/* ---------------------------------------------------------------
   AYOTOCHTLI — Enes Köse
   --------------------------------------------------------------- */

:root{
  --ink:#0d0b09;
  --stone:#17130f;
  --stone-2:#1f1a15;
  --bone:#e6ddcb;
  --bone-dim:#a89c86;
  --oxide:#c2593a;
  --oxide-dim:#8a3f2a;
  --jade:#2f7d73;
  --jade-dim:#1d5952;
  --line:#2e2620;
  --serif:'EB Garamond',Georgia,'Times New Roman',serif;
  --carve:'Cinzel',Georgia,serif;
  --mono:ui-monospace,'SF Mono',Menlo,Consolas,monospace;
}

*{box-sizing:border-box}

html{-webkit-text-size-adjust:100%;overflow-x:hidden}

body{
  margin:0;
  background:var(--ink);
  color:var(--bone);
  font-family:var(--serif);
  font-size:19px;
  line-height:1.72;
  letter-spacing:.005em;
}

/* grain */
body::before{
  content:'';
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:9999;
  opacity:.16;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/></filter><rect width='200' height='200' filter='url(%23n)' opacity='.5'/></svg>");
}

img{max-width:100%;display:block}
a{color:var(--oxide);text-decoration:none;border-bottom:1px solid var(--oxide-dim)}
a:hover{color:var(--bone)}

/* ---------------- masthead ---------------- */

.masthead{
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,var(--stone) 0%,var(--ink) 100%);
}
.masthead-inner{
  max-width:860px;margin:0 auto;padding:44px 24px 0;
}
.sitetitle{
  font-family:var(--carve);
  font-size:clamp(34px,7vw,58px);
  letter-spacing:.14em;
  margin:0;
  color:var(--bone);
  font-weight:600;
}
.qm{color:var(--oxide);margin-left:.04em}
.sitesub{
  margin:14px 0 4px;
  color:var(--bone-dim);
  font-style:italic;
  font-size:17px;
  max-width:46em;
}
.byline{
  margin:0 0 30px;
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--oxide);
}

/* ---------------- tabs ---------------- */

.tabs{display:flex;gap:2px;flex-wrap:wrap}
.tab{
  appearance:none;
  background:transparent;
  border:1px solid var(--line);
  border-bottom:none;
  color:var(--bone-dim);
  font-family:var(--carve);
  font-size:12px;
  letter-spacing:.2em;
  text-transform:uppercase;
  padding:13px 22px;
  cursor:pointer;
  transition:color .18s,background .18s;
}
.tab:hover{color:var(--bone);background:var(--stone-2)}
.tab[aria-selected="true"]{
  background:var(--ink);
  color:var(--bone);
  border-color:var(--line);
  box-shadow:inset 0 2px 0 var(--oxide);
}

/* ---------------- layout ---------------- */

main{max-width:860px;margin:0 auto;padding:0 24px 120px}
.panel{display:none;padding-top:56px}
.panel.is-active{display:block;animation:fade .4s ease}
@keyframes fade{from{opacity:0}to{opacity:1}}

.readable{max-width:640px;margin-left:auto;margin-right:auto}

h2.part{
  font-family:var(--carve);
  font-size:13px;
  letter-spacing:.3em;
  text-transform:uppercase;
  color:var(--oxide);
  margin:76px 0 6px;
  font-weight:600;
}
h2.part:first-of-type{margin-top:0}
.part-name{
  font-family:var(--serif);
  font-size:28px;
  font-style:italic;
  color:var(--bone);
  margin:0 0 4px;
}
.part-place{
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--bone-dim);
  margin:0 0 30px;
}

p{margin:0 0 1.35em}
.lead::first-letter{
  font-family:var(--carve);
  float:left;
  font-size:64px;
  line-height:.82;
  padding:6px 10px 0 0;
  color:var(--oxide);
}

/* museum-label interstitials */
.ledger{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:28px 0 26px;
  margin:46px auto;
  max-width:640px;
}
.ledger .cat{
  display:block;
  font-family:var(--mono);
  font-size:10px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--oxide);
  margin-bottom:6px;
}
.ledger .cat-sub{
  font-style:italic;
  color:var(--bone-dim);
  font-size:16px;
  margin:0 0 18px;
}
.inventory{margin:0;padding:0;list-style:none}
.inventory li{margin:0 0 15px;padding:0;font-size:17px;color:#cdc3ae}
.inventory li:last-child{margin-bottom:0}
.inventory strong{color:var(--bone);font-weight:500}

hr.rule{
  border:none;
  height:1px;
  background:linear-gradient(90deg,var(--line),transparent);
  margin:56px 0;
}

