@charset "UTF-8";
:root{--ink:#202b43;--muted:#68748b;--blue:#2454e8;--blue-dark:#1940c4;--line:#e3e8f1;--bg:#f5f7fb;--surface:#fff;--radius:16px;font-family:Inter,-apple-system,BlinkMacSystemFont,"Noto Sans JP","Hiragino Kaku Gothic ProN",Meiryo,sans-serif;color:var(--ink);font-synthesis:none;background:var(--bg)}
*{box-sizing:border-box}body{margin:0;font-size:16px;line-height:1.65}button,input,select{font:inherit}button,a,select,input{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed}button,a,input,select,[tabindex]{outline-offset:4px}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,[tabindex]:focus-visible{outline:3px solid #83a2ff}button{transition:background .16s,color .16s,border-color .16s,transform .16s}button:disabled{opacity:.48}svg{width:20px;height:20px;display:block;stroke-width:1.7;flex:none}[data-icon]{display:inline-flex;align-items:center;justify-content:center;flex:none}[hidden]{display:none!important}.header{background:#fff;border-bottom:1px solid var(--line)}.header-inner{max-width:1216px;margin:auto;padding:18px 36px;display:flex;align-items:center;gap:28px;min-height:82px}.brand{font-size:28px;font-weight:800;letter-spacing:-1.3px;display:flex;align-items:center;text-decoration:none;color:var(--ink);line-height:1}.brand-accent,.brand-period{color:var(--blue)}.brand-symbol{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;background:var(--blue);color:white;border-radius:10px;font-size:25px;line-height:1;margin-right:10px;letter-spacing:-2px;padding:0 2px 4px 0}.header-label{font-size:13px;color:#758098;letter-spacing:.025em}.header-badge{margin-left:auto;display:flex;align-items:center;gap:7px;font-size:13px;color:#53627b}.header-badge svg{width:16px;height:16px}main{max-width:1216px;margin:0 auto;padding:42px 36px 0}.intro{display:flex;align-items:center;justify-content:space-between;margin-bottom:30px;gap:20px}.eyebrow{font-size:12px;font-weight:750;letter-spacing:.15em;color:var(--blue);margin-bottom:7px}h1,h2,h3,p{margin:0}h1{font-size:32px;letter-spacing:-.04em;line-height:1.55;font-weight:750}.title-period{color:var(--blue);margin-left:3px}.intro p{color:var(--muted);font-size:15px;margin-top:6px}.format-badge{font-size:12px;letter-spacing:.06em;font-weight:650;border:1px solid #dce3f2;border-radius:30px;display:flex;align-items:center;gap:12px;padding:8px 15px;color:#69768e;white-space:nowrap}.format-badge svg{width:16px;height:16px}.workspace{display:grid;grid-template-columns:minmax(0,1fr) 336px;gap:24px;align-items:start}.image-panel,.settings-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 3px 10px #142c541f,0 0 0 transparent;box-shadow:0 3px 14px #203a6505}.image-panel{min-height:562px;padding:24px}.panel-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:22px}.panel-heading h2{display:flex;align-items:center;font-size:17px;font-weight:700;gap:10px;line-height:1.5}.step{font-size:12px;font-weight:700;color:var(--blue);display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:8px;background:#eef2ff;font-variant-numeric:tabular-nums}.count{font-size:12px;font-weight:500;color:#778296;background:#f1f4f8;padding:2px 9px;border-radius:7px;margin-left:2px}.text-button{padding:5px 0;display:flex;align-items:center;gap:5px;background:none;border:0;font-size:12px;color:#69748a}.text-button:hover{color:#c53838}.text-button svg{width:14px;height:14px}.dropzone{min-height:337px;border:1.5px dashed #b7c8f2;border-radius:12px;background:#f8faff;text-align:center;display:flex;align-items:center;justify-content:center;flex-direction:column;padding:28px 15px;transition:background .16s,border .16s}.dropzone.drag-over{background:#eaf0ff;border-color:var(--blue)}.upload-icon{color:var(--blue);width:70px;height:70px;display:flex;align-items:center;justify-content:center;background:white;border:1px solid #e0e8ff;border-radius:19px;margin-bottom:20px;box-shadow:0 5px 10px #38559b08}.upload-icon svg{width:34px;height:34px;stroke-width:1.5}.dropzone