/* ============================================
   METAMORFOSIS — Page Styles
   White/clean aesthetic inspired by navalmanack.com
   ============================================ */

/* ─── Skip Link ─── */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  padding: var(--space-2) var(--space-4);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  z-index: 200;
  transition: top var(--transition-interactive);
  text-decoration: none;
}
.skip-link:focus {
  top: var(--space-4);
}

/* ─── Hero ─── */
.hero {
  padding: clamp(var(--space-12), 8vw, var(--space-24)) var(--space-6);
  padding-bottom: clamp(var(--space-16), 10vw, var(--space-32));
}
.hero-inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(var(--space-8), 5vw, var(--space-16));
  align-items: center;
}

.hero-book {
  display: flex;
  justify-content: center;
}
.book-cover {
  width: clamp(220px, 25vw, 340px);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-book);
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}
.book-cover:hover {
  transform: translateY(-4px);
  box-shadow: 0 28px 60px rgba(0, 0, 0, 0.16), 0 10px 24px rgba(0, 0, 0, 0.08);
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.hero-title {
  font-size: var(--text-3xl);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--color-text);
}
.hero-title .accent {
  color: var(--color-primary);
}
.hero-subtitle {
  font-size: var(--text-lg);
  font-weight: 400;
  color: var(--color-text-muted);
  line-height: 1.4;
  font-style: italic;
}
.hero-author {
  font-size: var(--text-sm);
  font-weight: 600;
  color: #1e2044;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
[data-theme="dark"] .hero-author {
  color: #a0a4c8;
}
.hero-book-heading {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.01em;
  margin-top: var(--space-6);
}
.hero-description {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 48ch;
}

/* ─── Shared section styles ─── */
.section-label {
  font-size: var(--text-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-text-muted);
}
.section-heading {
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-text);
}

/* ─── Download / Email Gate ─── */
.download-section {
  padding: clamp(var(--space-12), 8vw, var(--space-24)) var(--space-6);
}
.download-inner {
  max-width: var(--content-narrow);
  margin: 0 auto;
  text-align: center;
}
.download-heading {
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-8);
  color: var(--color-text);
}
.download-subtext {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
  max-width: 44ch;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}
.download-locked-msg {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  font-style: italic;
}
.download-disclaimer {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-top: var(--space-3);
}

/* Form */
.subscribe-form {
  display: flex;
  gap: var(--space-3);
  max-width: 440px;
  margin: 0 auto;
}
.subscribe-input {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  transition: border-color var(--transition-interactive),
              box-shadow var(--transition-interactive);
}
.subscribe-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-highlight);
}
.subscribe-input::placeholder {
  color: var(--color-text-faint);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition-interactive),
              color var(--transition-interactive),
              box-shadow var(--transition-interactive),
              transform var(--transition-interactive);
  white-space: nowrap;
  text-decoration: none;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border: none;
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  box-shadow: var(--shadow-md);
}
.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.btn-disabled {
  background: var(--color-surface-dynamic);
  color: var(--color-text-faint);
  border: none;
  cursor: not-allowed;
  pointer-events: none;
}
.btn-disabled:hover {
  transform: none;
}

.btn-amazon {
  background: var(--color-text);
  color: #fff;
  border: none;
}
.btn-amazon:hover {
  opacity: 0.9;
  box-shadow: var(--shadow-md);
}

.btn-spotify {
  background: var(--color-surface-dynamic);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-spotify:hover {
  background: var(--color-surface-2);
  box-shadow: var(--shadow-md);
}
.btn-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.error-message {
  display: none;
  color: var(--color-error);
  font-size: var(--text-xs);
  margin-top: var(--space-3);
}

