:root {
  --primary: #187FC0;
  --primary-dark: #0673BA;
  --secondary-gray: #828282;
  --danger: #c62828;
  --success: #256029;
  --border: #e0e0e0;
  --bg: #f5f6f8;
}
* { box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  margin: 0;
  background: var(--bg);
  color: #222;
}
.topbar {
  background: #fff;
  color: #333;
  padding: 10px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 3px solid var(--primary);
}
.topbar-logo { height: 40px; display: block; }
.topbar-user { font-size: 14px; color: var(--secondary-gray); }
.topbar-user a, .topbar-user .link-btn {
  color: var(--primary);
  text-decoration: underline;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 14px;
}
.main-nav {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  display: flex;
  gap: 4px;
}
.main-nav a {
  padding: 12px 16px;
  text-decoration: none;
  color: #444;
  font-size: 14px;
  border-bottom: 3px solid transparent;
}
.main-nav a.active, .main-nav a:hover {
  color: var(--primary);
  border-bottom-color: var(--primary);
}
.container {
  max-width: 1100px;
  margin: 24px auto;
  padding: 0 20px;
}
.card {
  background: #fff;
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 20px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
h2 { margin-top: 0; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--border); }
th { color: #666; font-weight: 600; font-size: 13px; text-transform: uppercase; }
input, select, textarea {
  padding: 8px 10px;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 14px;
  width: 100%;
}
label { display: block; font-size: 13px; font-weight: 600; margin: 10px 0 4px; color: #444; }
button {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 9px 16px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
}
button.secondary { background: #eee; color: #333; }
button.danger { background: var(--danger); }
button:disabled { opacity: 0.6; cursor: not-allowed; }
.btn { display: inline-block; background: var(--primary); color: #fff; padding: 9px 16px; border-radius: 4px; text-decoration: none; }
.actions-row { margin-top: 14px; display: flex; gap: 10px; }
.alert { padding: 10px 14px; border-radius: 4px; margin-bottom: 14px; font-size: 14px; }
.alert-error { background: #fdecea; color: var(--danger); }
.alert-success { background: #e3f2e3; color: var(--success); }
.status-pill { padding: 3px 10px; border-radius: 12px; font-size: 12px; font-weight: 600; }
.status-approved { background: #e3f2e3; color: var(--success); }
.status-rejected { background: #fdecea; color: var(--danger); }
.status-pending { background: #fff8e1; color: #8d6e00; }
.loading { color: #888; padding: 12px 0; }
.filters { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; margin-bottom: 8px; }
.expand-row td { background: #fafbfc; padding: 16px; }
.expand-form { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; }
.expand-form .full-width { grid-column: 1 / -1; }