/* ================================================================
   SamBookStore — Premium Design System
   Theme: Deep Navy + Gold Accent
================================================================ */

/* ── Design Tokens — Dark (default) ────────────────────────── */
:root {
  --bg-deep:       #070d1a;
  --bg-card:       #0f1c35;
  --bg-elevated:   #162240;
  --bg-nav:        rgba(7,13,26,.95);
  --bg-top:        #040810;
  --accent:        #e8a12a;
  --accent-hover:  #c8851a;
  --accent-glow:   rgba(232,161,42,.18);
  --blue-bright:   #4fc3f7;
  --text-primary:  #f0f4ff;
  --text-secondary:#8fa0c0;
  --text-muted:    #4a607e;
  --border:        rgba(255,255,255,.07);
  --border-accent: rgba(232,161,42,.35);
  --shadow-card:   0 8px 32px rgba(0,0,0,.45);
  --shadow-hover:  0 16px 48px rgba(0,0,0,.65);
  --radius-sm:     8px;
  --radius-md:     14px;
  --radius-lg:     20px;
  --transition:    .22s cubic-bezier(.4,0,.2,1);
  --font-head:     'Poppins', sans-serif;
  --font-body:     'Inter', sans-serif;
  --scrollbar-bg:  var(--bg-deep);
  --scrollbar-thumb: var(--bg-elevated);
}

/* ── Design Tokens — Light ──────────────────────────────────── */
[data-theme="light"] {
  --bg-deep:       #f0f4fa;
  --bg-card:       #ffffff;
  --bg-elevated:   #e2e8f4;
  --bg-nav:        rgba(255,255,255,.97);
  --bg-top:        #162240;
  --accent:        #c8851a;
  --accent-hover:  #a86a10;
  --accent-glow:   rgba(200,133,26,.14);
  --blue-bright:   #0277bd;
  --text-primary:  #0d1b2e;
  --text-secondary:#3d5278;
  --text-muted:    #7a90b0;
  --border:        rgba(0,0,0,.1);
  --border-accent: rgba(200,133,26,.4);
  --shadow-card:   0 8px 32px rgba(0,0,0,.08);
  --shadow-hover:  0 16px 48px rgba(0,0,0,.18);
  --scrollbar-bg:  #e2e8f4;
  --scrollbar-thumb: #b8c4d8;
}

/* ── Theme transition ───────────────────────────────────────── */
body, .topbar, .navbar-main, .book-card, .footer,
.section-header, .stats-bar, .promo-banner,
.category-pill, .hero-slider, .dropdown-menu,
.account-dropdown .dropdown-menu,
.search-wrap input, .cart-btn, .account-dropdown .dropdown-toggle {
  transition: background-color .35s ease, border-color .35s ease, color .35s ease, box-shadow .35s ease !important;
}

/* ── Reset & Base ───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  background: var(--bg-deep);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.65;
  min-height: 100vh;
  overflow-x: hidden;
}

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

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

/* ── Scrollbar ──────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--scrollbar-bg, var(--bg-deep)); }
::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb, var(--bg-elevated)); border-radius: 6px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ================================================================
   TOPBAR
================================================================ */
.topbar {
  background: var(--bg-top);
  border-bottom: 1px solid var(--border);
  padding: 7px 0;
  font-size: .78rem;
  color: #8fa0c0;
}
.topbar a { color: #8fa0c0; }
.topbar a:hover { color: var(--accent); }
.topbar .tb-divider { opacity: .35; margin: 0 10px; }

/* ================================================================
   NAVBAR
================================================================ */
.navbar-main {
  background: var(--bg-nav);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: box-shadow var(--transition);
}
.navbar-main.scrolled {
  box-shadow: 0 4px 30px rgba(0,0,0,.5);
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary) !important;
  letter-spacing: -.5px;
}
.navbar-brand .brand-icon {
  width: 40px; height: 40px;
  background: linear-gradient(135deg, var(--accent), #f5c45e);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  color: var(--bg-deep);
  box-shadow: 0 4px 16px var(--accent-glow);
}
.navbar-brand .brand-sam { color: var(--accent); }

