/* =========================================================
   DIALLO HOUSE — Gallery of African Art & Antiquities
   Design tokens
   ========================================================= */
:root{
  --void:       #15120D;   /* gallery wall, near-black warm charcoal */
  --void-soft:  #1D1912;   /* raised panel */
  --void-line:  rgba(238,230,214,0.14);
  --bone:       #EEE6D6;   /* primary text on dark */
  --bone-dim:   #C7BCA4;   /* secondary text on dark */
  --paper:      #F4EEE1;   /* light section background */
  --paper-line: rgba(21,18,13,0.12);
  --ink:        #211C14;   /* text on light */
  --ink-dim:    #6B6151;   /* secondary text on light */
  --ochre:      #B8863B;
  --ochre-bright:#D6A75A;
  --rust:       #8C3E28;
  --patina:     #5C6852;

  --display: "Fraunces", "Iowan Old Style", Georgia, serif;
  --body: "Work Sans", -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: "Space Mono", "SFMono-Regular", Menlo, monospace;

  --max: 1240px;
  --edge: clamp(20px, 5vw, 64px);
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; }
}

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

img{ max-width:100%; display:block; }
a{ color:inherit; }

::selection{ background:var(--ochre); color:var(--void); }

:focus-visible{
  outline:2px solid var(--ochre-bright);
  outline-offset:3px;
}

.wrap{ max-width:var(--max); margin:0 auto; padding-left:var(--edge); padding-right:var(--edge); }

h1,h2,h3,h4{
  font-family:var(--display);
  font-weight:600;
  margin:0;
  letter-spacing:-0.01em;
}

.eyebrow{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:0.16em;
  text-transform:uppercase;
  color:var(--ochre);
  display:flex;
  align-items:center;
  gap:10px;
}
.eyebrow::before{
  content:"";
  width:22px; height:1px;
  background:var(--ochre);
  display:inline-block;
}

/* =========================================================
   NAV
   ========================================================= */
.site-nav{
  position:fixed;
  top:0; left:0; right:0;
  z-index:100;
  padding:22px var(--edge);
  display:flex;
  align-items:center;
  justify-content:space-between;
  transition:background-color .35s ease, padding .35s ease, border-color .35s ease;
  border-bottom:1px solid transparent;
}
.site-nav.on-dark{ color:var(--bone); }
.site-nav.on-light{ color:var(--ink); }
.site-nav.scrolled{
  background:var(--void);
  color:var(--bone);
  padding-top:14px;
  padding-bottom:14px;
  border-bottom:1px solid var(--void-line);
}

.wordmark{
  font-family:var(--display);
  font-weight:600;
  font-size:19px;
  letter-spacing:0.02em;
  text-decoration:none;
  display:flex;
  flex-direction:column;
  line-height:1.1;
}
.wordmark span{
  font-family:var(--mono);
  font-size:9.5px;
  letter-spacing:0.22em;
  text-transform:uppercase;
  opacity:0.65;
  margin-top:3px;
}

.nav-links{
  display:flex;
  gap:34px;
  list-style:none;
  margin:0; padding:0;
  font-size:14px;
  letter-spacing:0.02em;
}
.nav-links a{
  text-decoration:none;
  position:relative;
  padding-bottom:4px;
}
.nav-links a::after{
  content:"";
  position:absolute; left:0; right:100%; bottom:0;
  height:1px; background:currentColor;
  transition:right .3s ease;
}
.nav-links a:hover::after,
.nav-links a[aria-current="page"]::after{ right:0; }
.nav-links a[aria-current="page"]{ color:var(--ochre-bright); }

.nav-toggle{ display:none; }

/* =========================================================
   BUTTONS
   ========================================================= */
.btn{
  font-family:var(--mono);
  font-size:12.5px;
  letter-spacing:0.1em;
  text-transform:uppercase;
  text-decoration:none;
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:15px 24px;
  border:1px solid currentColor;
  background:transparent;
  cursor:pointer;
  transition:background-color .25s ease, color .25s ease;
}
.btn svg{ width:13px; height:13px; transition:transform .25s ease; }
.btn:hover svg{ transform:translateX(3px); }

