/* ===== CSS CUSTOM PROPERTIES ===== */
:root {
  /* Colors */
  --primary-color: #1a1a2e;
  --secondary-color: #16213e;
  --accent-color: #00d4ff;
  --accent-hover: #00b8e6;
  --bonus-color: #ffcc00;
  --bonus-hover: #e6b800;
  --success-color: #00ff88;
  --danger-color: #ff4757;
  --text-primary: #ffffff;
  --text-secondary: #b0b3c1;
  --text-dark: #1a1a1e;
  --bg-primary: #0a0a0f;
  --bg-secondary: #161625;
  --bg-card: #1e1e2e;
  --bg-overlay: rgba(0, 0, 0, 0.7);
  --border-color: rgba(255, 255, 255, 0.1);
  --shadow-light: rgba(0, 212, 255, 0.3);
  --shadow-dark: rgba(0, 0, 0, 0.5);

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;

  /* 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;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

  /* Breakpoints */
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
  --breakpoint-2xl: 1536px;
}

/* ===== RESET & BASE STYLES ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-primary);
  overflow-x: hidden;
}

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

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

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

ul, ol {
  list-style: none;
}

input, textarea {
  font-family: inherit;
  font-size: inherit;
}

/* ===== UTILITY CLASSES ===== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.section-padding {
  padding: var(--space-4xl) 0;
}

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

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

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

.hidden {
  display: none;
}

.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;
}

/* ===== HEADER ===== */
.main-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(26, 26, 46, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: var(--transition-base);
}

.navbar {
  padding: var(--space-md) 0;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.nav-logo h1 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--accent-color);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

.nav-link {
  font-weight: 500;
  color: var(--text-secondary);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  transition: var(--transition-base);
  position: relative;
}

.nav-link:hover {
  color: var(--accent-color);
  background: rgba(0, 212, 255, 0.1);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 4px;
}

.nav-toggle span {
  width: 25px;
  height: 3px;
  background: var(--text-primary);
  border-radius: var(--radius-full);
  transition: var(--transition-base);
}

/* ===== HERO SECTION ===== */
.hero-section {
  padding: calc(80px + var(--space-4xl)) 0 var(--space-4xl);
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at center, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.hero-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  position: relative;
  z-index: 1;
}

.hero-content h1 {
  font-size: var(--font-size-5xl);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
  color: var(--text-primary);
}

.highlight {
  color: var(--accent-color);
  text-shadow: 0 0 20px var(--shadow-light);
}

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

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

.hero-image {
  text-align: center;
  position: relative;
}

.hero-image img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  transition: var(--transition-slow);
}

.hero-image img:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-2xl), 0 0 30px var(--shadow-light);
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-size: var(--font-size-base);
  font-weight: 600;
  border-radius: var(--radius-lg);
  transition: var(--transition-base);
  text-decoration: none;
  cursor: pointer;
  border: 2px solid transparent;
  position: relative;
  overflow: hidden;
  min-height: 44px;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: var(--transition-slow);
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-hover) 100%);
  color: var(--text-dark);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary {
  background: transparent;
  color: var(--accent-color);
  border-color: var(--accent-color);
}

.btn-secondary:hover {
  background: var(--accent-color);
  color: var(--text-dark);
}

.btn-accent {
  background: linear-gradient(135deg, var(--bonus-color) 0%, var(--bonus-hover) 100%);
  color: var(--text-dark);
  box-shadow: var(--shadow-md);
}

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

.btn small {
  display: block;
  font-size: var(--font-size-sm);
  opacity: 0.8;
  margin-top: var(--space-xs);
}

/* ===== PROMO SECTION ===== */
.promo-highlight {
  padding: var(--space-3xl) 0;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  position: relative;
}

.promo-highlight::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at top, rgba(255, 204, 0, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.promo-card {
  background: var(--bg-card);
  border-radius: var(--radius-2xl);
  padding: var(--space-2xl);
  text-align: center;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border-color);
  position: relative;
  z-index: 1;
}

.promo-card h2 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-lg);
  color: var(--bonus-color);
}

.promo-card p {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-xl);
  color: var(--text-secondary);
}

.promo-code-display {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.promo-code-display input {
  background: var(--text-primary);
  color: white;
  padding: var(--space-md);
  border-radius: var(--radius-md);
  font-size: var(--font-size-lg);
  font-weight: 600;
  text-align: center;
  min-width: 120px;
  border: 2px solid transparent;
}

.promo-code-display input:focus {
  outline: none;
  border-color: var(--accent-color);
}

.copy-btn {
  background: var(--accent-color);
  color: var(--text-dark);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  font-weight: 600;
  transition: var(--transition-base);
}

.copy-btn:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
}

.countdown {
  margin-bottom: var(--space-xl);
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
}

