.light-theme{--bg-color: #f8f9fa;--card-bg: #ffffff;--text-primary: #2d3436;--text-secondary: #636e72;--border-color: #dfe6e9;--input-bg: #ffffff;--shadow-sm: 0 2px 4px rgba(0, 0, 0, .05);--shadow-md: 0 8px 16px rgba(0, 0, 0, .1)}.dark-theme{--bg-color: #0f0f0f;--card-bg: #1a1a1a;--text-primary: #f5f6fa;--text-secondary: #a2a8d3;--border-color: #2d2d2d;--input-bg: #252525;--shadow-sm: 0 4px 8px rgba(0, 0, 0, .3);--shadow-md: 0 12px 24px rgba(0, 0, 0, .5)}:root{--primary-color: #8719f3;--success: #00b894;--danger: #ff7675;--warning: #ff9f43;--radius: 16px;--radius-pill: 50px;--transition: all .3s cubic-bezier(.4, 0, .2, 1)}*{box-sizing:border-box;margin:0;padding:0}body{transition:background .3s ease;background-color:var(--bg-color);color:var(--text-primary);font-family:Inter,sans-serif;overflow-x:hidden}.app{display:flex;flex-direction:column;align-items:center;padding:20px;min-height:100vh;width:100%}.main-header{width:100%;max-width:800px;background:var(--card-bg);padding:20px 30px;border-radius:var(--radius);display:flex;align-items:center;justify-content:space-between;box-shadow:var(--shadow-sm);margin-bottom:30px;border:1px solid var(--border-color);gap:15px}.header-left,.header-right{flex:1;display:flex}.header-center{flex:2;text-align:center}.header-right{justify-content:flex-end}.header-center h1{font-size:clamp(1.1rem,4vw,1.7rem);color:var(--primary-color);font-weight:800;white-space:nowrap}.user-block{display:flex;flex-direction:column;align-items:flex-end;gap:4px}.welcome-msg{font-size:.75rem;font-weight:500;max-width:150px;overflow:hidden;text-overflow:ellipsis}.theme-toggle{background:var(--input-bg);border:2px solid var(--border-color);font-size:1.1rem;padding:6px;border-radius:var(--radius-pill);cursor:pointer}.logout-btn{background:transparent;color:var(--danger);border:2px solid var(--danger);padding:3px 12px;border-radius:var(--radius-pill);font-size:.65rem;font-weight:800;text-transform:uppercase;cursor:pointer}.search-container,.todo-list-container,.todo-form{width:100%;max-width:650px}.search-input{width:100%;padding:16px;border:3px solid var(--border-color);border-radius:var(--radius);background:var(--input-bg);color:var(--text-primary);font-size:1rem;margin-bottom:25px;transition:var(--transition)}.search-input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 4px 12px #8719f31a}.todo-form{display:flex;flex-direction:column;gap:12px;padding:20px;background:var(--card-bg);border-radius:var(--radius);border:1px solid var(--border-color);margin-bottom:40px}.form-main{display:flex;gap:10px}.form-main input{flex:3;padding:12px;border-radius:10px;border:2px solid var(--border-color);background:var(--input-bg);color:var(--text-primary)}.form-main select{flex:1;padding:12px;border-radius:10px;border:2px solid var(--border-color);background:var(--input-bg);color:var(--text-primary)}.form-main button{background:var(--success);color:#fff;border:none;padding:12px 20px;border-radius:10px;font-weight:700;cursor:pointer}.input-desc{width:100%;padding:12px;border-radius:10px;border:2px solid var(--border-color);background:var(--input-bg);color:var(--text-primary);font-family:inherit;resize:none;height:70px}.filter-controls{display:flex;gap:8px;margin-bottom:25px;flex-wrap:wrap;justify-content:center}.filter-controls button,.filter-controls select{padding:8px 14px;border-radius:var(--radius-pill);border:2px solid var(--border-color);background:var(--card-bg);color:var(--text-primary);font-weight:700;font-size:.8rem;cursor:pointer}.todo-list{list-style:none;width:100%}.todo-item{background:var(--card-bg);padding:15px 