:root{
    --paper:#FFFFFF;
    --paper-2:#FFFFFF;
    --ink:#141414;
    --ink-soft:#1A1A1A;
    --urban:#8B857A;
    --urban-soft:#A8A29A;
    --rule:rgba(20,20,20,0.12);
    --rule-light:rgba(255,255,255,0.22);
    --ease:cubic-bezier(0.22,1,0.36,1);
  }

  *{margin:0;padding:0;box-sizing:border-box;}
  html,body{
    background:var(--paper);color:var(--ink);
    font-family:'Space Grotesk',sans-serif;
    -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
    overflow-x:hidden;
  }
  body{font-weight:300;line-height:1.5;}
  ::selection{background:var(--ink);color:var(--paper);}
  a{color:inherit;text-decoration:none;}
  img{display:block;max-width:100%;}
  .mono{font-family:'JetBrains Mono',monospace;}

  /* ============ LOGO / WORDMARK ============ */
  .lang-mark{
    font-family:'Space Grotesk',sans-serif;
    font-weight:300;
    letter-spacing:0.02em;
    text-transform:uppercase;
    display:inline-flex;flex-direction:column;align-items:center;line-height:1;
  }
  .lang-mark__main{font-size:inherit;}
  .lang-mark__sub{
    font-size:0.22em;font-weight:300;letter-spacing:0.45em;
    margin-top:0.4em;text-transform:lowercase;opacity:0.85;
    padding-left:0.45em;
  }

  /* ============ HEADER ============ */
  .header{
    position:fixed;top:0;left:0;right:0;z-index:110;
    display:flex;justify-content:space-between;align-items:center;
    padding:28px 40px;
    mix-blend-mode:difference;color:var(--paper);
    transition:padding .6s var(--ease);
    pointer-events:none;
  }
  .header > *{pointer-events:auto;}
  .header.scrolled{padding:18px 40px;}
  .header .lang-mark{font-size:18px;}
  .header .lang-mark__sub{display:none;}
  .header .lang-mark__main{letter-spacing:0.12em;}
  .nav{display:flex;gap:36px;}
  .nav a{
    font-size:10px;font-weight:300;letter-spacing:0.32em;text-transform:uppercase;
    position:relative;padding:6px 2px;
    transition:opacity .4s var(--ease);
  }
  .nav a::after{
    content:"";position:absolute;left:0;bottom:2px;height:1px;width:0;
    background:currentColor;transition:width .5s var(--ease);
  }
  .nav a:hover::after{width:100%;}
  .menu-btn{display:none;}

  /* ============ HERO — PURE IMAGE ============ */
  .hero{
    position:relative;width:100vw;height:100vh;height:100svh;
    overflow:hidden;background:var(--ink);
  }
  .hero__link{
    position:absolute;inset:0;z-index:1;display:block;
  }
  .hero__slide{
    position:absolute;inset:0;opacity:0;
    transition:opacity 2.4s var(--ease);
    will-change:opacity;
  }
  .hero__slide.active{opacity:1;}
  .hero__img{
    position:absolute;inset:0;
    background-size:cover;background-position:center;
    transform:scale(1.06);
  }
  .hero__slide.active .hero__img{animation:kenburns 18s var(--ease) forwards;}
  @keyframes kenburns{
    from{transform:scale(1.08);}
    to{transform:scale(1.0);}
  }
  /* very subtle bottom vignette so scroll hint stays legible */
  .hero::after{
    content:"";position:absolute;inset:0;pointer-events:none;
    background:linear-gradient(180deg,rgba(0,0,0,0) 55%,rgba(0,0,0,0.42) 100%);
  }

