@import"https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;700&family=Space+Grotesk:wght@400;500;600;700&display=swap";:root{--bg: #070b14;--bg-soft: #0f172a;--panel: rgba(15, 23, 42, .78);--panel-border: rgba(148, 163, 184, .22);--text: #e2e8f0;--muted: #94a3b8;--accent: #22c55e;--accent-soft: #34d399;--danger: #f87171;--paper: #f8fafc;--paper-text: #0f172a;--shadow-strong: 0 20px 65px rgba(2, 6, 23, .55)}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100%}body{font-family:DM Sans,sans-serif;background:radial-gradient(circle at 12% 12%,rgba(34,197,94,.15),transparent 40%),radial-gradient(circle at 88% 8%,rgba(96,165,250,.12),transparent 30%),var(--bg);color:var(--text)}.app-shell{position:relative;max-width:1180px;margin:0 auto;padding:24px 16px 56px}.background-grid{position:fixed;inset:0;pointer-events:none;background-image:linear-gradient(rgba(148,163,184,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(148,163,184,.06) 1px,transparent 1px);background-size:38px 38px;-webkit-mask-image:radial-gradient(circle at center,black 50%,transparent 100%);mask-image:radial-gradient(circle at center,black 50%,transparent 100%)}.hero{position:relative;z-index:1;margin:12px 0 24px}.chip{display:inline-flex;border:1px solid rgba(34,197,94,.4);color:var(--accent-soft);padding:6px 12px;border-radius:999px;font-size:13px;letter-spacing:.08em}h1,h2,h3{font-family:Space Grotesk,sans-serif;margin:0}.hero h1{margin-top:12px;font-size:clamp(30px,5vw,52px);line-height:1.1}.hero p{max-width:760px;color:var(--muted);margin:14px 0 0;line-height:1.6}.panel{position:relative;z-index:1;background:var(--panel);border:1px solid var(--panel-border);border-radius:18px;box-shadow:var(--shadow-strong);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.controls{padding:20px;display:grid;gap:14px}.field{display:grid;gap:8px}.field span{color:var(--muted);font-size:14px}input,select{width:100%;background:#0f172a80;border:1px solid rgba(148,163,184,.24);color:var(--text);border-radius:10px;padding:12px;font-size:15px;outline:none;transition:border-color .2s ease,box-shadow .2s ease}select:focus{border-color:#22c55e99;box-shadow:0 0 0 4px #22c55e24}input:focus{border-color:#22c55e99;box-shadow:0 0 0 4px #22c55e24}.mode-select{display:grid;grid-template-columns:1fr 1fr;gap:10px}.mode,.primary,.secondary{border-radius:12px;border:1px solid rgba(148,163,184,.3);color:var(--text);background:#0f172a99;padding:12px 14px;display:inline-flex;align-items:center;justify-content:center;gap:8px;cursor:pointer;font-weight:600;transition:all .22s ease}.mode:hover,.secondary:hover,.primary:hover{border-color:#22c55e8f}.mode.active{border-color:#22c55ecc;color:#dcfce7;background:#22c55e33}.actions{display:flex;gap:10px;flex-wrap:wrap}.actions.compact{justify-content:flex-end}.primary{border-color:#22c55ecc;background:linear-gradient(135deg,#22c55ee6,#16a34ae6);color:#052e16}button:disabled{opacity:.6;cursor:not-allowed}.status-line{display:flex;justify-content:space-between;gap:8px;color:var(--muted);font-size:14px}.ok{color:#86efac}.warn{color:#facc15}.error-box{border:1px solid rgba(248,113,113,.42);border-radius:12px;background:#7f1d1d4d;color:#fecaca;padding:10px 12px}.guide-grid{margin-top:16px;display:grid;grid-template-columns:1fr 1fr;gap:12px}.history-panel,.compare-panel{margin-top:16px;padding:16px}.history-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.history-head h2{display:inline-flex;align-items:center;gap:8px;font-size:21px}.history-empty{margin:12px 0 2px;color:var(--muted)}.timeline-grid{margin-top:14px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.timeline-card{border:1px solid rgba(148,163,184,.2);background:#0206177a;border-radius:12px;padding:14px}.timeline-card h3{margin-top:8px;font-size:18px}.timeline-card p{margin:8px 0 0;color:var(--muted);line-height:1.5}.history-model-line{margin:8px 0 0;color:#93c5fd;font-size:13px}.timeline-meta{display:flex;justify-content:space-between;color:#a7f3d0;font-size:13px}.compare-controls{margin-top:12px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.compare-grid{margin-top:14px;display:grid;gap:12px}.compare-row{border-radius:12px;border:1px solid rgba(148,163,184,.25);background:#02061761;padding:10px}.compare-row.changed{border-color:#22c55eb3;box-shadow:0 