:root {
  --bg-main: linear-gradient(135deg, #0f1115 0%, #141824 40%, #1a1f2e 100%);
  --bg-section: #161a22;
  --bg-section-dark: #11141a;
  --glass-bg: rgba(255, 255, 255, 0.04);
  --glass-border: rgba(255, 255, 255, 0.08);
  --accent-primary: #6C5CE7;
  --accent-secondary: #00BFFF;
  --highlight: #00F5FF;
  --btn-gradient: linear-gradient(90deg, #6C5CE7, #00BFFF);
  --text-primary: #F8FAFC;
  --text-secondary: #A0AEC0;
  --text-muted: #718096;
  --border-radius: 16px;
  --border-radius-lg: 20px;
  --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 20px rgba(108, 92, 231, 0.3);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --spacing-xs: 1rem;
  --spacing-sm: 1.5rem;
  --spacing-md: 2.5rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-main);
  z-index: -2;
  animation: bgShift 20s ease-in-out infinite alternate;
}

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

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

@media (min-width: 1200px) {
  .container {
    padding: 0 2.5rem;
  }
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(12px);
  background: rgba(22, 26, 34, 0.9);
  border-bottom: 1px solid rgba(108, 92, 231, 0.2);
  transition: var(--transition);
}

.header.scrolled {
  background: rgba(22, 26, 34, 0.95);
  box-shadow: var(--shadow-glass);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--btn-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
}

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

.nav-list a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  position: relative;
  transition: var(--transition);
}

.nav-list a:hover,
.nav-list a.active {
  color: var(--text-primary);
}

.nav-list a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--btn-gradient);
  transition: width 0.3s ease;
}

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

.cta-header {
  padding: 0.75rem 1.5rem;
  background: var(--btn-gradient);
  color: white;
  text-decoration: none;
  border-radius: var(--border-radius);
  font-weight: 500;
  transition: var(--transition);
  border: 1px solid transparent;
}

.cta-header:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
  border-color: rgba(255, 255, 255, 0.2);
}

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

.hamburger span {
  width: 25px;
  height: 3px;
  background: var(--accent-primary);
  transition: var(--transition);
}

/* Hero */
.hero {
  text-align: center;
  padding: var(--spacing-xl) 0;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(108, 92, 231, 0.1) 0%, transparent 70%);
  animation: glowPulse 3s ease-in-out infinite alternate;
  z-index: -1;
}

@keyframes glowPulse {
  0% { opacity: 0.5; transform: translateX(-50%) scale(1); }
  100% { opacity: 0.8; transform: translateX(-50%) scale(1.1); }
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 2.5rem;
}

.cta-hero {
  display: inline-block;
  padding: 1.25rem 3rem;
  background: var(--btn-gradient);
  color: white;
  font-size: 1.125rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--border-radius);
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(108, 92, 231, 0.3);
}

.cta-hero:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 8px 40px rgba(108, 92, 231, 0.5);
}

/* Game Section */
.game-section {
  padding: 6rem 0;
  background: var(--bg-section);
  position: relative;
}

.game-wrapper {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-glass);
  overflow: hidden;
  transition: var(--transition);
  max-width: 1300px;
  margin: 0 auto;
}

.game-wrapper:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), var(--shadow-glow);
}

.game-frame {
  width: 100%;
  height: 80vh;
  min-height: 700px;
  border: none;
  display: block;
  border-radius: var(--border-radius-lg);
}

@media (min-width: 1400px) {
  .game-frame {
    height: 900px;
  }
}

/* Sections */
.section {
  padding: var(--spacing-lg) 0;
  background: var(--bg-section);
}

.section-alt {
  background: var(--bg-section-dark);
}

.section h2 {
  text-align: center;
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 3rem;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Legal Cards */
.legal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.legal-card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  padding: 2rem;
  text-align: center;
  transition: var(--transition);
}

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

.legal-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1.5rem;
  background: var(--btn-gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: white;
}

.legal-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.legal-card p {
  color: var(--text-secondary);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  background: var(--btn-gradient);
  color: white;
  text-decoration: none;
  border-radius: var(--border-radius);
  font-weight: 500;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

.btn-secondary {
  background: transparent;
  border: 1px solid var(--accent-primary);
  color: var(--accent-primary);
}

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

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

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

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

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

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.1);
}

/* Footer */
.footer {
  background: var(--bg-section-dark);
  padding: 4rem 0 2rem;
  border-top: 1px solid var(--glass-border);
}

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

.footer h4 {
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.footer a {
  color: var(--text-secondary);
  text-decoration: none;
  display: block;
  margin-bottom: 0.5rem;
  transition: var(--transition);
}

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

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

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

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.6s ease forwards;
}

/* Media Queries Mobile First */
@media (max-width: 768px) {
  .nav-list {
    position: fixed;
    top: 0;
    right: -100%;
    height: 100vh;
    width: 300px;
    background: rgba(22, 26, 34, 0.98);
    backdrop-filter: blur(12px);
    flex-direction: column;
    justify-content: flex-start;
    padding-top: 5rem;
    gap: 1rem;
    transition: right 0.3s ease;
  }

  .nav-list.active {
    right: 0;
  }

  .hamburger {
    display: flex;
  }

  .cta-header {
    display: none;
  }

  .hero {
    padding: var(--spacing-lg) 0;
  }

  .game-section {
    padding: 3rem 0;
  }

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

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

  .container {
    padding: 0 1rem;
  }
}

@media (min-width: 769px) {
  .fade-in {
    animation-delay: calc(0.1s * var(--order, 0));
  }
}

/* Page specific */
.page-content {
  max-width: 800px;
  margin: 0 auto;
}

.responsible-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}