:root{color-scheme:dark;--accent:#ef654f;--panel:rgba(18,20,25,.82);--line:rgba(255,255,255,.14)}
*{box-sizing:border-box}html,body{margin:0;width:100%;height:100%;overflow:hidden;font-family:Inter,system-ui,-apple-system,Segoe UI,sans-serif;background:#111;color:#fff}.topbar{height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 28px;background:#fff;color:#161922;position:relative;z-index:10;border-bottom:1px solid #ddd}.brand{display:flex;align-items:center;gap:12px;font-size:22px}.logo{display:grid;place-items:center;width:42px;height:42px;border-radius:11px;background:var(--accent);font-size:11px;color:#fff}.tag{font-size:12px;letter-spacing:.18em;font-weight:700;color:#b23c2c}.app-shell{position:relative;height:calc(100% - 64px);background:#111}#officeCanvas{display:block;width:100%;height:100%;touch-action:none;outline:none}.upload-card{position:absolute;left:50%;bottom:40px;transform:translateX(-50%);width:min(560px,calc(100% - 40px));min-height:96px;padding:20px 26px;border-radius:22px;border:1px solid var(--line);background:var(--panel);backdrop-filter:blur(16px);display:flex;align-items:center;justify-content:center;gap:18px;cursor:pointer;box-shadow:0 24px 70px rgba(0,0,0,.4);transition:.2s}.upload-card:hover,.upload-card.drag{border-color:rgba(239,101,79,.9);transform:translateX(-50%) translateY(-3px)}.upload-card strong,.upload-card span{display:block}.upload-card strong{font-size:20px}.upload-card span{font-size:13px;color:#c7cad1;margin-top:5px}.pdf-icon{width:52px;height:64px;border-radius:8px 8px 16px 8px;background:#fff;color:var(--accent);display:grid;place-items:center;font-weight:900}.progress{position:absolute;left:18px;right:18px;bottom:9px;height:3px;background:rgba(255,255,255,.08);overflow:hidden;border-radius:99px;opacity:0}.progress.active{opacity:1}.progress span{width:35%;height:100%;background:var(--accent);animation:load 1s linear infinite}@keyframes load{from{transform:translateX(-120%)}to{transform:translateX(360%)}}.task-panel{position:absolute;right:28px;top:28px;width:350px;padding:20px;border:1px solid var(--line);border-radius:20px;background:var(--panel);backdrop-filter:blur(18px);opacity:0;pointer-events:none;transform:translateY(-12px);transition:.3s}.task-panel.visible{opacity:1;pointer-events:auto;transform:none}.task-panel h2{font-size:17px;margin:0 0 14px}.task-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.task-grid button{border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:13px 10px;background:rgba(255,255,255,.07);color:#fff;font-weight:650;cursor:pointer}.task-grid button:hover{background:rgba(239,101,79,.22);border-color:rgba(239,101,79,.5)}.status{position:absolute;left:22px;top:22px;padding:10px 14px;border-radius:99px;background:rgba(18,20,25,.7);backdrop-filter:blur(10px);font-size:13px;color:#ddd}@media(max-width:760px){.tag{display:none}.task-panel{left:18px;right:18px;top:18px;width:auto}.upload-card{bottom:20px}.status{display:none}}