:root{
    --ink:#0A0D14;
    --ink-2:#10141F;
    --surface:#141A26;
    --line:rgba(255,255,255,.10);
    --line-strong:rgba(255,255,255,.20);
    --paper:#F3F1EC;
    --paper-2:#E9E5DC;
    --paper-ink:#191B22;
    --paper-mute:#5C5B54;
    --text:#EAEDF3;
    --mute:#9AA3B2;
    --ai:#31E6D2;
    --ai-deep:#12B9AE;
    --human:#FF6552;
    --human-deep:#E8412E;
    --focus:#8FD8FF;
    --f-disp:"Space Grotesk",system-ui,sans-serif;
    --f-mono:"Space Mono",ui-monospace,monospace;
    --f-craft:"Fraunces",Georgia,serif;
    --f-jp:"Zen Kaku Gothic New",system-ui,sans-serif;
    --wrap:1180px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  @media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
  body{
    margin:0;background:var(--ink);color:var(--text);
    font-family:var(--f-jp);font-weight:400;line-height:1.8;
    -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
    overflow-x:hidden;
  }
  a{color:inherit;text-decoration:none}
  img{max-width:100%;display:block}
  ::selection{background:var(--ai);color:var(--ink)}
  :focus-visible{outline:2px solid var(--focus);outline-offset:3px;border-radius:2px}

  .wrap{width:min(var(--wrap),100% - 48px);margin-inline:auto}
  .eyebrow{
    font-family:var(--f-mono);font-size:.72rem;letter-spacing:.28em;
    text-transform:uppercase;color:var(--mute);margin:0;
  }

  /* ---------- NAV ---------- */
  header.nav{
    position:fixed;inset:0 0 auto 0;z-index:60;
    display:flex;align-items:center;justify-content:space-between;
    padding:20px clamp(16px,4vw,40px);
    transition:background .4s ease,padding .4s ease,border-color .4s ease;
    border-bottom:1px solid transparent;
  }
  header.nav.scrolled{
    background:rgba(10,13,20,.82);backdrop-filter:blur(14px);
    padding-top:13px;padding-bottom:13px;border-bottom-color:var(--line);
  }
  .brand{display:flex;flex-direction:column;line-height:1.15;letter-spacing:.02em}
  .brand b{font-family:var(--f-disp);font-weight:700;font-size:clamp(.78rem,2.3vw,.95rem);letter-spacing:.01em;white-space:nowrap}
  .brand .dot{color:var(--ai)}
  .brand span{font-size:.62rem;color:var(--mute);letter-spacing:.14em}
  .nav-links{display:flex;align-items:center;gap:clamp(14px,2.6vw,30px)}
  .nav-links a{font-size:.82rem;color:var(--mute);transition:color .25s}
  .nav-links a:hover{color:var(--text)}
  .nav-cta{
    font-family:var(--f-mono);font-size:.72rem;letter-spacing:.06em;
    border:1px solid var(--line-strong);padding:8px 15px;border-radius:100px;
    color:var(--text);transition:.25s;white-space:nowrap;
  }
  .nav-cta:hover{border-color:var(--ai);color:var(--ai);box-shadow:0 0 0 3px rgba(49,230,210,.12)}
  @media(max-width:620px){
    .brand span{display:none}
    .nav-links a.hide-sm{display:none}
  }

  /* ---------- HERO ---------- */
  .hero{position:relative;min-height:100svh;display:flex;align-items:center;isolation:isolate;overflow:hidden}
  #net{position:absolute;inset:0;width:100%;height:100%;z-index:-2}
  .hero::after{ /* vignette + seam glow */
    content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
    background:
      radial-gradient(120% 80% at 18% 30%,rgba(49,230,210,.10),transparent 55%),
      radial-gradient(120% 80% at 84% 74%,rgba(255,101,82,.12),transparent 55%),
      linear-gradient(180deg,rgba(10,13,20,.35),rgba(10,13,20,.72) 72%,var(--ink));
  }
  .hero-inner{padding:120px 0 90px}
  .hero .eyebrow{opacity:0;transform:translateY(10px);animation:rise .8s .1s ease forwards}

