/* ============================================================
   MOKSHARA EBOOK STORE — Design System & Styles
   Brand Colors: Deep Navy, Gold, Teal/Cyan
   
   Performance Notes:
   - Google Fonts loaded via <link rel="preload"> in HTML for font-display:swap
   - Orb animations use GPU compositing (will-change, contain)
   - prefers-reduced-motion disables all non-essential animations
   - All interactive elements have :focus-visible states (WCAG 2.1)
   ============================================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Brand Colors (Base) — from Mokshara logo */
  --navy-deepest: #060a14;
  --navy-deep: #0a0e1a;
  --navy: #0f1628;
  --navy-light: #161e35;
  --navy-lighter: #1c2640;
  --navy-surface: #1f2a4a;

  /* Gold Palette — logo gold tones */
  --gold-dark: #8a6d2b;
  --gold: #c9a84c;
  --gold-light: #dfc06a;
  --gold-pale: #f0dea0;
  --gold-glow: rgba(201, 168, 76, 0.3);

  /* Teal Palette — logo teal/cyan tones */
  --teal-dark: #1f7a77;
  --teal: #3ab5b0;
  --teal-light: #5cd4cf;
  --teal-glow: rgba(58, 181, 176, 0.25);

  /* White */
  --white: #ffffff;

  /* Gradients — Brand gradients from logo colors */
  --gradient-gold: linear-gradient(135deg, #c9a84c 0%, #dfc06a 50%, #c9a84c 100%);
  --gradient-teal: linear-gradient(135deg, #1f7a77 0%, #3ab5b0 50%, #5cd4cf 100%);
  --gradient-glass: linear-gradient(145deg, rgba(31,42,74,0.4) 0%, rgba(15,22,40,0.6) 100%);

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.15);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.25);
  --shadow-gold: 0 4px 20px rgba(201, 168, 76, 0.15);
  --shadow-teal: 0 4px 20px rgba(58, 181, 176, 0.15);

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 50%;

  /* Easing & Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
  --transition-fast: 0.2s var(--ease-out);
  --transition-med: 0.4s var(--ease-out);
  --transition-slow: 0.6s var(--ease-out);

  /* Typography */
  --font-heading: 'Playfair Display', 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-accent: 'Cormorant Garamond', Georgia, serif;

  /* Focus Rings (Accessibility) */
  --focus-ring: 0 0 0 3px rgba(201, 168, 76, 0.5), 0 0 0 6px rgba(201, 168, 76, 0.15);
  --focus-ring-teal: 0 0 0 3px rgba(58, 181, 176, 0.5), 0 0 0 6px rgba(58, 181, 176, 0.15);
}

/* ============================================================
   DARK THEME — Logo-derived deep navy background
   ============================================================ */
[data-theme="dark"] {
  --bg-main: #060a14;
  --bg-surface: #0a0e1a;
  --bg-element: #1f2a4a;
  --text-primary: #ffffff; /* Brightened from #f0eae0 for crisp readability */
  --text-secondary: #c5becf; /* Brightened from #a8a0b0 to increase card body contrast */
  --text-muted: #8b85a3; /* Brightened from #6b6580 to resolve low contrast failures */
  --overlay: rgba(6, 10, 20, 0.85);
  --nav-scrolled-bg: rgba(6, 10, 20, 0.92);
  --gradient-hero: linear-gradient(180deg, rgba(6,10,20,0) 0%, rgba(6,10,20,0.6) 50%, #060a14 100%);
  --gradient-card: linear-gradient(145deg, rgba(31,42,74,0.6) 0%, rgba(15,22,40,0.8) 100%);
  --gradient-glass: linear-gradient(145deg, rgba(31,42,74,0.4) 0%, rgba(15,22,40,0.6) 100%);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.4);
  --shadow-gold: 0 4px 20px rgba(201, 168, 76, 0.15);
  --shadow-teal: 0 4px 20px rgba(58, 181, 176, 0.15);
}

/* ============================================================
   LIGHT THEME — Warm ivory/parchment with logo gold & teal accents
   ============================================================ */
[data-theme="light"] {
  --bg-main: #fdfbf7;
  --bg-surface: #f7f2e8;
  --bg-element: #ffffff;
  --text-primary: #060a14;
  --text-secondary: #1a253d; /* Darkened from #1c2640 for sharper contrast */
  --text-muted: #334363; /* Darkened from #50628a to pass WCAG AA readability checks */
  --teal: #135d5a; /* High contrast brand teal for readable labels / category tags */
  --teal-light: #186f6c; /* High contrast brand teal-light for readable links */
  --overlay: rgba(253, 251, 247, 0.85);
  --nav-scrolled-bg: rgba(253, 251, 247, 0.82);
  --gradient-hero: linear-gradient(180deg, rgba(253,251,247,0) 0%, rgba(253,251,247,0.6) 50%, #fdfbf7 100%);
  --gradient-card: linear-gradient(145deg, rgba(255,255,255,0.92) 0%, rgba(247,242,232,0.85) 100%);
  --gradient-glass: linear-gradient(145deg, rgba(255,255,255,0.7) 0%, rgba(247,242,232,0.5) 100%);
  
  /* Richer, deeper shadows for light theme to prevent flat appearance and make images pop */
  --shadow-sm: 0 4px 10px rgba(6, 10, 20, 0.03), 0 1px 3px rgba(6, 10, 20, 0.01);
  --shadow-md: 0 8px 24px rgba(6, 10, 20, 0.06), 0 2px 8px rgba(6, 10, 20, 0.03);
  --shadow-lg: 0 16px 48px rgba(6, 10, 20, 0.1), 0 4px 16px rgba(6, 10, 20, 0.05);
  --shadow-gold: 0 8px 30px rgba(138, 109, 43, 0.22), 0 2px 10px rgba(138, 109, 43, 0.1);
  --shadow-teal: 0 8px 30px rgba(19, 93, 90, 0.22), 0 2px 10px rgba(19, 93, 90, 0.1);
}


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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  scrollbar-width: thin;
  scrollbar-color: var(--gold-dark) var(--navy-deep);
}

body {
  font-family: var(--font-body);
  background: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  /* Scoped to background-color only — avoids full-page repaint on theme toggle */
  transition: background-color var(--transition-med);
}

::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--navy-deep);
}
::-webkit-scrollbar-thumb {
  background: var(--gold-dark);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--gold);
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}

button {
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
  transition: all var(--transition-fast);
}

/* ---------- WCAG 2.1: Skip Link ---------- */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  padding: var(--space-sm) var(--space-lg);
  background: var(--gold);
  color: var(--navy-deep);
  font-weight: 700;
  font-size: 0.9rem;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  z-index: 9999;
  transition: top var(--transition-fast);
}
.skip-link:focus {
  top: 0;
  outline: none;
  box-shadow: var(--focus-ring);
}

/* ---------- WCAG 2.1: Screen Reader Only ---------- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* ---------- WCAG 2.1: Global Focus Styles ---------- */
*:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: var(--radius-sm);
}

a:focus-visible,
button:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

/* ---------- Animated Background (GPU Composited) ---------- */
.bg-orbs {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
  contain: strict;
  content-visibility: auto;
}

