/* ==========================================================================
   SnehVeda (स्नेहवेद) - Master E-Book Table of Contents (Home Page)
   Luxury Dark Botanical Theme | Maximum Polish, Fluid Animation & Clarity
   ========================================================================== */

:root {
  /* Color Tokens - Pure Black Luxury Aesthetic */
  --bg-body: #000000;
  --bg-surface: #000000;
  --bg-surface-alt: #060606;
  --bg-surface-soft: #0A0A0A;
  --bg-card-subtle: #000000;
  --bg-highlight: #0D0D0D;

  --text-primary: #EDE8DF;
  --text-secondary: #BAC8BF;
  --text-muted: #83978D;
  --text-light: #64796F;

  --accent-forest: #4A8366;
  --accent-forest-hover: #5B9B7A;
  --accent-forest-soft: rgba(74, 131, 102, 0.18);

  --accent-sage: #6E9F88;
  --accent-sage-soft: #08120D;
  --accent-sage-border: rgba(110, 159, 136, 0.28);

  --accent-terracotta: #E27B4D;
  --accent-terracotta-hover: #F28E62;
  --accent-terracotta-soft: rgba(226, 123, 77, 0.18);
  --accent-terracotta-border: rgba(226, 123, 77, 0.32);

  --accent-gold: #CFA664;
  --accent-gold-soft: #14120B;
  --accent-gold-border: rgba(207, 166, 100, 0.32);

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.14);
  --border-card: rgba(255, 255, 255, 0.1);

  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.7);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.85);
  --shadow-hover: 0 12px 36px rgba(0, 0, 0, 0.8);

  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-full: 9999px;

  --font-serif: 'Rozha One', 'Playfair Display', Georgia, serif;
  --font-display: 'Playfair Display', 'Rozha One', Georgia, serif;
  --font-sans: 'Plus Jakarta Sans', 'Noto Sans Devanagari', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  --container-max: 920px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  background-color: #000000;
  overflow-x: hidden;
}

body {
  background-color: #000000;
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.7;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

a {
  text-decoration: none;
  color: inherit;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  width: 100%;
  height: 74px;
  background-color: rgba(0, 0, 0, 0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 1000;
}

.header-container {
  max-width: var(--container-max);
  height: 100%;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.brand-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, #1F3C2C, #2E5640);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #EDE8DF;
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.15;
}

.brand-tagline {
  font-size: 0.725rem;
  color: var(--accent-terracotta);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.header-badge {
  padding: 0.35rem 0.85rem;
  background: var(--bg-surface-soft);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-gold);
}

/* Main Container */
.home-container {
  max-width: var(--container-max);
  margin: 3rem auto 6rem auto;
  padding: 0 1.5rem;
}

/* Hero Intro */
.home-hero {
  text-align: center;
  margin-bottom: 3.5rem;
}

.home-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 1.1rem;
  background: var(--accent-forest-soft);
  border: 1px solid var(--accent-sage-border);
  border-radius: var(--radius-full);
  font-size: 0.825rem;
  font-weight: 700;
  color: var(--accent-sage);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 1.25rem;
}

.home-title {
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, #EDE8DF 0%, #6EBD8E 22%, #388E5C 48%, #A8E6CF 75%, #EDE8DF 100%);
  background-size: 250% 250%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
  animation: botanicalGreenShimmer 5s ease-in-out infinite alternate;
  text-shadow: 0 0 30px rgba(110, 189, 142, 0.15);
}

@keyframes botanicalGreenShimmer {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.home-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto 2rem auto;
}

/* Quick Stats Bar & Live Running 3-Color Borders */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.15rem;
  margin: 2.2rem 0 3.5rem 0;
}

.stat-box {
  position: relative;
  border-radius: var(--radius-md);
  padding: 2px; /* Full perimeter live border wrapper */
  background: linear-gradient(125deg, var(--sb-c1, #2E6F4D) 0%, var(--sb-c2, #6EBD8E) 40%, var(--sb-c3, #A3E8C1) 70%, var(--sb-c1, #2E6F4D) 100%);
  background-size: 250% 250%;
  animation: liveStatBorderFlow 6s ease-in-out infinite alternate;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.65);
  transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.28s ease;
}

