:root{--blue:#1E40AF;--blue-2:#2563eb;--ink:#0f172a;--mut:#475569;--line:#e2e8f0;--bg:#f4f6fb;--card:#fff;--sel:#2563eb}
[hidden]{display:none!important}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{font:16px/1.45 system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg);display:flex;flex-direction:column;min-height:100dvh}
button{font:inherit;cursor:pointer;border-radius:10px;border:1px solid var(--line);background:var(--card);color:var(--ink);padding:.5rem .85rem}
button:disabled{opacity:.45;cursor:default}
button.primary{background:var(--blue);border-color:var(--blue);color:#fff;font-weight:600}
button.ghost{background:transparent}
button.link{background:none;border:0;color:var(--blue);text-decoration:underline;padding:.25rem 0}
button.link.danger{color:#b91c1c}
.bar{display:flex;align-items:center;gap:.6rem;padding:.55rem .8rem;background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.brand{display:flex;align-items:center;gap:.45rem;font-weight:700;color:var(--ink);text-decoration:none}
.brand img{border-radius:7px}
.bar-mid{flex:1;text-align:center;font-size:.92rem;color:var(--mut);overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.bar-right{display:flex;gap:.4rem}
main{flex:1;display:flex;flex-direction:column}
.start{max-width:560px;margin:6vh auto;padding:0 1rem;text-align:center}
.start h1{font-size:1.6rem;margin:.2rem 0}
.muted{color:var(--mut)}
.small{font-size:.86rem}
.drop{display:flex;flex-direction:column;align-items:center;gap:.6rem;border:2px dashed #94a3b8;border-radius:16px;padding:2.2rem 1rem;margin:1.4rem 0 1rem;background:#fff;color:var(--mut);cursor:pointer}
.drop.over{border-color:var(--blue);background:#eef2ff}
.drop u{color:var(--blue)}
.private{display:flex;gap:.5rem;align-items:flex-start;text-align:left;font-size:.9rem;color:var(--mut);background:#fff;border:1px solid var(--line);border-radius:12px;padding:.7rem .9rem}
.links{font-size:.9rem}
.links a{color:var(--blue)}
.note{min-height:1.4em;color:#b45309;font-size:.92rem}
.editor{display:flex;flex-direction:column;flex:1;min-height:0}
.tools{display:flex;gap:.35rem;padding:.5rem .6rem;background:#fff;border-bottom:1px solid var(--line);overflow-x:auto;align-items:center}
.tools button[data-tool]{display:flex;flex-direction:column;align-items:center;min-width:64px;padding:.35rem .4rem;font-size:.72rem;gap:.1rem}
.tools button[data-tool] .ico{font-size:1.05rem;font-weight:700;line-height:1.2}
.tools button.on{background:#dbeafe;border-color:var(--blue-2);color:var(--blue)}
.spacer{flex:1}
.hint{margin:0;padding:.35rem .8rem;font-size:.82rem;color:var(--mut);text-align:center}
.stage{flex:1;overflow:auto;padding:.6rem;display:flex;justify-content:center;align-items:flex-start;-webkit-overflow-scrolling:touch}
.page-wrap{position:relative;box-shadow:0 2px 14px rgba(15,23,42,.18);background:#fff;touch-action:manipulation;max-width:100%}
.page-wrap.placing{cursor:crosshair}
#page{display:block;max-width:100%;height:auto}
.marks{position:absolute;inset:0}
.mark{position:absolute;border:1px solid transparent;user-select:none;-webkit-user-select:none;touch-action:none;display:flex;align-items:center;overflow:hidden;cursor:move}
.mark.text,.mark.date{white-space:nowrap;line-height:1;padding:0 2px;color:#111;font-family:Helvetica,Arial,sans-serif}
.mark img,.mark svg{width:100%;height:100%;display:block;pointer-events:none}
.mark.sel{border-color:var(--sel);background:rgba(37,99,235,.06)}
.mark .handle{position:absolute;right:-9px;bottom:-9px;width:18px;height:18px;border-radius:50%;background:var(--sel);border:2px solid #fff;display:none;cursor:nwse-resize;touch-action:none}
.mark.sel .handle{display:block}
.pager{display:flex;align-items:center;justify-content:center;gap:.8rem;padding:.5rem;background:#fff;border-top:1px solid var(--line);font-size:.9rem}
dialog.sheet{border:0;border-radius:16px;padding:1.2rem 1.2rem 1rem;width:min(92vw,460px);box-shadow:0 10px 40px rgba(0,0,0,.25)}
dialog::backdrop{background:rgba(15,23,42,.45)}
dialog h2{margin:0 0 .4rem;font-size:1.2rem}
#pad{width:100%;height:auto;aspect-ratio:8/3;border:1px dashed #94a3b8;border-radius:10px;background:#fff;touch-action:none;display:block}
.check{display:flex;gap:.5rem;align-items:center;margin:.6rem 0;font-size:.9rem}
.row{display:flex;gap:.5rem;align-items:center;margin-top:.6rem}
.row.wrap{flex-wrap:wrap}
.col{display:flex;flex-direction:column;gap:.5rem;margin-top:.6rem}
.col label{display:flex;flex-direction:column;gap:.2rem;font-size:.85rem;color:var(--mut)}
.col input,#text-input{font:inherit;padding:.5rem .6rem;border:1px solid var(--line);border-radius:8px;width:100%}
.col .row{margin:0}
.feats{margin:.4rem 0 .8rem;padding-left:1.2rem;font-size:.92rem}
.plans{display:grid;grid-template-columns:1fr 1fr;gap:.6rem}
.plan{display:flex;flex-direction:column;align-items:flex-start;gap:.15rem;padding:.8rem;text-align:left;border:2px solid var(--line)}
.plan[data-product="lifetime"]{border-color:var(--blue)}
.plan .price{font-size:1.25rem;font-weight:700;color:var(--blue)}
.plan small{color:var(--mut);font-size:.78rem}
.legal{color:var(--mut)}
.legal a{color:var(--mut)}
.toast{position:fixed;left:50%;bottom:1.2rem;transform:translateX(-50%);background:var(--ink);color:#fff;padding:.6rem 1rem;border-radius:12px;font-size:.92rem;max-width:90vw;z-index:20}
@media (max-width:480px){.bar-right .ghost{padding:.45rem .6rem;font-size:.86rem}.plans{grid-template-columns:1fr}.start h1{font-size:1.35rem}}