/* Reset and global styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background-color: #f9f9ff;
  color: #333;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  min-height: 100vh;
  padding: 20px;
}

/* Container */
.quiz-container {
  width: 90%;
  max-width: 1200px;
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

/* Header */
.heading-container {
  background: linear-gradient(90deg, #1F41BB, #4c63d9);
  padding: 15px 30px;
}

.heading {
  color: #fff;
  display: flex;
  align-items: center;
  font-size: 28px;
  font-weight: 600;
}

.logo {
  height: 40px;
  width: 40px;
  margin-right: 10px;
  border-radius: 50%;
  border: 2px solid #fff;
}

/* Categories Button */
.categories-container {
  display: flex;
  justify-content: center;
  margin: 30px 0;
}

.categories-btn {
  border-radius: 30px;
  background-color: #1F41BB;
  color: white;
  padding: 12px 30px;
  border: none;
  font-size: 18px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.categories-btn:hover {
  background-color: #324ee0;
  transform: scale(1.05);
}

/* Main section */
main {
  padding: 20px;
  background-color: #f1f4ff;
}

.catelog {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 25px;
  justify-items: center;
}

/* Category cards */
.catelog img {
  width: 100%;
  max-width: 260px;
  height: 160px;
  object-fit: cover;
  border-radius: 12px;
  border: 2px solid #1F41BB;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  cursor: pointer;
}

.catelog img:hover {
  transform: translateY(-8px) scale(1.03);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.2);
}