:root {
  --paper: #F5F3EE;
  --paper-2: #EBE8E0;
  --ink: #1E1F26;
  --ink-2: #5E606B;
  --rule: #D5D2C9;
  --accent: #8B2F35;
  --accent-ink: #FFFFFF;
  --dark: #15161B;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #17181D; --paper-2: #21232A; --ink: #ECE9E1; --ink-2: #A5A7B2;
    --rule: #33353F; --accent: #D07A80; --accent-ink: #17181D; --dark: #0E0F12;
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font-family: "Source Serif 4", Georgia, "Times New Roman", serif;
  font-size: 17px; line-height: 1.6;
}
.wrap { max-width: 1060px; margin: 0 auto; padding-inline: 24px; }
a { color: inherit; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
img { max-width: 100%; height: auto; display: block; }
.label { font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace; font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-2); }

/* header */
header { border-bottom: 1px solid var(--rule); position: sticky; top: 0; background: var(--paper); z-index: 5; }
header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding-block: 18px; }
.wordmark { font-family: "Cormorant", Georgia, serif; font-size: 27px; font-weight: 600; text-decoration: none; letter-spacing: .01em; }
nav { display: flex; gap: 26px; align-items: center; flex-wrap: wrap; }
nav a { text-decoration: none; font-size: 15px; color: var(--ink-2); }
nav a:hover { color: var(--ink); }
.lang { font-family: "IBM Plex Mono", monospace; font-size: 12px; letter-spacing: .08em; border: 1px solid var(--rule); border-radius: 3px; padding: 5px 10px; color: var(--ink) !important; }
.lang:hover { border-color: var(--accent); color: var(--accent) !important; }

/* hero */
.hero .wrap { display: grid; grid-template-columns: 1.5fr 1fr; gap: 56px; align-items: center; padding-block: 64px 56px; }
.hero h1 { font-family: "Cormorant", Georgia, serif; font-weight: 500; font-size: clamp(38px, 5.6vw, 60px); line-height: 1.08; margin: 0 0 18px; text-wrap: balance; }
.hero h1 em { font-style: italic; color: var(--accent); }
.hero p { max-width: 36em; margin: 0 0 26px; color: var(--ink-2); font-size: 18.5px; }
.btn { display: inline-block; text-decoration: none; padding: 12px 22px; border-radius: 3px; background: var(--accent); color: var(--accent-ink); font-weight: 600; font-size: 15px; }
.btn.ghost { background: transparent; color: var(--ink); border: 1px solid var(--rule); margin-left: 8px; }
.portrait { max-width: 340px; justify-self: end; }
.portrait img { border-radius: 4px; box-shadow: 0 18px 40px -22px rgba(0,0,0,.6); }
.portrait figcaption { font-size: 12.5px; color: var(--ink-2); margin-top: 10px; text-align: right; }

