/* SensKit — 「校正シート」の見た目。方眼紙・目盛り・計器の数字 */
@font-face{font-family:"Poppins";font-weight:500;font-style:normal;font-display:swap;src:url(fonts/poppins-Medium.woff) format("woff")}
@font-face{font-family:"Poppins";font-weight:700;font-style:normal;font-display:swap;src:url(fonts/poppins-Bold.woff) format("woff")}
:root{
  --bg:#EDEFF3; --surface:#FFFFFF; --surface2:#F3F5F9; --ink:#0E1320; --muted:#586174;
  --line:#D6DBE4; --line2:#BCC4D2; --accent:#2F50F5; --accent-soft:rgba(47,80,245,.10); --on-accent:#FFFFFF;
  --warn:#B45309; --grid:rgba(14,19,32,.055);
  --primary:var(--accent); --dark:var(--bg); --light:var(--ink); --panel:var(--surface); --panel2:var(--surface2);
  --ease:cubic-bezier(.2,.7,.2,1);
  --f-head:"Poppins","Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic UI","Meiryo","Noto Sans JP",sans-serif;
  --f-body:"Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic UI","Meiryo","Noto Sans JP",system-ui,sans-serif;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#0A0E18; --surface:#121827; --surface2:#182034; --ink:#E8ECF5; --muted:#9AA3B8;
  --line:#242E45; --line2:#36435F; --accent:#7F95FF; --accent-soft:rgba(127,149,255,.14); --on-accent:#0A0E18;
  --warn:#FBBF24; --grid:rgba(232,236,245,.05); color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#0A0E18; --surface:#121827; --surface2:#182034; --ink:#E8ECF5; --muted:#9AA3B8;
  --line:#242E45; --line2:#36435F; --accent:#7F95FF; --accent-soft:rgba(127,149,255,.14); --on-accent:#0A0E18;
  --warn:#FBBF24; --grid:rgba(232,236,245,.05); color-scheme:dark}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;color:var(--ink);font-family:var(--f-body);line-height:1.75;
  background-color:var(--bg);
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:28px 28px;background-attachment:fixed}
a{color:var(--accent)}
.wrap{max-width:1000px;margin:0 auto;padding:0 16px}
h1,h2,h3{font-family:var(--f-head)}
/* ---- ヘッダー ---- */
.site-h{border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--surface) 86%,transparent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);position:sticky;top:0;z-index:20}
.hbar{display:flex;align-items:center;gap:16px;min-height:64px}
.logo{display:block;height:34px;flex:none}
.logo svg{height:100%;width:auto;display:block}
.l-s{stroke:var(--ink)} .l-f{fill:var(--ink)} .l-as{stroke:var(--accent)} .l-af{fill:var(--accent)}
.gnav{display:flex;gap:2px;overflow-x:auto;scrollbar-width:none;min-width:0;flex:1}
.gnav::-webkit-scrollbar{display:none}
.gnav a{display:flex;align-items:center;gap:6px;padding:8px 9px;border-radius:8px;color:var(--muted);text-decoration:none;font-size:14px;font-weight:600;white-space:nowrap;position:relative;transition:color .2s,background .2s}
.ico{width:17px;height:17px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:none}
.gnav a:hover{color:var(--ink);background:var(--surface2)}
.gnav a[aria-current=page]{color:var(--ink)}
.gnav a[aria-current=page] svg{color:var(--accent)}
.gnav a[aria-current=page]::after{content:"";position:absolute;left:9px;right:9px;bottom:-14px;height:3px;background:var(--accent);border-radius:3px 3px 0 0}
.theme{flex:none;width:36px;height:36px;border-radius:9px;border:1px solid var(--line);background:var(--surface);color:var(--ink);display:grid;place-items:center;cursor:pointer;transition:border-color .2s,transform .3s var(--ease)}
.theme:hover{border-color:var(--accent)}
.theme:active{transform:rotate(25deg)}
.theme .ico{width:18px;height:18px}
.theme .i-sun{display:none}
:root[data-theme="dark"] .theme .i-sun{display:block}
:root[data-theme="dark"] .theme .i-moon{display:none}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .theme .i-sun{display:block}:root:not([data-theme="light"]) .theme .i-moon{display:none}}
@media(max-width:900px){
  .hbar{flex-wrap:wrap;gap:0;padding-top:12px}
  .logo{margin-right:auto}
  .theme{order:2}
  .gnav{order:3;flex:none;width:calc(100% + 32px);margin:8px -16px 0;padding:0 16px 10px}
