/* ==========================================================================
   94SESSION — Platform for Contemporary Thought
   Design tokens
   ========================================================================== */

:root{
  --paper:        #FFFFFF;
  --paper-alt:     #FAFAFA;
  --ink:          #000000;
  --ink-soft:     #3A3A3A;
  --ink-faint:    #8A8A8A;
  --accent:       #000000;   /* no color — black only, per brief */
  --accent-soft:  #000000;
  --line:         #DFDFDF;
  --line-soft:    #ECECEC;

  --f-display: 'Fraunces', 'Iowan Old Style', Georgia, serif;
  --f-body:    'Archivo', 'Helvetica Neue', Arial, sans-serif;
  --f-mono:    'Space Mono', 'Courier New', monospace;
  --f-hand:    'Caveat', cursive;

  --gutter: clamp(20px, 4vw, 56px);
}

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

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--f-body);
  -webkit-font-smoothing:antialiased;
  font-size:16px;
  line-height:1.5;
}

a{ color:inherit; text-decoration:none; }

::selection{ background:var(--accent); color:var(--paper); }

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

/* ---------- Utility type ---------- */
.eyebrow{
  font-family:var(--f-mono);
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--ink-faint);
}

.hairline{
  border:none;
  border-top:1px solid var(--line);
  margin:0;
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:20px var(--gutter);
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line);
}

.wordmark{
  font-family:var(--f-mono);
  font-size:14px;
  letter-spacing:.08em;
  font-weight:700;
  white-space:nowrap;
}
.wordmark sup{
  font-size:9px;
  color:var(--accent);
  margin-left:2px;
  top:-.8em;
}

.site-nav{
  display:flex;
  gap:clamp(14px,2.4vw,34px);
}
.site-nav a{
  font-family:var(--f-mono);
  font-size:11px;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--ink-soft);
  padding-bottom:3px;
  border-bottom:1px solid transparent;
  transition:color .2s ease, border-color .2s ease;
}
.site-nav a:hover,
.site-nav a[aria-current="page"]{
  color:var(--ink);
  border-color:var(--accent);
}

.nav-toggle{
  display:none;
  background:none;
  border:1px solid var(--line);
  border-radius:2px;
  padding:7px 10px;
  font-family:var(--f-mono);
  font-size:11px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--ink);
}

@media (max-width:720px){
  .site-nav{
    position:fixed;
    inset:64px 0 auto 0;
    flex-direction:column;
    gap:0;
    background:var(--paper);
    border-bottom:1px solid var(--line);
    transform:translateY(-8px);
    opacity:0;
    pointer-events:none;
    transition:opacity .2s ease, transform .2s ease;
  }
  .site-nav.open{
    opacity:1;
    transform:translateY(0);
    pointer-events:auto;
  }
  .site-nav a{
    padding:16px var(--gutter);
    border-bottom:1px solid var(--line-soft);
    border-radius:0;
  }
  .nav-toggle{ display:inline-block; }
}

/* ---------- Footer ---------- */
.site-footer{
  border-top:1px solid var(--line);
  padding:44px var(--gutter) 30px;
  display:grid;
  gap:28px;
  grid-template-columns:1.2fr 1fr 1fr;
}
@media (max-width:720px){
  .site-footer{ grid-template-columns:1fr; }
}
.site-footer h3{
  font-family:var(--f-mono);
  font-size:11px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--ink-faint);
  margin:0 0 12px;
  font-weight:400;
}
.site-footer p, .site-footer a{
  font-size:14px;
  color:var(--ink-soft);
  line-height:1.7;
}
.site-footer a:hover{ color:var(--accent); }
.footer-base{
  grid-column:1/-1;
  display:flex;
  justify-content:space-between;
  align-items:baseline;
  flex-wrap:wrap;
  gap:10px;
  margin-top:20px;
  padding-top:20px;
  border-top:1px solid var(--line-soft);
  font-family:var(--f-mono);
  font-size:10.5px;
  letter-spacing:.06em;
  color:var(--ink-faint);
  text-transform:uppercase;
}

/* ---------- Generic page shell ---------- */
main{ display:block; }
.wrap{
  max-width:1180px;
  margin:0 auto;
  padding:0 var(--gutter);
}

.page-head{
  padding:64px var(--gutter) 40px;
  border-bottom:1px solid var(--line);
}
.page-head .eyebrow{ margin-bottom:14px; }
.page-head h1{
  font-family:var(--f-display);
  font-weight:500;
  font-size:clamp(38px,6vw,72px);
  line-height:1.02;
  margin:0 0 18px;
  max-width:14ch;
}
.page-head .lede{
  font-size:clamp(15px,1.6vw,19px);
  color:var(--ink-soft);
  max-width:56ch;
  line-height:1.6;
  margin:0;
}

section{ padding:0 var(--gutter); }
.section-pad{ padding-top:72px; padding-bottom:72px; }
.section-pad.tight{ padding-top:48px; padding-bottom:48px; }
.section-pad.alt{ background:var(--paper-alt); }

h2.section-title{
  font-family:var(--f-display);
  font-weight:500;
  font-size:clamp(26px,3.4vw,40px);
  margin:0 0 28px;
  max-width:20ch;
}

