/* ==========================================================
   0. Design Tokens — Mondrian構造美 × Liquid Glass Hybrid
   ========================================================== */
:root{
  --bg:            #0A0A0B;   /* 深いチャコールブラック */
  --bg-raise:      #121214;
  --panel-off:     #ECEAE3;   /* Mondrian White相当のオフホワイト */
  --line:          #000000;   /* グリッド罫線 */
  --line-soft:     rgba(255,255,255,.08);
  --ink:           #F2F1EC;
  --ink-dim:       rgba(242,241,236,.62);
  --ink-faint:     rgba(242,241,236,.34);

  --red:           #DE3B32;
  --yellow:        #F0C531;
  --blue:          #1B4CA6;

  --f-display:     'Zen Kaku Gothic New', 'Space Grotesk', sans-serif;
  --f-latin:        'Space Grotesk', sans-serif;
  --f-body:        'Noto Sans JP', sans-serif;
  --f-mono:        'JetBrains Mono', monospace;

  --grid-line-w:   1px;
  --ease:          cubic-bezier(.22,1,.36,1);
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--f-body);
  font-weight:300;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
h1,h2,h3{ font-family:var(--f-display); margin:0; letter-spacing:.01em; }
p{ margin:0; }
::selection{ background:var(--yellow); color:#111; }

.wrap{
  max-width:1400px;
  margin:0 auto;
  padding-inline:clamp(20px,4vw,64px);
}

/* eyebrow / meta label */
.eyebrow{
  font-family:var(--f-mono);
  font-size:12px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--ink-faint);
  display:flex;
  align-items:center;
  gap:.6em;
}
.eyebrow::before{
  content:"";
  width:18px; height:1px;
  background:currentColor;
  display:inline-block;
}

/* ==========================================================
   1. Header / Nav — グラス質感のフローティングバー
   ========================================================== */
.site-header{
  position:fixed; inset:0 0 auto 0;
  z-index:100;
  display:flex; align-items:center; justify-content:space-between;
  padding:18px clamp(20px,4vw,48px);
  background:rgba(10,10,11,.42);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:var(--grid-line-w) solid var(--line-soft);
}
.logo{
  font-family:var(--f-latin);
  font-weight:600;
  font-size:16px;
  letter-spacing:.04em;
  display:flex; align-items:baseline; gap:8px;
}
.logo span{
  width:8px; height:8px; border-radius:50%;
  background:var(--red);
  display:inline-block;
}
.nav-desktop{ display:flex; gap:2px; }
.nav-desktop a{
  font-family:var(--f-mono);
  font-size:13px;
  letter-spacing:.06em;
  padding:8px 18px;
  position:relative;
  color:var(--ink-dim);
  transition:color .25s var(--ease);
}
.nav-desktop a::after{
  content:"";
  position:absolute; left:18px; right:18px; bottom:4px; height:2px;
  background:var(--red);
  transform:scaleX(0); transform-origin:left;
  transition:transform .3s var(--ease);
}
.nav-desktop a:nth-child(2)::after{ background:var(--yellow); }
.nav-desktop a:nth-child(3)::after{ background:var(--blue); }
.nav-desktop a:hover{ color:var(--ink); }
.nav-desktop a:hover::after{ transform:scaleX(1); }

.burger{
  display:none;
  width:40px; height:40px;
  border:1px solid var(--line-soft);
  background:transparent;
  color:var(--ink);
  font-size:18px;
  cursor:pointer;
  align-items:center; justify-content:center;
}

.nav-mobile{
  position:fixed; inset:0;
  background:var(--bg);
  z-index:99;
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:6px;
  padding:24px;
  transform:translateY(-100%);
  transition:transform .45s var(--ease);
}
.nav-mobile.open{ transform:translateY(0); }
.nav-mobile a{
  font-family:var(--f-display);
  font-weight:700;
  font-size:clamp(32px,10vw,56px);
  padding:10px 4px;
  border-bottom:1px solid var(--line-soft);
}

@media (max-width:820px){
  .nav-desktop{ display:none; }
  .burger{ display:flex; }
  .nav-mobile{ display:flex; }
}

/* ==========================================================
   2. FV — Mondrian Grid + Liquid Glass Lens
   ========================================================== */
.fv{
  position:relative;
  min-height:100svh;
  display:flex;
  overflow:hidden;
  border-bottom:2px solid var(--line);
  isolation:isolate;
}

