/* 会社サイトの見た目：案A「表紙」（2026-10-29 陽子さんが決定）
   ヘッダー・フッター・スマホメニュー・下の公式LINEボタンは全ページ共通。トップの中身は .pa-top。
   色は8期パレットの5色だけ：コーラル #fe6549／クリーム #fffff8／グレージュ #988b6f／チャコール #393837／ライトグレージュ #efebe7
   白・真っ黒は使わない。暗い表示は作らない。
   文字の大きさは4種類だけ：--pa-f1 誌名／--pa-f2 見出し／--pa-f3 本文16px／--pa-f4 ラベル12px
   部品：Lucian UX/UI #237・#286・#009（MIT License (c) 2026 Seokwoooo · https://lucianlabs.dev/uxui-prompt/）
        Motion Prompt #074（MIT License (c) 2026 Shohei Ohtaki · https://showheyohtaki.github.io/motion-prompt/#074） */
:root{
  --pa-coral:#fe6549;--pa-cream:#fffff8;--pa-greige:#988b6f;--pa-ink:#393837;--pa-light:#efebe7;
  --pa-f1:clamp(52px,11.4vw,150px);--pa-f2:clamp(22px,2.4vw,30px);--pa-f3:16px;--pa-f4:12px;
  --pa-ease:cubic-bezier(.2,.8,.2,1);--pa-spring:cubic-bezier(.34,1.45,.64,1);
  --pa-mast:"Cormorant Garamond",serif;
}
html,body{background:var(--pa-cream)!important;color:var(--pa-ink)}
body{overflow-x:clip}
.pa-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
.pa-nb{display:inline-block}
/* 外枠（.l-container）が flex なので、案Aの箱は横幅いっぱいにする */
.pa-hd,.pa-cover,.pa-top,.pa-cta,.pa-ft{width:100%;box-sizing:border-box}

/* ===== ヘッダー ===== */
.pa-hd{position:relative;z-index:50;background:var(--pa-cream);color:var(--pa-ink)}
.pa-hd-in{display:flex;align-items:center;gap:16px;max-width:1280px;margin:0 auto;padding:18px 40px}
.pa-brand{display:flex;align-items:center;gap:10px;margin-right:auto;color:var(--pa-ink)!important;text-decoration:none!important}
.pa-brand img{width:36px;height:36px;display:block}
.pa-brand .pa-tag{margin:0;font-family:var(--pw-font-jp);font-size:var(--pa-f4);font-weight:400;line-height:1.4;letter-spacing:.06em;color:var(--pa-ink)}
.pa-nav{display:flex;gap:22px;list-style:none;margin:0;padding:0}
.pa-nav>li{position:relative}
.pa-nav a{display:block;color:var(--pa-ink)!important;text-decoration:none!important}
.pa-nav>li>a{font-family:var(--pw-font-en);font-size:var(--pa-f4);letter-spacing:.14em;line-height:2}
.pa-nav>li>a:hover,.pa-nav>li>a[aria-current]{text-decoration:underline!important;text-underline-offset:4px}
.pa-sub{position:absolute;left:50%;top:100%;min-width:280px;margin:0;padding:12px 0;list-style:none;background:var(--pa-cream);box-shadow:0 0 0 1px var(--pa-light),0 18px 40px -24px rgba(57,56,55,.4);transform:translate(-50%,6px);opacity:0;visibility:hidden;transition:opacity .25s,transform .3s var(--pa-ease),visibility .25s}
.pa-nav>li:hover>.pa-sub,.pa-nav>li:focus-within>.pa-sub{opacity:1;visibility:visible;transform:translate(-50%,0)}
.pa-sub a{padding:6px 20px;font-family:var(--pw-font-jp);font-size:var(--pa-f4);letter-spacing:.06em;line-height:1.6}
.pa-sub-in a{padding-left:36px!important}
.pa-sub ul{list-style:none;margin:0;padding:0}
.pa-sub a:hover{background:var(--pa-light)}

