:root{--bg: #f5f6fa;--surface: #ffffff;--surface-2: #eef0f6;--text: #1c1e26;--muted: #6b7280;--border: #dfe2ea;--primary: #d6453a;--primary-hover: #bf3a30;--primary-soft: #fdeceb;--accent: #2563eb;--success: #15803d;--danger: #b91c1c;--radius: 12px;--shadow: 0 1px 3px rgba(15, 23, 42, .08), 0 4px 16px rgba(15, 23, 42, .06)}@media(prefers-color-scheme:dark){:root{--bg: #14161b;--surface: #1e2128;--surface-2: #262a33;--text: #e8eaf0;--muted: #9aa1ad;--border: #343945;--primary: #e05a4f;--primary-hover: #ea6f65;--primary-soft: #3a2422;--accent: #6d9bff;--success: #4ade80;--danger: #f87171;--shadow: 0 1px 3px rgba(0, 0, 0, .4), 0 4px 16px rgba(0, 0, 0, .3)}}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Hiragino Sans,Noto Sans JP,Yu Gothic UI,Segoe UI,sans-serif;background:var(--bg);color:var(--text);line-height:1.65;min-height:100dvh;display:flex;flex-direction:column}#app{display:flex;flex-direction:column;min-height:100dvh}.container{width:100%;max-width:1024px;margin:0 auto;padding:0 16px}.main{flex:1;padding-top:24px;padding-bottom:48px}h1{font-size:1.5rem;margin:0 0 4px}h2{font-size:1.1rem}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.muted{color:var(--muted)}.site-header{background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:20}.site-header-inner{display:flex;align-items:center;justify-content:space-between;height:56px}.logo{display:flex;align-items:center;gap:8px;font-weight:700;font-size:1.15rem;color:var(--text)}.logo:hover{text-decoration:none}.logo-mark{font-size:1.3rem}.nav{display:flex;gap:20px}.nav a{color:var(--text);font-weight:500;font-size:.95rem}.site-footer{background:var(--surface);border-top:1px solid var(--border);padding:20px 0;font-size:.85rem;text-align:center}.site-footer p{margin:4px 0}.hero{text-align:center;padding:32px 0 16px}.hero h1{font-size:1.9rem;margin-bottom:8px}.hero p{max-width:640px;margin:0 auto}.badge{display:inline-block;background:var(--primary-soft);color:var(--primary);font-weight:600;font-size:.85rem;border-radius:999px;padding:4px 14px;margin-bottom:12px}.search-box{max-width:420px;margin:20px auto 0}.cat-title{margin:32px 0 12px;font-size:1.15rem}.tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}.tool-card{display:block;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px 16px;color:var(--text);box-shadow:var(--shadow);transition:transform .12s ease,border-color .12s ease}.tool-card:hover{transform:translateY(-2px);border-color:var(--primary);text-decoration:none}.tool-card .tc-icon{font-size:1.7rem}.tool-card h3{margin:8px 0 4px;font-size:1rem}.tool-card p{margin:0;font-size:.85rem;color:var(--muted)}.tool-head{display:flex;gap:14px;align-items:center;margin-bottom:20px}.tool-icon-lg{font-size:2rem;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);width:60px;height:60px;display:grid;place-items:center;flex-shrink:0}.tool-head p{margin:0;font-size:.92rem}.dropzone{border:2px dashed var(--border);border-radius:var(--radius);background:var(--surface);text-align:center;padding:44px 16px;cursor:pointer;transition:border-color .15s,background .15s;margin-bottom:16px}.dropzone:hover,.dropzone.dragover{border-color:var(--primary);background:var(--primary-soft)}.dropzone.compact{padding:14px 16px}.dropzone.compact .dz-icon,.dropzone.compact .dz-hint{display:none}.dropzone.compact .dz-label{font-size:.9rem}.dz-icon{font-size:2.2rem;margin-bottom:8px}.dz-label{font-weight:600}.dz-hint{font-size:.85rem;margin-top:6px}.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin-bottom:16px;box-shadow:var(--shadow)}.panel-title{margin:0 0 10px;font-size:1rem}.panel-title.done{color:var(--success)}.panel-title-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.panel-title-row .panel-title{margin:0}.file-item,.result-item{display:flex;align-items:center;gap:10px;padding:8px 4px;border-bottom:1px solid var(--border)}.file-item:last-child,.result-item:last-child{border-bottom:none}.file-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:.92rem;min-width:0}.file-size{font-size:.8rem;flex-shrink:0}.file-actions{display:flex;gap:4px;flex-shrink:0}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid var(--border);background:var(--surface-2);color:var(--text);font-size:.95rem;font-weight:600;border-radius:10px;padding:9px 18px;cursor:pointer;transition:background .12s,opacity .12s;font-family:inherit}.btn:hover{filter:brightness(.97)}.btn:disabled{opacity:.45;cursor:not-allowed}.