.copy{
  font-size:15.5px;
  color:var(--ink-soft);
  line-height:1.75;
  max-width:62ch;
}
.copy + .copy{ margin-top:16px; }

.placeholder-note{
  display:inline-block;
  margin-top:18px;
  font-family:var(--f-mono);
  font-size:11px;
  color:var(--accent-soft);
  border:1px dashed var(--line);
  padding:6px 10px;
  border-radius:2px;
}

/* buttons / links */
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--f-mono);
  font-size:12px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--ink);
  border-bottom:1px solid var(--ink);
  padding-bottom:4px;
  transition:color .2s ease, border-color .2s ease, gap .2s ease;
}
.btn:hover{ color:var(--accent); border-color:var(--accent); gap:12px; }

/* ---------- Editorial entry blocks (Fairs / Exhibitions) ---------- */
.entry{
  padding:56px var(--gutter) 64px;
  border-top:1px solid var(--line);
}
.entry:first-child{ border-top:none; }
.entry-title{
  font-family:var(--f-display);
  font-style:italic;
  font-weight:500;
  font-size:clamp(30px,5vw,60px);
  line-height:1.08;
  margin:0 0 26px;
  max-width:18ch;
}
.entry-meta{
  display:flex;
  flex-wrap:wrap;
  column-gap:56px;
  row-gap:16px;
  margin-bottom:36px;
}
.entry-meta .field{ min-width:140px; }
.entry-meta .label{
  font-family:var(--f-mono);
  font-size:11px;
  font-weight:700;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--ink);
  margin-bottom:5px;
}
.entry-meta .value{
  font-size:15px;
  color:var(--ink-soft);
}
.entry-photos{
  display:flex;
  flex-direction:column;
  gap:16px;
}
.entry-photo{
  width:100%;
  aspect-ratio:16/10;
  background:linear-gradient(155deg, var(--paper-alt), var(--line-soft));
  border:1px solid var(--line);
}

/* ---------- Year-grouped index grid (Exhibitions / Fairs) ---------- */
.year-head{
  display:flex;
  align-items:baseline;
  gap:20px;
  padding:56px var(--gutter) 0;
}
.year-head .year-num{
  font-family:var(--f-display);
  font-weight:600;
  font-size:clamp(28px,3.4vw,46px);
  white-space:nowrap;
}
.year-head .year-line{
  flex:1;
  height:1px;
  background:var(--line);
}
.year-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:1px;
  background:var(--line);
  margin-top:28px;
}
.year-cell{
  background:var(--paper);
  padding:36px var(--gutter);
}
.year-cell .index-num{
  font-family:var(--f-mono);
  font-size:12px;
  color:var(--ink-faint);
}
.year-cell h3{
  font-family:var(--f-display);
  font-weight:600;
  font-size:22px;
  margin:10px 0 10px;
  max-width:22ch;
}
.year-cell p{
  font-size:14px;
  color:var(--ink-soft);
  line-height:1.7;
  margin:0;
  max-width:40ch;
}
@media (max-width:720px){ .year-grid{ grid-template-columns:1fr; } }

/* ---------- About: dynamic ghost-number approach list ---------- */
.approach-list{ border-top:1px solid var(--line); }
.approach-item{
  display:grid;
  grid-template-columns:160px 1fr;
  gap:24px;
  align-items:baseline;
  padding:52px var(--gutter);
  border-bottom:1px solid var(--line);
}
.approach-item:nth-child(even){
  grid-template-columns:1fr 160px;
}
.approach-item:nth-child(even) .ghost-num{ order:2; text-align:right; }
.approach-item:nth-child(even) .approach-body{ order:1; }
.ghost-num{
  font-family:var(--f-display);
  font-weight:600;
  font-size:clamp(64px,8.4vw,128px);
  line-height:.78;
  color:#EBEBEB;
  user-select:none;
}
.approach-body .tag{
  display:block;
  font-family:var(--f-mono);
  font-size:11px;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--ink-faint);
  margin-bottom:12px;
}
.approach-body h3{
  font-family:var(--f-display);
  font-style:italic;
  font-weight:500;
  font-size:clamp(26px,4.2vw,50px);
  margin:0 0 14px;
  line-height:1.1;
}
.approach-body p{
  font-size:15px;
  color:var(--ink-soft);
  line-height:1.7;
  max-width:48ch;
  margin:0;
}
@media (max-width:640px){
  .approach-item, .approach-item:nth-child(even){
    grid-template-columns:1fr;
    gap:6px;
  }
  .approach-item:nth-child(even) .ghost-num{ text-align:left; order:1; }
  .approach-item:nth-child(even) .approach-body{ order:2; }
  .ghost-num{ font-size:clamp(52px,18vw,90px); }
}

