*,*:before,*:after{box-sizing:border-box}:root{--bg: #f5f5f5;--surface: #ffffff;--text: #1a1a1a;--text-secondary: #666666;--border: #e0e0e0;--primary: #2563eb;--primary-hover: #1d4ed8;--success: #16a34a;--danger: #dc2626;--radius: 8px;--shadow: 0 1px 3px rgba(0, 0, 0, .1);--completed-bg: #fafafa;--danger-hover-bg: #fef2f2;--op-create-bg: #dcfce7;--op-create-text: #166534;--op-set-bg: #dbeafe;--op-set-text: #1e40af;--op-delete-bg: #fee2e2;--op-delete-text: #991b1b}@media(prefers-color-scheme:dark){:root{--bg: #121212;--surface: #1e1e1e;--text: #e0e0e0;--text-secondary: #a0a0a0;--border: #333333;--primary: #3b82f6;--primary-hover: #60a5fa;--success: #22c55e;--danger: #ef4444;--shadow: 0 1px 3px rgba(0, 0, 0, .3);--completed-bg: #262626;--danger-hover-bg: #3b1c1c;--op-create-bg: #14532d;--op-create-text: #86efac;--op-set-bg: #1e3a5f;--op-set-text: #93c5fd;--op-delete-bg: #450a0a;--op-delete-text: #fca5a5}}body{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;background:var(--bg);color:var(--text);line-height:1.5;min-height:100vh}#app{max-width:600px;margin:0 auto;padding:20px}header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}h1{margin:0;font-size:24px;font-weight:600;white-space:nowrap;flex-shrink:0}h1 a.home-link{text-decoration:none;color:inherit}h1 a.home-link:hover{color:var(--primary)}#nav-links{display:flex;gap:4px;background:var(--surface);padding:4px;border-radius:var(--radius);box-shadow:var(--shadow)}.nav-link{padding:6px 12px;text-decoration:none;color:var(--text-secondary);border-radius:calc(var(--radius) - 2px);font-size:14px;font-weight:500;transition:all .2s}.nav-link:hover{color:var(--text);background:var(--bg)}.nav-link.active{background:var(--primary);color:#fff}.hidden{display:none!important}.header-status{display:flex;flex-direction:column;align-items:flex-end;gap:4px;flex-shrink:0}.sync-status{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--text-secondary);padding:6px 12px;background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);white-space:nowrap}.sync-icon{font-size:10px}.sync-synced .sync-icon{color:var(--success)}.sync-syncing .sync-icon{animation:spin 1s linear infinite}.sync-pending .sync-icon{color:#f59e0b}.sync-offline .sync-icon{color:var(--text-secondary)}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.quota-status{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--text-secondary);padding:6px 10px;background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow)}.quota-bar{width:50px;height:6px;background:var(--border);border-radius:3px;overflow:hidden}.quota-fill{height:100%;background:var(--success);border-radius:3px;transition:width .3s,background .3s}.quota-warning .quota-fill{background:#f59e0b}.quota-exceeded .quota-fill{background:var(--danger)}.quota-text{white-space:nowrap}.quota-banner{background:linear-gradient(135deg,#fef3c7,#fde68a);border:1px solid #f59e0b;border-radius:var(--radius);padding:16px;margin-bottom:16px;text-align:center}@media(prefers-color-scheme:dark){.quota-banner{background:linear-gradient(135deg,#451a03,#78350f);border-color:#b45309}}.quota-banner-content strong{display:block;font-size:16px;margin-bottom:8px;color:#92400e}@media(prefers-color-scheme:dark){.quota-banner-content strong{color:#fbbf24}}.quota-banner-content p{margin:0 0 12px;font-size:14px;color:#a16207}@media(prefers-color-scheme:dark){.quota-banner-content p{color:#fcd34d}}.upgrade-link{display:inline-block;padding:8px 16px;background:var(--primary);color:#fff;text-decoration:none;border-radius:var(--radius);font-weight:500;font-size:14px;transition:background .2s}.upgrade-link:hover{background:var(--primary-hover)}.todo-form.quota-exceeded input,.todo-form.quota-exceeded textarea{opacity:.6;pointer-events:none}.todo-form.quota-exceeded