/* Lucian #286 Step-in mobile submenu（スマホのメニュー） */
.u286-bg{display:none;width:44px;height:44px;border:0;border-radius:12px;background:var(--pa-light);place-items:center;cursor:pointer;padding:0}
.u286-bg span{position:relative;width:18px;height:12px}
.u286-bg i{position:absolute;left:0;width:18px;height:2px;border-radius:1px;background:var(--pa-ink);transition:transform .35s cubic-bezier(.3,1.4,.5,1),opacity .2s,top .35s}
.u286-bg i:nth-child(1){top:0}.u286-bg i:nth-child(2){top:5px}.u286-bg i:nth-child(3){top:10px}
.is-open .u286-bg i:nth-child(1){top:5px;transform:rotate(45deg)}
.is-open .u286-bg i:nth-child(2){opacity:0;transform:scaleX(.2)}
.is-open .u286-bg i:nth-child(3){top:5px;transform:rotate(-45deg)}
.u286-mn{position:fixed;left:0;right:0;top:72px;bottom:0;z-index:49;background:var(--pa-cream);clip-path:inset(0 0 100% 0);transition:clip-path .45s cubic-bezier(.7,0,.2,1);overflow:hidden;visibility:hidden}
.is-open .u286-mn{clip-path:inset(0 0 0 0);visibility:visible}
.u286-nb{display:flex;align-items:center;gap:8px;height:44px;padding:0 16px}
.u286-bk{width:32px;height:32px;border:0;border-radius:9px;background:var(--pa-light);color:var(--pa-ink);display:grid;place-items:center;cursor:pointer;padding:0;transition:opacity .25s,transform .3s}
.u286-bk[hidden]{display:grid;opacity:0;transform:translateX(-6px);pointer-events:none}
.u286-bk svg{width:14px;height:14px}
.u286-tt{font-family:var(--pw-font-en);font-size:var(--pa-f4);letter-spacing:.2em}
.u286-vw{position:absolute;left:0;right:0;top:44px;bottom:0;overflow-y:auto}
.u286-ls{position:absolute;inset:0;padding:8px;margin:0;list-style:none;transition:transform .38s cubic-bezier(.2,.8,.2,1),opacity .3s}
.u286-it{display:flex;align-items:center;width:100%;min-height:52px;padding:0 12px;border:0;border-radius:12px;background:none;color:var(--pa-ink)!important;font-family:var(--pw-font-jp);font-size:var(--pa-f3);line-height:1.4;text-decoration:none!important;cursor:pointer;text-align:left;opacity:0;transform:translateY(8px);transition:opacity .3s,transform .35s cubic-bezier(.3,1.3,.5,1),background .2s}
.u286-it:hover{background:var(--pa-light)}
.u286-it svg{margin-left:auto;flex:none;width:14px;height:14px}
.u286-ls.is-in .u286-it{opacity:1;transform:none}

/* ===== トップ：表紙（FV） ===== */
.pa-cover{max-width:1280px;margin:0 auto;padding:0 40px}
.pa-mast{margin:0;text-align:center;font-family:var(--pa-mast);font-weight:600;font-size:var(--pa-f1);line-height:1;letter-spacing:.06em;padding:6px 0 18px;color:var(--pa-ink)}
.pa-cv{position:relative;height:clamp(400px,41vw,520px);overflow:hidden;border-radius:2px;background:var(--pa-light)}
.pa-cv video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}
.pa-cv::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(57,56,55,0) 35%,rgba(57,56,55,.78) 100%);pointer-events:none}
.pa-cv-tx{position:absolute;left:40px;right:40px;bottom:36px;z-index:2;color:var(--pa-cream)}
.pa-cv-k{margin:0 0 14px;font-family:var(--pw-font-en);font-size:var(--pa-f4);letter-spacing:.2em;line-height:1.6;color:var(--pa-cream)}