/* グリッド本体：背景画像として生成したMondrian構図 */
.fv-grid{
  position:absolute; inset:0;
  background-repeat:no-repeat;
  background-position:0 0;
  background-size:100vw 100vh;
  z-index:0;
}

/* HTML構造としてのグリッド罫線（意味的な区画） */
.fv-frame{
  position:relative;
  z-index:1;
  width:100%;
  display:grid;
  grid-template-columns:repeat(12,1fr);
  grid-template-rows:repeat(8,1fr);
  min-height:100svh;
}
.fv-frame > div{ border:1px solid var(--line-soft); }

.fv-copy{
  position:absolute;
  z-index:3;
  left:clamp(20px,6vw,80px);
  top:50%;
  transform:translateY(-50%);
  max-width:720px;
  pointer-events:none;
}
.fv-copy .eyebrow{ margin-bottom:22px; }
.fv-copy h1{
  font-size:clamp(34px,6.4vw,88px);
  font-weight:900;
  line-height:1.28;
  color:var(--ink);
  text-shadow:0 2px 30px rgba(0,0,0,.5);
}
.fv-copy h1 em{
  font-style:normal;
  color:var(--yellow);
}
.fv-copy .sub{
  margin-top:26px;
  font-family:var(--f-latin);
  font-size:clamp(13px,1.6vw,17px);
  color:var(--ink-dim);
  letter-spacing:.02em;
  max-width:46ch;
}
.fv-copy .sub strong{ color:var(--ink); font-weight:500; }

.fv-scroll{
  position:absolute; z-index:3;
  right:clamp(20px,4vw,48px); bottom:32px;
  display:flex; align-items:center; gap:10px;
  font-family:var(--f-mono); font-size:11px; letter-spacing:.14em;
  color:var(--ink-faint);
  writing-mode:vertical-rl;
}
.fv-scroll::after{
  content:"";
  width:1px; height:56px;
  background:linear-gradient(var(--ink-faint),transparent);
}

/* リキッドグラスレンズ：カーソル追従／同じ背景を参照して歪ませる */
.glass-lens{
  position:fixed;
  z-index:2;
  width:260px; height:260px;
  border-radius:42% 58% 63% 37% / 41% 44% 56% 59%;
  pointer-events:none;
  left:0; top:0;
  transform:translate3d(-1000px,-1000px,0);
  background-repeat:no-repeat;
  background-position:0 0;
  background-size:100vw 100vh;
  filter:url(#liquid-distort);
  box-shadow:
    inset 0 0 0 1px rgba(255,255,255,.35),
    inset 0 12px 30px rgba(255,255,255,.12),
    0 20px 60px rgba(0,0,0,.55);
  backdrop-filter:blur(3px) brightness(1.12) saturate(1.35);
  -webkit-backdrop-filter:blur(3px) brightness(1.12) saturate(1.35);
  mix-blend-mode:normal;
  opacity:0;
  transition:opacity .5s var(--ease), border-radius 6s ease-in-out infinite;
  animation:blob-morph 9s ease-in-out infinite;
}
.glass-lens.visible{ opacity:1; }
.glass-lens::after{
  content:"";
  position:absolute; inset:0;
  border-radius:inherit;
  background:radial-gradient(circle at 32% 28%, rgba(255,255,255,.28), rgba(255,255,255,0) 55%);
  pointer-events:none;
}
@keyframes blob-morph{
  0%,100%{ border-radius:42% 58% 63% 37% / 41% 44% 56% 59%; }
  33%{     border-radius:58% 42% 39% 61% / 55% 62% 38% 45%; }
  66%{     border-radius:47% 53% 57% 43% / 60% 38% 62% 40%; }
}
@media (prefers-reduced-motion: reduce){
  .glass-lens{ animation:none; transition:opacity .5s var(--ease); }
}
@media (max-width:820px){
  .fv-frame{ grid-template-columns:repeat(6,1fr); grid-template-rows:repeat(10,1fr); }
  .glass-lens{ width:190px; height:190px; }
}

