:root{--bg: #14161a;--panel: #1c1f25;--panel2: #23272f;--line: #2f343d;--text: #e7e9ec;--muted: #9aa2ad;--accent: #4da3ff;--accent2: #2b7fd4;--ok: #4caf7d;--warn: #d9a441;--err: #e05c5c;--radius: 10px}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:15px;line-height:1.5}.wrap{max-width:1180px;margin:0 auto;padding:20px 18px 60px}header{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;padding-bottom:18px;margin-bottom:22px;border-bottom:1px solid var(--line)}h1{margin:0;font-size:26px;letter-spacing:-.3px}.tagline{color:var(--muted);font-size:14px;margin-top:2px}.head-right{display:flex;align-items:center;gap:14px}.lang-toggle{display:flex;border:1px solid var(--line);border-radius:8px;overflow:hidden}.lang-toggle button{background:transparent;border:0;color:var(--muted);padding:6px 11px;cursor:pointer;font-size:13px}.lang-toggle button.active{background:var(--accent);color:#fff}.link{background:none;border:0;color:var(--muted);cursor:pointer;text-decoration:underline;font-size:14px}.cols{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:start}@media(max-width:900px){.cols{grid-template-columns:1fr}}section{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;margin-bottom:18px}section h3{margin:0 0 12px;font-size:15px;color:var(--accent);font-weight:600}.sticky{position:sticky;top:18px}.hint{color:var(--muted);font-size:12.5px;margin-top:5px;line-height:1.45}.login-box{max-width:340px;margin:60px auto;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px;display:flex;flex-direction:column;gap:10px}.login-box h2{margin:0 0 6px;font-size:19px}input[type=text],input[type=password],input[type=number],select{background:var(--panel2);border:1px solid var(--line);border-radius:8px;color:var(--text);padding:9px 11px;font-size:14px;font-family:inherit}input:focus,select:focus{outline:0;border-color:var(--accent)}input::placeholder{color:var(--muted)}button.primary,a.primary{background:var(--accent);color:#fff;border:0;border-radius:8px;padding:10px 16px;font-size:14px;font-weight:600;cursor:pointer;text-align:center;text-decoration:none;display:inline-block}button.primary:hover,a.primary:hover{background:var(--accent2)}button.primary:disabled{background:var(--panel2);color:var(--muted);cursor:not-allowed}.big{width:100%;padding:12px;font-size:15px;margin-top:12px}.err{color:var(--err);font-size:13px;margin-top:8px}.check{margin:10px 0 4px}.check label{display:flex;align-items:center;gap:8px;cursor:pointer;font-size:14px}.check input[type=checkbox]{width:16px;height:16px;accent-color:var(--accent);cursor:pointer}.drop{border:2px dashed var(--line);border-radius:var(--radius);padding:26px 16px;text-align:center;cursor:pointer;transition:border-color .15s,background .15s;background:var(--panel2)}.drop:hover,.drop.over{border-color:var(--accent);background:#202631}.drop-icon{font-size:26px;color:var(--muted);margin-bottom:4px}.drop-name{font-weight:600;word-break:break-all}.presets{display:flex;flex-direction:column;gap:9px}.preset{background:var(--panel2);border:1px solid var(--line);border-radius:8px;padding:11px 13px;text-align:left;cursor:pointer;color:var(--text);font-family:inherit}.preset:hover{border-color:#48505c}.preset.active{border-color:var(--accent);background:#1e2a3a}.preset-label{font-weight:600;font-size:14px}.preset-hint{color:var(--muted);font-size:12.5px;margin:3px 0 6px;line-height:1.4}.badge{display:inline-block;font-size:11px;padding:2px 7px;border-radius:20px;font-weight:600}.badge.ai{background:#33404f;color:#8fc4ff}.badge.noai{background:#2c3f35;color:#7fd3a5}.slider{margin:14px 0}.slider-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:4px}.slider-head label{font-size:14px}.slider-head .val{color:var(--accent);font-weight:600;font-size:13px;font-variant-numeric:tabular-nums}input[type=range]{width:100%;accent-color:var(--accent);cursor:pointer}.size-row{display:flex;align-items:center;gap:8px;margin:8px 0}.size-row input[type=number]{width:90px}.size-row span{color:var(--muted);font-size:14px}.preview{position:relative;background:#fff;border-radius:8px;min-height:260px;display:flex;align-items:center;justify-content:center;overflow:hidden}.preview img{max-width:100%;max-height:520px;display:block}.preview .empty{color:#999;font-size:14px;padding:40px;text-align:center}.preview .overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:#14161ab8;color:var(--text);display:flex;align-items:center;justify-content:center;font-size:14px}.result{margin-top:16px;padding-top:14px;border-top:1px solid var(--line)}.result h4{margin:0 0 10px;font-size:14px;color:var(--ok)}.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.kpis>div{background:var(--panel2);border-radius:8px;padding:9px 10px;text-align:center}.kpis span{display:block;color:var(--muted);font-size:11.5px}.kpis b{font-size:16px;font-variant-numeric:tabular-nums}