:root{--bg-primary:#f8fafb;--bg-surface:#fff;--text-primary:#1a1a1a;--text-secondary:#666;--accent:#607afb;--accent-text:#4c5fd5;--border:#e0e0e0;--hover:#f5f5f5;--completed-bg:#eef1ff;--completed-text:#4c5fd5;--transition-speed:.3s;--font-family:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif}html.dark{--bg-primary:#121212;--bg-surface:#1e1e1e;--text-primary:#e0e0e0;--text-secondary:#999;--accent:#7b93ff;--accent-text:#8fa5ff;--border:#333;--hover:#2a2a2a;--completed-bg:#607afb26;--completed-text:#8fa5ff}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--bg-primary);color:var(--text-primary);transition:background-color var(--transition-speed) ease, color var(--transition-speed) ease}.app{background-color:var(--bg-primary);min-height:100vh;transition:background-color var(--transition-speed) ease}.header{background-color:var(--bg-surface);border-bottom:1px solid var(--border);padding:calc(24px + 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var(--transition-speed) ease;font-size:32px;font-weight:700}.date-display{color:var(--accent-text);font-size:16px;font-weight:500}.task-input-container{margin-bottom:24px}.task-input{border:1px solid var(--border);background-color:var(--bg-surface);width:100%;color:var(--text-primary);font-size:16px;font-family:var(--font-family);border-radius:12px;padding:16px 20px;transition:all .3s cubic-bezier(.4,0,.2,1)}.task-input:focus{border:1px solid var(--border);background-color:var(--bg-primary);outline:none;transform:scale(1.01);box-shadow:0 8px 24px #607afb1f,0 4px 8px #0000000f}.task-input::placeholder{color:var(--text-secondary)}.task-stats{opacity:0;justify-content:space-between;align-items:center;margin-bottom:24px;transition:opacity .3s;display:flex}.task-stats.visible{opacity:1}.task-count{color:var(--text-secondary);font-size:14px;font-weight:500}.clear-completed{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:4px;padding:4px 8px;font-size:14px;transition:all .2s}.clear-completed:hover{color:var(--accent);background-color:var(--hover)}.task-list{min-height:400px;position:relative}.task-items{flex-direction:column;gap:12px;margin:0;padding:0;list-style:none;display:flex;position:relative}.task-item{background-color:var(--bg-surface);border:1px solid var(--border);cursor:grab;border-radius:12px;align-items:flex-start;gap:16px;padding:16px 20px;transition:all .3s;display:flex;position:relative}.task-item:active{cursor:grabbing}.task-item.dragging{cursor:grabbing;z-index:20;border-color:var(--accent);touch-action:none;-webkit-user-select:none;user-select:none;box-shadow:0 12px 28px #0000002e,0 4px 8px #0000001a}html.dark .task-item.dragging{box-shadow:0 12px 28px #00000080,0 4px 8px #00000059}.task-item.settling{z-index:20;transition:transform .24s cubic-bezier(.2,0,0,1),box-shadow .24s,border-color .24s}.task-item:hover{background-color:var(--hover);transform:translateY(-2px);box-shadow:0 4px 12px 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