@charset "UTF-8";
:root{color-scheme:light;--bg:#f5f7f8;--surface:#fff;--ink:#182e2a;--muted:#677773;--line:#dce5e1;--green:#087454;--green-dark:#05533d;--lime:#d4f4a0;--pale:#f0f8f4;--danger:#ad3d2d;font-family:Inter,-apple-system,BlinkMacSystemFont,"Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;font-synthesis:none;font-size:16px;line-height:1.6}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink)}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.48}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #189b79;outline-offset:4px}button{touch-action:manipulation}button,select,input{color:inherit}a{color:inherit}h1,h2,p{margin:0}[hidden]{display:none!important}svg{flex-shrink:0}button svg{pointer-events:none}.site-header{height:80px;background:white;border-bottom:1px solid var(--line)}.header-inner{max-width:1200px;height:100%;padding:0 32px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:20px}.wordmark{text-decoration:none;display:inline-flex;align-items:center;gap:9px;font-size:28px;font-weight:800;letter-spacing:-1.2px;line-height:1}.brand-mark{background:var(--green);color:var(--lime);width:33px;height:33px;border-radius:9px;font-size:28px;text-align:center;line-height:30px;letter-spacing:-3px;padding-right:3px}.brand-dot{color:var(--green);margin-left:-8px}.header-label{font-size:13px;color:var(--muted)}.container{max-width:1200px;padding:0 32px;margin:auto}.page-heading{padding:42px 0 30px;display:flex;align-items:center;justify-content:space-between;gap:22px}.eyebrow{font-size:12px;font-weight:700;letter-spacing:2.2px;color:var(--green);margin-bottom:9px}h1{font-size:clamp(26px,3vw,34px);line-height:1.5;letter-spacing:.025em;font-weight:750}.intro{font-size:16px;color:var(--muted);margin-top:8px}.privacy-pill{display:flex;align-items:center;gap:7px;font-size:12px;color:#3d6c5b;background:#e7f0eb;border-radius:30px;padding:9px 13px;flex-shrink:0}.workspace{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:24px;align-items:start}.files-panel{min-width:0}.drop-zone{border:1.5px dashed #85b7a5;border-radius:16px;min-height:310px;background:var(--pale);padding:34px 20px 26px;display:flex;flex-direction:column;align-items:center;text-align:center;transition:background .2s,border-color .2s}.drop-zone.drag-over{background:#e1f3de;border-color:var(--green);outline:4px solid #d4f4a066;outline-offset:3px}.drop-zone.compact{min-height:0;padding:21px 20px;display:grid;grid-template-columns:auto 1fr auto;column-gap:16px;text-align:left}.drop-zone.compact .upload-symbol{width:42px;height:42px;margin:0;grid-row:1 / 3;border-radius:11px}.drop-zone.compact .upload-symbol svg{width:23px;height:23px}.drop-zone.compact h2{font-size:15px;grid-column:2;grid-row:1}.drop-zone.compact>p:not(.file-limits){display:none}.drop-zone.compact .file-limits{font-size:12px;grid-column:2;grid-row:2;margin:0}.drop-zone.compact .primary{grid-column:3;grid-row:1 / 3;margin:0;min-height:42px;font-size:14px;padding:9px 15px}.upload-symbol{width:64px;height:64px;border-radius:18px;background:#dff0e7;color:var(--green);display:grid;place-items:center;margin-bottom:20px}.drop-zone h2{font-size:20px;line-height:1.6;font-weight:650}.drop-zone>p{font-size:14px;color:var(--muted);margin-top:5px}.button{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:11px 22px;border:0;border-radius:9px;font-size:14px;font-weight:650;transition:background .15s,transform .15s}.button:active:not(:disabled){transform:translateY(1px)}.primary{color:white;background:var(--green)}.primary:hover:not(:disabled){background:var(--green-dark)}.drop-zone .primary{margin-top:20px;min-width:184px}.drop-zone .primary