:root{--text:#6b6375;--text-h:#08060d;--bg:#fff;--border:#e5e4e7;--code-bg:#f4f3ec;--accent:#aa3bff;--accent-bg:#aa3bff1a;--accent-border:#aa3bff80;--social-bg:#f4f3ec80;--shadow:#0000001a 0 10px 15px -3px, #0000000d 0 4px 6px -2px;--sans:system-ui, "Segoe UI", Roboto, sans-serif;--heading:system-ui, "Segoe UI", Roboto, sans-serif;--mono:ui-monospace, Consolas, monospace;font:18px/145% var(--sans);letter-spacing:.18px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}@media (width<=1024px){:root{font-size:16px}}@media (prefers-color-scheme:dark){:root{--text:#9ca3af;--text-h:#f3f4f6;--bg:#16171d;--border:#2e303a;--code-bg:#1f2028;--accent:#c084fc;--accent-bg:#c084fc26;--accent-border:#c084fc80;--social-bg:#2f303a80;--shadow:#0006 0 10px 15px -3px, #00000040 0 4px 6px -2px}#social .button-icon{filter:invert()brightness(2)}}body{margin:0}#root{text-align:center;border-inline:1px solid var(--border);box-sizing:border-box;flex-direction:column;width:1126px;max-width:100%;min-height:100svh;margin:0 auto;display:flex}h1,h2{font-family:var(--heading);color:var(--text-h);font-weight:500}h1{letter-spacing:-1.68px;margin:32px 0;font-size:56px}@media (width<=1024px){h1{margin:20px 0;font-size:36px}}h2{letter-spacing:-.24px;margin:0 0 8px;font-size:24px;line-height:118%}@media (width<=1024px){h2{font-size:20px}}p{margin:0}code,.counter{font-family:var(--mono);color:var(--text-h);border-radius:4px;display:inline-flex}code{background:var(--code-bg);padding:4px 8px;font-size:15px;line-height:135%}input,button{border:1px solid #ccc;border-radius:6px;padding:8px 12px}.input-area{background-color:#f5f5f5;border-radius:8px;align-items:flex-start;gap:12px;padding:16px;display:flex}.error-text{color:#e53e3e;margin-top:-8px;margin-bottom:0;margin-left:4px;padding-top:10px;font-size:12px}.error-input{background-color:#fff5f5;border:1px solid #e53e3e}.todo-app{text-align:left;max-width:800px;margin:0 auto}.input-group{flex-direction:column;display:flex}.add-button{color:#333;cursor:pointer;background-color:#fff;border:2px solid #007bff;font-weight:700}.empty-message{color:#666;text-align:center;margin-top:40px}.todo-list{flex-direction:column;gap:12px;margin-top:32px;display:flex}.todo-item{background-color:#f9f9f9;border-radius:8px;justify-content:space-between;align-items:center;padding:16px 20px;display:flex}.todo-title{color:#333;margin:0 0 8px;font-weight:700}.todo-date{color:#666;margin:0;font-size:13px}.delete-button{color:#fff;cursor:pointer;background-color:#e53e3e;border:none;padding:8px 16px;font-size:12px}.back-link{color:#111;margin-bottom:20px;font-weight:700;text-decoration:none;transition:color .2s;display:inline-block}.back-link:hover{color:#0056b3;text-decoration:underline}.input-group label{color:#555;text-align:left;margin:10px 0;font-weight:700;display:block}textarea{box-sizing:border-box;resize:vertical;border:1px solid #ddd;border-radius:8px;outline:none;width:100%;min-height:150px;padding:12px;font-family:inherit;font-size:16px;transition:border-color .2s}textarea:focus{border-color:#007bff;box-shadow:0 0 5px #007bff33}@media (width<=600px){.todo-app{padding:0 12px}.input-area{flex-direction:column;gap:8px}.input-area input,.input-area .reminder-select,.input-area .add-button{box-sizing:border-box;width:100%}.tab-nav{margin-bottom:12px}.calendar-cell{min-height:52px;padding:3px;font-size:12px}.calendar-day-name{padding:4px 0;font-size:11px}.calendar-title{font-size:16px}}.tab-nav{gap:4px;margin-bottom:20px;display:flex}.tab{color:#555;cursor:pointer;background:#f0f0f0;border:1px solid #ccc;border-radius:6px 6px 0 0;padding:8px 20px;font-weight:700;text-decoration:none}.tab.active{color:#007bff;background:#fff;border-bottom:1px solid #fff}.tab:hover:not(.active){background:#e0e0e0}.reminder-select{cursor:pointer;background:#fff;border:1px solid #ccc;border-radius:6px;padding:8px 12px;font-size:14px}.calendar-header{align-items:center;gap:16px;margin-bottom:12px;display:flex}.calendar-title{text-align:center;min-width:160px;margin:0;font-size:20px}.cal-nav-btn{cursor:pointer;background:#fff;border:1px solid #ccc;border-radius:6px;padding:6px 14px;font-size:16px}.cal-nav-btn:hover{background:#f0f0f0}.calendar-grid{border-top:1px solid #ddd;border-left:1px solid #ddd;grid-template-columns:repeat(7,1fr);display:grid}.calendar-day-name{text-align:center;color:#555;background:#f5f5f5;border-bottom:1px solid #ddd;border-right:1px solid #ddd;padding:8px 0;font-size:13px;font-weight:700}.calendar-day-name.sun{color:#e53e3e}.calendar-day-name.sat{color:#3182ce}.calendar-cell{vertical-align:top;border-bottom:1px solid #ddd;border-right:1px solid #ddd;min-height:80px;padding:6px}.calendar-cell.empty{background:#fafafa}.calendar-cell.today{background:#ebf8ff}.calendar-cell.sun .calendar-day-num{color:#e53e3e}.calendar-cell.sat .calendar-day-num{color:#3182ce}.calendar-day-num{color:#333;margin-bottom:4px;font-size:13px;font-weight:700;display:block}.calendar-cell.today .calendar-day-num{color:#fff;background:#007bff;border-radius:50%;justify-content:center;align-items:center;width:22px;height:22px;display:flex}.calendar-todos{flex-direction:column;gap:2px;display:flex}.calendar-todo-badge{color:#fff;white-space:nowrap;text-overflow:ellipsis;background:#007bff;border-radius:4px;padding:2px 6px;font-size:11px;text-decoration:none;display:block;overflow:hidden}.calendar-todo-badge:hover{background:#0056b3}