:root{--bg:#f4f7fc;--card:#fff;--line:#dbe5f3;--text:#071b3a;--muted:#61708d;--blue:#17458f;--blue2:#e8eef8;--danger:#b42318}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.app-shell{padding:22px;max-width:1500px;margin:auto}.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.topbar h1{margin:0;font-size:32px}.topbar p{margin:6px 0 0;color:var(--muted)}button,input,textarea,select{font:inherit;border:1px solid var(--line);border-radius:16px;padding:12px;background:#fff;color:var(--text)}button{cursor:pointer;font-weight:700}.primary{background:var(--blue);color:#fff;border-color:var(--blue)}.ghost{background:var(--blue2);border:0}.danger{background:#fff1f0;color:var(--danger);border-color:#ffd0cc}.mini{padding:6px 10px}.status{margin-bottom:12px;color:var(--muted)}.layout{display:grid;grid-template-columns:260px minmax(320px,1fr) minmax(360px,520px);gap:16px}.card{background:var(--card);border:1px solid var(--line);border-radius:24px;padding:18px;box-shadow:0 12px 30px rgba(20,45,80,.05)}.side-head{display:flex;justify-content:space-between;align-items:center}.side h2{font-size:17px;margin:0 0 10px}.stack{display:grid;gap:8px}.item,.note{display:flex;gap:8px;align-items:center;justify-content:space-between;border:1px solid var(--line);border-radius:16px;padding:10px;background:#fff}.item.active,.note.active{background:#eef4ff;border-color:#9ab8ee}.item-name,.note-main{min-width:0;flex:1}.item-name,.note-title{font-weight:800;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.item-actions,.note-actions{display:flex;gap:4px}.item-actions button,.note-actions button{padding:5px 7px;border-radius:10px}.chips{display:flex;gap:8px;flex-wrap:wrap}.chip{border:1px solid var(--line);border-radius:999px;padding:7px 10px;background:#fff}.chip.active{background:#eef4ff;border-color:#9ab8ee}.toolbar{display:grid;grid-template-columns:1fr 150px auto;gap:10px;margin-bottom:12px}.notes{display:grid;gap:10px;max-height:70vh;overflow:auto}.note{align-items:flex-start}.note-meta{font-size:12px;color:var(--muted);margin-top:4px}.note-body{color:#33445f;margin-top:6px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;white-space:pre-wrap}.editor{display:flex;flex-direction:column;gap:12px}.editor-head{display:grid;grid-template-columns:1fr auto;gap:10px}.title{font-size:22px;font-weight:900}.row{display:grid;grid-template-columns:160px 1fr;gap:10px}textarea{min-height:48vh;resize:vertical;line-height:1.65}.actions{display:flex;gap:10px;flex-wrap:wrap}dialog{border:0;border-radius:24px;max-width:620px;width:calc(100% - 32px);padding:24px}dialog::backdrop{background:rgba(3,10,25,.35)}dialog img{width:100%;border:1px solid var(--line);border-radius:18px}@media(max-width:1050px){.layout{grid-template-columns:1fr}.notes{max-height:none}.side{order:2}.center{order:1}.editor{order:3}}@media(max-width:640px){.app-shell{padding:14px}.topbar h1{font-size:28px}.toolbar,.editor-head,.row{grid-template-columns:1fr}.card{border-radius:20px;padding:14px}textarea{min-height:38vh}}