/* ============================================================ STYLESHEET ============================================================ */

/* ============================================================
   1. CSS VARIABLES — CHANGE YOUR COLORS & FONTS HERE
   ============================================================ */
:root {
  /* --- Color Palette ---
     To change the site's colors, edit the values below.
     All other color references in this file use these variables. */

  --color-bg:          #0e0d0c;   /* Main background — near black with warm tone */
  --color-bg-raised:   #161412;   /* Slightly lighter panels/cards */
  --color-bg-border:   #2a2622;   /* Subtle borders between sections */

  --color-text:        #e8e0d0;   /* Primary text — warm cream/parchment */
  --color-text-muted:  #8a7f72;   /* Secondary/quiet text */
  --color-text-faint:  #4a433b;   /* Very quiet — placeholders, dividers */

  --color-accent:      #8b1a1a;   /* Primary accent — deep blood red */
  --color-accent-bright: #c0392b; /* Hover state / brighter red */
  --color-accent-gold: #b8966a;   /* Secondary accent — aged gold */
  --color-accent-gold-bright: #d4aa7d; /* Gold hover */

  /* --- Typography ---
     Change font names here. If you pick a new Google Font,
     also update the <link> in each HTML file's <head>. */
  --font-display:  'Playfair Display', Georgia, serif;  /* Headlines, title */
  --font-body:     'Lora', Georgia, serif;              /* Body text, descriptions */
  --font-ui:       'Cormorant Garamond', Georgia, serif; /* Nav, buttons, UI labels */

  /* --- Spacing & Layout ---
     Controls how wide content goes and padding sizes */
  --max-width:       1100px;  /* Maximum content width */
  --section-padding: 5rem;    /* Vertical padding for major sections */
  --gutter:          2rem;    /* Horizontal page padding */

  /* --- Decorative ---
     The horizontal rule / ornamental divider style */
  --rule-color: #3a332a;
}


/* ============================================================
   2. RESET & BASE STYLES
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;  /* Smooth scrolling for anchor links */
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1.0625rem;   /* ~17px — slightly larger for readability */
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--color-accent-gold);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-accent-gold-bright);
}

/* Centered content wrapper — used on every page */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* Ornamental horizontal rule — used between sections */
.ornament {
  text-align: center;
  color: var(--color-accent);
  font-size: 1.2rem;
  letter-spacing: 0.5em;
  margin: 3rem 0;
  opacity: 0.6;
}


/* ============================================================
   3. TYPOGRAPHY
   ============================================================ */

/* Page/section titles */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
}

h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); }  /* clamp() = responsive size */
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
h3 { font-size: clamp(1.3rem, 3vw, 1.8rem); }
h4 { font-size: 1.1rem; letter-spacing: 0.05em; }

/* Small section label above headings (e.g. "— Latest News —") */
.section-label {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-accent-gold);
  display: block;
  margin-bottom: 0.75rem;
}

p {
  margin-bottom: 1.25rem;
  color: var(--color-text);
}

/* Muted / secondary paragraph text */
.text-muted {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}


/* ============================================================
   4. NAVIGATION
   ============================================================ */
.site-nav {
  position: sticky;      /* Sticks to top when scrolling */
  top: 0;
  z-index: 100;
  background-color: rgba(14, 13, 12, 0.95);  /* Slightly transparent bg */
  backdrop-filter: blur(8px);                /* Frosted glass effect */
  border-bottom: 1px solid var(--color-bg-border);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
}

/* Site name / logo in nav */
.nav-logo {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-style: italic;
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: 0.03em;
}

.nav-logo:hover {
  color: var(--color-accent-gold);
}

/* Nav links list */
.nav-links {
  display: flex;
  list-style: none;
  gap: 2.5rem;
}

.nav-links a {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.2s ease;
  position: relative;
  padding-bottom: 2px;
}

/* Underline animation on nav hover */
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width 0.3s ease;
}

.nav-links a:hover {
  color: var(--color-text);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-links a.active {
  color: var(--color-text);
}

/* Hamburger menu button — hidden on desktop, shown on mobile */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--color-text);
  transition: all 0.3s ease;
}


/* ============================================================
   5. BUTTONS
   ============================================================ */

