/* ============================================================
   Tasker — DesignBookmark Motion tokens をそのまま採用
   springs は元ファイルの "stiffness damping" 表記:
   pop 520/16, settle 280/22, soft 260/24, fade 420/32,
   lead 620/36, follow 900/50
   CSS側では近似の spring bezier に変換して使う。
   テーマ: :root = ダーク（元トークン）, [data-theme="light"] = ライト上書き
   初期表示は html[data-theme="light"]。全UIは var() 経由でのみ色を持つ。
   ============================================================ */
:root{
  --stage:#000; --card:#171717; --surface:#262626;
  --fill-1:rgba(255,255,255,.05); --fill-2:rgba(255,255,255,.09); --fill-3:rgba(255,255,255,.14);
  --line:rgba(255,255,255,.12);
  --text:#fff; --text-2:rgba(255,255,255,.78); --muted:#9a9a9a; --muted-2:#828282; --chip-text:#b4b4b4;
  --green:#34d17a; --green-text:#3ce085; --orange:#ff9f0a; --orange-text:#ff9f0a; --red:#ff5a5f;
  --yellow:#ffd23f; --blue:#3ec9ff; --purple:#c69bff; --pink:#ff6ad5;
  --green-soft:rgba(52,209,122,.14); --red-soft:rgba(255,90,95,.14); --orange-soft:rgba(255,159,10,.14); --blue-soft:rgba(62,201,255,.14);
  --on-green:#04140a; --object:#2c2c2c; --inverse:#fff; --on-inverse:#000;
  --glow:rgba(255,255,255,.16); --sh:0; color-scheme:dark;
  --font:Inter,"Helvetica Neue",Helvetica,Arial,"Hiragino Kaku Gothic ProN","Noto Sans JP",sans-serif;
  --r-xs:6px; --r-row:12px; --r-panel:18px; --r-sheet:24px; --r-card:28px; --r-pill:999px;
  --spring:cubic-bezier(.34,1.56,.64,1); --spring-soft:cubic-bezier(.3,1.25,.4,1); --ease:cubic-bezier(.2,0,0,1);
  --t-press:120ms; --t-hover:160ms; --t-state:220ms; --t-pop:320ms;
  --ring:0 0 0 3px var(--glow);
}
[data-theme="light"]{
  --stage:#fff; --card:#f7f7f6; --surface:#fff;
  --fill-1:rgba(23,24,26,.04); --fill-2:rgba(23,24,26,.07); --fill-3:rgba(23,24,26,.12);
  --line:rgba(23,24,26,.14);
  --text:#17181a; --text-2:#3c3b37; --muted:#6f6e68; --muted-2:#85847e; --chip-text:#5c5b56;
  --green-text:#15803d; --orange-text:#c2660a;
  --green-soft:rgba(21,128,61,.10); --red-soft:rgba(217,45,32,.08); --orange-soft:rgba(194,102,10,.10); --blue-soft:rgba(0,100,209,.08);
  --object:#e6e5e2; --inverse:#0e0f11; --on-inverse:#f4f3f1;
  --glow:rgba(23,24,26,.08); color-scheme:light;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--stage);color:var(--text);font-family:var(--font);font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased;transition:background var(--t-state) var(--ease),color var(--t-state) var(--ease)}
button,input,textarea,output{font:inherit;color:inherit}
button{cursor:pointer}
:focus{outline:none}
:focus-visible{box-shadow:0 0 0 3px var(--blue-soft),0 0 0 1.5px var(--blue);border-radius:var(--r-row)}
::selection{background:var(--blue-soft)}
kbd{font-family:var(--font);font-size:11px;font-weight:600;color:var(--muted);background:var(--fill-2);border-radius:var(--r-xs);padding:2px 6px}
.kbd-invert{background:rgba(255,255,255,.22);color:inherit}
[data-theme="light"] .kbd-invert{background:rgba(255,255,255,.22);color:#fff}

/* ---------- Layout ---------- */
.app{display:grid;grid-template-columns:264px minmax(0,1fr);min-height:100vh;transition:grid-template-columns 320ms var(--spring-soft)}
.app.is-collapsed{grid-template-columns:76px minmax(0,1fr)}
.main{padding:32px 36px 48px;max-width:1060px;width:100%;margin:0 auto;min-width:0}
.main-foot{margin-top:28px;font-size:12px;color:var(--muted-2)}