/* Lucian #237 Line-by-line mask reveal headline（表紙の見出し） */
.u237-h{position:relative;margin:0;padding:0;border:0;background:none;font-family:var(--pw-font-jp);font-size:var(--pa-f2)!important;line-height:1.4;font-weight:700;letter-spacing:.06em;color:var(--pa-cream)!important}
.u237-h::before,.u237-h::after{display:none!important}
.u237-ln{display:block;overflow:hidden;padding:0 0 .06em}
.u237-in{display:inline-block;transform:translateY(108%) rotate(4deg);transform-origin:0 100%}
.u237-cp.is-in .u237-in{transform:none;transition:transform .9s cubic-bezier(.2,.9,.2,1) calc(var(--i) * 95ms)}
.u237-u{display:block;width:210px;height:22px;margin:2px 0 0 -4px!important;overflow:visible;fill:none;stroke:var(--pa-coral);stroke-width:4;stroke-linecap:round;stroke-dasharray:240;stroke-dashoffset:240;transition:stroke-dashoffset .2s ease}
.u237.is-drawn .u237-u{stroke-dashoffset:0;transition:stroke-dashoffset .7s cubic-bezier(.6,0,.2,1)}
/* コンセプトの下の小さい一文（案2）。「⤴︎」は Noto Sans Math の字で出す */
.pa-cv-sub{margin:28px 0 0;font-family:var(--pw-font-jp);font-size:var(--pa-f3);font-weight:400;line-height:1.6;letter-spacing:.06em;color:var(--pa-cream)}
.pa-sym{font-family:"Noto Sans Math",var(--pw-font-jp)}

/* ===== トップ：本文 ===== */
.pa-top{color:var(--pa-ink);font-size:var(--pa-f3);line-height:1.6;letter-spacing:.03em}
.pa-top a{color:var(--pa-ink)}
.pa-sec{max-width:1040px;margin:0 auto;padding:120px 40px 0}
.pa-lead{max-width:640px;margin:0 auto;text-align:center}
.pa-lead p{margin:0}
.pa-lead strong{display:block;margin:20px 0;font-size:var(--pa-f2);line-height:1.4;letter-spacing:.06em}
.pa-lbl{margin:0 0 28px;font-family:var(--pw-font-en);font-size:var(--pa-f4);letter-spacing:.24em}
.pa-toc{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;list-style:none;margin:0;padding:0}
.pa-toc-ph{aspect-ratio:4/5;overflow:hidden;background:var(--pa-light)}
.pa-toc-ph img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .9s var(--pa-ease)}
.pa-toc>li:hover .pa-toc-ph img{transform:scale(1.04)}
.pa-toc-no{margin:18px 0 4px;font-family:var(--pw-font-en);font-size:var(--pa-f4);letter-spacing:.2em}
.pa-toc h3{margin:0 0 8px;padding:0;border:0;background:none;font-size:var(--pa-f2);line-height:1.4;font-weight:700;letter-spacing:.06em}
.pa-toc h3::before,.pa-toc h3::after{display:none}
.pa-toc h3 a,.pa-toc ul a{text-decoration:none}
.pa-toc ul{list-style:none;margin:0;padding:0}
.pa-toc ul li{margin:0;padding:0}
.pa-toc ul li::before{display:none}
.pa-toc ul a::before{content:"— "}
.pa-toc ul a:hover{text-decoration:underline;text-underline-offset:4px}
.pa-msg-h{margin:0 0 32px;padding:0;border:0;background:none;font-family:var(--pw-font-en)!important;font-weight:400;font-size:var(--pa-f2);letter-spacing:.12em;line-height:1.4}
.pa-msg-h::before,.pa-msg-h::after{display:none}
.pa-msg{column-count:2;column-gap:64px}
.pa-msg p{margin:0 0 1.6em;break-inside:avoid}