span{font-size:20px;line-height:20px;font-weight:400}.drop-zone .file-limits{font-size:12px;margin-top:18px;color:#6b7f76}.file-limits span{margin:0 5px}.empty-note{display:flex;justify-content:center;align-items:center;gap:10px;padding:32px 0;font-size:13px;color:var(--muted)}.step-number{border:1px solid #b9c9c1;border-radius:50%;width:24px;height:24px;display:grid;place-items:center;font-family:ui-monospace,monospace;font-size:12px;color:#4f655b}.empty-note i{width:26px;height:1px;background:#c8d5ce;margin:0 4px}.settings-panel{background:white;border:1px solid var(--line);border-radius:16px;padding:23px;position:sticky;top:24px}.settings-heading{display:flex;align-items:center;justify-content:space-between;gap:8px;padding-bottom:22px;border-bottom:1px solid var(--line);margin-bottom:23px}.settings-heading h2,.results-toolbar h2{font-size:16px;font-weight:700}.text-button{background:none;border:0;padding:4px 0;color:var(--muted);text-decoration:none;font-size:12px;min-height:28px}.text-button:hover:not(:disabled){color:var(--green);text-decoration:underline}fieldset{border:0;padding:0;margin:0;min-width:0}.control-group{margin-bottom:24px}.control-label{font-size:14px;font-weight:650;display:block;margin-bottom:10px}.format-options{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;background:#f0f3f2;padding:4px;border:1px solid #ebefed;border-radius:9px}.format-options label{position:relative;cursor:pointer;text-align:center;font-size:14px;font-weight:650}.format-options input{position:absolute;opacity:0;width:100%;height:100%;left:0;top:0;margin:0;cursor:pointer}.format-options span{display:block;padding:7px 3px;border-radius:6px;transition:background .15s}.format-options input:checked+span{background:white;color:var(--green);box-shadow:0 1px 4px #183e2314}.format-options input:focus-visible+span{outline:3px solid #189b79;outline-offset:2px}.format-options input:disabled{cursor:wait}.hint{font-size:12px;line-height:1.7;color:var(--muted);margin-top:9px;overflow-wrap:anywhere}.label-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}.label-row .control-label{margin:0}.label-row output{font-size:24px;font-variant-numeric:tabular-nums;font-weight:700;color:var(--green);line-height:1}.label-row output span{font-size:13px;margin-left:3px}input[type=range]{width:100%;accent-color:var(--green);cursor:pointer;height:22px;margin:5px 0}.range-labels{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);margin-top:3px}input[type=range]:disabled{opacity:.4;cursor:not-allowed}select{width:100%;min-height:45px;border:1px solid #d6e0db;border-radius:8px;background:white;font-size:14px;padding:9px 11px;cursor:pointer}.custom-size{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:12px;font-size:13px}.custom-size>div{display:flex;align-items:center;gap:7px}.custom-size input{width:96px;min-height:40px;padding:6px 8px;border:1px solid var(--line);border-radius:6px}.custom-size span{color:var(--muted);font-size:12px}.apply-button{width:100%;background:var(--ink);color:white}.apply-button:hover:not(:disabled){background:var(--green)}.settings-note{font-size:12px;line-height:1.6;text-align:center;color:var(--muted);margin-top:11px}.settings-note.stale{color:var(--green);font-weight:650}.local-note{border-top:1px solid var(--line);margin-top:23px;padding-top:18px;display:flex;align-items:flex-start;gap:9px;color:#647970}.local-note svg{margin-top:3px}.local-note p{font-size:12px;line-height:1.8}.messages:empty{display:none}.messages{margin-top:15px;padding:12px 15px;background:#fff6e8;border:1px solid #efddbf;border-radius:9px;color:#7e5222;font-size:13px;white-space:pre-line;overflow-wrap:anywhere}.summary{background:var(--ink);color:white;border-radius:13px;padding:21px 