#timer {
  font-weight: 700;
  color: var(--bonus-color);
  font-size: var(--font-size-2xl);
  text-shadow: 0 0 10px rgba(255, 204, 0, 0.5);
}

/* ===== GAMES SECTION ===== */
.games-section {
  padding: var(--space-4xl) 0;
  background: var(--bg-primary);
}

.games-section h2 {
  font-size: var(--font-size-4xl);
  text-align: center;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.section-subtitle {
  text-align: center;
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--space-3xl);
}

.games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
}

.game-card {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: var(--transition-base);
  border: 1px solid var(--border-color);
  position: relative;
}

.game-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl);
  border-color: var(--accent-color);
}

.game-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: var(--transition-base);
}

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

.game-info {
  padding: var(--space-lg);
  text-align: center;
}

.game-info h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.game-info p {
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
}

.game-btn {
  background: var(--accent-color);
  color: var(--text-dark);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-md);
  font-weight: 600;
  transition: var(--transition-base);
  display: inline-block;
}

.game-btn:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
}

/* ===== FEATURES SECTION ===== */
.features-section {
  padding: var(--space-4xl) 0;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.features-section h2 {
  font-size: var(--font-size-4xl);
  text-align: center;
  margin-bottom: var(--space-3xl);
  color: var(--text-primary);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-xl);
}

.feature-card {
  background: var(--bg-card);
  padding: var(--space-2xl);
  border-radius: var(--radius-xl);
  text-align: center;
  transition: var(--transition-base);
  border: 1px solid var(--border-color);
}

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

.feature-icon {
  font-size: var(--font-size-5xl);
  margin-bottom: var(--space-lg);
  display: block;
}

.feature-card h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-md);
  color: var(--accent-color);
}

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

/* ===== HOW TO SECTION ===== */
.how-to-section {
  padding: var(--space-4xl) 0;
  background: var(--bg-primary);
}

.how-to-section h2 {
  font-size: var(--font-size-4xl);
  text-align: center;
  margin-bottom: var(--space-3xl);
  color: var(--text-primary);
}

.steps-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-2xl);
  max-width: 1000px;
  margin: 0 auto;
}

.step {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
  padding: var(--space-lg);
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
  transition: var(--transition-base);
}

.step:hover {
  border-color: var(--accent-color);
  transform: translateY(-5px);
}

.step-number {
  background: var(--accent-color);
  color: var(--text-dark);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  font-weight: 700;
  flex-shrink: 0;
}

.step-content h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-sm);
  color: var(--accent-color);
}

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

/* ===== FAQ SECTION ===== */
.faq-section {
  padding: var(--space-4xl) 0;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.faq-section h2 {
  font-size: var(--font-size-4xl);
  text-align: center;
  margin-bottom: var(--space-3xl);
  color: var(--text-primary);
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
  max-width: 1000px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  transition: var(--transition-base);
}

.faq-item:hover {
  border-color: var(--accent-color);
  transform: translateY(-2px);
}

.faq-item h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-md);
  color: var(--accent-color);
}

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

/* ===== DOWNLOAD SECTION ===== */
.download-section {
  padding: var(--space-3xl) 0;
  background: var(--bg-primary);
  text-align: center;
}

.download-section h2 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.download-section p {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
}

.download-btn {
  background: linear-gradient(135deg, var(--success-color) 0%, #00cc66 100%);
  color: var(--text-dark);
  padding: var(--space-lg) var(--space-2xl);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-lg);
  font-weight: 600;
  transition: var(--transition-base);
  display: inline-block;
  box-shadow: var(--shadow-md);
}

.download-btn:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

/* ===== BLOG SECTION ===== */
.blog-section {
  padding: var(--space-4xl) 0;
  background: var(--bg-primary);
}

.blog-section h2 {
  font-size: var(--font-size-4xl);
  text-align: center;
  margin-bottom: var(--space-md);
  margin-top: 20%;
  color: var(--text-primary);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
}

.blog-card {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: var(--transition-base);
  border: 1px solid var(--border-color);
  position: relative;
}

.blog-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl);
  border-color: var(--accent-color);
}

.blog-card img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: var(--transition-base);
}

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

.blog-content {
  padding: var(--space-lg);
}

.blog-content h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.blog-content p {
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
  line-height: 1.6;
}

.read-more {
  background: var(--accent-color);
  color: var(--text-dark);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-md);
  font-weight: 600;
  transition: var(--transition-base);
  display: inline-block;
  text-decoration: none;
}

.read-more:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
}

/* ===== FOOTER ===== */
.main-footer {
  background: var(--bg-secondary);
  padding: var(--space-4xl) 0 var(--space-xl);
  border-top: 1px solid var(--border-color);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer-section h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-lg);
  color: var(--accent-color);
}