  .lockup{
    font-family:var(--f-disp);font-weight:700;
    font-size:clamp(3.3rem,15vw,10.5rem);line-height:.92;letter-spacing:-.02em;
    margin:.28em 0 .1em;display:flex;flex-wrap:wrap;align-items:baseline;gap:.12em;
  }
  .lockup .ai{
    color:var(--ai);text-transform:uppercase;
    text-shadow:0 0 40px rgba(49,230,210,.35);
    opacity:0;transform:translateX(-40px);animation:inLeft .9s .25s cubic-bezier(.2,.8,.2,1) forwards;
  }
  .lockup .x{
    font-family:var(--f-disp);font-weight:400;color:var(--text);
    font-size:.62em;opacity:0;transform:scale(.4) rotate(-25deg);
    animation:pop .7s .62s cubic-bezier(.2,1.4,.4,1) forwards;
    text-shadow:0 0 30px rgba(255,255,255,.25);
  }
  .lockup .human{
    font-family:var(--f-craft);font-style:italic;font-weight:500;
    color:var(--human);letter-spacing:-.01em;
    text-shadow:0 0 44px rgba(255,101,82,.30);
    opacity:0;transform:translateX(40px);animation:inRight .9s .4s cubic-bezier(.2,.8,.2,1) forwards;
  }
  .thesis{
    max-width:34ch;font-size:clamp(1rem,2.3vw,1.32rem);color:#D3D9E3;line-height:1.85;
    font-weight:500;margin:.6em 0 0;
    opacity:0;transform:translateY(14px);animation:rise .9s .75s ease forwards;
  }
  .thesis b{color:#fff;font-weight:700}
  .thesis .u-ai{color:var(--ai)}
  .thesis .u-hu{color:var(--human)}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;
    opacity:0;transform:translateY(14px);animation:rise .9s .92s ease forwards}
  .btn{
    display:inline-flex;align-items:center;gap:10px;font-family:var(--f-disp);font-weight:500;
    font-size:.94rem;padding:14px 24px;border-radius:100px;transition:.28s;border:1px solid transparent;
  }
  .btn .arw{transition:transform .28s}
  .btn:hover .arw{transform:translateX(4px)}
  .btn-ai{background:var(--ai);color:#04201D}
  .btn-ai:hover{box-shadow:0 12px 34px -10px rgba(49,230,210,.6);transform:translateY(-2px)}
  .btn-hu{background:transparent;color:var(--text);border-color:var(--line-strong)}
  .btn-hu:hover{border-color:var(--human);color:#fff;box-shadow:0 12px 34px -14px rgba(255,101,82,.5);transform:translateY(-2px)}

  .scrollcue{
    position:absolute;left:0;right:0;bottom:26px;margin-inline:auto;width:max-content;z-index:2;
    font-family:var(--f-mono);font-size:.62rem;color:var(--mute);
    display:flex;flex-direction:column;align-items:center;gap:8px;
    opacity:0;transform:translateY(10px);animation:rise 1s 1.2s ease forwards;
  }
  .scrollcue span{letter-spacing:.24em;margin-right:-.24em}
  .scrollcue i{width:1px;height:34px;background:linear-gradient(var(--mute),transparent);animation:cue 1.8s ease-in-out infinite}

  /* ---------- SECTION SHELL ---------- */
  section{position:relative}
  .sect-head{max-width:720px;margin-bottom:clamp(34px,6vw,60px)}
  .sect-head h2{
    font-family:var(--f-jp);font-weight:700;letter-spacing:.01em;
    font-size:clamp(1.6rem,4.4vw,2.6rem);line-height:1.4;margin:.4em 0 0;
  }
  .sect-head p{color:var(--mute);margin:.9em 0 0;font-size:1rem}