/* Nav links */
.nav-link-main {
  color: var(--text-secondary) !important;
  font-size: .88rem;
  font-weight: 500;
  padding: 6px 14px !important;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  position: relative;
}
.nav-link-main:hover,
.nav-link-main.active {
  color: var(--text-primary) !important;
  background: var(--accent-glow);
}
.nav-link-main.active::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 50%;
  transform: translateX(-50%);
  width: 20px; height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

/* Theme toggle button */
.theme-toggle {
  width: 40px; height: 40px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 1rem;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: all var(--transition);
}
.theme-toggle:hover {
  background: var(--accent-glow);
  border-color: var(--border-accent);
  color: var(--accent);
  transform: rotate(20deg);
}
[data-theme="light"] .theme-toggle { color: #c8851a; }

/* Cart icon */
.cart-btn {
  position: relative;
  display: flex; align-items: center; justify-content: center;
  width: 40px; height: 40px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 1rem;
  transition: all var(--transition);
}
.cart-btn:hover {
  background: var(--accent-glow);
  border-color: var(--border-accent);
  color: var(--accent);
}
.cart-badge {
  position: absolute;
  top: -6px; right: -6px;
  background: var(--accent);
  color: var(--bg-deep);
  font-size: .62rem;
  font-weight: 700;
  width: 18px; height: 18px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}

/* Search */
.search-wrap {
  position: relative;
  flex: 1;
  max-width: 380px;
}
.search-wrap input {
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  padding: 9px 44px 9px 16px;
  font-size: .88rem;
  transition: all var(--transition);
  outline: none;
}
.search-wrap input::placeholder { color: var(--text-muted); }
.search-wrap input:focus {
  border-color: var(--border-accent);
  background: var(--bg-card);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.search-wrap .search-btn {
  position: absolute; right: 12px; top: 50%;
  transform: translateY(-50%);
  background: none; border: none;
  color: var(--text-muted); cursor: pointer;
  font-size: .9rem;
  transition: color var(--transition);
}
.search-wrap .search-btn:hover { color: var(--accent); }

/* My Account dropdown */
.account-dropdown .dropdown-toggle {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 6px 14px;
  font-size: .85rem;
  display: flex; align-items: center; gap: 7px;
  transition: all var(--transition);
}
.account-dropdown .dropdown-toggle:hover {
  border-color: var(--border-accent);
  background: var(--accent-glow);
}
.account-dropdown .dropdown-menu {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 8px;
  min-width: 220px;
  box-shadow: var(--shadow-card);
}
.account-dropdown .dropdown-item {
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  padding: 9px 14px;
  font-size: .85rem;
  display: flex; align-items: center; gap: 10px;
  transition: all var(--transition);
}
.account-dropdown .dropdown-item:hover {
  background: var(--accent-glow);
  color: var(--accent);
}
.account-dropdown .dropdown-divider {
  border-color: var(--border);
  margin: 4px 0;
}

/* ================================================================
   HERO SLIDER
================================================================ */
.hero-slider {
  position: relative;
  overflow: hidden;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
}

.slide {
  display: none;
  position: relative;
  min-height: 480px;
  align-items: center;
}
.slide.active { display: flex; }

.slide-bg {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center;
  filter: brightness(.35);
  transition: transform 8s ease;
}
.slide.active .slide-bg { transform: scale(1.04); }

.slide-gradient {
  position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(7,13,26,.95) 40%, transparent 100%);
}

.slide-content {
  position: relative; z-index: 2;
  max-width: 560px;
  animation: slideIn .6s ease both;
}
@keyframes slideIn {
  from { opacity: 0; transform: translateX(-30px); }
  to   { opacity: 1; transform: translateX(0); }
}

.slide-eyebrow {
  display: inline-block;
  background: var(--accent-glow);
  border: 1px solid var(--border-accent);
  color: var(--accent);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 16px;
}
.slide-title {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 14px;
  color: var(--text-primary);
}
.slide-title span { color: var(--accent); }
.slide-subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 28px;
}

