/* code/chat — '대화' 탭 (Claude 스트리밍). 기존 코드 생성기 다크 톤에 맞춤 */
#chatApp{flex:1;display:flex;min-height:0;background:#1a1a1a;color:#ececec;font-family:"Pretendard","Malgun Gothic","Apple SD Gothic Neo",system-ui,sans-serif}
#chatApp[hidden]{display:none}
body.chat-mode .main-container{display:none}

/* 왼쪽 대화 목록 */
.ch-side{width:250px;flex-shrink:0;background:#202020;border-right:1px solid #333;display:flex;flex-direction:column;min-height:0}
.ch-new{margin:14px;padding:10px 12px;border-radius:10px;border:1px solid #3b3b3b;background:#2a2a2a;color:#ececec;font:inherit;font-size:13.5px;font-weight:600;cursor:pointer;text-align:left}
.ch-new:hover{background:#333}
.ch-list{flex:1;overflow-y:auto;padding:0 8px 12px}
.ch-list-label{font-size:11px;color:#8a8a8a;padding:6px 8px;letter-spacing:.04em}
.ch-item{display:flex;align-items:center;gap:6px;width:100%;padding:8px 10px;border-radius:8px;border:0;background:transparent;color:#cfcfcf;font:inherit;font-size:13px;cursor:pointer;text-align:left}
.ch-item span{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ch-item:hover{background:#2a2a2a}
.ch-item.on{background:#303030;color:#fff}
.ch-item i{font-style:normal;color:#777;font-size:12px;padding:0 4px;border-radius:4px;visibility:hidden}
.ch-item:hover i{visibility:visible}
.ch-item i:hover{color:#f87171}
.ch-side-foot{padding:10px 14px;border-top:1px solid #333;font-size:11px;color:#7a7a7a;line-height:1.5}

/* 본문 */
.ch-main{flex:1;display:flex;flex-direction:column;min-width:0;min-height:0}
.ch-top{display:flex;align-items:center;gap:8px;padding:10px 16px;border-bottom:1px solid #2c2c2c;flex-wrap:wrap}
.ch-modes{display:flex;gap:4px;flex-wrap:wrap}
.ch-modes button{padding:6px 12px;border-radius:8px;border:1px solid #3a3a3a;background:#262626;color:#bdbdbd;font:inherit;font-size:12.5px;cursor:pointer}
.ch-modes button.on{background:#d97757;border-color:#d97757;color:#fff;font-weight:600}
.ch-model{margin-left:auto;display:flex;align-items:center;gap:8px;font-size:12px;color:#a3a3a3}
.ch-model b{color:#e8a387;font-weight:600}
.ch-model select{background:#262626;color:#ddd;border:1px solid #3a3a3a;border-radius:6px;padding:4px 6px;font:inherit;font-size:12px}
.ch-icon-btn{padding:5px 9px;border-radius:7px;border:1px solid #3a3a3a;background:#262626;color:#cfcfcf;font:inherit;font-size:12px;cursor:pointer}
.ch-icon-btn:hover{background:#303030}
.ch-menu-btn{display:none}

.ch-scroll{flex:1;overflow-y:auto;min-height:0}
.ch-thread{max-width:820px;margin:0 auto;padding:24px 20px 40px}
.ch-empty{max-width:640px;margin:12vh auto 0;text-align:center;padding:0 20px}
.ch-empty h2{font-size:26px;font-weight:600;margin:0 0 8px;color:#f2f2f2}
.ch-empty h2 span{color:#e8a387}
.ch-empty p{color:#9a9a9a;font-size:14px;margin:0 0 22px}
.ch-starters{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;text-align:left}
.ch-starters button{padding:12px 14px;border-radius:12px;border:1px solid #333;background:#222;color:#d6d6d6;font:inherit;font-size:13px;line-height:1.5;cursor:pointer}
.ch-starters button:hover{background:#2a2a2a;border-color:#444}
.ch-starters b{display:block;color:#f0f0f0;margin-bottom:2px;font-size:13.5px}