.bg-orbs .orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0;
  /* Animations deferred until page load via JS .orb-animated class */
  will-change: transform;
  contain: layout style paint;
  transform: translateZ(0); /* Force GPU layer */
}

.bg-orbs .orb.orb-animated {
  opacity: 0.15;
  animation: orbFloat 20s ease-in-out infinite;
}

.bg-orbs .orb:nth-child(1) {
  width: 500px; height: 500px;
  background: var(--gold);
  top: -10%; left: -5%;
  animation-duration: 25s;
}
.bg-orbs .orb:nth-child(2) {
  width: 400px; height: 400px;
  background: var(--teal);
  top: 50%; right: -10%;
  animation-duration: 20s;
  animation-delay: -5s;
}
.bg-orbs .orb:nth-child(3) {
  width: 350px; height: 350px;
  background: var(--gold-light);
  bottom: -5%; left: 30%;
  animation-duration: 22s;
  animation-delay: -10s;
}

@keyframes orbFloat {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  25% { transform: translate3d(40px, -30px, 0) scale(1.05); }
  50% { transform: translate3d(-20px, 20px, 0) scale(0.95); }
  75% { transform: translate3d(30px, 40px, 0) scale(1.02); }
}

/* ---------- Utility ---------- */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-accent);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: var(--space-md);
}

.section-label::before {
  content: '';
  width: 32px;
  height: 1px;
  background: var(--gradient-gold);
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.7;
}

.gold-text {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.teal-text {
  color: var(--teal);
}

/* ---------- Fade-in Animations ---------- */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }
.fade-in-delay-5 { transition-delay: 0.5s; }

/* ============================================================
   NAVIGATION
   ============================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-md) 0;
  transition: all var(--transition-med);
  background: transparent;
}

.navbar.scrolled {
  background: var(--nav-scrolled-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(201, 168, 76, 0.1);
  padding: var(--space-sm) 0;
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-logo img {
  height: 48px;
  width: 48px;
  border-radius: var(--radius-full);
  object-fit: cover;
  border: 2px solid rgba(201, 168, 76, 0.3);
}

.nav-logo-text {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
  list-style: none;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.5px;
  position: relative;
  padding: var(--space-xs) 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-gold);
  transition: width var(--transition-med);
  border-radius: 2px;
}

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

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

.nav-links a:focus-visible {
  color: var(--gold-light);
  box-shadow: none;
  outline: 2px solid var(--gold);
  outline-offset: 4px;
  border-radius: 2px;
}

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

.nav-cart {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  background: rgba(201, 168, 76, 0.1);
  border: 1px solid rgba(201, 168, 76, 0.2);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-xl);
  color: var(--gold);
  font-weight: 500;
  font-size: 0.9rem;
}

.nav-cart:hover {
  background: rgba(201, 168, 76, 0.2);
  border-color: rgba(201, 168, 76, 0.4);
  transform: translateY(-1px);
}

.nav-cart:focus-visible {
  box-shadow: var(--focus-ring);
  border-radius: var(--radius-xl);
}

.cart-count {
  background: var(--gold);
  color: var(--navy-deep);
  font-size: 0.7rem;
  font-weight: 700;
  width: 20px;
  height: 20px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  padding: var(--space-sm);
}
.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--gold);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.nav-toggle:focus-visible {
  box-shadow: var(--focus-ring);
  border-radius: var(--radius-sm);
}

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

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse at 20% 50%, rgba(201, 168, 76, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 30%, rgba(58, 181, 176, 0.06) 0%, transparent 60%),
    radial-gradient(ellipse at 50% 80%, rgba(201, 168, 76, 0.04) 0%, transparent 50%);
}

.hero-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 3px;
  height: 3px;
  background: var(--gold);
  border-radius: 50%;
  opacity: 0;
  animation: particleFade 4s ease-in-out infinite;
  will-change: transform, opacity;
}

.particle:nth-child(1) { top: 20%; left: 10%; animation-delay: 0s; }
.particle:nth-child(2) { top: 40%; left: 80%; animation-delay: 1s; }
.particle:nth-child(3) { top: 60%; left: 30%; animation-delay: 2s; }
.particle:nth-child(4) { top: 80%; left: 70%; animation-delay: 0.5s; }
.particle:nth-child(5) { top: 30%; left: 50%; animation-delay: 1.5s; }
.particle:nth-child(6) { top: 70%; left: 20%; animation-delay: 2.5s; }
.particle:nth-child(7) { top: 10%; left: 60%; animation-delay: 3s; }
.particle:nth-child(8) { top: 50%; left: 90%; animation-delay: 0.8s; }

@keyframes particleFade {
  0%, 100% { opacity: 0; transform: translateY(0) scale(1); }
  50% { opacity: 0.6; transform: translateY(-20px) scale(1.5); }
}

.hero .container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: var(--space-4xl);
}

.hero-content {
  max-width: 600px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  background: rgba(201, 168, 76, 0.1);
  border: 1px solid rgba(201, 168, 76, 0.2);
  border-radius: var(--radius-xl);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--gold);
  margin-bottom: var(--space-xl);
  animation: badgePulse 3s ease-in-out infinite;
}

@keyframes badgePulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(201, 168, 76, 0.1); }
  50% { box-shadow: 0 0 0 8px rgba(201, 168, 76, 0); }
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: var(--space-xl);
}

.hero-title .line {
  display: block;
}

.hero-title-sub {
  font-size: 0.6em;
  color: var(--text-secondary);
  font-weight: 400;
}

.hero-title .highlight {
  position: relative;
  display: inline;
}

.hero-title .highlight::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 0;
  right: 0;
  height: 8px;
  background: rgba(201, 168, 76, 0.2);
  border-radius: 4px;
  z-index: -1;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-2xl);
  max-width: 500px;
}

.hero-cta {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 14px 32px;
  background: var(--gradient-gold);
  color: var(--navy-deep);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-xl);
  letter-spacing: 0.5px;
  box-shadow: var(--shadow-gold);
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 40px rgba(201, 168, 76, 0.35);
}
.btn-primary:hover::before {
  opacity: 1;
}

.btn-primary:focus-visible {
  box-shadow: var(--focus-ring), var(--shadow-gold);
  border-radius: var(--radius-xl);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 14px 32px;
  background: transparent;
  color: var(--text-primary);
  font-weight: 500;
  font-size: 0.95rem;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-xl);
}

.btn-secondary:hover {
  border-color: var(--teal);
  color: var(--teal-light);
  background: rgba(58, 181, 176, 0.08);
  transform: translateY(-2px);
}

.btn-secondary:focus-visible {
  box-shadow: var(--focus-ring-teal);
  border-radius: var(--radius-xl);
}

/* Hero visual — floating book cards */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 500px;
}

.hero-book-showcase {
  position: relative;
  width: 350px;
  height: 460px;
  perspective: 1000px;
}

.hero-book-main {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg), var(--shadow-gold);
  transform: rotateY(-5deg) rotateX(2deg);
  transition: transform var(--transition-slow);
  animation: bookFloat 6s ease-in-out infinite;
  contain: layout paint;
}

