@import "tokens.css";

/* ---------- base ---------- */
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--surface-page);
  font-family:var(--font-body);
  color:var(--fg-default);
}
img{max-width:100%;display:block}
a{color:var(--brand-primary);text-decoration:none}
a:hover{color:var(--brand-primary-hover)}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

.container{max-width:1312px;margin:0 auto;padding:0 var(--space-16)}

/* Full-bleed sections keep an edge-to-edge background while their content
   stays capped at a comfortable reading width on very wide viewports. */
:root{
  --content-max:1440px;
  --edge-pad:max(var(--space-16), calc((100% - var(--content-max)) / 2 + var(--space-16)));
}

/* ---------- eyebrow / tag ---------- */
.eyebrow{
  font:700 var(--text-small)/1 var(--font-display);
  letter-spacing:var(--tracking-wide);
  text-transform:uppercase;
  color:var(--brand-primary);
  margin:0;
}
.tag{
  font:700 var(--text-small)/1 var(--font-display);
  letter-spacing:var(--tracking-wide);
  text-transform:uppercase;
  color:var(--fg-default);
}

/* ---------- button ---------- */
.btn{
  font-family:var(--font-display);
  font-size:14px;
  font-weight:var(--fw-medium);
  padding:8px 22px;
  border-radius:0;
  text-decoration:none;
  display:inline-block;
  cursor:pointer;
  border:1px solid var(--brand-primary);
  color:var(--brand-primary);
  background:transparent;
  transition:border-radius var(--duration-default) var(--ease-spring),
             color var(--duration-fast) var(--ease-default),
             background var(--duration-fast) var(--ease-default);
}
.btn:hover{color:#fff;background:var(--brand-primary);border-radius:var(--radius-hover)}
.btn:active{border-radius:var(--radius-full)}
.btn.btn-block{display:block;width:100%;text-align:center}
.btn-linkedin{border-color:var(--brand-secondary);color:var(--brand-secondary)}
.btn-linkedin:hover{color:#fff;background:var(--brand-secondary)}

/* ---------- nav link (desktop header) ---------- */
.navlink{
  font:var(--fw-medium) var(--text-small)/1 var(--font-display);
  text-transform:uppercase;
  letter-spacing:var(--tracking-wider);
  color:var(--fg-default);
  border:1px solid transparent;
  padding:8px 4px;
  transition:color var(--duration-fast) var(--ease-default);
}
.navlink:hover{color:var(--brand-primary)}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:20;
  height:74px;
  background:transparent;
  border-bottom:1px solid transparent;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 var(--edge-pad);
  transition:background-color var(--duration-default) var(--ease-default),
             border-color var(--duration-default) var(--ease-default);
}
.site-header.is-scrolled{
  background:var(--surface-cream);
  border-bottom-color:var(--border-cream);
}
.site-header .logo img{height:32px;width:auto}
.site-header .nav{display:flex;gap:var(--space-8);align-items:center}
.nav-toggle{
  display:none;
  flex-direction:column;gap:5px;
  width:44px;height:44px;align-items:flex-end;justify-content:center;
  background:none;border:0;padding:12px 0;cursor:pointer;
}
.nav-toggle span{width:22px;height:1.5px;background:var(--ink-900);transition:transform .2s var(--ease-default),opacity .2s}
.nav-toggle[aria-expanded="true"] span:first-child{transform:translateY(3.25px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:last-child{transform:translateY(-3.25px) rotate(-45deg)}
.mobile-menu{display:none}
.back-link{
  display:none;
  align-items:center;gap:10px;
  font:400 15px/1 var(--font-display);
  color:var(--fg-default);
}
.back-link .arrow{font-size:17px;color:var(--brand-primary)}

/* ---------- hero ---------- */
.hero{
  position:relative;
  background:var(--surface-cream);
  border-bottom:1px solid var(--border-cream);
  padding:calc(74px + var(--space-24)) var(--edge-pad) 104px;
  overflow:hidden;
}
.hero-inner{position:relative;max-width:1060px;display:flex;flex-direction:column;gap:34px}
.hero-title{
  font:300 clamp(40px,5.4vw,86px)/1.05 var(--font-display);
  letter-spacing:var(--tracking-tight);
  color:var(--fg-strong);
  margin:0;
}
.hero-sub{font:400 18px/1.6 var(--font-body);color:var(--fg-default);max-width:56ch;margin:0}
.blob-canvas-host{position:absolute;inset:0;overflow:hidden;pointer-events:none}
.blob-canvas-host canvas{position:absolute;inset:0;width:100%;height:100%}

/* ---------- section scaffolding ---------- */
.section{padding:var(--space-24) var(--edge-pad) 0}
.section-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:38px}

