:root{--bg: #f6f7f9;--surface: #ffffff;--line: #dfe3e8;--line-strong: #c6ccd4;--ink: #1b2027;--ink-2: #5b6672;--ink-3: #8a94a0;--accent: #0f7a5a;--accent-ink: #ffffff;--accent-soft: #e6f4ee;--danger: #b4231f;--radius: 10px}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--ink);font:15px/1.55 -apple-system,Segoe UI,system-ui,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}.mono{font-family:ui-monospace,Cascadia Mono,Consolas,Courier New,monospace;font-size:13px}.masthead{background:var(--surface);border-bottom:1px solid var(--line)}.masthead-inner{max-width:1180px;margin:0 auto;padding:26px 20px 20px}.masthead h1{margin:0;font-size:24px;letter-spacing:-.01em}.tagline{margin:4px 0 0;color:var(--ink-2);font-size:14.5px}.privacy{margin:12px 0 0;display:inline-flex;align-items:center;gap:7px;color:var(--accent);background:var(--accent-soft);border:1px solid #cbe6da;border-radius:999px;padding:5px 13px 5px 10px;font-size:12.5px}.lock-icon{width:15px;height:15px;flex:none}.page{max-width:1180px;margin:0 auto;padding:20px 20px 44px}.columns{display:grid;grid-template-columns:320px minmax(0,1fr);gap:18px;margin-top:18px;align-items:start}.col-left,.col-right{display:flex;flex-direction:column;gap:14px;min-width:0}@media(max-width:880px){.columns{grid-template-columns:1fr}}.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:16px 16px 18px}.panel h2{margin:0 0 13px;font-size:11.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3)}.panel h2 .sub{text-transform:none;letter-spacing:0;font-weight:400;font-size:11.5px;margin-left:6px}.dropzone{background:var(--surface);border:2px dashed var(--line-strong);border-radius:14px;padding:26px 20px 22px;text-align:center;cursor:pointer;outline:none;transition:border-color .12s,background .12s}.dropzone:hover,.dropzone:focus-visible{border-color:var(--accent)}.dropzone.drag{border-color:var(--accent);background:var(--accent-soft)}.dz-icon{width:32px;height:32px;color:var(--accent)}.dz-title{margin:4px 0 0;font-size:17px;font-weight:600}.dz-sub{margin:6px 0 8px;color:var(--ink-3);font-size:12.5px}.dz-hint{margin:12px 0 0;color:var(--ink-3);font-size:12.5px}.file-chip{margin:12px 0 0;display:inline-flex;gap:10px;align-items:baseline;background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-size:13px}.file-chip span:last-child{color:var(--ink-3);font-size:12px}.error{margin-top:12px;background:#fdf0ef;border:1px solid #f0c8c6;color:var(--danger);padding:10px 13px;border-radius:var(--radius);font-size:13.5px}.busy{margin-top:12px;color:var(--ink-2);font-size:13.5px}.field{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:9px}.field label{color:var(--ink-2);font-size:13.5px}.numbox,.ro{display:inline-flex;align-items:center;gap:6px}.field input[type=number],.field input[type=text],select{font:inherit;font-size:14px;color:var(--ink);background:var(--surface);border:1px solid var(--line-strong);border-radius:7px;padding:6px 9px;width:92px;text-align:right}select{width:auto;text-align:left;min-width:118px}.field input:focus,select:focus{outline:2px solid var(--accent);outline-offset:1px}.numbox i,.ro i{font-style:normal;color:var(--ink-3);font-size:12px}.numbox i{width:28px}.field.readonly{display:block}.field.readonly label{display:block;margin-bottom:4px}.field.readonly .ro{width:100%}.field.readonly input[readonly]{width:100%;text-align:left;background:#f4f5f7;color:var(--ink-2);cursor:default}.ro i.tag{white-space:nowrap}.field-error{margin:2px 0 0;color:var(--danger);font-size:12.5px}.note{margin:8px 0 0;color:var(--ink-3);font-size:12.5px}.btn{font:inherit;font-weight:600;border:1px solid transparent;border-radius:8px;padding:10px 16px;cursor:pointer;text-decoration:none;display:inline-block;text-align:center}.btn.primary{background:var(--accent);color:var(--accent-ink)}.btn.primary:hover{background:#0c6a4e}.btn.primary[disabled]{opacity:.55;cursor:not-allowed}.btn.secondary{background:var(--surface);color:var(--ink);border-color:var(--line-strong)}.btn.secondary:hover{border-color:var(--ink-3)}.btn.link{background:none;border:0;color:var(--accent);padding:6px 0 0;font-size:12.5px;font-weight:500;text-align:left}.btn.link:hover{text-decoration:underline}.empty{color:var(--ink-3);font-size:14px;margin:8px 0 4px}.hero{margin:0 0 12px;color:var(--ink-2);font-size:14px}.hero strong{font-size:34px;color:var(--ink);margin-right:7px;vertical-align:-2px;letter-spacing:-.02em}dl.readout{display:grid;grid-template-columns:auto minmax(0,1fr);gap:5px 20px;margin:0}dl.readout dt{color:var(--ink-2);font-size:13.5px}dl.readout dd{margin:0;font-size:13.5px;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}.ruler{display:flex;justify-content:space-between;color:var(--ink-3);font-size:11px;padding:0 2px 5px}.preview-frame{border:1px solid var(--line);border-radius:8px;overflow:hidden;line-height:0}.preview-frame canvas{width:100%;height:auto;display:block}.checker{background-color:#fff;background-image:linear-gradient(45deg,#e9ecef 25%,transparent 25%,transparent 75%,#e9ecef 75%),linear-gradient(45deg,#e9ecef 25%,transparent 25%,transparent 75%,#e9ecef 75%);background-size:14px 14px;background-position:0 0,7px 7px}.panel.actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.panel.actions .btn{flex:0 0 auto}#generateBtn{min-width:180px;letter-spacing:.03em}.feedback{color:var(--accent);font-size:13px;font-weight:600}#downloadPanel .btn{margin-top:14px}.checks-ok{color:var(--accent)}.checks-bad{color:var(--danger)}.foot{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;margin-top:26px;color:var(--ink-3);font-size:12px}