.btn-primary{
  background:var(--ochre);
  border-color:var(--ochre);
  color:var(--void);
}
.btn-primary:hover{ background:var(--ochre-bright); border-color:var(--ochre-bright); }

.btn-ghost-dark{ color:var(--bone); border-color:rgba(238,230,214,0.4); }
.btn-ghost-dark:hover{ background:var(--bone); color:var(--void); }

.btn-ghost-light{ color:var(--ink); border-color:rgba(33,28,20,0.35); }
.btn-ghost-light:hover{ background:var(--ink); color:var(--paper); }

/* =========================================================
   HERO
   ========================================================= */
.hero{
  position:relative;
  min-height:100vh;
  display:flex;
  align-items:flex-end;
  color:var(--bone);
  background:var(--void);
  overflow:hidden;
}
.hero-media{
  position:absolute; inset:0;
  background-size:cover;
  background-position:center 30%;
  animation:hero-in 2.4s ease-out both;
}
@keyframes hero-in{ from{ transform:scale(1.08); opacity:0; } to{ transform:scale(1); opacity:1; } }
.hero-media::after{
  content:"";
  position:absolute; inset:0;
  background:
    linear-gradient(180deg, rgba(21,18,13,0.35) 0%, rgba(21,18,13,0.55) 55%, rgba(21,18,13,0.96) 100%),
    linear-gradient(90deg, rgba(21,18,13,0.75) 0%, rgba(21,18,13,0.1) 45%);
}
.hero-inner{
  position:relative;
  z-index:2;
  width:100%;
  padding:0 var(--edge) 76px;
  max-width:var(--max);
  margin:0 auto;
}
.hero .eyebrow{ color:var(--ochre-bright); margin-bottom:22px; }
.hero h1{
  font-size:clamp(48px, 8.2vw, 108px);
  line-height:0.98;
  max-width:16ch;
}
.hero h1 em{
  font-style:italic;
  font-weight:400;
  color:var(--ochre-bright);
}
.hero-sub{
  margin-top:26px;
  max-width:46ch;
  color:var(--bone-dim);
  font-size:17px;
}
.hero-actions{
  margin-top:38px;
  display:flex;
  gap:16px;
  flex-wrap:wrap;
}
.hero-scroll{
  position:absolute;
  right:var(--edge); bottom:40px;
  z-index:2;
  writing-mode:vertical-rl;
  color:var(--bone-dim);
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:0.2em;
  text-transform:uppercase;
  display:flex; align-items:center; gap:12px;
}
.hero-scroll::after{
  content:"";
  width:1px; height:46px;
  background:linear-gradient(var(--ochre), transparent);
}

/* =========================================================
   SECTIONS — general
   ========================================================= */
section{ padding:110px 0; }
.section-dark{ background:var(--void); color:var(--bone); }
.section-tight{ padding:80px 0; }

.section-head{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:40px;
  margin-bottom:56px;
  flex-wrap:wrap;
}
.section-head h2{ font-size:clamp(30px,4vw,48px); margin-top:16px; max-width:14ch; }
.section-head p{ max-width:38ch; color:var(--ink-dim); font-size:15.5px; }
.section-dark .section-head p{ color:var(--bone-dim); }

/* stat strip */
.stats{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--void-line);
  border-bottom:1px solid var(--void-line);
}
.stat{
  padding:34px var(--edge);
  border-left:1px solid var(--void-line);
}
.stat:first-child{ border-left:none; padding-left:var(--edge); }
.stat b{
  display:block;
  font-family:var(--display);
  font-size:clamp(28px,3vw,40px);
  color:var(--ochre-bright);
  font-weight:600;
}
.stat span{
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:0.08em;
  text-transform:uppercase;
  color:var(--bone-dim);
}

