:root{--bg:#f1f4f0;--surface:#fff;--surface-2:#f7f9f6;--accent:#3f7d6a;--accent-strong:#356a59;--accent-soft:#e7efe9;--text:#1e2a26;--text-muted:#5b6b63;--on-accent:#fff;--border:#e3e9e2;--shadow-sm:0 1px 2px #1e2a260f;--shadow-md:0 6px 20px -8px #1e2a262e;--radius-bubble:20px;--scrim:#eef2ec94;--panel:#ffffffbd;--panel-border:#ffffffb3;--sans:"Pretendard Variable", Pretendard, system-ui, -apple-system, "Segoe UI", Roboto, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;font-family:var(--sans);color:var(--text);background:var(--bg);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizelegibility;font-synthesis:none;font-size:16px;line-height:1.5}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--bg:#141816;--surface:#1e2421;--surface-2:#252c28;--accent:#5fa98f;--accent-strong:#6fb89e;--accent-soft:#25302b;--text:#e8ede9;--text-muted:#9db0a6;--on-accent:#0e1411;--border:#2a322e;--shadow-sm:0 1px 2px #0000004d;--shadow-md:0 8px 24px -10px #00000080;--scrim:#0e121099;--panel:#161b18a8;--panel-border:#ffffff17}}*{box-sizing:border-box}html,body{height:100%;margin:0}body{background:var(--bg)}#root{flex-direction:column;min-height:100svh;display:flex}@media (width<=480px){:root{font-size:16.5px}}.scene{z-index:0;background:var(--bg) url(/scene.jpg) center / cover no-repeat;filter:saturate(.92)brightness(1.02);transform-origin:60% 40%;will-change:transform;animation:46s ease-in-out infinite alternate ken-burns;position:fixed;inset:0;transform:scale(1.12)}.scene:after{content:"";background:var(--scrim);position:absolute;inset:0}@keyframes ken-burns{0%{transform:scale(1.12)translate(0,0)}to{transform:scale(1.2)translate(-2.5%,-2%)}}.chat{z-index:1;text-align:left;background:var(--panel);-webkit-backdrop-filter:blur(22px)saturate(1.3);backdrop-filter:blur(22px)saturate(1.3);border:1px solid var(--panel-border);border-radius:24px;flex-direction:column;width:100%;max-width:600px;height:calc(100svh - 52px);margin:26px auto;display:flex;position:relative;overflow:hidden;box-shadow:0 24px 60px -24px #141e1873,0 2px 8px #141e1814}@media (width<=640px){.chat{height:100svh;box-shadow:none;border:none;border-radius:0;margin:0}}.chat-header{border-bottom:1px solid var(--border);background:linear-gradient(to bottom, color-mix(in srgb, var(--surface) 26%, transparent), transparent);z-index:2;align-items:center;gap:12px;padding:14px 18px;display:flex}.chat-avatar{background:var(--accent-soft);width:46px;height:46px;color:var(--accent);box-shadow:var(--shadow-sm);border-radius:50%;flex-shrink:0;place-items:center;display:grid;position:relative}.chat-avatar svg{display:block}.chat-avatar:after{content:"";background:var(--accent);border:2.5px solid var(--surface);border-radius:50%;width:11px;height:11px;position:absolute;bottom:1px;right:1px}.chat-title{letter-spacing:-.02em;color:var(--text);margin:0;font-size:17px;font-weight:700;line-height:1.25}.chat-subtitle{color:var(--text-muted);letter-spacing:-.01em;margin:2px 0 0;font-size:12.5px}.chat-messages{overscroll-behavior:contain;scroll-behavior:smooth;flex-direction:column;flex:1;gap:10px;padding:8px 16px;display:flex;overflow-y:auto}.chat-hero{padding:26px 6px 22px}.chat-hero-title{letter-spacing:-.035em;color:var(--text);margin:0 0 14px;font-size:clamp(29px,7.5vw,38px);font-weight:800;line-height:1.18}.chat-hero-title .wave{transform-origin:70% 70%;animation:2.6s ease-in-out infinite wave;display:inline-block}@keyframes wave{0%,60%,to{transform:rotate(0)}10%{transform:rotate(14deg)}20%{transform:rotate(-8deg)}30%{transform:rotate(14deg)}40%{transform:rotate(-4deg)}50%{transform:rotate(10deg)}}.chat-hero-sub{letter-spacing:-.01em;color:var(--text-muted);margin:0;font-size:15.5px;line-height:1.62}.chat-hero-sub .hl{color:var(--accent);font-weight:700}.bubble-row{animation:.34s cubic-bezier(.22,1,.36,1) bubble-in;display:flex}.bubble-row.user{justify-content:flex-end}.bubble-row.assistant{justify-content:flex-start}@keyframes bubble-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.bubble{border-radius:var(--radius-bubble);letter-spacing:-.01em;white-space:pre-wrap;word-break:break-word;max-width:80%;padding:12px 16px;font-size:15.5px;line-height:1.58}.bubble.assistant{background:var(--surface);color:var(--text);border:1px solid var(--border);box-shadow:var(--shadow-md);border-bottom-left-radius:6px}.bubble.user{background:var(--accent);color:var(--on-accent);box-shadow:var(--shadow-md);border-bottom-right-radius:6px;font-weight:500}.bubble.typing{align-items:center;gap:5px;padding:15px 16px;display:inline-flex}.bubble.typing span{background:var(--text-muted);opacity:.45;border-radius:50%;width:7px;height:7px;animation:1.3s ease-in-out infinite typing-bounce}.bubble.typing span:nth-child(2){animation-delay:.18s}.bubble.typing span:nth-child(3){animation-delay:.36s}@keyframes typing-bounce{0%,60%,to{opacity:.45;transform:translateY(0)}30%{opacity:1;transform:translateY(-5px)}}.chat-input{padding:12px 14px calc(12px + env(safe-area-inset-bottom));border-top:1px solid var(--border);background:linear-gradient(to top, color-mix(in srgb, var(--surface) 26%, transparent), transparent);align-items:flex-end;gap:9px;display:flex}.chat-input textarea{resize:none;border:1px solid var(--border);letter-spacing:-.01em;max-height:132px;color:var(--text);background:var(--surface);border-radius:22px;outline:none;flex:1;padding:11px 17px;font-family:inherit;font-size:15.5px;line-height:1.45;transition:border-color .15s,box-shadow .15s}.chat-input textarea::placeholder{color:var(--text-muted)}.chat-input textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.chat-input button{background:var(--accent);width:44px;height:44px;color:var(--on-accent);cursor:pointer;box-shadow:var(--shadow-md);border:none;border-radius:50%;flex-shrink:0;place-items:center;font-size:19px;line-height:1;transition:transform .12s,background .15s,opacity .15s;display:grid}.chat-input button:hover:not(:disabled){background:var(--accent-strong)}.chat-input button:active:not(:disabled){transform:scale(.92)}.chat-input button:disabled{opacity:.4;cursor:not-allowed;box-shadow:none}.chat-messages::-webkit-scrollbar{width:8px}.chat-messages::-webkit-scrollbar-thumb{background:var(--border);border-radius:8px}.chat-messages::-webkit-scrollbar-track{background:0 0}@media (prefers-reduced-motion:reduce){.scene,.chat-hero-title .wave,.bubble-row{animation:none}.chat-messages{scroll-behavior:auto}}