/* ============================================================
   BerlinArtOffice — v3 stylesheet
   Direction: institutional / museum-editorial minimalism
   (Whitechapel Gallery, Hamburger Bahnhof, Serpentine Galleries)
   White space carries the design, not color blocking. Typography
   hierarchy + hairline rules + generous margins. One restrained
   accent color used sparingly, the way an institution uses its
   single brand red on a wall label or a ticket.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Big+Shoulders+Display:wght@700;800&family=Bricolage+Grotesque:wght@500;600;700&family=Inter:wght@300;400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root{
  --bg:        #ffffff;
  --bg-soft:   #f6f5f1;
  --ink:       #121212;
  --grey:      #6e6e6c;
  --grey-soft: #a3a19a;
  --line:      #e3e1d9;
  --accent:    #b3311f;

  --display: 'Bricolage Grotesque', sans-serif;
  --headline: 'Big Shoulders Display', sans-serif;
  --body: 'Inter', sans-serif;
  --mono: 'IBM Plex Mono', monospace;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }

body{
  margin:0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--body);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg{ max-width:100%; display:block; }
a{ color: inherit; text-decoration: none; }

.wrap{
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 44px;
}

.eyebrow{
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--grey);
  display:block;
  margin-bottom: 18px;
}

/* ---------------- header ---------------- */
header{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav{
  display:flex;
  align-items:center;
  justify-content: space-between;
  padding: 22px 0;
}
.logo{
  font-family: var(--headline);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 19px;
  letter-spacing: 0.01em;
}
.navlinks{
  display:flex;
  align-items:center;
  gap: 26px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.navlinks a{ opacity:0.62; transition: opacity .2s; position:relative; }
.navlinks a:hover, .navlinks a.active{ opacity:1; }
.navlinks a.active::after{
  content:"";
  position:absolute; left:0; right:0; bottom:-6px;
  height:1px; background: var(--accent);
}
.lang-toggle{
  border: 1px solid var(--line);
  padding: 6px 12px;
  border-radius: 100px;
  transition: all .2s;
}
.lang-toggle:hover{ background: var(--ink); color: #fff; border-color: var(--ink); }

.mobile-toggle{ display:none; }

/* ---------------- hero ---------------- */
.hero{
  padding: 108px 0 84px;
  border-bottom: 1px solid var(--line);
}
.hero h1{
  font-family: var(--headline);
  font-weight: 800;
  text-transform: uppercase;
  font-size: clamp(38px, 6vw, 82px);
  line-height: 0.98;
  letter-spacing: 0.002em;
  max-width: 17ch;
  margin: 0 0 30px;
}
.hero h1 em{
  font-style: normal;
  color: var(--accent);
}
.hero p.lede{
  max-width: 52ch;
  font-size: 18px;
  color: var(--grey);
  margin: 0 0 36px;
  font-weight: 300;
}
.hero-mark{
  margin-top: 46px;
}

.btn{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 13px 22px;
  border: 1px solid var(--ink);
  color: var(--ink);
  transition: all .2s ease;
}
.btn:hover{ background: var(--ink); color: #fff; }
.btn.solid{ background: var(--ink); color: #fff; }
.btn.solid:hover{ background: var(--accent); border-color: var(--accent); }

/* page header (non-hero pages) */
.page-head{
  padding: 76px 0 56px;
  border-bottom: 1px solid var(--line);
}
.page-head h1{
  font-family: var(--headline);
  font-weight: 800;
  text-transform: uppercase;
  font-size: clamp(34px, 5vw, 60px);
  letter-spacing: 0.002em;
  line-height: 1;
  max-width: 18ch;
  margin: 0;
}
.page-head h1 em{ font-style: normal; color: var(--accent); }
.page-head p.lede{
  max-width: 58ch;
  color: var(--grey);
  font-size: 17px;
  font-weight: 300;
  margin-top: 22px;
}

/* ---------------- generic section ---------------- */
section{ padding: 84px 0; border-bottom: 1px solid var(--line); }
section:last-of-type{ border-bottom:none; }
section.soft{ background: var(--bg-soft); }
section.tight{ padding: 60px 0; }
section.no-line{ border-bottom:none; }

h2{
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(24px, 3vw, 34px);
  letter-spacing: -0.005em;
  line-height: 1.18;
  margin: 0;
}
h2 em{ font-style: normal; font-weight: 700; color: var(--accent); }

h3{
  font-family: var(--display);
  font-weight: 600;
  font-size: 20px;
  letter-spacing: -0.005em;
  margin: 0 0 10px;
}

.section-head{
  display:grid;
  grid-template-columns: 0.9fr 1.2fr;
  gap: 60px;
  margin-bottom: 52px;
  align-items: start;
}
.section-head p{
  color: var(--grey);
  font-size: 16.5px;
  font-weight: 300;
  max-width: 54ch;
  margin: 0;
}

/* ---------------- checklist rows ---------------- */
.checklist{ border-top: 1px solid var(--line); }
.check-item{
  display:grid;
  grid-template-columns: 130px 1fr 1.3fr;
  gap: 28px;
  padding: 32px 0;
  border-bottom: 1px solid var(--line);
}
.check-item .code{
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--accent);
  padding-top: 4px;
}
.check-item p{
  color: var(--grey);
  font-size: 15.5px;
  font-weight: 300;
  margin:0;
  max-width: 54ch;
}

/* ---------------- text list ---------------- */
ul.plain{
  list-style: none;
  padding: 0;
  margin: 14px 0 0;
  columns: 2;
  column-gap: 40px;
}
ul.plain li{
  font-size: 15px;
  color: var(--grey);
  padding: 7px 0;
  border-bottom: 1px solid var(--line);
  break-inside: avoid;
}

