:root{--bg:#0f1115;--surface:#171a21;--surface-2:#1f232c;--border:#2a2f3a;--text:#e6e8ec;--muted:#9aa3b2;--accent:#6c8cff;--accent-strong:#5a7bff;--danger:#ff6b6b;--shadow:0 10px 30px #00000059;--radius:12px;font-family:system-ui,Segoe UI,Roboto,PingFang SC,Microsoft YaHei,sans-serif}*{box-sizing:border-box}html,body{background:var(--bg);color:var(--text);min-height:100vh;margin:0;padding:0}#root{min-height:100vh}button{cursor:pointer;font-family:inherit}input,textarea{font-family:inherit}.muted{color:var(--muted);font-size:13px}.app-loading,.empty{color:var(--muted);flex-direction:column;justify-content:center;align-items:center;gap:12px;padding:80px 20px;display:flex}.spinner{border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;width:28px;height:28px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.btn-primary{background:var(--accent);color:#fff;border:none;border-radius:10px;padding:11px 18px;font-size:15px;font-weight:600;transition:background .15s,transform 50ms}.btn-primary:hover:not(:disabled){background:var(--accent-strong)}.btn-primary:active:not(:disabled){transform:translateY(1px)}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.btn-ghost{color:var(--text);border:1px solid var(--border);background:0 0;border-radius:10px;padding:10px 16px;font-size:14px;transition:border-color .15s,background .15s}.btn-ghost:hover:not(:disabled){border-color:var(--accent);background:var(--surface-2)}.btn-ghost:disabled{opacity:.6;cursor:not-allowed}.btn-mini{background:var(--surface-2);color:var(--text);border:1px solid var(--border);border-radius:8px;padding:5px 10px;font-size:13px;transition:border-color .15s}.btn-mini:hover{border-color:var(--accent)}.btn-mini.danger:hover{border-color:var(--danger);color:var(--danger)}.icon-btn{color:var(--muted);background:0 0;border:none;border-radius:8px;padding:4px 8px;font-size:18px;line-height:1}.icon-btn:hover{background:var(--surface-2);color:var(--text)}.form-error{color:#ff9b9b;background:#ff6b6b1f;border:1px solid #ff6b6b66;border-radius:10px;margin:0 0 16px;padding:10px 14px;font-size:14px}.auth-wrap{background:radial-gradient(circle at 30% 10%,#6c8cff1f,#0000 45%),radial-gradient(circle at 80% 90%,#8b5cf61a,#0000 40%);justify-content:center;align-items:center;min-height:100vh;padding:24px;display:flex}.auth-card{background:var(--surface);border:1px solid var(--border);width:100%;max-width:400px;box-shadow:var(--shadow);border-radius:16px;padding:32px 28px}.brand{text-align:center;margin-bottom:22px}.brand-logo{font-size:40px}.brand h1{margin:8px 0 4px;font-size:26px}.brand-sub{color:var(--muted);margin:0;font-size:13px}.tabs{background:var(--surface-2);border-radius:10px;gap:8px;margin-bottom:20px;padding:4px;display:flex}.tab{color:var(--muted);background:0 0;border:none;border-radius:8px;flex:1;padding:9px;font-size:14px;font-weight:600;transition:all .15s}.tab.active{background:var(--accent);color:#fff}.auth-form{flex-direction:column;gap:16px;display:flex}.auth-form label{color:var(--muted);flex-direction:column;gap:6px;font-size:13px;display:flex}.auth-form input{background:var(--surface-2);border:1px solid var(--border);color:var(--text);border-radius:10px;outline:none;padding:11px 12px;font-size:15px;transition:border-color .15s}.auth-form input:focus{border-color:var(--accent)}.code-row{gap:8px;display:flex}.code-row input{flex:1}.code-row .btn-ghost{white-space:nowrap;padding:11px 14px}.hint{color:var(--muted);text-align:center;margin:4px 0 0;font-size:12px}.notes-app{max-width:880px;margin:0 auto;padding:28px 20px 60px}.notes-header{justify-content:space-between;align-items:center;margin-bottom:22px;display:flex}.notes-title{align-items:center;gap:12px;display:flex}.notes-logo{font-size:30px}.notes-title h1{margin:0;font-size:22px}.toolbar{gap:12px;margin-bottom:20px;display:flex}.search{background:var(--surface);border:1px solid var(--border);color:var(--text);border-radius:10px;outline:none;flex:1;padding:11px 14px;font-size:15px;transition:border-color .15s}.search:focus{border-color:var(--accent)}.notes-list{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;display:grid}.note-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);flex-direction:column;gap:10px;padding:16px;transition:border-color .15s,transform .1s;display:flex}.note-card:hover{border-color:var(--accent)}.note-card.pinned{background:linear-gradient(180deg, #6c8cff14, var(--surface) 40%);border-color:#6c8cff80}.note-head{justify-content:space-between;align-items:flex-start;gap:8px;display:flex}.note-head h3{margin:0;font-size:16px}.pin-badge{color:var(--accent);white-space:nowrap;font-size:12px}.note-content{color:var(--text);white-space:pre-wrap;word-break:break-word;-webkit-line-clamp:4;-webkit-box-orient:vertical;margin:0;font-size:14px;display:-webkit-box;overflow:hidden}.tags{flex-wrap:wrap;gap:6px;display:flex}.tag{color:var(--accent);background:#6c8cff1f;border-radius:999px;padding:2px 8px;font-size:12px}.note-foot{justify-content:space-between;align-items:center;gap:8px;margin-top:auto;padding-top:4px;display:flex}.note-actions{gap:6px;display:flex}.modal-overlay{z-index:50;background:#0009;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.modal{background:var(--surface);border:1px solid var(--border);width:100%;max-width:520px;box-shadow:var(--shadow);border-radius:16px;max-height:90vh;padding:22px;overflow-y:auto}.modal-head{justify-content:space-between;align-items:center;margin-bottom:16px;display:flex}.modal-head h2{margin:0;font-size:18px}.editor-form{flex-direction:column;gap:14px;display:flex}.editor-form label{color:var(--muted);flex-direction:column;gap:6px;font-size:13px;display:flex}.editor-form input,.editor-form textarea{background:var(--surface-2);border:1px solid var(--border);color:var(--text);resize:vertical;border-radius:10px;outline:none;padding:11px 12px;font-size:15px;transition:border-color .15s}.editor-form input:focus,.editor-form textarea:focus{border-color:var(--accent)}.modal-foot{justify-content:flex-end;gap:10px;margin-top:4px;display:flex}.site-footer{text-align:center;color:var(--muted);justify-content:center;align-items:center;gap:8px;padding:24px 0 12px;font-size:12px;display:flex}.site-footer a{color:var(--muted);text-decoration:none}.site-footer a:hover{color:var(--accent);text-decoration:underline}.auth-card .site-footer{border-top:1px solid var(--border);margin-top:16px;padding-top:16px}