/* ---------- work list (homepage) ---------- */
.work-feature{display:flex;flex-direction:column;gap:12px;margin-bottom:28px}
.work-feature img{width:100%;height:560px;object-fit:cover}
.work-feature-text{display:flex;flex-direction:column;gap:14px;max-width:640px;align-items:flex-start;padding:22px 0 0}
.work-feature-title{font:300 52px/1.06 var(--font-display);letter-spacing:var(--tracking-tight);color:var(--fg-strong);margin:0}
.work-feature-desc{font:400 18px/1.6 var(--font-body);color:var(--fg-default);margin:0}

.work-grid{display:grid;grid-template-columns:1fr 1fr;gap:0;border-top:1px solid var(--border-subtle)}
.work-card{padding:56px 56px 56px 0;border-right:1px solid var(--border-subtle);display:flex;flex-direction:column;gap:18px;align-items:flex-start}
.work-card:last-child{border-right:0;padding:56px 0 56px 56px}
.work-card img{width:100%;height:320px;object-fit:cover}
.work-card-title{font:300 34px/1.1 var(--font-display);letter-spacing:var(--tracking-tight);color:var(--fg-strong);margin:0}
.work-card-desc{font:400 16px/1.6 var(--font-body);color:var(--fg-default);margin:0}

/* ---------- about ---------- */
.about{
  padding:var(--space-24) var(--edge-pad);
  display:grid;grid-template-columns:340px 1fr;gap:64px;align-items:start;
}
.about-portrait-wrap{display:flex;flex-direction:column;gap:24px}
.about-portrait{width:180px;height:180px;object-fit:cover;border-radius:50%;align-self:flex-end}
.about-body{display:flex;flex-direction:column;gap:26px;max-width:64ch}
.about-title{font:300 34px/1.2 var(--font-display);letter-spacing:var(--tracking-tight);color:var(--fg-strong);margin:0}
.about-desc{font:400 17px/1.7 var(--font-body);color:var(--fg-default);margin:0}
.about-actions{display:flex;gap:14px}

/* ---------- footer ---------- */
.site-footer{
  background:var(--surface-cream);
  border-top:1px solid var(--border-cream);
  padding:var(--space-16) var(--edge-pad);
  display:flex;justify-content:space-between;align-items:flex-end;
  gap:var(--space-8);
}
.site-footer .brand{display:flex;flex-direction:column;gap:16px}
.site-footer .brand img{height:20px;width:auto}
.site-footer .location{font:400 14px/1.5 var(--font-body);color:var(--fg-muted)}
.site-footer .links{display:flex;gap:32px;font:400 14px/1 var(--font-display);color:var(--fg-default)}
.site-footer .links a{color:inherit}

/* =====================================================================
   Case study template
   ===================================================================== */
.cs-hero{
  background:var(--surface-cream);
  border-bottom:1px solid var(--border-cream);
  padding:170px var(--edge-pad) 80px;
  display:grid;grid-template-columns:1fr 320px;gap:72px;align-items:end;
}
.cs-hero-main{display:flex;flex-direction:column;gap:26px}
.cs-hero-title{font:300 76px/1.04 var(--font-display);letter-spacing:var(--tracking-tight);color:var(--fg-strong);max-width:20ch;margin:0}
.cs-hero-desc{font:400 20px/1.55 var(--font-body);color:var(--fg-default);max-width:52ch;margin:0}
.cs-meta{border-left:1px solid var(--border-warm);padding-left:28px;display:flex;flex-direction:column;gap:22px}
.cs-meta-item{display:flex;flex-direction:column;gap:6px}
.cs-meta-label{font:700 11px/1 var(--font-display);letter-spacing:var(--tracking-wider);text-transform:uppercase;color:var(--fg-muted)}
.cs-meta-value{font:400 15px/1.5 var(--font-body);color:var(--fg-default)}

.cs-hero-image{width:100%;height:620px;object-fit:cover}

.cs-block{padding:96px var(--edge-pad) 0;display:grid;grid-template-columns:280px 1fr;gap:64px;align-items:start}
.cs-block-label{font:700 14px/1 var(--font-display);letter-spacing:var(--tracking-wide);text-transform:uppercase;color:var(--brand-primary)}
.cs-block-body{display:flex;flex-direction:column;gap:24px;max-width:64ch}
.cs-block-title{font:300 34px/1.2 var(--font-display);letter-spacing:var(--tracking-tight);color:var(--fg-strong);margin:0}
.cs-block-text{font:400 17px/1.7 var(--font-body);color:var(--fg-default);margin:0}

.cs-process-body{display:flex;flex-direction:column;gap:40px}
.cs-image-pair{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--border-subtle);border:1px solid var(--border-subtle)}
.cs-image-pair img{width:100%;height:340px;object-fit:cover;background:#fff}