.footer-section h4 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.footer-section p {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

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

.footer-section ul li a {
  color: var(--text-secondary);
  transition: var(--transition-base);
}

.footer-section ul li a:hover {
  color: var(--accent-color);
}

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

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--bg-card);
  border-radius: 50%;
  font-size: var(--font-size-lg);
  transition: var(--transition-base);
}

.social-links a:hover {
  background: var(--accent-color);
  transform: translateY(-2px);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

.footer-bottom a {
  color: var(--accent-color);
  transition: var(--transition-base);
}

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

/* ===== MOBILE RESPONSIVENESS ===== */
@media (max-width: 768px) {
  :root {
    --font-size-5xl: 2.5rem;
    --font-size-4xl: 2rem;
    --font-size-3xl: 1.5rem;
  }

  .nav-menu {
    position: fixed;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-card);
    flex-direction: column;
    padding: var(--space-xl);
    border-top: 1px solid var(--border-color);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
  }

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

  .nav-toggle {
    display: flex;
    color: white;
  }

  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

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

  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }

  .hero-container {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
    text-align: center;
  }

  .hero-content h1 {
    font-size: var(--font-size-4xl);
  }

  .hero-cta {
    justify-content: center;
  }

  .promo-code-display {
    flex-direction: column;
    align-items: center;
  }

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

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

  .steps-container {
    grid-template-columns: 1fr;
  }

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

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

  .blog-card img {
    height: 200px;
  }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .social-links {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-sm);
  }

  .hero-section {
    padding: calc(80px + var(--space-2xl)) 0 var(--space-2xl);
  }

  .section-padding {
    padding: var(--space-2xl) 0;
  }

  .hero-content h1 {
    font-size: var(--font-size-3xl);
  }

  .hero-subtitle {
    font-size: var(--font-size-base);
  }

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

  .promo-card h2 {
    font-size: var(--font-size-2xl);
  }

  .game-card img {
    height: 150px;
  }

  .feature-card,
  .faq-item {
    padding: var(--space-lg);
  }

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

  .btn {
    width: 100%;
    max-width: 300px;
  }
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(0, 212, 255, 0.4);
  }
  50% {
    box-shadow: 0 0 0 10px rgba(0, 212, 255, 0);
  }
}

.animate-fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

.animate-pulse {
  animation: pulse 2s infinite;
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media (prefers-color-scheme: light) {
  :root {
    --bg-primary: #f8fafc;
    --bg-secondary: #e2e8f0;
    --bg-card: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: rgba(0, 0, 0, 0.1);
  }
}

/* ===== FOCUS STYLES ===== */
.btn:focus,
.nav-link:focus,
.game-btn:focus,
.download-btn:focus {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}

/* ===== LOADING STATES ===== */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid var(--accent-color);
  border-radius: 50%;
  border-top-color: transparent;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}


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

body {
  font-family: "Poppins", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #e4edff 0, #f5f7fb 40%, #eef2ff 100%);
  color: #0f172a;
  line-height: 1.7;
}

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



/* PAGE WRAPPER */
.page-wrapper {
  max-width: 1120px;
  margin: 22px auto 40px;
  margin-top: 100px;
  padding: 0 14px 40px;
}

/* HERO */
.hero-box {
  background: #ffffff;
  border-radius: 16px;
  margin-top: 100px;
  padding: 18px 20px 18px;
  border: 1px solid #d0e0ff;
  box-shadow: 0 14px 30px rgba(148, 163, 184, 0.25);
  margin-bottom: 18px;
  position: relative;
  overflow: hidden;
}

.hero-box::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(96, 165, 250, 0.15), transparent 60%);
  pointer-events: none;
}

.hero-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  background: #e0edff;
  color: #1d4ed8;
  padding: 4px 11px;
  border-radius: 999px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hero-tag {
  font-size: 11px;
  color: #64748b;
}

.hero-title {
  position: relative;
  z-index: 1;
  font-size: 24px;
  line-height: 1.3;
  color: #0f172a;
  margin-bottom: 6px;
}

.hero-meta {
  position: relative;
  z-index: 1;
  font-size: 13px;
  color: #6b7280;
}

/* LAYOUT: ARTICLE + SIDEBAR */
.content-layout {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(220px, 1.1fr);
  gap: 20px;
  align-items: flex-start;
}

@media (max-width: 900px) {
  .content-layout {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* ARTICLE CARD */
.article-card {
  background: #ffffff;
  border-radius: 18px;
  border: 1px solid #d1d5db;
  padding: 20px 20px 24px;
  box-shadow: 0 20px 40px rgba(148, 163, 184, 0.35);
}

.slug-line {
  font-size: 12px;
  color: #6b7280;
  margin-bottom: 4px;
}

.article-card h1,
.article-card h2,
.article-card h3 {
  color: #0f172a;
  margin-top: 20px;
  margin-bottom: 8px;
  line-height: 1.3;
}