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-hover)}.btn-ghost{background:transparent}.btn-sm{padding:5px 12px;font-size:.85rem}.btn-lg{padding:12px 28px;font-size:1.05rem;width:100%}.btn-danger{color:var(--danger)}@media(min-width:640px){.btn-lg{width:auto}}.btn-icon{border:1px solid var(--border);background:var(--surface-2);color:var(--text);border-radius:8px;width:30px;height:30px;cursor:pointer;font-size:.85rem;line-height:1}.btn-icon:disabled{opacity:.35;cursor:not-allowed}.btn-icon.danger{color:var(--danger)}.btn-icon.active{background:var(--primary);border-color:var(--primary);color:#fff}.options{display:grid;gap:14px}.field{display:grid;gap:4px}.field>label{font-size:.88rem;font-weight:600}.field-row{display:flex;flex-wrap:wrap;gap:14px}.field-row 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.2s;z-index:100;max-width:min(90vw,480px)}.toast.show{opacity:1;transform:translate(-50%)}.toast-error{background:var(--danger);color:#fff}.out-actions{margin-top:14px;display:flex;gap:10px;flex-wrap:wrap;justify-content:center}.handoff{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:16px;padding-top:14px;border-top:1px dashed var(--border)}.handoff-label{font-size:.9rem;font-weight:600}.handoff select{width:auto;flex:1;min-width:160px}.thumb-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:12px}.thumb-card{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:8px;text-align:center;transition:opacity .15s,border-color .15s}.thumb-card.dragging{opacity:.4}.thumb-card.drag-over{border-color:var(--primary)}.thumb-card canvas,.thumb-card img{width:100%;height:auto;border:1px solid var(--border);border-radius:4px;background:#fff;display:block;transition:transform .2s}.thumb-card.deleted canvas{opacity:.25}.thumb-card.deleted:after{content:"削除";position:absolute;top:40%;left:50%;transform:translate(-50%,-50%);color:var(--danger);font-weight:700;background:var(--surface);border:1px solid var(--danger);border-radius:6px;padding:2px 10px}.thumb-num{font-size:.78rem;color:var(--muted);margin-top:4px}.thumb-tools{display:flex;justify-content:center;gap:4px;margin-top:6px;flex-wrap:wrap}.thumb-card.selected{border-color:var(--primary);outline:2px solid var(--primary)}.text-output{width:100%;min-height:280px;font-family:ui-monospace,SF Mono,Menlo,Consolas,monospace;font-size:.85rem;resize:vertical}.sig-pad{border:1px solid var(--border);border-radius:10px;background:#fff;touch-action:none;width:100%;max-width:480px;display:block}.preview-wrap{position:relative;display:inline-block;max-width:100%;border:1px solid var(--border);border-radius:6px;overflow:hidden}.preview-wrap canvas{display:block;max-width:100%;height:auto}.sig-ghost{position:absolute;pointer-events:none;opacity:.85;outline:1px dashed var(--accent)}.tabs{display:flex;gap:6px;margin-bottom:10px}.tab{border:1px solid var(--border);background:var(--surface-2);border-radius:8px;padding:6px 14px;font-size:.88rem;cursor:pointer;font-weight:600;color:var(--text);font-family:inherit}.tab.active{background:var(--primary);border-color:var(--primary);color:#fff}.help-body h2{margin-top:36px;padding-bottom:6px;border-bottom:1px solid var(--border)}.help-body h3{margin-top:24px;margin-bottom:6px}.help-body p,.help-body li{font-size:.95rem}.help-toc{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px 20px;margin:20px 0}.help-toc ul{margin:8px 0 0;padding-left:20px}.faq-q{font-weight:700;margin-top:18px}.faq-a{margin:4px 0 0}kbd,.help-body code{background:var(--surface-2);border:1px solid var(--border);border-radius:4px;padding:1px 6px;font-size:.85em;font-family:ui-monospace,Menlo,monospace}@media(max-width:480px){.tool-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}.hero h1{font-size:1.5rem}.tool-head h1{font-size:1.25rem}}