24px;display:flex;align-items:center;justify-content:space-between;gap:18px;margin-top:20px}.summary-label{color:#b4c4be;font-size:12px}.size-flow{display:flex;align-items:baseline;gap:13px;font-variant-numeric:tabular-nums;margin-top:3px}.size-flow>span:first-child{font-size:19px;color:#c4d0ca}.size-flow strong{font-size:27px;letter-spacing:-.6px}.flow-arrow{color:#9db1a8;font-size:20px}.saved-block{text-align:right;display:flex;align-items:center;gap:14px;color:var(--lime)}.saved-block>span{font-size:12px;max-width:3em;line-height:1.5}.saved-block strong{font-size:38px;line-height:1.2;font-variant-numeric:tabular-nums;letter-spacing:-1px;white-space:nowrap}.saved-block strong span{font-size:18px;margin-left:1px}.summary.increased .saved-block{color:#ffcf91}.results-toolbar{display:flex;align-items:center;justify-content:space-between;margin:24px 0 12px;gap:12px}.count{display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:600;background:#e4eae7;min-width:23px;min-height:23px;border-radius:7px;margin-left:7px;padding:0 5px}.file-list{list-style:none;margin:0;padding:0;display:grid;gap:8px}.file-card{border:1px solid var(--line);background:white;border-radius:11px;display:flex;align-items:center;gap:13px;padding:14px;min-width:0}.thumbnail{width:56px;height:56px;border-radius:7px;object-fit:contain;flex-shrink:0;background-color:#f5f7f5;background-image:linear-gradient(45deg,#e6ece8 25%,transparent 25%),linear-gradient(-45deg,#e6ece8 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#e6ece8 75%),linear-gradient(-45deg,transparent 75%,#e6ece8 75%);background-size:12px 12px;background-position:0 0,0 6px,6px -6px,-6px 0}.thumbnail-placeholder{display:grid;place-items:center;color:#789084}.file-info{flex:1;min-width:0}.file-name{font-size:14px;font-weight:650;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-meta{font-size:12px;color:var(--muted);margin-top:3px;display:flex;gap:6px;flex-wrap:wrap;align-items:center;font-variant-numeric:tabular-nums}.file-meta strong{font-size:13px;font-weight:650;color:var(--ink)}.file-detail{font-size:12px;color:#65776e;line-height:1.6;margin-top:3px}.savings-tag{display:inline-block;font-size:12px;border-radius:4px;background:#e7f4e9;color:#236744;padding:1px 5px;font-weight:600}.savings-tag.increase{background:#fff1d9;color:#915a13}.file-error{color:var(--danger);font-size:12px;line-height:1.6;margin-top:3px;overflow-wrap:anywhere}.file-actions{display:flex;align-items:center;gap:4px;flex-shrink:0}.icon-button{width:36px;height:36px;display:grid;place-items:center;background:none;border:1px solid transparent;border-radius:7px;color:#718179;padding:5px;flex-shrink:0}.icon-button:hover:not(:disabled){border-color:#ccddd3;background:#f0f8f3;color:var(--green)}.icon-button.download-one{background:var(--pale);color:var(--green)}.icon-button svg{width:17px;height:17px}.icon-button.remove-file{color:#8c9b93}.icon-button.remove-file:hover{color:var(--danger);background:#fcf1ed}.download-all{width:100%;margin-top:16px;background:var(--green);color:white}.download-all:hover:not(:disabled){background:var(--green-dark)}.progress-wrap{margin-bottom:12px}.progress-label{font-size:13px;display:flex;align-items:center;justify-content:space-between;color:var(--green)}progress{width:100%;height:5px;appearance:none;border:none;border-radius:5px;background:#dfe9e3;overflow:hidden}progress::-webkit-progress-bar{background:#dfe9e3}progress::-webkit-progress-value{background:var(--green);transition:width .2s}progress::-moz-progress-bar{background:var(--green)}.usage-notes{padding:42px 0 34px;margin-top:10px;border-bottom:1px