/* Restraint is the brief. One accent, plain type, hairline rules, a lot of air.
   The directory is always visible on the left; content sits in a card on the right.

   LIGHT AND DARK ARE SITE-WIDE, not a gallery setting. The switch sets data-theme on <html>; every colour below
   comes from a variable, so nothing else has to know which mode it is in. The eyes listen for the same switch. */

:root, :root[data-theme="light"]{
  --ink:#16161a;
  --ink-2:#55555f;
  --ink-3:#8a8a94;
  --line:#e6e6ea;
  --bg:#fff;
  --card:#fff;
  --tile:#fff;
  --code:#f5f5f7;
  --accent:#1a4fd6;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,monospace;
  --side:300px;
}

:root[data-theme="dark"]{
  --ink:#eceaf2;
  --ink-2:#a9a6b6;
  --ink-3:#76727f;
  --line:#26242e;
  --bg:#0b0913;
  --card:#100e19;
  --tile:#0b0913;
  --code:#171522;
  --accent:#8fa9ff;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font:16px/1.6 var(--sans);
}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}

.skip{position:absolute;left:-9999px}
.skip:focus{left:8px;top:8px;background:var(--card);padding:8px;z-index:10}

.page{display:grid;grid-template-columns:var(--side) 1fr;gap:0;min-height:100vh;max-width:1500px}

/* ---------- the directory, always visible ---------- */
.side{padding:54px 34px 60px;border-right:1px solid var(--line);position:sticky;top:0;align-self:start;max-height:100vh;overflow-y:auto}
.brand{display:block;font-size:30px;font-weight:600;letter-spacing:-.01em;color:var(--accent)}
.brand:hover{text-decoration:none}
.def{margin:6px 0 0;color:var(--ink-3);font-size:14.5px;line-height:1.45;white-space:pre-line}
.side nav{margin-top:44px}
.side ul{list-style:none;margin:0;padding:0}
.side nav > ul > li{border-top:1px solid var(--line)}
.side nav > ul > li:last-child{border-bottom:1px solid var(--line)}
.side nav a,.side nav summary{
  display:block;padding:11px 0;color:var(--ink);font-size:16px;cursor:pointer;
}
.side nav a:hover,.side nav summary:hover{color:var(--accent);text-decoration:none}
.side nav a.on{color:var(--accent)}
.side nav summary{list-style:none;display:flex;align-items:center;justify-content:space-between}
.side nav summary::-webkit-details-marker{display:none}
.side nav summary::after{content:"⌄";color:var(--ink-3);font-size:14px;line-height:1;transform:translateY(-2px)}
.side nav details[open] summary::after{content:"⌃";transform:translateY(2px)}
.side nav ul.sub{padding:0 0 8px 0}
.side nav ul.sub a{padding:7px 0 7px 14px;font-size:15px;color:var(--ink-2)}

/* ---------- content ---------- */
main{padding:54px 46px 120px;min-width:0}
.card{max-width:760px;border:1px solid var(--line);border-radius:14px;padding:34px 38px 40px;background:var(--card)}
.card > :first-child{margin-top:0}
h1{font-size:29px;font-weight:600;letter-spacing:-.015em;margin:0 0 18px}
h2{font-size:21px;font-weight:600;margin:34px 0 10px}
h3{font-size:17px;font-weight:600;margin:26px 0 8px}
p{margin:0 0 16px}
hr{border:0;border-top:1px solid var(--line);margin:30px 0}
blockquote{margin:0 0 16px;padding-left:16px;border-left:2px solid var(--line);color:var(--ink-2)}
code{font:13.5px var(--mono);background:var(--code);padding:1px 5px;border-radius:4px}
pre{background:var(--code);padding:14px 16px;border-radius:10px;overflow-x:auto}
pre code{background:none;padding:0}
img{max-width:100%;height:auto;border-radius:8px}
.meta{color:var(--ink-3);font-size:14px}

/* post lists on topic pages */
ul.posts{list-style:none;margin:26px 0 0;padding:0}
ul.posts li{border-top:1px solid var(--line);padding:14px 0}
ul.posts a{font-size:17px}
ul.posts time{display:block;color:var(--ink-3);font-size:13px;font-family:var(--mono);margin-top:2px}
ul.posts .sum{display:block;color:var(--ink-2);font-size:14.5px;margin-top:4px}

/* the light/dark switch, under the menu */
.themebar{margin-top:26px;display:flex;gap:6px}
.themebar button{
  font:11px var(--mono);letter-spacing:.08em;text-transform:uppercase;
  border:1px solid var(--line);background:transparent;color:var(--ink-3);
  border-radius:999px;padding:6px 12px;cursor:pointer
}
.themebar button:hover{color:var(--ink-2)}
.themebar button.on{border-color:var(--ink-2);color:var(--ink)}

/* ---------- the eyes ---------- */
.gallery{margin:26px 0 0}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:22px}
.eye{display:block;color:inherit}
.eye:hover{text-decoration:none}
.eye .tile{
  aspect-ratio:1/1;border-radius:12px;overflow:hidden;display:block;width:100%;
  background:var(--tile);border:1px solid var(--line);
}
.eye canvas{display:block;width:100%;height:100%}
.eye .cap{margin-top:9px}
.eye .txt{
  font-size:13.5px;line-height:1.4;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.eye .num{font:11px var(--mono);color:var(--ink-3);margin-top:4px;letter-spacing:.02em}
.eye:hover .txt{color:var(--accent)}

/* ---------- small screens: the directory moves on top ---------- */
@media(max-width:860px){
  .page{grid-template-columns:1fr}
  .side{position:static;max-height:none;border-right:0;border-bottom:1px solid var(--line);padding:34px 22px 26px}
  main{padding:26px 22px 90px}
  .card{padding:24px 22px 30px;border:0;border-radius:0}
  .grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:16px}
}