/* ---------- Sidebar ---------- */
.sidebar{position:sticky;top:0;height:100vh;display:flex;flex-direction:column;gap:14px;padding:20px 14px;background:var(--card);border-right:1px solid var(--line);overflow:hidden;transition:background var(--t-state) var(--ease)}
.side-top{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:0 6px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);font-weight:800;font-size:19px;letter-spacing:-.02em;white-space:nowrap}
.brand-mark{width:32px;height:32px;flex-shrink:0;border-radius:10px;background:var(--inverse);color:var(--on-inverse);display:grid;place-items:center}
.collapse-btn{flex-shrink:0}
.app.is-collapsed .collapse-btn svg{transform:rotate(180deg)}
.collapse-btn svg{transition:transform var(--t-pop) var(--spring)}
.app.is-collapsed .side-label{display:none}
.btn-new{width:100%;justify-content:flex-start}
.side-nav{position:relative;display:flex;flex-direction:column;gap:2px}
.tab-thumb{position:absolute;left:0;right:0;top:0;height:44px;border-radius:var(--r-row);background:var(--fill-2);opacity:0;will-change:transform}
.nav-item{position:relative;z-index:1;display:flex;align-items:center;gap:11px;min-height:44px;padding:0 12px;border-radius:var(--r-row);color:var(--text-2);text-decoration:none;font-weight:500;white-space:nowrap;transition:color var(--t-hover) var(--ease),transform var(--t-press) ease-out}
.nav-item:hover{color:var(--text)}
.nav-item:active{transform:scale(.98)}
.nav-item.is-active{color:var(--text);font-weight:600}
.nav-item svg{flex-shrink:0}
.nav-count{margin-left:auto;font-size:12px;font-weight:600;color:var(--muted);background:var(--fill-2);border-radius:var(--r-pill);padding:1px 8px;font-variant-numeric:tabular-nums}
.side-section{padding:6px 12px 0;font-size:12px;font-weight:700;letter-spacing:.06em;color:var(--muted-2);text-transform:uppercase;white-space:nowrap}
.side-projects{display:flex;flex-direction:column;gap:2px}
.project-item{display:flex;align-items:center;gap:11px;min-height:40px;padding:0 12px;border-radius:var(--r-row);color:var(--text-2);text-decoration:none;font-weight:500;white-space:nowrap;transition:background var(--t-hover) var(--ease),color var(--t-hover) var(--ease)}
.project-item:hover{background:var(--fill-1);color:var(--text)}
.project-item.is-active{background:var(--fill-2);color:var(--text);font-weight:600}
.project-item .nav-count{margin-left:auto}
.p-dot{width:9px;height:9px;border-radius:50%;flex-shrink:0}
.project-form{display:flex;gap:6px;align-items:center;padding:0 4px}
.project-input{flex:1;min-width:0;height:40px;padding:0 10px;border:1.5px solid transparent;border-radius:var(--r-row);background:var(--fill-1);font-size:13px;appearance:none;-webkit-appearance:none;transition:border-color var(--t-state) var(--ease),background var(--t-state) var(--ease)}
.project-input:focus{background:var(--surface);border-color:var(--blue)}
.side-foot{margin-top:auto;display:flex;flex-direction:column;gap:2px;border-top:1px solid var(--line);padding-top:12px}

/* ---------- Switch (Toggle switch) ---------- */
.native-check{position:absolute;opacity:0;width:44px;height:44px;margin:-6px;cursor:pointer;appearance:none;-webkit-appearance:none}
.switch-row{position:relative;display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:44px;padding:0 8px;font-size:13.5px;font-weight:500;cursor:pointer;white-space:nowrap}
.switch-text{display:inline-flex;align-items:center;gap:8px}
.switch{position:relative;display:inline-flex;flex-shrink:0}
.switch .native-check{width:52px;height:32px;margin:0;z-index:1}
.track{width:52px;height:32px;border-radius:var(--r-pill);background:var(--fill-3);display:block;position:relative;transition:background var(--t-state) var(--ease)}
.knob{position:absolute;top:3px;left:3px;width:26px;height:26px;border-radius:var(--r-pill);background:var(--surface);box-shadow:0 1px 4px rgba(0,0,0,.22);transition:transform var(--t-state) var(--spring),width var(--t-hover) var(--ease)}
.switch:active .knob{width:34px}
.switch-input:checked ~ .track{background:var(--inverse)}
.switch-input:checked ~ .track .knob{transform:translateX(20px);background:var(--on-inverse)}
.switch:active .switch-input:checked ~ .track .knob{transform:translateX(12px)}
.switch-input:focus-visible ~ .track{box-shadow:0 0 0 3px var(--blue-soft),0 0 0 1.5px var(--blue)}