0 0 1px #22c55e40 inset}.compare-title{display:flex;justify-content:space-between;align-items:center;padding:2px 2px 10px}.compare-title span{color:#86efac;font-size:12px;letter-spacing:.08em;text-transform:uppercase}.compare-columns{display:grid;grid-template-columns:1fr 1fr;gap:10px}.guide-card{padding:18px}.guide-card h2{font-size:21px}.guide-card p{color:var(--muted);line-height:1.6;margin:10px 0 0}.reader{margin-top:18px;padding:16px}.reader-body{position:relative}.qa-panel{margin-top:12px;border:1px solid rgba(148,163,184,.25);border-radius:12px;background:#02061773;padding:12px;display:grid;gap:10px}.qa-head{display:flex;align-items:center;justify-content:space-between;gap:10px}.qa-head h4{margin:0;font-size:16px;color:#dcfce7}.qa-tip{margin:0;color:var(--muted);font-size:14px}.qa-log{max-height:280px;overflow:auto;display:grid;gap:8px}.qa-item{border:1px solid rgba(148,163,184,.2);border-radius:10px;padding:10px;background:#0f172a80}.qa-item.user{border-color:#22c55e73}.qa-item.assistant{border-color:#60a5fa66}.qa-item strong{display:inline-block;margin-bottom:4px;color:#a7f3d0;font-size:13px}.qa-item p{margin:6px 0}.qa-input-row{display:grid;grid-template-columns:1fr auto;gap:10px}.reader-topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}.preview-lang-switch{display:flex;gap:8px;margin-bottom:10px;align-items:center;flex-wrap:wrap}.preview-lang-switch .mode{padding:8px 12px;font-size:13px}.lang-tip{color:#94a3b8;font-size:12px}.reader-topbar p{color:var(--muted);margin:4px 0 0}.doc-frame{background:linear-gradient(180deg,#0a1020f5,#0f172af5);border-radius:14px;border:1px solid rgba(52,211,153,.28);min-height:420px;max-height:72vh;overflow:auto;padding:clamp(18px,3vw,36px);box-shadow:inset 0 1px #94a3b826,0 14px 40px #02061773;color:#e5e7eb;line-height:1.75}.doc-frame.lang-fade{animation:langFade .22s ease}.stream-mask{position:absolute;inset:0;z-index:2;border-radius:14px;background:linear-gradient(135deg,#020617d1,#0f172acc);border:1px solid rgba(52,211,153,.25);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;overflow:hidden}.stream-mask:before{content:"";position:absolute;inset:-50%;background:conic-gradient(from 0deg,transparent 0deg,rgba(52,211,153,.2) 90deg,transparent 180deg);animation:sweep 2.4s linear infinite}.stream-mask-core{position:relative;text-align:center;padding:24px 20px;border-radius:14px;border:1px solid rgba(148,163,184,.28);background:#020617a3;min-width:min(420px,84%)}.stream-orbit{width:48px;height:48px;margin:0 auto 12px;border-radius:50%;border:2px solid rgba(52,211,153,.25);border-top-color:#34d399;border-right-color:#22c55e;animation:spin .9s linear infinite}.stream-title{font-family:Space Grotesk,sans-serif;letter-spacing:.04em;color:#dcfce7;font-size:18px}.stream-subtitle{margin-top:8px;color:#94a3b8;font-size:14px}.doc-frame.mini{min-height:220px;max-height:340px;font-size:14px}.doc-frame h1,.doc-frame h2,.doc-frame h3,.doc-frame h4{font-family:Space Grotesk,sans-serif;margin:1.1em 0 .45em;color:#dcfce7}.doc-frame pre{background:#020617;color:#dbeafe;padding:12px;border-radius:10px;border:1px solid rgba(96,165,250,.25);overflow:auto}.doc-frame code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,Liberation Mono,monospace}.doc-frame blockquote{border-left:3px solid #22c55e;margin:0;padding-left:14px;color:#cbd5e1}.doc-frame a{color:#86efac}.doc-frame table{border-collapse:collapse}.doc-frame th,.doc-frame td{border:1px solid rgba(148,163,184,.35);padding:6px 8px}.modal-mask{position:fixed;inset:0;z-index:20;background:#02061799;display:flex;align-items:center;justify-content:center;padding:20px}.modal{width:min(660px,100%);border-radius:16px;border:1px solid rgba(148,163,184,.3);background:#020617;padding:18px;display:grid;gap:12px}.spin{animation:spin .8s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes sweep{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes langFade{0%{opacity:.45;transform:translateY(3px)}to{opacity:1;transform:translateY(0)}}@media(max-width:900px){.guide-grid,.mode-select{grid-template-columns:1fr}.reader-topbar{flex-direction:column;align-items:flex-start}.timeline-grid,.compare-columns,.compare-controls,.qa-input-row{grid-template-columns:1fr}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}