:root{--ink: #1b1f24;--muted: #5b6472;--accent: #6d5bff;--accent-dark: #5140e6;--bg: #f7f7fb;--card: #ffffff;--border: #e6e6f0;--danger: #c0392b;--ok: #1e8e5a}@media(prefers-color-scheme:dark){:root{--ink: #eef0f5;--muted: #99a2b3;--bg: #14161b;--card: #1c1f26;--border: #2a2f3a}}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.5}.page{max-width:860px;margin:0 auto;padding:0 24px 64px}header{display:flex;align-items:center;padding:24px 0}.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px}.logo-mark{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,var(--accent),#ff7ac6)}h1{font-size:34px;letter-spacing:-.02em;margin:24px 0 12px}h2{font-size:18px;margin:28px 0 8px}.sub{color:var(--muted);max-width:620px;margin:0 0 28px}.small{font-size:13px}.muted{color:var(--muted)}code{background:var(--bg);border:1px solid var(--border);padding:1px 5px;border-radius:4px;font-size:.9em}.dropzone{border:2px dashed var(--border);border-radius:14px;background:var(--card);padding:40px 24px;text-align:center;cursor:pointer;transition:border-color .15s,background .15s}.dropzone:hover{border-color:var(--accent)}.dropzone.has-files{border-style:solid;border-color:var(--accent)}.dropzone p{margin:0;color:var(--muted)}.link{background:none;border:none;color:var(--accent);cursor:pointer;font:inherit;margin-left:10px;text-decoration:underline}.options{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin:22px 0}.field{display:flex;flex-direction:column;gap:4px}.field-label{font-size:13px;font-weight:600}.field-hint{font-size:11px;color:var(--muted)}.field input,.field select{padding:9px 10px;border:1px solid var(--border);border-radius:8px;background:var(--card);color:var(--ink);font:inherit}.btn{padding:13px 26px;border-radius:10px;font-weight:600;font-size:15px;border:1px solid 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var(--border);border-radius:8px;background:var(--card)}.sheet-bg{fill:#fff}@media(prefers-color-scheme:dark){.sheet-bg{fill:#f2f2f5}}.dieline{fill:none;stroke:#ff2bd1;stroke-width:2;vector-effect:non-scaling-stroke}.tuner{display:flex;align-items:center;gap:22px;flex-wrap:wrap;background:var(--card);border:1px solid var(--border);border-radius:14px;padding:18px 22px;margin-top:22px}.tuner-count{display:flex;align-items:center;gap:14px}.step{width:44px;height:44px;border-radius:50%;border:1px solid var(--border);background:var(--bg);color:var(--ink);font-size:24px;line-height:1;cursor:pointer}.step:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}.step:disabled{opacity:.4;cursor:not-allowed}.count-block{display:flex;flex-direction:column;align-items:center;min-width:68px}.count-value{font-size:30px;font-weight:700;line-height:1}.count-label{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}.tuner-info{flex:1;min-width:200px}.tuner-info p{margin:0 0 4px;font-size:14px}.tuner-info .warn{color:#b46a00}.tuner-info .ok{color:var(--ok)}.btn.secondary{background:transparent;border-color:var(--border);color:var(--ink)}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0a0c128c;display:flex;align-items:center;justify-content:center;padding:24px;z-index:50}.modal{background:var(--card);border-radius:16px;padding:24px;max-width:460px;width:100%;max-height:80vh;overflow:auto;border:1px solid var(--border)}.modal h3{margin:0 0 4px}.picker{list-style:none;padding:0;margin:16px 0}.picker li{margin-bottom:8px}.picker-item{display:flex;align-items:center;gap:12px;width:100%;padding:10px;border-radius:10px;cursor:pointer;border:1px solid var(--border);background:var(--bg);color:var(--ink);text-align:left;font:inherit}.picker-item:hover:not(:disabled){border-color:var(--accent)}.picker-item:disabled{opacity:.4;cursor:not-allowed}.picker-thumb{width:44px;height:44px;object-fit:contain;flex:0 0 auto;background:#fff;border-radius:6px}.picker-thumb.placeholder{background:var(--border)}.picker-text{flex:1;display:flex;flex-direction:column;min-width:0}.picker-name{font-weight:600;font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.picker-count{font-variant-numeric:tabular-nums;font-weight:700}.picker-count.zero{color:var(--muted)}@media(max-width:640px){.sheets{flex-direction:column}.sheet-figure{flex:1 1 auto}}