:root{
    --paper:#ffffff;
    --ink:#101010;
    --muted:#8a8a86;
    --faint:#b5b5b1;
    --ph:#e9e9e7;
    --line:#e3e3e0;
    --gap:clamp(24px,5vw,80px);
    --maxw:1360px;
    --ease:cubic-bezier(.22,1,.36,1);
  }
  *{margin:0;padding:0;box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    background:var(--paper);
    color:var(--ink);
    font-family:"Helvetica Neue",Helvetica,Arial,"Hiragino Kaku Gothic ProN","Hiragino Sans","Yu Gothic",sans-serif;
    font-size:14px;
    line-height:1.9;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  a{color:inherit;text-decoration:none}
  img{max-width:100%;display:block}
  button{font:inherit;background:none;border:none;cursor:pointer;color:inherit}
  .wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--gap)}

  /* ---------- header ---------- */
  header{
    position:fixed;top:0;left:0;right:0;z-index:100;
    background:rgba(255,255,255,.86);
    -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
    transition:box-shadow .4s;
  }
  header.scrolled{box-shadow:0 1px 0 var(--line)}
  .hd{
    max-width:var(--maxw);margin:0 auto;padding:20px var(--gap);
    display:flex;justify-content:space-between;align-items:flex-start;
  }
  .hd-id .name-ja{font-size:17px;font-weight:600;letter-spacing:.14em;line-height:1.3}
  .hd-id .name-en{font-size:9px;letter-spacing:.22em;color:var(--ink);margin-top:2px;text-transform:uppercase}
  .hd-id .role{font-size:9px;letter-spacing:.14em;color:var(--muted);margin-top:1px}
  nav{display:flex;gap:.5em;font-size:11.5px;letter-spacing:.06em;padding-top:4px;flex-wrap:wrap}
  nav a{position:relative;padding-bottom:2px}
  nav a::after{
    content:"";position:absolute;left:0;bottom:0;height:1px;width:100%;
    background:var(--ink);transform:scaleX(0);transform-origin:right;
    transition:transform .45s var(--ease);
  }
  nav a:hover::after,nav a:focus-visible::after{transform:scaleX(1);transform-origin:left}
  nav .sl{color:var(--faint)}

  /* ---------- slider (sliding track, infinite loop) ---------- */
  .slider{position:relative;overflow:hidden}
  .slider .track{
    display:flex;height:100%;
    will-change:transform;
  }
  .slider .slide{flex:0 0 100%;min-width:100%;height:100%;position:relative}
  .slider .slide>*{width:100%;height:100%}
  .slide img{width:100%;height:100%;object-fit:cover}
  .dots{
    position:absolute;left:0;right:0;bottom:14px;z-index:3;
    display:flex;justify-content:center;gap:8px;
  }
  .dot{width:20px;height:14px;position:relative;padding:0}
  .dot::after{
    content:"";position:absolute;left:0;right:0;top:6px;height:1.5px;
    background:var(--ink);opacity:.22;transition:opacity .4s;
  }
  .dot.act::after,.dot:hover::after{opacity:.85}
  /* click zones */
  .zone{
    position:absolute;top:0;bottom:0;width:50%;z-index:2;
    display:flex;align-items:center;
    -webkit-tap-highlight-color:transparent;
  }
  .zone-l{left:0;justify-content:flex-start;padding-left:22px}
  .zone-r{right:0;justify-content:flex-end;padding-right:22px}
  .zone .ar{
    font-size:22px;font-weight:300;color:var(--ink);
    opacity:0;transform:translateX(0);
    transition:opacity .4s,transform .5s var(--ease);
    line-height:1;user-select:none;
  }
  .zone-l:hover .ar{opacity:.55;transform:translateX(-4px)}
  .zone-r:hover .ar{opacity:.55;transform:translateX(4px)}

  /* ---------- hero ---------- */
  .hero{padding-top:96px}
  .hero-slider{
    width:100%;aspect-ratio:16/9;
    clip-path:inset(0 0 100% 0);
  }
  body.loaded .hero-slider{animation:heroWipe 1.3s var(--ease) .25s forwards}
  @keyframes heroWipe{to{clip-path:inset(0 0 0% 0)}}

  /* ---------- placeholder ---------- */
  .ph{
    background:var(--ph);position:relative;overflow:hidden;
    display:flex;align-items:center;justify-content:center;
  }
  .ph::after{
    content:attr(data-label);
    font-size:9px;letter-spacing:.3em;color:var(--faint);text-transform:uppercase;
    white-space:nowrap;
  }