  /* reveal */
  .reveal{opacity:0;transform:translateY(26px);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1)}
  .reveal.in{opacity:1;transform:none}
  .reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}
  @media(prefers-reduced-motion:reduce){
    .reveal{opacity:1;transform:none;transition:none}
    .hero .eyebrow,.lockup .ai,.lockup .x,.lockup .human,.thesis,.hero-actions,.scrollcue{animation:none;opacity:1;transform:none}
  }

  /* ---------- STANCE STRIP ---------- */
  .stance{padding:clamp(90px,13vw,150px) 0 clamp(30px,7vw,80px)}
  .stance .lead{
    font-family:var(--f-jp);font-weight:500;font-size:clamp(1.25rem,3.4vw,2rem);
    line-height:1.75;max-width:22ch;
  }
  .stance .lead .hl{position:relative;white-space:nowrap}
  .stance .lead .hl.ai{color:var(--ai)}
  .stance .lead .hl.hu{color:var(--human)}
  .stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin-top:56px;background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden}
  .stat{background:var(--ink);padding:26px 22px 22px}
  .stat .n{font-family:var(--f-disp);font-weight:600;font-size:clamp(1.7rem,4vw,2.4rem);letter-spacing:-.01em}
  .stat .n .s{color:var(--ai);font-size:.6em;margin-left:2px}
  .stat .l{font-family:var(--f-mono);font-size:.68rem;letter-spacing:.14em;color:var(--mute);text-transform:uppercase;margin-top:6px}
  @media(max-width:640px){.stats{grid-template-columns:1fr 1fr}}

