/* ==========================================================================
   Pravda Books — Premium Bookstore Frontend
   Phase 1: Static HTML/CSS/JS
   ========================================================================== */

/* --- Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,500;0,600;0,700;1,500&family=Inter:wght@400;500;600;700&family=Noto+Sans+Malayalam:wght@400;500;600;700&display=swap');

/* --- Variables --- */
:root {
  --color-primary: #C41E3A;
  --color-primary-dark: #9E1830;
  --color-primary-light: #E8354F;
  --color-black: #1A1A1A;
  --color-black-soft: #2D2D2D;
  --color-white: #FFFFFF;
  --color-gray-50: #FAFAFA;
  --color-gray-100: #F5F5F5;
  --color-gray-200: #E8E8E8;
  --color-gray-300: #D4D4D4;
  --color-gray-400: #A3A3A3;
  --color-gray-500: #737373;
  --color-gray-600: #525252;
  --color-success: #16A34A;
  --color-warning: #D97706;

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-malayalam: 'Noto Sans Malayalam', 'Inter', sans-serif;

  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.09);
  --shadow-hover: 0 20px 48px rgba(196, 30, 58, 0.12);

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --radius-xl: 32px;

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --header-height: 64px;
  --header-height-scrolled: 56px;
  --container-max: 1280px;
  --section-gap: 3rem;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-black);
  background: var(--color-gray-50);
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
button, input, select, textarea { font: inherit; border: none; outline: none; }
button { cursor: pointer; background: none; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { font-family: var(--font-display); font-weight: 600; line-height: 1.25; }
.ml-text { font-family: var(--font-malayalam); }

/* --- Utilities --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.25rem;
}
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); border: 0;
}
.section {
  padding: var(--section-gap) 0;
  position: relative;
}
.section--gray {
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(196, 30, 58, 0.04), transparent 70%),
    var(--color-gray-50);
}
.section--soft {
  background:
    linear-gradient(180deg, var(--color-white) 0%, var(--color-gray-50) 100%);
}
.section--dark { background: var(--color-black); color: var(--color-white); }
.section__header {
  text-align: center;
  margin-bottom: 2.5rem;
}
.section__header--compact { margin-bottom: 1.75rem; }
.section__eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}
.section__title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: 0.5rem;
}
.section__title::after {
  content: '';
  display: block;
  width: 48px;
  height: 2px;
  margin: 0.875rem auto 0;
  background: linear-gradient(90deg, var(--color-primary), rgba(196, 30, 58, 0.3));
  border-radius: 2px;
}
.section__header--compact .section__title::after { margin-top: 0.625rem; }
.section__subtitle {
  color: var(--color-gray-500);
  font-size: 1rem;
  max-width: 560px;
  margin: 0 auto;
}
.section--dark .section__subtitle { color: var(--color-gray-400); }
.section:not(.section--gray):not(.section--soft):not(.section--dark) {
  background: var(--color-white);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition);
  white-space: nowrap;
}
.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
}
.btn--primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-hover);
}
.btn--secondary {
  background: var(--color-black);
  color: var(--color-white);
}
.btn--secondary:hover {
  background: var(--color-black-soft);
  transform: translateY(-1px);
}
.btn--outline {
  background: transparent;
  color: var(--color-black);
  border: 2px solid var(--color-black);
}
.btn--outline:hover {
  background: var(--color-black);
  color: var(--color-white);
}
.btn--outline-white {
  background: transparent;
  color: var(--color-white);
  border: 2px solid var(--color-white);
}
.btn--outline-white:hover {
  background: var(--color-white);
  color: var(--color-black);
}
.btn--ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  color: var(--color-black);
  background: transparent;
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}
.btn--ghost:hover {
  border-color: var(--color-black);
  background: var(--color-gray-100);
}
.btn--sm { padding: 0.5rem 1rem; font-size: 0.875rem; }
.btn--lg { padding: 1rem 2rem; font-size: 1rem; }
.btn--block { width: 100%; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* Content-width buttons by default (full width only with .btn--block or inside intentional form layouts) */
a.btn:not(.btn--block),
button.btn:not(.btn--block) {
  width: auto;
  max-width: 100%;
}

/* --- Badges --- */
.badge {
  display: inline-block;
  padding: 0.25rem 0.625rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-radius: var(--radius-sm);
  background: var(--color-gray-100);
  color: var(--color-gray-600);
}
.badge--primary { background: var(--color-primary); color: var(--color-white); }
.badge--early { background: var(--color-warning); color: var(--color-white); }
.badge--category { background: rgba(196, 30, 58, 0.1); color: var(--color-primary); }
.badge--savings { background: rgba(196, 30, 58, 0.12); color: var(--color-primary); }

/* --- Header --- */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
  transition:
    background 0.35s cubic-bezier(0.4, 0, 0.2, 1),
    box-shadow 0.35s cubic-bezier(0.4, 0, 0.2, 1),
    border-color 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.header--scrolled {
  background: var(--color-white);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-bottom-color: transparent;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.07);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: 1.25rem;
  transition: height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
@media (min-width: 1024px) {
  .header__inner {
    gap: 2rem;
  }
}
.header__logo img {
  height: 36px;
  width: auto;
  transition: height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.header--scrolled .header__logo img {
  height: 30px;
}
.header--scrolled .header__icon-btn {
  width: 40px;
  height: 40px;
}
.header--scrolled .header__icon-btn svg {
  width: 20px;
  height: 20px;
}
.header--scrolled .header__menu-toggle {
  width: 40px;
  height: 40px;
}
.header--scrolled .header__menu-toggle svg {
  width: 22px;
  height: 22px;
}
.header--scrolled .nav__link {
  padding-top: 0.4rem;
  padding-bottom: 0.4rem;
  font-size: 0.9rem;
}
body.is-header-scrolled {
  --header-height: var(--header-height-scrolled);
}
.header__actions {
  display: flex;
  align-items: center;
  gap: 0.125rem;
}
@media (min-width: 768px) {
  .header__actions { gap: 0.375rem; }
}
.header__icon-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  color: var(--color-black);
  transition: background var(--transition), color var(--transition), width 0.35s ease, height 0.35s ease;
}
.header__icon-btn:hover { background: var(--color-gray-100); color: var(--color-primary); }
.header__icon-btn svg {
  width: 22px;
  height: 22px;
  transition: width 0.35s ease, height 0.35s ease;
}
.header__cart-count {
  position: absolute;
  top: 4px;
  right: 4px;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  font-size: 0.6875rem;
  font-weight: 700;
  line-height: 18px;
  text-align: center;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: 9px;
}
.header__menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  transition: width 0.35s ease, height 0.35s ease;
}
.header__menu-toggle svg {
  width: 24px;
  height: 24px;
  transition: width 0.35s ease, height 0.35s ease;
}

