* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: #f4f5f7;
  color: #1a1a1a;
}

.wrapper {
  max-width: 640px;
  margin: 60px auto;
  background: #fff;
  padding: 32px 40px;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.06);
}

h1 { margin-bottom: 4px; font-size: 22px; }
.subtitle { margin-top: 0; color: #6b7280; font-size: 13px; margin-bottom: 24px; }

#user-form {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

#user-form input {
  flex: 1 1 140px;
  padding: 9px 10px;
  border: 1px solid #d8dbe0;
  border-radius: 6px;
  font-size: 14px;
}

#user-form button {
  padding: 9px 16px;
  background: #2563eb;
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}

#user-form button:hover { background: #1d4ed8; }

#message {
  font-size: 13px;
  margin-bottom: 16px;
  min-height: 18px;
}
#message.error { color: #b91c1c; }
#message.success { color: #15803d; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

th, td {
  text-align: left;
  padding: 8px 6px;
  border-bottom: 1px solid #e5e7eb;
}

th { color: #6b7280; font-weight: 600; font-size: 12px; text-transform: uppercase; }

.delete-btn {
  background: none;
  border: none;
  color: #b91c1c;
  cursor: pointer;
  font-size: 13px;
}
.delete-btn:hover { text-decoration: underline; }

.empty-row td {
  text-align: center;
  color: #9ca3af;
  padding: 20px;
}