*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{color:#2d3748;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);min-height:100vh;padding:40px 20px;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.6}#root{text-align:left;border:none;width:100%;max-width:100%;min-height:auto;margin:0;display:block}header{text-align:center;margin-bottom:40px}.home-link{color:#fff;text-shadow:0 2px 4px #0000001a;margin-bottom:16px;font-size:.95rem;font-weight:600;text-decoration:none;display:inline-block}.home-link:hover{text-decoration:underline}.header-note{color:#fffc;margin-top:8px;font-size:1rem}header h1{color:#fff;letter-spacing:-.02em;text-shadow:0 4px 12px #00000026;margin-bottom:8px;font-size:3rem;font-weight:700}header h1:after{content:"";background:#ffffff4d;border-radius:2px;width:60px;height:4px;margin:16px auto;display:block}main{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#fffffff2;border:1px solid #fff3;border-radius:24px;max-width:680px;margin:0 auto;overflow:hidden;box-shadow:0 25px 50px #00000026}.todo-input-section{-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);background:#ffffff1a;border-bottom:1px solid #ffffff1a;padding:40px}.todo-form .input-group{gap:16px;margin-bottom:16px;display:flex}.todo-form input[type=text]{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:#2d3748;background:#ffffffe6;border:2px solid #fff3;border-radius:16px;flex:1;padding:16px 20px;font-size:16px;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:0 8px 32px #0000001a}.todo-form input[type=text]::placeholder{color:#a0aec0}.todo-form input[type=text]:focus{border-color:#fff9;outline:none;transform:translateY(-2px);box-shadow:0 8px 32px #00000026,0 0 0 3px #ffffff1a}.add-btn{color:#fff;cursor:pointer;letter-spacing:.5px;background:linear-gradient(135deg,#4facfe 0%,#00f2fe 100%);border:none;border-radius:16px;padding:16px 32px;font-size:16px;font-weight:600;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:0 8px 32px #4facfe4d}.add-btn:hover{transform:translateY(-3px);box-shadow:0 12px 40px #4facfe66}.add-btn:active{transform:translateY(-1px)}.error-message{color:#ff6b6b;margin-top:5px;font-size:14px}.todo-filters{background:#f8fafc;border-bottom:1px solid #e2e8f0;flex-wrap:wrap;justify-content:center;gap:12px;padding:24px 40px;display:flex}.todo-filters button{color:#64748b;cursor:pointer;background:#fff;border:2px solid #e2e8f0;border-radius:12px;padding:10px 18px;font-size:14px;font-weight:600;transition:all .2s}.todo-filters button:hover{color:#6366f1;border-color:#6366f1}.todo-filters button.active{color:#fff;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);border-color:#0000}.todo-list{min-height:240px;padding:8px;list-style:none}.todo-item{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#ffffffe6;border:1px solid #e2e8f080;border-radius:16px;align-items:center;margin:8px 0;padding:20px 24px;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex;box-shadow:0 4px 12px #0000000d}.todo-item:hover{background:#fff;transform:translateY(-2px);box-shadow:0 8px 25px #0000001a}.todo-item.completed{opacity:.7;background:#f8fafce6}.todo-item.completed .todo-text{color:#94a3b8;text-decoration:line-through}.todo-checkbox{cursor:pointer;accent-color:#6366f1;width:24px;height:24px;margin-right:20px;transform:scale(1.2)}.todo-text{color:#334155;flex:1;font-size:16px;font-weight:500;line-height:1.5}.todo-actions{gap:12px;display:flex}.delete-btn{cursor:pointer;letter-spacing:.025em;color:#fff;background:linear-gradient(135deg,#ef4444 0%,#dc2626 100%);border:none;border-radius:10px;padding:8px 16px;font-size:13px;font-weight:600;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:0 4px 12px #ef44444d}.delete-btn:hover{transform:translateY(-2px);box-shadow:0 6px 16px #ef444466}.empty-state{text-align:center;color:#64748b;padding:40px 20px;font-style:italic}@media (width<=768px){body{padding:10px}header h1{font-size:2rem}.todo-form .input-group{flex-direction:column}.add-btn{width:100%}.todo-filters{padding:20px}.todo-item{padding:12px 15px}.todo-actions{flex-direction:column;gap:5px}}