:root {
  /* Colors */
  --bg-primary: #0f1115;
  --bg-secondary: #161a22;
  --card-bg: rgba(22, 26, 34, 0.85);
  --card-bg-hover: rgba(22, 26, 34, 0.95);
  --accent-primary: #7c5cff;
  --accent-secondary: #00d4ff;
  --text-primary: #f5f7fa;
  --text-secondary: #9aa4b2;
  --text-muted: #6b7280;
  --border-subtle: rgba(124, 92, 255, 0.2);
  --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 20px rgba(124, 92, 255, 0.3);
  --gradient-accent: linear-gradient(135deg, #7c5cff 0%, #4c6fff 100%);
  --gradient-glow: linear-gradient(135deg, rgba(124, 92, 255, 0.2) 0%, rgba(76, 111, 255, 0.1) 100%);

  /* Spacing */
  --section-spacing-mobile: 3rem;
  --section-spacing-tablet: 4rem;
  --section-spacing-desktop: 6rem;
  --container-padding: 1.5rem;
  --container-padding-wide: 2.5rem;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-size-xl: clamp(2.5rem, 5vw, 4rem);
  --font-size-lg: clamp(1.75rem, 4vw, 2.5rem);
  --font-size-md: clamp(1.25rem, 2.5vw, 1.5rem);
  --font-size-sm: clamp(0.875rem, 1.5vw, 1rem);
  --font-size-xs: 0.75rem;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-smooth: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-family);
  background: var(--bg-primary);
  background-attachment: fixed;
  background-image: 
    radial-gradient(circle at 20% 80%, rgba(124, 92, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
    linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 30% 30%, rgba(124, 92, 255, 0.05) 0%, transparent 40%),
    radial-gradient(circle at 70% 70%, rgba(0, 212, 255, 0.05) 0%, transparent 40%);
  pointer-events: none;
  z-index: -1;
}

/* Layout */
.main-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.section {
  padding: var(--section-spacing-mobile) 0;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.8s ease forwards;
}

.section:nth-child(1) { animation-delay: 0.1s; }
.section:nth-child(2) { animation-delay: 0.2s; }
.section:nth-child(3) { animation-delay: 0.3s; }

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Header */
header {
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(15, 17, 21, 0.95);
  border-bottom: 1px solid var(--border-subtle);
  transition: all var(--transition-smooth);
}

header.scrolled {
  background: rgba(15, 17, 21, 0.98);
  box-shadow: var(--shadow-soft);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.logo {
  font-size: var(--font-size-md);
  font-weight: 700;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
  color: var(--text-primary);
}

.nav-menu {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 2rem;
  align-items: center;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: var(--font-size-sm);
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-accent);
  transition: width var(--transition-smooth);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

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

.cta-header {
  background: var(--gradient-accent);
  color: var(--text-primary);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-smooth);
  box-shadow: 0 4px 15px rgba(124, 92, 255, 0.3);
}

.cta-header:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(124, 92, 255, 0.5);
}

/* Hero */
.hero {
  text-align: center;
  padding: calc(var(--section-spacing-mobile) * 1.5) 0;
}

.hero h1 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin: 0 0 1.5rem;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-primary) 50%, var(--accent-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.hero p {
  font-size: var(--font-size-md);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 2.5rem;
}

.disclaimers {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  max-width: 600px;
  margin: 0 auto 3rem;
}

.disclaimer-item {
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  padding: 1rem 1.5rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.disclaimer-item::before {
  content: '⚠️';
  font-size: 1.25em;
}

/* CTA Buttons */
.cta-primary {
  display: inline-block;
  background: var(--gradient-accent);
  color: var(--text-primary);
  padding: 1.25rem 3rem;
  font-size: var(--font-size-md);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-lg);
  transition: all var(--transition-smooth);
  box-shadow: 0 10px 30px rgba(124, 92, 255, 0.4);
  position: relative;
  overflow: hidden;
}

.cta-primary::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: left 0.5s;
}

.cta-primary:hover::before {
  left: 100%;
}

.cta-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 15px 40px rgba(124, 92, 255, 0.6);
}

/* Game Section */
.game-section {
  padding: calc(var(--section-spacing-mobile) * 2) 0;
}

.game-frame {
  display: flex;
  justify-content: center;
  max-width: 1300px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-soft), var(--shadow-glow);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(10px);
  background: var(--card-bg);
}

.game-frame iframe {
  width: 100%;
  height: 750px;
  border: none;
  display: block;
}

/* Info Sections */
.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 1000px;
  margin: 0 auto;
}

.info-card {
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  padding: 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  text-align: center;
  transition: all var(--transition-smooth);
}

.info-card:hover {
  transform: translateY(-5px);
  background: var(--card-bg-hover);
  box-shadow: var(--shadow-soft);
}

.info-card h3 {
  font-size: var(--font-size-md);
  margin: 0 0 1rem;
  color: var(--text-primary);
}

.info-card p {
  color: var(--text-secondary);
  margin: 0;
}

/* Page Title for Subpages */
.page-hero {
  text-align: center;
  padding: calc(var(--section-spacing-mobile) * 1.5) 0 var(--section-spacing-mobile);
}

.page-hero h1 {
  font-size: var(--font-size-lg);
  margin: 0 0 1rem;
  color: var(--text-primary);
}

/* Contact Form */
.contact-form {
  max-width: 600px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 1rem;
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: inherit;
  font-size: var(--font-size-sm);
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(124, 92, 255, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.cta-form {
  width: 100%;
  text-align: center;
}

/* Footer */
footer {
  margin-top: auto;
  padding: var(--section-spacing-mobile) 0;
  text-align: center;
  border-top: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-size: var(--font-size-xs);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

/* Responsive */
@media (min-width: 768px) {
  :root {
    --container-padding: var(--container-padding-wide);
    --section-spacing-mobile: var(--section-spacing-tablet);
  }

  .nav-menu {
    gap: 3rem;
  }

  .game-frame iframe {
    height: 850px;
  }
}

@media (min-width: 1024px) {
  :root {
    --section-spacing-mobile: var(--section-spacing-desktop);
  }

  .game-frame {
    max-width: 1300px;
  }

  .game-frame iframe {
    height: 900px;
  }
}

@media (max-width: 768px) {
  .nav-container {
    padding: 0 1rem;
    height: 60px;
  }

  .nav-menu {
    display: none; /* Hamburger on mobile if needed, but simplified */
  }

  .cta-header {
    padding: 0.5rem 1rem;
    font-size: var(--font-size-xs);
  }

  .game-frame iframe {
    height: 60vh;
    min-height: 500px;
  }

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

/* Utilities */
.text-center { text-align: center; }
.mb-0 { margin-bottom: 0; }
.w-full { width: 100%; }
/* Hide scrollbars for iframe if possible */
iframe::-webkit-scrollbar { display: none; }