:root{
  --paper:#F7F6F1;
  --paper-2:#EFEEE6;
  --ink:#14171D;
  --ai:#1E4266;
  --ai-deep:#152F49;
  --mist:#E2E1D7;
  --gray:#5C636D;
  --gold:#C0912F;
  --serif:'Shippori Mincho',serif;
  --sans:'Zen Kaku Gothic New',sans-serif;
  --mono:'IBM Plex Mono',monospace;
  --disp:'Cormorant Garamond',serif;
  --ease-out:cubic-bezier(.16,1,.3,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}
body{
  font-family:var(--sans);
  background:var(--paper);
  color:var(--ink);
  line-height:1.95;font-size:15px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
::selection{background:rgba(192,145,47,.22)}
a{color:var(--ai);text-decoration:none}
a:focus-visible,button:focus-visible{outline:2px solid var(--ai);outline-offset:3px;border-radius:2px}
.wrap{max-width:1160px;margin:0 auto;padding:0 32px}
@media(max-width:640px){.wrap{padding:0 20px}}
.sp-only{display:none}
@media(max-width:640px){.sp-only{display:inline}.pc-only{display:none}}

/* ===== 紙目テクスチャ ===== */
.grain{
  position:fixed;inset:0;z-index:110;pointer-events:none;opacity:.05;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/><feColorMatrix type='saturate' values='0'/></filter><rect width='160' height='160' filter='url(%23n)' opacity='0.55'/></svg>");
}

/* ===== header ===== */
header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  background:rgba(247,246,241,.85);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--mist);
  transition:transform .5s var(--ease-out);
}
header.hide{transform:translateY(-101%)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{font-family:var(--serif);font-weight:700;font-size:20px;letter-spacing:.16em;color:var(--ink)}
.logo span{color:var(--gold)}
nav ul{display:flex;gap:36px;list-style:none}
nav a{font-family:var(--mono);font-size:11px;letter-spacing:.2em;color:var(--gray);text-transform:uppercase;position:relative;padding:4px 0}
nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--gold);
  transform:scaleX(0);transform-origin:right;transition:transform .4s var(--ease-out);
}
nav a:hover{color:var(--ink)}
nav a:hover::after{transform:scaleX(1);transform-origin:left}
@media(max-width:640px){
  nav ul{gap:8px}
  /* 見た目は据え置きでタップ領域だけ44px相当に広げる(padding+負マージン)。
     下線はパディング分を差し引いて従来位置に固定 */
  nav a{font-size:10px;letter-spacing:.1em;padding:14px 8px;margin:-14px -4px}
  nav a::after{bottom:14px;left:8px;right:8px}
}

/* ===== hero ===== */
.hero{
  min-height:100svh;display:grid;place-items:center;text-align:center;
  position:relative;padding:120px 0 100px;
}
.hero-art{
  position:absolute;inset:0;display:grid;place-items:center;
  pointer-events:none;opacity:.07;
}
.hero-art svg{width:min(74vw,660px);height:auto}
.hero-inner{position:relative}
.hero h1{
  font-family:var(--serif);font-weight:600;
  font-size:clamp(26px,5.2vw,62px);line-height:2;letter-spacing:.06em;
}
.hero .lede{margin-top:40px;color:var(--gray);font-size:14px;line-height:2.4}
.scroll-cue{
  position:absolute;bottom:34px;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:12px;
}
.scroll-cue span{font-family:var(--mono);font-size:9px;letter-spacing:.4em;color:var(--gray);text-transform:uppercase;padding-left:.4em}
.scroll-cue i{width:1px;height:44px;background:var(--gray);opacity:.5}

/* ===== manifesto ===== */
.manifesto{padding:210px 0;text-align:center}
.manifesto p{
  font-family:var(--serif);font-weight:500;
  font-size:clamp(18px,2.5vw,29px);line-height:2.2;letter-spacing:.1em;
  margin-bottom:1.6em;
}
.manifesto .mf-break{margin-top:2.8em}
.manifesto p:last-child{margin-bottom:0}

/* ===== section common ===== */
section{padding:130px 0 40px}
.sec-head{display:flex;align-items:baseline;gap:24px;margin-bottom:72px}
.sec-head h2{font-family:var(--serif);font-weight:600;font-size:clamp(28px,4vw,40px);letter-spacing:.12em}
.sec-head .count{font-family:var(--disp);font-style:italic;font-weight:500;font-size:22px;color:var(--gold)}
.sec-head .en{font-family:var(--mono);font-size:11px;letter-spacing:.26em;color:var(--gray);margin-left:auto}
@media(max-width:640px){
  .sec-head{flex-wrap:wrap;gap:10px 20px}
  .sec-head .en{margin-left:0;flex-basis:100%}
}
.kicker{
  font-family:var(--mono);font-size:10px;letter-spacing:.4em;color:var(--gold);
  text-transform:uppercase;margin-bottom:26px;display:block;
}

