/*
 Theme Name:   Alma Libros Child
 Theme URI:    https://almalibros.cloud
 Description:  Tema hijo para Alma Libros — librería digital elegante y literaria
 Author:       Alma Libros
 Author URI:   https://almalibros.cloud
 Template:     astra
 Version:      1.0.0
 License:      GNU General Public License v2 or later
 License URI:  http://www.gnu.org/licenses/gpl-2.0.html
 Text Domain:  almalibros-child
*/

/* ============================================================
   VARIABLES & RESET
   ============================================================ */
:root {
  --cream:       #faf7f2;
  --cream-dark:  #f0ead8;
  --ink:         #2C2416;
  --ink-light:   #5a4a35;
  --chestnut:    #8B6F4E;
  --chestnut-lt: #b8966d;
  --white:       #ffffff;
  --divider:     #ddd0bc;
  --font-serif:  'Playfair Display', Georgia, serif;
  --font-sans:   'Lato', 'Helvetica Neue', Arial, sans-serif;
  --transition:  0.3s ease;
  --shadow-sm:   0 2px 12px rgba(44,36,22,0.08);
  --shadow-md:   0 8px 32px rgba(44,36,22,0.12);
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--cream);
  color: var(--ink);
  font-family: var(--font-sans);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--chestnut); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--chestnut-lt); }

/* ============================================================
   TYPOGRAPHY
   ============================================================ */
h1, h2, h3, h4, h5 {
  font-family: var(--font-serif);
  color: var(--ink);
  line-height: 1.2;
  font-weight: 700;
}

h1 { font-size: clamp(2.4rem, 6vw, 5rem); }
h2 { font-size: clamp(1.8rem, 4vw, 3rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }
p  { font-size: 1rem; color: var(--ink-light); }

.eyebrow {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--chestnut);
}

/* ============================================================
   LAYOUT HELPERS
   ============================================================ */
.container {
  width: 90%;
  max-width: 1100px;
  margin: 0 auto;
}

.section-pad { padding: 100px 0; }

.divider-line {
  width: 48px;
  height: 2px;
  background: var(--chestnut);
  margin: 1rem 0 1.5rem;
}

.divider-line.centered { margin: 1rem auto 1.5rem; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-block;
  padding: 14px 36px;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: 2px;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--chestnut);
  color: var(--white);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
  background: var(--ink);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--chestnut);
  border: 1.5px solid var(--chestnut);
}
.btn-outline:hover {
  background: var(--chestnut);
  color: var(--white);
  transform: translateY(-2px);
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.alma-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 20px 0;
  background: rgba(250,247,242,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition);
}

.alma-nav.scrolled {
  padding: 14px 0;
  border-bottom-color: var(--divider);
  box-shadow: var(--shadow-sm);
}

.alma-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.alma-logo {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.03em;
}

.alma-logo span { color: var(--chestnut); }

.alma-nav ul {
  list-style: none;
  display: flex;
  gap: 2.5rem;
  align-items: center;
}

.alma-nav ul li a {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-light);
  transition: color var(--transition);
}

.alma-nav ul li a:hover { color: var(--chestnut); }

.alma-nav ul li a.nav-cta {
  color: var(--white);
  background: var(--chestnut);
  padding: 10px 22px;
  border-radius: 2px;
}
.alma-nav ul li a.nav-cta:hover { background: var(--ink); }

.nav-hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; }
.nav-hamburger span { width: 24px; height: 2px; background: var(--ink); transition: all var(--transition); }

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--cream);
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

/* Decorative background text */
.hero::before {
  content: 'ALMA';
  position: absolute;
  top: 50%;
  right: -2%;
  transform: translateY(-50%);
  font-family: var(--font-serif);
  font-size: 30vw;
  font-weight: 900;
  color: rgba(139,111,78,0.04);
  line-height: 1;
  pointer-events: none;
  user-select: none;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: center;
}

.hero-content { position: relative; z-index: 1; }

.hero-content .eyebrow { margin-bottom: 1rem; }

.hero-title {
  font-size: clamp(2.6rem, 5vw, 4.4rem);
  line-height: 1.1;
  margin-bottom: 0.4rem;
  color: var(--ink);
}

.hero-title em {
  font-style: italic;
  color: var(--chestnut);
}

.hero-subtitle {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-style: italic;
  color: var(--ink-light);
  margin-bottom: 1.5rem;
}