/* ---------- Buttons (Magnetic button / Loading to success) ---------- */
.btn{position:relative;overflow:hidden;isolation:isolate;border:0;min-height:46px;padding:0 20px;border-radius:var(--r-row);font-weight:600;font-size:14.5px;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:background var(--t-hover) var(--ease),color var(--t-hover) var(--ease),transform var(--t-press) ease-out;user-select:none;-webkit-tap-highlight-color:transparent;will-change:transform}
.btn:active{transform:scale(.97)}
.btn-primary{background:var(--inverse);color:var(--on-inverse)}
.btn-primary:hover{opacity:.92}
.btn-ghost{background:transparent;color:var(--text-2)}
.btn-ghost:hover{background:var(--fill-2);color:var(--text)}
.btn-danger{background:transparent;color:var(--red)}
.btn-danger:hover{background:var(--red-soft)}
.btn-sm{min-height:40px;padding:0 14px;font-size:13.5px}
.btn .btn-check{position:absolute;inset:0;display:grid;place-items:center;opacity:0;transform:scale(.6);transition:opacity var(--t-state) var(--ease),transform var(--t-pop) var(--spring)}
.btn.is-loading .btn-label,.btn.is-done .btn-label{opacity:0}
.btn.is-loading{pointer-events:none}
.btn.is-loading::after{content:"";width:19px;height:19px;border-radius:50%;border:2.5px solid var(--fill-3);border-top-color:var(--on-inverse);position:absolute;animation:spin .7s linear infinite}
.btn.is-done .btn-check{opacity:1;transform:scale(1)}
.btn.is-done{background:var(--green);color:var(--on-green);pointer-events:none}
@keyframes spin{to{transform:rotate(360deg)}}
.icon-btn{position:relative;overflow:hidden;width:40px;height:40px;border-radius:50%;border:0;background:transparent;color:var(--muted);display:grid;place-items:center;transition:background var(--t-hover) var(--ease),color var(--t-hover) var(--ease),transform var(--t-press) ease-out}
.icon-btn:hover{background:var(--fill-2);color:var(--text)}
.icon-btn:active{transform:scale(.92)}
.ripple{position:absolute;border-radius:50%;background:currentColor;opacity:.16;transform:scale(0);pointer-events:none;animation:ripple 600ms var(--ease) forwards}
@keyframes ripple{to{transform:scale(1);opacity:0}}

/* ---------- Header ---------- */
.main-head{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:22px}
.head-date{margin:0;font-size:13px;font-weight:600;color:var(--muted);letter-spacing:.02em}
.head-title{margin:2px 0 0;font-size:40px;line-height:1.15;letter-spacing:-.03em;font-weight:800}
.head-sub{margin:6px 0 0;color:var(--muted);font-size:14px}
.head-actions{display:flex;gap:8px;align-items:center;flex-shrink:0;padding-top:8px}
.palette-open{display:inline-flex;align-items:center;gap:9px;min-height:44px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-pill);background:var(--surface);color:var(--muted);font-weight:500;font-size:13.5px;position:relative;overflow:hidden;transition:border-color var(--t-hover) var(--ease),color var(--t-hover) var(--ease),transform var(--t-press) ease-out}
.palette-open:hover{color:var(--text);border-color:var(--muted-2)}
.palette-open:active{transform:scale(.97)}
.theme-btn{border:1px solid var(--line);background:var(--surface);color:var(--text)}
[data-theme="light"] .theme-btn .ic-moon{display:none}
[data-theme="dark"] .theme-btn .ic-sun{display:none}

/* ---------- Stat cards ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:12px}
.stat-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-sheet);padding:16px 18px;transition:background var(--t-state) var(--ease),transform var(--t-hover) var(--ease)}
.stat-card:hover{transform:translateY(-2px)}
.stat-label{margin:0;font-size:12.5px;font-weight:600;color:var(--muted)}
.stat-num{margin:2px 0 0;font-size:32px;font-weight:800;letter-spacing:-.02em;line-height:1.2;font-variant-numeric:tabular-nums}
.stat-num small{font-size:14px;font-weight:600;color:var(--muted);margin-left:3px}
.stat-num.bump{animation:pop var(--t-pop) var(--spring)}
.stat-foot{margin:2px 0 0;font-size:12px;color:var(--muted-2)}
@keyframes pop{0%{transform:scale(.82)}55%{transform:scale(1.1)}100%{transform:scale(1)}}

/* ---------- Step progress ---------- */
.steps-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-sheet);padding:16px 20px 12px;margin-bottom:12px}
.steps-head{display:flex;justify-content:space-between;font-size:13px;font-weight:600;color:var(--muted);margin-bottom:12px}
.steps-now{color:var(--text)}
.steps{position:relative;list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(5,1fr)}
.steps-line{position:absolute;left:10%;right:10%;top:13px;height:4px;border-radius:var(--r-pill);background:var(--fill-3);overflow:hidden}
.steps-fill{display:block;height:100%;width:0;border-radius:var(--r-pill);background:var(--green);transition:width 500ms var(--spring-soft)}
.step{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;gap:6px}
.step-dot{width:26px;height:26px;border-radius:50%;background:var(--surface);border:2px solid var(--fill-3);display:grid;place-items:center;transition:background var(--t-state) var(--ease),border-color var(--t-state) var(--ease),transform var(--t-pop) var(--spring)}
.step-dot svg{width:11px;height:9px;fill:none;stroke:var(--on-green);stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
.step-dot svg path{stroke-dasharray:20;stroke-dashoffset:20;transition:stroke-dashoffset 220ms var(--ease) 60ms}
.step.is-done .step-dot{background:var(--green);border-color:var(--green);animation:pop var(--t-pop) var(--spring)}
.step.is-done .step-dot svg path{stroke-dashoffset:0}
.step-name{font-size:12px;font-weight:600;color:var(--muted-2)}
.step.is-done .step-name{color:var(--text)}

