body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background: linear-gradient(135deg, #1b077e, #043376);
  margin: 0;
}

/* Extra grote, liggende kaart */
.rect-card {
  width: 850px;    /* Groter */
  height: 580px;   /* Groter */
  perspective: 1000px;
  position: relative;
}

/* Voorkant en achterkant */
.rect-card-front, .rect-card-back {
  width: 100%;
  height: 100%;
  background: rgb(230, 6, 6);
  border-radius: 15px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.25);
  text-align: left;
  padding: 20px;
  box-sizing: border-box;
  backface-visibility: hidden;
  position: absolute;
  top: 0;
  left: 0;
  transition: transform 0.8s;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* Voorkant content: afbeelding links, tekst rechts */
.card-content {
  display: flex;
  align-items: flex-start;
  gap: 30px;
}

.card-content img {
  width: 150px;   /* Grotere afbeelding */
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
}

.text-content h2 {
  margin: 0;
  font-size: 26px;
}

.text-content p {
  margin: 5px 0;
  font-size: 16px;
  line-height: 1.5;
}

/* Knoppen */
.rect-card-front button, .rect-card-back button {
  margin-top: 15px;
  padding: 12px 25px;
  border: none;
  border-radius: 25px;
  background: #66a6ff;
  color: white;
  cursor: pointer;
  transition: background 0.3s;
}

.rect-card-front button:hover, .rect-card-back button:hover {
  background: #89f7fe;
}

/* Achterkant layout */
.rect-card-back {
  transform: rotateY(180deg);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

ul {
  list-style: none;
  padding: 0;
  margin: 10px 0 0 0;
  font-size: 16px;
}

/* Flip effect */
.rect-card.flipped .rect-card-front {
  transform: rotateY(180deg);
}

.rect-card.flipped .rect-card-back {
  transform: rotateY(0deg);
}