/* ============================================
   Fairplay India - Main Stylesheet
   Pure CSS3, Mobile-First, Design System Based
   ============================================ */

/* ========== CSS Variables (Design Tokens) ========== */
:root {
  /* Colors - Surface */
  --surface-white: #FFFFFF;
  --surface-warm-50: #F5F5F5;
  --surface-warm-100: #ECEDEC;
  
  /* Colors - Border */
  --border-hairline: #E0E0E0;
  --border-warm-200: #DAD2CC;
  --border-warm-300: #CACAC8;
  
  /* Colors - Text */
  --text-high: #2E251D;
  --text-title: #44301C;
  --text-body: #333333;
  --text-subtle: #9B917F;
  --text-inverse: #FFFFFF;
  --text-link: #FF6D0E;
  
  /* Colors - Brand */
  --brand-orange-500: #FF6D0E;
  --brand-orange-600: #F46F15;
  --brand-orange-650: #F26614;
  --brand-orange-700: #F06011;
  
  /* Colors - Promo */
  --promo-green-500: #6FAD46;
  --promo-green-600: #80B348;
  --promo-green-300: #A5C079;
  --promo-green-200: #D6E5BB;
  
  /* Colors - Ink */
  --ink-espresso-800: #2E251D;
  --ink-espresso-700: #44301C;
  
  /* Shadows */
  --shadow-ambient: rgba(0, 0, 0, 0.06);
  --shadow-key: rgba(0, 0, 0, 0.12);
  --shadow-depth: rgba(0, 0, 0, 0.18);
  --focus-ring: rgba(255, 109, 14, 0.35);
  --overlay-scrim: rgba(0, 0, 0, 0.45);
  
  /* Radii */
  --radius-card: 8px;
  --radius-button: 6px;
  --radius-input: 6px;
  --radius-pill: 12px;
  --radius-banner: 10px;
  
  /* Transitions */
  --transition-fast: 150ms ease-out;
  --transition-press: 90ms ease-in;
  --transition-focus: 120ms ease-out;
  
  /* Typography */
  --font-system: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  
  /* Spacing */
  --container-max: 1200px;
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 32px;
  --spacing-xl: 48px;
  --spacing-xxl: 64px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-system);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-body);
  background-color: var(--surface-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
  color: var(--brand-orange-700);
  text-decoration: underline;
}

a:active {
  color: #D9570F;
}

a:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

/* ========== Typography ========== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
  color: var(--text-title);
}

h1 {
  font-size: clamp(28px, 5vw, 42px);
  font-weight: 700;
  color: var(--text-title);
}

h2 {
  font-size: clamp(24px, 4vw, 32px);
  font-weight: 600;
  color: var(--text-title);
}

h3 {
  font-size: clamp(20px, 3vw, 24px);
  font-weight: 600;
  color: var(--text-high);
}

h4 {
  font-size: 18px;
  font-weight: 600;
}

p {
  margin-bottom: var(--spacing-sm);
}

ul, ol {
  margin-bottom: var(--spacing-sm);
  padding-left: var(--spacing-md);
}

li {
  margin-bottom: var(--spacing-xs);
}

/* ========== Container & Layout ========== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--spacing-md);
  }
}

/* ========== Header ========== */
.site-header {
  background: linear-gradient(180deg, #6D3506 0%, #2E251D 100%);
  color: var(--text-inverse);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 6px var(--shadow-key);
}

.header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-sm);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.header-logo {
  display: flex;
  align-items: center;
}

.header-logo img {
  height: 40px;
  width: auto;
}

.header-cta {
  display: none;
  gap: var(--spacing-sm);
}

@media (min-width: 768px) {
  .header-cta {
    display: flex;
  }
}

.header-nav {
  display: none;
}

@media (min-width: 768px) {
  .header-nav {
    display: block;
  }
  
  .nav-list {
    display: flex;
    justify-content: center;
    align-items: center;
    list-style: none;
    padding: var(--spacing-sm) 0;
    margin: 0;
    gap: var(--spacing-md);
  }
  
  .nav-list a {
    color: var(--text-inverse);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-bottom: 2px solid transparent;
    transition: all var(--transition-fast);
  }
  
