:root{--bg: #fbfaf7;--panel: #ffffff;--ink: #1f2420;--muted: #6b7280;--line: #e6e3dc;--accent: #1f6f5c;--accent-soft: #e7f1ee;--user: #1f6f5c;--error-bg: #fef2f2;--error-ink: #991b1b;color-scheme:light}@media(prefers-color-scheme:dark){:root{--bg: #14171a;--panel: #1b1f23;--ink: #e8eae7;--muted: #9aa3ab;--line: #2c3237;--accent: #58b79c;--accent-soft: #1d2b28;--user: #2a6b5b;--error-bg: #2a1a1a;--error-ink: #f7a8a8;color-scheme:dark}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.7 -apple-system,BlinkMacSystemFont,Apple SD Gothic Neo,Pretendard,Noto Sans KR,sans-serif;-webkit-font-smoothing:antialiased}.app{max-width:780px;margin:0 auto;min-height:100dvh;display:flex;flex-direction:column}header{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 20px 14px;border-bottom:1px solid var(--line);position:sticky;top:0;background:color-mix(in srgb,var(--bg) 88%,transparent);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:2}header h1{font-size:17px;margin:0;letter-spacing:-.01em}header p{margin:3px 0 0;font-size:12.5px;color:var(--muted)}button.ghost{background:none;border:1px solid var(--line);color:var(--muted);border-radius:999px;padding:6px 13px;font-size:13px;cursor:pointer;white-space:nowrap}button.ghost:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}button.ghost:disabled{opacity:.45;cursor:default}main{flex:1;padding:22px 20px 8px;display:flex;flex-direction:column;gap:14px}.empty{margin:8vh 0 0;text-align:center}.empty p{color:var(--muted);margin:0 0 18px}.chips{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}.chips button{background:var(--panel);border:1px solid var(--line);color:var(--ink);border-radius:999px;padding:9px 15px;font-size:13.5px;cursor:pointer}.chips button:hover{border-color:var(--accent);background:var(--accent-soft)}.row{display:flex}.row.user{justify-content:flex-end}.row.assistant{justify-content:flex-start}.bubble{max-width:86%;padding:12px 16px;border-radius:16px;white-space:pre-wrap;word-break:break-word}.row.user .bubble{background:var(--user);color:#fff;border-bottom-right-radius:5px}.row.assistant .bubble{background:var(--panel);border:1px solid var(--line);border-bottom-left-radius:5px}.md{white-space:normal}.md>:first-child{margin-top:0}.md>:last-child{margin-bottom:0}.md h1,.md h2,.md h3,.md h4{font-size:15px;font-weight:700;margin:18px 0 8px;letter-spacing:-.01em}.md h1{font-size:16px}.md p{margin:9px 0}.md ul,.md ol{margin:9px 0;padding-left:20px}.md li{margin:4px 0}.md a{color:var(--accent);text-decoration:none;border-bottom:1px solid currentColor}.md a:hover{opacity:.75}.md code{background:var(--accent-soft);padding:1px 5px;border-radius:4px;font-size:.9em}.md hr{border:0;border-top:1px solid var(--line);margin:14px 0}.md table{border-collapse:collapse;width:100%;font-size:13.5px}.md th,.md td{border:1px solid var(--line);padding:6px 9px;text-align:left}.status{color:var(--muted);display:flex;align-items:center;gap:9px;font-size:14px}.dot{width:7px;height:7px;border-radius:50%;background:var(--accent);animation:pulse 1.1s ease-in-out infinite}@keyframes pulse{0%,to{opacity:.25}50%{opacity:1}}.error{background:var(--error-bg);color:var(--error-ink);border-radius:10px;padding:11px 14px;font-size:13.5px;white-space:pre-wrap}form{position:sticky;bottom:0;display:flex;gap:9px;padding:12px 20px calc(16px + env(safe-area-inset-bottom));background:color-mix(in srgb,var(--bg) 88%,transparent);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-top:1px solid var(--line)}textarea{flex:1;resize:none;font:inherit;color:inherit;background:var(--panel);border:1px solid var(--line);border-radius:13px;padding:11px 14px;max-height:160px;field-sizing:content}textarea:focus{outline:none;border-color:var(--accent)}form button[type=submit]{background:var(--accent);color:#fff;border:0;border-radius:13px;padding:0 20px;font-size:14px;font-weight:600;cursor:pointer}form button[type=submit]:disabled{opacity:.4;cursor:default}@media(max-width:560px){.bubble{max-width:93%}header{padding:16px 14px 12px}main{padding:16px 14px 6px}form{padding:10px 14px calc(14px + env(safe-area-inset-bottom))}}