/* ---------------- glossary hovers ---------------- */

.g{
  cursor:help;
  position:relative;
  color:var(--oxide);
  border-bottom:1px dashed var(--oxide);
  padding:1px 3px 0;
  margin:0 -1px;
  background:rgba(194,89,58,.10);
  border-radius:2px;
  transition:background .15s,color .15s;
}
.g::before{
  content:'';
  display:inline-block;
  width:4px;height:4px;
  margin-right:4px;
  vertical-align:.32em;
  border-radius:50%;
  background:var(--oxide);
  opacity:.65;
}
.g:hover,.g.open{
  background:var(--oxide);
  color:var(--ink);
  border-bottom-color:var(--oxide);
}
.g:hover::before,.g.open::before{background:var(--ink);opacity:.5}

/* quieter variant for headings, captions and place-lines */
.g.plain{background:none;padding:0;margin:0;border-bottom:1px dashed var(--oxide-dim);color:inherit}
.g.plain::before{display:none}
.g.plain:hover,.g.plain.open{background:none;color:var(--oxide);border-bottom-color:var(--oxide)}
.g::after{
  content:attr(data-d);
  position:absolute;
  left:50%;
  bottom:calc(100% + 10px);
  transform:translateX(-50%);
  width:max-content;
  max-width:280px;
  background:var(--stone-2);
  color:var(--bone);
  border:1px solid var(--line);
  border-top:2px solid var(--oxide);
  padding:10px 13px;
  font-family:var(--serif);
  font-style:normal;
  font-size:15px;
  line-height:1.5;
  letter-spacing:0;
  box-shadow:0 10px 30px rgba(0,0,0,.6);
  display:none;
  z-index:60;
  pointer-events:none;
}
.g:hover::after,.g.open::after{display:block}

/* ---------------- figures ---------------- */

figure{margin:52px 0}
figure img{
  width:100%;
  border:1px solid var(--line);
  filter:saturate(.88) contrast(1.04);
}
figcaption{
  margin-top:12px;
  font-family:var(--mono);
  font-size:11px;
  line-height:1.7;
  letter-spacing:.06em;
  color:var(--bone-dim);
  text-transform:uppercase;
}

/* ---------------- argument ---------------- */

.arg h3{
  font-family:var(--carve);
  font-size:15px;
  letter-spacing:.09em;
  color:var(--oxide);
  font-weight:600;
  margin:52px 0 14px;
  padding-bottom:9px;
  border-bottom:1px solid var(--line);
}
.arg h3:first-child{margin-top:0}
.arg p{font-size:18px;line-height:1.76}
.arg strong{color:var(--bone);font-weight:500}

/* ---------------- chat ---------------- */

.chat-note{
  border:1px solid var(--line);
  background:var(--stone);
  padding:22px 24px;
  margin-bottom:48px;
  font-size:16.5px;
  color:var(--bone-dim);
}
.chat-note strong{color:var(--bone)}

.thread{display:flex;flex-direction:column;gap:22px}

.msg{
  max-width:71%;
  padding:18px 22px;
  border:1px solid var(--line);
  border-radius:14px;
  position:relative;
}
.msg-who{
  font-family:var(--mono);
  font-size:10px;
  letter-spacing:.22em;
  text-transform:uppercase;
  margin-bottom:11px;
}
.msg-body{font-size:17px;line-height:1.68}
.msg-body p{margin:0 0 .95em}
.msg-body p:last-child{margin-bottom:0}
.msg-body ul,.msg-body ol{margin:0 0 .95em;padding-left:1.3em}
.msg-body li{margin-bottom:.4em}
.msg-body h4{
  font-family:var(--carve);
  font-size:12px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--oxide);
  margin:1.6em 0 .6em;
}
.msg-body blockquote{
  margin:1em 0;
  padding:2px 0 2px 18px;
  border-left:2px solid var(--oxide-dim);
  color:var(--bone-dim);
  font-style:italic;
}
.msg-body code{
  font-family:var(--mono);
  font-size:.85em;
  background:var(--stone-2);
  padding:2px 5px;
  color:var(--oxide);
}
.msg-body em{color:var(--bone)}

.msg.user{
  align-self:flex-end;
  background:#3b2318;
  border-color:#643924;
  border-bottom-right-radius:3px;
}
.msg.user .msg-who{color:var(--oxide);text-align:right}
.msg.user .msg-body{color:var(--bone)}

