/* Hacker News Books — the page is HN's own beige; HN data is set in Verdana (HN's face); books and quotes in Literata. */
:root{
  --paper:#f6f6ef;      /* news.ycombinator.com background */
  --ink:#000;
  --grey:#828282;       /* HN's meta grey */
  --rule:#e1dfd3;
  --orange:#ff6600;     /* the one accent: rank + buy */
  --card:#fffdf6;
  --card-rule:#c9d8ea;  /* index-card blue */
  --card-margin:#e7989a;/* index-card red */
  --serif:"Literata",Georgia,"Times New Roman",serif;
  --hn:Verdana,Geneva,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--serif);font-size:17px;line-height:1.55;font-optical-sizing:auto}
a{color:inherit}
img{max-width:100%}
main{max-width:980px;margin:0 auto;padding:0 16px 48px}
h1,h2,h3{font-weight:500;line-height:1.15;margin:0}
h1{font-size:clamp(30px,5vw,46px);letter-spacing:-.01em}
h2{font-size:clamp(22px,3vw,28px);margin:40px 0 14px}
h3{font-size:19px}

/* header: the HN bar, honestly quoted */
.top{background:var(--orange);padding:6px 16px;display:flex;align-items:center;gap:18px;flex-wrap:wrap;font-family:var(--hn);font-size:13px}
.top .mark{text-decoration:none;color:#000;font-weight:700;display:flex;align-items:center;gap:7px}
.top .y{display:inline-grid;place-items:center;width:20px;height:20px;border:1px solid #fff;color:#fff;font-weight:700;font-size:13px;line-height:1}
.top nav{display:flex;gap:14px}
.top nav a{color:#000;text-decoration:none}
.top nav a:hover{text-decoration:underline}

.hero{padding:44px 0 8px;max-width:760px}
.hero p{font-size:19px;color:#333;margin:16px 0 0}
.hero.small{padding:32px 0 0}
.hero.small p{font-size:17px}
.hero.thread .tm{font-family:var(--hn);font-size:13px;color:var(--grey);margin:0 0 6px}
.hero.thread .tm a{color:var(--grey)}
.lede{color:#333;margin:8px 0 0}
.more{font-size:14px;font-weight:400;color:var(--grey);margin-left:12px}
.more-p{margin:24px 0 0;font-size:17px}
.empty{color:var(--grey);font-style:italic}

/* hot shelf */
.shelf ul{list-style:none;margin:0;padding:8px 0 4px;display:flex;gap:18px;overflow-x:auto;scroll-snap-type:x proximity;scrollbar-width:thin}
.shelf li{flex:0 0 112px;scroll-snap-align:start}
.shelf a{text-decoration:none;display:block}
.shelf .cov{width:112px;height:168px}
.sh-t{display:block;font-size:14px;line-height:1.25;margin-top:8px;color:var(--ink)}
.sh-n{display:block;font-family:var(--hn);font-size:11px;color:var(--grey);margin-top:3px}

/* covers */
.cov{display:block;width:60px;height:90px;object-fit:cover;background:#ddd9c8;flex:none}
.cov.lg{width:100%;max-width:220px;height:auto;aspect-ratio:2/3}
.cov.gen{display:grid;place-items:center;padding:6px;text-align:center;font-family:var(--serif);font-size:9px;line-height:1.2;color:#fffdf6;background:hsl(var(--h) 28% 34%);border-left:4px solid hsl(var(--h) 28% 24%)}
.cov.gen.lg{font-size:18px;padding:16px;aspect-ratio:2/3}
.shelf .cov.gen{font-size:12px}

/* ranked rows */
.list ol,.list ul{list-style:none;margin:0;padding:0}
.row{display:grid;grid-template-columns:44px 60px 1fr auto;gap:14px;align-items:start;padding:16px 0;border-top:1px solid var(--rule)}
.row:first-child{border-top:0}
.rk{font-family:var(--hn);font-size:15px;color:var(--orange);padding-top:4px;text-align:right}
.hotlist .rk,.thread ~ .list .rk{font-weight:700}
.rb h3 a{text-decoration:none}
.rb h3 a:hover{text-decoration:underline}
.au{margin:2px 0 0;color:#333;font-size:15px}
.st{margin:4px 0 0;font-family:var(--hn);font-size:12px;color:var(--grey)}
.st.big{font-family:var(--serif);font-size:18px;color:#333;margin-top:14px}
.snip{margin:8px 0 0;font-size:15px;color:#333;max-width:60ch}
.snip .who{font-family:var(--hn);font-size:11px;color:var(--grey);white-space:nowrap}
.tm{font-family:var(--hn);font-size:12px;color:var(--grey)}