/* Primary button — red/accent */
.btn {
  display: inline-block;
  font-family: var(--font-ui);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 0.75rem 2rem;
  border: 1px solid var(--color-accent);
  color: var(--color-text);
  background: transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}

.btn:hover {
  background: var(--color-accent);
  color: var(--color-text);
  border-color: var(--color-accent);
}

/* Gold/secondary button variant */
.btn-gold {
  border-color: var(--color-accent-gold);
  color: var(--color-accent-gold);
}

.btn-gold:hover {
  background: var(--color-accent-gold);
  color: var(--color-bg);
  border-color: var(--color-accent-gold);
}

/* Filled / solid button */
.btn-solid {
  background: var(--color-accent);
  color: var(--color-text);
}

.btn-solid:hover {
  background: var(--color-accent-bright);
  border-color: var(--color-accent-bright);
}


/* ============================================================
   6. FOOTER
   ============================================================ */
.site-footer {
  border-top: 1px solid var(--color-bg-border);
  padding: 3rem var(--gutter);
  text-align: center;
  margin-top: 6rem;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.footer-name {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-style: italic;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  list-style: none;
  margin: 1rem 0;
}

.footer-links a {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-faint);
}

.footer-links a:hover {
  color: var(--color-text-muted);
}

.footer-copy {
  font-size: 0.75rem;
  color: var(--color-text-faint);
  margin-top: 1rem;
}


/* ============================================================
   7. HOMEPAGE — index.html
   ============================================================ */

/* Hero / Banner section */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  padding: 4rem var(--gutter);
}

/* Background texture overlay for hero
   To use a real background image, add: background-image: url('your-image.jpg');
   to the .hero-bg rule below and remove the gradient */
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 50% 60%, rgba(139, 26, 26, 0.12) 0%, transparent 65%),
    radial-gradient(ellipse at 20% 20%, rgba(184, 150, 106, 0.05) 0%, transparent 50%);
  z-index: 0;
}

/* Decorative vertical lines on hero sides */
.hero-bg::before,
.hero-bg::after {
  content: '';
  position: absolute;
  top: 10%;
  bottom: 10%;
  width: 1px;
  background: linear-gradient(to bottom, transparent, var(--color-bg-border), transparent);
}
.hero-bg::before { left: 4rem; }
.hero-bg::after  { right: 4rem; }

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

/* Kat Oresnik headline */
.hero-title {
  font-size: clamp(3rem, 8vw, 6rem);
  line-height: 1.05;
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
}

/* Red accent on part of the name — wrap a <span class="accent"> around a word */
.accent { color: var(--color-accent); }
.accent-gold { color: var(--color-accent-gold); }

.hero-tagline {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 2.5rem;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* News & Updates section on homepage */
.news-section {
  padding: var(--section-padding) 0;
  border-top: 1px solid var(--color-bg-border);
}

.news-grid {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
  margin-top: 2.5rem;
}

/* Individual news card */
.news-card {
  background: var(--color-bg-raised);
  border: 1px solid var(--color-bg-border);
  padding: 1.75rem;
  position: relative;
  transition: border-color 0.3s ease;
}

.news-card:hover {
  border-color: var(--color-accent);
}

/* Red top border on news card */
.news-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--color-accent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.news-card:hover::before {
  opacity: 1;
}

.news-date {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent-gold);
  margin-bottom: 0.5rem;
}

.news-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
}

.news-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* Featured/querying status banner */
.status-banner {
  background: var(--color-bg-raised);
  border: 1px solid var(--color-bg-border);
  border-left: 3px solid var(--color-accent-gold);
  padding: 1.5rem 2rem;
  margin: 3rem 0;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.status-banner .label {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent-gold);
  white-space: nowrap;
}

.status-banner p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}


/* ============================================================
   8. NOVELS PAGE — novels.html
   ============================================================ */

/* Page header banner used on interior pages */
.page-header {
  padding: 5rem var(--gutter) 3rem;
  text-align: center;
  border-bottom: 1px solid var(--color-bg-border);
  position: relative;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 100%, rgba(139, 26, 26, 0.08) 0%, transparent 60%);
}

