*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #0a0820;--card: #13112a;--border: #2d2a4a;--accent: #7c3aed;--accent-hover: #6d28d9;--accent-light: #ede9fe;--text: #e2e8f0;--text-muted: #94a3b8;--text-dim: #64748b;--success: #10b981;--radius: 10px;--radius-sm: 6px}html,body,#root{height:100%;background:var(--bg);color:var(--text);font-family:Inter,sans-serif;font-size:15px;line-height:1.6}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:99px}.navbar{display:flex;align-items:center;gap:12px;padding:0 20px;height:56px;background:var(--card);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100;flex-shrink:0}.navbar-logo{font-size:17px;font-weight:700;color:var(--text);text-decoration:none;white-space:nowrap}.navbar-status{display:flex;align-items:center;gap:6px;font-size:12px;font-weight:500;color:var(--success);background:#10b9811a;border:1px solid rgba(16,185,129,.25);border-radius:99px;padding:3px 10px;white-space:nowrap}.status-dot{width:7px;height:7px;border-radius:50%;background:var(--success);animation:pulse 2s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}.navbar-spacer{flex:1}.navbar-site-title{font-size:13px;color:var(--text-muted);max-width:160px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:9px 18px;border-radius:var(--radius-sm);font-size:14px;font-weight:600;cursor:pointer;border:none;transition:background .15s,opacity .15s,transform .1s;white-space:nowrap;text-decoration:none}.btn:active{transform:scale(.97)}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-hover)}.btn-primary:disabled{opacity:.45;cursor:not-allowed}.btn-sm{padding:6px 14px;font-size:13px}.btn-ghost{background:transparent;color:var(--text-muted);border:1px solid var(--border)}.btn-ghost:hover{background:var(--border);color:var(--text)}.spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite;display:inline-block;flex-shrink:0}@keyframes spin{to{transform:rotate(360deg)}}.landing{display:flex;flex-direction:column;min-height:100vh}.landing-hero{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px 24px;text-align:center}.landing-hero h1{font-size:clamp(28px,5vw,52px);font-weight:700;line-height:1.2;margin-bottom:18px;background:linear-gradient(135deg,#e2e8f0,#a78bfa);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.landing-hero p{font-size:clamp(15px,2vw,18px);color:var(--text-muted);max-width:500px;margin-bottom:36px}.landing-cta{margin-bottom:40px}.landing-cta .btn{font-size:16px;padding:14px 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transparent;cursor:pointer;transition:color .15s,border-color .15s}.tab-btn.active{color:var(--accent);border-bottom-color:var(--accent)}.builder-body{flex:1;display:flex;overflow:hidden}.build-panel{width:40%;min-width:0;display:flex;flex-direction:column;border-right:1px solid var(--border);overflow:hidden}.preview-panel{width:60%;min-width:0;display:flex;flex-direction:column;overflow:hidden}.chat-area{flex:1;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:14px}.chat-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;flex:1;gap:12px;color:var(--text-dim);text-align:center;padding:40px 20px}.chat-empty-icon{font-size:48px;opacity:.4}.chat-empty p{font-size:14px}.msg{max-width:85%;border-radius:var(--radius);padding:10px 14px;font-size:14px;line-height:1.5}.msg-user{align-self:flex-end;background:var(--accent);color:#fff;border-bottom-right-radius:3px}.msg-ai{align-self:flex-start;background:var(--card);border:1px solid var(--border);color:var(--text);border-bottom-left-radius:3px}.msg-ai-loading{align-self:flex-start;color:var(--text-muted);font-size:13px;display:flex;align-items:center;gap:8px;padding:8px 0}.prompt-box{padding:16px;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:10px;flex-shrink:0}.prompt-textarea{width:100%;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-family:inherit;font-size:14px;line-height:1.5;padding:10px 14px;resize:vertical;min-height:80px;transition:border-color .15s;outline:none}.prompt-textarea::placeholder{color:var(--text-dim)}.prompt-textarea:focus{border-color:var(--accent)}.prompt-actions{display:flex;justify-content:flex-end}.refine-bar{padding:12px 16px;border-top:1px solid var(--border);display:flex;gap:8px;flex-shrink:0}.refine-input{flex:1;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-family:inherit;font-size:13px;padding:8px 12px;outline:none;transition:border-color .15s}.refine-input::placeholder{color:var(--text-dim)}.refine-input:focus{border-color:var(--accent)}.preview-bar{display:flex;align-items:center;gap:10px;padding:10px 16px;border-bottom:1px solid var(--border);background:var(--card);flex-shrink:0}.preview-address{flex:1;background:var(--bg);border:1px solid var(--border);border-radius:99px;padding:5px 14px;font-size:13px;color:var(--text-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}.preview-frame-wrap{flex:1;position:relative;overflow:hidden}.preview-frame{width:100%;height:100%;border:none;background:#fff}.preview-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;gap:14px;color:var(--text-dim);text-align:center;padding:40px}.preview-empty-icon{font-size:56px;opacity:.25}.preview-empty p{font-size:14px}@media (max-width: 767px){.tab-bar{display:block}.builder-body{flex-direction:column}.build-panel,.preview-panel{width:100%;height:100%;border-right:none;position:absolute;top:0;left:0;transition:opacity .2s,transform .2s}.builder-body{position:relative}.build-panel.tab-hidden,.preview-panel.tab-hidden{opacity:0;pointer-events:none;transform:translate(-8px)}.preview-panel.tab-hidden{transform:translate(8px)}.navbar-site-title{display:none}.mobile-dl-bar{display:flex;align-items:center;gap:10px;padding:10px 16px;background:var(--card);border-top:1px solid var(--border);position:fixed;bottom:0;left:0;right:0;z-index:90;flex-shrink:0}.mobile-dl-bar .btn{flex:1}.builder-page{padding-bottom:60px}}@media (min-width: 768px){.mobile-dl-bar{display:none!important}}