/* buy */
.buy{display:flex;flex-direction:column;align-items:flex-end;gap:6px;padding-top:2px}
.btn{display:inline-block;background:var(--orange);color:#000;text-decoration:none;font-family:var(--hn);font-size:13px;font-weight:700;padding:9px 14px;border:1px solid #d65600}
.btn:hover{background:#ff7a1f}
.btn:focus-visible{outline:3px solid #000;outline-offset:2px}
.rating{font-family:var(--hn);font-size:11px;color:var(--grey);text-align:right}
.buy.big{align-items:stretch;margin-top:16px}
.buy.big .btn{text-align:center;font-size:15px;padding:12px 16px}
.buy.big .rating{text-align:left;font-size:12px}

/* book page */
.book{display:grid;grid-template-columns:220px 1fr;gap:40px;padding-top:40px}
.book .side{position:sticky;top:16px;align-self:start}
.rank{font-family:var(--hn);font-size:12px;color:var(--grey);margin:12px 0 0}
.book .au{font-size:19px;margin-top:8px}
.hotline,.neg{font-family:var(--hn);font-size:13px;color:var(--grey);margin:6px 0 0}
.thr{list-style:none;margin:0;padding:0}
.thr li{padding:8px 0;border-top:1px solid var(--rule);font-family:var(--hn);font-size:13px;line-height:1.45}
.thr li:first-child{border-top:0}
.thr .tm{display:block}
.thr.all li{font-size:14px}

.notes{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.note{background:#fff7c2;border:1px solid #ead98a;padding:18px 18px 14px;font-size:15px;line-height:1.5}
.note p{margin:0}
.note .nt{font-weight:700;margin-bottom:6px}
.note .nb{font-family:var(--hn);font-size:11px;color:#6b6340;margin-top:10px}

/* the memorable thing: index cards with the commenter on the tab */
.wall{display:grid;grid-template-columns:1fr;gap:26px;margin-top:4px}
.card{margin:0;position:relative;background:var(--card);border:1px solid #d9d4c1;padding:24px 26px 18px 44px;
  background-image:linear-gradient(90deg,transparent 30px,var(--card-margin) 30px,var(--card-margin) 31px,transparent 31px),
                   repeating-linear-gradient(180deg,transparent 0 27px,var(--card-rule) 27px 28px);
  background-position:0 0,0 22px;
  box-shadow:0 1px 0 #d9d4c1,0 2px 0 var(--card),0 3px 0 #d9d4c1;
  opacity:0;transform:translateY(22px) rotate(calc(var(--i) * .35deg - .8deg));transition:opacity .55s ease,transform .6s cubic-bezier(.2,.7,.2,1);
  transition-delay:calc(var(--i) * 60ms)}
.card.in{opacity:1;transform:none}
.card blockquote{margin:0;font-size:17.5px;line-height:28px;color:#1c1c1c}
.card figcaption{position:absolute;top:-13px;left:22px}
.card .tab{display:inline-block;font-family:var(--hn);font-size:11px;background:#fff;border:1px solid #d9d4c1;border-bottom-color:var(--card);padding:4px 10px;color:#000}
.card .cs{margin:10px 0 0;font-family:var(--hn);font-size:11px;text-align:right}
.card .cs a{color:var(--grey)}
@media (prefers-reduced-motion:reduce){.card{opacity:1;transform:none;transition:none}}

.prose{max-width:66ch}
.prose p{margin:14px 0}
.prose h2{margin-top:32px;font-size:22px}

footer{max-width:980px;margin:56px auto 0;padding:24px 16px 40px;border-top:1px solid var(--rule);font-family:var(--hn);font-size:12px;color:var(--grey);line-height:1.6}
footer a{color:var(--grey)}

@media (max-width:720px){
  .book{grid-template-columns:1fr;gap:24px;padding-top:24px}
  .book .side{position:static;display:grid;grid-template-columns:120px 1fr;gap:16px;align-items:end}
  .book .side .cov.lg{max-width:120px}
  .row{grid-template-columns:30px 48px 1fr;gap:10px}
  .cov{width:48px;height:72px}
  .buy{grid-column:3;align-items:flex-start}
  .rating{text-align:left}
  .card{padding:22px 16px 14px 40px}
  .card blockquote{font-size:16.5px;line-height:28px}
  .hero{padding-top:28px}
}