:root{--bg: #f4f4f7;--card: #fff;--ink: #222;--muted: #6b6b7b;--line: #e2e2ea;--field: #f4f4f7;--brand: #1a1a2e;--accent: #4a6cf7;--danger: #b4451f;--danger-bg: #fdecea;--goal-bg: #fffdf2;--goal-line: #f0e2b6;--goal-ink: #8a6d00;--done-bg: #e3f5e8;--done-ink: #1a7f37;--safe-b: env(safe-area-inset-bottom, 0px)}@media(prefers-color-scheme:dark){:root{--bg: #16161f;--card: #1f1f2b;--ink: #e8e8ef;--muted: #9a9aae;--line: #2e2e3d;--field: #16161f;--brand: #12121c;--accent: #7b93ff;--danger: #ff8a65;--danger-bg: #3a1f18;--goal-bg: #2a2517;--goal-line: #4a3f1d;--goal-ink: #e0c46a;--done-bg: #16301f;--done-ink: #6ed08a}}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.45 -apple-system,BlinkMacSystemFont,Segoe UI,Noto Sans TC,sans-serif}button,input,textarea{font:inherit;color:inherit}button{cursor:pointer;border:none;background:none}ul{list-style:none;margin:0;padding:0}.gate{min-height:100dvh;display:flex;flex-direction:column;justify-content:center;gap:12px;padding:24px;background:#1a1a2e;color:#fff}.gate h1{margin:0;font-size:1.5rem}.gate p{margin:0;color:#b9b9cc;font-size:.9rem}.gate input{padding:12px;border-radius:8px;border:1px solid #3a3a55;background:#24243c;color:#fff}.gate button{padding:12px;border-radius:8px;background:var(--accent);color:#fff;font-weight:600}.gate button:disabled{opacity:.4}.app{min-height:100dvh;display:flex;flex-direction:column}header{background:var(--brand);color:#fff;padding:12px 16px;padding-top:calc(12px + env(safe-area-inset-top,0px));display:flex;align-items:center;justify-content:space-between;font-weight:600;position:sticky;top:0;z-index:2}.refresh{color:#fff;font-size:1.2rem;padding:0 4px}nav{display:flex;background:var(--card);border-bottom:1px solid var(--line)}nav button{flex:1;padding:11px;color:var(--muted);border-bottom:2px solid transparent}nav button.on{color:var(--accent);border-bottom-color:var(--accent);font-weight:600}main{flex:1;padding:8px 12px 12px}h2{font-size:.8rem;letter-spacing:.04em;color:var(--muted);margin:16px 4px 6px;display:flex;align-items:center;gap:6px}h2.collapsible{cursor:pointer;-webkit-user-select:none;user-select:none}.caret{display:inline-block;transition:transform .15s;font-size:.9rem}.caret.closed{transform:rotate(-90deg)}.count{background:var(--line);color:var(--muted);border-radius:10px;padding:0 7px;font-size:.72rem}.hint{color:var(--muted);text-align:center;padding:28px 0}.error{background:var(--danger-bg);color:var(--danger);border-radius:8px;padding:9px 12px;margin:8px 0}.skeleton{padding:12px 4px}.skeleton .bar{height:38px;border-radius:10px;margin-bottom:8px;background:linear-gradient(90deg,var(--card) 25%,var(--line) 50%,var(--card) 75%);background-size:200% 100%;animation:shimmer 1.4s infinite}@keyframes shimmer{to{background-position:-200% 0}}@media(prefers-reduced-motion:reduce){.skeleton .bar{animation:none}}.goals{background:var(--goal-bg);border:1px solid var(--goal-line);border-radius:10px;padding:4px 8px 8px}.goals h2{color:var(--goal-ink)}.todo{background:var(--card);border:1px solid var(--line);border-radius:10px;margin-bottom:6px;padding:10px 12px}.goals .todo{border-color:var(--goal-line)}.todo.sub{margin-left:18px}.todo.busy{opacity:.5}.todo-row{display:flex;gap:10px;align-items:flex-start}.check{flex:none;width:21px;height:21px;margin-top:1px;border:2px solid var(--muted);border-radius:6px;background:var(--card)}.check:active{background:var(--accent);border-color:var(--accent)}.todo-body{flex:1;min-width:0}.todo-text{word-break:break-word}.goal-dot{margin-right:4px}.todo-progress{color:var(--muted);font-size:.85rem;margin-top:3px;word-break:break-word}.badge{margin-left:6px;color:var(--danger);background:var(--danger-bg);border-radius:4px;padding:1px 5px;font-size:.72rem;white-space:nowrap}.todo-actions{display:flex;gap:6px;margin-top:10px}.todo-actions input{flex:1;min-width:0;padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:var(--field)}.todo-actions button{padding:8px 12px;border-radius:8px;background:var(--accent);color:#fff;font-size:.9rem}.todo-actions