  .gnav a[aria-current=page]::after{bottom:0}
}
.m-spin,.m-cross,.m-dot,.m-ping{transform-origin:32px 32px}
.logo .m-spin{transition:transform .9s var(--ease)}
.logo:hover .m-spin{transform:rotate(180deg)}
.logo .m-dot{animation:dotpop .7s var(--ease) .15s both}
.logo .m-cross{animation:crossin .6s var(--ease) both}
@keyframes dotpop{0%{transform:scale(0)}60%{transform:scale(1.5)}100%{transform:scale(1)}}
@keyframes crossin{from{opacity:0;transform:scale(.7)}to{opacity:1;transform:scale(1)}}
/* ---- 見出し・ヒーロー ---- */
.hero2{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:center;padding:46px 0 22px}
@media(max-width:760px){.hero2{grid-template-columns:1fr;padding-top:24px}.hero2-art{order:-1;max-width:210px;margin:0 auto}}
.eyebrow{margin:0 0 12px;color:var(--accent);font-family:var(--f-head);font-size:12px;font-weight:700;letter-spacing:.2em}
.hero2 h1{margin:0 0 14px;font-size:clamp(28px,5.2vw,46px);line-height:1.28;letter-spacing:.005em}
.hero2 h1 em{font-style:normal;color:var(--accent)}
.hero2 p.lead{margin:0 0 22px;color:var(--muted);font-size:15px;max-width:34em}
.hero2-art{position:relative;justify-self:center;width:min(100%,330px);aspect-ratio:1}
.hero2-art svg{width:100%;height:100%;display:block;overflow:visible}
.d-tick{stroke:var(--line2)} .d-tick.maj{stroke:var(--ink)}
.d-label{fill:var(--muted);font-family:var(--f-head);font-weight:500;font-size:11px;text-anchor:middle;dominant-baseline:middle}
.d-track{fill:none;stroke:var(--line);stroke-width:1.5}
.d-sweep{fill:none;stroke:var(--accent);stroke-width:5;stroke-linecap:round;stroke-dasharray:660;stroke-dashoffset:660;transform:rotate(-90deg);transform-origin:160px 160px;animation:sweep 7s var(--ease) infinite}
.d-cross{stroke:var(--ink);stroke-width:6;stroke-linecap:round}
.d-dot{fill:var(--accent);transform-origin:160px 160px;animation:beat 2.4s ease-in-out infinite}
.d-ping{fill:none;stroke:var(--accent);stroke-width:1.5;vector-effect:non-scaling-stroke;transform-origin:160px 160px;animation:ping 2.6s ease-out infinite}
.d-ticks{transform-origin:160px 160px;animation:spin 90s linear infinite}
@keyframes sweep{0%{stroke-dashoffset:660}55%,85%{stroke-dashoffset:0}100%{stroke-dashoffset:-660}}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes ping{0%{transform:scale(1);opacity:.8}100%{transform:scale(6);opacity:0}}
@keyframes beat{0%,100%{transform:scale(1)}50%{transform:scale(1.2)}}
.cta{display:flex;gap:10px;flex-wrap:wrap}
.page-h{display:flex;align-items:center;gap:14px;padding:30px 0 8px}
.page-h .ti{width:46px;height:46px;border-radius:12px;background:var(--accent-soft);color:var(--accent);display:grid;place-items:center;flex:none}
.page-h .ti svg{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.page-h h1{margin:0;font-size:clamp(22px,4.4vw,30px);line-height:1.3}
.page-h p{margin:2px 0 0;color:var(--muted);font-size:14px}
.sec-h{margin:36px 0 0;font-size:14px;font-weight:700;display:flex;align-items:center;gap:12px;letter-spacing:.04em}
.sec-h::after{content:"";flex:1;height:9px;background:repeating-linear-gradient(90deg,var(--line2) 0 1px,transparent 1px 8px);-webkit-mask:linear-gradient(90deg,#000,transparent);mask:linear-gradient(90deg,#000,transparent)}
.sec-h + .tools-grid,.sec-h + .steps,.more .tools-grid{margin-top:12px}
/* ---- カード・フォーム ---- */
.card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:20px}
.card + .card{margin-top:16px}
h2{font-size:18px;margin:0 0 4px}
h2 + p{margin:0 0 14px;color:var(--muted);font-size:13px}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.grid.g3{grid-template-columns:repeat(3,1fr)}
@media(max-width:560px){.grid,.grid.g3{grid-template-columns:1fr}}
label{display:block;font-size:12px;color:var(--muted);margin-bottom:4px;font-weight:600}
input,select,textarea{width:100%;background:var(--surface2);color:var(--ink);border:1px solid var(--line);border-radius:8px;padding:11px 12px;font:inherit;font-size:16px;transition:border-color .2s,box-shadow .2s}