.hero-book-main:hover {
  transform: rotateY(0deg) rotateX(0deg) scale(1.02);
}

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

@keyframes bookFloat {
  0%, 100% { transform: rotateY(-5deg) rotateX(2deg) translateY(0); }
  50% { transform: rotateY(-5deg) rotateX(2deg) translateY(-15px); }
}

.hero-book-secondary {
  position: absolute;
  width: 160px;
  height: 210px;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-med);
  contain: layout paint;
}

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

.hero-book-secondary:nth-child(2) {
  bottom: -20px;
  right: -50px;
  transform: rotate(5deg);
  animation: bookFloat2 7s ease-in-out infinite;
}
.hero-book-secondary:nth-child(3) {
  top: -10px;
  left: -60px;
  transform: rotate(-8deg);
  animation: bookFloat2 8s ease-in-out infinite reverse;
}

@keyframes bookFloat2 {
  0%, 100% { transform: rotate(5deg) translateY(0); }
  50% { transform: rotate(5deg) translateY(-10px); }
}

.hero-book-secondary:nth-child(3) {
  animation-name: bookFloat3;
}
@keyframes bookFloat3 {
  0%, 100% { transform: rotate(-8deg) translateY(0); }
  50% { transform: rotate(-8deg) translateY(-12px); }
}

/* Hero stats */
.hero-stats {
  display: flex;
  gap: var(--space-2xl);
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(255,255,255,0.06);
}

.stat-item {
  text-align: left;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--gold);
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 2px;
}

/* ============================================================
   FREE EBOOK SECTION
   ============================================================ */
.free-ebook-section {
  position: relative;
  padding: var(--space-4xl) 0;
  z-index: 1;
}

.free-ebook-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-3xl);
  align-items: center;
  padding: var(--space-3xl);
  background: var(--gradient-glass);
  border: 1px solid rgba(58, 181, 176, 0.15);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
}

.free-ebook-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 3px;
  background: var(--gradient-teal);
}

.free-ebook-card::after {
  content: 'FREE';
  position: absolute;
  top: 24px;
  right: -36px;
  background: var(--teal);
  color: var(--navy-deep);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 2px;
  padding: 6px 48px;
  transform: rotate(45deg);
}

.free-ebook-image {
  width: 240px;
  height: 320px;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-lg), var(--shadow-teal);
  flex-shrink: 0;
  transform: rotate(-2deg);
  transition: transform var(--transition-med);
}
.free-ebook-card:hover .free-ebook-image {
  transform: rotate(0deg) scale(1.02);
}

.free-ebook-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.free-ebook-title {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.free-ebook-content h3 {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.free-ebook-content p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-xl);
  max-width: 520px;
}

.free-ebook-features {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
  list-style: none;
}

.feature-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: rgba(58, 181, 176, 0.1);
  border: 1px solid rgba(58, 181, 176, 0.2);
  border-radius: var(--radius-xl);
  font-size: 0.8rem;
  color: var(--teal-light);
}

.btn-teal {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 14px 32px;
  background: var(--gradient-teal);
  color: var(--navy-deep);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-teal);
}
.btn-teal:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 40px rgba(58, 181, 176, 0.3);
}
.btn-teal:focus-visible {
  box-shadow: var(--focus-ring-teal);
  border-radius: var(--radius-xl);
}

/* ============================================================
   EBOOK STORE GRID
   ============================================================ */
.store-section {
  position: relative;
  z-index: 1;
  padding: var(--space-4xl) 0;
}

.store-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.store-header .section-subtitle {
  margin: 0 auto;
}

/* Filter Bar */
.filter-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-3xl);
  flex-wrap: wrap;
}

.filter-btn {
  padding: 8px 20px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-xl);
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}
.filter-btn:hover {
  border-color: rgba(201, 168, 76, 0.3);
  color: var(--gold-light);
  background: rgba(201, 168, 76, 0.06);
}
.filter-btn.active {
  background: rgba(201, 168, 76, 0.12);
  border-color: var(--gold);
  color: var(--gold);
}
.filter-btn:focus-visible {
  box-shadow: var(--focus-ring);
  border-radius: var(--radius-xl);
}

/* Ebook Grid */
.ebook-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-xl);
}

/* Ebook Card */
.ebook-card {
  background: var(--gradient-card);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-med);
  position: relative;
  contain: layout;
  cursor: pointer;
}

.ebook-card:hover {
  transform: translateY(-8px);
  border-color: rgba(201, 168, 76, 0.2);
  box-shadow: var(--shadow-lg), var(--shadow-gold);
}

.ebook-card-image {
  position: relative;
  width: 100%;
  height: 360px;
  overflow: hidden;
}

.ebook-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.ebook-card:hover .ebook-card-image img {
  transform: scale(1.05);
}

.ebook-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(6,10,20,0.9) 100%);
  opacity: 0;
  transition: opacity var(--transition-med);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: var(--space-xl);
}

.ebook-card:hover .ebook-card-overlay {
  opacity: 1;
}

.ebook-quick-view {
  padding: 10px 24px;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-xl);
  color: var(--white);
  font-size: 0.85rem;
  font-weight: 500;
  transform: translateY(10px);
  transition: transform var(--transition-med), background var(--transition-fast);
}

.ebook-card:hover .ebook-quick-view {
  transform: translateY(0);
}

.ebook-quick-view:focus-visible {
  box-shadow: var(--focus-ring);
  border-radius: var(--radius-xl);
  opacity: 1;
  transform: translateY(0);
}

/* Make overlay visible when quick-view is focused */
.ebook-quick-view:focus-visible ~ .ebook-card-overlay,
.ebook-card:focus-within .ebook-card-overlay {
  opacity: 1;
}

.ebook-card-badge {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  padding: 4px 12px;
  border-radius: var(--radius-xl);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  z-index: 2;
}

.badge-bestseller {
  background: var(--gold);
  color: var(--navy-deep);
}

.badge-new {
  background: var(--teal);
  color: var(--navy-deep);
}

.badge-free {
  background: #22c55e;
  color: var(--navy-deep);
}

.ebook-card-body {
  padding: var(--space-lg);
}

.ebook-category {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--teal);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.ebook-card-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  line-height: 1.3;
}

.ebook-card-author {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: var(--space-sm);
}

.ebook-card-links {
  margin-bottom: var(--space-md);
}

.ebook-preview-link {
  display: inline-flex;
  align-items: center;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--teal-light);
  letter-spacing: 0.5px;
  transition: all var(--transition-fast);
}

.ebook-preview-link:hover {
  color: var(--teal);
  transform: translateX(4px);
}

.ebook-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  border-top: 1px solid rgba(255,255,255,0.06);
}

.ebook-price {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--gold);
}

.ebook-price .original-price {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-decoration: line-through;
  margin-left: var(--space-sm);
  font-weight: 400;
}