/* --- Navigation --- */
.nav { display: none; }
.nav__list { display: flex; align-items: center; gap: 0.125rem; }
@media (min-width: 1024px) {
  .nav__list { gap: 0.25rem; }
}
.nav__link {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.5rem 0.875rem;
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  border-radius: var(--radius-sm);
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.nav__link:hover {
  color: var(--color-primary);
  background: rgba(196, 30, 58, 0.05);
}
.nav__link--active {
  color: var(--color-black);
  background: transparent;
  position: relative;
}
.nav__link--active::after {
  content: '';
  position: absolute;
  left: 0.875rem;
  right: 0.875rem;
  bottom: 0.25rem;
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
}
.nav__link svg { width: 14px; height: 14px; transition: transform var(--transition); }
.nav__item--has-dropdown:hover .nav__link svg { transform: rotate(180deg); }
.nav__dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 200px;
  padding: 0.5rem;
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--transition);
}
.nav__item--has-dropdown { position: relative; }
.nav__item--has-dropdown:hover .nav__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.nav__dropdown-link {
  display: block;
  padding: 0.625rem 1rem;
  font-size: 0.875rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.nav__dropdown-link:hover {
  background: var(--color-gray-100);
  color: var(--color-primary);
}

/* Mobile Nav */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 2000;
  visibility: hidden;
  pointer-events: none;
}
.mobile-nav--open { visibility: visible; pointer-events: auto; }
.mobile-nav__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  transition: opacity var(--transition);
}
.mobile-nav--open .mobile-nav__overlay { opacity: 1; }
.mobile-nav__panel {
  position: absolute;
  top: 0;
  right: 0;
  width: min(320px, 85vw);
  height: 100%;
  background: var(--color-white);
  transform: translateX(100%);
  transition: transform var(--transition);
  overflow-y: auto;
  padding: 1.5rem;
}
.mobile-nav--open .mobile-nav__panel { transform: translateX(0); }
.mobile-nav__close {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  margin-bottom: 1.5rem;
}
.mobile-nav__close svg { width: 24px; height: 24px; }
.mobile-nav__link {
  display: block;
  padding: 0.875rem 0;
  font-size: 1.0625rem;
  font-weight: 500;
  border-bottom: 1px solid var(--color-gray-200);
}
.mobile-nav__link:hover { color: var(--color-primary); }
.mobile-nav__sub { padding-left: 1rem; }
.mobile-nav__sub .mobile-nav__link {
  font-size: 0.9375rem;
  font-weight: 400;
  color: var(--color-gray-600);
}

/* --- Hero Carousel --- */
.hero {
  position: relative;
  overflow: hidden;
  background: var(--color-black);
  height: clamp(430px, 92vw, 500px);
}
.hero__slider {
  position: relative;
  width: 100%;
  height: 100%;
}
.hero__slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.75s ease, visibility 0.75s ease;
  z-index: 0;
}
.hero__slide--active {
  opacity: 1;
  visibility: visible;
  z-index: 1;
}
.hero__slide--active .hero__content-inner {
  animation: heroContentIn 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}
.hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1);
  transition: transform 7s ease;
}
.hero__slide--active .hero__bg {
  transform: scale(1.06);
}
.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    rgba(0, 0, 0, 0.88) 0%,
    rgba(0, 0, 0, 0.62) 42%,
    rgba(0, 0, 0, 0.35) 68%,
    rgba(0, 0, 0, 0.2) 100%
  );
}
.hero__content {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  align-items: center;
  padding: 2.5rem 0 5.5rem;
}
.hero__content-inner {
  max-width: 640px;
  opacity: 0;
  transform: translateY(16px);
}
.hero__eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 1rem;
  padding-left: 0.75rem;
  border-left: 3px solid var(--color-primary);
}
.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5.5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
  color: var(--color-white);
}
.hero__text {
  font-size: clamp(0.9375rem, 2vw, 1.125rem);
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.88);
  max-width: 520px;
  margin-bottom: 1.75rem;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.5rem;
}
.hero .btn {
  width: auto;
  display: inline-flex;
  align-self: auto;
  max-width: 100%;
  flex-shrink: 0;
}
.hero__link-secondary {
  font-size: 0.9375rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.92);
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: color var(--transition);
  white-space: nowrap;
}
.hero__link-secondary:hover {
  color: var(--color-white);
}
.hero__bottom {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 5;
  padding-bottom: 1.25rem;
  pointer-events: none;
}
.hero__bottom-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  pointer-events: auto;
}
.hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.hero__chip {
  padding: 0.45rem 0.9rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.95);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.hero__nav {
  display: flex;
  gap: 0.5rem;
}
.hero__dot {
  width: 8px;
  height: 8px;
  padding: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.35);
  transition: all var(--transition);
  cursor: pointer;
}
.hero__dot--active {
  background: var(--color-primary);
  width: 26px;
  border-radius: 4px;
}
.hero__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 6;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: 50%;
  color: var(--color-white);
  transition: all var(--transition);
  cursor: pointer;
}
.hero__arrow:hover {
  background: rgba(255, 255, 255, 0.22);
  border-color: rgba(255, 255, 255, 0.4);
}
.hero__arrow--prev { left: 1rem; }
.hero__arrow--next { right: 1rem; }
.hero__arrow svg { width: 20px; height: 20px; }

@keyframes heroContentIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (min-width: 768px) {
  .hero {
    height: clamp(520px, 52vw, 620px);
  }
  .hero__content {
    padding: 3rem 0 6rem;
  }
  .hero__arrow {
    width: 48px;
    height: 48px;
  }
  .hero__arrow--prev { left: 1.5rem; }
  .hero__arrow--next { right: 1.5rem; }
}

@media (max-width: 639px) {
  .hero__bottom-inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .hero__chips {
    order: 2;
  }
  .hero__nav {
    order: 1;
    align-self: flex-end;
  }
  .hero__actions {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.875rem;
  }
}

