:root{--accent: #3b6ef5;--bg: #fafafa;--surface: #ffffff;--surface-2: #f3f4f6;--line: #e5e7eb;--text: #1a1a1a;--muted: #8a8f98;--past: #b9bcc2;--danger: #dc2626;--radius: 10px;--radius-sm: 7px;--accent-bar: 3px;--fs-title: 13.5px;--fs-meta: 12px;--fs-head: 13px;--fw-title: 500;--shadow: 0 6px 24px rgba(0, 0, 0, .12);font-family:system-ui,-apple-system,Segoe UI,Hiragino Sans,Noto Sans JP,sans-serif;color:var(--text)}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);-webkit-font-smoothing:antialiased}button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}input,select,textarea{font:inherit;color:inherit}.muted{color:var(--muted);font-size:13px}.app{display:flex;flex-direction:column;height:100%}.topbar{display:flex;align-items:center;gap:16px;padding:10px 16px;background:var(--surface);border-bottom:1px solid var(--line)}.brand{font-weight:700;letter-spacing:.02em;display:flex;align-items:center;gap:8px}.demo-badge{font-size:10px;background:var(--accent);color:#fff;padding:2px 6px;border-radius:6px;letter-spacing:.08em}.topbar-actions{margin-left:auto;display:flex;align-items:center;gap:8px}button.primary{background:var(--accent);color:#fff;border-radius:var(--radius);padding:8px 14px;font-weight:600}button.primary.large{padding:12px 20px;font-size:16px;width:100%}button.ghost{border:1px solid var(--line);border-radius:var(--radius);padding:7px 12px;background:var(--surface)}button.ghost:hover{background:var(--surface-2)}.segment{display:flex;background:var(--surface-2);border-radius:var(--radius);padding:3px}.segment button{padding:6px 12px;border-radius:7px;font-size:13px;color:var(--muted)}.segment button.active{background:var(--surface);color:var(--text);box-shadow:0 1px 3px #00000014}.split{flex:1;display:grid;grid-template-columns:1.4fr 1fr;min-height:0}.split.mobile{grid-template-columns:1fr}.single{flex:1;display:flex;min-height:0}.single .pane{flex:1;border-right:none}.schedule-pane{display:flex;flex-direction:column;min-height:100%}.view-seg{margin-left:auto;display:inline-flex;background:var(--surface-2);border-radius:var(--radius);padding:3px}.view-seg button{min-width:34px;padding:4px 10px;font-size:var(--fs-head);font-weight:600;color:var(--muted);border-radius:7px}.view-seg button.active{background:var(--accent);color:#fff}.schedule-pane>.month,.schedule-pane>.year{flex:1;display:flex;flex-direction:column}.month{padding:12px}.month-grid{flex:1;display:grid;grid-template-columns:repeat(7,minmax(0,1fr));grid-template-rows:auto;grid-auto-rows:minmax(72px,1fr);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--surface)}.month-wd{text-align:center;font-size:var(--fs-meta);font-weight:600;color:var(--muted);padding:6px 0;border-bottom:1px solid var(--line);border-left:1px solid var(--line)}.month-wd:first-child{border-left:none}.month-cell{border-left:1px solid var(--line);border-top:1px solid var(--line);padding:3px 4px;overflow:hidden;cursor:pointer;display:flex;flex-direction:column;gap:2px}.month-cell:nth-child(7n+1){border-left:none}.month-cell:hover{background:var(--surface-2)}.month-cell.dim{background:#fcfcfc;color:var(--past)}.month-cell.dim .month-date{color:var(--past)}.month-date{font-size:var(--fs-meta);font-weight:600;text-align:right;padding-right:2px}.month-cell.today .month-date{color:#fff;background:var(--accent);border-radius:50%;width:20px;height:20px;line-height:20px;text-align:center;margin-left:auto;padding:0}.month-events{display:flex;flex-direction:column;gap:2px;overflow:hidden}.month-chip{font-size:11px;background:var(--surface-2);border-left:var(--accent-bar) solid var(--accent);border-radius:4px;padding:1px 