:root{--a4-w: 210mm;--a4-h: 297mm;font-family:Hiragino Maru Gothic ProN,Hiragino Kaku Gothic ProN,sans-serif;color:#222}*{box-sizing:border-box}body{margin:0;background:#f4f4f6}.controls{position:sticky;top:0;z-index:10;background:#fff;border-bottom:1px solid #ddd;padding:12px 20px 14px;box-shadow:0 2px 6px #0000000d}.controls h1{margin:0 0 10px;font-size:20px}.controls-row{display:flex;flex-wrap:wrap;align-items:flex-end;gap:14px;margin-bottom:8px}.controls label{display:flex;flex-direction:column;gap:4px;font-size:13px;color:#555}.controls select,.controls input{font-size:15px;padding:6px 8px;border:1px solid #bbb;border-radius:6px;min-width:90px}.seed-field{position:relative}.seed-field>span{display:block}.seed-field input{min-width:130px}#random-seed{position:absolute;right:4px;bottom:4px;border:none;background:transparent;font-size:18px;cursor:pointer;padding:2px 4px}.controls button{font-size:15px;padding:9px 18px;border:1px solid #bbb;border-radius:8px;background:#fff;cursor:pointer}.controls button.primary{background:#2e7d32;color:#fff;border-color:#2e7d32;font-weight:700}.controls button:disabled{opacity:.5;cursor:default}.hint{margin:4px 0 0;font-size:12px;color:#888}.output{display:flex;flex-direction:column;align-items:center;gap:20px;padding:24px}.page{width:var(--a4-w);height:var(--a4-h);background:#fff;box-shadow:0 2px 10px #00000026;overflow:hidden}.page svg{display:block;width:100%;height:100%}@media print{@page{size:A4;margin:0}body{background:#fff}.no-print{display:none!important}.output{display:block;padding:0;gap:0}.page{width:var(--a4-w);height:var(--a4-h);box-shadow:none;page-break-after:always;break-after:page}.page:last-child{page-break-after:auto}*{-webkit-print-color-adjust:exact;print-color-adjust:exact}}