/* --- Search Section --- */
.search-section {
  padding: 3rem 0;
  background:
    radial-gradient(ellipse 70% 60% at 50% 0%, rgba(196, 30, 58, 0.05), transparent 65%),
    linear-gradient(180deg, var(--color-white) 0%, var(--color-gray-50) 100%);
}
.search-section__title {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  margin-bottom: 0.35rem;
}
.search-section__desc {
  color: var(--color-gray-500);
  font-size: 0.9375rem;
}
.search-form--single {
  position: relative;
  max-width: 760px;
  margin: 0 auto;
}
.search-form__bar {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 0.5rem 1.25rem;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  background: var(--color-white);
  box-shadow: var(--shadow-md);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.search-form__bar:focus-within {
  border-color: rgba(196, 30, 58, 0.35);
  box-shadow: 0 12px 40px rgba(196, 30, 58, 0.1);
  transform: translateY(-1px);
}
.search-form__icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  color: var(--color-primary);
  opacity: 0.85;
}
.search-form__input {
  width: 100%;
  padding: 1rem 0.25rem;
  border: none;
  background: transparent;
  font-size: 1.0625rem;
}
.search-form__input--single:focus {
  outline: none;
  box-shadow: none;
}
.search-form__input::placeholder {
  color: var(--color-gray-400);
}

/* Search dropdown */
.search-dropdown {
  position: absolute;
  top: calc(100% + 0.625rem);
  left: 0;
  right: 0;
  z-index: 1050;
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity 0.22s ease, transform 0.22s ease;
  pointer-events: none;
}
.search-dropdown--open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.search-dropdown__list { padding: 0.375rem 0; }
.search-dropdown__item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1.125rem;
  transition: background var(--transition);
}
.search-dropdown__item:hover,
.search-dropdown__item:focus-visible {
  background: var(--color-gray-50);
  outline: none;
}
.search-dropdown__thumb {
  flex-shrink: 0;
  width: 48px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.search-dropdown__thumb img {
  width: 48px;
  height: 72px;
  object-fit: cover;
}
.search-dropdown__info {
  flex: 1;
  min-width: 0;
}
.search-dropdown__title {
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.35;
  margin-bottom: 0.25rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.search-dropdown__meta {
  font-size: 0.8125rem;
  color: var(--color-gray-500);
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 0.5rem;
}
.search-dropdown__category {
  color: var(--color-primary);
  font-weight: 600;
}
.search-dropdown__price {
  flex-shrink: 0;
  font-weight: 700;
  font-size: 0.9375rem;
  color: var(--color-primary);
}
.search-dropdown__view-all {
  display: block;
  padding: 0.875rem 1.125rem;
  text-align: center;
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--color-primary);
  border-top: 1px solid var(--color-gray-200);
  background: var(--color-gray-50);
  transition: background var(--transition), color var(--transition);
}
.search-dropdown__view-all:hover {
  background: rgba(196, 30, 58, 0.06);
  color: var(--color-primary-dark);
}
.search-dropdown__empty {
  padding: 1.75rem 1.25rem;
  text-align: center;
}
.search-dropdown__empty-title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.375rem;
}
.search-dropdown__empty-text {
  font-size: 0.875rem;
  color: var(--color-gray-500);
}

/* Search results page */
.search-results-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.75rem;
  padding: 1rem 1.25rem;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.search-results-toolbar__count {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-gray-600);
}
.search-results-toolbar__controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.search-results-toolbar__select {
  padding: 0.625rem 2rem 0.625rem 0.875rem;
  font-size: 0.875rem;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  background: var(--color-gray-50);
  color: var(--color-gray-500);
  cursor: not-allowed;
}
.search-results-empty {
  text-align: center;
  padding: 3rem 1.5rem;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: 2rem;
}
.search-results-empty__title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}
.search-results-empty__text {
  color: var(--color-gray-500);
  margin-bottom: 1.25rem;
}

/* --- Category Cards --- */
.category-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(2, 1fr);
}
.category-card {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 4/3;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}
.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.category-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.category-card:hover img { transform: scale(1.05); }
.category-card__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-end;
  padding: 1.25rem;
  background: linear-gradient(transparent 40%, rgba(0,0,0,0.75));
  color: var(--color-white);
}
.category-card__name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
}
.category-card__count {
  margin-top: 0.35rem;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.85);
}

/* --- CTA Banner --- */
.cta-banner {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
}
.cta-card {
  position: relative;
  min-height: 320px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  color: var(--color-white);
  background-image: var(--cta-image);
  background-size: cover;
  background-position: center;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition), box-shadow var(--transition);
}
.cta-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.cta-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26, 26, 26, 0.82) 0%, rgba(26, 26, 26, 0.45) 55%, rgba(196, 30, 58, 0.35) 100%);
}
.cta-card--book .cta-card__overlay {
  background: linear-gradient(135deg, rgba(196, 30, 58, 0.88) 0%, rgba(26, 26, 26, 0.55) 60%, rgba(26, 26, 26, 0.4) 100%);
}
.cta-card--thesis .cta-card__overlay {
  background: linear-gradient(135deg, rgba(26, 26, 26, 0.9) 0%, rgba(26, 26, 26, 0.5) 55%, rgba(196, 30, 58, 0.25) 100%);
}
.cta-card__content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  height: 100%;
  padding: 2.5rem 2rem;
}
.cta-card__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(6px);
  box-shadow: var(--shadow-sm);
  margin-bottom: 1.25rem;
}
.cta-card__icon svg {
  width: 26px;
  height: 26px;
}
.cta-card__title {
  font-size: clamp(1.35rem, 3vw, 1.875rem);
  margin-bottom: 0.5rem;
}
.cta-card__text {
  opacity: 0.92;
  margin-bottom: 1.5rem;
  max-width: 420px;
  line-height: 1.65;
}
.cta-card .btn { margin-top: auto; }