button[type=submit]{opacity:.6;pointer-events:none;cursor:not-allowed}.list-title-container{display:flex;align-items:center;gap:12px;margin-bottom:16px;flex-wrap:wrap}.list-title-display{margin:0;font-size:24px;font-weight:600;flex:1;min-width:0;word-break:break-word}.edit-title-btn{background:none;border:none;color:var(--text-secondary);cursor:pointer;padding:4px 8px;border-radius:4px;font-size:14px;transition:all .2s;flex-shrink:0}.edit-title-btn:hover{background:#f0f9ff;color:var(--primary)}.list-title-container.editing .list-title-display,.list-title-container.editing .edit-title-btn{display:none}.list-title-edit{display:none;flex:1;gap:8px;align-items:center}.list-title-container.editing .list-title-edit{display:flex}.list-title-input{flex:1;padding:8px 12px;border:1px solid var(--border);border-radius:var(--radius);font-size:18px;font-family:inherit;font-weight:600;background:var(--surface);color:var(--text)}.list-title-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #2563eb1a}.save-title-btn,.cancel-title-btn{padding:8px 16px;border:none;border-radius:var(--radius);font-size:14px;cursor:pointer;flex-shrink:0}.save-title-btn{background:var(--primary);color:#fff}.save-title-btn:hover{background:var(--primary-hover)}.cancel-title-btn{background:var(--border);color:var(--text)}.list-history-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.list-history-header h2{margin:0;font-size:24px;font-weight:600}.new-list-btn-small{padding:10px 20px;background:var(--primary);color:#fff;border:none;border-radius:var(--radius);font-size:14px;font-weight:500;cursor:pointer;transition:background .2s}.new-list-btn-small:hover{background:var(--primary-hover)}.list-history{display:flex;flex-direction:column;gap:8px}.list-history-item{display:flex;align-items:center;padding:16px;background:var(--bg);border-radius:var(--radius);text-decoration:none;color:inherit;transition:all .2s;border:1px solid transparent}.list-history-item:hover{background:var(--surface);border-color:var(--border);box-shadow:var(--shadow)}.list-history-item-content{flex:1;min-width:0}.list-history-item-title{font-weight:500;margin:0 0 4px;word-break:break-word}.list-history-item-meta{font-size:12px;color:var(--text-secondary);margin:0}.list-history-item-arrow{color:var(--text-secondary);font-size:18px;flex-shrink:0;margin-left:12px}.todo-form{background:var(--surface);padding:16px;border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:24px}.todo-form input,.todo-form textarea{width:100%;padding:12px;border:1px solid var(--border);border-radius:var(--radius);font-size:16px;font-family:inherit;margin-bottom:12px;resize:vertical;background:var(--surface);color:var(--text)}.todo-form input:focus,.todo-form textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #2563eb1a}.todo-form button{width:100%;padding:12px;background:var(--primary);color:#fff;border:none;border-radius:var(--radius);font-size:16px;font-weight:500;cursor:pointer;transition:background .2s}.todo-form button:hover{background:var(--primary-hover)}.todos-container{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}.todos-list{list-style:none;padding:0;margin:0}.empty-state{padding:40px 20px;text-align:center;color:var(--text-secondary);margin:0}.empty-state.hidden{display:none}.todo-item{display:flex;align-items:flex-start;padding:16px;border-bottom:1px solid var(--border);gap:12px}.todo-item:last-child{border-bottom:none}.todo-item.completed{background:var(--completed-bg)}.todo-item.completed .todo-title{text-decoration:line-through;color:var(--text-secondary)}.todo-checkbox{width:22px;height:22px;border:2px solid var(--border);border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:all .2s;margin-top:2px}.todo-checkbox:hover{border-color:var(--primary)}.todo-item.completed .todo-checkbox{background:var(--success);border-color:var(--success);color:#fff}.todo-checkbox:after{content:""}.todo-item.completed .todo-checkbox:after{content:"✓";font-size:12px}.todo-body{flex:1;min-width:0}.todo-title{font-weight:500;margin:0 0 