.cs-principles{display:grid;grid-template-columns:repeat(var(--principle-count,3),1fr);gap:0;border-top:1px solid var(--border-subtle)}
.cs-principle{padding:40px;border-right:1px solid var(--border-subtle);display:flex;flex-direction:column;gap:10px}
.cs-principle:first-child{padding-left:0}
.cs-principle:last-child{border-right:0;padding-right:0}
.cs-principle-title{font:500 20px/1.25 var(--font-display);color:var(--fg-strong);margin:0}
.cs-principle-text{font:400 15px/1.6 var(--font-body);color:var(--fg-default);margin:0}

.cs-learned{
  margin:96px 0 0;
  background:var(--surface-cream);
  border-top:1px solid var(--border-cream);
  border-bottom:1px solid var(--border-cream);
  padding:88px var(--edge-pad);
  display:grid;grid-template-columns:280px 1fr;gap:64px;align-items:start;
}

.cs-next{padding:var(--space-16) var(--edge-pad);display:flex;justify-content:space-between;align-items:center;gap:40px}
.cs-next-label{font:700 11px/1 var(--font-display);letter-spacing:var(--tracking-wider);text-transform:uppercase;color:var(--fg-muted);margin:0 0 10px}
.cs-next-title{font:300 40px/1.1 var(--font-display);letter-spacing:var(--tracking-tight);color:var(--fg-strong);margin:0}

/* =====================================================================
   Mobile breakpoint — turns 5a / 5b
   ===================================================================== */
@media (max-width:860px){
  .container{padding:0 24px}

  .site-header{height:60px;padding:0 24px}
  .site-header .nav{display:none}
  .site-header.has-mobile-nav .nav-toggle{display:flex}
  .site-header.cs-header .logo{order:2}
  .site-header.cs-header .back-link{display:flex;order:1}

  .mobile-menu.open{
    display:flex;flex-direction:column;
    position:fixed;inset:0;z-index:19;
    background:var(--surface-cream);
    padding:92px 24px 32px;gap:4px;
  }
  .mobile-menu a:not(.btn){
    font:400 20px/1 var(--font-display);color:var(--fg-strong);
    padding:16px 0;border-bottom:1px solid var(--border-cream);
  }
  .mobile-menu .btn{margin-top:20px}

  .hero{padding:124px 24px 56px}
  .hero-inner{gap:22px}
  .hero-title{font-size:40px;line-height:1.06}
  .hero-sub{font-size:16px}

  .section{padding:56px 24px 0}
  .section-head{margin-bottom:24px}

  .work-feature{gap:16px;padding-bottom:44px}
  .work-feature img{height:280px}
  .work-feature-text{padding-top:0}
  .work-feature-title{font-size:34px;line-height:1.08}
  .work-feature-desc{font-size:16px}

  .work-grid{display:flex;flex-direction:column;gap:0;border-top:0}
  .work-card{width:100%;padding:44px 0!important;border-right:0!important;border-top:1px solid var(--border-subtle)}
  .work-card img{height:240px}
  .work-card-title{font-size:30px;line-height:1.1}

  .about{
    grid-template-columns:1fr;gap:22px;padding:12px 24px 64px;
  }
  .about-portrait-wrap{order:-1}
  .about-portrait{width:120px;height:120px;align-self:center;margin-top:44px}
  .about-title{font-size:28px}
  .about-actions{flex-direction:column;align-items:stretch;gap:12px}

  .site-footer{padding:36px 24px 40px;flex-direction:column-reverse;align-items:stretch;gap:24px}
  .site-footer .links{order:-1}

  /* case study */
  .cs-hero{padding:112px 24px 40px;grid-template-columns:1fr;gap:22px}
  .cs-hero-title{font-size:44px;line-height:1.04}
  .cs-hero-desc{font-size:17px;line-height:1.55}
  .cs-meta{border-left:0;border-top:1px solid var(--border-warm);padding-left:0;padding-top:22px;gap:16px}
  .cs-meta-item{flex-direction:row;justify-content:space-between;gap:20px}
  .cs-meta-item .cs-meta-label{flex:0 0 80px}
  .cs-meta-item .cs-meta-value{flex:1}

  .cs-hero-image{height:300px}

  .cs-block{grid-template-columns:1fr;gap:18px;padding:56px 24px 0}
  .cs-block-title{font-size:28px}

  .cs-process-body{gap:24px}
  .cs-image-pair{border-top:1px solid var(--border-subtle);border-bottom:1px solid var(--border-subtle);border-left:0;border-right:0;margin:24px 0 0}
  .cs-image-pair img{height:240px}
  .cs-principles{grid-template-columns:1fr!important;border-top:0}
  .cs-principle{padding:28px 0!important;border-right:0!important;border-bottom:1px solid var(--border-subtle)}
  .cs-principle:last-child{border-bottom:0;padding-bottom:44px!important}
  .cs-principle-title{font-size:19px}

  .cs-learned{margin:0;padding:52px 24px;grid-template-columns:1fr;gap:18px}

  .cs-next{padding:40px 24px;flex-direction:column;align-items:flex-start;gap:18px}
  .cs-next-title{font-size:32px}
}