/* --- Gallery Carousel (Home) --- */
.gallery-carousel {
  position: relative;
  max-width: 100%;
}
.gallery-carousel__controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.gallery-carousel__viewport {
  flex: 1;
  overflow: hidden;
  min-width: 0;
}
.gallery-carousel__track {
  display: flex;
  gap: 1.25rem;
  transition: transform 0.55s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}
.gallery-carousel__card {
  flex: 0 0 100%;
  min-width: 0;
  background: var(--color-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition), box-shadow var(--transition);
}
.gallery-carousel__card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.gallery-carousel__image {
  position: relative;
  height: 220px;
  overflow: hidden;
  background: var(--color-gray-100);
}
.gallery-carousel__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.gallery-carousel__card:hover .gallery-carousel__image img {
  transform: scale(1.04);
}
.gallery-carousel__label {
  position: absolute;
  top: 0.875rem;
  left: 0.875rem;
  padding: 0.35rem 0.75rem;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: var(--color-white);
  color: var(--color-primary);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
}
.gallery-carousel__body {
  padding: 1.125rem 1.25rem 1.25rem;
}
.gallery-carousel__title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.375rem;
  color: var(--color-black);
}
.gallery-carousel__caption {
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--color-gray-600);
}
.gallery-carousel__arrow {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: 50%;
  color: var(--color-black);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}
.gallery-carousel__arrow:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  box-shadow: var(--shadow-md);
}
.gallery-carousel__dots {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
}
.gallery-carousel__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-gray-300);
  transition: all var(--transition);
  padding: 0;
}
.gallery-carousel__dot--active {
  background: var(--color-primary);
  width: 24px;
  border-radius: 4px;
}
.gallery-carousel__cta {
  text-align: center;
  margin-top: 1.75rem;
}

@media (min-width: 640px) {
  .gallery-carousel__image { height: 240px; }
  .gallery-carousel__card {
    flex: 0 0 calc(50% - 0.625rem);
  }
}

@media (min-width: 1024px) {
  .gallery-carousel__image { height: 260px; }
  .gallery-carousel__arrow { width: 48px; height: 48px; }
  .gallery-carousel__card {
    flex: 0 0 calc(33.333% - 0.834rem);
  }
}

@media (max-width: 639px) {
  .gallery-carousel__controls { gap: 0.5rem; }
  .gallery-carousel__arrow {
    width: 38px;
    height: 38px;
  }
  .gallery-carousel__track { gap: 1rem; }
  .gallery-carousel__card { flex: 0 0 100%; }
}

/* --- Book Cards --- */
.book-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(2, 1fr);
}
.book-card {
  position: relative;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}
.book-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-6px);
}
.book-card__image-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 2/3;
  background: var(--color-gray-100);
}
.book-card__image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.book-card:hover .book-card__image-wrap img { transform: scale(1.04); }
.book-card__badge {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
}
.book-card__wishlist {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 50%;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition), color var(--transition), background var(--transition);
  opacity: 1;
}
.book-card__wishlist:hover {
  transform: scale(1.08);
  background: var(--color-white);
}
.book-card:hover .book-card__wishlist,
.book-card__wishlist--active { opacity: 1; }
.book-card__wishlist:hover { color: var(--color-primary); }
.book-card__wishlist--active { color: var(--color-primary); opacity: 1; }
.book-card__wishlist svg { width: 18px; height: 18px; }
.book-card__body { padding: 1.125rem; }
.book-card__title {
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.4;
}
.book-card__title .ml-text { font-size: 0.875rem; }
.title-sep { color: var(--color-gray-400); margin: 0 0.25rem; font-weight: 400; }
.book-card__author {
  font-size: 0.8125rem;
  color: var(--color-gray-500);
  margin-bottom: 0.25rem;
}

.book-card__publisher {
  font-size: 0.75rem;
  color: var(--color-gray-400);
  margin-bottom: 0.75rem;
}
.book-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}
.book-card__price-area {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.15rem;
}
.book-card__pricing-savings {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.book-card__original-price {
  color: var(--color-gray-500);
  text-decoration: line-through;
  font-size: 0.875rem;
  font-weight: 600;
}
.book-card__price {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-primary);
}
.book-card__add {
  padding: 0.5rem 1rem;
  font-size: 0.8125rem;
  font-weight: 600;
  background: var(--color-black);
  color: var(--color-white);
  border-radius: var(--radius-md);
  white-space: nowrap;
  transition: background var(--transition), transform var(--transition);
}
.book-card__add:hover {
  background: var(--color-primary);
  transform: translateY(-1px);
}

/* Store book cards (homepage + search) */
.book-grid--store {
  align-items: stretch;
}
.book-card.book-card--store {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--color-white);
  border: 1px solid rgba(0, 0, 0, 0.07);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(26, 26, 26, 0.06);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.book-card.book-card--store:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}
.book-card--store .book-card__cover {
  position: relative;
  flex: 1 1 68%;
  min-height: 0;
  padding: 0.875rem 0.875rem 0;
  display: flex;
  flex-direction: column;
}
.book-card--store .book-card__image-wrap {
  display: block;
  flex: 1;
  min-height: 220px;
  aspect-ratio: 2 / 3;
  overflow: hidden;
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, var(--color-gray-100) 0%, var(--color-gray-50) 100%);
  box-shadow: 0 10px 28px rgba(26, 26, 26, 0.12);
}
@media (min-width: 900px) {
  .book-card--store .book-card__image-wrap {
    min-height: 260px;
  }
}
.book-card--store .book-card__image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.55s ease;
}
.book-card--store:hover .book-card__image-wrap img {
  transform: scale(1.05);
}
.book-card--store .book-card__wishlist {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  z-index: 2;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.96);
  border-radius: 50%;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.12);
  color: var(--color-gray-500);
  opacity: 1;
  transition: color var(--transition), transform var(--transition), background var(--transition);
}
.book-card--store .book-card__wishlist:hover {
  color: var(--color-primary);
  transform: scale(1.08);
  background: var(--color-white);
}
.book-card--store .book-card__wishlist--active {
  color: var(--color-primary);
}
.book-card--store .book-card__wishlist svg {
  width: 15px;
  height: 15px;
}
.book-card--store .book-card__body {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  min-height: 0;
  padding: 1.125rem 1.125rem 1.375rem;
  gap: 0.5rem;
}
.book-card--store .book-card__author {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-primary);
  margin: 0;
  line-height: 1.3;
  order: 1;
  letter-spacing: 0.02em;
}
.book-card--store .book-card__title {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: 0.04em;
  margin: 0;
  order: 2;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.book-card--store .book-card__title a {
  color: var(--color-black);
  transition: color var(--transition);
}
.book-card--store .book-card__title a:hover {
  color: var(--color-primary);
}
.book-card--store .book-card__title-en {
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.book-card--store .book-card__title-ml {
  font-weight: 600;
  font-family: var(--font-malayalam);
  word-break: break-word;
  overflow-wrap: anywhere;
  line-height: 1.45;
}
.book-card--store .book-card__title .title-sep {
  color: var(--color-gray-400);
  font-weight: 400;
  margin: 0 0.25rem;
}
.book-card--store .book-card__category-pill {
  display: inline-block;
  align-self: flex-start;
  order: 3;
  padding: 0.25rem 0.625rem;
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-gray-500);
  background: var(--color-gray-50);
  border: none;
  border-radius: 999px;
  margin-top: 0.125rem;
}
.book-card--store .book-card__pricing {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.625rem;
  order: 4;
  margin-top: 0.75rem;
  padding: 0.75rem 0 0.375rem;
  border-top: 1px solid var(--color-gray-100);
}
.book-card--store .book-card__original-price {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-gray-400);
  text-decoration: line-through;
  order: 1;
}
.book-card--store .book-card__price {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-primary);
  order: 2;
}
.book-card--store .book-card__discount-badge {
  order: 3;
  padding: 0.15rem 0.45rem;
  font-size: 0.625rem;
  font-weight: 700;
  color: var(--color-white);
  background: var(--color-primary);
  border-radius: var(--radius-sm);
}
.book-card--store .book-card__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  order: 5;
  min-height: 1.25rem;
  margin-top: 0.125rem;
}
.book-card--store .book-card__badge {
  padding: 0.25rem 0.55rem;
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
}
.book-card--store .book-card__badge--pre-book {
  color: #B45309;
  background: rgba(217, 119, 6, 0.1);
  border-color: rgba(217, 119, 6, 0.2);
}
.book-card--store .book-card__badge--on-sale {
  color: var(--color-primary);
  background: rgba(196, 30, 58, 0.08);
  border-color: rgba(196, 30, 58, 0.18);
}
.book-card--store .book-card__badge--best-seller {
  color: var(--color-black);
  background: var(--color-gray-100);
  border-color: var(--color-gray-200);
}
.book-card--store .book-card__cover .book-card__badges {
  position: absolute;
  bottom: 0.625rem;
  left: 0.875rem;
  right: 3rem;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}
.book-card--store .book-card__badge--out-of-stock {
  color: #991B1B;
  background: rgba(220, 38, 38, 0.1);
  border-color: rgba(220, 38, 38, 0.2);
}
.book-card--store .book-card__low-stock {
  order: 5;
  margin: 0;
  font-size: 0.6875rem;
  font-weight: 600;
  color: #B45309;
  letter-spacing: 0.02em;
}
.book-card--store .book-card__add.btn--disabled,
.book-card--store .book-card__add:disabled {
  opacity: 0.72;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}
.book-card--store .book-card__add.btn--block {
  order: 6;
  width: 100%;
  margin-top: auto;
  padding: 0.8125rem 1rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: var(--radius-md);
  background: var(--color-primary);
  color: var(--color-white);
  transition: background var(--transition), transform var(--transition);
}
.book-card--store .book-card__add.btn--block:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
}

