* {
    margin: 0;
    padding: 0;
    
}

body {
    background: #548687;
    text-align: center;

}

.heading {
 height: 60px;
  display: flex;
  align-items: center;
  justify-content: center; 
  padding: 0 20px;
}

.container {
 height: 70vh;
 display: flex;
 flex-wrap: wrap;
 justify-content: center;
 align-items: center;

}

.game {
 height: 60vmin;
 width: 60vmin;
 display: flex;
 flex-wrap: wrap;
 justify-content: center;
 align-items: center;
 gap: 1.5vmin;
}

.box {
    height: 18vmin;
    width: 18vmin;
    border-radius: 1rem;
    border: none;
    box-shadow: 0 0 1rem rgba(0,0,0,0.3);
    font-size: 8vmin;
    color: white;
    background: linear-gradient(135deg, #3498db, #2980b9);
    cursor: pointer;
    transition: 0.3s;
}

.box:hover {
  background: linear-gradient(135deg, #2980b9, #1f618d);
  transform: scale(1.05);
}

#reset-btn {
  background: linear-gradient(135deg, #9b59b6, #8e44ad); /* Purple gradient */
  color: white;
  border: none;
  padding: 12px 25px;
  font-size: 16px;
  border-radius: 12px;
  cursor: pointer;
  transition: 0.3s;
}

#reset-btn:hover  {
background: linear-gradient(135deg, #8e44ad, #6c3483);
  transform: scale(1.05);
}

#new-btn {
  background: linear-gradient(135deg, #9b59b6, #8e44ad); /* Purple gradient */
  color: white;
  border: none;
  padding: 12px 25px;
  font-size: 16px;
  border-radius: 12px;
  cursor: pointer;
  transition: 0.3s;
}

#new-btn:hover {
  background: linear-gradient(135deg, #8e44ad, #6c3483);
  transform: scale(1.05);
}

#msg {
    color: #ffffc7;
    font-size: 5vmin;
    color: green;
    border-radius: 1rem;
    border: none; 
}
.msg-container {
    height: 100vmin;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    gap: 4rem;
}

.hide{
    display: none;
}


/* Mode Button */
#mode-btn {
  background: linear-gradient(135deg, #6a11cb, #2575fc);
  color: white;
  border: none;
  position:absolute;
  top: 12px;
  right: 15px;
  font-size: 18px;
  padding:12px 15px;
  border-radius: 50%;
  cursor: pointer;
  transition: 0.3s;
}

#mode-btn:hover {
  transform: scale(1.1);
}

/* Dark Mode */
.dark-mode {
  background-color: #1e1e2e;
  color: #eaeaea;
}

.dark-mode .header {
  background: #333; /* dark header */
}

.dark-mode #mode-btn {
  background: linear-gradient(135deg, #ff7eb3, #ff758c);
}