.hero-description {
  font-size: 1rem;
  color: var(--ink-light);
  max-width: 480px;
  margin-bottom: 2.5rem;
  line-height: 1.8;
}

.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; align-items: center; }

.hero-price {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--ink);
}

.hero-price span {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-light);
}

/* Book Cover Mockup */
.hero-book { position: relative; z-index: 1; display: flex; justify-content: center; }

.book-wrapper {
  position: relative;
  width: 280px;
}

.book-cover {
  width: 100%;
  aspect-ratio: 2/3;
  background: linear-gradient(135deg, var(--ink) 0%, #4a3520 100%);
  border-radius: 4px 12px 12px 4px;
  box-shadow:
    -6px 6px 0 rgba(0,0,0,0.15),
    -12px 12px 0 rgba(0,0,0,0.08),
    var(--shadow-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2.5rem 2rem;
  position: relative;
  overflow: hidden;
}

/* Subtle texture on book cover */
.book-cover::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(255,255,255,0.015) 2px,
    rgba(255,255,255,0.015) 4px
  );
}

/* Decorative ornament */
.book-cover::after {
  content: '❧';
  position: absolute;
  bottom: 1.5rem;
  font-size: 1.4rem;
  color: var(--chestnut-lt);
  opacity: 0.6;
}

.book-cover-title {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--cream);
  text-align: center;
  line-height: 1.3;
  margin-bottom: 0.5rem;
  position: relative;
  z-index: 1;
}

.book-cover-author {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--chestnut-lt);
  position: relative;
  z-index: 1;
}

.book-ornament {
  width: 40px;
  height: 1px;
  background: var(--chestnut-lt);
  margin: 1rem auto;
  opacity: 0.5;
  position: relative;
  z-index: 1;
}

.book-badge {
  position: absolute;
  top: -16px;
  right: -16px;
  width: 80px;
  height: 80px;
  background: var(--chestnut);
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  color: var(--white);
  text-align: center;
}

.book-badge .badge-label {
  font-size: 0.55rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 700;
  opacity: 0.85;
}

.book-badge .badge-price {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1;
}

/* ============================================================
   FEATURES BAR
   ============================================================ */
.features-bar {
  background: var(--ink);
  padding: 22px 0;
}

.features-bar .container {
  display: flex;
  justify-content: center;
  gap: 3rem;
  flex-wrap: wrap;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--cream-dark);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.feature-item svg { color: var(--chestnut-lt); flex-shrink: 0; }

/* ============================================================
   ABOUT BOOK SECTION
   ============================================================ */
.about-book {
  padding: 110px 0;
  background: var(--cream);
}

.about-book .container {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 6rem;
  align-items: center;
}

.book-details { }
.book-details .eyebrow { margin-bottom: 1rem; }
.book-details h2 { margin-bottom: 1.2rem; }
.book-details p { margin-bottom: 1.2rem; line-height: 1.9; }

.book-meta {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  margin: 2rem 0;
  padding: 1.5rem 0;
  border-top: 1px solid var(--divider);
  border-bottom: 1px solid var(--divider);
}

.meta-item { }
.meta-item .meta-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--chestnut);
  margin-bottom: 0.2rem;
}
.meta-item .meta-value {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--ink);
  font-weight: 700;
}

.book-quote {
  position: relative;
  padding: 2.5rem 2rem 2.5rem 3.5rem;
  background: var(--cream-dark);
  border-left: 3px solid var(--chestnut);
  border-radius: 0 4px 4px 0;
}

.book-quote::before {
  content: '"';
  position: absolute;
  top: -0.5rem;
  left: 1rem;
  font-family: var(--font-serif);
  font-size: 5rem;
  color: var(--chestnut);
  opacity: 0.25;
  line-height: 1;
}

.book-quote p {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-style: italic;
  color: var(--ink);
  line-height: 1.8;
  margin: 0;
}

.book-quote cite {
  display: block;
  margin-top: 1rem;
  font-size: 0.75rem;
  font-style: normal;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--chestnut);
}

/* ============================================================
   AUTHOR SECTION
   ============================================================ */
.author-section {
  background: var(--cream-dark);
  padding: 110px 0;
  position: relative;
  overflow: hidden;
}

.author-section::before {
  content: '✦';
  position: absolute;
  bottom: -5%;
  left: -2%;
  font-size: 20rem;
  color: rgba(139,111,78,0.05);
  pointer-events: none;
}

