body {
  background: #f8f6f2;
  font-family: 'Poppins', sans-serif;
  margin: 0;
  padding: 0;
}

/* === SCHULTE TEST UNIQUE STYLES === */
.st-container {
    max-width: 1000px;
    margin: 40px auto;
    background: #ffffff;
    padding: 30px 122px;
    border-radius: 18px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
    text-align: center;
    width:40%;
}

.st-title {
  color: #4c392a;
  margin-bottom: 10px;
  font-size: 32px;
}

.st-stats {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 15px;
}

.st-stat-box {
  background: #f2e6d9;
  padding: 8px 20px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 16px;
  color: #4c392a;
}

.st-board {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-top: 20px;
  justify-content: center;
  padding: 0px 60px;
}

.st-cell {
  background: #e8dccc;
  color: #4a3b2a;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 0;
  border-radius: 6px;
  cursor: pointer;
  transition: 0.2s ease-in-out;
  user-select: none;
}

.st-next-btn {
  display: inline-block;
  background: linear-gradient(135deg,#16a34a,#15803d);
  color: #fff;
  padding: 12px 22px;
  border-radius: 10px;
  font-weight: 600;
  text-decoration: none;
}

.st-cell:hover {
  background: #d9c6ad;
  transform: scale(1.05);
}

.st-cell.st-correct {
    background: #c9c1b6;
    color: #4a3b2a;
    transform: scale(1);
}

#st-restart {
  margin-top: 25px;
  background: #8b5e3c;
  color: white;
  border: none;
  padding: 10px 25px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  font-size: 16px;
  transition: 0.2s;
}

#st-restart:hover {
  opacity: 0.9;
}

#st-result {
  margin-top: 25px;
  display: none;
  font-size: 18px;
  color: #4a3b2a;
}