/* Bernard & Co Press — Design System
   Refined-minimalist literary publisher aesthetic
   Inspired by Knopf, FSG, Graywolf, Coffee House Press */

:root {
  /* Color palette — warm neutrals, single accent */
  --paper: #f8f5ef;          /* Warm cream — uncoated book paper */
  --paper-deep: #f1ece2;     /* Slightly deeper cream for sections */
  --ink: #1a1817;            /* Deep almost-black, softer than pure black */
  --ink-soft: #4a4540;       /* Secondary text — warm dark grey */
  --ink-fade: #8b8175;       /* Muted text — warm grey */
  --gold: #b8954d;           /* Accent — matches the colophon's gold */
  --gold-deep: #8a6f3a;      /* Hover state for gold */
  --rule: #d8d0c2;           /* Hairline separator — warm tan */

  /* Typography scale */
  --display: 'Cinzel', 'Trajan Pro', 'Cormorant Garamond', serif;
  --serif: 'Cormorant Garamond', 'EB Garamond', Garamond, serif;
  --body: 'Crimson Pro', 'Source Serif Pro', Georgia, serif;
  --ui: 'Inter', system-ui, sans-serif;

  /* Spacing rhythm */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4rem;
  --space-7: 6rem;
  --space-8: 8rem;

  /* Layout */
  --content-narrow: 640px;
  --content-text: 720px;
  --content-wide: 1080px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-weight: 400;
  line-height: 1.7;
  font-feature-settings: "kern" 1, "liga" 1, "onum" 1;
}

/* ==========================================
   TYPOGRAPHY
   ========================================== */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--serif);
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.01em;
  line-height: 1.2;
}

h1 {
  font-size: 3.2rem;
  font-weight: 400;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 2.2rem;
  font-weight: 400;
  margin-bottom: var(--space-3);
}

h3 {
  font-size: 1.5rem;
  font-weight: 500;
  margin-bottom: var(--space-2);
}

p {
  margin-bottom: var(--space-3);
  font-size: 1.0625rem;
  color: var(--ink-soft);
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
  transition: border-color 0.2s ease, color 0.2s ease;
}

a:hover {
  color: var(--gold-deep);
  border-bottom-color: var(--gold);
}

em, i { font-style: italic; }
strong, b { font-weight: 600; }

.lede {
  font-family: var(--serif);
  font-size: 1.5rem;
  line-height: 1.5;
  color: var(--ink);
  font-weight: 400;
  margin-bottom: var(--space-4);
}

.lede::first-letter {
  font-family: var(--display);
  font-size: 4rem;
  float: left;
  line-height: 0.85;
  margin-right: 0.5rem;
  margin-top: 0.2rem;
  color: var(--ink);
  font-weight: 500;
}

.caps {
  font-family: var(--ui);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--ink-fade);
}

/* ==========================================
   HEADER & NAVIGATION
   ========================================== */

.site-header {
  padding: var(--space-3) var(--space-5);
  border-bottom: 1px solid var(--rule);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header-inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.site-mark {
  font-family: var(--display);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink);
  border: none;
}

.site-mark:hover {
  color: var(--gold-deep);
}

.site-nav {
  display: flex;
  gap: var(--space-4);
}

.site-nav a {
  font-family: var(--ui);
  font-size: 0.82rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--ink-soft);
  border: none;
  position: relative;
  padding-bottom: 2px;
}

.site-nav a:hover {
  color: var(--ink);
}

.site-nav a.active {
  color: var(--ink);
}

.site-nav a.active::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--gold);
}

/* ==========================================
   LAYOUT CONTAINERS
   ========================================== */

main {
  min-height: calc(100vh - 240px);
}

.container {
  max-width: var(--content-wide);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

.container-text {
  max-width: var(--content-text);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

.container-narrow {
  max-width: var(--content-narrow);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

section {
  padding: var(--space-7) 0;
}

/* ==========================================
   HERO (HOMEPAGE)
   ========================================== */

.hero {
  padding: var(--space-8) var(--space-5) var(--space-7);
  text-align: center;
  background: var(--paper);
}

.hero-colophon {
  display: inline-block;
  margin-bottom: var(--space-5);
  width: 220px;
  height: 220px;
  position: relative;
}