  .nav-list a:hover {
    color: var(--brand-orange-500);
    text-decoration: none;
    border-bottom-color: var(--brand-orange-500);
  }
  
  .nav-list a.active {
    color: var(--brand-orange-600);
    border-bottom-color: var(--brand-orange-600);
  }
}

/* Mobile Menu */
.mobile-menu-toggle {
  display: block;
  background: transparent;
  border: none;
  color: var(--text-inverse);
  font-size: 24px;
  cursor: pointer;
  padding: var(--spacing-xs);
}

@media (min-width: 768px) {
  .mobile-menu-toggle {
    display: none;
  }
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 71px;
  left: 0;
  right: 0;
  background: linear-gradient(180deg, #6D3506 0%, #2E251D 100%);
  padding: var(--spacing-md);
  box-shadow: 0 4px 12px var(--shadow-depth);
  max-height: calc(100vh - 71px);
  overflow-y: auto;
}

.mobile-menu.active {
  display: block;
}

.mobile-nav-list {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--spacing-md) 0;
}

.mobile-nav-list li {
  margin-bottom: var(--spacing-xs);
}

.mobile-nav-list a {
  display: block;
  color: var(--text-inverse);
  padding: var(--spacing-sm);
  border-radius: var(--radius-button);
  transition: background var(--transition-fast);
}

.mobile-nav-list a:hover,
.mobile-nav-list a.active {
  background: rgba(255, 255, 255, 0.1);
  text-decoration: none;
}

.mobile-cta {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

/* ========== Buttons ========== */
.btn {
  display: inline-block;
  padding: 12px 24px;
  font-size: 16px;
  font-weight: 500;
  text-align: center;
  border-radius: var(--radius-button);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  min-width: 60px;
  text-decoration: none;
  font-family: inherit;
}

.btn:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

.btn--primary {
  background: linear-gradient(180deg, var(--brand-orange-500) 0%, var(--brand-orange-700) 100%);
  color: var(--text-inverse);
  box-shadow: 0 2px 6px var(--shadow-key);
}

.btn--primary:hover {
  background: linear-gradient(180deg, #FF7018 0%, #F36C13 100%);
  box-shadow: 0 4px 10px var(--shadow-depth);
  text-decoration: none;
  transform: translateY(-1px);
}

.btn--primary:active {
  background: linear-gradient(180deg, var(--brand-orange-650) 0%, #E25910 100%);
  box-shadow: inset 0 2px 0 rgba(0, 0, 0, 0.08);
  transform: translateY(0);
}

.btn--secondary {
  background: transparent;
  color: var(--ink-espresso-800);
  border: 1px solid var(--border-warm-300);
}

.btn--secondary:hover {
  background: var(--surface-warm-50);
  text-decoration: none;
}

.btn--secondary:active {
  background: var(--surface-warm-100);
}

.btn--link {
  background: transparent;
  color: var(--text-link);
  padding: var(--spacing-xs) var(--spacing-sm);
}

.btn--link:hover {
  color: var(--brand-orange-700);
  text-decoration: underline;
}

/* ========== Breadcrumbs ========== */
.breadcrumbs {
  padding: var(--spacing-sm) 0;
  font-size: 14px;
  color: var(--text-subtle);
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  padding: 0;
  margin: 0;
  gap: var(--spacing-xs);
}

.breadcrumbs li {
  margin: 0;
}

.breadcrumbs li:not(:last-child)::after {
  content: "/";
  margin-left: var(--spacing-xs);
  color: var(--text-subtle);
}

.breadcrumbs a {
  color: var(--text-link);
}

.breadcrumbs a:hover {
  text-decoration: underline;
}

.breadcrumbs [aria-current="page"] {
  color: var(--text-body);
}

/* ========== Hero Section ========== */
#hero {
  padding: var(--spacing-lg) 0;
  background: var(--surface-warm-50);
}

.hero-content {
  display: grid;
  gap: var(--spacing-md);
}

@media (min-width: 768px) {
  .hero-content {
    grid-template-columns: 1fr 1fr;
    align-items: start;
    gap: var(--spacing-xl);
  }
}