.author-section .container {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 6rem;
  align-items: center;
}

.author-image-wrap {
  position: relative;
}

.author-photo {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  border-radius: 4px;
  box-shadow: var(--shadow-md);
  filter: grayscale(20%);
}

/* Fallback placeholder when no real photo */
.author-photo-placeholder {
  width: 100%;
  aspect-ratio: 3/4;
  background: linear-gradient(160deg, #d9c9b2 0%, #b8a08a 100%);
  border-radius: 4px;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  opacity: 0.7;
}

.author-image-caption {
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  background: var(--ink);
  color: var(--cream);
  text-align: center;
  padding: 12px;
  font-family: var(--font-serif);
  font-size: 0.9rem;
  font-style: italic;
  border-radius: 0 0 4px 4px;
}

.author-content .eyebrow { margin-bottom: 1rem; }
.author-content h2 { margin-bottom: 0.3rem; }
.author-content .author-role {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--chestnut);
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
}
.author-content p { margin-bottom: 1.1rem; line-height: 1.9; }

.author-awards {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin: 2rem 0;
}

.award-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--white);
  border: 1px solid var(--divider);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--ink);
}

.award-tag::before { content: '★'; color: var(--chestnut); font-size: 0.65rem; }

/* ============================================================
   TESTIMONIALS
   ============================================================ */
.testimonials {
  padding: 90px 0;
  background: var(--ink);
  overflow: hidden;
}

.testimonials .section-header { text-align: center; margin-bottom: 3.5rem; }
.testimonials .section-header h2 { color: var(--cream); }
.testimonials .section-header .eyebrow { color: var(--chestnut-lt); }
.testimonials .section-header .divider-line { background: var(--chestnut-lt); }

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.testimonial-card {
  background: rgba(250,247,242,0.05);
  border: 1px solid rgba(250,247,242,0.1);
  padding: 2rem;
  border-radius: 4px;
  transition: background var(--transition);
}

.testimonial-card:hover { background: rgba(250,247,242,0.08); }

.testimonial-stars {
  color: var(--chestnut-lt);
  font-size: 0.85rem;
  letter-spacing: 2px;
  margin-bottom: 1rem;
}

.testimonial-card p {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 0.98rem;
  color: var(--cream-dark);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.testimonial-author {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--chestnut-lt);
}

/* ============================================================
   BLOG SECTION
   ============================================================ */
.blog-section {
  padding: 110px 0;
  background: var(--cream);
}

.section-header {
  margin-bottom: 3.5rem;
}

.section-header.centered { text-align: center; }

.section-header h2 { margin-bottom: 0.5rem; }

.section-header p {
  font-size: 1.05rem;
  max-width: 520px;
}

.section-header.centered p { margin: 0 auto; }

.blog-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 1.5rem;
}

.blog-card {
  background: var(--white);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
}

.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.blog-card-image {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  background: var(--cream-dark);
}

/* Placeholder when no real image */
.blog-card-image-placeholder {
  width: 100%;
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, var(--cream-dark) 0%, var(--divider) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  opacity: 0.4;
}

.blog-card.featured .blog-card-image-placeholder { aspect-ratio: 4/3; font-size: 4rem; }
.blog-card.featured .blog-card-image { aspect-ratio: 4/3; }

.blog-card-body { padding: 1.8rem; flex: 1; display: flex; flex-direction: column; }

.blog-card-category {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--chestnut);
  margin-bottom: 0.6rem;
}

.blog-card h3 {
  font-size: clamp(1rem, 2vw, 1.25rem);
  margin-bottom: 0.8rem;
  line-height: 1.3;
}

.blog-card h3 a { color: var(--ink); transition: color var(--transition); }
.blog-card h3 a:hover { color: var(--chestnut); }

.blog-card p {
  font-size: 0.9rem;
  line-height: 1.75;
  flex: 1;
  margin-bottom: 1.2rem;
}

.blog-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--divider);
  margin-top: auto;
}

.blog-card-date {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-light);
  opacity: 0.6;
}

.blog-read-more {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--chestnut);
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.blog-read-more:hover { color: var(--ink); }
.blog-read-more::after { content: '→'; transition: transform var(--transition); }
.blog-read-more:hover::after { transform: translateX(3px); }