  .hero__scroll{
    position:absolute;bottom:36px;left:50%;transform:translateX(-50%);
    color:var(--paper);opacity:0.85;z-index:2;
    font-size:9px;letter-spacing:0.44em;text-transform:uppercase;font-weight:400;
    display:flex;flex-direction:column;align-items:center;gap:14px;
  }
  .hero__scroll-line{
    width:1px;height:52px;background:var(--paper);position:relative;overflow:hidden;
  }
  .hero__scroll-line::after{
    content:"";position:absolute;top:0;left:0;width:100%;height:40%;
    background:rgba(0,0,0,0.6);animation:descend 2.6s var(--ease) infinite;
  }
  @keyframes descend{
    0%{transform:translateY(-100%);}
    60%{transform:translateY(260%);}
    100%{transform:translateY(260%);}
  }

  /* ============ STACKING PROJECTS ============ */
  .stack-intro{
    padding:140px 40px 80px;
    display:grid;grid-template-columns:1fr 10fr 1fr;
  }
  .stack-intro__section{
    font-size:10px;letter-spacing:0.42em;text-transform:uppercase;
    font-weight:400;opacity:0.5;grid-column:2/3;
  }
  .stack-intro__title{
    grid-column:2/3;margin-top:24px;
    font-size:clamp(32px,4.4vw,72px);
    font-weight:300;letter-spacing:-0.028em;line-height:1.05;
    max-width:900px;
  }
  .stack-intro__meta{
    grid-column:2/3;margin-top:48px;
    display:flex;justify-content:space-between;align-items:flex-end;
    padding-top:24px;border-top:1px solid var(--rule);
    font-size:10px;letter-spacing:0.32em;text-transform:uppercase;font-weight:400;opacity:0.65;
  }
  .stack-intro__counter{font-family:'JetBrains Mono',monospace;letter-spacing:0.04em;font-size:11px;opacity:0.6;}

  .stack{
    position:relative;
    /* gives each card a viewport of scroll space */
    padding-bottom:20vh;
  }
  .stack__card{
    position:sticky;top:0;
    height:100vh;height:100svh;
    width:100%;
    overflow:hidden;
    background:var(--ink);
    color:var(--paper);
    will-change:transform;
  }
  .stack__card-img{
    position:absolute;inset:0;
    background-size:cover;background-position:center;
    transform:scale(1.02);
  }
  .stack__card::after{
    content:"";position:absolute;inset:0;pointer-events:none;
    background:
      linear-gradient(180deg,rgba(0,0,0,0.35) 0%,rgba(0,0,0,0) 30%,rgba(0,0,0,0) 55%,rgba(0,0,0,0.5) 100%),
      linear-gradient(90deg,rgba(0,0,0,0.22) 0%,rgba(0,0,0,0) 35%);
  }

  /* overlay content */
  .stack__overlay{
    position:absolute;inset:0;z-index:2;
    pointer-events:none;
  }
  .stack__coords{
    position:absolute;top:80px;left:40px;
    font-family:'JetBrains Mono',monospace;
    font-size:10px;line-height:1.6;letter-spacing:0.04em;
    font-weight:300;opacity:0.85;
  }
  .stack__coords::before{
    content:"";display:block;width:24px;height:1px;background:var(--paper);
    opacity:0.5;margin-bottom:12px;
  }
  .stack__coords span{display:block;}

  .stack__location{
    position:absolute;top:92px;left:50%;transform:translateX(-50%);
    font-size:10px;letter-spacing:0.48em;text-transform:uppercase;
    font-weight:400;opacity:0.95;white-space:nowrap;
  }

  .stack__number{
    position:absolute;top:80px;right:40px;
    font-family:'JetBrains Mono',monospace;
    font-size:10px;letter-spacing:0.06em;font-weight:300;opacity:0.7;
  }

  .stack__title-wrap{
    position:absolute;top:30%;right:40px;
    max-width:72vw;text-align:right;
  }
  .stack__title{
    font-weight:300;
    font-size:clamp(56px,9.6vw,168px);
    line-height:0.9;letter-spacing:-0.028em;
    text-transform:lowercase;
  }
  .stack__title .line{display:block;}