h3{font-size:16px;font-weight:600}.drop-or{font-size:13px;color:#8b95a7;margin:5px 0 16px}.button{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:1px solid transparent;border-radius:8px;min-height:46px;padding:10px 22px;font-size:14px;font-weight:650;text-decoration:none}.button-primary{background:var(--blue);color:white;box-shadow:0 3px 6px #2454e819}.button-primary:not(:disabled):hover{background:var(--blue-dark)}.button-primary:active:not(:disabled){transform:translateY(1px)}.button-secondary{background:#fff;border-color:#dce3ef;color:#415574}.button-secondary:hover{border-color:#a4b7f0;background:#f5f8ff}.button-small{font-size:13px;min-height:35px;padding:5px 10px;gap:5px}.button-small svg{width:16px;height:16px}.file-limits{font-size:12px;color:#7b889e;margin-top:18px}.empty-note{display:flex;gap:13px;margin:27px 0 4px;padding:0 8px;color:#8491aa;align-items:flex-start}.empty-note>span{margin-top:4px}.empty-note strong{font-size:14px;font-weight:600;color:#53617a}.empty-note p{font-size:12px;color:#8490a4;margin-top:4px}.settings-panel{padding:24px}.settings-panel .panel-heading{margin-bottom:22px}.reset-button{width:29px;height:29px;display:flex;align-items:center;justify-content:center;background:none;border:0;color:#8b95a7;border-radius:5px}.reset-button:hover{background:#f1f4fb;color:var(--blue)}.reset-button svg{width:17px;height:17px}fieldset{padding:0;margin:0;border:0;min-width:0}.field{margin-bottom:16px}.field label,.field-label{font-size:13px;font-weight:650;display:block;margin-bottom:7px;color:#4b5870}select,input{font-size:14px;color:var(--ink);background:#fff;border:1px solid #dce3ed;border-radius:7px;min-height:42px;width:100%;padding:8px 11px;line-height:1.5}select{padding-right:26px}select:hover,input:hover{border-color:#b5c3db}.segmented{display:grid;grid-template-columns:1fr 1fr 1fr;gap:4px;padding:4px;border-radius:8px;background:#f1f4f9}.segmented button{min-width:0;border:0;border-radius:5px;background:transparent;color:#758099;min-height:33px;font-size:13px;display:flex;align-items:center;justify-content:center;gap:6px;padding:6px}.segmented button svg{width:15px;height:15px}.segmented button[aria-pressed=true]{background:#fff;color:var(--blue);box-shadow:0 1px 5px #192e5a12}.segmented[aria-disabled=true]{opacity:.5}.preview-header{display:flex;align-items:center;justify-content:space-between;margin-top:22px}.preview-header .field-label{margin:0}#preview-label{font-size:12px;color:#8490a4}.preview-stage{display:flex;align-items:center;justify-content:center;background:#f0f3f8;border-radius:9px;min-height:202px;margin-top:9px;padding:12px;overflow:hidden}.preview-sheet{background:white;position:relative;width:117px;height:165.5px;box-shadow:0 2px 7px #24385818;overflow:hidden;flex:none}.preview-placeholder{height:100%;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:13px;text-align:center;color:#adb8c9}.preview-placeholder svg{height:28px;width:28px;stroke-width:1.3}.preview-placeholder>span:last-child{font-size:12px;line-height:1.7}.preview-image{position:absolute;display:block;object-fit:fill;max-width:none;transform-origin:center center}.preview-navigation{display:flex;align-items:center;justify-content:center;gap:20px;margin-top:8px;font-size:12px;color:#687991}.preview-navigation button{display:flex;align-items:center;justify-content:center;width:29px;height:28px;background:#f4f6fb;border:0;border-radius:5px;color:#5b6e8c}.preview-navigation button:hover{background:#e7edfd}.preview-navigation svg{width:16px;height:16px}.preview-hint{font-size:12px;text-align:center;color:#8894a8;margin-top:8px}.filename-field{margin-top:19px;margin-bottom:18px}.filename-input{display:flex;align-items:center;border:1px solid #dce3ed;border-radius:7px;overflow:hidden}.filename-input:focus-within{outline:2px solid #83a2ff;outline-offset:2px}.filename-input input{border:0;min-width:0;outline:none}.filename-input>span{font-size:13px;color:#8895aa;padding-right:12px;flex:none}.download-area{padding-top:18px;border-top:1px