/* Success state */
.success-section {
  display: none;
}
.success-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--space-4);
  background: var(--color-primary-highlight);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}
.success-title {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-2);
  color: var(--color-text);
}
.success-text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.fade-in-up {
  animation: fadeInUp 0.5s cubic-bezier(0.16, 1, 0.3, 1) both;
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ─── Purchase Section ─── */
.purchase-section {
  padding: clamp(var(--space-10), 6vw, var(--space-20)) var(--space-6);
  text-align: center;
}
.purchase-inner {
  max-width: var(--content-narrow);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}
.launch-date {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  letter-spacing: 0.03em;
}
.countdown {
  display: flex;
  gap: var(--space-6);
  justify-content: center;
}
.countdown-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
}
.countdown-num {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  min-width: 2ch;
  text-align: center;
}
.countdown-label {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.notify-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.notify-form {
  display: flex;
  gap: var(--space-3);
  max-width: 440px;
  width: 100%;
}
.notify-form .subscribe-input {
  flex: 1;
}
.notify-success {
  display: none;
  font-size: var(--text-sm);
  color: var(--color-primary);
  font-weight: 500;
}
/* Delivery toggle */
.delivery-toggle {
  display: flex;
  gap: var(--space-3);
  width: 100%;
  max-width: 440px;
}
.delivery-option {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-4) var(--space-3);
  background: var(--color-surface-dynamic);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: border-color var(--transition-interactive),
              background var(--transition-interactive),
              box-shadow var(--transition-interactive);
}
.delivery-option:hover {
  border-color: var(--color-text-muted);
}
.delivery-option.is-active {
  border-color: var(--color-primary);
  background: var(--color-primary-highlight);
  box-shadow: 0 0 0 1px var(--color-primary);
}
.delivery-option-label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
}
.delivery-option.is-active .delivery-option-label {
  color: var(--color-text);
}
.delivery-option-price {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.01em;
}
.delivery-note {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  letter-spacing: 0.02em;
}
.btn-buy {
  flex-shrink: 0;
}

/* Divider */
.purchase-divider {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  width: 100%;
  max-width: 440px;
  color: var(--color-text-faint);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
}
.purchase-divider::before,
.purchase-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

.purchase-buttons {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  justify-content: center;
}
.purchase-note {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

/* ─── About Book Section ─── */
.about-book {
  padding: clamp(var(--space-12), 8vw, var(--space-24)) var(--space-6);
}
.about-book-centered {
  max-width: var(--content-default);
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}
.about-book-body {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ─── Reviews / Social Proof ─── */
.reviews-section {
  padding: 0 var(--space-6) clamp(var(--space-12), 8vw, var(--space-24));
  padding-top: var(--space-2);
}
.reviews-inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-8);
}
.reviews-header {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}
.hero-badge {
  margin-bottom: var(--space-2);
  align-self: flex-start;
}
.bestseller-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: #FFF8E6;
  border: 1px solid #FFE0A0;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  color: #92600A;
  letter-spacing: 0.01em;
}
[data-theme="dark"] .bestseller-badge {
  background: #2a2010;
  border-color: #5a4520;
  color: #FFB84D;
}
.stars-row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.stars {
  display: flex;
  gap: 2px;
}
.stars-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
/* ─── Carousel ─── */
.carousel-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  width: 100%;
}
.carousel-track-container {
  overflow: hidden;
  flex: 1;
  border-radius: var(--radius-lg);
}
.carousel-track {
  display: flex;
  transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.carousel-slide {
  min-width: 100%;
  box-sizing: border-box;
}
.carousel-btn {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}
.carousel-btn:hover {
  background: var(--color-bg-subtle);
  border-color: var(--color-text-faint);
}
.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: var(--space-4);
}
.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: none;
  background: var(--color-border);
  cursor: pointer;
  padding: 0;
  transition: background 0.2s;
}
.carousel-dot.is-active {
  background: var(--color-primary);
}
.review-card {
  padding: var(--space-8) var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--space-4);
  min-height: 180px;
}
.review-text {
  font-size: var(--text-base);
  color: var(--color-text);
  line-height: 1.75;
  font-style: italic;
  max-width: none;
}
.review-text::before { content: "\201C"; }
.review-text::after { content: "\201D"; }
.review-author {
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.02em;
  text-align: right;
}

@media (max-width: 768px) {
  .carousel-btn {
    display: none;
  }
  .carousel-wrapper {
    gap: 0;
  }
  .review-card {
    padding: var(--space-5) var(--space-4);
  }
}