.hero-title {
  grid-column: 1 / -1;
  order: 0;
}

.hero-text {
  order: 1;
}

.hero-image-wrapper {
  order: 2;
  text-align: center;
}

.hero-image-wrapper img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-card);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  align-items: center;
  margin-top: var(--spacing-sm);
  color: var(--text-subtle);
  font-size: 14px;
}

.reading-time {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.fact-checked {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  background: rgba(111, 173, 70, 0.1);
  border-radius: var(--radius-pill);
  color: var(--promo-green-500);
  font-size: 14px;
  font-weight: 500;
  margin-top: var(--spacing-md);
}

.fact-checked svg {
  width: 16px;
  height: 16px;
  fill: var(--promo-green-500);
}

/* ========== Table of Contents ========== */
#toc {
  background: var(--surface-white);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-card);
  padding: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

.toc-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  user-select: none;
}

.toc-header h2 {
  margin: 0;
  font-size: 20px;
}

.toc-toggle {
  background: transparent;
  border: none;
  color: var(--text-link);
  font-size: 20px;
  cursor: pointer;
  transition: transform var(--transition-fast);
}

.toc-toggle.active {
  transform: rotate(180deg);
}

.toc-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.toc-content.active {
  max-height: 1000px;
  margin-top: var(--spacing-md);
}

.toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.toc-list li {
  margin-bottom: var(--spacing-xs);
}

.toc-list a {
  display: block;
  padding: var(--spacing-xs);
  border-radius: var(--radius-button);
  transition: background var(--transition-fast);
}

.toc-list a:hover {
  background: var(--surface-warm-50);
  text-decoration: none;
}

.toc-list a.active {
  background: rgba(255, 109, 14, 0.1);
  color: var(--brand-orange-600);
  font-weight: 500;
}

.toc-list .toc-h3 {
  padding-left: var(--spacing-md);
  font-size: 14px;
}

/* ========== Games Section ========== */
#games {
  padding: var(--spacing-xl) 0;
  background: var(--surface-white);
}

.games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--spacing-md);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

@media (max-width: 767px) {
  .games-grid {
    grid-auto-flow: column;
    grid-template-columns: repeat(10, minmax(200px, 1fr));
    grid-template-rows: 1fr;
  }
}

@media (min-width: 768px) {
  .games-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

.game-card {
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--surface-warm-100);
  aspect-ratio: 4/3;
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.game-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 12px var(--shadow-key);
}

.game-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.game-card-overlay {
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

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

.game-card .btn--primary {
  animation: popIn 0.3s ease;
}

@keyframes popIn {
  0% {
    transform: scale(0.8);
    opacity: 0;
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

/* ========== Content Sections ========== */
section {
  padding: var(--spacing-xl) 0;
}

section:nth-child(even) {
  background: var(--surface-warm-50);
}

section:nth-child(odd) {
  background: var(--surface-white);
}

.section-image {
  margin: var(--spacing-md) 0;
  text-align: center;
}

.section-image img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-card);
  box-shadow: 0 1px 2px var(--shadow-ambient);
}

.section-image figcaption {
  margin-top: var(--spacing-sm);
  color: var(--text-subtle);
  font-size: 14px;
  font-style: italic;
}

.content {
  max-width: 800px;
  margin: 0 auto;
}

/* ========== Tables ========== */
.table-wrapper {
  overflow-x: auto;
  margin: var(--spacing-md) 0;
  border-radius: var(--radius-card);
  box-shadow: 0 1px 2px var(--shadow-ambient);
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface-white);
}

thead {
  background: var(--surface-warm-50);
}

th {
  text-align: left;
  padding: var(--spacing-sm);
  font-weight: 600;
  color: var(--ink-espresso-800);
  border-bottom: 1px solid var(--border-hairline);
}

td {
  padding: var(--spacing-sm);
  border-bottom: 1px solid var(--border-hairline);
}

tbody tr:hover {
  background: #FCFCFC;
}

tbody tr:last-child td {
  border-bottom: none;
}

/* Mobile table cards */
@media (max-width: 640px) {
  .table-wrapper.responsive table,
  .table-wrapper.responsive thead,
  .table-wrapper.responsive tbody,
  .table-wrapper.responsive th,
  .table-wrapper.responsive td,
  .table-wrapper.responsive tr {
    display: block;
  }
  