/* ==========================================================
   3. Section shell — 全ページ共通のグリッド境界
   ========================================================== */
section{ position:relative; border-bottom:2px solid var(--line); background:var(--bg); }
.section-head{
  padding:104px 0 56px;
}
.section-head h2{
  font-size:clamp(28px,4.4vw,52px);
  font-weight:700;
  margin-top:14px;
}
.section-head h2 .num{
  font-family:var(--f-mono);
  font-size:.4em;
  color:var(--ink-faint);
  vertical-align:top;
  margin-right:10px;
}
.accent-dot{ color:var(--red); }

/* ==========================================================
   4. About
   ========================================================== */
.about-body{
  display:grid;
  grid-template-columns:340px 1fr;
  gap:64px;
  padding-bottom:96px;
}
.about-portrait{
  position:relative;
  border:1px solid var(--line-soft);
  aspect-ratio:1/1;
  overflow:hidden;
}
.about-portrait img{ width:100%; height:100%; object-fit:cover; filter:grayscale(.15) contrast(1.03); }
.about-portrait .tag{
  position:absolute; left:0; bottom:0;
  background:var(--red);
  color:#100;
  font-family:var(--f-mono);
  font-size:11px;
  letter-spacing:.08em;
  padding:6px 12px;
  color:#160303;
}
.about-name{ margin-bottom:6px; }
.about-name .jp{ font-size:clamp(24px,3vw,32px); font-weight:700; }
.about-name .kana{ font-family:var(--f-mono); font-size:13px; color:var(--ink-faint); letter-spacing:.1em; margin-left:8px; }
.about-birth{ font-family:var(--f-mono); font-size:12px; color:var(--ink-faint); margin-bottom:26px; letter-spacing:.06em; }
.about-lead p{ color:var(--ink-dim); font-size:15.5px; margin-bottom:16px; max-width:56ch; }
.about-lead strong{ color:var(--yellow); font-weight:500; }

.about-grid-2{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  margin-top:56px;
}
.block-title{
  font-family:var(--f-mono);
  font-size:12px;
  letter-spacing:.12em;
  color:var(--ink-faint);
  text-transform:uppercase;
  margin-bottom:22px;
  padding-bottom:10px;
  border-bottom:1px solid var(--line-soft);
}

.timeline{ list-style:none; margin:0; padding:0; }
.timeline li{
  display:grid;
  grid-template-columns:118px 1fr;
  gap:16px;
  padding:14px 0;
  border-bottom:1px solid var(--line-soft);
}
.timeline li:last-child{ border-bottom:none; }
.timeline time{ font-family:var(--f-mono); font-size:12px; color:var(--blue); }
.timeline .role{ font-size:14.5px; color:var(--ink); }
.timeline .org{ display:block; color:var(--ink-dim); font-size:12.5px; margin-top:2px; }

.tools{ display:flex; flex-direction:column; gap:26px; }
.tool-group h4{
  font-family:var(--f-body); font-weight:500; font-size:13.5px;
  color:var(--ink-dim); margin-bottom:12px;
}
.tool-icons{ display:flex; flex-wrap:wrap; gap:14px; }
.tool-icons .chip{
  display:flex; align-items:center; gap:8px;
  padding:8px 12px;
  border:1px solid var(--line-soft);
  font-family:var(--f-mono); font-size:12px;
  color:var(--ink-dim);
  transition:border-color .2s, color .2s;
}
.tool-icons .chip img{ width:16px; height:16px; }
.tool-icons .chip:hover{ border-color:var(--yellow); color:var(--ink); }

/* ==========================================================
   5. Works
   ========================================================== */
.works-list{ padding-bottom:110px; }
.work-block{
  display:grid;
  grid-template-columns:280px 1fr;
  gap:40px;
  padding:44px 0;
  border-top:1px solid var(--line-soft);
}
.work-block:first-child{ border-top:none; }
.work-meta .org{ font-family:var(--f-mono); font-size:12px; color:var(--ink-faint); letter-spacing:.06em; margin-bottom:10px; }
.work-meta h3{ font-size:20px; font-weight:700; line-height:1.5; margin-bottom:16px; }
.more-link{
  display:inline-flex; align-items:center; gap:8px;
  font-family:var(--f-mono); font-size:12px; letter-spacing:.05em;
  color:var(--ink);
  padding-bottom:2px;
  border-bottom:1px solid var(--ink);
}
.more-link::after{ content:"→"; transition:transform .25s var(--ease); }
.more-link:hover::after{ transform:translateX(4px); }