/* ---------- Composer ---------- */
.composer{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:20px;margin-bottom:16px;transition:background var(--t-state) var(--ease)}
.springy{position:relative}
.springy-input{width:100%;min-height:54px;padding:0 16px;border:1.5px solid transparent;border-radius:var(--r-panel);background:var(--fill-1);font-size:16.5px;font-weight:500;appearance:none;-webkit-appearance:none;transition:transform var(--t-pop) var(--spring),background var(--t-state) var(--ease),border-color var(--t-state) var(--ease)}
.springy-input::placeholder{color:var(--muted-2)}
.springy-input:hover{border-color:var(--line)}
.springy.is-focused .springy-input{background:var(--surface);border-color:var(--blue);transform:scale(1.008)}
.springy-ring{position:absolute;inset:0;border-radius:var(--r-panel);pointer-events:none;box-shadow:0 0 0 0 var(--blue-soft);transition:box-shadow var(--t-state) var(--ease)}
.springy.is-focused .springy-ring{box-shadow:0 0 0 4px var(--blue-soft)}
.composer-grid{display:grid;grid-template-columns:1fr 1fr 1fr auto;gap:14px;margin-top:16px}
.mini-label{display:block;font-size:13px;font-weight:600;margin-bottom:7px;color:var(--text-2)}
.letter-count{float:right;font-weight:500;color:var(--muted);font-variant-numeric:tabular-nums}
.letter-count.is-warn{color:var(--orange-text);font-weight:700}
.letter-count.is-over{color:var(--red);font-weight:700}
.date-input{width:100%;height:48px;padding:0 12px;border:1.5px solid transparent;border-radius:var(--r-row);background:var(--fill-1);font-size:14.5px;appearance:none;-webkit-appearance:none;transition:border-color var(--t-state) var(--ease),background var(--t-state) var(--ease)}
.date-input:focus{background:var(--surface);border-color:var(--blue)}
.memo-input{width:100%;padding:11px 13px;border:1.5px solid transparent;border-radius:var(--r-row);background:var(--fill-1);font-size:14.5px;line-height:1.6;resize:vertical;appearance:none;-webkit-appearance:none;transition:border-color var(--t-state) var(--ease),background var(--t-state) var(--ease)}
.memo-input:focus{background:var(--surface);border-color:var(--blue)}
.letter-bar{display:block;height:4px;border-radius:var(--r-pill);background:var(--fill-2);overflow:hidden;margin-top:6px}
.letter-bar span{display:block;height:100%;width:0;background:var(--blue);border-radius:var(--r-pill);transition:width 200ms var(--ease),background var(--t-hover) var(--ease)}
.tag-wrap{margin-top:14px}
.composer .cg-item:has(.memo-input){margin-top:14px}
.composer-foot{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:16px}
.composer-hint{margin:0;font-size:12.5px;color:var(--muted-2)}

/* ---------- Custom select (Spring dropdown) ---------- */
.select{position:relative}
.select-btn{width:100%;min-height:48px;padding:0 13px;display:flex;align-items:center;gap:8px;background:var(--fill-1);border:1.5px solid transparent;border-radius:var(--r-row);font-size:14.5px;font-weight:500;text-align:left;transition:border-color var(--t-state) var(--ease),background var(--t-state) var(--ease),transform var(--t-press) ease-out}
.select-btn:hover{border-color:var(--line)}
.select-btn:active{transform:scale(.99)}
.select-btn-sm{min-height:44px;font-size:13.5px}
.select-btn span:nth-child(2){flex:1}
.select.is-open .select-btn{background:var(--surface);border-color:var(--blue)}
.chev{color:var(--muted);transition:transform var(--t-state) var(--spring);flex-shrink:0;margin-left:auto}
.select.is-open .chev{transform:rotate(180deg)}
.dot{width:9px;height:9px;border-radius:50%;flex-shrink:0}
.dot-high{background:var(--red)} .dot-normal{background:var(--blue)} .dot-low{background:var(--muted-2)}
.select-menu{position:absolute;left:0;right:0;top:calc(100% + 7px);z-index:60;margin:0;padding:6px;list-style:none;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-panel);box-shadow:0 14px 38px rgba(0,0,0,.16);opacity:0;transform:translateY(-5px) scale(.97);transform-origin:top center;pointer-events:none;transition:opacity var(--t-state) var(--ease),transform var(--t-pop) var(--spring-soft);max-height:250px;overflow:auto;min-width:170px}
.select.is-open .select-menu{opacity:1;transform:translateY(0) scale(1);pointer-events:auto}
.select-menu li{position:relative;display:flex;align-items:center;gap:8px;padding:10px 30px 10px 11px;border-radius:var(--r-row);cursor:pointer;font-size:14px;transition:background var(--t-hover) var(--ease)}
.select.is-open .select-menu li{animation:item-in var(--t-state) var(--ease) both;animation-delay:calc(var(--i,0)*30ms)}
@keyframes item-in{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}
.select-menu li:hover,.select-menu li.is-highlighted{background:var(--fill-1)}
.select-menu li.is-selected{font-weight:600;background:var(--fill-2)}
.select-menu li.is-selected::after{content:"";position:absolute;right:13px;top:50%;width:10px;height:6px;border-left:2.4px solid var(--text);border-bottom:2.4px solid var(--text);transform:translateY(-70%) rotate(-45deg)}