.btn-add-cart {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  background: rgba(201, 168, 76, 0.12);
  border: 1px solid rgba(201, 168, 76, 0.25);
  border-radius: var(--radius-xl);
  color: var(--gold);
  font-size: 0.85rem;
  font-weight: 600;
}
.btn-add-cart:hover {
  background: var(--gold);
  color: var(--navy-deep);
  transform: scale(1.05);
}
.btn-add-cart:focus-visible {
  box-shadow: var(--focus-ring);
  border-radius: var(--radius-xl);
}

/* ============================================================
   TESTIMONIALS
   ============================================================ */
.testimonials-section {
  position: relative;
  z-index: 1;
  padding: var(--space-4xl) 0;
}

.testimonials-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.testimonials-header .section-subtitle {
  margin: 0 auto;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.testimonial-card {
  background: var(--gradient-glass);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: all var(--transition-med);
  position: relative;
}

.testimonial-card:hover {
  border-color: rgba(201, 168, 76, 0.15);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.testimonial-card::before {
  content: '"';
  position: absolute;
  top: 16px;
  right: 24px;
  font-family: var(--font-heading);
  font-size: 4rem;
  color: rgba(201, 168, 76, 0.1);
  line-height: 1;
}

.testimonial-stars {
  color: var(--gold);
  font-size: 0.9rem;
  margin-bottom: var(--space-md);
  letter-spacing: 2px;
}

.testimonial-text {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: var(--space-lg);
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: var(--gradient-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--navy-deep);
}

.testimonial-name {
  font-weight: 600;
  font-size: 0.9rem;
  font-style: normal;
}

.testimonial-role {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ============================================================
   NEWSLETTER / CTA SECTION
   ============================================================ */
.newsletter-section {
  position: relative;
  z-index: 1;
  padding: var(--space-4xl) 0;
}

.newsletter-card {
  text-align: center;
  padding: var(--space-4xl);
  background: var(--gradient-glass);
  border: 1px solid rgba(201, 168, 76, 0.15);
  border-radius: var(--radius-xl);
  position: relative;
  overflow: hidden;
}

.newsletter-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(201,168,76,0.06) 0%, transparent 70%);
}

.newsletter-card > * {
  position: relative;
  z-index: 1;
}

.newsletter-card .section-title {
  margin-bottom: var(--space-md);
}

.newsletter-card p {
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto var(--space-2xl);
  line-height: 1.7;
}

.newsletter-form {
  display: flex;
  gap: var(--space-md);
  max-width: 480px;
  margin: 0 auto;
}

.newsletter-input {
  flex: 1;
  padding: 14px 20px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-xl);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: all var(--transition-fast);
}
.newsletter-input::placeholder {
  color: var(--text-muted);
}
.newsletter-input:focus,
.newsletter-input:focus-visible {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(201, 168, 76, 0.1);
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}

.footer-brand {
  max-width: 300px;
}

.footer-brand .nav-logo {
  margin-bottom: var(--space-lg);
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: var(--space-lg);
}

.footer-social {
  display: flex;
  gap: var(--space-md);
}

.footer-social a {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}
.footer-social a:hover {
  background: rgba(201, 168, 76, 0.15);
  border-color: var(--gold);
  color: var(--gold);
  transform: translateY(-2px);
}
.footer-social a:focus-visible {
  box-shadow: var(--focus-ring);
  border-radius: var(--radius-full);
}

.footer-column h4 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-lg);
  color: var(--gold-light);
}

.footer-column ul {
  list-style: none;
}

.footer-column li {
  margin-bottom: var(--space-sm);
}

.footer-column a {
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}
.footer-column a:hover {
  color: var(--gold);
  padding-left: 4px;
}
.footer-column a:focus-visible {
  box-shadow: none;
  outline: 2px solid var(--gold);
  outline-offset: 2px;
  border-radius: 2px;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(255,255,255,0.06);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-bottom a {
  color: var(--gold-dark);
}
.footer-bottom a:hover {
  color: var(--gold);
}

/* ============================================================
   CART SIDEBAR
   ============================================================ */
.cart-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-med);
}
.cart-overlay.active {
  opacity: 1;
  visibility: visible;
}

.cart-sidebar {
  position: fixed;
  top: 0;
  right: 0;
  width: 420px;
  max-width: 90vw;
  height: 100vh;
  background: var(--navy);
  border-left: 1px solid rgba(201, 168, 76, 0.1);
  z-index: 2001;
  transform: translateX(100%);
  transition: transform var(--transition-med);
  display: flex;
  flex-direction: column;
}
.cart-sidebar.active {
  transform: translateX(0);
}

.cart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-xl);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.cart-header h3 {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 600;
}

.cart-close {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 1.2rem;
}
.cart-close:hover {
  background: rgba(255,255,255,0.1);
  color: var(--text-primary);
}
.cart-close:focus-visible {
  box-shadow: var(--focus-ring);
  border-radius: var(--radius-full);
}

.cart-items {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-lg);
}

.cart-empty {
  text-align: center;
  padding: var(--space-3xl) var(--space-xl);
  color: var(--text-muted);
}

.cart-empty-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
  opacity: 0.3;
}

.cart-empty-sub {
  font-size: 0.8rem;
  margin-top: 0.5rem;
}

.cart-item {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-md);
  background: rgba(255,255,255,0.03);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  border: 1px solid rgba(255,255,255,0.04);
}

.cart-item-img {
  width: 60px;
  height: 80px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
}

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

.cart-item-info {
  flex: 1;
}

.cart-item-title {
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 4px;
}

.cart-item-price {
  color: var(--gold);
  font-weight: 600;
  font-size: 0.9rem;
}

.cart-item-remove {
  background: none;
  color: var(--text-muted);
  font-size: 0.8rem;
  padding: 4px;
  align-self: flex-start;
}
.cart-item-remove:hover {
  color: #ef4444;
}
.cart-item-remove:focus-visible {
  box-shadow: 0 0 0 2px #ef4444;
  border-radius: var(--radius-sm);
}

.cart-footer {
  padding: var(--space-xl);
  border-top: 1px solid rgba(255,255,255,0.06);
}

.cart-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-lg);
}

.cart-total-label {
  font-size: 1rem;
  color: var(--text-secondary);
}

.cart-total-price {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gold);
}

.btn-checkout {
  width: 100%;
  padding: 16px;
  background: var(--gradient-gold);
  color: var(--navy-deep);
  font-weight: 700;
  font-size: 1rem;
  border-radius: var(--radius-xl);
  text-align: center;
  box-shadow: var(--shadow-gold);
}
.btn-checkout:hover {
  box-shadow: 0 8px 40px rgba(201, 168, 76, 0.4);
  transform: translateY(-2px);
}
.btn-checkout:focus-visible {
  box-shadow: var(--focus-ring), var(--shadow-gold);
  border-radius: var(--radius-xl);
}

/* ============================================================
   QUICK VIEW MODAL
   ============================================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  z-index: 3000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-med);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
}
.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: var(--navy);
  border: 1px solid rgba(201, 168, 76, 0.15);
  border-radius: var(--radius-xl);
  max-width: 800px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  transform: scale(0.9) translateY(20px);
  transition: transform var(--transition-med);
}
.modal-overlay.active .modal-content {
  transform: scale(1) translateY(0);
}