@keyframes liveStatBorderFlow {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.stat-box:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 12px 28px var(--sb-shadow, rgba(74, 158, 114, 0.4)), 0 2px 10px rgba(0, 0, 0, 0.8);
  animation-duration: 3.5s;
}

.stat-box-inner {
  background: #000000;
  border-radius: calc(var(--radius-md) - 2px);
  padding: 1.35rem 1rem;
  text-align: center;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease;
}

.stat-box:hover .stat-box-inner {
  background: #060606;
}

.stat-num {
  font-family: var(--font-display);
  font-size: 1.85rem;
  font-weight: 800;
  margin-bottom: 0.35rem;
  background: linear-gradient(135deg, var(--sb-num-1, #EDE8DF), var(--sb-num-2, #E27B4D));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: var(--sb-num-2, #E27B4D);
  filter: drop-shadow(0 2px 10px var(--sb-shadow, rgba(0, 0, 0, 0.5)));
  transition: transform 0.25s ease;
}

.stat-box:hover .stat-num {
  transform: scale(1.08);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
  line-height: 1.4;
}

/* 3 Separate Distinct Border & Number Color Themes */

/* Box 1: Botanical Emerald Green (28 विस्तृत अध्याय) */
.stat-box.stat-box-1, .stat-box:nth-child(1) {
  --sb-c1: #2E6F4D;
  --sb-c2: #6EBD8E;
  --sb-c3: #A3E8C1;
  --sb-num-1: #D6F8E5;
  --sb-num-2: #6EBD8E;
  --sb-shadow: rgba(74, 158, 114, 0.45);
}

/* Box 2: Ayurvedic Terracotta Coral (100% आयुर्वेदिक व वैज्ञानिक दृष्टिकोण) */
.stat-box.stat-box-2, .stat-box:nth-child(2) {
  --sb-c1: #B85527;
  --sb-c2: #E27B4D;
  --sb-c3: #FFAB80;
  --sb-num-1: #FFE5D9;
  --sb-num-2: #E27B4D;
  --sb-shadow: rgba(226, 123, 77, 0.45);
}

/* Box 3: Royal Saffron & Imperial Gold (28 अध्याय अभी लाइव) */
.stat-box.stat-box-3, .stat-box:nth-child(3) {
  --sb-c1: #A17424;
  --sb-c2: #D4A047;
  --sb-c3: #FDE69E;
  --sb-num-1: #FFF3D6;
  --sb-num-2: #D4A047;
  --sb-shadow: rgba(212, 160, 71, 0.45);
}

/* Search / Filter Bar & Live Running Gradient Border */
.search-wrapper {
  margin-bottom: 2.75rem;
  position: relative;
  border-radius: var(--radius-md);
  padding: 2px; /* Full perimeter live border wrapper */
  background: linear-gradient(125deg, #2E6F4D 0%, #6EBD8E 25%, #E27B4D 50%, #D4A047 75%, #2E6F4D 100%);
  background-size: 300% 300%;
  animation: liveSearchBorderFlow 7s ease-in-out infinite alternate;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.7);
  transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.28s ease;
}

@keyframes liveSearchBorderFlow {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.search-wrapper:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(110, 189, 142, 0.28), 0 2px 10px rgba(0, 0, 0, 0.8);
  animation-duration: 4s;
}

.search-wrapper:focus-within {
  transform: translateY(-3px) scale(1.008);
  box-shadow: 0 10px 36px rgba(110, 189, 142, 0.4), 0 2px 10px rgba(0, 0, 0, 0.9);
  animation-duration: 3s;
}

.search-input-box {
  width: 100%;
  padding: 1.15rem 1.6rem;
  background: #000000;
  border: none;
  border-radius: calc(var(--radius-md) - 2px);
  color: var(--text-primary);
  font-size: 1.05rem;
  outline: none;
  transition: background 0.25s ease, color 0.25s ease;
  display: block;
}

.search-input-box:focus {
  background: #050505;
}

.search-input-box::placeholder {
  color: var(--text-muted);
}

/* Index Section Header */
.index-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
}