/* =========================================================
   COLLECTION GRID — specimen cards
   ========================================================= */
.grid-collection{
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  gap:1px;
  background:var(--paper-line);
  border:1px solid var(--paper-line);
}
.spec-card{
  position:relative;
  background:var(--paper);
  aspect-ratio:3/4;
  overflow:hidden;
  cursor:default;
}
.spec-card img{
  width:100%; height:100%;
  object-fit:cover;
  filter:grayscale(28%) contrast(1.02);
  transform:scale(1.02);
  transition:transform .7s cubic-bezier(.2,.8,.2,1), filter .5s ease;
}
.spec-card:hover img{ transform:scale(1.1); filter:grayscale(0%) contrast(1.05); }

.spec-tag{
  position:absolute; left:0; right:0; bottom:0;
  padding:16px 18px 18px;
  background:linear-gradient(180deg, transparent, rgba(21,18,13,0.92) 55%);
  color:var(--bone);
  transform:translateY(12px);
  opacity:0;
  transition:transform .4s ease, opacity .4s ease;
}
.spec-card:hover .spec-tag{ transform:translateY(0); opacity:1; }
.spec-lot{
  font-family:var(--mono);
  font-size:10.5px;
  letter-spacing:0.1em;
  color:var(--ochre-bright);
  text-transform:uppercase;
}
.spec-tag h4{
  font-family:var(--display);
  font-style:italic;
  font-weight:500;
  font-size:19px;
  margin:5px 0 3px;
}
.spec-meta{
  font-size:12px;
  color:var(--bone-dim);
  font-family:var(--mono);
}

.spec-card.wide{ grid-column:span 2; }
.spec-card.tall{ grid-row:span 2; aspect-ratio:auto; }

.collection-foot{
  margin-top:44px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:20px;
}
.collection-note{ font-size:13.5px; color:var(--ink-dim); font-family:var(--mono); max-width:46ch; }

/* =========================================================
   SPLIT (image + text) sections
   ========================================================= */
.split{
  display:grid;
  grid-template-columns:0.9fr 1.1fr;
  gap:clamp(30px,6vw,90px);
  align-items:center;
}
.split.reverse{ grid-template-columns:1.1fr 0.9fr; }
.split.reverse .split-media{ order:2; }
.split-media{ position:relative; }
.split-media img{ width:100%; aspect-ratio:4/5; object-fit:cover; }
.split-media .frame{
  position:absolute; inset:18px;
  border:1px solid var(--ochre);
  pointer-events:none;
}
.split-body .eyebrow{ margin-bottom:20px; }
.split-body h2{ font-size:clamp(28px,3.6vw,42px); margin-bottom:22px; }
.split-body p{ color:var(--ink-dim); margin:0 0 16px; max-width:52ch; }
.section-dark .split-body p{ color:var(--bone-dim); }
.split-body .btn{ margin-top:12px; }

/* pull quote */
.quote{
  font-family:var(--display);
  font-style:italic;
  font-weight:500;
  font-size:clamp(24px,2.6vw,32px);
  line-height:1.45;
  max-width:26ch;
  color:var(--bone);
}
.quote-attr{
  margin-top:22px;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:0.06em;
  text-transform:uppercase;
  color:var(--ochre-bright);
}

/* =========================================================
   TIMELINE (about page — genuine chronology)
   ========================================================= */
.timeline{ border-top:1px solid var(--paper-line); }
.tl-row{
  display:grid;
  grid-template-columns:140px 1fr;
  gap:40px;
  padding:32px 0;
  border-bottom:1px solid var(--paper-line);
}
.tl-row .yr{
  font-family:var(--mono);
  font-size:14px;
  color:var(--rust);
  letter-spacing:0.04em;
}
.tl-row h4{ font-size:20px; margin-bottom:8px; font-weight:600; }
.tl-row p{ color:var(--ink-dim); margin:0; max-width:60ch; font-size:15px; }

