:root{--bg:#f4f5f7;--panel:#fff;--panel-2:#f0f1f4;--text:#1b1d22;--muted:#6d7280;--border:#e2e4e9;--accent:#4f46e5;--accent-soft:#4f46e51f;--danger:#dc2626;--shadow:0 10px 30px #0f121914}[data-theme=dark]{--bg:#0e1015;--panel:#171a21;--panel-2:#1e222b;--text:#e8eaf0;--muted:#8b90a0;--border:#272b35;--accent:#7c7cf8;--accent-soft:#7c7cf829;--danger:#f87171;--shadow:0 10px 30px #0006}*{box-sizing:border-box}body{background:radial-gradient(900px 500px at 15% -10%, var(--accent-soft), transparent 60%), var(--bg);min-height:100vh;color:var(--text);margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif;transition:background-color .25s,color .25s}button,input{font:inherit;color:inherit}kbd{background:var(--panel-2);border:1px solid var(--border);border-radius:4px;padding:0 5px;font-size:.8em}.app{max-width:640px;margin:0 auto;padding:48px 20px 96px}.header{justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:24px;display:flex}h1{letter-spacing:-.02em;margin:0;font-size:32px}.subtitle{color:var(--muted);margin:6px 0 0;font-size:13px}.theme-btn{border:1px solid var(--border);background:var(--panel);cursor:pointer;border-radius:12px;width:40px;height:40px;font-size:18px;transition:transform .15s,background .2s}.theme-btn:hover{background:var(--panel-2);transform:rotate(-12deg)}.todo-form{background:var(--panel);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:14px;gap:8px;padding:8px;display:flex}.todo-input{background:0 0;border:none;outline:none;flex:1;min-width:0;padding:10px 12px}.date-input,.search-input,.edit-input{border:1px solid var(--border);background:var(--panel-2);border-radius:10px;outline:none;padding:8px 10px}.date-input{color:var(--muted);font-size:13px}.search-input{background:var(--panel);width:100%;margin:18px 0 12px;padding:11px 14px}.search-input:focus,.date-input:focus{border-color:var(--accent)}.add-btn{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:10px;padding:0 18px;font-weight:600;transition:opacity .2s,transform .1s}.add-btn:disabled{opacity:.4;cursor:not-allowed}.add-btn:not(:disabled):active{transform:scale(.96)}.priority-chip{border:1px solid var(--border);background:var(--panel-2);text-transform:capitalize;cursor:pointer;border-radius:10px;padding:0 12px;font-size:12px}.priority-chip.priority-low{color:#22a06b}.priority-chip.priority-medium{color:#d99425}.priority-chip.priority-high{color:var(--danger)}.priority-dot{border-radius:50%;flex:none;width:8px;height:8px}.priority-dot.priority-low{background:#22a06b}.priority-dot.priority-medium{background:#d99425}.priority-dot.priority-high{background:#e5484d}.progress{margin-top:22px}.progress-track{background:var(--panel-2);border-radius:99px;height:6px;overflow:hidden}.progress-fill{background:linear-gradient(90deg, var(--accent), #22d3ee);border-radius:99px;height:100%;transition:width .35s cubic-bezier(.22,1,.36,1)}.progress-label{color:var(--muted);margin-top:8px;font-size:12px;display:block}.filter-bar{justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px;display:flex}.filters{background:var(--panel);border:1px solid var(--border);border-radius:10px;gap:4px;padding:4px;display:flex}.filter-btn{text-transform:capitalize;color:var(--muted);cursor:pointer;background:0 0;border:none;border-radius:7px;padding:6px 14px;font-size:13px}.filter-btn.active{background:var(--accent-soft);color:var(--accent);font-weight:600}.clear-btn{color:var(--muted);cursor:pointer;background:0 0;border:none;font-size:13px}.clear-btn:disabled{opacity:.4;cursor:not-allowed}.clear-btn:not(:disabled):hover{color:var(--danger)}.todo-list{flex-direction:column;gap:8px;margin:0;padding:0;list-style:none;display:flex}.todo-item{background:var(--panel);border:1px solid var(--border);border-radius:12px;align-items:center;gap:12px;padding:12px 14px;animation:.2s slide-in;display:flex}.todo-item.draggable{cursor:grab}.todo-item.dragging{opacity:.4;border-style:dashed}.todo-item:hover{border-color:var(--accent)}@keyframes slide-in{0%{opacity:0;transform:translateY(-6px)}}.checkbox{cursor:pointer;display:flex}.checkbox input{display:none}.checkmark{border:2px solid var(--border);border-radius:50%;width:20px;height:20px;transition:background .15s,border-color .15s}.checkbox input:checked+.checkmark{background:var(--accent);border-color:var(--accent);box-shadow:inset 0 0 0 3px var(--panel)}.todo-text{word-break:break-word;flex:1}.todo-item.done .todo-text{color:var(--muted);text-decoration:line-through}.edit-input{flex:1}.due-badge{color:var(--muted);background:var(--panel-2);white-space:nowrap;border-radius:6px;padding:3px 7px;font-size:11px}.due-badge.overdue{color:var(--danger);background:#e5484d1f}.icon-btn{color:var(--muted);cursor:pointer;background:0 0;border:none;padding:0 4px;font-size:20px;line-height:1}.icon-btn:hover{color:var(--danger)}.empty{text-align:center;color:var(--muted);padding:32px 0;font-size:14px}.toast{background:var(--panel);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:12px;align-items:center;gap:16px;padding:12px 18px;font-size:14px;animation:.2s rise;display:flex;position:fixed;bottom:28px;left:50%;transform:translate(-50%)}.toast button{color:var(--accent);cursor:pointer;background:0 0;border:none;font-weight:600}@keyframes rise{0%{opacity:0;transform:translate(-50%,12px)}}@media (width<=560px){.todo-form{flex-wrap:wrap}.todo-input{flex-basis:100%}.filter-bar{flex-direction:column;align-items:stretch}}