/* ---------- Stepper (Number stepper) ---------- */
.stepper{display:inline-flex;align-items:center;gap:4px;background:var(--fill-1);border-radius:var(--r-pill);padding:4px;height:48px}
.step-btn{width:40px;height:40px;border-radius:50%;border:0;background:var(--surface);font-size:19px;font-weight:600;display:grid;place-items:center;box-shadow:0 1px 4px rgba(0,0,0,.10);transition:transform var(--t-press) ease-out,background var(--t-hover) var(--ease)}
.step-btn:hover{background:var(--fill-2)}
.step-btn:active{transform:scale(.88)}
.step-val{min-width:44px;text-align:center;font-size:17px;font-weight:700;font-variant-numeric:tabular-nums}
.step-val.bump{animation:pop var(--t-pop) var(--spring)}

/* ---------- Tag input ---------- */
.tag-input{display:flex;flex-wrap:wrap;align-items:center;gap:7px;min-height:48px;padding:7px 10px;border:1.5px solid transparent;border-radius:var(--r-row);background:var(--fill-1);transition:border-color var(--t-state) var(--ease),background var(--t-state) var(--ease);cursor:text}
.tag-input:focus-within{background:var(--surface);border-color:var(--blue)}
.tag-chips{display:contents}
.tag-chip{display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 7px 0 11px;border-radius:var(--r-pill);background:var(--fill-2);color:var(--text);font-size:13px;font-weight:600;animation:pop var(--t-pop) var(--spring)}
.tag-chip button{width:20px;height:20px;border:0;border-radius:50%;background:transparent;color:var(--muted);display:grid;place-items:center;font-size:14px;line-height:1;transition:background var(--t-hover) var(--ease),color var(--t-hover) var(--ease)}
.tag-chip button:hover{background:var(--fill-3);color:var(--text)}
.tag-field{flex:1;min-width:110px;height:32px;border:0;background:transparent;font-size:14.5px;appearance:none;-webkit-appearance:none}
.tag-field:focus{box-shadow:none}

/* ---------- Toolbar / Segmented ---------- */
.toolbar{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:12px;flex-wrap:wrap}
.segmented{position:relative;display:inline-flex;background:var(--fill-2);border-radius:var(--r-pill);padding:4px}
.seg-thumb{position:absolute;top:4px;left:0;height:calc(100% - 8px);background:var(--surface);border-radius:var(--r-pill);box-shadow:0 1px 5px rgba(0,0,0,.13);will-change:transform,width}
.seg-btn{position:relative;z-index:1;border:0;background:transparent;min-height:38px;padding:0 18px;border-radius:var(--r-pill);font-weight:600;font-size:13.5px;color:var(--muted);transition:color var(--t-state) var(--ease),transform var(--t-press) ease-out}
.seg-btn:active{transform:scale(.96)}
.seg-btn.is-active{color:var(--text)}
.toolbar-right{display:flex;align-items:center;gap:8px}
.select-sort .select-menu{left:auto;right:0}

