:root{font-family:Inter,"Helvetica Neue",Arial,"Noto Sans JP",sans-serif;color:#23312d;background:#f6f7f3;font-synthesis:none;--green:#174d3c;--line:#dce2d9;--muted:#6a776f}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}button,a,input,select,textarea{outline-offset:4px}button{cursor:pointer;border:1px solid var(--line);background:white;border-radius:8px;padding:10px 16px;color:inherit;font-weight:600}button:hover{border-color:#829b8b;background:#f0f5ed}button:disabled{opacity:.5;cursor:wait}button.primary{background:var(--green);color:white;border-color:var(--green)}button.primary:hover{background:#226348}button.quiet{background:transparent;border-color:transparent}a{color:var(--green)}input,select,textarea{width:100%;padding:11px 12px;border:1px solid #cbd5cb;border-radius:7px;background:#fff;color:inherit}textarea{resize:vertical;min-height:100px}label{display:block;font-size:13px;font-weight:600;margin:18px 0 7px}small,.muted{color:var(--muted)}h1,h2,h3,p{margin-top:0}h1{font-size:40px;font-weight:550;letter-spacing:-1.5px;line-height:1.3}h2{font-size:23px;font-weight:550}h3{font-size:18px}p{line-height:1.8}hr{border:0;border-top:1px solid var(--line);margin:25px 0}.top{height:82px;padding:0 38px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:22px;background:#fff}.brand{display:flex;gap:10px;align-items:center;text-decoration:none;color:#172c24;font-weight:650;font-size:19px}.brand small{font-size:9px;letter-spacing:1.8px;font-weight:500;margin-left:18px}.mark{display:grid;place-items:center;background:var(--green);color:#fff;border-radius:10px;width:38px;height:38px;font-size:29px;font-family:Georgia,serif}.topnote{margin-left:auto;font-size:12px;color:var(--muted)}footer{display:flex;justify-content:space-between;padding:25px 38px;font-size:11px;color:var(--muted);border-top:1px solid var(--line)}.wrap{max-width:1160px;margin:auto;padding:54px 32px 70px}.eyebrow{font-size:11px;letter-spacing:2px;color:var(--green);font-weight:650;margin-bottom:15px}.intro{display:flex;justify-content:space-between;align-items:flex-end;gap:28px;margin-bottom:34px}.intro p{margin:0;color:var(--muted);font-size:14px}.intro h1{margin-bottom:12px}.stats{display:flex;gap:14px;margin:25px 0}.stat{border:1px solid var(--line);padding:16px 24px;background:white;border-radius:10px;min-width:150px}.stat b{font-size:24px;font-weight:500;display:block}.stat span{font-size:11px;color:var(--muted)}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.project{border:1px solid var(--line);border-radius:12px;padding:22px;background:white;display:flex;flex-direction:column;min-height:205px}.project h3{margin:24px 0 12px}.project a{font-size:13px;text-decoration:none;margin-top:auto;padding-top:15px}.badge{font-size:11px;border:1px solid var(--line);padding:4px 8px;border-radius:20px;display:inline-block;color:var(--green);align-self:start}.empty{padding:50px 24px;border:1px dashed #b7c5b9;border-radius:12px;text-align:center;background:#fff;grid-column:1/-1}.guide{display:grid;grid-template-columns:repeat(3,1fr);margin-top:32px;border-top:1px solid var(--line);padding-top:24px;gap:25px}.guide b{font-size:13px}.guide p{font-size:12px;color:var(--muted);margin:7px 0}.login{max-width:430px;margin:70px auto 100px;padding:32px;border:1px solid var(--line);background:white;border-radius:16px}.login h1{font-size:30px}.login p{font-size:13px;color:var(--muted)}.login button{width:100%;margin-top:22px}.notice{font-size:12px;background:#edf2e8;padding:12px 15px;border-radius:8px;line-height:1.8;margin:18px 0}.error{color:#a03030;font-size:13px;white-space:pre-wrap}.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.row>*{flex-shrink:0}.row .grow{flex:1}.row select{width:auto}.right{margin-left:auto}.review-head{padding:22px 28px;background:white;border-bottom:1px solid var(--line)}.review-head h1{font-size:22px;letter-spacing:-.5px;margin:0}.review-head small{font-size:11px}.toolbar{display:flex;align-items:center;gap:8px;margin-top:18px;flex-wrap:wrap}.toolbar select{width:auto;max-width:220px;font-size:12px;padding:8px}.toolbar button{font-size:12px;padding:8px 11px}.workspace{display:grid;grid-template-columns:minmax(0,1fr) 350px;min-height:calc(100vh - 230px)}.canvas{background:#e9ede5;padding:22px;min-width:0;overflow:auto}.frame-shell{margin:0 auto;background:#fff;border:1px solid #d7dfd2;box-shadow:0 5px 25px #243b2010;max-width:100%;transition:width .2s}.frame-shell iframe{width:100%;height:calc(100vh - 290px);min-height:500px;border:0;display:block;background:#fff}.canvas-note{font-size:11px;color:var(--muted);text-align:center;margin:0 0 13px}.sidebar{background:#fff;border-left:1px solid var(--line);padding:20px;max-height:calc(100vh - 200px);overflow:auto}.sidebar h2{font-size:16px;margin-bottom:15px}.sidebar input,.sidebar select{font-size:12px;padding:8px}.sidebar label{margin-top:10px}.comment{border:1px solid var(--line);border-radius:10px;padding:14px;margin:12px 0}.comment.current{border-color:var(--green)}.comment p{font-size:13px;white-space:pre-wrap;overflow-wrap:anywhere;margin:12px 0}.comment .meta{font-size:10px;color:var(--muted)}.comment button,.comment select{font-size:11px;padding:6px 8px}.comment .num{background:var(--green);color:white;border-radius:50%;display:inline-grid;place-items:center;width:24px;height:24px;font-size:11px}.comment .reply{border-left:2px solid var(--line);padding-left:10px;margin-top:13px}.comment .reply p{margin:5px 0;font-size:12px}.loading{padding:70px;text-align:center;color:var(--muted)}dialog{border:1px solid var(--line);border-radius:14px;padding:28px;width:min(520px,92vw);max-height:90vh;box-shadow:0 20px 70px #0002}dialog::backdrop{background:#132c2355;backdrop-filter:blur(3px)}dialog h2{margin-bottom:12px}dialog .row{justify-content:flex-end;margin-top:24px}dialog p{font-size:13px}#toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);padding:12px 20px;background:#173d30;color:white;font-size:13px;border-radius:8px;z-index:100;display:none;max-width:90vw}.file-drop{border:1px dashed #9cae9e;background:#f6f8f3;border-radius:10px;padding:20px}.file-drop input{background:transparent;border:0;font-size:12px;padding:0}.file-drop small{display:block;line-height:1.8;margin-top:12px}.steps{font-size:12px;line-height:1.9;color:var(--muted)}.help{max-width:800px}.help li{margin:12px 0;line-height:1.8}.help code{background:#e8eee3;padding:2px 5px}.danger{color:#a23030}.width-active{background:#e6efdf}.pill{font-size:10px;background:#edf4e8;padding:4px 7px;border-radius:4px}
@media(max-width:900px){.brand small,.topnote{display:none}.top{height:65px;padding:0 20px}.wrap{padding:35px 20px}.grid{grid-template-columns:repeat(2,1fr)}.workspace{grid-template-columns:1fr}.sidebar{border-left:0;border-top:1px solid var(--line);max-height:none}.frame-shell iframe{height:65vh}.review-head{padding:18px}.canvas{padding:12px}.intro{align-items:flex-start}.intro h1{font-size:31px}footer{padding:20px}.guide{grid-template-columns:1fr;gap:8px}}@media(max-width:550px){.grid{grid-template-columns:1fr}.intro{flex-direction:column}.stats{flex-wrap:wrap}.stat{min-width:120px}.login{margin:35px 18px 60px}.review-head .row{gap:8px}.review-head>.row>.grow{flex-basis:100%;min-width:0;margin-bottom:6px}.toolbar select{max-width:150px}.sidebar{padding:18px}footer span{max-width:160px;text-align:right}}