/* ===== imagined worlds ===== */
.world{padding:60px 0 90px}
.world+.world{border-top:1px solid var(--mist)}
.w-label{
  font-family:var(--mono);font-size:10px;letter-spacing:.34em;
  color:var(--gold);text-transform:uppercase;margin-bottom:22px;
}
.w-frame{
  position:relative;overflow:hidden;aspect-ratio:16/10;background:var(--paper-2);
  border:1px solid var(--mist);margin-bottom:48px;
}
.w-frame img{
  width:100%;height:100%;object-fit:cover;display:block;
  transition:transform 1.6s var(--ease-out);
}
.world:hover .w-frame img{transform:scale(1.02)}
.w-body{max-width:660px}
.world h3{font-family:var(--serif);font-weight:600;font-size:clamp(24px,3.2vw,38px);letter-spacing:.08em;margin-bottom:24px}
.w-story{
  font-family:var(--serif);font-size:clamp(15px,1.6vw,17px);
  line-height:2.5;letter-spacing:.06em;margin-bottom:20px;
}
.w-sub{color:var(--gray);font-size:13.5px;margin-bottom:26px}
.w-tags{font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;color:var(--gray);margin-bottom:16px}
.w-link a{
  font-family:var(--mono);font-size:12px;letter-spacing:.1em;
  border-bottom:1px solid rgba(30,66,102,.35);transition:border-color .25s,color .25s;
}
.w-link a:hover{border-color:var(--gold);color:var(--ai-deep)}
.w-note{font-size:12px;color:var(--gray);margin-top:12px}

/* ===== client works ===== */
.client-intro{margin-bottom:80px}
.client-intro p{
  font-family:var(--serif);font-weight:500;
  font-size:clamp(17px,2.1vw,24px);line-height:2.4;letter-spacing:.08em;
}
.cw-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}
@media(max-width:860px){.cw-grid{grid-template-columns:1fr;gap:56px}}
.frame{
  position:relative;overflow:hidden;aspect-ratio:16/10;background:var(--paper-2);
  border:1px solid var(--mist);
}
.frame svg{width:100%;height:100%;object-fit:cover;display:block}
.conf{position:absolute;inset:0;display:grid;place-items:center;pointer-events:none}
.conf span{
  font-family:var(--mono);font-size:10px;letter-spacing:.44em;padding:10px 22px 10px calc(22px + .44em);
  color:var(--ai);border:1px solid rgba(30,66,102,.4);background:rgba(247,246,241,.72);
}
.cw h3{
  font-family:var(--serif);font-weight:600;font-size:17px;letter-spacing:.06em;
  margin:26px 0 12px;display:flex;align-items:center;gap:12px;flex-wrap:wrap;
}
.cw p{color:var(--gray);font-size:12.5px;line-height:2.1}
.status{
  font-size:10.5px;letter-spacing:.08em;font-family:var(--sans);font-weight:400;
  color:var(--gray);border:1px solid var(--mist);border-radius:999px;
  padding:2px 12px;background:rgba(255,255,255,.5);white-space:nowrap;
}

/* ===== making ===== */
.mk-lede{
  font-family:var(--serif);font-weight:500;
  font-size:clamp(19px,2.4vw,27px);letter-spacing:.1em;margin-bottom:64px;
}
.mk-strip{
  display:grid;grid-auto-flow:column;grid-auto-columns:minmax(172px,1fr);
  overflow-x:auto;scroll-snap-type:x proximity;
  border-top:1px solid var(--mist);border-bottom:1px solid var(--mist);
  -webkit-overflow-scrolling:touch;
}
.mk-step{
  scroll-snap-align:start;padding:46px 26px 42px;
  border-left:1px solid var(--mist);display:flex;flex-direction:column;gap:8px;
}
.mk-step:first-child{border-left:none}
.mk-step .no{font-family:var(--disp);font-style:italic;font-weight:500;font-size:19px;color:var(--gold);line-height:1}
.mk-step .w{font-family:var(--disp);font-weight:500;font-size:clamp(24px,2.6vw,32px);line-height:1.3;letter-spacing:.02em}
.mk-step .jp{font-size:11.5px;color:var(--gray);letter-spacing:.1em}
.mk-note{margin-top:36px;font-size:12.5px;color:var(--gray)}

