:root{--blue: #1565c0;--red: #c62828;--gray: #757575;--bg: #f5f6f8;--card: #ffffff;--border: #e0e3e8;--text: #1f2329;--muted: #6b7280;--accent: #2d6cdf}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Hiragino Sans,Noto Sans JP,Segoe UI,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}.app{max-width:960px;margin:0 auto;padding:24px 16px 64px}.header h1{font-size:22px;margin:0 0 4px}.header p{margin:0 0 24px;color:var(--muted);font-size:13px}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px;margin-bottom:20px}.card h2{font-size:15px;margin:0 0 14px;display:flex;align-items:center;gap:8px}.metrics-grid{width:100%;border-collapse:collapse}.metrics-grid th,.metrics-grid td{padding:8px 6px;text-align:left;font-size:13px}.metrics-grid thead th{color:var(--muted);font-weight:600;border-bottom:1px solid var(--border)}.metrics-grid .metric-name{font-weight:600;white-space:nowrap}.metrics-grid input{width:100%;padding:8px 10px;border:1px solid var(--border);border-radius:8px;font-size:14px;font-variant-numeric:tabular-nums}.metrics-grid input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px #2d6cdf26}.metrics-grid input.field-error{border-color:var(--red);background:#fff5f5}.field-msg{color:var(--red);font-size:11px;margin-top:2px}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--border);background:#fff;border-radius:8px;padding:9px 16px;font-size:14px;cursor:pointer;transition:.12s}.btn:hover{background:#f0f2f5}.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}.btn-primary:hover{background:#245ac0}.btn-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}.result-list{list-style:none;margin:0;padding:0}.result-list li{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 14px;padding:10px 0;border-bottom:1px solid var(--border)}.result-list li:last-child{border-bottom:none}.result-label{font-weight:700;min-width:64px}.result-pair{font-size:13px;color:var(--muted)}.result-pair b{font-size:15px;margin-left:2px}.increase{color:var(--blue)}.decrease{color:var(--red)}.flat{color:var(--gray)}.copy-box pre{background:#f7f8fa;border:1px solid var(--border);border-radius:8px;padding:14px;font-size:14px;white-space:pre-wrap;margin:0 0 12px;font-family:SFMono-Regular,Menlo,Consolas,monospace}.copy-flash{color:#18794e;font-size:13px;font-weight:600;margin-left:12px}.history-list{list-style:none;margin:0;padding:0}.history-item{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 12px;border:1px solid var(--border);border-radius:8px;margin-bottom:8px;cursor:pointer;background:#fff}.history-item:hover{background:#f7f8fa;border-color:var(--accent)}.history-meta{display:flex;flex-direction:column}.history-title{font-weight:600;font-size:14px}.history-date{font-size:11px;color:var(--muted)}.history-del{border:none;background:transparent;color:var(--muted);cursor:pointer;font-size:13px;padding:4px 8px}.history-del:hover{color:var(--red)}.empty{color:var(--muted);font-size:13px}.ocr-text{width:100%;min-height:120px;border:1px solid var(--border);border-radius:8px;padding:10px;font-size:13px;font-family:monospace}.ocr-progress{font-size:12px;color:var(--muted);margin-top:6px}.title-input{padding:8px 10px;border:1px solid var(--border);border-radius:8px;font-size:14px;width:240px;max-width:100%}.error-banner{background:#fff5f5;border:1px solid #f3c2c2;color:var(--red);border-radius:8px;padding:10px 14px;font-size:13px;margin-top:12px}