/* Lucian #009 Rolling label button（リンクに移植） */
.pa-cta{display:flex;flex-direction:column;align-items:center;gap:20px;padding:96px 40px 120px}
.pa-top+.pa-cta,.pa-cta-top{padding-top:96px}
.u009-btn{position:relative;display:inline-flex;align-items:center;gap:16px;height:64px;padding:0 8px 0 28px;border-radius:999px;color:var(--pa-ink)!important;text-decoration:none!important;overflow:hidden;isolation:isolate;box-shadow:inset 0 0 0 1.5px var(--pa-ink);transition:transform .5s var(--pa-spring)}
.u009-btn:active{transform:scale(.96)}
.u009-btn:focus-visible{outline:2px solid var(--pa-ink);outline-offset:5px}
.u009-word{position:relative;display:flex;height:26px;overflow:hidden;font-family:var(--pw-font-jp);font-size:var(--pa-f3);font-weight:700;line-height:26px;letter-spacing:.04em}
.u009-face{display:flex}
.u009-face>span{display:flex;flex-direction:column;transition:transform .55s var(--pa-ease);transition-delay:calc(var(--i) * 22ms)}
.u009-face>span::after{content:attr(data-c);display:block}
.u009-btn:hover .u009-face>span,.u009-btn:focus-visible .u009-face>span{transform:translateY(-26px)}
.u009-orb{position:relative;width:48px;height:48px;flex:none;border-radius:50%;background:var(--pa-ink);color:var(--pa-cream);overflow:hidden}
.u009-orb.is-coral{background:var(--pa-coral);color:var(--pa-ink)}
.u009-orb svg{position:absolute;left:13px;top:13px;width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:2.3;stroke-linecap:round;stroke-linejoin:round;transition:transform .55s var(--pa-ease)}
.u009-orb svg+svg{transform:translate(-36px,36px)}
.u009-btn:hover .u009-orb svg:first-child{transform:translate(36px,-36px)}
.u009-btn:hover .u009-orb svg+svg{transform:none;transition-delay:.08s}

/* ===== フッター ===== */
.pa-ft{background:var(--pa-light);padding:72px 40px 40px;text-align:center;color:var(--pa-ink)}
.pa-ft img{width:56px;height:56px;margin:0 auto 28px;display:block}
.pa-ft-nav{display:flex;flex-wrap:wrap;justify-content:center;gap:12px 28px;list-style:none;margin:0 0 28px;padding:0}
.pa-ft-nav li{margin:0;padding:0}
.pa-ft a{color:var(--pa-ink)!important}
.pa-ft-nav a{font-family:var(--pw-font-en);font-size:var(--pa-f4);letter-spacing:.14em;text-decoration:none!important}
.pa-ft small{display:block;font-size:var(--pa-f4);letter-spacing:.04em;line-height:1.6}
.pa-ft small+small{margin-top:8px}
.pa-ft small a{text-decoration:none}
.pa-ft small:first-child a,.pa-ft-sub a{text-decoration:underline}

/* Motion Prompt #074 Fade-in on scroll：85%の線をこえたら0.7秒で 28px 下から浮かぶ */
.pa-fi{opacity:0;transform:translateY(28px);transition:opacity .7s cubic-bezier(.33,1,.68,1),transform .7s cubic-bezier(.33,1,.68,1)}
.pa-fi.is-in{opacity:1;transform:none}

@media (max-width:820px){
  .pa-hd{position:sticky;top:0}
  .pa-hd-in{padding:14px 16px}
  .pa-brand .pa-tag{display:none}
  .pa-nav{display:none}
  .u286-bg{display:grid}
  .pa-cover{padding:0 16px}
  .pa-mast{padding:4px 0 14px}
  .pa-cv{height:440px}
  .pa-cv-tx{left:20px;right:20px;bottom:24px}
  .pa-sec{padding:80px 16px 0}
  .pa-toc{grid-template-columns:1fr;gap:48px}
  .pa-toc-ph{aspect-ratio:4/3}
  .pa-msg{column-count:1}
  .pa-cta{padding:72px 16px 96px}
  .u009-btn{max-width:100%;height:auto;min-height:64px;padding:8px 8px 8px 22px}
  .u009-word{height:auto;overflow:visible;line-height:1.6}
  .u009-face{flex-wrap:wrap}
  .u009-face>span::after{display:none}
  .u009-btn:hover .u009-face>span{transform:none}
  .pa-ft{padding:56px 16px 32px}
}
@media (prefers-reduced-motion:reduce){
  .pa-hd *,.pa-top *,.pa-cta *,.pa-cover *{animation-duration:.001ms!important;transition-duration:.001ms!important}
  .pa-fi{opacity:1;transform:none}
}