  /* ---------- sections ---------- */
  section{padding-top:clamp(90px,12vw,170px)}
  .sec-title{
    font-size:clamp(26px,3.2vw,40px);font-weight:600;letter-spacing:.02em;
    line-height:1.2;margin-bottom:clamp(32px,4vw,56px);text-wrap:balance;
  }

  /* reveal */
  .rv{opacity:0;transform:translateY(26px);transition:opacity 1s var(--ease),transform 1s var(--ease)}
  .rv.on{opacity:1;transform:none}
  .rv-img{overflow:hidden}

  /* ---------- about ---------- */
  .about-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:clamp(32px,6vw,96px);align-items:start}
  .about-text{max-width:580px}
  .about-jp{
    font-size:13.5px;line-height:2.15;letter-spacing:.02em;
    text-align:justify;
  }
  .about-en{
    font-size:11.5px;line-height:2.0;color:var(--muted);
    margin-top:2.6em;text-align:justify;
  }
  .about-photo{aspect-ratio:3/2;width:100%}
  .about-photo img{width:100%;height:100%;object-fit:cover}
  /* awards — quiet appendix to About */
  .awards{
    margin-top:clamp(48px,6vw,80px);
    padding-top:clamp(28px,3.5vw,44px);
    border-top:1px solid var(--line);
  }
  .awards-label{font-size:10px;letter-spacing:.2em;color:var(--muted);text-transform:uppercase;margin-bottom:18px}
  .awards-list{
    list-style:none;
    columns:2;column-gap:clamp(28px,4vw,72px);
  }
  .awards-list li{
    font-size:10.5px;line-height:1.75;color:var(--muted);
    margin-bottom:7px;break-inside:avoid;
    padding-left:12px;text-indent:-12px;
  }
  .awards-list li::before{content:"—";color:var(--faint);margin-right:6px}
  .awards-list .aw-d{color:var(--faint)}

  /* ---------- works ---------- */
  .work{margin-bottom:clamp(64px,8vw,120px)}
  .work-slider{width:100%;aspect-ratio:16/9;margin-bottom:28px}
  .work-meta{
    display:grid;grid-template-columns:1fr 1fr;
    gap:0 clamp(28px,4vw,72px);
  }
  .work-name{
    grid-column:1/-1;
    font-size:16px;font-weight:600;letter-spacing:.04em;margin-bottom:4px;
  }
  .work-client{
    grid-column:1/-1;
    font-size:10px;letter-spacing:.14em;color:var(--muted);margin-bottom:14px;
  }
  .work-jp{
    font-size:12.5px;line-height:2.05;letter-spacing:.02em;
    text-align:justify;
  }
  .work-en{
    font-size:11.5px;line-height:2.0;color:var(--muted);text-align:justify;
  }
  /* hidden works expander */
  .works-more{
    display:grid;grid-template-rows:0fr;
    transition:grid-template-rows 1.1s var(--ease);
  }
  .works-more.open{grid-template-rows:1fr}
  .works-more-inner{overflow:hidden}
  .works-more-inner .work:first-child{margin-top:0}
  .more-wrap{text-align:center}
  .more-works{
    display:inline-block;
    font-size:11px;letter-spacing:.18em;text-transform:uppercase;
    border:1px solid var(--ink);padding:14px 34px;
    transition:background .4s var(--ease),color .4s var(--ease),opacity .5s,visibility .5s;
  }
  .more-works:hover{background:var(--ink);color:var(--paper)}
  .more-works.hidden{opacity:0;visibility:hidden;pointer-events:none}
  .more-works .dn{display:inline-block;margin-left:.8em;transition:transform .4s var(--ease)}
  .more-works:hover .dn{transform:translateY(3px)}

  /* ---------- services ---------- */
  .svc{
    display:grid;grid-template-columns:minmax(180px,.8fr) minmax(0,1.2fr) minmax(0,1fr);
    gap:clamp(24px,4vw,72px);
    padding:clamp(32px,4vw,52px) 0;border-top:1px solid var(--line);
  }
  .svc:last-child{border-bottom:1px solid var(--line)}
  .svc-no{font-size:10px;letter-spacing:.2em;color:var(--muted);display:block;margin-bottom:14px}
  .svc-en{font-size:20px;font-weight:600;line-height:1.35;letter-spacing:.01em}
  .svc-ja{font-size:10.5px;letter-spacing:.18em;color:var(--muted);margin-top:6px}
  .svc-jp{font-size:12.5px;line-height:2.05;letter-spacing:.02em;text-align:justify}
  .svc-desc-en{font-size:11px;line-height:1.9;color:var(--muted);text-align:justify}