/* values grid */
.values{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1px;
  background:var(--void-line);
  border:1px solid var(--void-line);
}
.value-card{ background:var(--void); padding:40px 34px; }
.value-card .eyebrow{ margin-bottom:18px; }
.value-card h4{ font-size:21px; margin-bottom:12px; color:var(--bone); }
.value-card p{ color:var(--bone-dim); font-size:14.5px; margin:0; }

/* team */
.team-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:36px;
}
.team-card{ text-align:left; }
.team-mono{
  width:100%; aspect-ratio:1;
  display:flex; align-items:center; justify-content:center;
  background:var(--void);
  color:var(--ochre-bright);
  font-family:var(--display);
  font-style:italic;
  font-size:38px;
  margin-bottom:18px;
  border:1px solid var(--paper-line);
}
.team-card h4{ font-size:17px; margin-bottom:4px; }
.team-card span{ font-family:var(--mono); font-size:11.5px; color:var(--ink-dim); text-transform:uppercase; letter-spacing:0.06em; }

/* =========================================================
   CTA banner
   ========================================================= */
.cta-band{
  background:var(--rust);
  color:var(--bone);
  padding:80px 0;
}
.cta-inner{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:30px;
  flex-wrap:wrap;
}
.cta-inner h2{ font-size:clamp(28px,3.6vw,44px); max-width:16ch; }
.cta-band .btn-primary{ background:var(--bone); border-color:var(--bone); color:var(--rust); }
.cta-band .btn-primary:hover{ background:var(--void); border-color:var(--void); color:var(--bone); }

/* =========================================================
   PAGE HEADER (about / contact)
   ========================================================= */
.page-head{
  background:var(--void);
  color:var(--bone);
  padding:180px 0 90px;
  position:relative;
  overflow:hidden;
}
.page-head-media{
  position:absolute; inset:0;
  background-size:cover; background-position:center;
  opacity:0.28;
}
.page-head-media::after{
  content:"";
  position:absolute; inset:0;
  background:linear-gradient(180deg, rgba(21,18,13,0.6), var(--void) 92%);
}
.page-head-inner{ position:relative; z-index:2; }
.page-head h1{ font-size:clamp(38px,6vw,72px); margin-top:18px; max-width:18ch; }
.page-head p{ margin-top:20px; max-width:52ch; color:var(--bone-dim); font-size:16px; }

/* =========================================================
   CONTACT PAGE
   ========================================================= */
.contact-layout{
  display:grid;
  grid-template-columns:1.15fr 0.85fr;
  gap:clamp(30px,6vw,80px);
}
.form-field{ margin-bottom:24px; }
.form-field label{
  display:block;
  font-family:var(--mono);
  font-size:11.5px;
  letter-spacing:0.1em;
  text-transform:uppercase;
  color:var(--ink-dim);
  margin-bottom:10px;
}
.form-field input,
.form-field select,
.form-field textarea{
  width:100%;
  background:transparent;
  border:none;
  border-bottom:1px solid var(--paper-line);
  padding:12px 2px;
  font-family:var(--body);
  font-size:15.5px;
  color:var(--ink);
  transition:border-color .25s ease;
}
.form-field textarea{ resize:vertical; min-height:120px; }
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus{
  outline:none;
  border-bottom-color:var(--ochre);
}
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:24px; }
.field-error{
  display:block;
  font-family:var(--mono);
  font-size:11px;
  color:var(--rust);
  margin-top:8px;
  min-height:14px;
}
.form-note{
  font-family:var(--mono);
  font-size:12px;
  color:var(--ink-dim);
  margin-top:6px;
  line-height:1.7;
}
.form-status{
  margin-top:22px;
  padding:16px 18px;
  border:1px solid var(--paper-line);
  font-size:14px;
  display:none;
}
.form-status.show{ display:block; }
.form-status.ok{ border-color:var(--patina); color:#3d4436; background:rgba(92,104,82,0.08); }
.form-status.err{ border-color:var(--rust); color:var(--rust); background:rgba(140,62,40,0.06); }

