:root{--primary: #d1453b;--primary-soft: #f26c5a;--bg: #faf9f7;--bg-sidebar: #f3f1ee;--bg-card: #ffffff;--bg-hover: rgba(0, 0, 0, .045);--bg-active: #ffe9e4;--text: #26221e;--text-sub: #7d7871;--text-faint: #b3aea6;--border: #e8e5e0;--danger: #d1453b;--due: #7c5cd6;--shadow: 0 1px 3px rgba(30, 25, 20, .06), 0 4px 16px rgba(30, 25, 20, .05);--radius: 10px}@media(prefers-color-scheme:dark){:root{--primary: #e5675c;--primary-soft: #f26c5a;--bg: #1d1c1a;--bg-sidebar: #232220;--bg-card: #2a2927;--bg-hover: rgba(255, 255, 255, .06);--bg-active: #43302c;--text: #ece9e4;--text-sub: #a5a099;--text-faint: #6e6a64;--border: #3a3835;--due: #a68bf0;--shadow: 0 1px 3px rgba(0, 0, 0, .3), 0 4px 16px rgba(0, 0, 0, .25)}}*{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%}body{font-family:-apple-system,BlinkMacSystemFont,Hiragino Sans,Noto Sans JP,Segoe UI,sans-serif;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}button{font-family:inherit;color:inherit}.app{display:flex;min-height:100vh;min-height:100dvh}.sidebar{width:272px;flex-shrink:0;background:var(--bg-sidebar);padding:20px 12px;padding-top:calc(20px + env(safe-area-inset-top));display:flex;flex-direction:column;gap:2px;overflow-y:auto}.logo{display:flex;align-items:center;gap:10px;padding:0 10px 20px;font-size:17px;font-weight:700;letter-spacing:.01em}.logo svg{border-radius:7px}.nav-item{display:flex;align-items:center;gap:10px;width:100%;border:none;background:none;text-align:left;padding:9px 10px;border-radius:8px;font-size:14px;cursor:pointer;color:var(--text);transition:background .12s}.nav-item:hover{background:var(--bg-hover)}.nav-item.active{background:var(--bg-active);color:var(--primary);font-weight:600}.nav-icon{display:inline-flex;align-items:center;justify-content:center;width:20px;color:var(--text-sub);flex-shrink:0}.nav-item.active .nav-icon{color:var(--primary)}.nav-icon.hash{font-size:15px;font-weight:600}.nav-label{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.count{margin-left:auto;font-size:12px;color:var(--text-faint);font-variant-numeric:tabular-nums}.projects-header{display:flex;align-items:center;justify-content:space-between;padding:22px 10px 8px;font-size:12px;font-weight:700;letter-spacing:.06em;color:var(--text-sub)}.project-list{display:flex;flex-direction:column;gap:2px}.project-row{display:flex;align-items:center;gap:2px}.project-row .nav-item{flex:1;min-width:0}.project-row .icon-btn.delete{opacity:0}.project-row:hover .icon-btn.delete,.project-row .icon-btn.delete:focus-visible{opacity:1}.project-form{padding:4px 8px 8px}.project-form input{width:100%;padding:8px 10px;border:1.5px solid var(--primary-soft);border-radius:8px;font-size:13px;background:var(--bg-card);color:var(--text);outline:none}.main{flex:1;min-width:0;max-width:720px;padding:28px 40px 60px;padding-top:calc(28px + env(safe-area-inset-top));margin:0 auto}.main-header{display:flex;align-items:center;gap:12px;margin-bottom:22px}.main-header h2{font-size:24px;font-weight:700;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.hamburger{display:none;border:none;background:none;cursor:pointer;padding:6px;margin-left:-6px;border-radius:8px;color:var(--text)}.hamburger:hover{background:var(--bg-hover)}.overlay{display:none}.show-completed{font-size:13px;color:var(--text-sub);display:flex;align-items:center;gap:6px;cursor:pointer;white-space:nowrap;-webkit-user-select:none;user-select:none}.show-completed