.hero-colophon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.hero-colophon-placeholder {
  width: 220px;
  height: 220px;
  border: 1px solid var(--rule);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-5);
  font-family: var(--ui);
  font-size: 0.7rem;
  color: var(--ink-fade);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  background: var(--paper-deep);
}

.hero-wordmark {
  font-family: var(--display);
  font-size: 1.8rem;
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  margin-bottom: var(--space-3);
}

.hero-rule {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin: var(--space-4) 0;
}

.hero-rule::before, .hero-rule::after {
  content: "";
  display: block;
  width: 80px;
  height: 1px;
  background: var(--gold);
}

.hero-rule-mark {
  font-family: var(--display);
  color: var(--gold);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
}

.hero-intro {
  max-width: 480px;
  margin: var(--space-4) auto 0;
  font-family: var(--serif);
  font-size: 1.15rem;
  line-height: 1.65;
  color: var(--ink-soft);
}

/* ==========================================
   FEATURED BOOKS SECTION
   ========================================== */

.section-label {
  text-align: center;
  margin-bottom: var(--space-5);
}

.section-label .caps {
  display: inline-block;
  position: relative;
  padding: 0 var(--space-3);
}

.section-label .caps::before, .section-label .caps::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 60px;
  height: 1px;
  background: var(--rule);
}

.section-label .caps::before { right: 100%; }
.section-label .caps::after { left: 100%; }

.book-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-7) var(--space-5);
  max-width: 900px;
  margin: 0 auto;
}

.book-card {
  text-align: center;
  border: none;
  display: block;
  color: var(--ink);
}

.book-card:hover {
  color: var(--ink);
}

.book-cover {
  display: block;
  margin: 0 auto var(--space-3);
  max-width: 220px;
  width: 100%;
  box-shadow:
    0 1px 2px rgba(26, 24, 23, 0.06),
    0 4px 12px rgba(26, 24, 23, 0.08),
    0 16px 28px rgba(26, 24, 23, 0.12);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.book-card:hover .book-cover {
  transform: translateY(-4px);
  box-shadow:
    0 1px 2px rgba(26, 24, 23, 0.06),
    0 8px 18px rgba(26, 24, 23, 0.10),
    0 24px 40px rgba(26, 24, 23, 0.15);
}

.book-cover-placeholder {
  display: block;
  margin: 0 auto var(--space-3);
  max-width: 220px;
  width: 220px;
  height: 330px;
  background: var(--paper-deep);
  border: 1px solid var(--rule);
  font-family: var(--ui);
  font-size: 0.7rem;
  color: var(--ink-fade);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-3);
}

.book-title {
  font-family: var(--serif);
  font-size: 1.3rem;
  font-weight: 500;
  line-height: 1.25;
  margin-bottom: var(--space-1);
}

.book-author {
  font-family: var(--body);
  font-size: 0.95rem;
  color: var(--ink-fade);
  font-style: italic;
}

/* ==========================================
   BOOK DETAIL PAGE
   ========================================== */

.book-detail {
  padding: var(--space-7) var(--space-5);
  max-width: var(--content-wide);
  margin: 0 auto;
}

.book-detail-grid {
  display: grid;
  grid-template-columns: minmax(280px, 360px) 1fr;
  gap: var(--space-7);
  align-items: start;
}

.book-detail-cover img {
  width: 100%;
  height: auto;
  box-shadow:
    0 1px 2px rgba(26, 24, 23, 0.06),
    0 6px 16px rgba(26, 24, 23, 0.10),
    0 24px 48px rgba(26, 24, 23, 0.16);
}

.book-detail-info h1 {
  font-size: 2.8rem;
  line-height: 1.1;
  margin-bottom: var(--space-2);
}

.book-detail-author {
  font-family: var(--body);
  font-style: italic;
  font-size: 1.1rem;
  color: var(--ink-soft);
  margin-bottom: var(--space-4);
}

.book-detail-meta {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: var(--space-1) var(--space-3);
  padding: var(--space-3) 0;
  margin: var(--space-4) 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  font-family: var(--body);
  font-size: 0.95rem;
}