4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.month-chip.done{text-decoration:line-through;color:var(--muted)}.month-chip-time{color:var(--muted);margin-right:3px}.month-more{font-size:10px;color:var(--muted);padding-left:2px}.year{padding:12px}.year-grid{flex:1;display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:12px;align-content:start}.mini-month{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);padding:8px;cursor:pointer}.mini-month:hover{background:var(--surface-2)}.mini-title{font-size:var(--fs-head);font-weight:700;margin-bottom:6px}.mini-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:1px}.mini-day{font-size:10px;text-align:center;line-height:18px;border-radius:50%;color:var(--text)}.mini-day.dim{color:transparent}.mini-day.has{background:#3b6ef526;font-weight:700;color:var(--accent)}.mini-day.today{background:var(--accent);color:#fff;font-weight:700}.pane{min-height:0;overflow:auto;border-right:1px solid var(--line)}.pane-todo{border-right:none}.sync-indicator{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--muted)}.sync-indicator .dot{width:8px;height:8px;border-radius:50%;background:#22c55e}.sync-indicator .dot.err{background:var(--danger)}.sync-indicator .dot.spin{background:var(--accent);animation:pulse 1s infinite}@keyframes pulse{50%{opacity:.3}}.week{padding:12px}.week-head{display:flex;align-items:center;gap:8px;margin-bottom:10px}.week-title{font-size:14px;font-weight:600}.today-btn{margin-left:6px}.week-grid{display:grid;grid-template-columns:48px repeat(5,minmax(0,1fr));border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--surface)}.allday-toggle{display:flex;align-items:center;gap:8px;width:100%;padding:7px 10px;margin-bottom:6px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);font-size:13px;color:var(--text)}.allday-toggle:hover{background:var(--surface-2)}.allday-toggle .caret{color:var(--muted);width:12px}.allday-toggle .count{margin-left:auto;background:var(--surface-2);color:var(--muted);border-radius:10px;padding:1px 8px;font-size:12px}.allday-label{font-size:10px;color:var(--muted);display:flex;flex-direction:column;align-items:center;justify-content:center;border-bottom:1px solid var(--line)}.allday-cell{min-height:28px;padding:4px;border-left:1px solid var(--line);border-bottom:1px solid var(--line);display:flex;flex-direction:column;gap:3px}.allday-chip{font-size:var(--fs-meta);background:var(--surface-2);border-left:var(--accent-bar) solid var(--accent);border-radius:var(--radius-sm);padding:3px 6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;cursor:grab}.allday-chip:active{cursor:grabbing}.allday-chip.done{text-decoration:line-through;color:var(--muted)}.allday-chip.out{background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--accent)}.allday-chip.out.past{opacity:.5}.chip-time{color:var(--muted);font-variant-numeric:tabular-nums;margin-right:4px}.weekend{margin-top:12px}.weekend-head{font-size:var(--fs-head);font-weight:700;color:var(--muted);margin:0 2px 6px}.weekend-cols{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:8px}.weekend-day{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);padding:8px;min-height:60px}.weekend-day.selected{background:#3b6ef50a}.weekend-day-head{font-size:var(--fs-head);font-weight:600;margin-bottom:6px}.weekend-empty{font-size:12px;color:var(--past)}.weekend-item{display:flex;align-items:center;gap:8px;font-size:var(--fs-meta);background:var(--surface);border:1px solid var(--line);border-left:var(--accent-bar) solid var(--accent);border-radius:var(--radius-sm);padding:5px 7px;margin-bottom:4px;cursor:pointer}.weekend-item:hover{background:var(--surface-2)}.weekend-item.past{opacity:.45}.weekend-item.done{text-decoration:line-through;color:var(--muted)}.weekend-time{color:var(--muted);font-variant-numeric:tabular-nums;flex-shrink:0;min-width:34px}.weekend-title{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.weekend-check{border:1px solid var(--line);border-radius:5px;padding:0 6px;font-size:11px;background:var(--surface);flex-shrink:0}.time-gutter .day-col-head{height:30px}.hour-label{font-size:11px;color:var(--muted);text-align:right;padding-right:4px;border-top:1px solid var(--line)}.day-col{border-left:1px solid var(--line);position:relative}.day-col.selected{background:#3b6ef50a}.day-col-head{height:30px;display:flex;align-items:center;justify-content:center;font-size:var(--fs-head);font-weight:600;border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--surface);z-index:2}.day-col-head.is-today{color:var(--accent)}.day-body{position:relative}.hour-line{position:absolute;left:0;right:0;border-top:1px