  .table-wrapper.responsive thead tr {
    position: absolute;
    top: -9999px;
    left: -9999px;
  }
  
  .table-wrapper.responsive tr {
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--border-hairline);
    border-radius: var(--radius-card);
    padding: var(--spacing-sm);
  }
  
  .table-wrapper.responsive td {
    border: none;
    position: relative;
    padding-left: 50%;
  }
  
  .table-wrapper.responsive td::before {
    content: attr(data-label);
    position: absolute;
    left: var(--spacing-sm);
    font-weight: 600;
    color: var(--text-title);
  }
}

/* ========== Author Section ========== */
#author {
  background: var(--surface-warm-50);
  padding: var(--spacing-lg) 0;
}

.author-card {
  display: flex;
  gap: var(--spacing-md);
  align-items: start;
  background: var(--surface-white);
  padding: var(--spacing-md);
  border-radius: var(--radius-card);
  border: 1px solid var(--border-hairline);
  box-shadow: 0 1px 2px var(--shadow-ambient);
}

.author-avatar {
  flex-shrink: 0;
}

.author-avatar img {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
}

.author-info h3 {
  margin-bottom: var(--spacing-xs);
}

.author-meta {
  color: var(--text-subtle);
  font-size: 14px;
  margin-top: var(--spacing-xs);
}

/* ========== FAQ Section ========== */
#faq {
  background: var(--surface-white);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

details {
  background: var(--surface-white);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-card);
  margin-bottom: var(--spacing-sm);
  padding: var(--spacing-md);
  cursor: pointer;
}

details[open] {
  box-shadow: 0 2px 6px var(--shadow-ambient);
}

summary {
  font-weight: 600;
  color: var(--text-title);
  list-style: none;
  cursor: pointer;
  user-select: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  content: "+";
  font-size: 24px;
  color: var(--brand-orange-500);
  transition: transform var(--transition-fast);
}

details[open] summary::after {
  content: "−";
}

details p {
  margin-top: var(--spacing-sm);
  color: var(--text-body);
}

/* ========== Footer ========== */
.site-footer {
  background: var(--ink-espresso-800);
  color: var(--text-inverse);
  padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
  display: grid;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

@media (min-width: 768px) {
  .footer-content {
    grid-template-columns: repeat(3, 1fr);
  }
}

.footer-section h3 {
  color: var(--text-inverse);
  margin-bottom: var(--spacing-md);
  font-size: 18px;
}

.footer-logo img {
  height: 50px;
  width: auto;
  margin-bottom: var(--spacing-md);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: var(--spacing-xs);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--text-inverse);
  text-decoration: none;
}

.payment-methods {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.payment-icon {
  width: 50px;
  height: 32px;
  background: var(--surface-white);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
}

.payment-icon svg {
  max-width: 100%;
  max-height: 100%;
}

.gamble-aware {
  margin-top: var(--spacing-md);
}

.gamble-aware img {
  height: 60px;
  width: auto;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-md);
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
}

/* ========== Back to Top Button ========== */
.back-to-top {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 48px;
  height: 48px;
  background: linear-gradient(180deg, var(--brand-orange-500) 0%, var(--brand-orange-700) 100%);
  color: var(--text-inverse);
  border: none;
  border-radius: 50%;
  font-size: 24px;
  cursor: pointer;
  box-shadow: 0 4px 12px var(--shadow-depth);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 999;
  transition: all var(--transition-fast);
}

.back-to-top.visible {
  display: flex;
}

.back-to-top:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px var(--shadow-depth);
}

.back-to-top:active {
  transform: translateY(0);
}

/* ========== Utility Classes ========== */
.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;
}

.text-center {
  text-align: center;
}

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

/* ========== Print Styles ========== */
@media print {
  .site-header,
  .mobile-menu-toggle,
  .back-to-top,
  #toc,
  .btn {
    display: none;
  }
  
  body {
    font-size: 12pt;
  }
  
  a {
    text-decoration: underline;
  }
}