: 120px; }
.nav a.active { text-decoration: underline; font-weight: 700; }