  /* ---------- SERVICES ---------- */
  .services{padding:clamp(60px,9vw,110px) 0 clamp(70px,10vw,130px)}
  .svc-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
  @media(max-width:840px){.svc-grid{grid-template-columns:1fr}}
  .card{
    position:relative;display:flex;flex-direction:column;overflow:hidden;
    border:1px solid var(--line);border-radius:22px;padding:clamp(26px,3.6vw,42px);
    background:linear-gradient(180deg,var(--ink-2),var(--ink));
    transition:transform .5s cubic-bezier(.2,.7,.2,1),border-color .5s,box-shadow .5s;
  }
  .card::before{ /* accent glow, animates on hover */
    content:"";position:absolute;inset:0;opacity:.0;transition:opacity .55s;pointer-events:none;
    background:radial-gradient(120% 90% at 0% 0%,var(--c-glow),transparent 60%);
  }
  .card::after{ /* top accent bar */
    content:"";position:absolute;left:0;top:0;height:3px;width:100%;transform:scaleX(0);transform-origin:left;
    background:linear-gradient(90deg,var(--c),transparent);transition:transform .6s cubic-bezier(.2,.7,.2,1);
  }
  .card:hover{transform:translateY(-6px);border-color:var(--c-line);box-shadow:0 30px 70px -34px var(--c-glow)}
  .card:hover::before{opacity:1}
  .card:hover::after{transform:scaleX(1)}
  .card.ai{--c:var(--ai);--c-line:rgba(49,230,210,.5);--c-glow:rgba(49,230,210,.22)}
  .card.hu{--c:var(--human);--c-line:rgba(255,101,82,.5);--c-glow:rgba(255,101,82,.20)}
  .new-badge{
    position:absolute;top:16px;right:16px;z-index:6;overflow:hidden;
    font-family:var(--f-disp);font-weight:700;font-size:.72rem;letter-spacing:.09em;line-height:1;
    color:#04201D;background:linear-gradient(135deg,#7df3e6,#31E6D2);
    padding:7px 13px 6px;border-radius:100px;
    box-shadow:0 8px 20px -8px rgba(49,230,210,.8);
    animation:badgeBob 1.9s ease-in-out infinite, badgePulse 1.9s ease-out infinite;
  }
  .new-badge::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(120deg,transparent 35%,rgba(255,255,255,.7) 50%,transparent 65%);
    transform:translateX(-130%);animation:badgeShine 2.8s ease-in-out infinite;
  }
  @keyframes badgeBob{0%,100%{transform:translateY(0) rotate(-3deg)}50%{transform:translateY(-5px) rotate(3deg)}}
  @keyframes badgePulse{
    0%{box-shadow:0 8px 20px -8px rgba(49,230,210,.8),0 0 0 0 rgba(49,230,210,.5)}
    70%{box-shadow:0 8px 20px -8px rgba(49,230,210,.8),0 0 0 11px rgba(49,230,210,0)}
    100%{box-shadow:0 8px 20px -8px rgba(49,230,210,.8),0 0 0 0 rgba(49,230,210,0)}
  }
  @keyframes badgeShine{0%,55%{transform:translateX(-130%)}80%,100%{transform:translateX(130%)}}
  @media(prefers-reduced-motion:reduce){.new-badge{animation:none}.new-badge::after{display:none}}
  .card .tag{
    display:inline-flex;align-items:center;gap:9px;align-self:flex-start;
    font-family:var(--f-mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;
    color:var(--c);border:1px solid var(--c-line);border-radius:100px;padding:6px 13px;
  }
  .card .tag .pip{width:7px;height:7px;border-radius:50%;background:var(--c);box-shadow:0 0 12px var(--c)}
  .card h3{font-family:var(--f-jp);font-weight:700;font-size:clamp(1.35rem,3vw,1.85rem);margin:20px 0 0;line-height:1.45}
  .card h3 .en{display:block;font-family:var(--f-disp);font-weight:500;font-size:.7em;letter-spacing:.02em;color:var(--c);margin-top:8px}
  .card .desc{color:#C7CEDA;margin:16px 0 0;font-size:.98rem;line-height:1.85}
  .card ul{list-style:none;margin:22px 0 0;padding:0;display:flex;flex-direction:column;gap:11px}
  .card li{position:relative;padding-left:24px;font-size:.92rem;color:#D6DCE6}
  .card li::before{content:"";position:absolute;left:0;top:.62em;width:11px;height:2px;background:var(--c)}
  .card .price{margin-top:24px;font-size:.86rem;color:var(--mute);font-family:var(--f-jp)}
  .card .price b{color:var(--text);font-weight:700}
  .card .go{
    margin-top:26px;display:inline-flex;align-items:center;gap:12px;align-self:flex-start;
    font-family:var(--f-disp);font-weight:500;font-size:.95rem;color:var(--text);
    padding:13px 22px;border-radius:100px;background:rgba(255,255,255,.05);
    border:1px solid var(--c-line);transition:.3s;
  }
  .card .go .dom{font-family:var(--f-mono);font-size:.8em;color:var(--mute)}
  .card .go:hover{background:var(--c);color:#08110F;border-color:var(--c)}
  .card.hu .go:hover{color:#fff}
  .card .go:hover .dom{color:inherit;opacity:.75}
  .card .go .arw{transition:transform .3s}
  .card .go:hover .arw{transform:translateX(4px)}
  .card .fill{flex:1}

  /* ---------- COMPANY (paper) ---------- */
  .company{background:var(--paper);color:var(--paper-ink);padding:clamp(70px,10vw,120px) 0}
  .company .eyebrow{color:var(--paper-mute)}
  .company .sect-head h2{color:var(--paper-ink)}
  .company .sect-head p{color:var(--paper-mute)}
  .co-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(30px,5vw,60px)}
  @media(max-width:820px){.co-grid{grid-template-columns:1fr}}
  .spec{width:100%;border-collapse:collapse;font-size:.95rem}
  .spec th,.spec td{text-align:left;vertical-align:top;padding:16px 4px;border-bottom:1px solid var(--paper-2)}
  .spec th{width:34%;font-weight:700;color:var(--paper-ink);font-family:var(--f-jp)}
  .spec td{color:#3B3D45}
  .spec tr:first-child th,.spec tr:first-child td{border-top:1px solid var(--paper-2)}
  .name-img{display:inline-block;vertical-align:middle;width:auto;max-width:100%}
  .co-side{display:flex;flex-direction:column;gap:22px}
  .loc{border:1px solid var(--paper-2);border-radius:16px;padding:22px 24px;background:#fff}
  .loc .k{font-family:var(--f-mono);font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;color:var(--human-deep);margin:0}
  .loc h4{margin:8px 0 6px;font-family:var(--f-jp);font-weight:700;font-size:1.05rem}
  .loc p{margin:0;color:#4A4C54;font-size:.92rem;line-height:1.8}
  .loc a{color:var(--paper-ink);border-bottom:1px solid var(--paper-2);font-weight:500}
  .loc a:hover{border-color:var(--human)}
  .co-more{margin-top:44px}
  .co-more-btn{display:inline-flex;align-items:center;gap:10px;font-family:var(--f-disp);font-weight:500;font-size:.95rem;color:var(--paper-ink);border:1px solid #cfcabd;padding:14px 26px;border-radius:100px;transition:.28s;background:#fff}
  .co-more-btn:hover{border-color:var(--human);color:var(--human-deep);box-shadow:0 14px 34px -18px rgba(232,65,46,.5);transform:translateY(-2px)}
  .co-more-btn .arw{transition:transform .28s}
  .co-more-btn:hover .arw{transform:translateX(4px)}