/* ===== philosophy ===== */
.philosophy{
  background:var(--ink);color:var(--paper);
  padding:200px 0;text-align:center;margin-top:90px;
}
.philosophy h2{
  font-family:var(--serif);font-weight:600;color:var(--paper);
  font-size:clamp(30px,5vw,56px);letter-spacing:.16em;line-height:2;
}
.philosophy p{margin-top:48px;color:rgba(247,246,241,.68);font-size:13.5px;line-height:2.7}

/* ===== about ===== */
.about-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:80px;align-items:center;margin-bottom:40px}
@media(max-width:760px){
  .about-grid{grid-template-columns:1fr;gap:48px}
  .about-visual{order:-1}
}
.about .name{font-family:var(--serif);font-weight:600;font-size:24px;letter-spacing:.1em}
.about .role{
  font-family:var(--mono);font-size:10px;letter-spacing:.22em;color:var(--gray);
  text-transform:uppercase;margin:8px 0 30px;
}
.about p{color:var(--gray);font-size:14px;margin-bottom:1.4em}
.likes{display:flex;flex-wrap:wrap;gap:10px;margin:30px 0 34px}
.likes span{
  font-size:12px;letter-spacing:.06em;color:var(--gray);
  border:1px solid var(--mist);border-radius:999px;padding:4px 18px;
  background:rgba(255,255,255,.5);
}
.sns-links{display:flex;gap:24px}
.sns-links a{
  font-family:var(--mono);font-size:11.5px;letter-spacing:.14em;color:var(--ai);
  border-bottom:1px solid transparent;transition:border-color .25s;
}
.sns-links a:hover{border-color:var(--gold)}
.about-visual{display:grid;place-items:center}
.avatar-lg{
  width:min(280px,64vw);height:auto;border-radius:50%;
  border:1px solid var(--mist);object-fit:cover;
  box-shadow:0 10px 40px rgba(20,23,29,.1);
}

/* ===== contact ===== */
.contact{text-align:center;padding:180px 0 150px}
.contact h2{
  font-family:var(--serif);font-weight:600;
  font-size:clamp(26px,4.6vw,48px);letter-spacing:.1em;margin-bottom:28px;line-height:1.9;
}
.contact .sub-lede{color:var(--gray);font-size:14px;line-height:2.4;margin-bottom:56px}
.btn{
  display:inline-block;position:relative;overflow:hidden;
  font-family:var(--sans);font-weight:500;font-size:14px;letter-spacing:.18em;
  color:var(--ai);border:1px solid var(--ai);
  padding:18px 64px;transition:color .45s var(--ease-out);
}
.btn::before{
  content:"";position:absolute;inset:0;background:var(--ai);
  transform:translateY(101%);transition:transform .5s var(--ease-out);
}
.btn:hover{color:var(--paper)}
.btn:hover::before{transform:translateY(0)}
.btn span{position:relative;z-index:1}
.contact .sub{margin-top:24px;font-size:12px;color:var(--gray)}

/* ===== footer ===== */
footer{border-top:1px solid var(--mist);padding:90px 0 44px;text-align:center}
footer .tagline{
  font-family:var(--disp);font-weight:500;
  font-size:clamp(21px,3vw,30px);letter-spacing:.04em;margin-bottom:36px;
}
footer .tagline em{font-style:italic;color:var(--gold)}
.cp-row{display:flex;justify-content:center;align-items:center;gap:14px}
footer .cp{font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;color:var(--gray)}
footer .paw{color:var(--gold);font-size:13px}

/* ===== モーション(reduced-motion時は全て素通し) =====
   方針: フェード / わずかな上昇 / 画像ズーム2%のみ。 */
@media(prefers-reduced-motion:no-preference){
  .js .hl{display:block;overflow:hidden;padding-bottom:.1em;margin-bottom:-.1em}
  .js .hl>span{display:inline-block;transform:translateY(112%);transition:transform 1.2s var(--ease-out)}
  .js.loaded .hl>span{transform:none}
  .js.loaded .hl:nth-child(2)>span{transition-delay:.15s}
  .js .hero .lede,.js .scroll-cue{
    opacity:0;transform:translateY(12px);transition:opacity 1.2s ease,transform 1.2s var(--ease-out);
  }
  .js.loaded .hero .lede{opacity:1;transform:none;transition-delay:.55s}
  .js.loaded .scroll-cue{opacity:1;transform:translateX(-50%);transition-delay:.9s}
  .js .scroll-cue{transform:translateX(-50%) translateY(0)}
  .js .hero-art{opacity:0;transition:opacity 1.6s ease .4s}
  .js.loaded .hero-art{opacity:.07}

  .js [data-reveal]{opacity:0;transform:translateY(24px);transition:opacity 1.15s ease,transform 1.15s var(--ease-out)}
  .js [data-reveal].in{opacity:1;transform:none}
}