/* ---------- Task list (Checkbox list / Expand card) ---------- */
.list-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden}
.task-list{list-style:none;margin:0;padding:6px}
.task{border-radius:var(--r-panel);transition:background var(--t-hover) var(--ease)}
.task:hover{background:var(--fill-1)}
.task.is-open{background:var(--fill-1)}
.task + .task{margin-top:2px}
.task-row{display:flex;align-items:center;gap:6px;padding:8px 10px 8px 6px;min-height:58px}
.check{position:relative;display:grid;place-items:center;width:44px;height:44px;flex-shrink:0;cursor:pointer;-webkit-tap-highlight-color:transparent}
.check .box{width:23px;height:23px;border-radius:7px;background:var(--surface);border:2px solid var(--fill-3);display:grid;place-items:center;transition:background var(--t-state) var(--ease),border-color var(--t-state) var(--ease)}
.check .box svg{width:12px;height:10px;fill:none;stroke:var(--on-green);stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
.check .box svg path{stroke-dasharray:20;stroke-dashoffset:20;transition:stroke-dashoffset 200ms var(--ease) 60ms}
.check:hover .box{border-color:var(--green)}
.task-check:checked ~ .box{background:var(--green);border-color:var(--green);animation:pop var(--t-pop) var(--spring)}
.task-check:checked ~ .box svg path{stroke-dashoffset:0}
.task-check:focus-visible ~ .box{box-shadow:0 0 0 3px var(--green-soft),0 0 0 1.5px var(--green)}
.task-main{flex:1;min-width:0;border:0;background:transparent;text-align:left;padding:6px 4px;display:flex;flex-direction:column;gap:1px}
.task-title{font-size:15.5px;font-weight:500;letter-spacing:-.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:color var(--t-hover) var(--ease)}
.task.is-done .task-title{color:var(--muted);text-decoration:line-through;text-decoration-thickness:1.5px}
.task-meta{display:flex;flex-wrap:wrap;gap:5px 10px;font-size:12.5px;color:var(--muted)}
.task-meta .m{display:inline-flex;align-items:center;gap:5px}
.task-meta .m-due.is-overdue{color:var(--red);font-weight:700}
.task-meta .m-due.is-today{color:var(--orange-text);font-weight:700}
.meta-tag{background:var(--fill-2);border-radius:var(--r-pill);padding:0 8px;font-size:11.5px;font-weight:600;color:var(--chip-text)}
.task-progress-num{font-size:12.5px;font-weight:700;color:var(--muted);font-variant-numeric:tabular-nums;min-width:38px;text-align:right}
.task-progress-num.is-full{color:var(--green-text)}
.task-chev{color:var(--muted-2);display:grid;place-items:center;width:30px;height:30px;transition:transform var(--t-state) var(--spring)}
.task.is-open .task-chev{transform:rotate(180deg)}
.task-detail{padding:4px 18px 18px 60px;animation:detail-in 300ms var(--spring-soft)}
@keyframes detail-in{from{opacity:0;transform:translateY(-6px) scale(.995)}to{opacity:1;transform:translateY(0) scale(1)}}
.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:14px}
.detail-note{margin:6px 0 0;font-size:12px;color:var(--muted-2)}
.detail-progress-val{font-weight:700;color:var(--text)}
.range-wrap{position:relative;padding-top:30px}
.range-bubble{position:absolute;top:0;transform:translateX(-50%);background:var(--inverse);color:var(--on-inverse);font-size:11.5px;font-weight:700;padding:2px 8px;border-radius:var(--r-pill);pointer-events:none;white-space:nowrap;transition:left 90ms linear}
.range{-webkit-appearance:none;appearance:none;width:100%;height:36px;background:transparent;cursor:pointer;margin:0;--fill:0%}
.range::-webkit-slider-runnable-track{height:7px;border-radius:var(--r-pill);background:linear-gradient(90deg,var(--green) var(--fill),var(--fill-3) var(--fill))}
.range::-webkit-slider-thumb{-webkit-appearance:none;width:24px;height:24px;margin-top:-8.5px;border-radius:50%;background:var(--surface);border:2.5px solid var(--green);box-shadow:0 1px 5px rgba(0,0,0,.18);transition:transform var(--t-state) var(--spring)}
.range:active::-webkit-slider-thumb{transform:scale(1.28)}
.range::-moz-range-track{height:7px;border-radius:var(--r-pill);background:var(--fill-3)}
.range::-moz-range-progress{height:7px;border-radius:var(--r-pill);background:var(--green)}
.range::-moz-range-thumb{width:20px;height:20px;border-radius:50%;background:var(--surface);border:2.5px solid var(--green)}
.sub-list{list-style:none;margin:0 0 8px;padding:0;display:flex;flex-direction:column}
.sub-item{display:flex;align-items:center;gap:4px;min-height:38px;font-size:14px}
.sub-item .check{width:36px;height:36px}
.sub-item .check .box{width:20px;height:20px;border-radius:6px}
.sub-item.is-done .sub-text{color:var(--muted);text-decoration:line-through}
.sub-text{flex:1}
.sub-del{width:30px;height:30px;font-size:15px}
.sub-input{width:100%;height:40px;padding:0 11px;border:1.5px solid transparent;border-radius:var(--r-row);background:var(--fill-1);font-size:14px;appearance:none;-webkit-appearance:none;transition:border-color var(--t-state) var(--ease),background var(--t-state) var(--ease)}
.sub-input:focus{background:var(--surface);border-color:var(--blue)}
.detail-actions{display:flex;justify-content:flex-end;gap:6px;margin-top:12px}
.task.is-leaving{animation:leave 260ms var(--ease) forwards}
@keyframes leave{to{opacity:0;transform:translateX(14px) scale(.98)}}
.task.is-entering{animation:detail-in 320ms var(--spring-soft)}

/* ---------- Empty ---------- */
.empty{padding:52px 20px 58px;text-align:center}
.empty-mark{width:54px;height:54px;margin:0 auto 12px;border-radius:50%;background:var(--green-soft);color:var(--green-text);display:grid;place-items:center}
.empty-title{margin:0;font-size:17px;font-weight:700}
.empty-sub{margin:4px 0 0;color:var(--muted);font-size:13.5px}