.file-drop{transition:background .15s,border-color .15s}.file-drop .drop-title{font-size:15px;font-weight:650;margin:0 0 5px}.file-drop .drop-subtitle{font-size:12px;color:var(--muted);margin:0 0 16px}.file-drop.drag-over{background:#e2efda;border:2px solid #174d3c;padding:19px}.file-drop.has-file{border-color:#73966b}.file-drop .file-selection{font-size:12px;font-weight:600;color:var(--green);overflow-wrap:anywhere;margin:12px 0 0}.file-selection:empty{display:none}

.mode-switch{display:inline-flex;gap:3px;padding:3px;background:#e8eee3;border-radius:9px}.mode-switch button{border:0}.mode-switch button[aria-pressed="false"]{background:transparent;color:#60715d}.canvas-note{line-height:1.7}

.upload-options{margin-top:22px}.upload-tabs{display:grid;grid-template-columns:1fr 1fr;gap:8px}.upload-tabs button{text-align:left;font-size:13px;padding:12px}.upload-tabs small,.ai-entry small{display:block;font-size:10px;font-weight:400;margin-top:5px;line-height:1.5}.upload-tabs .primary small{color:#dcebdc}.ai-entry{width:100%;text-align:left;margin-top:16px;background:#edf2e8}.upload-options small{line-height:1.8}#folder-panel{padding:6px 0 12px}#folder-selection{font-size:12px;overflow-wrap:anywhere}#ai-path{font-size:13px}