  /* ---------- contents ---------- */
  .school{
    display:grid;grid-template-columns:minmax(200px,340px) 1fr auto;
    align-items:center;gap:clamp(20px,3vw,48px);
    padding:clamp(28px,3.6vw,44px) 0;
    border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  }
  .school-th{aspect-ratio:1.91/1;overflow:hidden;background:var(--ph)}
  .school-th img{width:100%;height:100%;object-fit:cover;transition:transform 1s var(--ease)}
  .school:hover .school-th img{transform:scale(1.045)}
  .school-label{font-size:10px;letter-spacing:.2em;color:var(--muted);text-transform:uppercase;margin-bottom:8px}
  .school-name{font-size:clamp(19px,2.2vw,26px);font-weight:600;letter-spacing:.02em;line-height:1.3}
  .school-cta{
    font-size:10.5px;letter-spacing:.14em;color:var(--muted);
    white-space:nowrap;display:flex;align-items:center;gap:.7em;
    transition:color .3s;
  }
  .school-cta .aw{display:inline-block;transition:transform .45s var(--ease)}
  .school:hover .school-cta{color:var(--ink)}
  .school:hover .school-cta .aw{transform:translateX(6px)}
  .feed-head{display:flex;justify-content:space-between;align-items:baseline;margin:clamp(40px,5vw,64px) 0 22px}
  .feed-label{font-size:15px;font-weight:600;letter-spacing:.06em}
  .feed-more{font-size:10.5px;letter-spacing:.14em;color:var(--muted);position:relative;padding-bottom:2px;transition:color .3s}
  .feed-more::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:1px;background:currentColor;transform:scaleX(0);transform-origin:right;transition:transform .45s var(--ease)}
  .feed-more:hover{color:var(--ink)}
  .feed-more:hover::after{transform:scaleX(1);transform-origin:left}
  .feed-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(14px,1.8vw,26px)}
  .card .th{overflow:hidden;background:var(--ph)}
  .card .th img{width:100%;height:100%;object-fit:cover;transition:transform 1s var(--ease)}
  .card:hover .th img{transform:scale(1.045)}
  .card .th-note{aspect-ratio:1.91/1}
  .card .th-yt{aspect-ratio:16/9}
  .card .t{
    font-size:11px;line-height:1.7;margin-top:12px;color:var(--ink);
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }

  /* ---------- contact ---------- */
  .contact-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(24px,4vw,64px);margin-top:8px}
  .c-label{font-size:10px;letter-spacing:.2em;color:var(--muted);margin-bottom:10px;text-transform:uppercase}
  .c-val{font-size:13.5px;letter-spacing:.03em}
  .c-val a{border-bottom:1px solid transparent;transition:border-color .3s}
  .c-val a:hover{border-color:var(--ink)}
  .c-addr{font-size:11px;color:var(--muted);margin-top:6px;line-height:1.8}
  .c-addr a{border-bottom:1px solid transparent;transition:border-color .3s,color .3s}
  .c-addr a:hover{color:var(--ink);border-color:var(--ink)}
  .c-sns{display:flex;gap:.6em;flex-wrap:wrap;font-size:12.5px}
  .c-sns .sl{color:var(--faint)}

  /* ---------- footer ---------- */
  footer{margin-top:clamp(100px,13vw,190px);border-top:1px solid var(--line)}
  .ft{
    max-width:var(--maxw);margin:0 auto;padding:26px var(--gap);
    display:flex;justify-content:space-between;align-items:center;gap:16px;
    font-size:9.5px;letter-spacing:.12em;color:var(--muted);
  }
  .totop{color:var(--ink)}
  .totop:hover{opacity:.5}

  /* load-in for header */
  .hd{opacity:0;transform:translateY(-8px);transition:opacity .9s var(--ease) .1s,transform .9s var(--ease) .1s}
  body.loaded .hd{opacity:1;transform:none}

  @media (max-width:820px){
    .hero{padding-top:128px}
    .hero-slider{aspect-ratio:4/3}
    .work-slider{aspect-ratio:4/3}
    .about-grid{grid-template-columns:1fr}
    .about-photo-wrap{order:-1}
    .about-photo{max-width:440px}
    .about-text{max-width:none}
    .work-meta{grid-template-columns:1fr}
    .work-en{margin-top:14px}
    .svc{grid-template-columns:1fr;gap:18px}
    .feed-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .contact-grid{grid-template-columns:1fr;gap:28px}
    .school{grid-template-columns:1fr;gap:16px}
    .school-th{max-width:440px}
    .hd{flex-direction:column;gap:10px}
    .zone .ar{opacity:.35}
  }
  @media (prefers-reduced-motion:reduce){
    html{scroll-behavior:auto}
    .rv,.hd{opacity:1;transform:none;transition:none}
    .hero-slider{clip-path:none;animation:none}
    .slider .track{transition:none!important}
    .works-more{transition:none}
  }