/* ---------------- prose block ---------------- */
.prose{
  max-width: 68ch;
}
.prose p{
  font-size: 17px;
  font-weight: 300;
  color: var(--ink);
  margin: 0 0 20px;
}
.prose p.muted{ color: var(--grey); }

.two-col{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

/* ---------------- team ---------------- */
.team-card{
  display:grid;
  grid-template-columns: 200px 1fr;
  gap: 44px;
  padding: 44px 0;
  border-bottom: 1px solid var(--line);
}
.team-card:first-child{ padding-top: 0; }
.avatar-frame{ border: 1px solid var(--line); }
.avatar-frame svg{ width:100%; height:auto; display:block; }
.avatar-cap{
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.05em;
  color: var(--grey-soft);
  text-align:center;
  padding-top: 9px;
  text-transform: uppercase;
}
.team-bio .role{
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  display:block;
  margin-bottom: 16px;
}
.team-bio p{
  color: var(--grey);
  font-weight: 300;
  font-size: 15.5px;
  max-width: 66ch;
}
.team-bio em{ font-style: normal; color: var(--ink); font-weight: 600; }
.credit-strip{
  margin-top: 18px;
  display:flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--grey-soft);
}

/* ---------------- project / case cards ---------------- */
.case{
  padding: 44px 0;
  border-bottom: 1px solid var(--line);
  display:grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 44px;
}
.case:first-child{ padding-top:0; }
.case .meta{
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--grey);
  line-height: 1.9;
}
.case h3{ font-size: 24px; margin-bottom: 6px; }
.case .sub{
  font-family: var(--mono);
  font-style: normal;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--grey);
  font-size: 12px;
  margin-bottom: 14px;
  display:block;
}
.case p{
  color: var(--grey);
  font-weight: 300;
  font-size: 15.5px;
  max-width: 62ch;
}
.case .role-tags{
  margin-top: 16px;
  display:flex;
  flex-wrap: wrap;
  gap: 8px;
}
.case .role-tags span{
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 1px solid var(--line);
  padding: 5px 10px;
  color: var(--grey);
}

/* ---------------- stat / step columns ---------------- */
.steps{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-top: 40px;
}
.step .num{
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
  margin-bottom: 10px;
}
.step h3{ font-size: 17px; margin-bottom: 8px; }
.step p{ color: var(--grey); font-size: 14.5px; font-weight: 300; margin:0; }

/* ---------------- placeholder / framework note ---------------- */
.note-box{
  border: 1px dashed var(--line);
  padding: 26px 28px;
  margin-top: 30px;
  font-size: 14.5px;
  color: var(--grey);
  font-weight: 300;
  max-width: 62ch;
}
.note-box strong{ color: var(--ink); font-weight: 500; }

/* ---------------- contact form ---------------- */
.hp-field{ position:absolute; left:-9999px; }
.contact-grid{
  display:grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 70px;
}
.info-block{ margin-bottom: 34px; }
.info-block .label{
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--grey-soft);
  margin-bottom: 8px;
}
.info-block .val{ font-size: 17px; }
.info-block a.val:hover{ color: var(--accent); }

.field{ margin-bottom: 26px; }
.field label{
  display:block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--grey);
  margin-bottom: 8px;
}
.field input, .field select, .field textarea{
  width: 100%;
  border: none;
  border-bottom: 1px solid var(--line);
  background: transparent;
  padding: 10px 2px;
  font-family: var(--body);
  font-size: 16px;
  color: var(--ink);
  outline: none;
  transition: border-color .2s ease;
  resize: vertical;
  appearance: none;
}
.field select{
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%236e6e6c'%3E%3Cpath d='M5 8l5 5 5-5H5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 2px center;
}
.field input:focus, .field select:focus, .field textarea:focus{ border-bottom-color: var(--accent); }
.field-row{ display:grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.form-note{ font-family: var(--mono); font-size: 13px; color: var(--accent); margin-top: 16px; }

/* ---------------- footer ---------------- */
footer{
  padding: 40px 0 32px;
}
.footer-grid{
  display:flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--grey);
  text-transform: uppercase;
  letter-spacing: .03em;
}
.footer-grid a:hover{ color: var(--accent); }
.footer-cols{ display:flex; gap: 60px; flex-wrap: wrap; }
.footer-cols div{ display:flex; flex-direction:column; gap: 8px; }

/* ---------------- reveal ---------------- */
.reveal{ opacity:0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in{ opacity:1; transform:none; }
@media (prefers-reduced-motion: reduce){ .reveal{ opacity:1; transform:none; transition:none; } }

/* ---------------- responsive ---------------- */
@media (max-width: 900px){
  .section-head{ grid-template-columns: 1fr; gap: 20px; }
  .two-col{ grid-template-columns: 1fr; gap: 30px; }
  .team-card{ grid-template-columns: 1fr; }
  .avatar-frame{ max-width: 200px; }
  .case{ grid-template-columns: 1fr; gap: 18px; }
  .steps{ grid-template-columns: 1fr 1fr; }
  .contact-grid{ grid-template-columns: 1fr; gap: 40px; }
  .check-item{ grid-template-columns: 1fr; gap: 8px; }
  ul.plain{ columns: 1; }
}
@media (max-width: 600px){
  .wrap{ padding: 0 22px; }
  section{ padding: 56px 0; }
  .hero{ padding: 84px 0 56px; }
  .navlinks a:not(.lang-toggle){ display:none; }
  .field-row{ grid-template-columns: 1fr; }
  .steps{ grid-template-columns: 1fr; }
}