:root{--bg:#061012;--card:#0d1a1d;--border:#1a3035;--info:#40e0d0;--accent:teal;--danger:#f85149;--text:#e6edf3;--text-secondary:#80cbc4;--radius:12px}*{box-sizing:border-box;touch-action:manipulation;margin:0;padding:0;font-family:-apple-system,sans-serif}html,body{background:var(--bg);width:100%;height:100%;color:var(--text);-webkit-font-smoothing:antialiased;overflow-x:hidden}.container{flex-direction:column;min-height:100vh;padding:10px 10px 100px;display:flex}.main-header{z-index:1000;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);background:#0d1a1dcc;margin:-10px -10px 15px;padding:15px;position:sticky;top:0}.header-content{justify-content:space-between;align-items:center;display:flex}.logo-box{color:var(--info);align-items:center;gap:8px;font-weight:800;display:flex}.cn-logo-small{background:var(--info);color:#fff;border-radius:6px;place-items:center;width:30px;height:30px;font-size:14px;display:grid}.header-actions{gap:8px;display:flex}.btn-tab{background:var(--accent);color:#fff;border:1px solid var(--info);border-radius:8px;padding:6px 12px;font-size:11px;font-weight:700}.btn-scan{background:var(--info);color:#fff;border:none;border-radius:8px;padding:6px 12px;font-size:11px;font-weight:700}.form-grid{flex-direction:column;gap:15px;display:flex}.input-group{background:var(--card);border-radius:var(--radius);border:1px solid var(--border);flex-direction:column;gap:8px;padding:12px;display:flex}.input-group label{color:var(--text-secondary);letter-spacing:1px;font-size:10px;font-weight:700}.dual-input{gap:10px;display:flex}input,select,textarea{border:1px solid var(--border);color:#fff;background:#000;border-radius:8px;outline:none;width:100%;padding:12px;font-size:14px;transition:all .3s}input:focus{border-color:var(--info);box-shadow:0 0 10px #40e0d033}.btn-save{background:linear-gradient(135deg, var(--accent), var(--info));color:#fff;border-radius:var(--radius);cursor:pointer;border:none;margin-top:10px;padding:18px;font-size:16px;font-weight:700;box-shadow:0 5px 15px #0000004d}.preview-box{border-radius:var(--radius);background:#fff;flex-direction:column;gap:10px;height:500px;padding:15px;display:flex}.note-preview{color:#000;resize:none;background:0 0;border:none;height:100%;font-family:serif;font-size:15px;line-height:1.6;overflow-y:auto}.btn-copy{background:var(--accent);color:#fff;border:none;border-radius:8px;padding:12px;font-weight:700}.bottom-nav{border-top:1px solid var(--border);height:75px;padding-bottom:env(safe-area-inset-bottom);z-index:999;background:#161b22;display:flex;position:fixed;bottom:0;left:0;right:0}.bottom-nav button{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;flex:1;font-size:12px;font-weight:700;transition:all .3s}.bottom-nav button.active{color:var(--info);border-top:2px solid var(--info);background:#40e0d00d}.scanning-overlay{z-index:10000;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#061012f2;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.scanning-ui{text-align:center;color:var(--info);width:80%}.scan-laser{background:var(--info);width:100%;height:2px;box-shadow:0 0 20px var(--info);z-index:10001;animation:2s ease-in-out infinite scanLine;position:absolute;top:50%;left:0}@keyframes scanLine{0%{top:20%}50%{top:80%}to{top:20%}}.login-screen{background:var(--bg);place-items:center;padding:20px;display:grid;position:fixed;inset:0}.login-card{background:var(--card);border:1px solid var(--border);text-align:center;border-radius:20px;width:100%;max-width:400px;padding:40px}.cn-logo{background:var(--info);color:#fff;border-radius:20px;place-items:center;width:80px;height:80px;margin:0 auto 20px;font-size:40px;font-weight:900;display:grid;box-shadow:0 0 30px #40e0d04d}.animate-fade{animation:.4s ease-out fadeIn}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}