solid var(--line)}.convert-button{width:100%;padding:12px 8px;min-height:48px;font-size:14px}#download-helper{text-align:center;color:#8b96a8;font-size:12px;margin-top:9px}.privacy-note{display:flex;align-items:flex-start;justify-content:center;gap:8px;margin:21px 0 38px;color:#79859a}.privacy-note svg{width:16px;height:16px;margin-top:3px}.privacy-note p{font-size:12px}.how-to{border-top:1px solid var(--line);padding:28px 0 34px}.how-to h2{font-size:15px;font-weight:650;margin-bottom:24px}.how-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}.how-grid>div{display:flex;gap:16px}.how-grid>div>span{font-size:28px;line-height:1.3;color:#ccd5e7;font-weight:750;letter-spacing:-.05em}.how-grid h3{font-size:14px;font-weight:650;margin-bottom:6px}.how-grid p{font-size:12px;color:#8a95a8}.how-grid br{display:none}footer{max-width:1144px;margin:0 auto;border-top:1px solid var(--line);padding:22px 0 28px;display:flex;justify-content:space-between;color:#96a0b0;font-size:12px}.footer-brand{font-size:16px;font-weight:750;letter-spacing:-.7px;color:#909db2}.images-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px}.images-toolbar p{display:flex;align-items:center;gap:6px;font-size:12px;color:#8792a6}.images-toolbar p svg{width:15px;height:15px}.image-list{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}.image-card{position:relative;border:1px solid #e0e6f0;border-radius:10px;overflow:hidden;background:#fff;transition:border-color .2s,box-shadow .2s}.image-card.selected{border-color:#94acf4;box-shadow:0 0 0 2px #2454e80c}.image-card.dragging{opacity:.35}.image-card.drop-target{border-color:var(--blue);box-shadow:0 0 0 2px #2454e82b}.image-thumb{position:relative;height:158px;width:100%;display:flex;align-items:center;justify-content:center;border:0;border-bottom:1px solid #ebeff5;background:repeating-conic-gradient(#f4f6fa 0 25%,#fff 0 50%) 50%/16px 16px;overflow:hidden;cursor:grab;padding:0}.image-thumb img{object-fit:contain;position:absolute;max-width:none;pointer-events:none}.page-number{position:absolute;left:8px;top:8px;background:#fff;border:1px solid #e2e7f0;box-shadow:0 1px 5px #142e5907;color:#5e6d86;border-radius:5px;min-width:24px;height:24px;line-height:22px;text-align:center;font-size:12px;font-weight:650}.image-meta{padding:11px 10px 8px}.image-name{font-size:12px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:2px}.image-details{font-size:12px;color:#93a0b3;white-space:nowrap}.image-actions{display:flex;align-items:center;justify-content:space-between;padding:0 7px 7px;gap:3px}.image-actions button{display:flex;align-items:center;justify-content:center;background:transparent;border:0;border-radius:5px;color:#7f8da5;min-width:30px;height:30px}.image-actions button:hover:not(:disabled){background:#eef3ff;color:var(--blue)}.image-actions button:last-child:hover{color:#c44242;background:#fff0f0}.image-actions button svg{width:16px;height:16px}.list-summary{margin-top:22px;border-top:1px solid var(--line);padding-top:15px;display:flex;justify-content:space-between;font-size:12px;color:#929db0;gap:10px}.notice{font-size:13px;line-height:1.7;padding:12px 14px;border-radius:8px;margin:14px 0;white-space:pre-line}.notice-error{background:#fff1f1;border:1px solid #f3d9d9;color:#b83e43}.import-status{font-size:13px;color:var(--blue);padding:13px 0}#conversion-progress{margin-top:14px;font-size:12px;color:#69758c}progress{display:block;width:100%;height:7px;accent-color:var(--blue);border:0;border-radius:5px;margin-bottom:5px}progress::-webkit-progress-bar{background:#e5ebfb;border-radius:5px}progress::-webkit-progress-value{background:var(--blue);border-radius:5px}#result{padding:13px;margin-top:15px;border-radius:8px;background:#eff7f3;color:#377458;font-size:12px;overflow-wrap:anywhere}#result strong{display:block;font-size:13px;margin-bottom:3px}#result a{display:inline-block;color:#236849;font-weight:600;margin-top:6px;text-underline-offset:3px}#result.error{color:#b33a42;background:#fff1f1}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.image-panel.is-loading #dropzone{opacity:.65}.image-panel.is-loading button,.is-converting .image-panel button{pointer-events:none}.is-converting .image-list{opacity:.7}