solid var(--line)}.usage-notes h2{font-size:16px;font-weight:650;margin-bottom:20px}.format-guide{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}.format-guide>div{display:flex;align-items:flex-start;gap:12px}.format-guide p{font-size:13px;color:var(--muted);line-height:1.8}.guide-tag{font-size:12px;font-weight:700;min-width:47px;padding:3px 6px;background:white;border:1px solid var(--line);border-radius:5px;text-align:center}.small-note{font-size:12px;color:#77857e;line-height:1.8;margin-top:22px}.site-footer{max-width:1200px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:23px 32px 28px;color:#74817c;font-size:12px}.footer-brand{font-size:19px;font-weight:750;letter-spacing:-1px;color:#425b50}dialog{border:1px solid var(--line);border-radius:18px;padding:25px;max-width:850px;width:calc(100% - 32px);max-height:90dvh;overflow:auto;color:var(--ink);box-shadow:0 25px 100px #0923183d}dialog::backdrop{background:#0f2624b3;backdrop-filter:blur(4px)}.dialog-head{display:flex;justify-content:space-between;gap:16px;margin-bottom:18px}.dialog-head .eyebrow{font-size:12px;margin-bottom:3px}.dialog-head h2{font-size:21px}.dialog-head>div{min-width:0}.dialog-head>div>p:last-child{font-size:12px;color:var(--muted);text-overflow:ellipsis;overflow:hidden;white-space:nowrap;margin-top:5px}.close-dialog{font-size:27px;color:var(--ink);line-height:1}.compare-stage{position:relative;width:100%;height:clamp(200px,50vh,470px);overflow:hidden;border:1px solid var(--line);border-radius:8px;background-color:#f3f5f4;background-image:linear-gradient(45deg,#e3e8e5 25%,transparent 25%),linear-gradient(-45deg,#e3e8e5 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#e3e8e5 75%),linear-gradient(-45deg,transparent 75%,#e3e8e5 75%);background-size:20px 20px;background-position:0 0,0 10px,10px -10px,-10px 0}.compare-stage img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain}.compare-stage #preview-before{clip-path:inset(0 50% 0 0);background:inherit}.compare-divider{position:absolute;inset:0 auto 0 50%;width:2px;background:white;box-shadow:0 0 2px #142f26;pointer-events:none}.compare-divider span{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:32px;height:32px;display:grid;place-items:center;border-radius:50%;background:white;color:var(--green);box-shadow:0 2px 8px #09221926;font-size:19px}.compare-label{position:absolute;top:12px;font-size:12px;color:white;background:#172d26bf;border-radius:4px;padding:3px 8px;pointer-events:none}.before-label{left:12px}.after-label{right:12px}.compare-slider-label{display:block;font-size:12px;color:var(--muted);text-align:center;margin-top:12px}.compare-stats{display:flex;align-items:center;gap:36px;border-top:1px solid var(--line);padding-top:16px;margin-top:10px}.compare-stats>div{display:flex;flex-direction:column;font-variant-numeric:tabular-nums}.compare-stats>div>span{color:var(--muted);font-size:12px}.compare-stats strong{font-size:20px}.compare-stats small{font-size:12px;color:var(--muted)}.compare-stats .button{margin-left:auto}.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);z-index:5;background:var(--ink);color:white;max-width:calc(100% - 32px);padding:12px 22px;border-radius:10px;box-shadow:0 5px 30px #12271d33;font-size:14px;text-align:center;overflow-wrap:anywhere}
@media(min-width:1500px){.container,.header-inner,.site-footer{max-width:1260px}.workspace{grid-template-columns:minmax(0,1fr) 340px;gap:28px}.drop-zone{min-height:330px}}
