/* Modern CSS Reset and Variables */
:root {
  --primary: #0f766e;
  --primary-dark: #0d5d56;
  --primary-light: #14b8a6;
  --secondary: #10b981;
  --accent: #f59e0b;
  --background: #0f172a;
  --surface: #1e293b;
  --surface-light: #334155;
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --border: #334155;
  --success: #22c55e;
  --warning: #f59e0b;
  --error: #ef4444;
  --gradient: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

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

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--background);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Utility Classes */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

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

.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  z-index: 1000;
  padding: 8px 16px;
  background: var(--primary);
  color: white;
  text-decoration: none;
  border-radius: 4px;
  font-weight: 500;
  transition: top 0.3s;
}

.skip-link:focus {
  top: 6px;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 0.5rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
  font-size: 1rem;
  line-height: 1.5;
}

.btn-primary {
  background: var(--gradient);
  color: white;
  box-shadow: var(--shadow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 2px solid var(--border);
}

.btn-outline:hover {
  background: var(--surface);
  border-color: var(--primary);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.navbar {
  padding: 1rem 0;
}

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

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-primary);
  text-decoration: none;
}

.logo {
  width: 50px;
  height: 50px;
  border-radius: 0.5rem;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  width: 25px;
  height: 3px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s;
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

.nav-menu {
  display: flex;
  gap: 2rem;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: 0.375rem;
  transition: all 0.2s;
}

.nav-link:hover {
  color: var(--text-primary);
  background: var(--surface);
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 5rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at center, rgba(15, 118, 110, 0.1) 0%, transparent 70%);
  z-index: -1;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.bonus-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--gradient);
  padding: 1.5rem;
  border-radius: 1rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-lg);
}

.bonus-icon {
  font-size: 2rem;
}

.bonus-text h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.bonus-text p {
  opacity: 0.9;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  margin-bottom: 3rem;
}

.trust-indicators {
  display: flex;
  gap: 2rem;
}

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

.trust-number {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--secondary);
}

.trust-label {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.phone-mockup {
  position: relative;
  z-index: 2;
}

.phone-mockup img {
  max-width: 100%;
  height: auto;
  filter: drop-shadow(0 25px 50px rgba(0, 0, 0, 0.3));
}

.floating-cards {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
}

.card-item {
  position: absolute;
  font-size: 2rem;
  animation: float 6s ease-in-out infinite;
}

.card-1 {
  top: 10%;
  left: 10%;
  animation-delay: 0s;
}

.card-2 {
  top: 20%;
  right: 10%;
  animation-delay: 1.5s;
}

.card-3 {
  bottom: 30%;
  left: 5%;
  animation-delay: 3s;
}

.card-4 {
  bottom: 10%;
  right: 15%;
  animation-delay: 4.5s;
}

@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(5deg); }
}

/* Section Styles */
.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Games Section */
.games-section {
  padding: 6rem 0;
  background: var(--surface);
}

.games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.game-card {
  background: var(--background);
  padding: 2rem;
  border-radius: 1rem;
  text-align: center;
  border: 1px solid var(--border);
  transition: all 0.3s;
  opacity: 0;
  transform: translateY(20px);
}

.game-card.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.game-card:hover {
  transform: translateY(-5px);
  border-color: var(--primary);
  box-shadow: var(--shadow-xl);
}

.game-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.game-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.game-card p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.game-players {
  display: inline-block;
  background: var(--primary);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  font-size: 0.875rem;
  font-weight: 500;
}

/* Features Section */
.features-section {
  padding: 6rem 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: var(--surface);
  padding: 2rem;
  border-radius: 1rem;
  border: 1px solid var(--border);
  transition: all 0.3s;
  opacity: 0;
  transform: translateY(20px);
}

.feature-card.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.feature-card p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Reviews Section */
.reviews-section {
  padding: 6rem 0;
  background: var(--surface);
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-bottom: 4rem;
}

.review-card {
  background: var(--background);
  padding: 2rem;
  border-radius: 1rem;
  border: 1px solid var(--border);
  transition: all 0.3s;
  opacity: 0;
  transform: translateY(20px);
}

.review-card.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.review-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.review-header {
  margin-bottom: 1rem;
}

.reviewer-info {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.reviewer-avatar {
  width: 50px;
  height: 50px;
  background: var(--gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 1.25rem;
}

.reviewer-info h4 {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.review-rating {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.stars {
  color: #fbbf24;
  font-size: 1rem;
}

.rating-text {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.review-text {
  font-style: italic;
  line-height: 1.6;
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