/* ─── Standalone Quote Section ─── */
.quote-section {
  padding: clamp(var(--space-12), 8vw, var(--space-20)) var(--space-6);
  text-align: center;
}
.quote-section-inner {
  max-width: var(--content-default);
  margin: 0 auto;
}
.quote-section .quote-large {
  font-size: var(--text-2xl);
  font-style: italic;
  color: var(--color-text);
  line-height: 1.35;
  font-weight: 400;
  margin-bottom: var(--space-4);
}
.quote-section .quote-large::before { content: "\201C"; }
.quote-section .quote-large::after { content: "\201D"; }
.quote-section .quote-attribution {
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ─── About Author Section ─── */
.about-author {
  padding: clamp(var(--space-12), 8vw, var(--space-24)) var(--space-6);
}
.about-author-inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(var(--space-8), 5vw, var(--space-16));
  align-items: start;
}
.author-photo-wrapper {
  position: sticky;
  top: calc(var(--space-16) + var(--space-8));
}
.author-photo {
  width: 240px;
  height: 240px;
  border-radius: var(--radius-xl);
  object-fit: cover;
  box-shadow: var(--shadow-md);
}
.author-text {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

/* "Sobre el autor" — same color as hero title */
.author-section-title {
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.author-bio {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.75;
}
.author-bio p + p {
  margin-top: var(--space-4);
}

/* ─── Read CTA Section ─── */
.read-cta-section {
  padding: clamp(var(--space-12), 8vw, var(--space-20)) var(--space-6);
  text-align: center;
}
.read-cta-inner {
  max-width: var(--content-narrow);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}
.read-cta-text {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.6;
}
.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
}
.btn-outline {
  background: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
}
.btn-outline:hover {
  border-color: var(--color-text-muted);
  box-shadow: var(--shadow-md);
}
/* Uniform action buttons */
.btn-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  font-family: inherit;
  background: #fff;
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
  box-shadow: 0 2px 8px rgba(0,0,0,0.08), 0 1px 3px rgba(0,0,0,0.06);
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.btn-action:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.14), 0 2px 6px rgba(0,0,0,0.08);
  border-color: var(--color-text-muted);
}
.btn-action:active {
  transform: translateY(0);
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}
[data-theme="dark"] .btn-action {
  background: var(--color-surface-dynamic);
  color: var(--color-text);
}
.btn-action-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
}
.btn-action--local .btn-action-icon { color: #1e2044; }
[data-theme="dark"] .btn-action--local .btn-action-icon { color: #a0a4c8; }
.btn-action--amazon .btn-action-icon { color: #ff9900; }
.btn-action--spotify .btn-action-icon { color: #1db954; }
.btn-action--read .btn-action-icon { color: #1e2044; }
[data-theme="dark"] .btn-action--read .btn-action-icon { color: #a0a4c8; }

/* Purchase actions */
.purchase-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: center;
}

/* ─── Buy Options Modal ─── */
.buy-panel {
  max-width: 420px;
}
.buy-modal-title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-6);
  text-align: center;
}
.buy-options {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.buy-option {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4);
  background: var(--color-surface-dynamic);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: border-color var(--transition-interactive),
              box-shadow var(--transition-interactive),
              background var(--transition-interactive);
  text-decoration: none;
  color: inherit;
  width: 100%;
  text-align: left;
  font-family: inherit;
  font-size: inherit;
}
.buy-option:hover {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary);
}
.buy-option-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--color-primary-highlight);
  color: var(--color-primary);
}
.buy-option-icon svg {
  width: 20px;
  height: 20px;
}
.buy-option-text {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.buy-option-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}
.buy-option-price {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}
.buy-option-meta {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
.buy-option-arrow {
  flex-shrink: 0;
  color: var(--color-text-faint);
  transition: transform var(--transition-interactive);
}
.buy-option:hover .buy-option-arrow {
  transform: translateX(2px);
  color: var(--color-primary);
}
.buy-options-note {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-align: center;
  padding: var(--space-1) 0;
}
.buy-divider {
  height: 1px;
  background: var(--color-border);
  margin: var(--space-2) 0;
}

/* ─── Social Links ─── */
.social-section {
  padding: var(--space-6) var(--space-6) var(--space-8);
  text-align: center;
}
.social-inner {
  max-width: var(--content-narrow);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
}
.social-links {
  display: flex;
  gap: var(--space-4);
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
}
.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  transition: color var(--transition-interactive),
              background var(--transition-interactive);
  text-decoration: none;
}
.social-link:hover {
  color: var(--color-text);
  background: var(--color-surface-2);
}
.social-link svg {
  width: 20px;
  height: 20px;
}