/* WhatsApp floating button */
.whatsapp-float {
  position: fixed;
  z-index: 1050;
  right: max(1rem, env(safe-area-inset-right));
  bottom: max(1.25rem, env(safe-area-inset-bottom));
  width: 54px;
  height: 54px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #25D366;
  color: var(--color-white);
  border-radius: 50%;
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.4);
  transition: transform var(--transition), box-shadow var(--transition);
}
.whatsapp-float:hover {
  transform: scale(1.06);
  box-shadow: 0 8px 28px rgba(37, 211, 102, 0.5);
}
.whatsapp-float svg {
  width: 26px;
  height: 26px;
}
.whatsapp-float__badge {
  position: absolute;
  top: -2px;
  right: -2px;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  font-size: 0.625rem;
  font-weight: 700;
  line-height: 18px;
  text-align: center;
  color: var(--color-white);
  background: var(--color-primary);
  border: 2px solid var(--color-white);
  border-radius: 9px;
  pointer-events: none;
}
body.has-whatsapp-float {
  padding-bottom: calc(5.5rem + env(safe-area-inset-bottom));
}
body.has-whatsapp-float.has-bottom-bar {
  padding-bottom: calc(7.5rem + env(safe-area-inset-bottom));
}
body.has-whatsapp-float.has-bottom-bar .whatsapp-float {
  bottom: calc(6.25rem + env(safe-area-inset-bottom));
}
@media (min-width: 768px) {
  .whatsapp-float {
    right: max(1.5rem, env(safe-area-inset-right));
    bottom: max(1.5rem, env(safe-area-inset-bottom));
    width: 58px;
    height: 58px;
  }
  .whatsapp-float svg {
    width: 28px;
    height: 28px;
  }
  body.has-whatsapp-float,
  body.has-whatsapp-float.has-bottom-bar {
    padding-bottom: 0;
  }
  body.has-whatsapp-float.has-bottom-bar .whatsapp-float {
    bottom: max(1.5rem, env(safe-area-inset-bottom));
  }
}

.book-detail__price-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 0.75rem;
  margin-bottom: 1rem;
}
.book-detail__price-original {
  font-size: 1.125rem;
  color: var(--color-gray-400);
  text-decoration: line-through;
}

/* Search results layout */
.search-results-layout {
  display: grid;
  gap: 2rem;
}
@media (min-width: 900px) {
  .search-results-layout {
    grid-template-columns: 240px 1fr;
    align-items: start;
  }
}
.search-results-sidebar {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-gray-200);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
}
@media (min-width: 900px) {
  .search-results-sidebar {
    position: sticky;
    top: calc(var(--header-height) + 1rem);
  }
}
.search-results-sidebar__title {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gray-500);
  margin-bottom: 1rem;
}
.search-results-filter {
  margin-bottom: 1.25rem;
}
.search-results-filter:last-child {
  margin-bottom: 0;
}
.search-results-filter__label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-black-soft);
  margin-bottom: 0.5rem;
}
.search-results-filter__select {
  width: 100%;
  padding: 0.625rem 2rem 0.625rem 0.75rem;
  font-size: 0.875rem;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  background: var(--color-gray-50);
  color: var(--color-black);
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23525252' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
}
.search-results-main__toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}
.search-results-main__count {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-gray-600);
}

/* --- Featured Collection --- */
.featured-collection {
  display: grid;
  gap: 2rem;
  align-items: center;
}
.featured-collection__image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.featured-collection__image img {
  width: 100%;
  height: clamp(280px, 50vw, 420px);
  object-fit: cover;
}
.featured-collection__content h2 {
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  margin-bottom: 1rem;
}
.featured-collection__content p {
  color: var(--color-gray-600);
  margin-bottom: 1.5rem;
}

