body {
  font-family: Arial, sans-serif;
  margin: 0;
  background: #f7f7f9;
  color: #222;
}
.container {
  width: 90%;
  max-width: 1000px;
  margin: 30px auto;
  background: #fff;
  padding: 24px;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}
h1, h2, h3 { margin-top: 0; }
a {
  color: #0a66c2;
  text-decoration: none;
}
a:hover { text-decoration: underline; }
.nav {
  display: flex;
  gap: 14px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.flash {
  padding: 12px;
  border-radius: 8px;
  margin-bottom: 16px;
}
.flash.success {
  background: #e7f7ec;
  color: #146c2e;
}
.flash.error {
  background: #fdeaea;
  color: #a12622;
}
form {
  display: grid;
  gap: 12px;
  margin-bottom: 20px;
}
input, textarea, select, button {
  padding: 10px;
  font-size: 15px;
}
button {
  border: none;
  border-radius: 8px;
  cursor: pointer;
  background: #111827;
  color: white;
}
button:hover {
  opacity: 0.92;
}
.card {
  border: 1px solid #ddd;
  border-radius: 10px;
  padding: 14px;
  margin-bottom: 14px;
}
.row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.inline {
  display: inline;
}
.small {
  color: #666;
  font-size: 14px;
}
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
}
th, td {
  border: 1px solid #ddd;
  padding: 10px;
  text-align: left;
}
th {
  background: #f1f3f5;
}
.actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}