/* ─── Footer ─── */
.footer {
  padding: var(--space-4) var(--space-6) var(--space-8);
  text-align: center;
}
.footer-content {
  max-width: var(--content-default);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.footer-text {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
.footer-text a {
  color: var(--color-text-muted);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--transition-interactive);
}
.footer-text a:hover {
  color: var(--color-primary);
}

/* ─── Scroll Reveal ─── */
.reveal {
  opacity: 1;
}
@supports (animation-timeline: scroll()) {
  .reveal {
    opacity: 0;
    animation: revealFade linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 80%;
  }
}
@keyframes revealFade {
  to { opacity: 1; }
}
.reveal.js-reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.js-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── Responsive ─── */
@media (max-width: 768px) {
  .hero {
    padding: var(--space-10) var(--space-4);
    padding-bottom: var(--space-12);
  }
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-8);
  }
  .hero-book {
    order: -1;
  }
  .book-cover {
    width: clamp(180px, 45vw, 260px);
  }
  .book-cover:hover {
    transform: none;
  }
  .hero-content {
    align-items: center;
  }
  .hero-badge {
    align-self: center;
  }
  .hero-description {
    text-align: center;
  }
  .purchase-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
    width: 100%;
    max-width: 360px;
  }
  .btn-action {
    width: 100%;
  }

  .buy-card {
    flex-direction: column;
    text-align: center;
    gap: var(--space-4);
  }
  .buy-card-details {
    text-align: center;
  }

  .subscribe-form {
    flex-direction: column;
  }
  .subscribe-input {
    width: 100%;
  }

  .about-author-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .author-photo-wrapper {
    position: static;
    display: flex;
    justify-content: center;
  }
  .author-photo {
    width: 200px;
    height: 200px;
  }
  .author-text {
    align-items: center;
  }
  .author-bio {
    text-align: left;
  }
}

@media (max-width: 480px) {
  .book-cover {
    width: clamp(160px, 50vw, 220px);
  }
  .author-photo {
    width: 160px;
    height: 160px;
  }
}

/* ─── Order Modal ─── */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}
.modal-overlay.is-open {
  opacity: 1;
  visibility: visible;
}
.modal-panel {
  background: var(--color-bg);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 440px;
  max-height: 90dvh;
  overflow-y: auto;
  padding: var(--space-8);
  position: relative;
  transform: translateY(12px);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.modal-overlay.is-open .modal-panel {
  transform: translateY(0);
}
.modal-close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  transition: background var(--transition-interactive), color var(--transition-interactive);
}
.modal-close:hover {
  background: var(--color-surface-2);
  color: var(--color-text);
}
.modal-title {
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}
.modal-subtitle {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}
.modal-subtitle strong {
  color: var(--color-text);
}

/* Order form */
.order-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.form-label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
}
.form-input {
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--color-text);
  transition: border-color var(--transition-interactive),
              box-shadow var(--transition-interactive);
}
.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-highlight);
}
.form-input::placeholder {
  color: var(--color-text-faint);
}
.form-input.is-error {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px var(--color-error-highlight);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}
.delivery-fields {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.form-error {
  display: none;
  font-size: var(--text-xs);
  color: var(--color-error);
}
.form-error.is-visible {
  display: block;
}
.btn-submit {
  width: 100%;
  padding: var(--space-3) var(--space-6);
}
.btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
}
.form-disclaimer {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-align: center;
  line-height: 1.5;
}

/* Success step */
.success-check {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-4);
}
.success-message {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
  text-align: center;
  margin-bottom: var(--space-6);
}
#modal-step-success {
  text-align: center;
}
#modal-step-success .modal-title {
  margin-bottom: var(--space-2);
}
#modal-step-success .btn {
  width: 100%;
}

/* Modal mobile */
@media (max-width: 480px) {
  .modal-panel {
    padding: var(--space-6);
    max-width: 100%;
    border-radius: var(--radius-lg);
  }
  .form-row {
    grid-template-columns: 1fr;
  }
}