:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}:root{--bg-color: #f9f9f9;--app-bg-color: #ffffff;--text-color: #333;--header-color: #2c3e50;--primary-color: #007bff;--primary-hover-color: #0056b3;--danger-color: #e74c3c;--danger-hover-color: #c0392b;--border-color: #eee;--light-border-color: #f0f0f0;--shadow-color: rgba(0, 0, 0, .1);--task-bg-color: #fff;--task-text-color: #555;--task-completed-text-color: #aaa;--button-text-color: #fff}:root.theme-dark-blue{--bg-color: #0a192f;--app-bg-color: #172a45;--text-color: #ccd6f6;--header-color: #e6f1ff;--primary-color: #64ffda;--primary-hover-color: #52d6c0;--danger-color: #e74c3c;--danger-hover-color: #c0392b;--border-color: #233554;--light-border-color: #1d2d44;--shadow-color: rgba(0, 0, 0, .2);--task-bg-color: #0a192f;--task-text-color: #a8b2d1;--task-completed-text-color: #8892b0;--button-text-color: #0a192f}:root.theme-pastel{--bg-color: #fef8f8;--app-bg-color: #fff0f0;--text-color: #6a737b;--header-color: #5d6771;--primary-color: #b2e4c7;--primary-hover-color: #9cdcb7;--danger-color: #ff9999;--danger-hover-color: #ff8080;--border-color: #dceada;--light-border-color: #ffeaea;--shadow-color: rgba(255, 192, 203, .15);--task-bg-color: #fff5f5;--task-text-color: #6a737b;--task-completed-text-color: #aeb5bd;--button-text-color: #333333}body{background-color:var(--bg-color);transition:background-color .3s ease}#root{max-width:80vw;margin:0 auto;padding:2rem;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;color:var(--text-color)}.App{background-color:var(--app-bg-color);border-radius:8px;box-shadow:0 4px 8px var(--shadow-color);padding:2rem;position:relative;transition:background-color .3s ease}h1,h2{color:var(--header-color);text-align:center}h2{border-bottom:2px solid var(--border-color);padding-bottom:.5rem;margin-top:2rem}.task-form{display:flex;justify-content:center;margin-bottom:2rem}.task-form input[type=text]{flex-grow:1;max-width:500px;padding:.8rem 1rem;border:1px solid var(--border-color);border-radius:4px;font-size:1rem;margin-right:.5rem;outline:none;background-color:var(--bg-color);color:var(--text-color)}.task-form input[type=text]:focus{border-color:var(--primary-color)}.task-form button{background-color:var(--primary-color);color:var(--button-text-color);border:none;border-radius:4px;padding:.8rem 1.2rem;font-size:1rem;cursor:pointer;transition:background-color .2s ease-in-out}.task-form button:hover{background-color:var(--primary-hover-color)}.task-container{display:grid;grid-template-columns:1fr;gap:2rem}@media(min-width:768px){.task-container{grid-template-columns:1fr;width:700px;margin:0 auto}}.task-section{background-color:var(--task-bg-color);border-radius:6px;padding:1rem 1.5rem;box-shadow:0 2px 4px var(--shadow-color)}.task-list{list-style:none;padding:0;margin-top:1rem}.task-list li{border-bottom:1px solid var(--light-border-color);padding:1rem .5rem;display:flex;align-items:center;justify-content:space-between;font-size:1.1rem;color:var(--task-text-color)}.task-list li:last-child{border-bottom:none}.task-list li.completed span{text-decoration:line-through;color:var(--task-completed-text-color)}.task-list li span{word-break:break-all;margin-right:1rem}.task-actions{display:flex;gap:.5rem;flex-shrink:0}.task-actions button{border:1px solid var(--border-color);background-color:transparent;color:var(--text-color);border-radius:4px;padding:.4rem .8rem;font-size:.9rem;cursor:pointer;transition:background-color .2s,color .2s}.task-actions button:hover{background-color:var(--primary-hover-color);color:var(--button-text-color)}.auth-container{max-width:400px;margin:0 auto;text-align:center;padding:2rem;background:var(--app-bg-color);border-radius:8px;box-shadow:0 4px 12px var(--shadow-color)}.auth-form{display:flex;flex-direction:column;gap:1rem;margin-top:1.5rem}.auth-form input{padding:.8rem;border:1px solid var(--border-color);border-radius:4px;font-size:1rem;background-color:var(--bg-color);color:var(--text-color)}.password-requirement{font-size:.75rem;color:#666;text-align:left;margin:-.5rem 0 .5rem .2rem;line-height:1.2}.auth-buttons{display:flex;gap:1rem;justify-content:center;margin-top:1rem}.auth-buttons button{padding:.8rem 1.5rem;border:none;border-radius:4px;cursor:pointer;font-size:1rem;transition:opacity .2s}.auth-buttons button:first-child{background-color:var(--primary-color);color:var(--button-text-color)}.auth-buttons button:last-child{background-color:var(--border-color);color:var(--text-color)}.auth-buttons button:disabled{opacity:.7;cursor:not-allowed}.auth-message{margin-top:1rem;color:var(--danger-color);font-size:.9rem}.app-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;border-bottom:2px solid var(--border-color);padding-bottom:1rem}.app-header h1{margin:0;font-size:1.5rem;color:var(--header-color)}.logout-btn{position:fixed;top:2rem;right:2rem;background-color:var(--danger-color);color:var(--button-text-color);border:none;padding:.5rem 1rem;border-radius:4px;cursor:pointer;font-size:.9rem;z-index:1000}.logout-btn:hover{background-color:var(--danger-hover-color)}.settings-btn{position:fixed;top:2rem;left:2rem;background-color:var(--app-bg-color);color:var(--text-color);border:none;border-radius:8px;padding:.5rem;font-size:1.5rem;cursor:pointer;z-index:1000;box-shadow:0 2px 5px var(--shadow-color);line-height:1;display:inline-flex;align-items:center;justify-content:center;transition:transform .2s ease}.settings-btn:hover{transform:scale(1.1)}.settings-panel{position:fixed;top:5rem;left:2rem;background-color:var(--app-bg-color);border:1px solid var(--border-color);border-radius:8px;padding:1rem;box-shadow:0 4px 12px var(--shadow-color);z-index:1001;width:200px}.settings-header{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--border-color);padding-bottom:.5rem;margin-bottom:1rem}.settings-header h3{margin:0;font-size:1rem}.settings-header .close-btn{background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--text-color)}.theme-options{display:flex;flex-direction:column;gap:.5rem}.theme-options button{width:100%;padding:.5rem;border:1px solid var(--border-color);background-color:var(--bg-color);color:var(--text-color);cursor:pointer;border-radius:4px}.theme-options button:hover{border-color:var(--primary-color)}@media(max-width:767px){#root{padding:1rem;max-width:95vw}.App{padding:4.5rem 1.5rem 1.5rem}.settings-btn{position:absolute;top:1rem;left:1rem}.logout-btn{position:absolute;top:1rem;right:1rem}.task-list li{flex-direction:column;align-items:flex-start;gap:.75rem;font-size:1rem}.task-actions{width:100%;justify-content:flex-end}}