.msg.ai{
  align-self:flex-start;
  background:#16130f;
  border-color:#2b241e;
  border-bottom-left-radius:3px;
}
.msg.ai .msg-who{color:var(--bone-dim)}
.msg.ai .msg-body{color:#cdc3ae}

.tool{
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.06em;
  color:var(--bone-dim);
  background:var(--ink);
  border:1px dashed var(--line);
  border-radius:6px;
  padding:9px 13px;
  margin:14px 0;
}
.tool::before{content:'› ';color:var(--oxide)}

/* ---------------- materials ---------------- */

.grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(250px,1fr));
  gap:28px;
  margin:0 0 60px;
}
.card{
  border:1px solid var(--line);
  background:var(--stone);
  display:flex;
  flex-direction:column;
}
.card img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  cursor:zoom-in;
  filter:saturate(.88);
  transition:filter .2s;
}
.card img:hover{filter:saturate(1.05) brightness(1.08)}
.card-body{padding:16px 18px 18px;flex:1;display:flex;flex-direction:column}
.card h3{
  font-family:var(--carve);
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  margin:0 0 8px;
  color:var(--bone);
  font-weight:600;
}
.card p{font-size:15px;color:var(--bone-dim);margin:0 0 14px;line-height:1.6;flex:1}
.dl{
  font-family:var(--mono);
  font-size:10px;
  letter-spacing:.16em;
  text-transform:uppercase;
  border:1px solid var(--oxide-dim);
  color:var(--oxide);
  padding:8px 12px;
  text-align:center;
  align-self:flex-start;
}
.dl:hover{background:var(--oxide);color:var(--ink);border-color:var(--oxide)}

h2.section{
  font-family:var(--carve);
  font-size:12px;
  letter-spacing:.3em;
  text-transform:uppercase;
  color:var(--oxide);
  margin:0 0 8px;
  font-weight:600;
}
.section-note{color:var(--bone-dim);margin:0 0 34px;max-width:44em;font-size:16.5px}

/* back to top */

.totop{
  position:fixed;
  right:24px;
  bottom:24px;
  z-index:150;
  display:flex;
  align-items:center;
  gap:8px;
  padding:11px 16px;
  background:var(--stone-2);
  color:var(--bone);
  border:1px solid var(--oxide-dim);
  border-radius:999px;
  cursor:pointer;
  font-family:var(--mono);
  font-size:10px;
  letter-spacing:.18em;
  text-transform:uppercase;
  box-shadow:0 8px 28px rgba(0,0,0,.55);
  opacity:0;
  visibility:hidden;
  pointer-events:none;
  transform:translateY(8px);
  transition:opacity .22s,transform .22s,background .16s,color .16s,visibility 0s linear .22s;
}
.totop.show{
  opacity:1;
  visibility:visible;
  pointer-events:auto;
  transform:none;
  transition:opacity .22s,transform .22s,background .16s,color .16s,visibility 0s;
}
.totop:hover{background:var(--oxide);color:var(--ink);border-color:var(--oxide)}
.totop-arrow{font-size:13px;line-height:1}

@media(max-width:640px){
  .totop{right:14px;bottom:14px;padding:10px 13px}
  .totop-label{display:none}
}

@media(prefers-reduced-motion:reduce){
  .totop{transition:opacity .22s}
  .totop.show{transform:none}
}

/* lightbox */
.lightbox{
  position:fixed;
  inset:0;
  background:rgba(6,5,4,.96);
  display:none;
  align-items:center;
  justify-content:center;
  padding:30px;
  z-index:200;
  cursor:zoom-out;
}
.lightbox.open{display:flex}
.lightbox img{max-width:100%;max-height:92vh;object-fit:contain;border:1px solid var(--line)}

/* ---------------- footer ---------------- */

footer{
  border-top:1px solid var(--line);
  margin-top:90px;
  padding:34px 24px 60px;
  text-align:center;
}
.foot-line{
  font-family:var(--mono);
  font-size:10.5px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--bone-dim);
  margin:0 0 8px;
}
.foot-word{
  font-family:var(--carve);
  font-size:15px;
  letter-spacing:.3em;
  color:var(--oxide);
  margin:0;
}

@media(max-width:640px){
  body{font-size:18px}
  .masthead-inner{padding-top:32px}
  .tab{padding:11px 15px;font-size:11px;letter-spacing:.14em}
  .panel{padding-top:40px}
  figure{margin:38px 0}
  .g::after{max-width:220px;font-size:14px}
  .msg{max-width:90%;padding:15px 17px}
}