/* ---------- Command palette ---------- */
.palette-backdrop{position:fixed;inset:0;z-index:200;background:rgba(10,10,12,.42);backdrop-filter:blur(6px);display:grid;justify-items:center;align-items:start;padding:12vh 16px 16px}
.palette-backdrop[hidden]{display:none}
.palette{width:min(620px,100%);background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sheet);box-shadow:0 24px 60px rgba(0,0,0,.28);overflow:hidden;animation:palette-in 320ms var(--spring-soft)}
@keyframes palette-in{from{opacity:0;transform:translateY(-10px) scale(.97)}to{opacity:1;transform:translateY(0) scale(1)}}
.palette-input-row{display:flex;align-items:center;gap:11px;padding:15px 16px;border-bottom:1px solid var(--line);color:var(--muted)}
.palette-input{flex:1;border:0;background:transparent;font-size:16.5px;appearance:none;-webkit-appearance:none}
.palette-input:focus{box-shadow:none}
.palette-list{list-style:none;margin:0;padding:7px;max-height:46vh;overflow:auto}
.palette-item{display:flex;align-items:center;gap:11px;padding:11px 12px;border-radius:var(--r-row);cursor:pointer;font-size:14.5px}
.palette-item .p-kind{font-size:11px;font-weight:700;letter-spacing:.04em;color:var(--muted);background:var(--fill-2);border-radius:var(--r-pill);padding:2px 8px;flex-shrink:0}
.palette-item .p-title{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.palette-item.is-active{background:var(--fill-2)}
.palette-item.is-done .p-title{color:var(--muted);text-decoration:line-through}
.palette-empty{padding:22px;text-align:center;color:var(--muted);font-size:14px}

/* ---------- Toast ---------- */
.toast-region{position:fixed;left:50%;bottom:26px;transform:translateX(-50%);z-index:300;display:flex;flex-direction:column;gap:8px;align-items:center}
.toast{display:flex;align-items:center;gap:11px;background:var(--inverse);color:var(--on-inverse);font-size:14px;font-weight:600;padding:12px 18px;border-radius:var(--r-pill);box-shadow:0 14px 34px rgba(0,0,0,.22);opacity:0;transform:translateY(14px) scale(.96);transition:opacity var(--t-state) var(--ease),transform var(--t-pop) var(--spring)}
.toast.show{opacity:1;transform:translateY(0) scale(1)}
.toast .ok{width:20px;height:20px;border-radius:50%;background:var(--green);color:var(--on-green);display:grid;place-items:center;flex-shrink:0}
.toast button{border:0;background:transparent;color:inherit;font-weight:700;text-decoration:underline;text-underline-offset:3px;padding:2px 4px}

/* ---------- Responsive / Motion ---------- */
@media (max-width:980px){
  .stats{grid-template-columns:1fr 1fr}
  .composer-grid{grid-template-columns:1fr 1fr}
  .detail-grid{grid-template-columns:1fr}
}
@media (max-width:720px){
  .app{grid-template-columns:1fr}
  .sidebar{position:static;height:auto;flex-direction:column}
  .app.is-collapsed{grid-template-columns:1fr}
  .app.is-collapsed .side-label{display:initial}
  .main{padding:22px 16px 40px}
  .head-title{font-size:32px}
  .task-detail{padding-left:18px}
  .main-head{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
}

/* ============================================================
   Motion fidelity layer — 本家 Motion Studies の挙動に合わせた上書き
   動きは原則 JS spring engine が毎フレーム駆動する。CSS transition で
   代用していた箇所はここで無効化し、JS の値だけが効くようにする。
   ============================================================ */
.app{display:flex}
.sidebar{width:264px;flex:none}
.main{flex:1}
.app.is-collapsed .side-label{display:initial}
.collapse-btn svg{transition:none}
.knob{transition:none}
.steps-fill{transition:none}
.seg-thumb{transform-origin:center}
.side-label{will-change:opacity,transform}
.nav-item,.project-item{overflow:hidden}

/* ---------- Spring Dropdown (本家移植) ---------- */
.select{position:relative}
.trig{position:relative;width:100%;min-height:48px;display:flex;align-items:center;gap:10px;padding:0 12px 0 14px;border:1.5px solid transparent;border-radius:16px;background:var(--fill-1);color:var(--text);font-size:14.5px;text-align:left;cursor:pointer;will-change:transform;-webkit-tap-highlight-color:transparent;transition:border-color var(--t-state) var(--ease),background var(--t-state) var(--ease)}
.trig:hover{border-color:var(--line)}
.trig:focus-visible{box-shadow:0 0 0 3px var(--blue-soft),0 0 0 1.5px var(--blue)}
.trig-sm{min-height:44px;font-size:13.5px;border-radius:14px}
.select.is-open .trig{background:var(--surface);border-color:var(--blue)}
.trig .val{position:relative;flex:1;height:48px;overflow:hidden}
.trig-sm .val{height:44px}
.trig .slot{position:absolute;inset:0;display:flex;align-items:center;gap:9px;will-change:transform,opacity}
.trig .slot b{font-size:14.5px;font-weight:500;letter-spacing:-.01em;white-space:nowrap}
.trig-sm .slot b{font-size:13.5px}
.trig .chev{flex:none;color:var(--muted);will-change:transform;margin-left:0}
.menu{position:absolute;left:0;top:calc(100% + 8px);width:100%;height:0;padding:6px;border-radius:18px;overflow:hidden;background:var(--surface);border:1px solid var(--line);box-shadow:0 14px 38px rgba(0,0,0,.16);transform-origin:50% 0;visibility:hidden;z-index:60;will-change:transform,height,opacity;min-width:180px}
.select-sort .menu{left:auto;right:0}
.opt{position:relative;z-index:1;display:flex;align-items:center;gap:10px;height:44px;padding:0 10px 0 12px;border-radius:12px;color:var(--text);cursor:pointer;opacity:0;will-change:transform,opacity}
.opt b{flex:1;font-size:14.5px;font-weight:500;letter-spacing:-.01em;white-space:nowrap}
.opt[aria-selected="true"] b{font-weight:600}
.opt .tick{flex:none;width:18px;height:18px;color:var(--text)}
.opt .tick path{stroke-dasharray:22;stroke-dashoffset:22}
.menu .hl{position:absolute;left:6px;right:6px;top:0;border-radius:12px;background:var(--fill-2);opacity:0;pointer-events:none;will-change:transform,height,opacity}

