:root {
  --window-bg: rgba(255, 255, 255, 0.95);
  --title-bar: #ffb6c1;
  --text-dark: #7a616d;
}

body, html {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  font-family: 'Nunito', sans-serif;
  background-image: url('assets/bg.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: var(--text-dark);
}

.window {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 90%;
  max-width: 450px;
  background: var(--window-bg);
  border: 3px solid var(--text-dark);
  border-radius: 8px;
  box-shadow: 8px 8px 0px rgba(122, 97, 109, 0.3);
  display: flex;
  flex-direction: column;
  z-index: 10;
  backdrop-filter: blur(5px);
}

.title-bar {
  background: var(--title-bar);
  padding: 6px 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 3px solid var(--text-dark);
  font-family: 'Pixelify Sans', cursive;
  font-size: 1.2rem;
  color: #fff;
  text-shadow: 1px 1px 0px var(--text-dark);
  border-radius: 4px 4px 0 0;
}

.title-bar-controls {
  display: flex;
  gap: 6px;
}

.title-bar-controls button {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid var(--text-dark);
  background: #fff;
  cursor: pointer;
  transition: transform 0.1s;
}

.title-bar-controls button:hover {
  transform: scale(1.1);
}

.title-bar-controls button:nth-child(1) { background: #ffdfba; }
.title-bar-controls button:nth-child(2) { background: #baffc9; }
.title-bar-controls button:nth-child(3) { background: #ffb3ba; }

.chat-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: rgba(255, 255, 255, 0.6);
  border-radius: 0 0 4px 4px;
  max-height: 400px;
  overflow-y: auto;
}

.chat-message {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  max-width: 85%;
}

.v-message {
  align-self: flex-start;
}

.k-message {
  align-self: flex-end;
  flex-direction: row;
}

.avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 0.8rem;
  color: #fff;
  flex-shrink: 0;
  border: 2px solid var(--text-dark);
}

.v-message .avatar {
  background-color: #a4c8f0;
}

.k-message .avatar {
  background-color: #ffb6c1;
}

.bubble {
  padding: 10px 14px;
  border-radius: 18px;
  font-size: 0.95rem;
  line-height: 1.4;
  position: relative;
  border: 2px solid var(--text-dark);
  background: #fff;
}

.v-message .bubble {
  border-bottom-left-radius: 4px;
  background-color: #eef5ff;
}

.k-message .bubble {
  border-bottom-right-radius: 4px;
  background-color: #fff0f3;
}

@keyframes float {
  0% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-12px) rotate(3deg); }
  100% { transform: translateY(0px) rotate(0deg); }
}

.sticker {
  position: absolute;
  width: 180px;
  height: 180px;
  cursor: grab;
  z-index: 20;
}

.sticker:active {
  cursor: grabbing;
}

.sticker-inner {
  width: 100%;
  height: 100%;
  animation: float 4s ease-in-out infinite;
  pointer-events: none;
}

.sticker img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  pointer-events: none;
}