input:hover,select:hover,textarea:hover{border-color:var(--line2)}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
textarea{resize:vertical;min-height:72px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px;word-break:break-all}
.results{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin-top:16px}
.stat{position:relative;background:var(--surface2);border:1px solid var(--line);border-radius:8px;padding:13px 14px}
.stat::before{content:"";position:absolute;left:-1px;top:-1px;width:9px;height:9px;border-left:2px solid var(--accent);border-top:2px solid var(--accent);border-top-left-radius:8px}
.stat span{display:block;font-size:12px;color:var(--muted);font-weight:600}
.stat strong{font-family:var(--f-head);font-size:26px;line-height:1.3;color:var(--ink);font-weight:700;display:inline-block}
.stat strong em{font-style:normal;font-size:13px;color:var(--muted);margin-left:4px;font-weight:500}
.stat strong.pop{animation:pop .45s var(--ease)}
@keyframes pop{0%{transform:scale(1.1);color:var(--accent)}100%{transform:scale(1)}}
.tscroll{overflow-x:auto;margin-top:14px}
table{width:100%;border-collapse:collapse;font-size:15px}
th,td{padding:10px 8px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}
th{font-size:12px;color:var(--muted);font-weight:600}
td.num{font-family:var(--f-head);font-weight:500}
td small{color:var(--muted);font-weight:400;white-space:normal}
tr.me td{color:var(--accent);font-weight:700}
.note{font-size:12px;color:var(--muted);margin:12px 0 0}
.btn{background:var(--accent);color:var(--on-accent);border:1px solid var(--accent);border-radius:8px;padding:10px 16px;font:inherit;font-size:14px;font-weight:700;cursor:pointer;text-decoration:none;display:inline-block;transition:transform .15s var(--ease),box-shadow .2s,border-color .2s,background .2s}
a.btn{text-decoration:none}
.btn:hover{transform:translateY(-1px);box-shadow:0 6px 18px var(--accent-soft),0 2px 0 var(--accent)}
.btn.ghost{background:transparent;border:1px solid var(--line2);color:var(--ink)}
.btn.ghost:hover{border-color:var(--accent);color:var(--accent);box-shadow:none}
.btn.sm{padding:6px 10px;font-size:12px}
.btn:active{transform:translateY(1px)}
.btn:focus-visible,.chip:focus-visible,.gnav a:focus-visible,.theme:focus-visible,.tools-grid a:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.chips{display:flex;gap:6px;flex-wrap:wrap;margin:10px 0 0}
.chip{padding:6px 12px;border-radius:999px;border:1px solid var(--line2);background:transparent;color:var(--ink);font:inherit;font-size:13px;cursor:pointer;transition:background .2s,color .2s,border-color .2s}
.chip:hover{border-color:var(--accent)}
.chip[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
/* ---- クロスヘア ---- */
.builder{display:grid;grid-template-columns:200px 1fr;gap:18px;align-items:start}
@media(max-width:640px){.builder{grid-template-columns:1fr}}
.pv{position:sticky;top:76px}
@media(max-width:640px){.pv{position:static;display:flex;gap:14px;align-items:flex-start}}
.stage{position:relative;width:168px;height:168px;border-radius:10px;border:1px solid var(--line2);flex:none;overflow:hidden;
  background:linear-gradient(45deg,#2c3a2c 25%,transparent 25%,transparent 75%,#2c3a2c 75%),linear-gradient(45deg,#2c3a2c 25%,#3a4a3a 25%,#3a4a3a 75%,#2c3a2c 75%);
  background-size:24px 24px;background-position:0 0,12px 12px}
.stage.bg2{background:#d9dde2}.stage.bg3{background:#0f1a2b}.stage.bg4{background:#b9834f}
.stage.img{background-size:cover!important;background-position:center!important}
canvas{display:block;width:100%;height:100%;border-radius:10px}
.bgs{display:flex;gap:6px;margin-top:8px}
.bgs button,.sw{width:28px;height:28px;border-radius:50%;border:2px solid var(--line2);cursor:pointer;padding:0;flex:none;transition:transform .15s var(--ease)}
.bgs button:hover,.sw:hover{transform:scale(1.12)}