/* Slider controls */
.slider-dots {
  position: absolute; bottom: 24px; left: 50%;
  transform: translateX(-50%);
  display: flex; gap: 8px; z-index: 10;
}
.slider-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,.3);
  cursor: pointer;
  transition: all var(--transition);
  border: none;
}
.slider-dot.active {
  background: var(--accent);
  width: 24px;
  border-radius: 4px;
}

.slider-nav {
  position: absolute; top: 50%; z-index: 10;
  transform: translateY(-50%);
  background: rgba(7,13,26,.7);
  border: 1px solid var(--border);
  color: var(--text-primary);
  width: 44px; height: 44px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; font-size: 1rem;
  transition: all var(--transition);
  backdrop-filter: blur(8px);
}
.slider-nav:hover { background: var(--accent); border-color: var(--accent); }
.slider-prev { left: 20px; }
.slider-next { right: 20px; }

/* ================================================================
   PROMO BANNERS
================================================================ */
.promo-banners {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 24px 0;
}
.promo-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  display: flex; align-items: center; gap: 20px;
  transition: all var(--transition);
  overflow: hidden;
  position: relative;
}
.promo-card::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--accent-glow) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition);
}
.promo-card:hover { border-color: var(--border-accent); transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.promo-card:hover::before { opacity: 1; }
.promo-icon {
  font-size: 2.5rem;
  background: var(--bg-elevated);
  width: 64px; height: 64px;
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.promo-card h5 { font-family: var(--font-head); font-weight: 600; color: var(--text-primary); margin-bottom: 4px; }
.promo-card p  { font-size: .83rem; color: var(--text-secondary); margin: 0; }

/* ================================================================
   SECTION HEADERS
================================================================ */
.section-header {
  display: flex; align-items: flex-end; justify-content: space-between;
  margin-bottom: 24px;
}
.section-label {
  display: block;
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 4px;
}
.section-title {
  font-family: var(--font-head);
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
}
.section-title span { color: var(--accent); }

.view-all-link {
  color: var(--text-secondary);
  font-size: .83rem;
  font-weight: 500;
  display: flex; align-items: center; gap: 5px;
  transition: all var(--transition);
  white-space: nowrap;
}
.view-all-link:hover { color: var(--accent); gap: 10px; }

/* ================================================================
   BOOK CARD
================================================================ */
.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 20px;
}

.book-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
  position: relative;
  cursor: pointer;
  display: flex;
  flex-direction: column;
}
.book-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-accent);
  box-shadow: var(--shadow-hover);
}

.book-cover-wrap {
  position: relative;
  padding-top: 140%;
  overflow: hidden;
  background: var(--bg-elevated);
  flex-shrink: 0;
}
.book-cover-wrap img {
  position: absolute;
  inset: 0; width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.book-card:hover .book-cover-wrap img { transform: scale(1.06); }

/* Overlay on hover */
.book-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(7,13,26,.95) 0%, rgba(7,13,26,.3) 60%, transparent 100%);
  display: flex; flex-direction: column; justify-content: flex-end; align-items: center;
  padding: 14px 10px;
  opacity: 0;
  transition: opacity var(--transition);
  gap: 8px;
}
.book-card:hover .book-overlay { opacity: 1; }

/* Badges */
.book-badge {
  position: absolute; top: 10px; left: 10px;
  font-size: .67rem;
  font-weight: 700;
  letter-spacing: .5px;
  text-transform: uppercase;
  padding: 3px 9px;
  border-radius: 4px;
  line-height: 1;
}
.badge-free      { background: #1db954; color: #fff; }
.badge-new       { background: var(--blue-bright); color: var(--bg-deep); }
.badge-bestseller{ background: var(--accent); color: var(--bg-deep); }
.badge-featured  { background: #9c27b0; color: #fff; }

