:root {
  --primary: #1976d2;   /* Somtoday blauw */
  --secondary: #009688; /* Turquoise accent */
  --background: #f5f5f5;
  --card-bg: #ffffff;
  --text: #333;
}

body {
  font-family: "Roboto", Arial, sans-serif;
  background: var(--background);
  margin: 0;
  color: var(--text);
}

header {
  background: var(--primary);
  color: white;
  padding: 16px;
}

.card {
  background: var(--card-bg);
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  margin: 20px auto;
  padding: 20px;
  max-width: 900px;
}

button, .btn {
  background: var(--secondary);
  color: white;
  border: none;
  padding: 10px 14px;
  border-radius: 4px;
  cursor: pointer;
}
button:hover { background: #00796b; }

table {
  width: 100%;
  border-collapse: collapse;
}
th {
  background: var(--primary);
  color: white;
  padding: 8px;
}
td {
  border-bottom: 1px solid #ddd;
  padding: 8px;
}