solid var(--line)}.now-line{position:absolute;left:0;right:0;border-top:2px solid var(--danger);z-index:3}.drop-hint{position:absolute;left:0;right:0;border-top:2px dashed var(--accent);z-index:40;pointer-events:none}.drop-hint-label{position:absolute;top:-10px;right:3px;background:var(--accent);color:#fff;font-size:12px;font-weight:700;font-variant-numeric:tabular-nums;padding:2px 8px;border-radius:10px;box-shadow:0 2px 6px #0000004d;white-space:nowrap}.now-dot{position:absolute;left:-3px;top:-4px;width:6px;height:6px;background:var(--danger);border-radius:50%}.event{position:absolute;left:3px;right:3px;background:var(--surface);border:1px solid var(--line);border-left:var(--accent-bar) solid var(--accent);border-radius:var(--radius-sm);padding:3px 6px;font-size:var(--fs-meta);overflow:hidden;z-index:1;cursor:grab}.event:active{cursor:grabbing}.event.past{opacity:.45}.event.done{text-decoration:line-through;color:var(--muted)}.event-title{font-weight:var(--fw-title);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;line-height:1.3}.event-time{color:var(--muted);font-size:11px;white-space:nowrap}.event.compact{padding:1px 6px;display:flex;align-items:center}.event.compact .event-time{display:none}.event-actions{position:absolute;top:2px;right:2px;display:none;gap:4px;z-index:2}.event:hover .event-actions{display:flex}.event-actions button{font-size:11px;line-height:1.4;border:1px solid var(--line);border-radius:5px;padding:0 5px;background:var(--surface);box-shadow:0 1px 3px #00000026}.todo{padding:12px}.todo-tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-bottom:8px}.todo-tabs button{padding:8px 12px;font-size:var(--fs-head);color:var(--muted);font-weight:600;border-bottom:2px solid transparent}.todo-tabs button.active{color:var(--text);border-bottom-color:var(--accent)}.tab-note{font-size:12px;color:var(--muted);background:var(--surface-2);padding:6px 10px;border-radius:8px;margin-bottom:8px}.todo-list{display:flex;flex-direction:column;gap:6px}.empty{text-align:center;color:var(--muted);padding:40px 0;font-size:14px}.reschedule-banner{width:100%;text-align:left;font-size:13px;font-weight:600;color:#9a3412;background:#fff7ed;border:1px solid #fed7aa;border-radius:var(--radius);padding:8px 12px;margin-bottom:8px}.reschedule-banner:hover{background:#ffedd5}.reschedule-list{max-height:40vh;overflow:auto;margin:10px 0;border:1px solid var(--line);border-radius:var(--radius)}.reschedule-row{display:flex;align-items:center;gap:8px;padding:8px 10px;border-bottom:1px solid var(--line);font-size:var(--fs-title);cursor:pointer}.reschedule-row:last-child{border-bottom:none}.reschedule-row .color-bar{width:3px;height:16px;border-radius:2px;flex-shrink:0}.reschedule-title{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.reschedule-due{font-size:var(--fs-meta);color:var(--danger);flex-shrink:0}.carry-section{border:1px dashed var(--line);border-radius:var(--radius);padding:6px;margin-bottom:8px}.carry-head{font-size:12px;font-weight:700;color:var(--accent);margin:2px 4px 6px}.item-row{display:flex;align-items:center;gap:10px;background:var(--surface);border:1px solid var(--line);border-left:var(--accent-bar) solid var(--accent);border-radius:var(--radius-sm);padding:8px 10px}.item-row.carried{background:#3b6ef50a}.item-row:hover{background:var(--surface-2)}.check{width:20px;height:20px;border:2px solid var(--muted);border-radius:50%;flex-shrink:0}.check:hover{border-color:var(--accent);background:#3b6ef51a}.item-main{flex:1;min-width:0}.item-title{display:flex;align-items:center;gap:6px;font-size:var(--fs-title);font-weight:var(--fw-title)}.item-meta{display:flex;gap:10px;font-size:var(--fs-meta);color:var(--muted);margin-top:2px}.item-meta .notes{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:200px}.badge{font-size:10px;background:var(--accent);color:#fff;border-radius:5px;padding:1px 