.page-header h1,
.page-header p {
  position: relative;
  z-index: 1;
}

.page-header p {
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0.75rem auto 0;
}

/* Genre section heading */
.genre-section {
  padding: var(--section-padding) 0 2rem;
}

.genre-label {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

/* Horizontal line extending from genre label */
.genre-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-bg-border);
}

/* Grid of book cards */
.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
}

/* Individual book card */
.book-card {
  background: var(--color-bg-raised);
  border: 1px solid var(--color-bg-border);
  display: flex;
  flex-direction: column;
  transition: border-color 0.3s ease, transform 0.3s ease;
}

.book-card:hover {
  border-color: var(--color-accent-gold);
  transform: translateY(-4px);  /* Subtle lift on hover */
}

/* Book cover image area
   If you have a cover image, put it in an <img> tag here.
   If no image, this placeholder will show. */
.book-cover {
  aspect-ratio: 2 / 3;           /* Standard book cover ratio */
  background: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
  max-height: 150px;
  border-bottom: 1px solid var(--color-bg-border);
}

/* Placeholder graphic when no cover image is available */
.book-cover-placeholder {
  text-align: center;
  padding: 2rem;
}

.book-cover-placeholder .cover-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  line-height: 1.3;
  color: var(--color-text-muted);
  font-style: italic;
}

/* Decorative spine line on placeholder */
.book-cover-placeholder::before {
  content: '';
  display: block;
  width: 1px;
  height: 3rem;
  background: var(--color-accent);
  margin: 0 auto 1rem;
}

.book-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.book-info {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.book-genre-tag {
  font-family: var(--font-ui);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent-gold);
  margin-bottom: 0.5rem;
}

.book-title {
  font-size: 1.2rem;
  margin-bottom: 0.75rem;
}

.book-desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  flex: 1;
  margin-bottom: 1.25rem;
}

.book-card .btn {
  align-self: flex-start;
  font-size: 0.7rem;
  padding: 0.6rem 1.5rem;
}


/* ============================================================
   9. INDIVIDUAL BOOK PAGE — book-template.html
   ============================================================ */
.book-detail {
  padding: var(--section-padding) 0;
}

.book-detail-inner {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 4rem;
  align-items: start;
}

.book-detail-cover {
  aspect-ratio: 2 / 3;
  background: var(--color-bg-raised);
  border: 1px solid var(--color-bg-border);
  display: flex;
  align-items: center;
  justify-content: center;
  position: sticky;   /* Cover sticks as you scroll through the description */
  top: 6rem;
}

.book-detail-content h1 {
  margin-bottom: 0.5rem;
}

.book-meta {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin: 1.25rem 0 2rem;
}

/* Small metadata pill (Genre, Status, etc.) */
.book-meta-item {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  border: 1px solid var(--color-bg-border);
  padding: 0.35rem 0.75rem;
}

.book-meta-item span {
  color: var(--color-accent-gold);
}

.book-synopsis {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--color-text);
}

.book-synopsis p {
  margin-bottom: 1.5rem;
}

/* Pull quote / tagline block inside book detail */
.book-pull-quote {
  border-left: 2px solid var(--color-accent);
  padding-left: 1.5rem;
  margin: 2.5rem 0;
  font-style: italic;
  font-size: 1.1rem;
  color: var(--color-text-muted);
}


/* ============================================================
   10. ABOUT PAGE — about.html
   ============================================================ */
.about-section {
  padding: var(--section-padding) 0;
}

.about-inner {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 5rem;
  align-items: start;
}

.about-photo-wrap {
  position: sticky;
  top: 6rem;
}

/* Author photo frame */
.about-photo {
  width: 100%;
  aspect-ratio: 3 / 4;    /* Portrait orientation — adjust if needed */
  object-fit: cover;
  object-position: top;   /* Crop from top — keeps face visible */
  border: 1px solid var(--color-bg-border);
  display: block;
}

/* Placeholder when no photo yet */
.about-photo-placeholder {
  width: 100%;
  aspect-ratio: 3 / 4;
  background: var(--color-bg-raised);
  border: 1px solid var(--color-bg-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-faint);
  font-family: var(--font-ui);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.about-bio h2 {
  margin-bottom: 0.5rem;
}