/* ---------- Checkbox strike (本家: 線が左から走る) ---------- */
.title-wrap{position:relative;display:inline-block;max-width:100%;vertical-align:top}
.title-wrap .task-title{display:block}
.strike{position:absolute;left:0;top:55%;height:2px;width:0;border-radius:2px;background:var(--muted);pointer-events:none}
.task.is-done .task-title{text-decoration:none}
.sub-item .sub-text{position:relative}
.check .box{will-change:transform}

/* ---------- Springy Input mirror / caret (本家移植) ---------- */
.springy-input{color:transparent;caret-color:transparent}
.springy-input::placeholder{color:var(--muted-2)}
.mirror{position:absolute;inset:0;display:none;align-items:center;padding:0 16px;pointer-events:none;overflow:hidden}
.springy.is-focused .mirror,.springy.has-text .mirror{display:flex}
.springy:not(.is-focused):not(.has-text) .mirror{display:none}
.mirror-text{position:relative;font-size:16.5px;font-weight:500;letter-spacing:normal;white-space:pre}
.mirror-text .ch{display:inline-block;will-change:transform,opacity}
.mirror-text .ch.char-in{animation:char-in 340ms var(--spring)}
@keyframes char-in{0%{transform:translateY(9px) scale(.6);opacity:0}60%{transform:translateY(-2px) scale(1.08);opacity:1}100%{transform:translateY(0) scale(1);opacity:1}}
.mirror-text .ch.char-out{position:absolute;animation:char-out 380ms var(--ease) forwards}
@keyframes char-out{to{transform:translateY(-16px) scale(.7);opacity:0}}
.caret{position:absolute;left:0;top:50%;width:2.5px;height:24px;margin-top:-12px;border-radius:2px;background:var(--blue);opacity:0;will-change:transform;transform-origin:center}
.springy.is-focused .caret{opacity:1}
.springy .placeholder-hint{position:absolute;inset:0;display:flex;align-items:center;padding:0 16px;color:var(--muted-2);font-size:16.5px;pointer-events:none}
.springy.is-shaking{animation:field-shake 340ms var(--ease)}
@keyframes field-shake{0%,100%{transform:translateX(0)}20%{transform:translateX(-7px)}45%{transform:translateX(6px)}70%{transform:translateX(-4px)}88%{transform:translateX(2px)}}
.mirror-text .ch.wave{animation:char-wave 380ms var(--ease)}
@keyframes char-wave{0%,100%{transform:translateY(0)}35%{transform:translateY(-6px)}70%{transform:translateY(3px)}}

/* ---------- Number stepper roll (本家移植) ---------- */
.step-roll{position:relative;display:inline-block;min-width:44px;height:28px;overflow:hidden;vertical-align:middle}
.roll-a,.roll-b{position:absolute;inset:0;display:grid;place-items:center;font-size:17px;font-weight:700;font-variant-numeric:tabular-nums;will-change:transform,opacity}
.step-btn{will-change:transform}

/* ---------- Palette highlight / rows (本家: hl spring + rows spring) ---------- */
.palette-list-wrap{position:relative}
.palette-list{position:relative;z-index:1}
.palette-hl{position:absolute;left:7px;right:7px;top:0;height:45px;border-radius:var(--r-row);background:var(--fill-2);opacity:0;pointer-events:none;will-change:transform,opacity}
.palette-item{background:transparent;will-change:transform,opacity}
.palette-item.is-active{background:transparent}

/* ---------- Thrown letters (Letter limit 本家) ---------- */
.composer{position:relative}
.thrown-letter{position:absolute;z-index:5;font-size:15px;font-weight:600;color:var(--text-2);pointer-events:none;will-change:transform,opacity}
.memo-shake{animation:field-shake 300ms var(--ease)}

/* ---------- Misc spring-driven ---------- */
.tag-chip{will-change:transform,opacity,width;overflow:hidden;white-space:nowrap}
.task-detail{will-change:height,opacity;overflow:hidden}
.range-bubble{will-change:transform,left}
.stat-num{font-variant-numeric:tabular-nums}
.magnetic{will-change:transform}
.mag-label{display:inline-block;will-change:transform}
.btn.is-done .btn-check svg path{stroke-dasharray:24;stroke-dashoffset:24}
.tab-thumb{height:auto}
.palette{animation:none}
.task-detail{animation:none}
.tag-chip{animation:none}
.task-list .task{transition:background var(--t-hover) var(--ease),opacity var(--t-state) var(--ease)}