:root{--bg-color: #0f172a;--sidebar-bg: rgba(30, 41, 59, .7);--editor-bg: rgba(15, 23, 42, .5);--text-primary: #f8fafc;--text-secondary: #94a3b8;--accent-color: #38bdf8;--accent-hover: #0ea5e9;--danger-color: #ef4444;--border-color: rgba(148, 163, 184, .1);--glass-border: 1px solid rgba(255, 255, 255, .05);--font-sans: "Inter", system-ui, -apple-system, sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-color);color:var(--text-primary);height:100vh;overflow:hidden;background-image:radial-gradient(circle at 10% 20%,rgba(56,189,248,.1) 0%,transparent 20%),radial-gradient(circle at 90% 80%,rgba(139,92,246,.1) 0%,transparent 20%)}#app{display:flex;height:100vh;width:100vw}.sidebar{width:300px;background:var(--sidebar-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-right:var(--glass-border);display:flex;flex-direction:column;padding:1.5rem;transition:transform .3s ease}.app-header{margin-bottom:2rem}.app-title{font-size:1.5rem;font-weight:700;background:linear-gradient(to right,#38bdf8,#818cf8);background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:.5rem;letter-spacing:-.025em}.controls{display:flex;gap:.5rem}.btn{background:#ffffff0d;border:var(--glass-border);color:var(--text-secondary);padding:.5rem 1rem;border-radius:6px;cursor:pointer;font-size:.875rem;transition:all .2s ease;display:flex;align-items:center;gap:.5rem}.btn:hover{background:#ffffff1a;color:var(--text-primary)}.btn-primary{background:var(--accent-color);color:#0f172a;font-weight:600;border:none}.btn-primary:hover{background:var(--accent-hover)}.note-list{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:.5rem}.note-item{padding:1rem;border-radius:8px;background:#ffffff05;border:var(--glass-border);cursor:pointer;transition:all .2s ease}.note-item:hover{background:#ffffff0d;transform:translateY(-2px);box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f}.note-item.active{background:#38bdf81a;border-color:#38bdf84d}.note-item-title{font-weight:600;margin-bottom:.25rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.note-item-date{font-size:.75rem;color:var(--text-secondary)}.app-footer{margin-top:auto;padding-top:1rem;font-size:.75rem;color:var(--text-secondary);text-align:center;border-top:var(--glass-border)}.app-footer a{color:var(--accent-color);text-decoration:none;font-weight:600}.app-footer a:hover{text-decoration:underline}.main{flex:1;display:flex;flex-direction:column;background:var(--editor-bg);position:relative}.editor-header{padding:1.5rem 2rem;border-bottom:var(--glass-border);display:flex;justify-content:space-between;align-items:center}.note-title-input{background:transparent;border:none;font-size:2rem;font-weight:700;color:var(--text-primary);width:100%;outline:none}.note-title-input::placeholder{color:#fff3}.editor-actions{display:flex;gap:1rem}.btn-danger{color:var(--danger-color)}.btn-danger:hover{background:#ef44441a}.editor-content{flex:1;padding:2rem;overflow-y:auto}.note-body-textarea{width:100%;height:100%;background:transparent;border:none;color:var(--text-primary);font-size:1.125rem;line-height:1.6;resize:none;outline:none;font-family:var(--font-sans)}.note-body-textarea::placeholder{color:#fff3}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:var(--text-secondary);text-align:center}.empty-state h2{font-size:1.5rem;margin-bottom:1rem;color:var(--text-primary)}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#fff3}.hidden{display:none!important}.hidden-desktop{display:none}.sidebar-overlay{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:#00000080;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:15;opacity:0;transition:opacity .3s ease}.sidebar-overlay.open{display:block;opacity:1}@media(max-width:768px){.hidden-desktop{display:flex}.sidebar{position:absolute;height:100%;z-index:20;transform:translate(-100%);width:85%;max-width:320px;box-shadow:10px 0 30px #00000080}.sidebar.open{transform:translate(0)}.menu-toggle{position:absolute;top:1rem;left:1rem;z-index:10;background:#ffffff1a;border:none;color:var(--text-primary);padding:.5rem;border-radius:8px;cursor:pointer}.main{padding-top:3.5rem}.editor-header{padding:1rem;gap:.5rem}.note-title-input{font-size:1.5rem}.btn-icon{padding:.5rem;background:transparent;border:none;color:var(--text-secondary)}.empty-state{padding:2rem}}