.sw[aria-pressed="true"]{border-color:var(--ink);box-shadow:0 0 0 2px var(--accent)}
.swrow{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.swrow input[type=color]{width:44px;height:32px;padding:2px;border-radius:8px}
fieldset{border:1px solid var(--line);border-radius:8px;margin:0 0 12px;padding:10px 12px 12px;min-width:0}
legend{font-size:13px;font-weight:700;padding:0 6px}
.ctl{display:grid;grid-template-columns:110px 1fr 44px;gap:10px;align-items:center;margin-top:8px}
.ctl label{margin:0}
.ctl output{font-family:var(--f-head);font-weight:500;font-size:14px;text-align:right}
input[type=range]{padding:0;height:28px;accent-color:var(--accent);background:transparent;border:0;box-shadow:none}
.sw-toggle{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink);margin:0;cursor:pointer}
.sw-toggle input,.chk-list input{accent-color:var(--accent)}
.sw-toggle input{width:20px;height:20px}
#x-board{width:100%;max-width:330px;height:auto;aspect-ratio:1;touch-action:none;cursor:crosshair;border:1px solid var(--line2);border-radius:8px}
.tools{display:flex;gap:6px;flex-wrap:wrap;margin:10px 0}
.msg{font-size:13px;margin:8px 0 12px;padding:8px 10px;border-radius:8px;background:var(--surface2);border:1px solid var(--line)}
.msg.warn{border-color:var(--warn);color:var(--warn)}
.presets{display:grid;grid-template-columns:repeat(auto-fill,minmax(132px,1fr));gap:10px;margin-top:14px}
.preset{background:var(--surface2);border:1px solid var(--line);border-radius:10px;padding:10px;text-align:center;transition:border-color .2s,transform .25s var(--ease)}
.preset:hover{border-color:var(--accent);transform:translateY(-2px)}
.preset canvas{width:88px;height:88px;margin:0 auto 6px;background:#2c3a2c;border-radius:8px}
.preset p{margin:0 0 8px;font-size:12px;font-weight:700}
.fav{display:grid;grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:10px;margin-top:10px}
.fav>div{background:var(--surface2);border:1px solid var(--line);border-radius:10px;padding:8px;text-align:center}
.fav canvas{width:88px;height:88px;margin:0 auto;background:#3a4a3a}
/* ---- チェック・グラフ・リンク ---- */
.chk-list{list-style:none;margin:8px 0 0;padding:0}
.chk-list label{display:flex;gap:10px;align-items:flex-start;padding:10px 0;border-bottom:1px solid var(--line);cursor:pointer;font-size:14px;color:var(--ink);font-weight:500;margin:0}
.chk-list input{margin-top:3px;flex:none;width:18px;height:18px}
.chk-list small{display:block;color:var(--muted);font-size:12px;font-weight:400}
.chk-list input:checked+span{color:var(--muted);text-decoration:line-through}
.hist{display:grid;gap:5px}
.hr{display:grid;grid-template-columns:52px 1fr auto;gap:8px;align-items:center;font-size:12px;color:var(--muted)}
.hr i{display:block;height:14px;border-radius:3px;background:var(--line2);min-width:2px;transition:width .6s var(--ease)}
.hr.me i{background:var(--accent)}
.hr b{font-weight:600;color:var(--ink);min-width:86px;text-align:right}
.links{list-style:none;margin:10px 0 0;padding:0;display:grid;gap:8px}
.links a{display:block;background:var(--surface2);border:1px solid var(--line);border-radius:10px;padding:12px 14px;text-decoration:none;color:inherit;transition:border-color .2s}
.links a:hover{border-color:var(--accent)}
.links a b{display:block;color:var(--accent)}
.links small{color:var(--muted)}
.big{font-family:var(--f-head);font-weight:700;font-size:clamp(40px,12vw,64px);line-height:1.1;color:var(--ink)}
.big em{font-style:normal;font-size:16px;color:var(--muted);margin-left:6px;font-weight:500}
.chal{background:var(--surface2);border:1px solid var(--line);border-radius:10px;padding:16px;margin-top:14px}
.chal .tag{display:inline-block;font-size:12px;font-weight:700;color:var(--on-accent);background:var(--accent);border-radius:999px;padding:2px 10px}
.chal p{margin:6px 0 0}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:14px 0 0;padding:0;list-style:none;counter-reset:s}