20px;margin-bottom:12px;border-radius:var(--radius);display:flex;flex-direction:column;border-left:6px solid var(--primary-color);border-top:1px solid var(--border-color);border-right:1px solid var(--border-color);border-bottom:1px solid var(--border-color);box-shadow:var(--shadow-sm);transition:var(--transition)}.item-main-row{display:flex;justify-content:space-between;align-items:center;gap:10px}.todo-content{display:flex;flex-direction:column;gap:6px;overflow:hidden}.todo-text{font-weight:600;font-size:1rem;word-break:break-word}.description-expand{margin-top:12px;padding-top:12px;border-top:1px dashed var(--border-color)}.description-expand textarea{width:100%;min-height:80px;background:var(--bg-color);border:1px solid var(--border-color);border-radius:8px;padding:10px;color:var(--text-primary);font-family:inherit}.badge{font-size:.6rem;font-weight:800;padding:3px 10px;border-radius:6px;text-transform:uppercase;width:fit-content}.pessoal{background:#0984e326;color:#0984e3}.urgente{background:#d6303126;color:#d63031}.estudos{background:#8719f326;color:#8719f3}.trabalho{background:#ff9f4333;color:#ff9f43}.hobbies{background:#00b89426;color:#00b894}.todo-actions{display:flex;gap:6px;flex-shrink:0}.todo-actions button{background:var(--input-bg);border:1px solid var(--border-color);padding:8px;border-radius:10px;cursor:pointer;font-size:.9rem}.completed{opacity:.5}.completed .todo-text{text-decoration:line-through}@media(max-width:600px){.main-header{flex-direction:column;padding:15px;gap:10px}.header-left,.header-right{width:100%;justify-content:center}.header-right{order:3}.header-center{order:1}.header-left{order:2}.user-block{align-items:center;text-align:center}.welcome-msg{max-width:250px}.form-main{flex-direction:column}.form-main input,.form-main select,.form-main button{width:100%;flex:none}.item-main-row{flex-direction:column;align-items:flex-start}.todo-actions{width:100%;justify-content:flex-end;margin-top:10px}.todo-item{padding:15px}}footer{margin:30px 0;color:var(--text-secondary);font-size:.8rem;text-align:center}.auth-container{display:flex;justify-content:center;align-items:center;padding-top:50px;width:100%}.auth-form{background:var(--card-bg);padding:30px;border-radius:var(--radius);border:1px solid var(--border-color);box-shadow:var(--shadow-md);width:100%;max-width:400px;text-align:center}.auth-form h2{color:var(--primary-color);margin-bottom:20px;font-weight:800}.auth-form input{width:100%;padding:12px;margin-bottom:15px;border-radius:10px;border:2px solid var(--border-color);background:var(--input-bg);color:var(--text-primary);font-size:1rem}.auth-btn{width:100%;padding:14px;background:var(--primary-color);color:#fff;border:none;border-radius:10px;font-weight:700;cursor:pointer;transition:var(--transition)}.auth-btn:hover{opacity:.9;transform:translateY(-2px)}.toggle-auth{margin-top:20px;font-size:.85rem;color:var(--text-secondary);cursor:pointer;text-decoration:underline}.social-links{display:flex;justify-content:center;gap:20px;margin-bottom:10px}.social-links a{font-size:1.5rem;color:var(--text-secondary);transition:var(--transition)}.social-links a:hover{color:var(--primary-color);transform:translateY(-3px)}.social-links a:hover .fa-linkedin{color:#0077b5}.social-links a:hover .fa-github{color:#8719f3}.error-message{color:var(--danger);background-color:#ff76751a;padding:10px;border-radius:8px;font-size:.85rem;font-weight:600;margin-bottom:15px;border:1px solid var(--danger)}