.blog-cta { text-align: center; margin-top: 3rem; }

/* ============================================================
   NEWSLETTER
   ============================================================ */
.newsletter {
  background: var(--chestnut);
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.newsletter::before {
  content: '"';
  position: absolute;
  top: -3rem;
  left: 3%;
  font-family: var(--font-serif);
  font-size: 20rem;
  color: rgba(255,255,255,0.07);
  line-height: 1;
  pointer-events: none;
}

.newsletter .eyebrow { color: rgba(250,247,242,0.7); margin-bottom: 0.8rem; }
.newsletter h2 { color: var(--white); margin-bottom: 0.8rem; font-size: clamp(1.6rem, 3vw, 2.4rem); }
.newsletter p { color: rgba(250,247,242,0.8); max-width: 500px; margin: 0 auto 2rem; }

.newsletter-form {
  display: flex;
  gap: 0;
  max-width: 480px;
  margin: 0 auto;
  border-radius: 3px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.newsletter-form input {
  flex: 1;
  padding: 15px 20px;
  border: none;
  outline: none;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  background: var(--white);
  color: var(--ink);
}

.newsletter-form input::placeholder { color: #aaa; }

.newsletter-form button {
  padding: 15px 28px;
  background: var(--ink);
  color: var(--cream);
  border: none;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background var(--transition);
  white-space: nowrap;
}

.newsletter-form button:hover { background: #1a0f05; }

.newsletter-note {
  margin-top: 1rem;
  font-size: 0.72rem;
  color: rgba(250,247,242,0.5);
  letter-spacing: 0.05em;
}

/* ============================================================
   FOOTER
   ============================================================ */
.alma-footer {
  background: var(--ink);
  padding: 60px 0 30px;
  color: var(--cream-dark);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 4rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(250,247,242,0.1);
  margin-bottom: 2rem;
}

.footer-brand .alma-logo { color: var(--cream); }
.footer-brand .alma-logo span { color: var(--chestnut-lt); }

.footer-brand p {
  color: rgba(250,247,242,0.5);
  font-size: 0.88rem;
  margin-top: 1rem;
  line-height: 1.75;
}

.footer-col h4 {
  color: var(--cream);
  font-size: 0.7rem;
  font-family: var(--font-sans);
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
}

.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 0.6rem; }
.footer-col ul li a {
  color: rgba(250,247,242,0.5);
  font-size: 0.88rem;
  transition: color var(--transition);
}
.footer-col ul li a:hover { color: var(--cream); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-copy {
  font-size: 0.75rem;
  color: rgba(250,247,242,0.35);
  letter-spacing: 0.05em;
}

.footer-social { display: flex; gap: 1rem; }
.footer-social a {
  width: 36px;
  height: 36px;
  border: 1px solid rgba(250,247,242,0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(250,247,242,0.5);
  font-size: 0.8rem;
  transition: all var(--transition);
}
.footer-social a:hover {
  border-color: var(--chestnut-lt);
  color: var(--chestnut-lt);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .hero .container,
  .about-book .container,
  .author-section .container {
    gap: 3.5rem;
  }

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

  .blog-card.featured { grid-column: span 2; }
}

@media (max-width: 768px) {
  .alma-nav ul { display: none; }
  .nav-hamburger { display: flex; }

  .alma-nav ul.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: 0;
    background: var(--cream);
    align-items: center;
    justify-content: center;
    gap: 2rem;
    z-index: 99;
  }

  .alma-nav ul.open li a { font-size: 1.2rem; }

  .hero .container,
  .about-book .container,
  .author-section .container {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .hero { min-height: auto; padding: 120px 0 80px; }
  .hero-book { order: -1; }
  .book-wrapper { width: 200px; margin: 0 auto; }

  .author-section .container { grid-template-columns: 1fr; }
  .author-image-wrap { max-width: 280px; margin: 0 auto; }

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

  .blog-grid {
    grid-template-columns: 1fr;
  }
  .blog-card.featured { grid-column: auto; }

  .footer-top { grid-template-columns: 1fr; gap: 2rem; }
  .features-bar .container { gap: 1.5rem; }

  .newsletter-form { flex-direction: column; }
  .newsletter-form input,
  .newsletter-form button { width: 100%; }
}

@media (max-width: 480px) {
  .section-pad { padding: 70px 0; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .book-meta { gap: 1.2rem; }
  .footer-bottom { flex-direction: column; text-align: center; }
}