.about-bio .section-label {
  margin-bottom: 1.5rem;
}

.about-bio p {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--color-text);
  margin-bottom: 1.5rem;
}

/* Credential tags below bio */
.about-credentials {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 2.5rem;
}

.credential-tag {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  border: 1px solid var(--color-bg-border);
  padding: 0.4rem 0.9rem;
}


/* ============================================================
   11. CONTACT PAGE — contact.html
   ============================================================ */
.contact-section {
  padding: var(--section-padding) 0;
}

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 5rem;
  align-items: start;
}

.contact-intro h2 {
  margin-bottom: 1rem;
}

.contact-intro p {
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

/* Social media link buttons */
.social-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 2rem;
}

.social-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 1.25rem;
  border: 1px solid var(--color-bg-border);
  background: var(--color-bg-raised);
  color: var(--color-text-muted);
  text-decoration: none;
  font-family: var(--font-ui);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  transition: border-color 0.25s, color 0.25s;
}

.social-link:hover {
  border-color: var(--color-accent-gold);
  color: var(--color-accent-gold);
}

/* Small icon area for social links — uses text/emoji icons
   Replace with SVG icons if you prefer */
.social-link .icon {
  font-size: 1.1rem;
  width: 1.5rem;
  text-align: center;
}

/* Contact form (Formspree-compatible) */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.form-group input,
.form-group textarea,
.form-group select {
  background: var(--color-bg-raised);
  border: 1px solid var(--color-bg-border);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 0.85rem 1rem;
  outline: none;
  transition: border-color 0.25s ease;
  width: 100%;
  /* Remove default browser styles */
  -webkit-appearance: none;
  border-radius: 0;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-faint);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--color-accent-gold);
}

.form-group textarea {
  min-height: 160px;
  resize: vertical;  /* Allow vertical resize only */
}

/* Form submit button — full width */
.form-submit {
  width: 100%;
  padding: 1rem;
  font-size: 0.8rem;
  text-align: center;
}


/* ============================================================
   12. ANIMATIONS
   ============================================================ */

/* Fade-in animation — applied to elements on page load */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeInUp 0.8s ease forwards;
}

/* Staggered delays — add class to create cascade effect */
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.25s; }
.delay-3 { animation-delay: 0.4s; }
.delay-4 { animation-delay: 0.55s; }


/* ============================================================
   13. RESPONSIVE / MOBILE STYLES
   ============================================================
   These rules override the desktop styles for smaller screens.
   Breakpoints:
   - 900px: Tablets (stack two-column layouts)
   - 640px: Mobile phones (smaller text, condensed nav)
   ============================================================ */

@media (max-width: 900px) {
  :root {
    --section-padding: 3.5rem;
  }

  /* Stack about page to single column */
  .about-inner {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .about-photo-wrap {
    position: static;
    max-width: 280px;
  }

  /* Stack book detail page */
  .book-detail-inner {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .book-detail-cover {
    position: static;
    max-width: 240px;
  }

  /* Stack contact page */
  .contact-inner {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

@media (max-width: 640px) {
  :root {
    --gutter: 1.25rem;
    --section-padding: 2.5rem;
  }

  /* Show hamburger, hide nav links by default */
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 4rem;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-bg-border);
    flex-direction: column;
    gap: 0;
    padding: 1rem 0;
  }

  /* When nav is open (toggled by JS), show links */
  .nav-links.open {
    display: flex;
  }

  .nav-links li {
    padding: 0.75rem var(--gutter);
    border-bottom: 1px solid var(--color-bg-border);
  }

  .nav-links a::after {
    display: none;  /* Remove underline animation on mobile */
  }

  .hero-bg::before,
  .hero-bg::after {
    display: none;  /* Remove decorative lines on mobile */
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
  }

  .hero-cta .btn {
    width: 100%;
    text-align: center;
  }

  .books-grid {
    grid-template-columns: 1fr;
  }

  .news-grid {
    grid-template-columns: 1fr;
  }

  .status-banner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .footer-links {
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
  }

  /* Book detail — full width cover on mobile */
  .book-detail-cover {
    max-width: 100%;
    aspect-ratio: 2 / 3;
    max-height: 320px;
  }
}