5px}.badge.muted{background:var(--surface-2);color:var(--muted)}.edit-btn{width:28px;height:28px;border-radius:8px;border:1px solid var(--line);background:var(--surface);color:var(--muted);font-size:13px;flex-shrink:0}.edit-btn:hover{background:var(--surface-2);color:var(--text)}.prio{width:28px;height:28px;border-radius:8px;border:1px solid var(--line);font-size:12px;font-weight:700;flex-shrink:0}.prio-0{color:var(--muted)}.prio-1{color:#2563eb}.prio-2{color:#d97706}.prio-3{color:var(--danger);border-color:var(--danger)}.sheet-scrim,.scrim{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000040;z-index:40}.sheet{position:fixed;left:0;right:0;bottom:0;max-height:70vh;background:var(--surface);border-radius:16px 16px 0 0;box-shadow:var(--shadow);z-index:50;padding:12px 16px 24px;overflow:auto;animation:rise .18s ease-out}@media (min-width: 821px){.sheet{left:auto;right:16px;bottom:16px;width:420px;border-radius:16px}}@keyframes rise{0%{transform:translateY(30px);opacity:0}}.sheet-handle{width:36px;height:4px;background:var(--line);border-radius:2px;margin:0 auto 10px}.sheet-head{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:10px}.sheet-title{font-weight:700}.duration-row{display:flex;align-items:center;gap:6px;margin-bottom:12px;flex-wrap:wrap}.chip{border:1px solid var(--line);border-radius:16px;padding:4px 10px;font-size:12px;background:var(--surface)}.chip.active{background:var(--accent);color:#fff;border-color:var(--accent)}.slot-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(64px,1fr));gap:6px}.slot{padding:8px 0;border-radius:8px;font-size:13px;border:1px solid var(--line)}.slot.free{background:#3b6ef514;border-color:#3b6ef566;color:var(--accent);font-weight:600}.slot.free:hover{background:var(--accent);color:#fff}.slot.busy{background:var(--surface-2);color:var(--past);cursor:not-allowed}.snackbar{position:fixed;left:50%;bottom:24px;transform:translate(-50%);background:#1a1a1a;color:#fff;border-radius:var(--radius);padding:12px 16px;display:flex;align-items:center;gap:16px;box-shadow:var(--shadow);z-index:60;font-size:14px}.snackbar-actions{display:flex;align-items:center;gap:8px}.snackbar button{color:var(--accent);font-weight:700}.snackbar .close{color:var(--muted)}.drawer{position:fixed;top:0;right:0;bottom:0;width:min(380px,90vw);background:var(--surface);z-index:50;box-shadow:var(--shadow);display:flex;flex-direction:column}.drawer-head,.modal h2{margin:0}.drawer-head{display:flex;justify-content:space-between;align-items:center;padding:14px 16px;border-bottom:1px solid var(--line)}.drawer-body{overflow:auto;padding:8px 16px}.history-row{display:flex;justify-content:space-between;align-items:center;padding:10px 0;border-bottom:1px solid var(--line)}.history-title{font-weight:500}.modal{position:fixed;left:50%;top:50%;transform:translate(-50%,-50%);width:min(460px,92vw);max-height:90vh;overflow:auto;background:var(--surface);border-radius:16px;box-shadow:var(--shadow);z-index:50;padding:20px}.modal h2{margin-bottom:14px}.modal label{display:flex;flex-direction:column;gap:4px;font-size:13px;color:var(--muted);margin-bottom:12px}.modal input,.modal select,.modal textarea{border:1px solid var(--line);border-radius:8px;padding:9px 10px;background:var(--surface)}.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}.modal-actions{display:flex;align-items:center;justify-content:flex-end;gap:8px;margin-top:8px}.danger-text{color:var(--danger);font-weight:600;padding:7px 10px;border-radius:var(--radius)}.danger-text:hover{background:#dc262614}.signin{height:100%;display:grid;place-items:center;padding:20px}.signin-card{width:min(420px,100%);background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:32px;text-align:center}.signin-card h1{margin:0 0 4px;font-size:22px}.notice{background:#fff7ed;border:1px solid #fed7aa;color:#9a3412;font-size:12px;text-align:left;padding:10px 12px;border-radius:8px;margin:16px 0;line-height:1.6}.notice code{background:#0000000f;padding:1px 4px;border-radius:4px}.error{color:var(--danger);font-size:13px;margin-top:12px}.fineprint{font-size:11px;color:var(--muted);margin-top:16px}