/* sections */
section { padding-block: 56px; border-top: 1px solid var(--rule); }
.sec-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 28px; flex-wrap: wrap; }
h2 { font-family: "Cormorant", Georgia, serif; font-weight: 500; font-size: 38px; margin: 0; line-height: 1.1; }
.series + .series { margin-top: 64px; padding-top: 48px; border-top: 1px dashed var(--rule); }
.series-head { display: grid; grid-template-columns: 1fr 1.4fr; gap: 32px; margin-bottom: 32px; align-items: end; }
.series-head h3 { font-family: "Cormorant", Georgia, serif; font-weight: 600; font-size: 32px; margin: 4px 0 0; line-height: 1.1; }
.series-head p { margin: 0; color: var(--ink-2); max-width: 60ch; }
.books { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px 28px; }
.books.four { grid-template-columns: repeat(4, 1fr); gap: 32px 22px; }
.book { display: grid; gap: 12px; align-content: start; }
.cover { aspect-ratio: 2 / 3; border-radius: 2px; overflow: hidden; background: var(--dark); box-shadow: 0 12px 26px -16px rgba(0,0,0,.6); }
.cover img { width: 100%; height: 100%; object-fit: cover; }
.cover.soon { display: flex; flex-direction: column; justify-content: space-between; padding: 22px 18px; color: #ECE9E1; font-family: "Cormorant", Georgia, serif; border: 1px solid #2A2B33; }
.cover.soon .t { font-size: 26px; line-height: 1.05; font-weight: 600; text-wrap: balance; }
.cover.soon .n { font-family: "IBM Plex Mono", monospace; font-size: 11px; letter-spacing: .14em; text-transform: uppercase; opacity: .75; }
.book h4 { font-family: "Cormorant", Georgia, serif; font-size: 24px; font-weight: 600; margin: 0; line-height: 1.15; }
.book .meta { color: var(--ink-2); font-size: 13.5px; margin: -6px 0 0; font-family: "IBM Plex Mono", monospace; letter-spacing: .02em; }
.book p { margin: 0; font-size: 15.5px; }
.book .note { font-size: 13.5px; color: var(--ink-2); font-style: italic; margin: 0; }
details { font-size: 15.5px; }
details summary { cursor: pointer; color: var(--accent); font-size: 14px; list-style: none; }
details summary::-webkit-details-marker { display: none; }
details summary::after { content: " ↓"; }
details[open] summary::after { content: " ↑"; }
details p { margin: 8px 0 0; }
.buy { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 4px; }
.buy a { font-family: "IBM Plex Mono", monospace; font-size: 12px; letter-spacing: .04em; text-decoration: none; padding: 7px 12px; border: 1px solid var(--rule); border-radius: 3px; color: var(--ink); }
.buy a.primary { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.buy a:hover { border-color: var(--accent); color: var(--accent); }
.buy a.primary:hover { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.buy .soon-tag { font-family: "IBM Plex Mono", monospace; font-size: 12px; letter-spacing: .04em; padding: 7px 12px; border: 1px dashed var(--rule); border-radius: 3px; color: var(--ink-2); }
.featured { grid-column: 1 / -1; display: grid; grid-template-columns: 220px 1fr; gap: 28px; padding: 24px; background: var(--paper-2); border-radius: 4px; margin-bottom: 8px; }
.featured .cover { max-width: 220px; }
.featured h4 { font-size: 28px; }

/* about */
.about .wrap { display: grid; grid-template-columns: 1fr 2fr; gap: 48px; }
.about p { max-width: 62ch; margin: 0 0 1em; }
.about p:first-of-type::first-letter { font-family: "Cormorant", serif; font-size: 3.2em; float: left; line-height: .8; padding: 6px 8px 0 0; color: var(--accent); }

/* contact */
.contact .wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.contact p { color: var(--ink-2); margin: 12px 0 0; max-width: 46ch; }
.contact ul { list-style: none; padding: 0; margin: 14px 0 0; display: grid; gap: 8px; }
.contact li a { text-decoration: none; border-bottom: 1px solid var(--rule); }
.contact li a:hover { border-color: var(--accent); color: var(--accent); }

footer { border-top: 1px solid var(--rule); padding-block: 24px 44px; color: var(--ink-2); font-size: 13.5px; }
footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

@media (max-width: 860px) {
  .books.four { grid-template-columns: repeat(2, 1fr); }
  .books { grid-template-columns: repeat(2, 1fr); }
  .series-head { grid-template-columns: 1fr; gap: 10px; }
}
@media (max-width: 640px) {
  .hero .wrap { grid-template-columns: 1fr; padding-block: 40px; gap: 32px; }
  .portrait { max-width: 240px; justify-self: start; }
  .portrait figcaption { text-align: left; }
  .books, .books.four { grid-template-columns: 1fr; max-width: 340px; }
  .featured { grid-template-columns: 1fr; }
  .about .wrap, .contact .wrap { grid-template-columns: 1fr; gap: 24px; }
  .btn.ghost { margin: 10px 0 0; }
}
@media (prefers-reduced-motion: no-preference) {
  .cover { transition: transform .25s ease; }
  .book:hover .cover { transform: translateY(-4px); }
}

/* recommended reading — a shade quieter than the catalogue */
.recommended { background: var(--paper-2); }
.recommended .featured { background: var(--paper); }
.recommended .cover.soon { background: var(--ink); color: var(--paper); }

/* combined-edition note inside a book grid */
.also { grid-column: 1 / -1; order: 99; margin: 0; padding: 14px 18px; border: 1px dashed var(--rule); border-radius: 4px; font-size: 15px; color: var(--ink-2); }
.also a { color: var(--accent); text-decoration: none; }
footer a { color: var(--ink-2); text-decoration: none; border-bottom: 1px solid var(--rule); }
footer a:hover { color: var(--accent); border-color: var(--accent); }