/* eBook chip — always visible bottom-left of cover */
.ebook-chip {
  position: absolute;
  bottom: 10px; left: 10px;
  background: rgba(7,13,26,.82);
  border: 1px solid rgba(79,195,247,.4);
  color: var(--blue-bright);
  font-size: .62rem; font-weight: 700;
  letter-spacing: .6px; text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 4px;
  backdrop-filter: blur(6px);
  display: flex; align-items: center; gap: 4px;
  z-index: 2;
}

/* Discount ribbon */
.book-discount {
  position: absolute; top: 10px; right: -2px;
  background: #e53935;
  color: #fff;
  font-size: .65rem; font-weight: 700;
  padding: 3px 10px 3px 8px;
  clip-path: polygon(0 0,100% 0,100% 100%,0 100%,6% 50%);
}

.book-info {
  padding: 14px 12px 16px;
  display: flex; flex-direction: column; gap: 5px;
  flex: 1;
}
.book-category {
  font-size: .68rem;
  color: var(--accent);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .8px;
}
.book-title {
  font-family: var(--font-head);
  font-size: .88rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.book-author {
  font-size: .76rem;
  color: var(--text-muted);
}
.book-price {
  margin-top: 6px;
  display: flex; align-items: center; gap: 8px;
}
.price-main {
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
}
.price-original {
  font-size: .76rem;
  color: var(--text-muted);
  text-decoration: line-through;
}
.price-free {
  font-size: .82rem;
  font-weight: 700;
  color: #1db954;
  background: rgba(29,185,84,.12);
  border: 1px solid rgba(29,185,84,.3);
  padding: 2px 9px;
  border-radius: 4px;
}

.book-stars { font-size: .75rem; color: var(--accent); }
.book-stars .star-count { color: var(--text-muted); margin-left: 3px; }

/* ================================================================
   BUTTONS
================================================================ */
.btn-primary-gold {
  background: linear-gradient(135deg, var(--accent), #f5c45e);
  color: var(--bg-deep);
  border: none;
  border-radius: var(--radius-sm);
  padding: 10px 22px;
  font-weight: 600;
  font-size: .88rem;
  display: inline-flex; align-items: center; gap: 8px;
  transition: all var(--transition);
  box-shadow: 0 4px 16px var(--accent-glow);
  cursor: pointer;
  white-space: nowrap;
}
.btn-primary-gold:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(232,161,42,.4);
  color: var(--bg-deep);
}
.btn-primary-gold:active { transform: translateY(0); }

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  padding: 9px 18px;
  font-size: .85rem;
  font-weight: 500;
  display: inline-flex; align-items: center; gap: 7px;
  transition: all var(--transition);
  cursor: pointer;
}
.btn-ghost:hover {
  border-color: var(--border-accent);
  color: var(--accent);
  background: var(--accent-glow);
}

.btn-icon {
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  width: 36px; height: 36px;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: .9rem;
  transition: all var(--transition);
  cursor: pointer;
}
.btn-icon:hover { background: var(--accent); border-color: var(--accent); color: var(--bg-deep); }

.btn-sm { padding: 6px 14px; font-size: .8rem; }
.btn-lg { padding: 14px 30px; font-size: 1rem; }

/* ================================================================
   SECTION WRAPPER
================================================================ */
.section-wrap {
  padding: 52px 0;
}
.section-wrap + .section-wrap {
  border-top: 1px solid var(--border);
}
.container-main {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ================================================================
   STATS BAR
================================================================ */
.stats-bar {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 28px 0;
}
.stat-item {
  text-align: center;
  position: relative;
}
.stat-item + .stat-item::before {
  content: '';
  position: absolute; left: 0; top: 20%; height: 60%;
  width: 1px; background: var(--border);
}
.stat-number {
  font-family: var(--font-head);
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}
.stat-label {
  font-size: .78rem;
  color: var(--text-muted);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: .8px;
}

/* ================================================================
   CATEGORY PILLS
================================================================ */
.category-pills {
  display: flex; flex-wrap: wrap; gap: 10px;
  margin-bottom: 28px;
}
.cat-pill {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 30px;
  padding: 7px 18px;
  font-size: .82rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.cat-pill:hover,
.cat-pill.active {
  background: var(--accent-glow);
  border-color: var(--border-accent);
  color: var(--accent);
}