.index-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.index-count {
  font-size: 0.85rem;
  color: var(--accent-gold);
  font-weight: 600;
}

/* ==========================================================================
   Chapter Index List & Live Running Gradient Full-Box Borders
   ========================================================================== */
.chapter-list {
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
}

.chapter-card-link {
  position: relative;
  display: block;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  outline: none;
  border-radius: var(--radius-md);
  padding: 2px; /* Full perimeter border wrapper */
  background: linear-gradient(125deg, var(--c-glow-1, #2E6F4D) 0%, var(--c-glow-2, #6EBD8E) 40%, var(--c-glow-3, #A3E8C1) 70%, var(--c-glow-1, #2E6F4D) 100%);
  background-size: 250% 250%;
  animation: liveCardBorderFlow 6s ease-in-out infinite alternate;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.35);
  transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.28s ease;
}

@keyframes liveCardBorderFlow {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.chapter-card-link:hover {
  transform: translateY(-4px) scale(1.008);
  box-shadow: 0 12px 32px var(--c-shadow, rgba(74, 158, 114, 0.35)), 0 2px 10px rgba(0, 0, 0, 0.4);
  animation-duration: 3.5s;
}

.chapter-card-link:focus-visible {
  outline: 3px solid var(--c-accent, #4A9E72);
  outline-offset: 3px;
}

.chapter-row {
  background: #000000;
  border-radius: calc(var(--radius-md) - 2px);
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  transition: background 0.25s ease;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  width: 100%;
}

.chapter-card-link:hover .chapter-row {
  background: #060606;
}

.chapter-row * {
  pointer-events: none; /* Ensures clicking anywhere on the card bubbles directly to the link */
}

.chapter-row-left {
  display: flex;
  align-items: center;
  gap: 1.35rem;
}

.chapter-num-badge {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-sm);
  background: var(--c-badge-bg, rgba(46, 111, 77, 0.28));
  border: 1.5px solid var(--c-badge-border, rgba(110, 189, 142, 0.55));
  color: var(--c-badge-text, #8BE4B2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
  flex-shrink: 0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.chapter-card-link:hover .chapter-num-badge {
  transform: scale(1.08);
  box-shadow: 0 4px 14px var(--c-shadow, rgba(74, 158, 114, 0.35));
}

.chapter-icon-circle {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #000000;
  border: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
  transition: transform 0.25s ease;
}

.chapter-card-link:hover .chapter-icon-circle {
  transform: scale(1.1) rotate(4deg);
}

.chapter-info {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.chapter-name {
  font-family: var(--font-sans);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
  transition: color 0.2s ease;
}

.chapter-card-link:hover .chapter-name {
  color: #FFFFFF;
}

.chapter-sub-info {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

.chapter-row-right {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-shrink: 0;
}

.status-pill {
  padding: 0.35rem 0.95rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  background: var(--c-pill-bg, var(--accent-forest));
  color: #FFFFFF;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.chapter-card-link:hover .status-pill {
  transform: scale(1.04);
  box-shadow: 0 4px 12px var(--c-shadow, rgba(74, 158, 114, 0.4));
}

.status-pill.read-now {
  background: var(--c-pill-bg, var(--accent-forest));
}

.arrow-action {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: #000000;
  border: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-accent, var(--accent-forest));
  font-weight: 800;
  font-size: 1.15rem;
  transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease;
}

.chapter-card-link:hover .arrow-action {
  transform: translateX(4px);
  background: var(--c-accent, var(--accent-forest));
  color: #FFFFFF;
}

/* ==========================================================================
   6 Distinct Harmonic Chapter Color Themes (Rotating across 28 chapters)
   ========================================================================== */

/* Theme 1: Botanical Emerald (Ch 1, 7, 13, 19, 25) */
.chapter-card-link:nth-child(6n + 1) {
  --c-glow-1: #2E6F4D;
  --c-glow-2: #6EBD8E;
  --c-glow-3: #A3E8C1;
  --c-accent: #4A9E72;
  --c-badge-bg: rgba(46, 111, 77, 0.32);
  --c-badge-border: rgba(110, 189, 142, 0.65);
  --c-badge-text: #8BE4B2;
  --c-pill-bg: #2E6F4D;
  --c-shadow: rgba(74, 158, 114, 0.45);
}