  .stack__desc{
    position:absolute;right:40px;bottom:96px;
    max-width:360px;text-align:right;
    font-size:15px;line-height:1.55;font-weight:300;
    opacity:0.96;letter-spacing:-0.005em;
  }
  .stack__desc::before{
    content:"";display:inline-block;width:28px;height:1px;background:var(--paper);
    opacity:0.6;margin-bottom:14px;
  }

  .stack__credit{
    position:absolute;bottom:36px;left:40px;
    display:flex;align-items:center;gap:14px;
  }
  .stack__credit-avatar{
    width:34px;height:34px;border-radius:50%;
    background-size:cover;background-position:center;
    border:1px solid rgba(255,255,255,0.3);
  }
  .stack__credit-text{
    font-size:10px;letter-spacing:0.28em;text-transform:uppercase;
    font-weight:400;line-height:1.5;opacity:0.92;
  }
  .stack__credit-text small{display:block;opacity:0.55;font-weight:300;font-size:9px;letter-spacing:0.32em;}

  .stack__link{
    position:absolute;bottom:36px;right:40px;pointer-events:auto;
    font-size:10px;letter-spacing:0.32em;text-transform:uppercase;font-weight:400;
    display:inline-flex;align-items:center;gap:14px;
    padding:4px 2px;position:relative;
    color:var(--paper);
  }
  .stack__link::after{
    content:"";position:absolute;left:0;bottom:-2px;height:1px;width:100%;
    background:var(--paper);transform:scaleX(0.25);transform-origin:left;
    transition:transform .6s var(--ease);
  }
  .stack__link:hover::after{transform:scaleX(1);}
  .stack__link .arrow{display:inline-block;transition:transform .5s var(--ease);}
  .stack__link:hover .arrow{transform:translateX(8px);}

  /* ============ MANIFESTO ============ */
  .manifesto{
    background:var(--paper);
    padding:200px 40px 180px;
    display:grid;grid-template-columns:1fr 10fr 1fr;
    gap:0;position:relative;z-index:3;
  }
  .manifesto__section{
    position:absolute;top:60px;left:40px;
    font-size:10px;letter-spacing:0.42em;text-transform:uppercase;
    font-weight:400;opacity:0.5;
  }
  .manifesto__pagenum{
    position:absolute;top:60px;right:40px;
    font-family:'JetBrains Mono',monospace;
    font-size:10px;letter-spacing:0.06em;font-weight:300;opacity:0.5;
  }
  .manifesto__label{
    grid-column:1/2;
    font-size:10px;letter-spacing:0.42em;text-transform:uppercase;
    font-weight:400;
    writing-mode:vertical-rl;transform:rotate(180deg);
    align-self:start;margin-top:12px;
  }
  .manifesto__body{grid-column:2/3;max-width:1180px;}
  .manifesto__eyebrow{
    font-size:10px;letter-spacing:0.42em;text-transform:uppercase;
    font-weight:500;margin-bottom:56px;
    display:flex;align-items:center;gap:14px;
  }
  .manifesto__eyebrow::before{content:"";width:40px;height:1px;background:var(--ink);}
  .manifesto__text{
    font-size:clamp(28px,3.4vw,52px);
    line-height:1.14;letter-spacing:-0.022em;font-weight:300;
  }
  .manifesto__text em{font-style:italic;font-weight:300;}
  .manifesto__text strong{font-weight:500;font-style:normal;}
  .manifesto__footer{
    grid-column:2/3;margin-top:96px;
    display:grid;grid-template-columns:1fr 1fr 1fr;gap:48px;
    padding-top:28px;border-top:1px solid var(--rule);
    font-size:10px;letter-spacing:0.24em;text-transform:uppercase;font-weight:400;
  }
  .manifesto__footer div small{
    display:block;opacity:0.5;margin-bottom:8px;font-size:9px;letter-spacing:0.32em;
  }

