body {
  font-family: Arial, sans-serif;
  background: #f3f4f6;
  margin: 0;
  padding: 0;
}

.container, .box {
  width: 92%;
  max-width: 1100px;
  margin: 30px auto;
  background: #fff;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 0 12px rgba(0,0,0,0.08);
}

.box {
  max-width: 500px;
}

h1, h2 {
  text-align: center;
}

input, select, textarea, button {
  width: 100%;
  padding: 12px;
  margin-top: 10px;
  border: 1px solid #ddd;
  border-radius: 8px;
  box-sizing: border-box;
}

button, .btn-link, .menu a {
  background: #2563eb;
  color: #fff;
  text-decoration: none;
  border: none;
  cursor: pointer;
  display: inline-block;
  text-align: center;
  padding: 12px;
  border-radius: 8px;
}

.danger {
  background: #dc2626;
  color: #fff;
  padding: 8px 10px;
  border-radius: 8px;
  text-decoration: none;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin: 20px 0;
}

.card {
  background: #eef2ff;
  padding: 18px;
  border-radius: 10px;
  text-align: center;
}

.menu {
  display: grid;
  gap: 10px;
}

.menu.inline {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 15px;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 15px;
  background: #fff;
}

table th, table td {
  border: 1px solid #ddd;
  padding: 10px;
  text-align: right;
  vertical-align: top;
}

table th {
  background: #f8fafc;
}

.success { color: green; text-align: center; }
.error { color: red; text-align: center; }
textarea { min-height: 160px; }