.modal-image {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-xl) 0 0 var(--radius-xl);
}

.modal-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 400px;
}

.modal-body {
  padding: var(--space-2xl);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.modal-close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(10px);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  z-index: 1;
}
.modal-close:focus-visible {
  box-shadow: var(--focus-ring);
  border-radius: var(--radius-full);
}

.modal-category {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--teal);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.modal-title {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
  line-height: 1.2;
}

.modal-author {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: var(--space-lg);
}

.modal-description {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: var(--space-xl);
}

.modal-price {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: var(--space-xl);
}

.modal-price .original-price {
  font-size: 1rem;
  color: var(--text-muted);
  text-decoration: line-through;
  margin-left: var(--space-sm);
  font-weight: 400;
}

.modal-actions {
  display: flex;
  gap: var(--space-md);
}

.modal-actions .btn-primary {
  flex: 1;
  justify-content: center;
}

/* Toast */
.toast-container {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  z-index: 5000;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.toast {
  padding: var(--space-md) var(--space-xl);
  background: var(--navy-surface);
  border: 1px solid rgba(201, 168, 76, 0.2);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.9rem;
  box-shadow: var(--shadow-lg);
  transform: translateX(120%);
  transition: transform var(--transition-med);
  display: flex;
  align-items: center;
  gap: var(--space-md);
}
.toast.show {
  transform: translateX(0);
}

.toast-icon {
  color: var(--gold);
  font-size: 1.1rem;
}

/* ============================================================
   PREFERS REDUCED MOTION (WCAG 2.1 / Core Web Vitals)
   Disables all non-essential animations for users who prefer it.
   ============================================================ */
@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;
  }

  .bg-orbs .orb {
    opacity: 0.08;
    animation: none;
  }

  .particle {
    display: none;
  }

  .hero-book-main,
  .hero-book-secondary {
    animation: none;
    transform: none;
  }

  .fade-in {
    opacity: 1;
    transform: none;
  }

  .hero-badge {
    animation: none;
  }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-content {
    max-width: 100%;
  }
  .hero-description {
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
  }
  .hero-cta {
    justify-content: center;
  }
  .hero-stats {
    justify-content: center;
  }
  .hero-visual {
    height: 400px;
  }
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
  }
  .modal-content {
    grid-template-columns: 1fr;
  }
  .modal-image {
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    max-height: 300px;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--nav-scrolled-bg);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--space-xl);
    border-bottom: 1px solid rgba(201, 168, 76, 0.1);
    gap: var(--space-lg);
  }
  .nav-links.active {
    display: flex;
  }
  .nav-toggle {
    display: flex;
  }

  .hero-book-showcase {
    width: 240px;
    height: 320px;
  }
  .hero-book-secondary {
    width: 110px;
    height: 150px;
  }

  .free-ebook-card {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .free-ebook-image {
    margin: 0 auto;
    transform: none;
  }
  .free-ebook-features {
    justify-content: center;
  }

  .ebook-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }

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

  .newsletter-form {
    flex-direction: column;
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }

  .hero-stats {
    flex-direction: column;
    gap: var(--space-lg);
    align-items: center;
  }

  .theme-toggle-btn .theme-toggle-text {
    display: none;
  }
  .theme-toggle-btn {
    padding: var(--space-sm);
  }
}

/* ============================================================
   AUTH & CHECKOUT & ACCOUNT STYLES
   ============================================================ */

/* Navbar Auth Button */
.btn-auth {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-xl);
  color: var(--text-primary);
  font-weight: 500;
  font-size: 0.9rem;
}
.btn-auth:hover {
  background: rgba(201, 168, 76, 0.15);
  border-color: rgba(201, 168, 76, 0.3);
  color: var(--gold-light);
  transform: translateY(-1px);
}

/* User Profile Dropdown */
.user-menu-container {
  position: relative;
  display: inline-block;
}
.user-menu-trigger {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 6px 14px;
  border-radius: var(--radius-xl);
  cursor: pointer;
  color: var(--text-primary);
  transition: all var(--transition-fast);
}
.user-menu-trigger:hover, .user-menu-trigger.active {
  background: rgba(201, 168, 76, 0.1);
  border-color: rgba(201, 168, 76, 0.3);
}
.user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--gradient-gold);
  color: var(--navy-deepest);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  overflow: hidden;
}
.user-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.user-name-abbr {
  font-size: 0.85rem;
  font-weight: 600;
}
.user-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  width: 220px;
  background: var(--navy-light);
  border: 1px solid rgba(201, 168, 76, 0.15);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--space-sm) 0;
  display: none;
  z-index: 1100;
  transform: translateY(10px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  opacity: 0;
}
.user-dropdown.show {
  display: block;
  transform: translateY(0);
  opacity: 1;
}
.dropdown-header {
  padding: var(--space-sm) var(--space-lg);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  margin-bottom: var(--space-sm);
  text-align: left;
}
.dropdown-user-name {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.95rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.dropdown-user-email {
  font-size: 0.8rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  color: var(--text-secondary);
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: left;
}
.dropdown-item:hover {
  background: rgba(255, 255, 255, 0.03);
  color: var(--gold-light);
  padding-left: calc(var(--space-lg) + 4px);
}
.dropdown-item.signout-item {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  margin-top: var(--space-sm);
}
.dropdown-item.signout-item:hover {
  color: #ef4444;
}

/* Auth Modal Content */
.auth-modal-card {
  width: 100%;
  max-width: 440px;
  background: var(--navy-light);
  border: 1px solid rgba(201, 168, 76, 0.15);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  position: relative;
  z-index: 1050;
  margin: auto;
  
  /* Prevent cutting off on short screens */
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.auth-header {
  display: flex;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  background: rgba(0, 0, 0, 0.15);
}
.auth-tab {
  flex: 1;
  padding: var(--space-lg) 0;
  text-align: center;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: transparent;
  border: none;
  cursor: pointer;
  position: relative;
  transition: color var(--transition-fast);
}
.auth-tab:hover {
  color: var(--text-primary);
}
.auth-tab.active {
  color: var(--gold-light);
}
.auth-tab.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 20%;
  right: 20%;
  height: 3px;
  background: var(--gradient-gold);
  border-radius: 3px 3px 0 0;
}
.auth-body {
  padding: var(--space-xl);
  overflow-y: auto;
  flex: 1;
}

/* Optimize spacing for short screens */
@media (max-height: 650px) {
  .auth-body {
    padding: var(--space-lg);
  }
  .auth-form.active {
    gap: var(--space-md);
  }
}
.auth-form {
  display: none;
}
.auth-form.active {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  text-align: left;
}
.form-group label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
}
.form-control {
  background: rgba(6, 10, 20, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}
.form-control:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 2px rgba(201, 168, 76, 0.15);
  outline: none;
}
.auth-divider {
  display: flex;
  align-items: center;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.8rem;
  margin: var(--space-md) 0;
}
.auth-divider::before, .auth-divider::after {
  content: '';
  flex: 1;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}
.auth-divider:not(:empty)::before {
  margin-right: .5em;
}
.auth-divider:not(:empty)::after {
  margin-left: .5em;
}
.btn-google {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  background: var(--white);
  color: #1f2a4a;
  border: none;
  border-radius: var(--radius-md);
  padding: var(--space-md);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background var(--transition-fast);
}
.btn-google:hover {
  background: #f1f1f1;
}
.btn-google svg {
  width: 18px;
  height: 18px;
}
.auth-close {
  position: absolute;
  top: 15px;
  right: 15px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.1rem;
  cursor: pointer;
  z-index: 10;
}
.auth-close:hover {
  color: var(--text-primary);
}