@media(min-width:1150px){.image-list{grid-template-columns:repeat(3,minmax(0,1fr))}.image-panel{min-height:570px}}
@media(max-width:1020px){.workspace{grid-template-columns:minmax(0,1fr) 306px;gap:18px}.image-panel,.settings-panel{padding:19px}.image-list{grid-template-columns:repeat(2,minmax(0,1fr))}.header-label{display:none}.format-badge{display:none}footer{margin:0 36px}.images-toolbar{align-items:flex-start}.images-toolbar p{max-width:150px}.image-thumb{height:150px}}
@media(max-width:760px){.header-inner{padding:16px 20px;min-height:73px}.brand{font-size:25px}.brand-symbol{width:31px;height:31px;font-size:22px}.header-badge{font-size:12px;gap:5px}.header-badge svg{width:14px;height:14px}main{padding:27px 18px 0}.intro{margin-bottom:22px}h1{font-size:27px}.intro p{font-size:13px;line-height:1.8;max-width:330px}.eyebrow{font-size:12px}.workspace{grid-template-columns:1fr;gap:20px}.image-panel,.settings-panel{padding:20px}.image-panel{min-height:0}.dropzone{min-height:296px;padding:24px 10px}.dropzone h3{font-size:14px}.upload-icon{width:59px;height:59px;margin-bottom:16px}.upload-icon svg{width:29px;height:29px}.file-limits{font-size:12px}.empty-note{padding:0;margin-top:21px;margin-bottom:0;gap:9px}.empty-note strong{font-size:12px}.empty-note p{font-size:12px}.image-list{grid-template-columns:repeat(3,minmax(0,1fr));gap:11px}.image-thumb{height:140px}.images-toolbar p{max-width:none}.settings-panel .panel-heading{margin-bottom:20px}.field label,.field-label{font-size:14px}.preview-stage{min-height:214px}.privacy-note{justify-content:flex-start;margin-bottom:28px}.privacy-note p{font-size:12px}.how-grid{gap:20px;grid-template-columns:1fr}.how-grid>div{gap:20px}.how-grid p{font-size:12px}.how-grid h3{font-size:14px}.how-grid br{display:none}footer{margin:0 18px;padding:20px 0}.image-details{font-size:12px}.button-primary{min-height:48px}.image-actions button{height:34px;min-width:28px}.preview-placeholder>span:last-child{font-size:12px}.preview-hint,#download-helper{font-size:12px}.filename-input input{font-size:16px}#preview-label{font-size:12px}}
@media(max-width:480px){.image-list{grid-template-columns:repeat(2,minmax(0,1fr))}.image-thumb{height:156px}.image-panel{padding:17px}.images-toolbar p{font-size:12px}.images-toolbar p svg{display:none}.images-toolbar{gap:7px}.button-small{font-size:12px}.image-actions button{min-width:30px;min-height:36px}.image-meta{padding:10px 9px 7px}.header-badge{font-size:12px}.header-inner{gap:10px}.panel-heading h2{font-size:16px}.text-button{font-size:12px}.preview-stage{min-height:218px}.how-to{padding-top:24px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important;animation:none!important}}

/* Comfortable labels across desktop and mobile. */
.field label,.field-label,.segmented button,.button-small{font-size:14px}.image-name{font-size:14px}.image-actions button{min-height:36px}.header-label{font-size:14px}.intro p{font-size:16px}.dropzone h3{font-size:16px}.panel-heading h2{font-size:17px}.text-button{font-size:14px}.how-grid h3{font-size:16px}.how-grid p{font-size:14px}.empty-note strong{font-size:14px}.empty-note p{font-size:13px}.images-toolbar p{font-size:13px}.preview-placeholder>span:last-child{font-size:12px}.how-to h2{font-size:16px}.image-details{white-space:normal}.image-actions{flex-wrap:wrap}.preview-placeholder{padding:4px}.format-badge{font-size:12px}
@media(max-width:480px){.images-toolbar{align-items:center}.images-toolbar p{font-size:12px}.images-toolbar .button-small{font-size:13px}.text-button{font-size:12px}.how-grid p{font-size:14px}.intro p{font-size:16px}.empty-note p{font-size:12px}.file-limits{max-width:245px}.image-actions button{min-width:26px}.image-name{font-size:13px}.brand{font-size:24px}.header-badge{font-size:12px}}