:root{color-scheme:light;--ink:#15231d;--muted:#66756d;--line:#dce5df;--paper:#ffffff;--panel:#f4f8f5;--brand:#176b4b;--brand-dark:#0f4934;--brand-soft:#e2f1e9;--accent:#f1ad45;font-family:Pretendard,Noto Sans KR,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{margin:0;background:#eef3ef;color:var(--ink)}button,input,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:wait;opacity:.55}.demo-shell{min-height:100vh;display:grid;grid-template-columns:minmax(280px,1fr) minmax(360px,460px);align-items:center;grid-gap:clamp(32px,7vw,108px);gap:clamp(32px,7vw,108px);padding:clamp(24px,6vw,80px);background:radial-gradient(circle at 15% 10%,rgba(241,173,69,.18),transparent 30%),linear-gradient(135deg,#f7faf8,#e4eee8)}.demo-copy{max-width:640px}.eyebrow{color:var(--brand);font-size:12px;font-weight:800;letter-spacing:.18em}.demo-copy h1{margin:18px 0;font-size:clamp(42px,6vw,78px);line-height:1.04;letter-spacing:-.055em}.demo-copy p{max-width:520px;color:var(--muted);font-size:18px;line-height:1.75}.widget-page{min-height:100dvh;background:transparent}.chat-card{width:100%;height:min(760px,calc(100dvh - 48px));display:grid;grid-template-rows:auto minmax(180px,1fr) auto;overflow:hidden;border:1px solid rgba(23,107,75,.16);border-radius:26px;background:var(--paper);box-shadow:0 28px 80px rgba(18,47,35,.18)}.chat-card.embedded{height:100dvh;max-height:none;border:0;border-radius:0;box-shadow:none}.chat-header{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 22px;background:var(--brand-dark);color:white}.chat-header strong{font-size:17px}.chat-header p{margin:4px 0 0 19px;color:rgba(255,255,255,.68);font-size:12px}.online-dot{display:inline-block;width:9px;height:9px;margin-right:10px;border-radius:50%;background:#6ee7a8;box-shadow:0 0 0 4px rgba(110,231,168,.14)}.topic-chip{max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;border:1px solid rgba(255,255,255,.25);border-radius:999px;padding:7px 10px;font-size:11px}.transcript{overflow-y:auto;padding:22px 18px;background:linear-gradient(180deg,#f8fbf9,#f3f7f4)}.bubble-row{display:flex;margin-bottom:12px}.bubble-row.customer{justify-content:flex-end}.bubble{max-width:84%;border:1px solid var(--line);border-radius:6px 18px 18px 18px;background:white;padding:11px 13px 8px;box-shadow:0 5px 18px rgba(35,63,50,.06)}.customer .bubble{border-color:var(--brand);border-radius:18px 6px 18px 18px;background:var(--brand);color:white}.operator .bubble{border-color:#b6d9c8;background:#ebf7f0}.bubble b{display:block;margin-bottom:5px;color:var(--brand);font-size:11px}.bubble p{margin:0;white-space:pre-wrap;word-break:break-word;font-size:14px;line-height:1.55}.bubble time{display:block;margin-top:5px;color:var(--muted);font-size:10px;text-align:right}.customer .bubble time{color:rgba(255,255,255,.65)}.loading-copy{color:var(--muted);font-size:13px;text-align:center}.action-area{max-height:46%;overflow-y:auto;border-top:1px solid var(--line);padding:14px;background:white}.menu-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:8px;gap:8px}.menu-button{min-height:64px;border:1px solid var(--line);border-radius:13px;background:white;padding:10px 11px;text-align:left;transition:border-color .2s,transform .2s,background .2s}.menu-button:hover{transform:translateY(-1px);border-color:var(--brand);background:var(--brand-soft)}.menu-button span,.menu-button strong{display:block}.menu-button strong{color:var(--ink);font-size:13px}.menu-button span{margin-top:4px;color:var(--muted);font-size:10px;line-height:1.35}.change-options{display:grid;grid-template-columns:1fr 1fr;grid-gap:8px;gap:8px;margin-top:8px;padding:9px;border-radius:13px;background:var(--brand-soft)}.change-options button{border:1px solid #b8d6c6;border-radius:9px;background:white;padding:10px;color:var(--brand-dark);font-size:12px;font-weight:700}.input-card{display:grid;grid-gap:10px;gap:10px;padding:13px;border:1px solid var(--line);border-radius:14px;background:var(--panel)}.input-card>div span,.input-card>div strong{display:block}.input-card>div span{margin-top:3px;color:var(--muted);font-size:11px}.input-card label{display:grid;grid-template-columns:82px 1fr;align-items:center;color:var(--muted);font-size:12px}.composer textarea,.input-card input,.input-card textarea{width:100%;border:1px solid var(--line);border-radius:10px;background:white;padding:10px 11px;color:var(--ink);outline:none;resize:vertical}.composer textarea:focus,.input-card input:focus,.input-card textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,107,75,.12)}.new-chat-button,.primary-button{min-height:42px;border:0;border-radius:11px;background:var(--brand);color:white;font-weight:700}.composer{display:grid;grid-template-columns:1fr auto;grid-gap:8px;gap:8px;align-items:end}.composer button{height:44px;border:0;border-radius:11px;background:var(--brand);padding:0 16px;color:white;font-weight:700}.new-chat-button{width:100%}.error-copy{margin:10px 0 0;border-radius:9px;background:#fff0ef;padding:9px 10px;color:#ad2c24;font-size:12px}.privacy-copy{margin:10px 2px 0;color:#829087;font-size:9px;line-height:1.4;text-align:center}@media (max-width:820px){.demo-shell{grid-template-columns:1fr;padding:18px}.demo-copy{display:none}.chat-card{height:calc(100dvh - 36px)}}@media (max-width:420px){.menu-grid{grid-template-columns:1fr}.chat-card{height:100dvh;border-radius:0}.demo-shell{padding:0}}