:root{--border:#eee;--bg:#fff;--muted:#666}*{box-sizing:border-box}html,body,#root{height:100%}body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,"Apple Color Emoji","Segoe UI Emoji";background:var(--bg)}.app{display:grid;grid-template-columns:320px 1fr;height:100%}.sidebar{border-right:1px solid var(--border);display:flex;flex-direction:column}.topbar{padding:8px;display:flex;gap:8px}.list{overflow-y:auto;-webkit-overflow-scrolling:touch}.list-item{padding:12px;border-bottom:1px solid var(--border);cursor:pointer}.list-item--active{background:#f7f7f7}.meta{font-size:12px;color:var(--muted)}.editor{display:grid;grid-template-rows:auto 1fr auto;height:100%}.editor .toolbar{padding:8px;border-bottom:1px solid var(--border);display:flex;gap:8px}.editor textarea{width:100%;height:100%;padding:12px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,Liberation Mono,monospace}.editor .attachments{padding:8px;border-top:1px solid var(--border)}.images{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px}.images img{width:120px;height:120px;object-fit:cover;border-radius:8px}@media (max-width: 840px){.app{grid-template-columns:1fr}.sidebar{position:sticky;top:0;background:var(--bg);z-index:10;max-height:42vh;border-right:none;border-bottom:1px solid var(--border)}.list{max-height:calc(42vh - 50px)}}.statusbar{position:fixed;bottom:8px;right:8px;padding:6px 10px;border-radius:8px;background:#000000b3;color:#fff;font-size:12px}