:root{--bg:#fff;--fg:#1c1c28;--mut:#666;--line:#d9d9e3;--acc:#5b4bdb;--box:#f5f5fa}
@media (prefers-color-scheme:dark){:root{--bg:#16161d;--fg:#ececf3;--mut:#a0a0b0;--line:#34343f;--acc:#8a7dff;--box:#1f1f29}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font-family:system-ui,-apple-system,"Hiragino Sans","Noto Sans JP",sans-serif;line-height:1.6}
header{display:flex;justify-content:space-between;align-items:center;padding:12px 20px;border-bottom:1px solid var(--line)}
h1{font-size:1.3rem;margin:0}
.conn{font-size:.8rem;color:var(--mut)}.conn.ok{color:#1a9a4a}.conn.ng{color:#d33}
.tabs{display:flex;gap:4px;padding:8px 20px 0;border-bottom:1px solid var(--line)}
.tab{background:none;border:none;color:var(--mut);padding:10px 16px;cursor:pointer;border-bottom:3px solid transparent;font-size:1rem}
.tab.active{color:var(--fg);border-bottom-color:var(--acc);font-weight:600}
main{max-width:1200px;margin:0 auto;padding:16px 20px 60px}
.panel{display:none}.panel.active{display:block}
.cols{display:grid;grid-template-columns:1fr 1fr;gap:24px}
@media(max-width:800px){.cols{grid-template-columns:1fr}}
label{display:block;margin:10px 0;font-size:.9rem}
input[type=text],input[type=number],input[type=password],textarea{width:100%;padding:8px;border:1px solid var(--line);border-radius:6px;background:var(--bg);color:var(--fg);font:inherit;margin-top:4px}
button,.btn{padding:9px 16px;border:1px solid var(--line);border-radius:8px;background:var(--box);color:var(--fg);cursor:pointer;font:inherit;text-decoration:none;display:inline-block}
button.primary,.btn.primary{background:var(--acc);border-color:var(--acc);color:#fff;font-weight:600}
button.small{padding:5px 12px;font-size:.85rem}
button:disabled{opacity:.5;cursor:wait}
.note{font-size:.8rem;color:var(--mut);margin:4px 0 10px}
.box{background:var(--box);border:1px solid var(--line);border-radius:6px;padding:10px;white-space:pre-wrap;font-size:.85rem;margin:6px 0 12px}
fieldset{border:1px solid var(--line);border-radius:8px;margin:12px 0;padding:8px 12px}
legend{font-size:.9rem;padding:0 6px}
.choices{display:flex;flex-wrap:wrap;gap:6px 14px}
.choices label{margin:0;display:flex;align-items:center;gap:5px;font-size:.9rem}
.check{display:flex;align-items:center;gap:8px}
.row{display:flex;gap:8px;flex-wrap:wrap;margin:6px 0}
.preview{max-width:100%;border-radius:8px;border:1px solid var(--line);display:block;margin:8px 0}
.clickable{cursor:crosshair}
.drop{position:relative;border:2px dashed var(--line);border-radius:10px;padding:40px 16px;text-align:center;color:var(--mut)}
.drop.over{border-color:var(--acc)}
.drop input{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%;height:100%}
.stage{position:relative;display:inline-block;max-width:100%;overflow:hidden;border-radius:8px;cursor:crosshair;line-height:0}
.stage img{max-width:100%;display:block}
.frame{position:absolute;border:3px solid #fff;outline:2px solid #000;box-shadow:0 0 0 9999px rgba(0,0,0,.62);pointer-events:none;
 background-image:linear-gradient(#fff6 1px,transparent 1px),linear-gradient(90deg,#fff6 1px,transparent 1px);background-size:33.333% 33.333%}
.progress{position:relative;height:26px;background:var(--box);border:1px solid var(--line);border-radius:6px;overflow:hidden;margin:10px 0}
#up-bar{height:100%;width:0;background:var(--acc);transition:width .3s}
#up-ptext{position:absolute;inset:0;display:flex;align-items:center;padding:0 8px;font-size:.8rem}
.upsell{font-size:.9rem;margin:6px 0 12px;padding-left:20px}
details{margin:10px 0}summary{cursor:pointer;font-weight:600}
.label{margin:0;font-weight:600}
.plan{font-size:.8rem;margin-right:10px;padding:2px 8px;border-radius:10px;background:var(--box)}.plan.ok{color:#1a9a4a}.plan.ng{color:#d33}