@media(max-width:1000px){.privacy-pill{font-size:12px;max-width:185px;line-height:1.6;border-radius:12px}.workspace{grid-template-columns:minmax(0,1fr) 290px;gap:18px}.settings-panel{padding:20px}.container,.header-inner,.site-footer{padding-left:24px;padding-right:24px}.summary{padding:17px}.size-flow{gap:9px}.size-flow strong{font-size:23px}.size-flow>span:first-child{font-size:16px}.saved-block{gap:9px}.saved-block strong{font-size:30px}.file-card{gap:10px;padding:12px}.file-actions{gap:0}.thumbnail{width:45px;height:45px}.file-actions .icon-button{width:31px}.drop-zone.compact{grid-template-columns:auto 1fr;gap:6px 13px}.drop-zone.compact .primary{grid-column:2;grid-row:3;justify-self:start;margin-top:9px}.format-guide{gap:20px}.format-guide>div{display:block}.guide-tag{display:inline-block;margin-bottom:8px}.empty-note{gap:7px;font-size:12px}.empty-note i{width:15px;margin:0}}
@media(max-width:760px){.site-header{height:68px}.header-inner{padding-left:20px;padding-right:20px}.header-label{display:none}.wordmark{font-size:26px}.container{padding:0 18px}.page-heading{padding:28px 0 23px;display:block}.eyebrow{font-size:12px;margin-bottom:6px}.intro{font-size:16px;line-height:1.8;margin-top:7px}.privacy-pill{display:inline-flex;max-width:none;margin-top:14px;padding:6px 10px;border-radius:20px}.workspace{grid-template-columns:minmax(0,1fr);gap:21px}.drop-zone{min-height:288px;padding:29px 16px 25px}.drop-zone h2{font-size:18px}.drop-zone.compact{grid-template-columns:auto 1fr auto;gap:5px 11px;padding:18px 13px}.drop-zone.compact .primary{grid-column:3;grid-row:1 / 3;font-size:12px;margin:0;padding:8px 10px;min-width:0}.drop-zone.compact .upload-symbol{width:33px;height:36px}.drop-zone.compact .file-limits{font-size:12px;line-height:1.7}.drop-zone.compact h2{font-size:14px}.settings-panel{position:static;padding:22px}.settings-heading{padding-bottom:16px;margin-bottom:19px}.empty-note{padding:24px 0 3px;gap:7px}.empty-note i{width:18px}.control-group{margin-bottom:23px}.control-group .hint{font-size:13px}.settings-note{font-size:13px}.format-options span{padding:9px 3px}.summary{padding:18px}.size-flow>span:first-child{font-size:17px}.size-flow strong{font-size:25px}.saved-block strong{font-size:34px}.file-actions .icon-button{width:35px;height:38px}.file-card{padding:12px 10px;flex-wrap:wrap}.file-info{min-width:100px}.file-meta{gap:5px}.thumbnail{width:43px;height:43px}.file-actions{gap:1px}.usage-notes{padding-top:15px;margin-top:22px}.format-guide{grid-template-columns:1fr;gap:16px}.format-guide>div{display:flex;gap:14px}.guide-tag{margin:0;min-width:50px}.format-guide p{font-size:14px}.site-footer{padding:22px 18px}.small-note{font-size:12px}.settings-heading .text-button,.results-toolbar .text-button{font-size:13px}.local-note p{font-size:13px}dialog{padding:19px;border-radius:14px}.dialog-head h2{font-size:19px}.compare-stage{height:38vh;min-height:200px}.compare-stats{gap:20px}.compare-stats strong{font-size:18px}.compare-stats .button{padding:9px 17px}.compare-stats small{font-size:12px}}
@media(max-width:410px){.file-actions{width:100%;justify-content:flex-end;border-top:1px solid #eef2ef;padding-top:5px;margin-top:2px}.file-actions .icon-button{width:42px}.summary{gap:10px;padding:15px}.size-flow{gap:7px}.size-flow>span:first-child{font-size:14px}.size-flow strong{font-size:20px}.saved-block strong{font-size:28px}.saved-block{gap:6px}.saved-block>span{font-size:12px}.drop-zone.compact .upload-symbol{display:none}.drop-zone.compact{grid-template-columns:1fr auto}.drop-zone.compact h2,.drop-zone.compact .file-limits{grid-column:1}.drop-zone.compact .primary{grid-column:2}.empty-note{gap:5px;font-size:12px}.empty-note i{width:10px}.step-number{width:20px;height:20px}.compare-stats{gap:15px;flex-wrap:wrap}.compare-stats .button{min-height:40px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}