/* Checkout Modal */
.checkout-modal-card {
  width: 95%;
  max-width: 700px;
  background: var(--navy-light);
  border: 1px solid rgba(201, 168, 76, 0.15);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  position: relative;
  z-index: 1050;
  margin: auto;
  display: flex;
  flex-direction: column;
  max-height: 90vh;
}
.checkout-modal-header {
  padding: var(--space-lg) var(--space-xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(0, 0, 0, 0.15);
}
.checkout-modal-title {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--gold-light);
}
.checkout-modal-body {
  padding: var(--space-xl);
  overflow-y: auto;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-xl);
}
@media (max-width: 600px) {
  .checkout-modal-body {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    padding: var(--space-lg);
  }
}
.checkout-order-summary {
  border-right: 1px solid rgba(255, 255, 255, 0.05);
  padding-right: var(--space-lg);
  text-align: left;
}
@media (max-width: 600px) {
  .checkout-order-summary {
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-right: 0;
    padding-bottom: var(--space-lg);
  }
}
.checkout-items-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-top: var(--space-md);
  max-height: 200px;
  overflow-y: auto;
}
.checkout-item-row {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-sm);
}
.checkout-item-thumb {
  width: 45px;
  height: 60px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
}
.checkout-item-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.checkout-item-details {
  flex: 1;
  text-align: left;
}
.checkout-item-title {
  font-size: 0.85rem;
  font-weight: 500;
  line-height: 1.3;
  color: var(--text-primary);
}
.checkout-item-price {
  font-size: 0.8rem;
  color: var(--gold);
}
.checkout-total-row {
  display: flex;
  justify-content: space-between;
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-weight: 600;
}
.checkout-total-label {
  color: var(--text-secondary);
}
.checkout-total-amount {
  color: var(--gold-light);
  font-size: 1.15rem;
}

/* Payment Methods Form */
.checkout-payment-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  text-align: left;
}
.payment-tabs {
  display: flex;
  gap: var(--space-sm);
  background: rgba(6, 10, 20, 0.3);
  padding: 4px;
  border-radius: var(--radius-md);
}
.payment-tab {
  flex: 1;
  padding: var(--space-sm);
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.payment-tab.active {
  background: var(--navy-surface);
  color: var(--gold-light);
  box-shadow: var(--shadow-sm);
}
.payment-content-pane {
  display: none;
  flex-direction: column;
  gap: var(--space-md);
}
.payment-content-pane.active {
  display: flex;
}
.upi-qr-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  background: rgba(255, 255, 255, 0.03);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  border: 1px dashed rgba(201, 168, 76, 0.2);
}
.upi-qr-image {
  background: white;
  padding: 8px;
  border-radius: var(--radius-sm);
  width: 150px;
  height: 150px;
}
.upi-qr-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.upi-address {
  font-family: monospace;
  color: var(--gold-light);
  font-size: 0.85rem;
  background: rgba(0, 0, 0, 0.2);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  margin-top: 4px;
  word-break: break-all;
}
.upi-instructions {
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-align: center;
  line-height: 1.4;
}

/* User Dashboard / Order History Section */
.account-section {
  padding: var(--space-4xl) 0;
  background: linear-gradient(180deg, #060a14 0%, var(--navy-deep) 100%);
  position: relative;
  display: none; /* Shown dynamically when active */
}
.account-section.active {
  display: block;
}
.account-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-3xl);
  text-align: left;
}
@media (max-width: 768px) {
  .account-grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }
}
.account-sidebar {
  background: var(--navy-light);
  border: 1px solid rgba(201, 168, 76, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  height: fit-content;
}
.account-avatar-large {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--gradient-gold);
  color: var(--navy-deepest);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 2.2rem;
  margin-bottom: var(--space-md);
  border: 3px solid rgba(201, 168, 76, 0.2);
  overflow: hidden;
}
.account-avatar-large img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.account-user-name {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: var(--space-sm);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}
.account-user-email {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}
.account-nav {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
.account-nav-btn {
  width: 100%;
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: transparent;
  color: var(--text-secondary);
  border: none;
  border-radius: var(--radius-md);
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.account-nav-btn:hover, .account-nav-btn.active {
  background: rgba(201, 168, 76, 0.1);
  color: var(--gold-light);
}
.account-nav-btn.active {
  border-left: 3px solid var(--gold);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.account-content {
  background: var(--navy-light);
  border: 1px solid rgba(201, 168, 76, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
}
@media (max-width: 600px) {
  .account-content {
    padding: var(--space-xl);
  }
}
.account-panel {
  display: none;
}
.account-panel.active {
  display: block;
}
.panel-title {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--gold-light);
  margin-bottom: var(--space-xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding-bottom: var(--space-sm);
}

.orders-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}
.order-card {
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: rgba(0, 0, 0, 0.1);
}
.order-card-header {
  background: rgba(255, 255, 255, 0.02);
  padding: var(--space-md) var(--space-lg);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.85rem;
}
.order-header-group {
  display: flex;
  gap: var(--space-xl);
}
.order-meta-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.order-meta-label {
  color: var(--text-muted);
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.5px;
}
.order-meta-val {
  font-weight: 500;
  color: var(--text-secondary);
}
.order-meta-val.order-status {
  background: rgba(34, 197, 94, 0.1);
  color: #22c55e;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  width: fit-content;
}
.order-meta-val.order-status.pending {
  background: rgba(234, 179, 8, 0.1);
  color: #eab308;
}
.order-id {
  font-family: monospace;
  color: var(--text-muted);
}
.order-card-body {
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}
.order-item-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
  padding-bottom: var(--space-sm);
}
.order-item-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.order-item-info {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  text-align: left;
}
.order-item-title {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.95rem;
}
.order-item-download-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 6px 14px;
  background: rgba(58, 181, 176, 0.1);
  border: 1px solid rgba(58, 181, 176, 0.2);
  border-radius: var(--radius-xl);
  color: var(--teal-light);
  font-size: 0.85rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}
.order-item-download-btn:hover {
  background: rgba(58, 181, 176, 0.2);
  border-color: rgba(58, 181, 176, 0.4);
  transform: translateY(-1px);
}
.orders-empty {
  padding: var(--space-3xl) 0;
  text-align: center;
  color: var(--text-secondary);
}
.orders-empty-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
  opacity: 0.5;
}

.theme-toggle-btn {
  background: rgba(201, 168, 76, 0.1);
  border: 1px solid rgba(201, 168, 76, 0.2);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-xl);
  color: var(--gold);
  font-size: 0.9rem;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.theme-toggle-btn:hover {
  background: rgba(201, 168, 76, 0.2);
  border-color: rgba(201, 168, 76, 0.4);
  transform: translateY(-1px);
}