  /* ============ QUOTE BLOCK ============ */
  .quote{
    background:var(--urban);color:var(--paper);
    padding:160px 40px;
    text-align:center;position:relative;z-index:3;
  }
  .quote__eyebrow{
    font-size:10px;letter-spacing:0.42em;text-transform:uppercase;
    font-weight:400;opacity:0.7;margin-bottom:56px;
  }
  .quote__text{
    font-size:clamp(28px,3.8vw,56px);
    font-weight:300;line-height:1.18;letter-spacing:-0.022em;
    max-width:900px;margin:0 auto;
  }
  .quote__text em{font-style:italic;font-weight:300;}

  /* ============ CTA ============ */
  .cta{
    background:var(--paper);
    padding:220px 40px;
    text-align:center;position:relative;z-index:3;
  }
  .cta__eyebrow{
    font-size:10px;letter-spacing:0.42em;text-transform:uppercase;
    font-weight:400;margin-bottom:60px;opacity:0.5;
  }
  .cta__link{
    display:inline-block;position:relative;
    font-size:clamp(40px,6vw,92px);
    font-weight:300;letter-spacing:-0.028em;
    text-transform:lowercase;padding-bottom:14px;
  }
  .cta__link::after{
    content:"";position:absolute;left:0;bottom:0;width:100%;height:1px;
    background:var(--ink);transform-origin:right center;transform:scaleX(0);
    transition:transform .9s var(--ease);
  }
  .cta__link:hover::after{transform-origin:left center;transform:scaleX(1);}
  .cta__link .arrow{
    display:inline-block;margin-left:22px;font-weight:300;
    transition:transform .6s var(--ease);
  }
  .cta__link:hover .arrow{transform:translateX(20px);}
  .cta__meta{
    margin-top:60px;
    font-size:10px;letter-spacing:0.32em;text-transform:uppercase;
    font-weight:300;opacity:0.5;
    display:flex;gap:40px;justify-content:center;
  }

  /* ============ FOOTER ============ */
  .footer{
    background:var(--ink);color:var(--paper);
    padding:100px 40px 40px;position:relative;z-index:3;
  }
  .footer__top{
    display:grid;grid-template-columns:1fr 1fr;gap:48px;
    padding-bottom:72px;border-bottom:1px solid var(--rule-light);
    align-items:start;
  }
  .footer__mark{font-size:96px;font-weight:300;}
  .footer__mark .lang-mark__sub{opacity:0.6;}
  .footer__contact{
    justify-self:end;text-align:right;
    font-size:12px;line-height:1.7;font-weight:300;letter-spacing:0.02em;
  }
  .footer__contact small{
    display:block;opacity:0.5;font-size:10px;letter-spacing:0.32em;
    text-transform:uppercase;margin-bottom:14px;
  }
  .footer__bottom{
    margin-top:40px;
    display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;
    font-size:10px;letter-spacing:0.28em;text-transform:uppercase;font-weight:400;opacity:0.75;
  }
  .footer__social{display:flex;gap:12px;}
  .footer__social a{
    display:inline-flex;align-items:center;justify-content:center;
    width:46px;height:46px;border:1px solid var(--rule-light);
    transition:background .4s var(--ease),color .4s var(--ease);
  }
  .footer__social a:hover{background:var(--paper);color:var(--ink);}
  .footer__social svg{width:18px;height:18px;stroke-width:1.3;}
  .footer__right{display:flex;gap:32px;align-items:center;}
  .footer__right a{position:relative;padding-bottom:2px;}
  .footer__right a::after{
    content:"";position:absolute;left:0;bottom:0;height:1px;width:0;background:currentColor;
    transition:width .5s var(--ease);
  }
  .footer__right a:hover::after{width:100%;}

  /* ============ RESPONSIVE ============ */
  @media (max-width:960px){
    .header{padding:20px 22px;}
    .nav{display:none;}
    .menu-btn{
      display:flex;flex-direction:column;gap:5px;
      background:transparent;border:none;cursor:pointer;padding:8px;color:inherit;
    }
    .menu-btn span{display:block;width:22px;height:1px;background:currentColor;}