/* ================================================================
   FOOTER
================================================================ */
.site-footer {
  background: #040810;
  border-top: 1px solid var(--border);
  padding-top: 56px;
}
.footer-brand .brand-name {
  font-family: var(--font-head);
  font-size: 1.4rem; font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
}
.footer-brand .brand-name span { color: var(--accent); }
.footer-brand p {
  color: var(--text-muted);
  font-size: .85rem;
  line-height: 1.7;
  max-width: 280px;
}
.footer-social {
  display: flex; gap: 10px; margin-top: 18px;
}
.social-btn {
  width: 38px; height: 38px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-secondary);
  font-size: .9rem;
  transition: all var(--transition);
}
.social-btn:hover { background: var(--accent); border-color: var(--accent); color: var(--bg-deep); }

.footer-heading {
  font-family: var(--font-head);
  font-size: .9rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: .5px;
  margin-bottom: 16px;
  text-transform: uppercase;
}
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 9px; }
.footer-links a {
  color: var(--text-muted);
  font-size: .84rem;
  transition: color var(--transition);
  display: flex; align-items: center; gap: 6px;
}
.footer-links a:hover { color: var(--accent); padding-left: 4px; }

.footer-contact-item {
  display: flex; gap: 12px; margin-bottom: 14px;
}
.footer-contact-item .icon {
  color: var(--accent); font-size: 1rem; margin-top: 2px; flex-shrink: 0;
}
.footer-contact-item span { color: var(--text-muted); font-size: .84rem; line-height: 1.5; }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 18px 0;
  margin-top: 40px;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px;
}
.footer-bottom p { color: var(--text-muted); font-size: .79rem; margin: 0; }

.payment-logos {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
}
.payment-badge {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 4px 12px;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .5px;
  color: var(--text-secondary);
  text-transform: uppercase;
}
.payment-badge.pp  { color: #0070ba; }
.payment-badge.str { color: #6772e5; }
.payment-badge.mid { color: #00a5e0; }

/* ================================================================
   TRUST BADGE STRIP
================================================================ */
.trust-strip {
  background: linear-gradient(135deg, var(--bg-card), var(--bg-elevated));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 32px;
  display: flex; align-items: center; justify-content: space-around;
  flex-wrap: wrap; gap: 20px;
  margin: 48px 0 0;
}
.trust-item {
  display: flex; align-items: center; gap: 12px;
  color: var(--text-secondary);
  font-size: .84rem;
}
.trust-item .trust-icon {
  font-size: 1.6rem;
  color: var(--accent);
}
.trust-item strong {
  display: block;
  color: var(--text-primary);
  font-size: .9rem;
  margin-bottom: 1px;
}

/* ================================================================
   RESPONSIVE
================================================================ */
@media (max-width: 992px) {
  .promo-banners { grid-template-columns: 1fr; }
  .books-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 14px; }
  .slide { min-height: 360px; }
  .trust-strip { padding: 20px; }
}

@media (max-width: 768px) {
  .section-wrap { padding: 36px 0; }
  .slide { min-height: 280px; }
  .slide-title { font-size: 1.4rem; }
  .slide-subtitle { font-size: .88rem; }
  .topbar { display: none; }
  .stats-bar .stat-item + .stat-item::before { display: none; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .search-wrap { max-width: 100%; }
  .books-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .books-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .section-title { font-size: 1.2rem; }
  .promo-card { flex-direction: column; text-align: center; }
  .slider-nav { display: none; }
}

/* ================================================================
   UTILITY
================================================================ */
.text-accent  { color: var(--accent); }
.text-muted-c { color: var(--text-muted); }
.text-secondary-c { color: var(--text-secondary); }
.bg-card      { background: var(--bg-card); }
.border-thin  { border: 1px solid var(--border); }
.rounded-main { border-radius: var(--radius-md); }
.mt-section   { margin-top: 52px; }
.mb-section   { margin-bottom: 52px; }