/* --- Editorial Note --- */
.editorial-note {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
  padding: 3rem 2rem;
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-gray-200);
}
.editorial-note__quote {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-style: italic;
  line-height: 1.5;
  margin-bottom: 1rem;
  color: var(--color-black-soft);
}
.editorial-note__sign {
  font-size: 0.9375rem;
  color: var(--color-gray-500);
}

/* --- Footer --- */
.footer {
  background: linear-gradient(180deg, #1f1f1f 0%, var(--color-black) 100%);
  color: var(--color-white);
  padding: 3.5rem 0 1.5rem;
}
.footer--premium {
  padding-top: 4rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.footer__grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: 1fr;
  margin-bottom: 2.5rem;
}
.footer__brand img { height: 32px; margin-bottom: 1rem; filter: brightness(0) invert(1); }
.footer__brand p {
  font-size: 0.875rem;
  color: var(--color-gray-400);
  line-height: 1.7;
}
.footer__heading {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 1rem;
  color: var(--color-gray-300);
}
.footer__link {
  display: block;
  padding: 0.375rem 0;
  font-size: 0.9375rem;
  color: var(--color-gray-400);
  transition: color var(--transition);
}
.footer__link:hover { color: var(--color-primary-light); }
.footer__social {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
}
.footer__social a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-gray-600);
  border-radius: 50%;
  transition: all var(--transition);
}
.footer__social a:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
}
.footer__social svg { width: 18px; height: 18px; }
.footer__newsletter-text {
  font-size: 0.875rem;
  color: var(--color-gray-400);
  line-height: 1.6;
  margin-bottom: 1rem;
}
.footer__newsletter-row {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}
.footer__newsletter input {
  width: 100%;
  padding: 0.875rem 1rem;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  color: var(--color-white);
  transition: border-color var(--transition), background var(--transition);
}
.footer__newsletter input:focus {
  border-color: rgba(196, 30, 58, 0.5);
  background: rgba(255, 255, 255, 0.1);
}
.footer__newsletter input::placeholder { color: var(--color-gray-500); }
@media (min-width: 640px) {
  .footer__newsletter-row {
    flex-direction: row;
    align-items: stretch;
  }
  .footer__newsletter-row .btn {
    flex-shrink: 0;
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }
}
.footer__bottom {
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-gray-600);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  text-align: center;
  font-size: 0.8125rem;
  color: var(--color-gray-500);
}

/* --- Page Header (inner pages) --- */
.page-header {
  padding: clamp(3.75rem, 8vw, 5rem) 0 clamp(3.75rem, 8vw, 5rem);
  background:
    radial-gradient(ellipse 75% 55% at 50% 0%, rgba(196, 30, 58, 0.05), transparent 68%),
    linear-gradient(180deg, var(--color-white) 0%, var(--color-gray-50) 100%);
}
.page-header--book-detail {
  padding-top: clamp(4rem, 9vw, 5.5rem);
  padding-bottom: clamp(4rem, 9vw, 5.5rem);
}
.page-header__breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  font-size: 0.875rem;
  color: var(--color-gray-500);
}
.page-header__title {
  font-size: clamp(1.875rem, 4.5vw, 2.75rem);
  margin-bottom: 1.25rem;
  max-width: 42rem;
  line-height: 1.2;
}
.page-header__description {
  margin: 0 0 2rem;
  max-width: 42rem;
  font-size: clamp(1rem, 2vw, 1.125rem);
  line-height: 1.65;
  color: var(--color-gray-600);
}
.page-header__divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-gray-200) 12%, var(--color-gray-200) 88%, transparent);
}
.page-header__breadcrumb a:hover { color: var(--color-primary); }
.page-header__breadcrumb span { color: var(--color-gray-300); }
.page-header + .container,
.page-header + section {
  margin-top: 0;
}

/* --- Book Details --- */
.book-detail {
  display: grid;
  gap: 2.5rem;
  padding: 2.5rem 0;
}
.book-detail__gallery { position: relative; }
.book-detail__main-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  margin-bottom: 1rem;
  background: var(--color-gray-100);
}
.book-detail__main-image img { width: 100%; aspect-ratio: 2/3; object-fit: cover; }
.book-detail__thumbs {
  display: flex;
  gap: 0.75rem;
  overflow-x: auto;
}
.book-detail__thumb {
  flex: 0 0 72px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 2px solid transparent;
  cursor: pointer;
  transition: border-color var(--transition);
}
.book-detail__thumb--active,
.book-detail__thumb:hover { border-color: var(--color-primary); }
.book-detail__thumb img { width: 72px; height: 108px; object-fit: cover; }
.book-detail__category { margin-bottom: 0.75rem; }
.book-detail__title {
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  margin-bottom: 0.5rem;
  line-height: 1.3;
}
.book-detail__author {
  font-size: 1.0625rem;
  color: var(--color-gray-600);
  margin-bottom: 1rem;
}
.book-detail__price {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 1.5rem;
}
.book-detail__early-notice {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1rem;
  background: rgba(217, 119, 6, 0.1);
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
  color: var(--color-warning);
}
.book-detail__qty {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.qty-selector {
  display: flex;
  align-items: center;
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.qty-selector__btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  transition: background var(--transition);
}
.qty-selector__btn:hover { background: var(--color-gray-100); }
.qty-selector__input {
  width: 48px;
  text-align: center;
  border-left: 1px solid var(--color-gray-300);
  border-right: 1px solid var(--color-gray-300);
  padding: 0.5rem;
}
.book-detail__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}
.book-detail__share {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2rem;
}
.book-detail__share-btn {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.book-detail__share-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.book-detail__description h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}
.book-detail__description p {
  color: var(--color-gray-600);
  line-height: 1.8;
}