    .stack-intro{padding:100px 22px 60px;grid-template-columns:1fr;}
    .stack-intro__section,.stack-intro__title,.stack-intro__meta{grid-column:1;}
    .stack-intro__meta{flex-wrap:wrap;gap:16px;}

    .stack__coords{top:70px;left:22px;}
    .stack__location{top:82px;font-size:9px;letter-spacing:0.38em;}
    .stack__number{top:70px;right:22px;}
    .stack__title-wrap{top:auto;bottom:260px;left:22px;right:22px;max-width:none;text-align:left;}
    .stack__desc{right:22px;bottom:160px;max-width:none;left:22px;text-align:left;font-size:13px;}
    .stack__desc::before{margin-bottom:10px;}
    .stack__credit{bottom:24px;left:22px;}
    .stack__link{bottom:24px;right:22px;}

    .manifesto{padding:140px 22px 120px;grid-template-columns:1fr;gap:48px;}
    .manifesto__label{writing-mode:horizontal-tb;transform:none;grid-column:1;}
    .manifesto__body{grid-column:1;}
    .manifesto__footer{grid-column:1;grid-template-columns:1fr 1fr;gap:28px;}
    .manifesto__section{left:22px;}
    .manifesto__pagenum{right:22px;}

    .quote{padding:120px 22px;}
    .cta{padding:140px 22px;}
    .cta__meta{flex-direction:column;gap:16px;}

    .footer{padding:72px 22px 32px;}
    .footer__top{grid-template-columns:1fr;gap:40px;}
    .footer__contact{justify-self:start;text-align:left;}
    .footer__mark{font-size:64px;}
    .footer__bottom{flex-direction:column;align-items:flex-start;gap:20px;}
    .footer__right{flex-wrap:wrap;gap:18px;}
  }

  /* ============ REVEAL ============ */
  .reveal{opacity:0;transform:translateY(28px);transition:opacity 1.2s var(--ease),transform 1.2s var(--ease);}
  .reveal.in{opacity:1;transform:translateY(0);}
  .reveal.d1{transition-delay:.1s;}
  .reveal.d2{transition-delay:.2s;}
  .reveal.d3{transition-delay:.3s;}


  /* ============ MOBILE MENU ============ */
  .menu-btn span{
    display:block;width:22px;height:1px;background:currentColor;
    transition:transform .4s var(--ease),opacity .3s var(--ease);
  }
  .menu-btn.open span:nth-child(1){transform:translateY(3px) rotate(45deg);}
  .menu-btn.open span:nth-child(2){transform:translateY(-3px) rotate(-45deg);}
  .mobile-menu{
    position:fixed;inset:0;z-index:105;
    background:var(--paper);color:var(--ink);
    display:flex;flex-direction:column;justify-content:space-between;
    padding:100px 24px 36px;
    opacity:0;pointer-events:none;
    transform:translateY(-8px);
    transition:opacity .45s var(--ease),transform .5s var(--ease);
    mix-blend-mode:normal;
  }
  .mobile-menu.open{opacity:1;pointer-events:auto;transform:translateY(0);}
  .mobile-menu__nav{
    display:flex;flex-direction:column;gap:0;margin-top:16px;
  }
  .mobile-menu__nav a{
    font-size:44px;font-weight:300;letter-spacing:-0.028em;line-height:1.15;
    text-transform:lowercase;
    padding:20px 0;border-bottom:1px solid var(--rule);
    display:flex;justify-content:space-between;align-items:center;
  }
  .mobile-menu__nav a .arrow{
    font-size:20px;opacity:0.5;transition:transform .5s var(--ease);
  }
  .mobile-menu__nav a:hover .arrow{transform:translateX(10px);}
  .mobile-menu__foot{
    font-size:10px;letter-spacing:0.32em;text-transform:uppercase;font-weight:400;opacity:0.55;
    display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  }
  @media (min-width:861px){
    .mobile-menu{display:none!important;}
  }