:root{--takatsu-bot-primary:#2563eb;--takatsu-bot-primary-hover:#1d4ed8;--takatsu-bot-bg:#fff;--takatsu-bot-border:#e5e7eb;--takatsu-bot-msg-bot-bg:#f3f4f6;--takatsu-bot-msg-bot-color:#1f2937;--takatsu-bot-msg-user-bg:#2563eb;--takatsu-bot-msg-user-color:#fff;--takatsu-bot-msg-error-bg:#fef2f2;--takatsu-bot-msg-error-color:#dc2626;--takatsu-bot-header-bg:#1f2937;--takatsu-bot-header-color:#fff;--takatsu-bot-font-size:14px;--takatsu-bot-radius:8px}.takatsu-bot{max-width:600px;margin:0 auto;border:1px solid var(--takatsu-bot-border);border-radius:var(--takatsu-bot-radius);overflow:hidden;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Hiragino Sans","Noto Sans JP",sans-serif;font-size:var(--takatsu-bot-font-size);background:var(--takatsu-bot-bg);display:flex;flex-direction:column}.takatsu-bot__header{background:var(--takatsu-bot-header-bg);color:var(--takatsu-bot-header-color);padding:12px 16px}.takatsu-bot__title{margin:0;font-size:16px;font-weight:600}.takatsu-bot__messages{flex:1;overflow-y:auto;padding:16px;min-height:300px;max-height:500px;display:flex;flex-direction:column;gap:12px}.takatsu-bot__message{max-width:85%;padding:10px 14px;border-radius:12px;line-height:1.5;word-wrap:break-word;white-space:pre-wrap}.takatsu-bot__message--bot{align-self:flex-start;background:var(--takatsu-bot-msg-bot-bg);color:var(--takatsu-bot-msg-bot-color);border-bottom-left-radius:4px}.takatsu-bot__message--user{align-self:flex-end;background:var(--takatsu-bot-msg-user-bg);color:var(--takatsu-bot-msg-user-color);border-bottom-right-radius:4px}.takatsu-bot__message--error{align-self:center;background:var(--takatsu-bot-msg-error-bg);color:var(--takatsu-bot-msg-error-color);border:1px solid var(--takatsu-bot-msg-error-color);font-size:13px;text-align:center}.takatsu-bot__message a{color:inherit;text-decoration:underline}.takatsu-bot__message--bot a{color:var(--takatsu-bot-primary)}.takatsu-bot__separator{border-top:1px solid var(--takatsu-bot-border);margin:4px 0}.takatsu-bot__typing{align-self:flex-start;display:flex;gap:4px;padding:12px 16px;background:var(--takatsu-bot-msg-bot-bg);border-radius:12px;border-bottom-left-radius:4px}.takatsu-bot__typing-dot{width:8px;height:8px;background:#9ca3af;border-radius:50%;animation:takatsu-bot-typing 1.4s infinite ease-in-out}.takatsu-bot__typing-dot:nth-child(2){animation-delay:.2s}.takatsu-bot__typing-dot:nth-child(3){animation-delay:.4s}@keyframes takatsu-bot-typing{0%,60%,100%{transform:translateY(0);opacity:.4}30%{transform:translateY(-4px);opacity:1}}.takatsu-bot__input-area{display:flex;gap:8px;padding:12px 16px;border-top:1px solid var(--takatsu-bot-border);background:var(--takatsu-bot-bg)}.takatsu-bot__textarea{flex:1;resize:none;border:1px solid var(--takatsu-bot-border);border-radius:8px;padding:8px 12px;font-family:inherit;font-size:var(--takatsu-bot-font-size);line-height:1.5;max-height:120px;outline:none;transition:border-color .2s}.takatsu-bot__textarea:focus{border-color:var(--takatsu-bot-primary)}.takatsu-bot__send{align-self:flex-end;padding:8px 16px;background:var(--takatsu-bot-primary);color:#fff;border:none;border-radius:8px;font-family:inherit;font-size:var(--takatsu-bot-font-size);font-weight:600;cursor:pointer;transition:background .2s;white-space:nowrap}.takatsu-bot__send:hover:not(:disabled){background:var(--takatsu-bot-primary-hover)}.takatsu-bot__send:disabled{opacity:.5;cursor:not-allowed}@media (max-width:600px){.takatsu-bot{border-radius:0;border-left:none;border-right:none}.takatsu-bot__messages{min-height:250px}.takatsu-bot__message{max-width:90%}}