:root{--ink: #0D0E12;--ink-2: #1C1E27;--ink-3: #2E3142;--muted: #6B7280;--muted-2: #9CA3AF;--border: #E5E7EB;--border-2: #D1D5DB;--surface: #FAFAFA;--white: #FFFFFF;--blue: #2563EB;--blue-dim: #1D4ED8;--blue-faint: #EFF6FF;--blue-mid: #DBEAFE;--green: #059669;--green-faint: #ECFDF5;--amber: #D97706;--amber-faint: #FFFBEB;--red: #DC2626;--red-faint: #FEF2F2;--purple: #7C3AED;--purple-faint: #F5F3FF;--indigo: #194f85;--indigo-bright: #4338CA;--mono: "DM Mono", monospace;--sans: "DM Sans", sans-serif;--display: "Syne", sans-serif;--headline: "Space Grotesk", "DM Sans", sans-serif;--editorial: "Newsreader", "Lora", Georgia, "Times New Roman", serif}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--sans);background:#f0f1f5;color:var(--ink);line-height:1.5;overflow:hidden}.app-frame{border:1px solid var(--border-2);border-radius:10px;overflow:hidden;box-shadow:0 4px 24px #0000000f,0 1px 4px #0000000a;background:var(--white)}.screen-page{padding:24px 40px;height:100vh;display:flex;flex-direction:column}.app-header{background:var(--indigo);color:#fff;display:flex;align-items:center;padding:0;height:60px;gap:0;border-bottom:1px solid rgba(255,255,255,.1)}.app-logo-img{height:52px;width:auto;display:block;object-fit:contain}@keyframes fadeSlideUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.auth-canvas{position:relative;flex:1;overflow:hidden;background:#fff}.auth-text-overlay{position:absolute;left:52px;top:50%;transform:translateY(-50%);width:420px;max-height:calc(100vh - 140px);overflow-y:auto;z-index:3;scrollbar-width:none}.auth-text-overlay::-webkit-scrollbar{display:none}.auth-signin-overlay{position:absolute;right:48px;top:50%;transform:translateY(-50%);z-index:10;border-radius:20px;overflow:hidden;box-shadow:0 32px 80px #0a0c1429,0 8px 24px #0a0c141a,0 0 0 1px #0a0c140a}.auth-hero-img{position:absolute;top:50%;left:calc(47% + 50px);transform:translate(-50%,-50%);width:53%;height:auto;z-index:1;-webkit-mask-image:radial-gradient(ellipse 84% 84% at 50% 50%,black 28%,transparent 100%);mask-image:radial-gradient(ellipse 84% 84% at 50% 50%,black 28%,transparent 100%);pointer-events:none;-webkit-user-select:none;user-select:none}.auth-gradient-overlay{position:absolute;top:0;right:0;bottom:0;left:0;z-index:2;pointer-events:none;background:linear-gradient(to right,#fff,#fff 12%,#ffffffb8 32%,#ffffff1a 46%,#fff0 56%,#fff0 76%,#ffffff8c,#fff)}@media (max-width: 1100px){.auth-hero-img{width:55%}.auth-signin-overlay{right:24px}.auth-text-overlay{left:36px;width:320px}}@media (max-width: 720px){.auth-canvas{overflow-y:auto}.auth-hero-img,.auth-gradient-overlay{display:none}.auth-text-overlay{position:static;transform:none;width:auto;max-height:none;padding:36px 24px 24px}.auth-signin-overlay{position:static;transform:none;border-radius:0;box-shadow:none;display:flex;justify-content:center;padding:0 24px 40px}}.app-logo{font-family:var(--display);font-size:14px;font-weight:700;letter-spacing:1px;display:flex;align-items:center;gap:8px;color:#e2e8f0}.app-logo .dot{width:7px;height:7px;background:var(--blue);border-radius:50%}.status-pill{display:flex;align-items:center;gap:8px;font-family:var(--mono);font-size:11px;padding:4px 12px;border-radius:20px;margin-right:12px}.status-pill.idle{background:#ffffff0f;color:#fff6}.status-pill.running{background:#2563eb33;color:#93c5fd}.status-pill.paused{background:#d9770633;color:#fcd34d}.status-pill.done{background:#05966933;color:#6ee7b7}.status-pill.error{background:#dc262633;color:#fca5a5}.pulse{width:6px;height:6px;background:#93c5fd;border-radius:50%;animation:pulse 