/* --- Cart --- */
.cart-layout {
  display: grid;
  gap: 2rem;
  padding: 2.5rem 0;
}
.cart-item {
  display: flex;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  margin-bottom: 1rem;
}
.cart-item__img {
  width: 80px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.cart-item__img img { width: 80px; height: 120px; object-fit: cover; }
.cart-item__info { flex: 1; min-width: 0; }
.cart-item__title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}
.cart-item__price { color: var(--color-primary); font-weight: 600; }
.cart-item__actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0.75rem;
}
.cart-item__remove {
  font-size: 0.8125rem;
  color: var(--color-gray-500);
  text-decoration: underline;
}
.cart-item__remove:hover { color: var(--color-primary); }
.cart-item__subtotal {
  font-weight: 700;
  text-align: right;
  margin-top: 0.5rem;
}
.cart-empty {
  text-align: center;
  padding: 4rem 1rem;
}
.cart-empty svg { width: 64px; height: 64px; margin: 0 auto 1rem; color: var(--color-gray-300); }
.cart-summary {
  background: var(--color-gray-50);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  height: fit-content;
}
.cart-summary__row {
  display: flex;
  justify-content: space-between;
  padding: 0.625rem 0;
  font-size: 0.9375rem;
}
.cart-summary__row--total {
  border-top: 2px solid var(--color-gray-300);
  margin-top: 0.5rem;
  padding-top: 1rem;
  font-size: 1.125rem;
  font-weight: 700;
}
.cart-summary__note {
  font-size: 0.8125rem;
  color: var(--color-success);
  margin: 0.75rem 0;
  padding: 0.75rem;
  background: rgba(22, 163, 74, 0.08);
  border-radius: var(--radius-sm);
}
.coupon-field {
  display: flex;
  gap: 0.5rem;
  margin: 1rem 0;
}
.coupon-field input {
  flex: 1;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-sm);
}

/* --- Checkout --- */
.checkout-layout {
  display: grid;
  gap: 2rem;
  padding: 2.5rem 0;
}
.form-section {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  margin-bottom: 1.5rem;
}
.form-section__title {
  font-size: 1.25rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--color-gray-200);
}
.form-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}
.form-group label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  margin-bottom: 0.375rem;
  color: var(--color-gray-600);
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(196, 30, 58, 0.1);
}
.form-group input:disabled,
.form-group select:disabled {
  background: var(--color-gray-100);
  color: var(--color-gray-500);
}
.form-group textarea { resize: vertical; min-height: 100px; }
.form-check {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0.75rem 0;
}
.form-check input { width: 18px; height: 18px; accent-color: var(--color-primary); }
.payment-placeholder {
  padding: 2rem;
  border: 2px dashed var(--color-gray-300);
  border-radius: var(--radius-md);
  text-align: center;
  color: var(--color-gray-500);
}
.payment-placeholder svg { width: 48px; height: 48px; margin: 0 auto 1rem; color: var(--color-gray-400); }

/* --- Gallery Page --- */
.gallery-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, 1fr);
}
.gallery-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 3/2;
}
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.gallery-item:hover img { transform: scale(1.05); }
.gallery-item__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0);
  transition: background var(--transition);
}
.gallery-item:hover .gallery-item__overlay { background: rgba(0,0,0,0.3); }
.gallery-item__overlay svg {
  width: 32px;
  height: 32px;
  color: var(--color-white);
  opacity: 0;
  transition: opacity var(--transition);
}
.gallery-item:hover .gallery-item__overlay svg { opacity: 1; }

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.9);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}
.lightbox--open { opacity: 1; visibility: visible; }
.lightbox__img {
  max-width: 90vw;
  max-height: 85vh;
  border-radius: var(--radius-md);
}
.lightbox__close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: 1.5rem;
}
.lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  background: rgba(255,255,255,0.1);
  border-radius: 50%;
}
.lightbox__nav--prev { left: 1rem; }
.lightbox__nav--next { right: 1rem; }

/* --- Publish Page --- */
.publish-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: 1fr;
}
.publish-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: transform var(--transition);
}
.publish-card:hover { transform: translateY(-4px); }
.publish-card__header {
  padding: 2rem;
  color: var(--color-white);
}
.publish-card--book .publish-card__header { background: var(--color-primary); }
.publish-card--thesis .publish-card__header { background: var(--color-black); }
.publish-card__header h2 { font-size: 1.75rem; margin-bottom: 0.5rem; }
.publish-card__body { padding: 2rem; }
.publish-card__benefits {
  margin: 1.5rem 0;
}
.publish-card__benefits li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.5rem 0;
  font-size: 0.9375rem;
}
.publish-card__benefits svg {
  width: 20px;
  height: 20px;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 2px;
}
.publish-steps {
  display: grid;
  gap: 1rem;
  margin: 1.5rem 0;
}
.publish-step {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.publish-step__num {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-gray-100);
  border-radius: 50%;
  font-weight: 700;
  font-size: 0.875rem;
  flex-shrink: 0;
}

/* --- News Page --- */
.news-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
}
.news-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}
.news-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.news-card__image img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}
.news-card__body { padding: 1.5rem; }
.news-card__date {
  font-size: 0.8125rem;
  color: var(--color-gray-500);
  margin-bottom: 0.5rem;
}
.news-card__title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}
.news-card__excerpt {
  color: var(--color-gray-600);
  font-size: 0.9375rem;
  margin-bottom: 1rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* --- Stars --- */
.stars {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  color: var(--color-warning);
}
.stars__icon svg { width: 16px; height: 16px; display: block; }
.stars__icon { opacity: 0.28; }
.stars__icon--filled { opacity: 1; }
.review-detail__rating.stars .stars__icon svg,
.review-list-card__rating.stars .stars__icon svg { width: 18px; height: 18px; }

/* --- Reviews Listing --- */
.reviews-grid {
  display: grid;
  gap: 1.5rem;
}
.review-list-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}
.review-list-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.review-list-card__inner {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding: 1.5rem;
  height: 100%;
}
@media (min-width: 640px) {
  .review-list-card__inner {
    flex-direction: row;
    align-items: flex-start;
    padding: 1.75rem;
  }
}
.review-list-card__book {
  flex-shrink: 0;
  width: 88px;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.review-list-card__book img {
  width: 88px;
  height: 132px;
  object-fit: cover;
}
.review-list-card__content { flex: 1; min-width: 0; }
.review-list-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}
.review-list-card__type {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
}
.review-list-card__date {
  font-size: 0.8125rem;
  color: var(--color-gray-500);
}
.review-list-card__title {
  font-family: var(--font-display);
  font-size: clamp(1.125rem, 2.5vw, 1.375rem);
  margin-bottom: 0.625rem;
  line-height: 1.35;
}
.review-list-card__excerpt {
  color: var(--color-gray-600);
  font-size: 0.9375rem;
  line-height: 1.65;
  margin-bottom: 0.875rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.review-list-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1rem;
  margin-bottom: 0.5rem;
}
.review-list-card__reviewer {
  font-weight: 600;
  font-size: 0.875rem;
}
.review-list-card__book-title {
  font-size: 0.8125rem;
  color: var(--color-gray-500);
  margin-bottom: 1rem;
}
.review-list-card__cta { pointer-events: none; }

