body.light{--bg-color: #f4f6f9;--card-color: #ffffff;--text-color: #222;--btn-color: #bd4edf}body.dark{--bg-color: #1e1e2f;--card-color: #2c2c3e;--text-color: #ffffff;--btn-color: #1cc88a}body{background:var(--bg-color);font-family:Arial,sans-serif;display:flex;justify-content:center;padding:20px;transition:all .3s ease}.app-container{background:var(--card-color);color:var(--text-color);padding:25px;width:100%;max-width:700px;margin:auto;border-radius:12px;box-shadow:0 10px 30px #00000026;display:grid;grid-template-columns:1fr;gap:20px}.header{display:flex;justify-content:space-between;align-items:center}.theme-toggle{padding:6px 12px;border:none;background:var(--btn-color);color:#fff;border-radius:6px;cursor:pointer;transition:.3s}.theme-toggle:hover{opacity:.8}.todo-form{display:grid;grid-template-columns:2fr 1fr 1fr auto;gap:10px}.todo-form input,.todo-form select,.todo-form button{padding:8px;border-radius:6px;border:1px solid #ccc}.todo-form input[type=text]{flex:2 1 200px}.todo-form input[type=date],.todo-form select{flex:1 1 120px}.todo-form button{flex:1 1 100%}.todo-form input{flex:1;padding:8px;border-radius:6px;border:1px solid #ccc}.todo-form button{background:linear-gradient(135deg,#b64edf,#ce63ff);color:#fff}.todo-form button:hover{transform:translateY(-3px);box-shadow:0 8px 18px #4e73df66}.todo-list{margin-top:20px}.todo-item{display:flex;justify-content:space-between;align-items:center;background:var(--bg-color);padding:8px;border-radius:6px;margin-bottom:10px}.todo-item span{cursor:pointer}.action-buttons{display:flex;gap:10px;align-items:center}.edit-btn{background:#f6c23e;color:#222}.edit-btn:hover{background:#e0a800;transform:scale(1.08)}.delete-btn{background:#e74a3b;color:#fff}.delete-btn:hover{background:#c82333;transform:scale(1.08);box-shadow:0 5px 12px #e74a3b66}.save-btn{background:#1cc88a;color:#fff}.save-btn:hover{background:#17a673;transform:translateY(-2px);box-shadow:0 5px 12px #1cc88a66}.completed{text-decoration:line-through;opacity:.6}button{padding:8px 14px;border-radius:8px;border:none;cursor:pointer;font-weight:600;transition:all .3s ease}button:active{transform:scale(.95)}.dashboard{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:15px}.stat-card{background:linear-gradient(135deg,var(--btn-color),#6c63ff);color:#fff;padding:20px;border-radius:15px;text-align:center;box-shadow:0 10px 25px #00000026;transition:transform .3s ease}.stat-card:hover{transform:translateY(-8px)}.stat-card h4{font-size:14px;margin-bottom:8px}.stat-card p{font-size:22px;font-weight:700}.progress-wrapper{grid-column:span 3;background:#ddd;height:25px;border-radius:20px;overflow:hidden;margin-top:10px}.progress-fill{height:100%;background:linear-gradient(90deg,#00c6ff,#0072ff);color:#fff;text-align:center;line-height:25px;font-size:13px;font-weight:700}.controls{margin-top:20px}.search-input{width:100%;padding:8px;border-radius:8px;border:1px solid #ccc;margin-bottom:10px}.active-filter{background-color:#4caf50;color:#fff}.filter-buttons{display:grid;grid-template-columns:repeat(auto-fit,minmax(100px,1fr));gap:8px}.filter-buttons button{flex:1 1 30%;margin:0 5px;background:var(--btn-color);color:#fff}.filter-buttons button:hover{transform:translateY(-2px)}.priority{padding:4px 8px;border-radius:12px;font-size:12px;color:#fff}.priority.Low{background:green}.priority.Medium{background:orange}.priority.High{background:red}.due-date{font-size:12px;color:gray}@media(max-width:480px){.app-container{padding:18px;border-radius:10px}h1{font-size:22px}.dashboard{grid-template-columns:1fr}.todo-item{flex-direction:column;align-items:flex-start;gap:8px}.action-buttons{width:100%;justify-content:space-between}}@media(max-width:600px){.todo-form{grid-template-columns:1fr}}@media(min-width:768px){.app-container{grid-template-columns:2fr 1fr}.controls,.todo-form,.todo-list{grid-column:1 / 2}.dashboard{grid-column:2 / 3}}