1.5s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.8)}}.pulse.amber{background:#fcd34d}.pulse.green{background:#6ee7b7}.header-right{margin-left:auto;display:flex;align-items:center;gap:16px}.three-panel{display:grid;grid-template-columns:360px 1fr 1.5fr;flex:1;overflow:hidden}.resize-handle{width:1px!important;background:#6366f126;transition:background .2s,width .2s;cursor:col-resize;position:relative;z-index:50;outline:none!important}.resize-handle:hover,.resize-handle:active{background:#6366f199!important;width:3px!important}.resize-handle:after{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:1px;height:24px;background:#6366f166;border-radius:1px}.panel{height:100%;overflow:hidden;display:flex;flex-direction:column;min-width:280px}.panel+.panel{border-left:1px solid var(--border)}.panel-header{padding:10px 16px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;background:var(--surface);flex-shrink:0;height:40px}.panel-title{font-family:var(--mono);font-size:10px;letter-spacing:1.5px;text-transform:uppercase;color:var(--muted);font-weight:500}.narration-strip{display:flex;gap:10px;align-items:baseline;padding:9px 16px;background:#eef4fd;border-bottom:1px solid #c8ddf5;flex-shrink:0}.narration-label{font-family:var(--mono);font-size:9px;font-weight:700;letter-spacing:1.2px;color:#194f85;flex-shrink:0;padding-top:1px}.narration-text{font-family:var(--sans);font-size:12px;line-height:1.55;color:var(--ink-2);margin:0}.panel-body{flex:1;overflow-y:auto;padding:16px}.article-textarea{width:100%;flex:1;min-height:320px;background:var(--surface);border:1px solid var(--border);border-radius:6px;padding:14px;font-family:var(--sans);font-size:13px;font-weight:300;color:var(--ink);resize:none;line-height:1.7;margin-bottom:8px;outline:none;transition:border-color .2s}.article-textarea:focus{border-color:var(--blue)}.textarea-meta{display:flex;justify-content:space-between;font-family:var(--mono);font-size:10px;color:var(--muted-2);margin-bottom:12px}.upload-zone{border:1.5px dashed var(--border-2);border-radius:6px;padding:16px;text-align:center;margin-bottom:12px;cursor:pointer;transition:all .15s;display:block}.upload-zone:hover,.upload-zone.active{border-color:var(--blue);background:var(--blue-faint)}.upload-icon{font-size:20px;display:block;margin:0 auto 6px}.upload-zone p{font-size:12px;color:var(--muted);font-weight:300}.upload-zone span{font-size:11px;color:var(--muted-2);font-family:var(--mono)}.optimize-btn{width:100%;padding:11px;background:var(--blue);color:#fff;border:none;border-radius:6px;font-family:var(--display);font-size:13px;font-weight:600;letter-spacing:.3px;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;transition:background .2s}.optimize-btn:hover:not(.disabled){background:var(--blue-dim)}.optimize-btn:active:not(.disabled){background:var(--indigo-bright);transform:translateY(1px)}@keyframes btn-spin{to{transform:rotate(360deg)}}.btn-spinner{width:14px;height:14px;border:2px solid rgba(255,255,255,.35);border-top-color:#fff;border-radius:50%;animation:btn-spin .7s linear infinite;flex-shrink:0}@keyframes result-spin{to{transform:rotate(360deg)}}.result-loader{width:36px;height:36px;border:3px solid var(--border);border-top-color:var(--blue);border-radius:50%;animation:result-spin .9s linear infinite}.optimize-btn.disabled{background:var(--border-2);color:var(--muted-2);cursor:not-allowed}.export-btn{border:1px solid var(--border);background:#fff;padding:6px 12px;border-radius:4px;font-size:11px;display:flex;align-items:center;gap:6px;cursor:pointer;font-family:var(--mono);transition:background .15s,border-color .15s;color:var(--ink)}.export-btn:hover{background:var(--surface);border-color:var(--border-2)}.export-btn:active{background:var(--blue-faint);border-color:var(--blue)}.export-btn:disabled{opacity:.55;cursor:not-allowed}.diff-article{font-family:var(--sans);font-size:13px;line-height:1.8;color:var(--ink)}.diff-article p{margin:0 0 4px}.diff-para-unchanged{margin-bottom:14px;color:var(--ink);font-size:13px;line-height:1.8}.diff-change-unit{margin-bottom:14px;border-radius:6px;border:1px solid var(--border);overflow:hidden}.diff-para-old{background:#fee2e2;padding:10px 14px;border-left:3px solid #dc2626;font-size:13px;line-height:1.8;color:#7f1d1d;text-decoration:line-through;opacity:.8}.diff-para-old.clean{background:transparent;border-left:3px solid var(--border-2);text-decoration:none;opacity:1;color:var(--ink)}.diff-para-new{background:#d1fae5;padding:10px 14px;border-left:3px solid #059669;font-size:13px;line-height:1.8;color:var(--ink)}.diff-para-new.accepted{background:#f0fdf4;border-left-color:#86efac}.diff-para-actions{display:flex;gap:6px;padding:6px 12px;background:var(--surface);border-top:1px solid var(--border)}.patch-btn{font-size:10px;padding:2px 8px;border-radius:3px;cursor:pointer;border:1px solid;line-height:1.5;font-family:var(--mono);background:#fff}.patch-btn.accept{color:#059669;border-color:#059669;background:#ecfdf5}.patch-btn.accept.active{background:#059669;color:#fff}.patch-btn.reject{color:#dc2626;border-color:#dc2626;background:#fef2f2}.patch-btn.reject.active{background:#dc2626;color:#fff}.patch-btn:hover{opacity:.8}.agent-card{border:1px solid var(--border);border-radius:7px;margin-bottom:8px;overflow:hidden;transition:all .2s;background:#fff}.agent-card.active{border-color:var(--blue);box-shadow:0 0 0 3px #2563eb14}.agent-card.warning{border-color:var(--amber)}.agent-card.done{border-color:var(--border)}.agent-card.idle{opacity:.5}.agent-card-header{display:flex;align-items:center;gap:10px;padding:10px 12px;background:#fff}.agent-card.active .agent-card-header{background:var(--blue-faint)}.agent-card.warning .agent-card-header{background:var(--amber-faint)}.agent-card.done .agent-card-header{background:var(--green-faint)}.agent-events{border-top:1px solid var(--border);padding:10px 12px;background:var(--surface);max-height:200px;overflow-y:auto}.event-row{font-family:var(--mono);font-size:11px;margin-bottom:5px;display:flex;gap:8px;align-items:flex-start}.event-time{color:var(--muted-2);flex-shrink:0;font-size:10px;padding-top:1px}.event-msg{color:var(--ink-3);font-size:12px;line-height:1.45}.text-blue{color:var(--blue)}.text-green{color:var(--green)}.text-red{color:var(--red)}.lucide-spin{animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-2);border-radius:2px}.pulse-icon{animation:pulse-icon 2s ease-in-out infinite}@keyframes pulse-icon{0%,to{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.9)}}.app-footer{flex-shrink:0;background:#2b2d33;color:#9ca3af;display:flex;align-items:center;justify-content:space-between;padding:0 20px;height:44px;gap:16px;border-top:1px solid rgba(255,255,255,.07)}.app-footer-logo-link{display:flex;align-items:center;flex-shrink:0}.app-footer-logo{height:13px;width:auto;display:block;object-fit:contain;opacity:.85;transition:opacity .15s ease}.app-footer-logo-link:hover .app-footer-logo{opacity:1}.app-footer-text{display:flex;align-items:center;gap:20px;font-size:10.5px;color:#cbd5e1;white-space:nowrap}.app-footer-text span{line-height:1.4}