4px;word-break:break-word}.todo-content{margin:0;font-size:14px;color:var(--text-secondary);white-space:pre-wrap;word-break:break-word}.todo-content:empty{display:none}.todo-actions{display:flex;gap:8px;flex-shrink:0}.todo-edit,.todo-delete{background:none;border:none;color:var(--text-secondary);cursor:pointer;padding:4px 8px;border-radius:4px;font-size:14px;transition:all .2s}.todo-edit:hover{background:#f0f9ff;color:var(--primary)}.todo-delete:hover{background:var(--danger-hover-bg);color:var(--danger)}.todo-item.editing .todo-body{display:none}.todo-item .edit-form{display:none;flex:1}.todo-item.editing .edit-form{display:block}.edit-form input,.edit-form textarea{width:100%;padding:8px;border:1px solid var(--border);border-radius:4px;font-size:14px;font-family:inherit;margin-bottom:8px;background:var(--surface);color:var(--text)}.edit-form .edit-actions{display:flex;gap:8px}.edit-form button{padding:6px 12px;border:none;border-radius:4px;font-size:13px;cursor:pointer}.edit-form .save-btn{background:var(--primary);color:#fff}.edit-form .cancel-btn{background:var(--border);color:var(--text)}footer{margin-top:24px;text-align:center}.user-info,.list-info{font-size:12px;color:var(--text-secondary);margin:4px 0}.user-info code,.list-info code{background:var(--surface);padding:2px 6px;border-radius:4px;font-size:11px}.home-container{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);padding:48px 32px}.hero{text-align:center;margin-bottom:40px}.hero h2{margin:0 0 12px;font-size:32px;font-weight:700;letter-spacing:-.5px}.hero-tagline{color:var(--text-secondary);margin:0 0 32px;font-size:18px}.new-list-btn{padding:18px 48px;background:var(--primary);color:#fff;border:none;border-radius:var(--radius);font-size:18px;font-weight:600;cursor:pointer;transition:background .2s,transform .1s;box-shadow:0 4px 14px #2563eb4d}.new-list-btn:hover{background:var(--primary-hover);transform:translateY(-1px)}.new-list-btn:active{transform:translateY(0)}.features{list-style:none;padding:32px 0 0;margin:0;border-top:1px solid var(--border)}.features li{padding:12px 0;font-size:15px;color:var(--text);border-bottom:1px solid var(--border)}.features li:last-child{border-bottom:none}.features strong{color:var(--text)}.log-container{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}.log-entries{list-style:none;padding:0;margin:0}.log-table{width:100%;border-collapse:collapse;font-size:13px}.log-entry td{padding:10px 12px;border-bottom:1px solid var(--border);vertical-align:top}.log-entry:has(+.log-value-row) td{border-bottom:none;padding-bottom:0}.log-value-row td{padding:0 12px 10px;border-bottom:1px solid var(--border)}.log-table tr:last-child td{border-bottom:none}.log-user-cell{width:120px;max-width:120px}.log-user{font-family:monospace;font-size:12px;color:var(--text-secondary);display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.log-op-type{font-weight:600;font-size:12px;padding:2px 6px;border-radius:4px;background:var(--bg)}.log-op-type.op-create{background:var(--op-create-bg);color:var(--op-create-text)}.log-op-type.op-set{background:var(--op-set-bg);color:var(--op-set-text)}.log-op-type.op-delete{background:var(--op-delete-bg);color:var(--op-delete-text)}.log-field{font-family:monospace;color:var(--text)}.log-value{font-family:monospace;font-size:12px;color:var(--text-secondary);background:var(--bg);padding:8px;border-radius:4px;white-space:pre-wrap;word-break:break-word}.log-time-cell{white-space:nowrap;color:var(--text-secondary);font-size:12px;text-align:right}@media(max-width:480px){#app{padding:12px}h1{font-size:20px}.todo-form{padding:12px}#nav-links{padding:2px}.nav-link{padding:4px 8px;font-size:12px}.log-entry-header{flex-direction:column;align-items:flex-start;gap:4px}.home-container{padding:32px 20px}.hero h2{font-size:26px}.hero-tagline{font-size:16px}.new-list-btn{padding:16px 36px;font-size:16px;width:100%}.features{padding-top:24px}.features li{font-size:14px}}