:root{--red: #b91c1c;--red-dark: #991b1b;--ink: #1f2328;--muted: #57606a;--line: #d8dee4;--bg: #f6f8fa;--card: #ffffff;--ok: #1a7f37;--radius: 10px;--shadow: 0 1px 3px rgba(27, 31, 36, .12), 0 1px 2px rgba(27, 31, 36, .08);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--ink)}*{box-sizing:border-box}body{margin:0;background:var(--bg)}.container{max-width:1100px;margin:0 auto;padding:0 20px}.app{min-height:100vh;display:flex;flex-direction:column}.header{background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}.header__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:12px;padding-bottom:12px;flex-wrap:wrap}.brand{display:flex;align-items:center;gap:12px}.brand__mark{background:var(--red);color:#fff;font-weight:800;letter-spacing:.5px;padding:8px 10px;border-radius:8px;font-size:15px}.brand__name{font-weight:700;font-size:18px;line-height:1.1}.brand__tag{color:var(--muted);font-size:13px}.header__controls{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.tabs{display:flex;gap:6px}.share-btn{display:inline-flex;align-items:center;gap:7px;line-height:1}.share-btn:hover:not(:disabled){border-color:var(--red);color:var(--red)}.share-btn svg{display:block}.tab{border:1px solid var(--line);background:var(--card);color:var(--ink);padding:8px 14px;border-radius:999px;cursor:pointer;font-size:14px;font-weight:600}.tab:hover{border-color:var(--red)}.tab--active{background:var(--red);border-color:var(--red);color:#fff}.container>main,main.container{flex:1;width:100%}.workspace{padding:28px 0 60px}.hero{margin-bottom:24px}.hero h1{font-size:30px;margin:0 0 10px;letter-spacing:-.02em}.hero__lede{color:var(--muted);font-size:17px;max-width:720px;line-height:1.5;margin:0 0 14px}.hero__points{list-style:none;padding:0;margin:0;display:flex;gap:18px;flex-wrap:wrap;color:var(--ink);font-size:14px}.dropzone{border:2px dashed var(--line);border-radius:var(--radius);background:var(--card);padding:48px 24px;text-align:center;cursor:pointer;color:var(--muted);transition:border-color .15s,background .15s}.dropzone:hover,.dropzone:focus-visible{border-color:var(--red);outline:none}.dropzone--active{border-color:var(--red);background:#fff5f5}.dropzone__icon{color:var(--red)}.dropzone__label{font-size:18px;font-weight:700;color:var(--ink);margin:12px 0 4px}.dropzone__sublabel{margin:0;font-size:14px}.toolbar{display:flex;align-items:center;justify-content:space-between;gap:16px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:12px 16px;margin-bottom:18px;flex-wrap:wrap}.toolbar__file{display:flex;flex-direction:column}.toolbar__count{color:var(--muted);font-size:13px}.toolbar__actions{display:flex;gap:8px;flex-wrap:wrap}.toolbar__actions button,.btn{border:1px solid var(--line);background:var(--card);color:var(--ink);padding:8px 14px;border-radius:8px;cursor:pointer;font-size:14px;font-weight:600}.toolbar__actions button:hover:not(:disabled){border-color:var(--red)}.btn--primary{background:var(--red);border-color:var(--red);color:#fff}.btn--primary:hover:not(:disabled){background:var(--red-dark)}.btn--ghost{background:transparent}button:disabled{opacity:.5;cursor:not-allowed}.pagegrid{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:18px}.pagecard{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:10px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:8px}.pagecard--deleted{opacity:.55;border-style:dashed}.pagecard__canvas{position:relative;display:flex;align-items:center;justify-content:center;height:220px;background:var(--bg);border-radius:6px;overflow:hidden}.pagecard__canvas img{max-width:100%;max-height:100%;transition:transform .2s ease;box-shadow:0 0 0 1px var(--line);background:#fff}.pagecard__placeholder{color:var(--muted);font-size:13px}.pagecard__deleted-x{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:#b91c1c1f;color:var(--red);font-weight:700;letter-spacing:1px;text-transform:uppercase;font-size:13px}.pagecard__meta{display:flex;justify-content:center;font-size:13px}.pagecard__num{font-weight:600}.pagecard__orig{color:var(--muted);font-weight:400}.pagecard__tools{display:flex;justify-content:space-between;gap:4px}.pagecard__tools button{flex:1;border:1px solid var(--line);background:var(--card);border-radius:6px;padding:6px 0;cursor:pointer;font-size:14px}.pagecard__tools button:hover:not(:disabled){border-color:var(--red);color:var(--red)}.pagecard__tools button.is-active{background:var(--red);color:#fff;border-color:var(--red)}.filelist{list-style:none;padding:0;margin:18px 0;display:flex;flex-direction:column;gap:8px}.filelist__item{display:flex;align-items:center;gap:12px;background:var(--card);border:1px solid var(--line);border-radius:8px;padding:10px 14px}.filelist__pos{background:var(--bg);border-radius:6px;width:26px;height:26px;display:grid;place-items:center;font-weight:700;font-size:13px}.filelist__name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.filelist__actions{display:flex;gap:4px}.filelist__actions button{border:1px solid var(--line);background:var(--card);border-radius:6px;padding:4px 10px;cursor:pointer}.filelist__actions button:hover:not(:disabled){border-color:var(--red)}.modebox{border:1px solid var(--line);border-radius:var(--radius);background:var(--card);padding:18px;margin-bottom:18px}.modebox legend{font-weight:700;padding:0 6px}.modebox label{display:flex;align-items:center;gap:8px;padding:8px 0;font-size:15px}.num{width:64px;padding:4px 6px;border:1px solid var(--line);border-radius:6px}.rangein{width:140px;padding:4px 8px;border:1px solid var(--line);border-radius:6px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.status{color:var(--ok);font-weight:600}.error{color:var(--red);background:#fff5f5;border:1px solid #f5c2c2;border-radius:8px;padding:10px 14px;font-weight:600}.privacy{margin-top:20px;color:var(--muted);font-size:14px}.privacy code,.footer code{background:var(--bg);padding:1px 5px;border-radius:4px;font-size:.9em}.footer{border-top:1px solid var(--line);background:var(--card);padding:24px 0;color:var(--muted);font-size:14px}.footer__fine{font-size:12px;opacity:.85}@media(max-width:640px){.hero h1{font-size:24px}.header__inner{align-items:flex-start}}