.shot-row{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:10px;
}
.shot-row.wide{ grid-template-columns:repeat(6,1fr); }
.shot{
  position:relative;
  overflow:hidden;
  aspect-ratio:4/3;
  border:1px solid var(--line-soft);
  background:var(--bg-raise);
}
.shot img{ width:100%; height:100%; object-fit:cover; transition:transform .6s var(--ease), filter .6s; }
.shot:hover img{ transform:scale(1.06); filter:saturate(1.15); }
.shot::before{
  content:"";
  position:absolute; inset:0;
  background:linear-gradient(160deg, transparent 60%, rgba(0,0,0,.35));
  pointer-events:none;
}

@media (max-width:820px){
  .about-body,.about-grid-2,.work-block{ grid-template-columns:1fr; }
  .shot-row,.shot-row.wide{ grid-template-columns:repeat(3,1fr); }
}
@media (max-width:520px){
  .shot-row,.shot-row.wide{ grid-template-columns:repeat(2,1fr); }
}

/* ==========================================================
   6. Lab
   ========================================================== */
.lab{ padding-bottom:110px; }
.lab-card{
  display:grid;
  grid-template-columns:1.1fr 1fr;
  border:1px solid var(--line-soft);
}
.lab-visual{ position:relative; aspect-ratio:16/9; overflow:hidden; background:var(--bg-raise); }
.lab-visual img{ width:100%; height:100%; object-fit:cover; }
.lab-visual .swatch{
  position:absolute; width:64px; height:64px; top:20px; left:20px;
  background:var(--blue);
  mix-blend-mode:screen;
  opacity:.55;
}
.lab-info{ padding:clamp(24px,3vw,48px); display:flex; flex-direction:column; justify-content:center; gap:16px; }
.lab-info .eyebrow{ margin-bottom:4px; }
.lab-info h3{ font-size:22px; font-weight:700; }
.lab-info p{ color:var(--ink-dim); font-size:14.5px; max-width:44ch; }
.lab-info .stack{ display:flex; gap:10px; margin-top:6px; }
.lab-info .stack span{
  font-family:var(--f-mono); font-size:11px; letter-spacing:.06em;
  padding:5px 10px; border:1px solid var(--line-soft); color:var(--ink-faint);
}
@media (max-width:820px){ .lab-card{ grid-template-columns:1fr; } }

/* ==========================================================
   7. Contact
   ========================================================== */
.contact{ padding-bottom:0; }
.contact-inner{
  display:grid;
  grid-template-columns:1fr 1fr 1fr;
  border-top:1px solid var(--line-soft);
}
.contact-inner > div{
  padding:64px clamp(20px,4vw,48px);
  border-left:1px solid var(--line-soft);
}
.contact-inner > div:first-child{ border-left:none; }
.contact-cell.accent-red{ background:var(--red); color:#1a0303; }
.contact-cell.accent-blue{ background:var(--blue); color:#eef2fb; }
.contact-lead p{ color:var(--ink-dim); font-size:14.5px; margin-bottom:22px; max-width:32ch; }
.contact-link{
  display:block;
  font-family:var(--f-latin);
  font-size:clamp(18px,2vw,22px);
  font-weight:600;
  padding:14px 0;
  border-bottom:1px solid rgba(255,255,255,.25);
}
.contact-cell.accent-blue .contact-link{ border-bottom-color:rgba(255,255,255,.35); }
.contact-cell h3{ font-size:15px; font-family:var(--f-mono); letter-spacing:.08em; margin-bottom:20px; }

@media (max-width:820px){
  .contact-inner{ grid-template-columns:1fr; }
  .contact-inner > div{ border-left:none; border-top:1px solid var(--line-soft); }
  .contact-inner > div:first-child{ border-top:none; }
}

/* ==========================================================
   8. Footer
   ========================================================== */
footer{
  display:flex; align-items:center; justify-content:space-between;
  padding:26px clamp(20px,4vw,48px);
  font-family:var(--f-mono); font-size:11px; color:var(--ink-faint); letter-spacing:.05em;
}

/* focus visibility */
a:focus-visible, button:focus-visible{
  outline:2px solid var(--yellow); outline-offset:3px;
}