.review-date {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.reviews-stats {
  display: flex;
  justify-content: center;
  gap: 4rem;
  padding: 2rem;
  background: var(--background);
  border-radius: 1rem;
  border: 1px solid var(--border);
}

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

.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--secondary);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* Download Section */
.download-section {
  padding: 6rem 0;
  background: var(--background);
}

.download-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.referral-highlight {
  background: var(--surface);
  padding: 2rem;
  border-radius: 1rem;
  border: 1px solid var(--border);
  margin-bottom: 2rem;
}

.referral-code {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--background);
  padding: 1rem;
  border-radius: 0.5rem;
  margin-bottom: 1rem;
}

.code-label {
  color: var(--text-secondary);
  font-weight: 500;
}

.code-value {
  font-family: 'Courier New', monospace;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--secondary);
  background: var(--primary);
  padding: 0.5rem 1rem;
  border-radius: 0.375rem;
  color: white;
}

.copy-btn {
  background: var(--surface-light);
  border: none;
  padding: 0.5rem;
  border-radius: 0.375rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
}

.copy-btn:hover {
  background: var(--primary);
  color: white;
}

.referral-benefit {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.download-buttons {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
}

.download-btn {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  text-decoration: none;
  color: var(--text-primary);
  transition: all 0.3s;
  flex: 1;
}

.download-btn:hover {
  transform: translateY(-2px);
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
}

.btn-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient);
  border-radius: 0.5rem;
  color: white;
}

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

.btn-subtitle {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.btn-title {
  font-size: 1rem;
  font-weight: 600;
}

.security-badges {
  display: flex;
  gap: 1rem;
}

.badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--surface);
  border-radius: 2rem;
  font-size: 0.875rem;
  border: 1px solid var(--border);
}

.badge-icon {
  font-size: 1rem;
}

.download-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.app-preview img {
  max-width: 100%;
  height: auto;
  border-radius: 1rem;
  box-shadow: var(--shadow-xl);
}

/* Footer */
.footer {
  background: var(--surface);
  padding: 3rem 0 1rem;
  border-top: 1px solid var(--border);
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.footer-logo {
  width: 40px;
  height: 40px;
  border-radius: 0.375rem;
}

.footer-brand-text {
  font-weight: 700;
  font-size: 1.125rem;
}

.footer-links {
  display: flex;
  gap: 2rem;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--text-primary);
}

.footer-social {
  display: flex;
  gap: 1rem;
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--background);
  border-radius: 0.5rem;
  color: var(--text-secondary);
  transition: all 0.2s;
}

.footer-social a:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-2px);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.footer-bottom p {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
}

.disclaimer {
  font-size: 0.75rem !important;
  color: var(--text-muted) !important;
}

/* Floating Action Button */
.fab-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 50;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
}

.fab {
  width: 56px;
  height: 56px;
  background: var(--gradient);
  border: none;
  border-radius: 50%;
  color: white;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  transition: all 0.3s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.fab:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-xl);
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--background);
    border: 1px solid var(--border);
    border-top: none;
    flex-direction: column;
    padding: 1rem;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
  }

  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .hero-content {
    margin-top: 50px;
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
  }

  .trust-indicators {
    justify-content: center;
  }

  .download-content {
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
  }

  .download-buttons {
    flex-direction: column;
  }

  .security-badges {
    justify-content: center;
    flex-wrap: wrap;
  }

  .footer-content {
    flex-direction: column;
    gap: 2rem;
    text-align: center;
  }

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
  }

  .reviews-stats {
    flex-direction: column;
    gap: 2rem;
  }

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

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

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

@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }

  .hero {
    padding-top: 4rem;
  }

  .hero-title {
    font-size: 2rem;
  }

  .bonus-card {
    flex-direction: column;
    text-align: center;
  }

  .trust-indicators {
    flex-direction: column;
    gap: 1rem;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .fab-container {
    bottom: 1rem;
    right: 1rem;
  }

  .fab {
    width: 48px;
    height: 48px;
  }
}

/* Performance Optimizations */
img {
  max-width: 100%;
  height: auto;
}

/* Lazy loading support */
img[loading="lazy"] {
  opacity: 0;
  transition: opacity 0.3s;
}

img[loading="lazy"].loaded {
  opacity: 1;
}

/* Focus styles for accessibility */
a:focus,
button:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  html {
    scroll-behavior: auto;
  }
}

/* Print styles */
@media print {
  .header,
  .fab-container,
  .nav-toggle,
  .floating-cards {
    display: none;
  }

  body {
    background: white;
    color: black;
  }

  .hero-bg {
    display: none;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --background: #000000;
    --surface: #1a1a1a;
    --text-primary: #ffffff;
    --border: #666666;
  }
}