:root{--bg:#f5f6f8;--surface:#fff;--border:#e2e5ea;--text:#1f2430;--muted:#6b7280;--primary:#2563eb;--primary-dark:#1d4ed8;--danger:#dc2626;--danger-dark:#b91c1c;--success:#16a34a;--radius:8px;--shadow:0 1px 3px #1018281a, 0 1px 2px #1018280f}*{box-sizing:border-box}html,body,#root{height:100%}body{color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}h1,h2,h3{margin:0}button{font-family:inherit}.btn{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);color:var(--text);cursor:pointer;padding:8px 16px;font-size:14px;font-weight:500;transition:background .15s,border-color .15s}.btn:hover{background:#f0f2f5}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-danger{color:var(--danger);border-color:#f3d2d2}.btn-danger:hover{background:#fdf0f0}.btn-ghost{color:var(--muted);background:0 0;border-color:#0000}.btn-ghost:hover{color:var(--text);background:0 0}.btn-block{width:100%}.btn-link{color:var(--primary);cursor:pointer;background:0 0;border:none;padding:4px 0;font-size:14px}.app-shell,.editor-shell{flex-direction:column;min-height:100%;display:flex}.topbar{background:var(--surface);border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:16px;padding:12px 24px;display:flex}.brand{color:var(--primary);align-items:center;font-size:18px;font-weight:700;display:flex}.topbar-actions{align-items:center;gap:10px;display:flex}.user-chip{color:var(--primary);background:#eef2ff;border-radius:999px;padding:6px 12px;font-size:13px;font-weight:600}.content{flex-direction:column;gap:36px;width:100%;max-width:920px;margin:0 auto;padding:32px 24px;display:flex}.document-section h2{text-transform:uppercase;letter-spacing:.04em;color:var(--muted);margin-bottom:12px;font-size:15px}.document-list{flex-direction:column;gap:8px;margin:0;padding:0;list-style:none;display:flex}.document-row{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);color:var(--text);box-shadow:var(--shadow);justify-content:space-between;align-items:center;gap:12px;padding:14px 16px;text-decoration:none;transition:border-color .15s;display:flex}.document-row:hover{border-color:var(--primary)}.document-title{font-weight:600}.document-meta{color:var(--muted);gap:12px;font-size:13px;display:flex}.empty{color:var(--muted);background:var(--surface);border:1px dashed var(--border);border-radius:var(--radius);text-align:center;margin:0;padding:20px}.error-banner{color:var(--danger);border-radius:var(--radius);background:#fdf0f0;border:1px solid #f3d2d2;margin:0;padding:12px 16px}.auth-shell{justify-content:center;align-items:center;min-height:100%;padding:24px;display:flex}.login-card{background:var(--surface);border:1px solid var(--border);width:100%;max-width:360px;box-shadow:var(--shadow);border-radius:12px;flex-direction:column;gap:16px;padding:32px;display:flex}.login-card h1{color:var(--primary);font-size:28px}.login-card .subtitle{color:var(--muted);margin:-8px 0 4px;font-size:14px}.login-card label{flex-direction:column;gap:6px;font-size:13px;font-weight:600;display:flex}.login-card input{border:1px solid var(--border);border-radius:var(--radius);padding:10px 12px;font-size:14px;font-weight:400}.login-card input:focus{border-color:var(--primary);outline:none}.editor-header{flex:1;align-items:center;gap:12px;max-width:560px;display:flex}.title-input{color:var(--text);background:0 0;border:none;border-bottom:2px solid #0000;flex:1;padding:4px 0;font-size:18px;font-weight:700}.title-input:focus{border-bottom-color:var(--primary);outline:none}.save-status{color:var(--muted);white-space:nowrap;font-size:12px}.save-saved{color:var(--success)}.save-error{color:var(--danger)}.readonly-badge{color:var(--muted);background:#f0f2f5;border-radius:999px;padding:6px 12px;font-size:13px}.editor-card{background:var(--surface);border:1px solid var(--border);width:100%;max-width:860px;box-shadow:var(--shadow);border-radius:12px;flex-direction:column;flex:1;margin:24px auto;display:flex}.toolbar{border-bottom:1px solid var(--border);flex-wrap:wrap;align-items:center;gap:4px;padding:8px 12px;display:flex}.toolbar-btn{min-width:32px;height:32px;color:var(--text);cursor:pointer;background:0 0;border:1px solid #0000;border-radius:6px;padding:0 8px;font-size:14px;font-weight:700}.toolbar-btn:hover{background:#f0f2f5}.toolbar-btn.active{color:var(--primary);background:#eef2ff;border-color:#c7d7fe}.toolbar-btn:disabled{opacity:.4;cursor:not-allowed}.toolbar-divider{background:var(--border);width:1px;height:20px;margin:0 4px}.editor-content .ProseMirror{outline:none;min-height:60vh;padding:24px 32px;font-size:16px;line-height:1.6}.editor-content .ProseMirror p{margin:0 0 .8em}.editor-content .ProseMirror h1,.editor-content .ProseMirror h2{margin:.6em 0 .4em}.overlay{z-index:50;background:#0f172a73;justify-content:center;align-items:center;padding:24px;display:flex;position:fixed;inset:0}.dialog{background:var(--surface);border-radius:12px;width:100%;max-width:420px;padding:24px;box-shadow:0 20px 40px #0003}.dialog h3{margin-bottom:16px;font-size:17px}.dialog form{flex-direction:column;gap:12px;display:flex}.dialog input{border:1px solid var(--border);border-radius:var(--radius);padding:10px 12px;font-size:14px}.dialog input:focus{border-color:var(--primary);outline:none}.file-input{border:1px dashed var(--border)!important;padding:12px!important}.hint{color:var(--muted);margin:0;font-size:13px}.dialog-actions{justify-content:flex-end;gap:10px;margin-top:8px;display:flex}.toast-container{z-index:100;flex-direction:column;gap:10px;display:flex;position:fixed;bottom:20px;right:20px}.toast{border-radius:var(--radius);color:#fff;background:#1f2430;max-width:360px;padding:12px 16px;font-size:14px;animation:.2s toast-in;box-shadow:0 8px 20px #0003}.toast-error{background:var(--danger)}.toast-success{background:var(--success)}@keyframes toast-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.center-page{justify-content:center;align-items:center;min-height:100%;display:flex}.spinner span{border:2px solid var(--border);border-top-color:var(--primary);border-radius:50%;width:20px;height:20px;animation:.7s linear infinite spin;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}