  /* ---------- CONTACT ---------- */
  .contact{padding:clamp(80px,12vw,140px) 0;text-align:center;position:relative;overflow:hidden}
  .contact::before{
    content:"";position:absolute;inset:0;z-index:-1;
    background:radial-gradient(60% 100% at 30% 0%,rgba(49,230,210,.14),transparent 60%),
               radial-gradient(60% 100% at 74% 100%,rgba(255,101,82,.16),transparent 60%);
  }
  .contact h2{font-family:var(--f-jp);font-weight:700;font-size:clamp(1.7rem,4.6vw,2.9rem);line-height:1.4;margin:0 auto;max-width:20ch}
  .contact h2 em{font-family:var(--f-craft);font-style:italic;font-weight:500;color:var(--ai)}
  .nb{white-space:nowrap}
  .contact p{color:var(--mute);margin:18px auto 0;max-width:46ch}
  .tel{margin-top:38px;display:inline-flex;flex-direction:column;align-items:center;gap:2px}
  .tel a{font-family:var(--f-disp);font-weight:700;font-size:clamp(2rem,7vw,3.4rem);letter-spacing:.02em;color:#fff;transition:.3s}
  .tel a:hover{color:var(--ai)}
  .tel .sub{font-family:var(--f-mono);font-size:.7rem;letter-spacing:.14em;color:var(--mute);text-transform:uppercase}
  .contact-actions{margin-top:34px;display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

  /* ---------- FOOTER ---------- */
  footer{border-top:1px solid var(--line);padding:56px 0 40px;background:var(--ink)}
  .foot-top{display:flex;flex-wrap:wrap;justify-content:space-between;gap:30px}
  .foot-brand b{font-family:var(--f-disp);font-weight:700;font-size:1.1rem}
  .foot-brand .dot{color:var(--ai)}
  .foot-brand span{display:block;color:var(--mute);font-size:.78rem;margin-top:6px;max-width:34ch;line-height:1.7}
  .foot-nav{display:flex;flex-direction:column;gap:11px}
  .foot-nav a{color:var(--mute);font-size:.86rem;transition:.25s}
  .foot-nav a:hover{color:var(--text)}
  .foot-bot{margin-top:40px;padding-top:22px;border-top:1px solid var(--line);
    display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center}
  .foot-bot small{color:var(--mute);font-size:.74rem;line-height:1.7}
  .foot-bot .cr{font-family:var(--f-mono);font-size:.7rem;letter-spacing:.06em;color:var(--mute)}

  /* keyframes */
  @keyframes rise{to{opacity:1;transform:none}}
  @keyframes inLeft{to{opacity:1;transform:none}}
  @keyframes inRight{to{opacity:1;transform:none}}
  @keyframes pop{to{opacity:1;transform:scale(1) rotate(0)}}
  @keyframes cue{0%,100%{opacity:.3;transform:scaleY(.6)}50%{opacity:1;transform:scaleY(1)}}