/* Theme 2: Ayurvedic Terracotta & Coral (Ch 2, 8, 14, 20, 26) */
.chapter-card-link:nth-child(6n + 2) {
  --c-glow-1: #B85527;
  --c-glow-2: #E27B4D;
  --c-glow-3: #FFAB80;
  --c-accent: #E27B4D;
  --c-badge-bg: rgba(184, 85, 39, 0.32);
  --c-badge-border: rgba(226, 123, 77, 0.65);
  --c-badge-text: #FFA578;
  --c-pill-bg: #B85527;
  --c-shadow: rgba(226, 123, 77, 0.45);
}

/* Theme 3: Royal Saffron & Imperial Gold (Ch 3, 9, 15, 21, 27) */
.chapter-card-link:nth-child(6n + 3) {
  --c-glow-1: #A17424;
  --c-glow-2: #D4A047;
  --c-glow-3: #FDE69E;
  --c-accent: #D4A047;
  --c-badge-bg: rgba(161, 116, 36, 0.32);
  --c-badge-border: rgba(212, 160, 71, 0.65);
  --c-badge-text: #FCD47E;
  --c-pill-bg: #996A19;
  --c-shadow: rgba(212, 160, 71, 0.45);
}

/* Theme 4: Mystic Lotus & Lavender (Ch 4, 10, 16, 22, 28 Grand Finale) */
.chapter-card-link:nth-child(6n + 4) {
  --c-glow-1: #6C3EA3;
  --c-glow-2: #9B6BC7;
  --c-glow-3: #E2CEFB;
  --c-accent: #9B6BC7;
  --c-badge-bg: rgba(108, 62, 163, 0.32);
  --c-badge-border: rgba(155, 107, 199, 0.65);
  --c-badge-text: #D4B3FA;
  --c-pill-bg: #6C3EA3;
  --c-shadow: rgba(155, 107, 199, 0.45);
}

/* Theme 5: Ocean Mint & Teal (Ch 5, 11, 17, 23) */
.chapter-card-link:nth-child(6n + 5) {
  --c-glow-1: #1B5864;
  --c-glow-2: #38A3A5;
  --c-glow-3: #80ED99;
  --c-accent: #38A3A5;
  --c-badge-bg: rgba(27, 88, 100, 0.32);
  --c-badge-border: rgba(56, 163, 165, 0.65);
  --c-badge-text: #80ED99;
  --c-pill-bg: #1B5864;
  --c-shadow: rgba(56, 163, 165, 0.45);
}

/* Theme 6: Crimson Hibiscus Rose (Ch 6, 12, 18, 24) */
.chapter-card-link:nth-child(6n + 6) {
  --c-glow-1: #94294B;
  --c-glow-2: #D85A7F;
  --c-glow-3: #FFB8CE;
  --c-accent: #D85A7F;
  --c-badge-bg: rgba(148, 41, 75, 0.32);
  --c-badge-border: rgba(216, 90, 127, 0.65);
  --c-badge-text: #FF94B4;
  --c-pill-bg: #94294B;
  --c-shadow: rgba(216, 90, 127, 0.45);
}

/* Footer */
.site-footer {
  background: #000000;
  border-top: 1px solid var(--border-subtle);
  padding: 3.5rem 1.5rem 2.5rem 1.5rem;
  text-align: center;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.footer-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  max-width: 550px;
  margin: 0 auto 1.5rem auto;
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.5rem;
}

/* Responsive Rules */
@media (max-width: 768px) {
  .stats-bar {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .chapter-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.25rem 1.15rem;
  }

  .chapter-row-right {
    width: 100%;
    justify-content: space-between;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border-subtle);
  }

  .chapter-name {
    font-size: 1.05rem;
  }
}


.brand-icon-img {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  object-fit: cover;
  background-color: #FAF7F0;
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.35);
  flex-shrink: 0;
  display: block;
}