/* Reset and base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

img {  
   user-drag: none;  
   user-select: none;
   -moz-user-select: none;
   -webkit-user-drag: none;
   -webkit-user-select: none;
   -ms-user-select: none;
}

body, html {
  height: 100%;
  width: 100%;
  overflow: hidden;
  font-family: "General Sans", sans-serif;
}

#main-container {
  position: relative;
  width: 100vw;
  height: 100vh;
  background-color: #f1f1f1;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}

#ripple-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.ripple {
  position: absolute;
  width: 100px;
  height: 100px;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 50%;
  transform: scale(0);
  animation: ripple-animation 0.6s ease-out forwards;
  pointer-events: none;
  transition: all 0.2s ease-in;
}

@keyframes ripple-animation {
  to {
    transform: scale(20);
    opacity: 0;
  }
}

#btn-container {
  position: relative;
  z-index: 2;
  background: white;
  display: flex;
}

.mode-btn {
  cursor: pointer;
  padding: 10px;
  background-color: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
}

#light, #dark {
  width: 50%;
  transition: background-color 0.3s ease;
}

.mode-btn img {
  width: 35px;
  height: 35px;
  padding: 4px;
  position: relative;
  z-index: 10;
}