/* --- Review Detail --- */
.review-detail {
  display: grid;
  gap: 2.5rem;
  padding: 2.5rem 0 3rem;
}
@media (min-width: 1024px) {
  .review-detail {
    grid-template-columns: 1fr 300px;
    align-items: start;
    gap: 3rem;
  }
}
.review-detail__type {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
}
.review-detail__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.75rem;
}
.review-detail__byline {
  font-size: 0.9375rem;
  color: var(--color-gray-600);
  margin-bottom: 1.75rem;
  padding-bottom: 1.75rem;
  border-bottom: 1px solid var(--color-gray-200);
}
.review-detail__content {
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--color-gray-600);
}
.review-detail__content p + p { margin-top: 1.25rem; }

.related-book-panel {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  border: 1px solid var(--color-gray-200);
}
.related-book-panel__label {
  padding: 0.875rem 1.25rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-gray-500);
  background: var(--color-gray-50);
  border-bottom: 1px solid var(--color-gray-200);
}
.related-book-panel__inner {
  display: block;
  padding: 1.25rem;
  transition: background var(--transition);
}
.related-book-panel__inner:hover { background: var(--color-gray-50); }
.related-book-panel__cover {
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 1rem;
  box-shadow: var(--shadow-sm);
}
.related-book-panel__cover img {
  width: 100%;
  aspect-ratio: 2/3;
  object-fit: cover;
}
.related-book-panel__title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  margin-bottom: 0.375rem;
  line-height: 1.35;
}
.related-book-panel__author {
  font-size: 0.875rem;
  color: var(--color-gray-600);
  margin-bottom: 0.625rem;
}
.related-book-panel__category { margin-bottom: 0.75rem; }
.related-book-panel__price {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.reviews-write {
  margin-top: 3rem;
  padding: 2rem;
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-gray-200);
}
.reviews-write__title {
  font-size: 1.5rem;
  margin-bottom: 0.375rem;
}
.reviews-write__desc {
  color: var(--color-gray-500);
  margin-bottom: 1.5rem;
  font-size: 0.9375rem;
}
.review-form__notice {
  font-size: 0.8125rem;
  color: var(--color-gray-500);
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  background: var(--color-gray-50);
  border-radius: var(--radius-md);
}
.rating-input {
  display: flex;
  gap: 0.25rem;
  flex-direction: row-reverse;
  justify-content: flex-end;
}
.rating-input input { display: none; }
.rating-input label {
  cursor: pointer;
  color: var(--color-gray-300);
  transition: color var(--transition);
}
.rating-input label svg { width: 28px; height: 28px; }
.rating-input input:checked ~ label,
.rating-input label:hover,
.rating-input label:hover ~ label { color: var(--color-warning); }

/* --- News Detail --- */
.news-detail {
  padding: 2.5rem 0 3rem;
  max-width: 760px;
}
.news-detail__image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-md);
}
.news-detail__image img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
}
.news-detail__content {
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--color-gray-600);
}
.news-detail__content p + p { margin-top: 1.25rem; }
.news-card--compact .news-card__body { padding: 1.25rem; }
.news-card__title a:hover { color: var(--color-primary); }
.more-news-grid {
  display: grid;
  gap: 1.25rem;
}
@media (min-width: 768px) {
  .reviews-grid { grid-template-columns: repeat(2, 1fr); }
  .more-news-grid { grid-template-columns: repeat(3, 1fr); }
}

/* --- Contact Page --- */
.contact-layout {
  display: grid;
  gap: 2rem;
  padding: 1.75rem 0 2.5rem;
}
.contact-info__item {
  display: flex;
  gap: 1rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--color-gray-200);
}
.contact-info__icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(196, 30, 58, 0.08);
  border-radius: 50%;
  color: var(--color-primary);
  flex-shrink: 0;
}
.contact-info__icon svg { width: 20px; height: 20px; }
.contact-info__label {
  font-size: 0.8125rem;
  color: var(--color-gray-500);
  margin-bottom: 0.25rem;
}
.map-placeholder {
  width: 100%;
  height: 280px;
  background: var(--color-gray-200);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray-500);
  font-size: 0.9375rem;
}

/* --- Filters (Books page) --- */
.books-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  padding: 1rem;
  background: var(--color-gray-50);
  border-radius: var(--radius-md);
}
.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.filter-tab {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  background: var(--color-white);
  border: 1px solid var(--color-gray-300);
  transition: all var(--transition);
}
.filter-tab:hover,
.filter-tab--active {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

/* --- Toast --- */
.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  z-index: 4000;
  padding: 0.875rem 1.5rem;
  background: var(--color-black);
  color: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: 0.9375rem;
  opacity: 0;
  transition: all 0.4s ease;
  pointer-events: none;
}
.toast--show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* --- Load More --- */
.load-more-wrap { text-align: center; margin-top: 2rem; }

/* --- Responsive --- */
@media (min-width: 480px) {
  .book-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 640px) {
  .category-grid { grid-template-columns: repeat(3, 1fr); }
  .cta-banner { grid-template-columns: repeat(2, 1fr); }
  .form-grid--2 { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 768px) {
  :root { --section-gap: 4rem; --header-height: 72px; }
  .contact-layout { padding: 2rem 0 2.5rem; gap: 2.5rem; }
  .header__menu-toggle { display: none; }
  .nav { display: block; }
  .book-grid { grid-template-columns: repeat(3, 1fr); }
  .footer__grid { grid-template-columns: repeat(2, 1fr); }
  .featured-collection { grid-template-columns: 1fr 1fr; }
  .book-detail { grid-template-columns: 1fr 1fr; }
  .cart-layout { grid-template-columns: 1fr 380px; }
  .checkout-layout { grid-template-columns: 1fr 380px; }
  .contact-layout { grid-template-columns: 1fr 1fr; }
  .publish-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1024px) {
  .book-grid { grid-template-columns: repeat(4, 1fr); }
  .category-grid { grid-template-columns: repeat(6, 1fr); }
  .footer__grid { grid-template-columns: 2fr 1fr 1fr 1.5fr; }
  .gallery-grid { grid-template-columns: repeat(4, 1fr); }
}

@media (min-width: 1280px) {
  .container { padding: 0 2rem; }
}

/* --- Accessibility --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 10000;
  padding: 0.75rem 1rem;
  background: var(--color-black);
  color: var(--color-white);
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-weight: 600;
}

.skip-link:focus,
.skip-link:focus-visible {
  top: 1rem;
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}