.ch-msg{margin:0 0 26px}
.ch-user{display:flex;flex-direction:column;align-items:flex-end}
.ch-bubble{max-width:85%;background:#2f2f2f;border-radius:16px;padding:10px 15px;font-size:14.5px;line-height:1.65;white-space:pre-wrap;overflow-wrap:anywhere}
.ch-atts{display:flex;flex-wrap:wrap;gap:6px;justify-content:flex-end;margin-bottom:6px;max-width:85%}
.ch-att{display:inline-flex;align-items:center;gap:6px;padding:5px 9px;border-radius:9px;background:#262626;border:1px solid #383838;font-size:12px;color:#cfcfcf}
.ch-att img{width:46px;height:46px;object-fit:cover;border-radius:6px}
.ch-att button{border:0;background:none;color:#888;cursor:pointer;font-size:13px;padding:0 0 0 2px}
.ch-att button:hover{color:#f87171}

.ch-bot{display:flex;gap:12px;align-items:flex-start}
.ch-avatar{flex-shrink:0;width:28px;height:28px;border-radius:8px;background:#d97757;display:grid;place-items:center;font-size:15px;color:#fff;margin-top:2px}
.ch-bot-body{flex:1;min-width:0}
.ch-think{margin:0 0 10px;border-left:2px solid #444;padding:0 0 0 12px}
.ch-think summary{cursor:pointer;color:#9a9a9a;font-size:12.5px;list-style:none;user-select:none}
.ch-think summary::-webkit-details-marker{display:none}
.ch-think summary::before{content:"▸ ";}
.ch-think[open] summary::before{content:"▾ ";}
.ch-think div{color:#9a9a9a;font-size:12.8px;line-height:1.65;white-space:pre-wrap;margin-top:6px;max-height:280px;overflow-y:auto}
.ch-dots{display:inline-flex;gap:4px;padding:8px 0}
.ch-dots i{width:7px;height:7px;border-radius:50%;background:#d97757;animation:chDot 1.1s infinite ease-in-out}
.ch-dots i:nth-child(2){animation-delay:.15s}.ch-dots i:nth-child(3){animation-delay:.3s}
@keyframes chDot{0%,80%,100%{opacity:.25;transform:scale(.85)}40%{opacity:1;transform:scale(1)}}
.ch-caret::after{content:"▍";color:#d97757;animation:chBlink 1s steps(2) infinite}
@keyframes chBlink{50%{opacity:0}}

/* 마크다운 */
.ch-md{font-size:14.5px;line-height:1.75;color:#e6e6e6;overflow-wrap:anywhere}
.ch-md>*:first-child{margin-top:0}
.ch-md p{margin:0 0 12px}
.ch-md h1,.ch-md h2,.ch-md h3,.ch-md h4{color:#f5f5f5;margin:20px 0 8px;line-height:1.35}
.ch-md h1{font-size:20px}.ch-md h2{font-size:18px}.ch-md h3{font-size:16px}.ch-md h4{font-size:15px}
.ch-md ul,.ch-md ol{margin:0 0 12px;padding-left:22px}
.ch-md li{margin:3px 0}
.ch-md li>ul,.ch-md li>ol{margin:4px 0 0}
.ch-md blockquote{margin:0 0 12px;padding:4px 14px;border-left:3px solid #555;color:#bdbdbd}
.ch-md hr{border:0;border-top:1px solid #3a3a3a;margin:18px 0}
.ch-md a{color:#7cb3ff}
.ch-md code{font-family:Consolas,"JetBrains Mono",monospace;font-size:.9em;background:#2b2b2b;border:1px solid #383838;padding:1px 5px;border-radius:5px;color:#f0b48c}
.ch-md table{border-collapse:collapse;margin:0 0 14px;font-size:13.5px;display:block;overflow-x:auto;max-width:100%}
.ch-md th,.ch-md td{border:1px solid #3a3a3a;padding:6px 10px;text-align:left;vertical-align:top}
.ch-md th{background:#262626;color:#f2f2f2}
.ch-code{margin:0 0 14px;border:1px solid #333;border-radius:10px;overflow:hidden;background:#141414}
.ch-code-head{display:flex;align-items:center;justify-content:space-between;padding:6px 12px;background:#242424;font-size:12px;color:#a3a3a3;font-family:Consolas,monospace}
.ch-code-head button{border:0;background:none;color:#bdbdbd;font:inherit;font-size:12px;cursor:pointer}
.ch-code-head button:hover{color:#fff}
.ch-code pre{margin:0;padding:12px 14px;overflow-x:auto;font-family:Consolas,"JetBrains Mono",monospace;font-size:13px;line-height:1.6;color:#e8e8e8;white-space:pre}
.ch-code pre code{background:none;border:0;padding:0;color:inherit;font-size:inherit}