button.danger{background:var(--danger)}.todo-actions button:disabled{opacity:.4}.fab{position:fixed;right:16px;z-index:3;bottom:calc(78px + var(--safe-b));width:52px;height:52px;border-radius:26px;background:var(--accent);color:#fff;font-size:1.7rem;line-height:1;box-shadow:0 3px 12px #00000040}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:10;background:#00000073;display:flex;align-items:flex-end;justify-content:center}.sheet{width:100%;max-width:520px;background:var(--card);border-radius:16px 16px 0 0;padding:16px 16px calc(16px + var(--safe-b))}.sheet h3{margin:0 0 10px;font-size:1rem}.sheet>input{width:100%;padding:11px 12px;margin-bottom:10px;border:1px solid var(--line);border-radius:8px;background:var(--field)}.chips{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px}.chips button{padding:5px 13px;border-radius:999px;font-size:.85rem;background:var(--field);border:1px solid var(--line);color:var(--muted)}.chips button.on{background:var(--accent);border-color:var(--accent);color:#fff}.sheet-actions{display:flex;gap:8px;justify-content:flex-end}.sheet-actions button{padding:9px 18px;border-radius:8px;color:var(--muted);background:var(--field)}.sheet-actions button.primary{background:var(--accent);color:#fff;font-weight:600}.sheet-actions button:disabled{opacity:.4}.segmented{display:flex;gap:6px;margin:8px 4px}.segmented button{padding:5px 14px;border-radius:999px;background:var(--card);border:1px solid var(--line);color:var(--muted);font-size:.85rem}.segmented button.on{background:var(--accent);border-color:var(--accent);color:#fff}.history li{display:flex;gap:10px;align-items:flex-start;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:10px 12px;margin-bottom:6px}.history .grow{flex:1;min-width:0}.history .when{flex:none;color:var(--muted);font-size:.8rem;padding-top:2px;font-variant-numeric:tabular-nums}.history .what{word-break:break-word}.history .kind{display:inline-block;margin-right:6px;font-size:.72rem;border-radius:4px;padding:1px 5px;background:var(--line);color:var(--muted)}.history .done .kind{background:var(--done-bg);color:var(--done-ink)}.undo-link{flex:none;color:var(--accent);font-size:.85rem;padding:2px 0}.undo-link:disabled{opacity:.4}footer{position:sticky;bottom:0;background:var(--card);border-top:1px solid var(--line);padding:8px 12px calc(8px + var(--safe-b))}.toast{display:flex;align-items:center;justify-content:space-between;gap:12px;background:var(--brand);color:#fff;border-radius:10px;padding:10px 14px;margin-bottom:8px}.toast span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:.9rem}.toast button{flex:none;color:#9fb2ff;font-weight:600}.reply{display:flex;gap:8px;align-items:flex-start;background:var(--field);border:1px solid var(--line);border-radius:10px;padding:10px 12px;margin-bottom:8px}.reply-text{flex:1;min-width:0;white-space:pre-wrap;max-height:45dvh;overflow-y:auto;font-size:.9rem}.reply-close{flex:none;color:var(--muted);padding:0 2px}.compose{display:flex;gap:8px;align-items:flex-end}.compose textarea{flex:1;min-width:0;resize:none;max-height:25dvh;padding:10px 12px;border:1px solid var(--line);border-radius:18px;background:var(--field)}.compose button{flex:none;padding:10px 16px;border-radius:18px;background:var(--accent);color:#fff;font-weight:600}.compose button:disabled{opacity:.4}.custom-category{width:100%;padding:9px 12px;margin:-6px 0 14px;border:1px solid var(--accent);border-radius:8px;background:var(--field)}.history-toggle{display:block;margin:8px 0 0 31px;color:var(--accent);font-size:.82rem}.trail{margin:8px 0 2px;padding:0 0 0 31px;list-style:none;counter-reset:none;border-left:none}.trail li{display:flex;gap:8px;align-items:baseline;padding:3px 0 3px 10px;border-left:2px solid var(--line)}.trail li:first-child{padding-top:0}.trail li:last-child{padding-bottom:0}.trail time{flex:none;color:var(--muted);font-size:.72rem;font-variant-numeric:tabular-nums}.trail span{min-width:0;font-size:.87rem;word-break:break-word}.trail .created span{color:var(--muted)}