.theme-toggle-btn:focus-visible {
  box-shadow: var(--focus-ring);
  border-radius: var(--radius-xl);
}

.theme-toggle-btn svg {
  display: none;
  flex-shrink: 0;
  stroke: currentColor;
}

/* Light / Dark icon visibility */
:root[data-theme="dark"] .theme-toggle-btn .theme-icon-moon {
  display: block;
}

:root[data-theme="light"] .theme-toggle-btn .theme-icon-sun {
  display: block;
}

/* ============================================================
   LIGHT THEME — Component Overrides
   Uses only logo-derived colors: navy, gold, teal
   ============================================================ */
[data-theme="light"] body {
  background: radial-gradient(circle at 50% 0%, #ffffff 0%, #fdfbf7 70%, #f4eee2 100%);
  color: var(--text-primary);
}

/* Scrollbar — light */
[data-theme="light"] html {
  scrollbar-color: var(--gold) var(--bg-surface);
}
[data-theme="light"] ::-webkit-scrollbar-track {
  background: var(--bg-surface);
}
[data-theme="light"] ::-webkit-scrollbar-thumb {
  background: var(--gold-dark);
}
[data-theme="light"] ::-webkit-scrollbar-thumb:hover {
  background: var(--gold);
}

/* Orbs — dynamic floating glows in light theme using logo colors */
[data-theme="light"] .bg-orbs .orb {
  opacity: 0.15;
  filter: blur(80px);
}
[data-theme="light"] .bg-orbs .orb.orb-animated {
  opacity: 0.15;
}

/* Navbar */
[data-theme="light"] .navbar.scrolled {
  background: rgba(253, 251, 247, 0.82);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom-color: rgba(201, 168, 76, 0.15);
}

/* Nav cart */
[data-theme="light"] .nav-cart {
  background: rgba(201, 168, 76, 0.08);
  border-color: rgba(201, 168, 76, 0.2);
}
[data-theme="light"] .nav-cart:hover {
  background: rgba(201, 168, 76, 0.15);
  border-color: rgba(201, 168, 76, 0.35);
}

/* Auth button */
[data-theme="light"] .btn-auth {
  background: rgba(201, 168, 76, 0.08);
  border-color: rgba(201, 168, 76, 0.2);
  color: var(--text-primary);
}
[data-theme="light"] .btn-auth:hover {
  background: rgba(201, 168, 76, 0.15);
  border-color: rgba(201, 168, 76, 0.35);
  color: var(--gold-dark);
}

/* Particles — enabled and soft in light theme */
[data-theme="light"] .particle {
  background: var(--gold-dark);
}

/* Hero section */
[data-theme="light"] .hero-badge {
  background: rgba(201, 168, 76, 0.1);
  border-color: rgba(201, 168, 76, 0.25);
  color: var(--gold-dark);
}

[data-theme="light"] .hero-stats {
  border-top-color: rgba(201, 168, 76, 0.15);
}

[data-theme="light"] .btn-secondary {
  border-color: rgba(31, 42, 74, 0.2);
  color: var(--text-primary);
}
[data-theme="light"] .btn-secondary:hover {
  border-color: var(--teal);
  color: var(--white);
  background: var(--gradient-teal);
  box-shadow: var(--shadow-teal);
}

/* Gold Text Contrast Enhancement for Light Theme */
[data-theme="light"] .gold-text {
  background: linear-gradient(135deg, #785c21 0%, #a27e2a 50%, #785c21 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Ebook card with premium glassmorphism and pointer cursor */
[data-theme="light"] .ebook-card {
  border-color: rgba(201, 168, 76, 0.12);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
[data-theme="light"] .ebook-card:hover {
  border-color: rgba(201, 168, 76, 0.3);
  box-shadow: var(--shadow-lg), var(--shadow-gold);
}
[data-theme="light"] .ebook-card-footer {
  border-top-color: rgba(201, 168, 76, 0.1);
}

/* Make book images pop and slide smoothly on hover in light mode */
[data-theme="light"] .ebook-card-image img {
  filter: contrast(1.03) saturate(1.05); /* Slight contrast and saturation boost for crispness */
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), filter 0.4s ease;
}
[data-theme="light"] .ebook-card:hover .ebook-card-image img {
  transform: scale(1.08) translateY(-4px); /* Interactive lift and zoom */
}

/* Light Theme glassmorphic hover overlay - warm ivory rather than generic black */
[data-theme="light"] .ebook-card-overlay {
  background: linear-gradient(180deg, transparent 25%, rgba(253, 251, 247, 0.95) 100%);
}

/* Lighter, beautiful gold-glass button for Quick View in Light mode */
[data-theme="light"] .ebook-quick-view {
  background: rgba(253, 251, 247, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(201, 168, 76, 0.25);
  color: var(--gold-dark);
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(138, 109, 43, 0.08);
}
[data-theme="light"] .ebook-quick-view:hover {
  background: var(--gold-dark);
  color: var(--white);
  border-color: var(--gold-dark);
  box-shadow: 0 6px 16px rgba(138, 109, 43, 0.2);
}

/* Filter bar */
[data-theme="light"] .filter-btn {
  background: rgba(201, 168, 76, 0.04);
  border-color: rgba(201, 168, 76, 0.12);
  color: var(--text-secondary);
}
[data-theme="light"] .filter-btn:hover {
  background: rgba(201, 168, 76, 0.08);
  border-color: rgba(201, 168, 76, 0.25);
  color: var(--gold-dark);
}
[data-theme="light"] .filter-btn.active {
  background: rgba(201, 168, 76, 0.12);
  border-color: var(--gold);
  color: var(--gold-dark);
}

/* Free ebook section glassmorphism */
[data-theme="light"] .free-ebook-card {
  background: var(--gradient-glass);
  border-color: rgba(58, 181, 176, 0.25);
  box-shadow: var(--shadow-md), var(--shadow-teal);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
[data-theme="light"] .feature-tag {
  color: var(--teal-dark);
  background: rgba(58, 181, 176, 0.08);
  border-color: rgba(58, 181, 176, 0.15);
}

/* Testimonial card glassmorphism */
[data-theme="light"] .testimonial-card {
  background: var(--gradient-glass);
  border-color: rgba(201, 168, 76, 0.12);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
[data-theme="light"] .testimonial-card:hover {
  border-color: rgba(201, 168, 76, 0.25);
  box-shadow: var(--shadow-md), var(--shadow-gold);
}
[data-theme="light"] .testimonial-card::before {
  color: rgba(201, 168, 76, 0.15);
}

/* Newsletter glassmorphism */
[data-theme="light"] .newsletter-card {
  background: var(--gradient-glass);
  border-color: rgba(201, 168, 76, 0.22);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
[data-theme="light"] .newsletter-input {
  background: rgba(255, 255, 255, 0.6);
  border-color: rgba(201, 168, 76, 0.25);
  color: var(--text-primary);
}
[data-theme="light"] .newsletter-input::placeholder {
  color: var(--text-muted);
}