.info-panel{ background:var(--void); color:var(--bone); padding:44px 38px; }
.info-block{ padding:20px 0; border-bottom:1px solid var(--void-line); }
.info-block:last-child{ border-bottom:none; }
.info-block .eyebrow{ margin-bottom:12px; }
.info-block p, .info-block a{ margin:0; color:var(--bone-dim); font-size:14.5px; text-decoration:none; line-height:1.8; }
.info-block a:hover{ color:var(--ochre-bright); }

.map-wrap{ margin-top:60px; border:1px solid var(--paper-line); filter:grayscale(55%) contrast(1.05); }
.map-wrap iframe{ width:100%; height:340px; border:0; display:block; }

/* =========================================================
   FOOTER
   ========================================================= */
footer{
  background:var(--void);
  color:var(--bone-dim);
  padding:70px 0 30px;
  border-top:1px solid var(--void-line);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:50px;
}
.footer-grid h5{
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:0.12em;
  text-transform:uppercase;
  color:var(--bone);
  margin-bottom:18px;
}
.footer-grid ul{ list-style:none; margin:0; padding:0; }
.footer-grid li{ margin-bottom:11px; font-size:14px; }
.footer-grid a{ text-decoration:none; }
.footer-grid a:hover{ color:var(--ochre-bright); }
.footer-word{ font-family:var(--display); font-size:24px; color:var(--bone); margin-bottom:14px; }
.footer-tag{ font-size:13.5px; max-width:32ch; line-height:1.7; }
.footer-bottom{
  display:flex; justify-content:space-between; align-items:center;
  flex-wrap:wrap; gap:12px;
  padding-top:26px; border-top:1px solid var(--void-line);
  font-family:var(--mono); font-size:11px; letter-spacing:0.04em; color:var(--bone-dim);
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 980px){
  .nav-links{
    position:fixed; inset:0 0 0 auto; width:min(320px,80vw);
    background:var(--void); color:var(--bone);
    flex-direction:column; padding:100px 32px 32px;
    transform:translateX(100%); transition:transform .35s ease;
    gap:26px; font-size:16px;
  }
  .nav-links.open{ transform:translateX(0); }
  .nav-toggle{
    display:flex; flex-direction:column; gap:5px;
    background:none; border:none; cursor:pointer; z-index:110; padding:6px;
  }
  .nav-toggle span{ width:22px; height:1px; background:currentColor; }

  .stats{ grid-template-columns:repeat(2,1fr); }
  .stat:nth-child(3){ border-left:none; padding-left:var(--edge); }
  .stat:nth-child(odd){ border-left:none; padding-left:var(--edge); }

  .grid-collection{ grid-template-columns:repeat(2,1fr); }
  .spec-card.wide{ grid-column:span 2; }
  .spec-card.tall{ grid-row:span 1; aspect-ratio:3/4; }
  .spec-tag{ opacity:1; transform:none; }

  .split, .split.reverse{ grid-template-columns:1fr; }
  .split.reverse .split-media{ order:0; }

  .values{ grid-template-columns:1fr; }
  .team-grid{ grid-template-columns:repeat(2,1fr); }

  .contact-layout{ grid-template-columns:1fr; }
  .form-row{ grid-template-columns:1fr; }

  .footer-grid{ grid-template-columns:1fr 1fr; }
}

@media (max-width: 560px){
  section{ padding:70px 0; }
  .stats{ grid-template-columns:1fr; }
  .stat{ border-left:none !important; }
  .grid-collection{ grid-template-columns:1fr; }
  .spec-card.wide{ grid-column:span 1; }
  .team-grid{ grid-template-columns:1fr 1fr; }
  .footer-grid{ grid-template-columns:1fr; }
  .cta-inner{ flex-direction:column; align-items:flex-start; }
}