:root{--bg:#07080b;--bg-soft:#0e1117;--panel:#151821;--panel-strong:#1d222d;--line:#2d3441;--text:#f5f7fb;--muted:#9aa5b4;--muted-2:#6f7a88;--accent:#2dd4bf;--accent-2:#60a5fa;--danger:#f87171;--warning:#fbbf24}*{box-sizing:border-box}html,body{min-height:100%}body{background:radial-gradient(circle at 15% 15%, #2dd4bf1f, transparent 30%), radial-gradient(circle at 80% 10%, #60a5fa1f, transparent 28%), var(--bg);color:var(--text);letter-spacing:0;margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}button,input,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed}a{color:inherit}.app-shell{min-height:100vh;padding:28px}.workspace{grid-template-columns:minmax(330px,430px) minmax(0,1fr);gap:18px;max-width:1460px;margin:0 auto;display:grid}.control-panel,.preview-panel{border:1px solid var(--line);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#0e1117d1;height:calc(100vh - 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0;background-repeat:repeat,repeat,repeat,repeat,repeat;background-size:20px 20px;background-attachment:scroll,scroll,scroll,scroll,scroll;background-origin:padding-box,padding-box,padding-box,padding-box,padding-box;background-clip:border-box,border-box,border-box,border-box,border-box;place-items:center;min-height:0;padding:18px;display:grid;position:relative}.result-image{object-fit:contain;border-radius:8px;max-width:100%;max-height:calc(100vh - 190px);box-shadow:0 18px 60px #0000005c}.empty-state{color:var(--muted);text-align:center;place-items:center;gap:10px;padding:26px;display:grid}.empty-state strong{color:var(--text);font-size:17px}.error-box{color:#fecaca;background:#7f1d1d38;border:1px solid #f8717173;border-radius:8px;padding:12px;font-size:13px}.result-meta{color:var(--muted);flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;display:flex}.meta-chip{border:1px solid var(--line);background:#1d222db8;border-radius:999px;padding:7px 9px}.spinner{border:2px solid #ffffff47;border-top-color:var(--accent);border-radius:50%;width:18px;height:18px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width:980px){.app-shell{padding:14px}.workspace{grid-template-columns:1fr}.control-panel,.preview-panel{height:auto;min-height:auto}.canvas{min-height:360px}.result-image{max-height:64vh}}.chat-page{flex-direction:column;height:100vh;display:flex}.chat-header{border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#0e1117eb;flex-shrink:0;justify-content:space-between;align-items:center;gap:16px;padding:14px 24px;display:flex}.chat-back{color:var(--muted);white-space:nowrap;font-size:14px;text-decoration:none}.chat-back:hover{color:var(--text)}.chat-title{text-align:center;flex:1;font-size:16px;font-weight:760}.provider-toggle{gap:6px;display:flex}.provider-btn{border:1px solid var(--line);color:var(--muted);background:#151821b8;border-radius:8px;padding:6px 12px;font-size:13px;font-weight:620}.provider-btn:hover{color:var(--text);border-color:#435064}.provider-btn.active{color:var(--accent);background:#2dd4bf14;border-color:#2dd4bfb8}.chat-messages{flex-direction:column;flex:1;gap:16px;padding:24px;display:flex;overflow-y:auto}.chat-msg-row{align-items:flex-start;gap:12px;width:100%;max-width:820px;display:flex}.chat-msg-row.user{flex-direction:row-reverse;align-self:flex-end}.chat-msg-row.assistant{align-self:flex-start}.chat-avatar{background:var(--panel-strong);width:32px;height:32px;color:var(--accent);border:1px solid var(--line);border-radius:50%;flex-shrink:0;place-items:center;font-size:11px;font-weight:760;display:grid}.chat-msg-row.user .chat-avatar{color:var(--accent-2)}.chat-bubble{white-space:pre-wrap;word-break:break-word;border-radius:12px;max-width:72%;padding:12px 16px;font-size:14px;line-height:1.6}.chat-bubble.assistant{background:var(--panel);border:1px solid var(--line);border-radius:12px 12px 12px 4px}.chat-bubble.user{background:linear-gradient(135deg, var(--accent), var(--accent-2));color:#05100f;border-radius:12px 12px 4px}.chat-typing{align-items:center;gap:5px;padding:14px 18px;display:flex}.chat-typing span{background:var(--muted);border-radius:50%;width:6px;height:6px;animation:1.2s ease-in-out infinite chat-bounce;display:block}.chat-typing span:nth-child(2){animation-delay:.2s}.chat-typing span:nth-child(3){animation-delay:.4s}@keyframes chat-bounce{0%,60%,to{opacity:.4;transform:translateY(0)}30%{opacity:1;transform:translateY(-5px)}}.chat-error{margin:0 4px}.chat-input-wrap{border-top:1px solid var(--line);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#0e1117eb;flex-shrink:0;align-items:flex-end;gap:10px;padding:16px 24px;display:flex}.chat-input{resize:none;border:1px solid var(--line);min-height:46px;max-height:200px;color:var(--text);background:#080a0fc2;border-radius:8px;outline:none;flex:1;padding:12px 13px;line-height:1.5;overflow-y:auto}.chat-input:focus{border-color:#2dd4bfb3}.chat-input:disabled{opacity:.6}.chat-send-btn{color:#05100f;background:linear-gradient(135deg, var(--accent), var(--accent-2));border:none;border-radius:8px;flex-shrink:0;width:46px;height:46px;font-size:20px;font-weight:760}.chat-send-btn:disabled{color:#4a5564;background:#252b35}.chat-nav-link{border:1px solid var(--line);color:var(--muted);white-space:nowrap;background:#1d222db3;border-radius:999px;align-items:center;gap:6px;padding:8px 12px;font-size:12px;text-decoration:none;display:inline-flex}.chat-nav-link:hover{color:var(--text);border-color:#435064}@media (max-width:640px){.chat-messages{padding:16px}.chat-input-wrap{padding:12px 16px}.chat-bubble{max-width:85%}.chat-header{padding:12px 16px}}@media (max-width:520px){.brand-row,.preview-header,.preview-footer{flex-direction:column;align-items:flex-start}.action-row{grid-template-columns:1fr}.model-option{grid-template-columns:36px 1fr}.model-icon{width:36px;height:36px}.credit{grid-column:2}}