.ch-actions{display:flex;gap:4px;margin-top:6px;flex-wrap:wrap;align-items:center}
.ch-actions button{border:0;background:none;color:#8a8a8a;font:inherit;font-size:12px;padding:4px 7px;border-radius:6px;cursor:pointer}
.ch-actions button:hover{background:#2a2a2a;color:#e6e6e6}
.ch-actions .ch-meta{font-size:11px;color:#666;margin-left:4px}
.ch-note{margin-top:8px;padding:8px 12px;border-radius:10px;font-size:13px;line-height:1.6}
.ch-note.err{background:#3a1d1d;color:#fca5a5}
.ch-note.warn{background:#3a2e17;color:#fcd34d}
.ch-note button{margin-left:6px;border:1px solid currentColor;background:none;color:inherit;border-radius:6px;padding:2px 9px;font:inherit;font-size:12px;cursor:pointer}

/* 입력창 */
.ch-composer-wrap{padding:0 20px 16px}
.ch-composer{max-width:820px;margin:0 auto;background:#262626;border:1px solid #3a3a3a;border-radius:18px;padding:10px 12px 8px;transition:border-color .15s}
.ch-composer:focus-within{border-color:#5a5a5a}
.ch-composer.drag{border-color:#d97757;background:#2b2420}
.ch-composer .ch-atts{justify-content:flex-start;max-width:none;margin-bottom:8px}
.ch-composer textarea{width:100%;border:0;outline:0;resize:none;background:transparent;color:#f0f0f0;font:inherit;font-size:14.5px;line-height:1.6;max-height:260px;min-height:26px;padding:2px 4px}
.ch-composer textarea::placeholder{color:#7d7d7d}
.ch-comp-row{display:flex;align-items:center;gap:8px;margin-top:6px}
.ch-attach{border:0;background:none;color:#a3a3a3;font-size:18px;cursor:pointer;padding:2px 6px;border-radius:7px}
.ch-attach:hover{background:#333;color:#fff}
.ch-code-input{display:none;align-items:center;gap:6px;font-size:12px;color:#fcd34d}
.ch-code-input.on{display:flex}
.ch-code-input input{background:#1d1d1d;border:1px solid #555;border-radius:6px;color:#fff;padding:4px 8px;font:inherit;font-size:12px;width:140px}
.ch-send{margin-left:auto;width:34px;height:34px;border-radius:10px;border:0;background:#d97757;color:#fff;font-size:17px;cursor:pointer;display:grid;place-items:center}
.ch-send:disabled{background:#4a4a4a;color:#888;cursor:default}
.ch-send.stop{background:#e5e5e5;color:#1a1a1a}
.ch-hint{max-width:820px;margin:6px auto 0;text-align:center;font-size:11px;color:#6f6f6f}

@media (max-width:768px){
  body.chat-mode{height:100vh;height:100dvh;min-height:0;overflow:hidden}
  body.chat-mode .header{position:static;padding:8px 14px}
  body.chat-mode .header .prompt-copy-btn{display:none}
  .ch-side{position:fixed;z-index:50;top:0;bottom:0;left:0;transform:translateX(-100%);transition:transform .2s;box-shadow:4px 0 20px rgba(0,0,0,.5)}
  .ch-side.open{transform:none}
  .ch-menu-btn{display:inline-block}
  .ch-model{margin-left:0;width:100%;justify-content:flex-end}
  .ch-thread{padding:18px 14px 30px}
  .ch-starters{grid-template-columns:1fr}
  .ch-bubble{max-width:92%}
  .ch-composer-wrap{padding:0 10px 10px}
  .ch-empty{margin-top:6vh}
}