frontend/src/styles/chat.css

.chat-container {
  width: 420px;
  max-width: 90vw;
  height: 600px;
  display: flex;
  flex-direction: column;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(var(--blur)) saturate(180%);
  -webkit-backdrop-filter: blur(var(--blur)) saturate(180%);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
  position: relative;
  overflow: hidden;
}

.chat-container::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--glare);
  mix-blend-mode: overlay;
  pointer-events: none;
}

.message-list {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-right: 4px;
  scroll-behavior: smooth;
}

.session-list {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
  z-index: 1;
}

.session-item {
  padding: 0.25rem 0.5rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  font-size: 0.75rem;
  transition: transform 0.2s cubic-bezier(0.22, 1, 0.36, 1);
}

.session-item.active {
  background: rgba(255, 255, 255, 0.4);
  font-weight: bold;
}

.message {
  width: fit-content;
  max-width: 80%;
  padding: 0.5rem 1rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  animation: jelly 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.message.user {
  align-self: flex-end;
}

.input-bar {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.input-bar input {
  flex: 1;
  padding: 0.5rem 1rem;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  border-radius: var(--radius);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  color: #000;
  outline: none;
}

.input-bar button {
  padding: 0.5rem 1rem;
  border: none;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.6);
  color: #000;
  font-weight: bold;
  cursor: pointer;
  transition: transform 0.2s cubic-bezier(0.22, 1, 0.36, 1);
}

.username-form {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1;
  justify-content: center;
  align-items: center;
}

.username-form input {
  padding: 0.75rem 1rem;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  border-radius: var(--radius);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  width: 100%;
  max-width: 200px;
  text-align: center;
  outline: none;
}

.username-form button {
  padding: 0.5rem 1.5rem;
  border: none;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.7);
  font-weight: bold;
  cursor: pointer;
  transition: transform 0.2s cubic-bezier(0.22, 1, 0.36, 1);
}

.username-form button:hover {
  transform: scale(1.05);
}

.username-form button:active {
  transform: scale(0.95);
}

.input-bar button:hover {
  transform: scale(1.05);
}

.input-bar button:active {
  transform: scale(0.95);
}

@keyframes jelly {
  0% {
    transform: scale(0.9);
  }
  40% {
    transform: scale(1.05);
  }
  60% {
    transform: scale(0.97);
  }
  100% {
    transform: scale(1);
  }
}