/* Footer */
[data-theme="light"] .site-footer {
  border-top-color: rgba(201, 168, 76, 0.15);
}
[data-theme="light"] .footer-social a {
  background: rgba(201, 168, 76, 0.06);
  border-color: rgba(201, 168, 76, 0.12);
  color: var(--text-secondary);
}
[data-theme="light"] .footer-social a:hover {
  background: rgba(201, 168, 76, 0.15);
  border-color: var(--gold);
  color: var(--gold-dark);
}
[data-theme="light"] .footer-bottom {
  border-top-color: rgba(201, 168, 76, 0.12);
}

/* Cart sidebar glassmorphism */
[data-theme="light"] .cart-sidebar {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(25px);
  -webkit-backdrop-filter: blur(25px);
  border-left-color: rgba(201, 168, 76, 0.15);
}
[data-theme="light"] .cart-header {
  border-bottom-color: rgba(201, 168, 76, 0.1);
}
[data-theme="light"] .cart-item {
  background: rgba(201, 168, 76, 0.04);
  border-color: rgba(201, 168, 76, 0.08);
}
[data-theme="light"] .cart-footer {
  border-top-color: rgba(201, 168, 76, 0.1);
}

/* Modal glassmorphism */
[data-theme="light"] .modal-content {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(25px);
  -webkit-backdrop-filter: blur(25px);
  border-color: rgba(201, 168, 76, 0.2);
}
[data-theme="light"] .modal-close {
  background: rgba(6, 10, 20, 0.8);
  color: white;
}

/* Auth modal */
[data-theme="light"] .auth-modal-card {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(25px);
  -webkit-backdrop-filter: blur(25px);
  border-color: rgba(201, 168, 76, 0.2);
}
[data-theme="light"] .auth-header {
  background: rgba(201, 168, 76, 0.04);
  border-bottom-color: rgba(201, 168, 76, 0.1);
}
[data-theme="light"] .form-control {
  background: rgba(255, 255, 255, 0.6);
  border-color: rgba(201, 168, 76, 0.2);
  color: var(--text-primary);
}
[data-theme="light"] .auth-divider::before,
[data-theme="light"] .auth-divider::after {
  border-bottom-color: rgba(201, 168, 76, 0.12);
}

/* Checkout modal */
[data-theme="light"] .checkout-modal-card {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(25px);
  -webkit-backdrop-filter: blur(25px);
  border-color: rgba(201, 168, 76, 0.2);
}
[data-theme="light"] .checkout-modal-header {
  background: rgba(201, 168, 76, 0.04);
  border-bottom-color: rgba(201, 168, 76, 0.1);
}
[data-theme="light"] .checkout-order-summary {
  border-right-color: rgba(201, 168, 76, 0.15);
}
[data-theme="light"] .payment-tabs {
  background: rgba(201, 168, 76, 0.06);
}
[data-theme="light"] .payment-tab.active {
  background: var(--bg-element);
  color: var(--gold-dark);
}
[data-theme="light"] .upi-qr-container {
  background: rgba(201, 168, 76, 0.04);
  border-color: rgba(201, 168, 76, 0.2);
}

/* Toast — light */
[data-theme="light"] .toast {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-color: rgba(201, 168, 76, 0.2);
  box-shadow: var(--shadow-md);
  color: var(--text-primary);
}

/* User dropdown */
[data-theme="light"] .user-dropdown {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-color: rgba(201, 168, 76, 0.2);
}
[data-theme="light"] .dropdown-header {
  border-bottom-color: rgba(201, 168, 76, 0.1);
}
[data-theme="light"] .dropdown-item:hover {
  background: rgba(201, 168, 76, 0.06);
  color: var(--gold-dark);
}

/* Account section */
[data-theme="light"] .account-section {
  background: linear-gradient(180deg, var(--bg-main) 0%, var(--bg-surface) 100%);
}
[data-theme="light"] .account-sidebar {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-color: rgba(201, 168, 76, 0.15);
}
[data-theme="light"] .account-content {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-color: rgba(201, 168, 76, 0.15);
}
[data-theme="light"] .account-nav-btn:hover,
[data-theme="light"] .account-nav-btn.active {
  background: rgba(201, 168, 76, 0.08);
  color: var(--gold-dark);
}
[data-theme="light"] .order-card {
  border-color: rgba(201, 168, 76, 0.1);
  background: rgba(201, 168, 76, 0.02);
}
[data-theme="light"] .order-card-header {
  background: rgba(201, 168, 76, 0.04);
  border-bottom-color: rgba(201, 168, 76, 0.08);
}
[data-theme="light"] .order-item-row {
  border-bottom-color: rgba(201, 168, 76, 0.06);
}

/* Theme toggle */
[data-theme="light"] .theme-toggle-btn {
  background: rgba(201, 168, 76, 0.08);
  border-color: rgba(201, 168, 76, 0.2);
  color: var(--gold-dark);
}
[data-theme="light"] .theme-toggle-btn:hover {
  background: rgba(201, 168, 76, 0.18);
}

/* Read Now CTA Buttons */
.btn-read-now {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 10px 20px;
  background: var(--gradient-teal);
  color: var(--navy-deep);
  font-weight: 600;
  font-size: 0.85rem;
  border-radius: var(--radius-xl);
  transition: all var(--transition-fast);
  border: 1px solid var(--teal);
  cursor: pointer;
}
.btn-read-now:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-teal);
}
[data-theme="light"] .btn-read-now {
  background: var(--gradient-teal);
  color: var(--navy-deepest);
  border-color: var(--teal);
}

/* Spinner Animation for payment verification */
@keyframes spin {
  to { transform: rotate(360deg); }
}
.spinner-btn {
  display: inline-block;
  width: 1rem;
  height: 1rem;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: spin 0.75s linear infinite;
  margin-right: 8px;
  vertical-align: text-bottom;
}

/* ============================================================
   PAGE TRANSITION OVERLAY
   Smooth fade-out before window.location.href navigation
   ============================================================ */
#page-transition {
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: var(--bg-main);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: opacity;
}
#page-transition.active {
  opacity: 1;
  pointer-events: all;
}

/* ============================================================
   SECTION VISIBILITY — smooth fade instead of display:none
   Used by showDashboard() to avoid flickering flash
   ============================================================ */
main > section {
  transition: opacity 0.35s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: opacity, transform;
}

main > section.section-hidden {
  opacity: 0;
  pointer-events: none;
  position: absolute;
  visibility: hidden;
  height: 0;
  overflow: hidden;
  padding: 0;
  margin: 0;
}

.account-section {
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.account-section.active {
  opacity: 1;
  visibility: visible;
}

/* ============================================================
   PREFERS-REDUCED-MOTION — Accessibility guard
   Disables all non-essential animations for users who prefer it
   ============================================================ */
@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;
  }

  .bg-orbs .orb {
    animation: none !important;
  }

  .hero-book-main,
  .hero-book-secondary {
    animation: none !important;
  }

  .particle {
    animation: none !important;
    opacity: 0 !important;
  }

  .fade-in {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  #page-transition {
    transition: none !important;
  }
}