input{accent-color:var(--primary)}.error{background:#d1453b1a;color:var(--danger);padding:10px 14px;border-radius:8px;margin-bottom:16px;font-size:13px;word-break:break-all}.task-form{display:flex;gap:8px;margin-bottom:24px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:6px;box-shadow:var(--shadow);transition:border-color .15s}.task-form:focus-within{border-color:var(--primary-soft)}.task-input{flex:1;min-width:0;padding:9px 10px;border:none;font-size:15px;background:none;color:var(--text);outline:none}.task-input::placeholder{color:var(--text-faint)}.due-input{padding:6px 8px;border:none;border-radius:8px;font-size:13px;font-family:inherit;color:var(--text-sub);background:none;outline:none;cursor:pointer}.due-input:hover{background:var(--bg-hover)}.add-btn{padding:8px 18px;border:none;border-radius:8px;background:var(--primary);color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:opacity .12s}.add-btn:hover:not(:disabled){opacity:.88}.add-btn:disabled{opacity:.35;cursor:default}.task-list{list-style:none}.task{display:flex;align-items:flex-start;gap:12px;padding:12px 4px;border-bottom:1px solid var(--border);font-size:14.5px;animation:fade-in .18s ease}@keyframes fade-in{0%{opacity:0;transform:translateY(2px)}to{opacity:1;transform:none}}.task-check{-moz-appearance:none;appearance:none;-webkit-appearance:none;width:20px;height:20px;margin-top:1px;border:1.8px solid var(--text-faint);border-radius:50%;cursor:pointer;flex-shrink:0;position:relative;transition:background .15s,border-color .15s}.task-check:hover{border-color:var(--primary);background:#d1453b14}.task-check:checked{background:var(--primary);border-color:var(--primary)}.task-check:checked:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5.5 12.5l4 4 8.5-9.5'/%3E%3C/svg%3E") center / 12px no-repeat}.task-body{flex:1;min-width:0;display:flex;flex-direction:column;gap:3px}.task-title{word-break:break-word;transition:color .15s}.task.done .task-title{text-decoration:line-through;color:var(--text-faint)}.task-meta{display:flex;align-items:center;gap:10px}.task-meta:empty{display:none}.task-project{font-size:12px;color:var(--text-sub)}.due{font-size:12px;color:var(--due);white-space:nowrap}.due.overdue{color:var(--danger);font-weight:600}.task .icon-btn.delete{opacity:0;margin-top:1px}.task:hover .icon-btn.delete,.task .icon-btn.delete:focus-visible{opacity:1}.icon-btn{display:inline-flex;align-items:center;justify-content:center;border:none;background:none;cursor:pointer;color:var(--text-sub);padding:5px;border-radius:6px;transition:background .12s,color .12s,opacity .12s}.icon-btn:hover{background:var(--bg-hover);color:var(--text)}.icon-btn.delete:hover{color:var(--danger)}.empty{display:flex;flex-direction:column;align-items:center;gap:10px;color:var(--text-faint);padding:56px 4px;font-size:14px}.empty-icon{font-size:32px}@media(max-width:768px){.sidebar{position:fixed;inset:0 auto 0 0;z-index:20;transform:translate(-100%);transition:transform .22s ease;box-shadow:none;width:min(300px,84vw)}.sidebar.open{transform:translate(0);box-shadow:0 0 40px #00000040}.overlay{display:block;position:fixed;top:0;right:0;bottom:0;left:0;z-index:10;background:#00000052;animation:fade-in .2s ease}.hamburger{display:inline-flex}.main{padding:18px 16px 40px;padding-top:calc(14px + env(safe-area-inset-top))}.main-header h2{font-size:20px}.task .icon-btn.delete,.project-row .icon-btn.delete{opacity:1}.task-form{flex-wrap:wrap}.task-input{flex-basis:100%}.due-input{flex:1}}