.steps li{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:14px;counter-increment:s;font-size:14px}
.steps li::before{content:counter(s);display:inline-grid;place-items:center;width:24px;height:24px;border-radius:6px;background:var(--accent);color:var(--on-accent);font-family:var(--f-head);font-weight:700;font-size:13px;margin-right:8px}
@media(max-width:640px){.steps{grid-template-columns:1fr}}
.onboard{margin:16px 0;border-color:var(--accent)}
.onboard ol{margin:8px 0 12px;padding-left:20px;font-size:14px}
.tools-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
@media(max-width:860px){.tools-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.tools-grid{grid-template-columns:1fr}}
.tools-grid a{position:relative;overflow:hidden;display:block;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:18px;text-decoration:none;color:inherit;transition:transform .25s var(--ease),border-color .25s,box-shadow .25s;animation:rise .6s var(--ease) both}
.tools-grid a b{display:block;font-size:16px}
.tools-grid a span:not(.ti){color:var(--muted);font-size:13px}
.tools-grid a:nth-child(2){animation-delay:.05s}.tools-grid a:nth-child(3){animation-delay:.1s}.tools-grid a:nth-child(4){animation-delay:.15s}
.tools-grid a:nth-child(5){animation-delay:.2s}.tools-grid a:nth-child(6){animation-delay:.25s}.tools-grid a:nth-child(7){animation-delay:.3s}
.tools-grid a:hover{transform:translateY(-3px);border-color:var(--accent);box-shadow:0 10px 26px -12px var(--accent)}
.tools-grid .ti{display:grid;place-items:center;width:40px;height:40px;border-radius:10px;background:var(--accent-soft);color:var(--accent);margin-bottom:12px;transition:background .25s,color .25s,transform .35s var(--ease)}
.tools-grid .ti svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.tools-grid a:hover .ti{background:var(--accent);color:var(--on-accent);transform:rotate(-8deg) scale(1.06)}
.tools-grid a::after{content:"→";position:absolute;right:16px;top:18px;color:var(--muted);transition:transform .25s var(--ease),color .25s}
.tools-grid a:hover::after{transform:translateX(4px);color:var(--accent)}
.more .tools-grid a{padding:14px}
.more .tools-grid a span:not(.ti){display:none}
@media(max-width:560px){.more .tools-grid{grid-template-columns:repeat(2,1fr)}}
.faq h3{font-size:14px;margin:12px 0 2px}
.faq p{margin:0;color:var(--muted);font-size:13px}
/* ---- 広告・フッター ---- */
.ad-slot{margin:22px 0;text-align:center;min-height:0}
.ad-slot.preview{min-height:100px;border:1px dashed var(--line2);border-radius:10px;display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:12px}
footer{border-top:1px solid var(--line);margin-top:40px;padding:24px 0 44px;color:var(--muted);font-size:12px;background:color-mix(in srgb,var(--surface) 70%,transparent)}
footer a{color:var(--accent)}
.foot-links{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:10px;font-weight:600}
.doc h1{font-size:24px;margin:26px 0 8px}
.doc h2{font-size:17px;margin:28px 0 6px}
.doc p,.doc li{font-size:14px;color:var(--ink)}
.doc table{width:100%;border-collapse:collapse;font-size:13px;margin:10px 0}
.doc th,.doc td{border:1px solid var(--line);padding:8px;text-align:left;vertical-align:top;white-space:normal}
.doc th{background:var(--surface2)}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(20px);background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:999px;font-weight:700;font-size:14px;opacity:0;pointer-events:none;transition:.2s;z-index:30}
.toast.show{opacity:1;transform:translateX(-50%)}
[hidden]{display:none!important}
/* ---- 動き ---- */
main>*{animation:rise .6s var(--ease) both}
main>*:nth-child(2){animation-delay:.05s}main>*:nth-child(3){animation-delay:.1s}main>*:nth-child(4){animation-delay:.15s}
main>*:nth-child(5){animation-delay:.2s}main>*:nth-child(6){animation-delay:.25s}main>*:nth-child(n+7){animation-delay:.3s}
@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}