/* Page loader */
#page-loader {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--bg-deep);
  display: flex; align-items: center; justify-content: center;
  transition: opacity .4s ease;
}
#page-loader.fade-out { opacity: 0; pointer-events: none; }
.loader-ring {
  width: 48px; height: 48px;
  border: 3px solid var(--bg-elevated);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Toast notification */
.toast-stack {
  position: fixed; bottom: 24px; right: 24px;
  display: flex; flex-direction: column; gap: 10px;
  z-index: 9000;
}
.toast-item {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  display: flex; align-items: center; gap: 12px;
  min-width: 280px;
  box-shadow: var(--shadow-card);
  animation: toastIn .3s ease;
}
.toast-item.success { border-left: 3px solid #1db954; }
.toast-item.error   { border-left: 3px solid #e53935; }
.toast-item.info    { border-left: 3px solid var(--blue-bright); }
@keyframes toastIn {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* ================================================================
   LIGHT THEME FINE-TUNING
================================================================ */
[data-theme="light"] body { background: var(--bg-deep); }

/* Hero slider always keeps dark/white styling — photo bg is always dark */
[data-theme="light"] .slide-title       { color: #f0f4ff; }
[data-theme="light"] .slide-title span  { color: #e8a12a; }
[data-theme="light"] .slide-subtitle    { color: rgba(240,244,255,.82); }
[data-theme="light"] .slide-eyebrow     { background: rgba(232,161,42,.18); border-color: rgba(232,161,42,.4); color: #e8a12a; }
[data-theme="light"] .slider-dot        { background: rgba(255,255,255,.35); }
[data-theme="light"] .slider-dot.active { background: #e8a12a; }
[data-theme="light"] .slider-prev,
[data-theme="light"] .slider-next       { background: rgba(255,255,255,.15); color: #fff; border-color: rgba(255,255,255,.25); }

[data-theme="light"] .navbar-main {
  box-shadow: 0 2px 16px rgba(0,0,0,.08);
}
[data-theme="light"] .navbar-main.scrolled {
  box-shadow: 0 4px 24px rgba(0,0,0,.14);
}

[data-theme="light"] .navbar-brand {
  color: var(--text-primary) !important;
}

[data-theme="light"] .search-wrap input {
  background: var(--bg-elevated);
  color: var(--text-primary);
}
[data-theme="light"] .search-wrap input::placeholder { color: var(--text-muted); }

[data-theme="light"] .account-dropdown .dropdown-menu {
  background: #ffffff;
  box-shadow: 0 8px 32px rgba(0,0,0,.12);
}

[data-theme="light"] .book-card {
  background: var(--bg-card);
  box-shadow: 0 4px 16px rgba(0,0,0,.07);
}
[data-theme="light"] .book-card:hover {
  box-shadow: 0 12px 40px rgba(0,0,0,.14);
}

[data-theme="light"] .section-header h2 { color: var(--text-primary); }
[data-theme="light"] .section-header p   { color: var(--text-secondary); }

[data-theme="light"] .stats-bar {
  background: linear-gradient(135deg, #162240, #1e3060);
  color: #fff;
}

[data-theme="light"] .footer {
  background: #111e36;
  color: #c0cce0;
}

[data-theme="light"] .promo-banner {
  border-color: rgba(0,0,0,.1);
}

[data-theme="light"] .category-pill {
  background: var(--bg-card);
  border-color: var(--border);
  color: var(--text-secondary);
}
[data-theme="light"] .category-pill:hover,
[data-theme="light"] .category-pill.active {
  background: var(--accent-glow);
  border-color: var(--border-accent);
  color: var(--accent);
}

[data-theme="light"] .btn-primary-main {
  color: #fff;
}

[data-theme="light"] #page-loader { background: var(--bg-deep); }

[data-theme="light"] .dropdown-menu {
  background: #ffffff !important;
  border-color: var(--border) !important;
}
[data-theme="light"] .dropdown-item { color: var(--text-secondary) !important; }
[data-theme="light"] .dropdown-item:hover {
  background: var(--accent-glow) !important;
  color: var(--accent) !important;
}