/* K-Culture Elite Chatbot Widget */
:root {
  --kc-chat-bg: #111111;
  --kc-chat-border: rgba(168, 85, 247, 0.4);
  --kc-chat-accent: #a855f7;
  --kc-chat-accent-glow: #c084fc;
  --kc-chat-text: #e5e5e5;
  --kc-chat-muted: #8a8a8a;
  --kc-chat-user-bg: #a855f7;
  --kc-chat-assistant-bg: #1a1a1a;
}

.kc-chat-button {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, #a855f7, #c084fc);
  box-shadow: 0 0 24px rgba(168, 85, 247, 0.5);
  border: none;
  cursor: pointer;
  color: #fff;
  font-size: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9998;
  transition: transform 0.2s ease;
}
.kc-chat-button:hover { transform: scale(1.06); }
.kc-chat-button[aria-expanded="true"] { display: none; }

.kc-chat-panel {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: min(360px, calc(100vw - 32px));
  height: min(540px, calc(100vh - 48px));
  background: var(--kc-chat-bg);
  border: 1px solid var(--kc-chat-border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
  display: none;
  flex-direction: column;
  z-index: 9999;
  font-family: Inter, system-ui, sans-serif;
  color: var(--kc-chat-text);
}
.kc-chat-panel.kc-open { display: flex; }

.kc-chat-header {
  background: linear-gradient(135deg, #a855f7, #23508e);
  padding: 12px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #fff;
  font-weight: 600;
  font-size: 14px;
}
.kc-chat-close {
  background: none; border: none; color: #fff;
  font-size: 20px; cursor: pointer; padding: 0; line-height: 1;
}

.kc-chat-messages {
  flex: 1;
  padding: 12px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
  scroll-behavior: smooth;
}
.kc-chat-msg {
  max-width: 85%;
  padding: 8px 12px;
  border-radius: 10px;
  font-size: 14px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-wrap: break-word;
}
.kc-chat-msg.user {
  background: var(--kc-chat-user-bg);
  color: #fff;
  align-self: flex-end;
}
.kc-chat-msg.assistant {
  background: var(--kc-chat-assistant-bg);
  color: var(--kc-chat-text);
  align-self: flex-start;
}
.kc-chat-msg.error { color: #ff7a7a; font-style: italic; }

.kc-chat-typing {
  color: var(--kc-chat-muted);
  font-size: 12px;
  font-style: italic;
  padding: 4px 8px;
}

.kc-chat-form {
  border-top: 1px solid #222;
  padding: 10px;
  display: flex;
  gap: 8px;
}
.kc-chat-input {
  flex: 1;
  background: #0a0a0a;
  border: 1px solid #333;
  border-radius: 8px;
  padding: 8px 10px;
  color: var(--kc-chat-text);
  font-size: 14px;
  font-family: inherit;
  resize: none;
  min-height: 36px;
  max-height: 120px;
}
.kc-chat-input:focus {
  outline: none;
  border-color: var(--kc-chat-accent);
}
.kc-chat-send {
  background: var(--kc-chat-accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  width: 40px;
  cursor: pointer;
  font-size: 16px;
  transition: background 0.15s;
}
.kc-chat-send:hover { background: var(--kc-chat-accent-glow); }
.kc-chat-send:disabled { opacity: 0.4; cursor: not-allowed; }

.kc-chat-footer {
  padding: 6px 10px 10px;
  font-size: 10px;
  color: var(--kc-chat-muted);
  text-align: center;
}

@media (prefers-reduced-motion: reduce) {
  .kc-chat-button { transition: none; }
  .kc-chat-messages { scroll-behavior: auto; }
}

@media (max-width: 480px) {
  .kc-chat-panel {
    width: 100vw;
    height: 100vh;
    right: 0;
    bottom: 0;
    border-radius: 0;
  }
}