/* ---------- Programme layout: sticky year filter + entries (Exhibitions / Fairs) ---------- */
.programme{
  display:grid;
  grid-template-columns:150px 1fr;
  gap:40px;
  padding:8px var(--gutter) 100px;
}
.year-nav{
  position:sticky;
  top:90px;
  align-self:start;
  display:flex;
  flex-direction:column;
  gap:2px;
  padding-top:8px;
}
.year-nav .year-nav-label{
  font-family:var(--f-display);
  font-style:italic;
  font-size:17px;
  color:var(--ink);
  margin-bottom:12px;
}
.year-nav button{
  background:none;
  border:none;
  text-align:left;
  cursor:pointer;
  padding:2px 0;
  font-family:var(--f-body);
  font-weight:700;
  font-size:clamp(19px,2vw,25px);
  line-height:1.45;
  color:var(--ink-faint);
  transition:color .2s ease;
}
.year-nav button.is-active{
  color:var(--ink);
  text-decoration:underline;
  text-underline-offset:6px;
}
.year-nav button:hover{ color:var(--ink); }

.programme-content{ min-width:0; }

.year-section{
  padding:0 0 64px;
  scroll-margin-top:100px;
}
.year-section .year-flag{
  font-family:var(--f-display);
  font-weight:600;
  font-size:clamp(24px,3vw,34px);
  margin-bottom:28px;
}

.photo-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:48px 32px;
}
.photo-card .photo{
  display:block;
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  background:var(--paper-alt);
  border:1px solid var(--line);
  margin-bottom:14px;
}
.photo-card .cap-name{
  font-family:var(--f-body);
  font-weight:700;
  font-size:13px;
  letter-spacing:.03em;
  text-transform:uppercase;
  margin-bottom:5px;
  line-height:1.4;
}
.photo-card .cap-title{
  font-family:var(--f-display);
  font-style:italic;
  font-weight:400;
  font-size:15.5px;
  color:var(--ink-soft);
  line-height:1.45;
}
.photo-card .cap-meta{
  font-family:var(--f-mono);
  font-size:11px;
  letter-spacing:.04em;
  color:var(--ink-faint);
  margin-top:6px;
}

@media (max-width:820px){
  .programme{ grid-template-columns:1fr; }
  .year-nav{
    position:static;
    flex-direction:row;
    flex-wrap:wrap;
    gap:4px 16px;
    padding-top:0;
    padding-bottom:20px;
    margin-bottom:12px;
    border-bottom:1px solid var(--line);
  }
  .year-nav .year-nav-label{ width:100%; margin-bottom:6px; }
  .photo-grid{ grid-template-columns:1fr; gap:36px; }
}

/* ---------- About: flowing discipline stream ---------- */
.discipline-stream{
  font-family:var(--f-display);
  font-style:italic;
  font-weight:500;
  font-size:clamp(22px,3.6vw,42px);
  line-height:1.4;
  color:var(--ink);
  max-width:920px;
  margin:0;
}
.discipline-stream .sep{
  font-style:normal;
  color:var(--ink-faint);
  margin:0 8px;
}

/* ---------- Index / listing rows ---------- */
.index-list{ list-style:none; margin:0; padding:0; }
.index-row{
  display:grid;
  grid-template-columns:52px 1fr auto;
  align-items:baseline;
  gap:18px;
  padding:22px 0;
  border-bottom:1px solid var(--line-soft);
}
.index-row:first-child{ border-top:1px solid var(--line-soft); }
.index-num{
  font-family:var(--f-mono);
  font-size:12px;
  color:var(--ink-faint);
}
.index-row h3{
  font-family:var(--f-display);
  font-weight:500;
  font-size:clamp(19px,2.4vw,26px);
  margin:0;
}
.index-row .index-desc{
  grid-column:2;
  font-size:14px;
  color:var(--ink-soft);
  max-width:56ch;
  margin-top:6px;
}
.index-row .index-tag{
  font-family:var(--f-mono);
  font-size:11px;
  letter-spacing:.06em;
  text-transform:uppercase;
  color:var(--ink-faint);
  white-space:nowrap;
}
@media (max-width:640px){
  .index-row{ grid-template-columns:36px 1fr; }
  .index-row .index-tag{ grid-column:2; margin-top:6px; }
}