* { box-sizing: border-box; }
body {
  font-family: system-ui, "Segoe UI", sans-serif;
  background: #f1f5f9;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.card {
  position: relative;
  width: 300px;
  height: 200px;
  background: white;
  border-radius: 16px;
  box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
  overflow: hidden; /* Essential to clip ribbon */
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.ribbon {
  position: absolute;
  top: 20px;
  right: -35px;
  background: #ef4444;
  color: white;
  width: 120px;
  padding: 3px 0;
  text-align: center;
  font-size: 0.8rem;
  font-weight: 700;
  transform: rotate(45deg);
  box-shadow: 0 2px 5px rgba(0,0,0,0.2);
  z-index: 10;
}

.content { padding: 20px; }
h3 { margin: 0 0 10px; color: #1e293b; }
p { margin: 0; color: #64748b; }