.article-card h1 {
  font-size: 20px;
  border-bottom: 1px solid #e5e7eb;
  padding-bottom: 6px;
}

.article-card h2 {
  font-size: 18px;
}

.article-card h3 {
  font-size: 16px;
}

.article-card p {
  margin-bottom: 10px;
  color: #374151;
  font-size: 14px;
}

.article-card ul,
.article-card ol {
  padding-left: 20px;
  margin-bottom: 10px;
  font-size: 14px;
}

.article-card li {
  margin-bottom: 6px;
  color: #374151;
}

/* IMAGE PLACEHOLDER */
.image-placeholder {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 12px;
  background: #f9fafb;
  border-radius: 8px;
  border: 1px dashed #cbd5e1;
  padding: 8px 10px;
  margin: 10px 0;
  white-space: pre-wrap;
  color: #4b5563;
}

/* HIGHLIGHT BOXES */
.highlight-box {
  background: #f3f7ff;
  border-radius: 10px;
  border: 1px solid #bfdbfe;
  padding: 10px 12px 10px;
  margin: 14px 0;
  font-size: 14px;
}

.highlight-box h2,
.highlight-box h3 {
  margin-top: 0;
  margin-bottom: 6px;
}

/* FAQ ACCORDION */
.faq-accordion {
  margin-top: 10px;
}

.faq-item {
  border-radius: 10px;
  border: 1px solid #e5e7eb;
  background: #f9fafb;
  margin-bottom: 8px;
  overflow: hidden;
}

.faq-toggle {
  width: 100%;
  padding: 9px 10px;
  border: none;
  outline: none;
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  cursor: pointer;
}

.faq-question-text {
  font-size: 13px;
  text-align: left;
  color: #0f172a;
  font-weight: 500;
}

.faq-icon {
  font-size: 18px;
  width: 18px;
  text-align: center;
  color: #64748b;
  transition: transform 0.2s ease, color 0.2s ease;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  color: #2563eb;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 10px;
  transition: max-height 0.25s ease, padding-bottom 0.25s ease;
}

.faq-answer p {
  margin-top: 4px;
  margin-bottom: 8px;
  font-size: 13px;
}

.faq-item.active .faq-answer {
  padding-bottom: 8px;
}

/* BOTTOM CTA */
.bottom-cta {
  margin-top: 18px;
}

.bottom-cta-inner {
  border-radius: 16px;
  padding: 16px 16px 14px;
  background: radial-gradient(circle at left, #dbeafe 0, #eff6ff 35%, #ffffff 80%);
  border: 1px solid #bfdbfe;
  text-align: left;
}

.bottom-cta-inner h2 {
  font-size: 18px;
  margin-bottom: 6px;
  color: #0f172a;
}

.bottom-cta-inner p {
  font-size: 13px;
  color: #4b5563;
  margin-bottom: 10px;
}

.cta-button {
  display: inline-block;
  padding: 9px 18px;
  border-radius: 999px;
  background: linear-gradient(135deg, #1d4ed8, #2563eb);
  color: #f9fafb;
  font-size: 13px;
  font-weight: 600;
  box-shadow: 0 12px 26px rgba(37, 99, 235, 0.4);
  margin-bottom: 6px;
}

.cta-button:hover {
  filter: brightness(1.05);
}

.cta-note {
  font-size: 11px !important;
  color: #6b7280 !important;
}

/* SIDEBAR */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.sidebar-card {
  background: #ffffff;
  border-radius: 14px;
  border: 1px solid #d4d4dd;
  padding: 12px 14px;
  box-shadow: 0 10px 26px rgba(148, 163, 184, 0.3);
}

.sidebar-card h3 {
  font-size: 14px;
  margin-bottom: 6px;
  color: #0f172a;
}

.sidebar-card ul {
  list-style: none;
  font-size: 13px;
  color: #4b5563;
}

.sidebar-card ul li + li {
  margin-top: 4px;
}

.sidebar-card.highlight {
  border-color: #bfdbfe;
  background: #f3f7ff;
}

.toc-list li + li {
  margin-top: 4px;
}

.toc-list a {
  font-size: 13px;
  color: #1d4ed8;
}

.toc-list a:hover {
  text-decoration: underline;
}


/* RESPONSIVE */
@media (max-width: 900px) {
  .site-header {
    position: static;
  }
}

@media (max-width: 768px) {
  .main-nav ul {
    display: none; /* simple mobile: hide nav links */
  }

  .hero-box {
    padding: 16px;
  }

  .hero-title {
    font-size: 21px;
  }

  .article-card {
    padding: 16px;
  }

  .bottom-cta-inner {
    padding: 14px;
  }
}