.book-detail-meta dt {
  font-family: var(--ui);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-fade);
  padding-top: 0.15rem;
}

.book-detail-meta dd {
  color: var(--ink-soft);
}

.book-detail-description p {
  font-family: var(--body);
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--ink-soft);
}

.buy-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.buy-link {
  font-family: var(--ui);
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 500;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  transition: background 0.25s ease, color 0.25s ease;
}

.buy-link:hover {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

/* ==========================================
   PAGE HEADERS (interior pages)
   ========================================== */

.page-header {
  padding: var(--space-7) var(--space-5) var(--space-5);
  text-align: center;
  border-bottom: 1px solid var(--rule);
}

.page-header h1 {
  font-family: var(--serif);
  font-size: 2.6rem;
  font-weight: 400;
  margin-bottom: var(--space-2);
}

.page-header-ornament {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.page-header-ornament::before, .page-header-ornament::after {
  content: "";
  width: 40px;
  height: 1px;
  background: var(--gold);
}

.page-header-ornament-mark {
  font-family: var(--display);
  color: var(--gold);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
}

/* ==========================================
   AUTHOR LIST
   ========================================== */

.author-list {
  max-width: var(--content-text);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

.author-entry {
  padding: var(--space-5) 0;
  border-bottom: 1px solid var(--rule);
}

.author-entry:last-child { border-bottom: none; }

.author-entry h3 {
  font-family: var(--serif);
  font-size: 1.6rem;
  font-weight: 500;
  margin-bottom: var(--space-2);
}

.author-entry .caps {
  margin-bottom: var(--space-3);
  display: block;
}

.author-entry p {
  font-family: var(--body);
  font-size: 1.0rem;
  line-height: 1.75;
  color: var(--ink-soft);
}

/* ==========================================
   FOOTER
   ========================================== */

.site-footer {
  margin-top: var(--space-7);
  padding: var(--space-5) var(--space-5) var(--space-3);
  border-top: 1px solid var(--rule);
  background: var(--paper-deep);
  text-align: center;
}

.footer-mark {
  font-family: var(--display);
  font-size: 0.85rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: var(--space-2);
}

.footer-ornament {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  margin: var(--space-2) 0;
}

.footer-ornament::before, .footer-ornament::after {
  content: "";
  width: 40px;
  height: 1px;
  background: var(--gold);
}

.footer-ornament-mark {
  font-family: var(--display);
  color: var(--gold);
  font-size: 0.65rem;
}

.footer-info {
  font-family: var(--body);
  font-size: 0.85rem;
  color: var(--ink-fade);
  margin-top: var(--space-2);
}

.footer-info a {
  color: var(--ink-fade);
  border: none;
}

.footer-info a:hover {
  color: var(--gold-deep);
}

/* ==========================================
   RESPONSIVE
   ========================================== */

@media (max-width: 768px) {
  html { font-size: 16px; }
  .site-header { padding: var(--space-2) var(--space-3); }
  .site-header-inner { flex-direction: column; gap: var(--space-2); }
  .site-nav { gap: var(--space-3); flex-wrap: wrap; justify-content: center; }
  .site-nav a { font-size: 0.72rem; }
  .container, .container-text, .container-narrow {
    padding: 0 var(--space-3);
  }
  .hero { padding: var(--space-6) var(--space-3) var(--space-5); }
  .hero-colophon, .hero-colophon-placeholder { width: 160px; height: 160px; }
  .hero-wordmark { font-size: 1.3rem; letter-spacing: 0.22em; }
  .hero-intro { font-size: 1rem; }
  section { padding: var(--space-5) 0; }
  .book-detail { padding: var(--space-5) var(--space-3); }
  .book-detail-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
  .book-detail-cover {
    max-width: 280px;
    margin: 0 auto;
  }
  .book-detail-info h1 { font-size: 2rem; }
  .book-detail-meta {
    grid-template-columns: 1fr;
    gap: var(--space-1);
  }
  .book-detail-meta dt { padding-top: var(--space-1); }
  h1 { font-size: 2.4rem; }
  h2 { font-size: 1.7rem; }
  .lede { font-size: 1.2rem; }
  .lede::first-letter { font-size: 3rem; }
}