* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  color: white;
  background-image: url(./assets/default-bg-img.avif);
  background-repeat: no-repeat;
  background-size: cover;
  -webkit-user-select: none;
  -ms-user-select: none;
  user-select: none;
  font-family: "poppins";
}

#hamburger {
  display: none;
  transition: 0.3s;
}
#hamburger:hover {
  transform: scale(1.1);
}

#close-icon {
  position: sticky;
  display: none;
}

h1 {
  text-align: center;
  margin: 20px 0;
  font-size: 4em;
}

.theme-menu {
  position: absolute;
  left: 20px;
  border-radius: 12px;
  padding: 15px;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
  gap: 10px;
  animation: fadeIn 0.3s ease forwards;
  margin: 62px 0;
  z-index: 1;
}

.theme-menu h3 {
  margin: 0;
  font-size: 2rem;
  text-align: center;
  height: 60px;
}

#randomThemeBtn {
  background: none;
  color: white;
  padding: 10px 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: 0.3s;
  font-size: 0.95rem;
  margin: 0 auto;
  width: 40%;
  border: 1px solid #fff;
}

.theme-menu-child {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.theme-btn {
  background: none;
  color: white;
  border: 1px solid #fff;
  padding: 10px 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: 0.3s;
  font-size: 0.95rem;
}

.theme-btn:hover,
#randomThemeBtn:hover {
  transform: scale(1.1);
}

.game {
  width: 60vmin;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 3.5px;
}
.box {
  height: 18vmin;
  width: 18vmin;
  font-size: 8vmin;
  text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.3);
  background-image: url(./assets/default-bg-img.avif);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  cursor: pointer;
}

.box:hover {
  background: rgba(255, 255, 255, 0.2);
}

.msg-container {
  text-align: center;
  font-size: 1.5em;
}

.hide-btn {
  display: none;
}

.newgame-btn {
  margin: 20px auto;
  padding: 10px 20px;
  background-color: #333;
  color: white;
  border: none;
  cursor: pointer;
  font-size: 1.2rem;
  border-radius: 5px;
}

@media (max-width: 1024px) {
  body {
    height: 100vh;
  }
  #hamburger {
    display: block;
    position: relative;
    left: 15px;
    top: 79px;
    cursor: pointer;
  }
  #close-icon {
    display: flex;
    scale: 2.3;
    cursor: pointer;
  }
  .theme-menu {
    top: -62px;
    left: -1500%;
    transition: all 0.7s;
    backdrop-filter: blur(10px);
    height: 100vh;
    border-radius: 0;
    width: 100%;
  }
}