/* ==========================================================================
   AI-Europa Premium Theme Styles
   Mobile-first approach with glassmorphism and deep dark aesthetics.
   ========================================================================== */

:root {
  /* Color Palette */
  --bg-primary: #050505;
  --bg-secondary: #0f1115;
  --text-primary: #ffffff;
  --text-secondary: #a0aab2;
  
  --accent-cyan: #00f0ff;
  --accent-purple: #8a2be2;
  --accent-red: #ff3366;
  --accent-yellow: #ffcc00;
  --accent-green: #00ff66;
  
  --glass-bg: rgba(20, 22, 28, 0.4);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-highlight: rgba(255, 255, 255, 0.15);

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Layout */
  --max-width: 1200px;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  
  /* Radii */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 9999px;

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection {
  background-color: var(--accent-purple);
  color: white;
}

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

/* Ambient Background Glows */
.ambient-glow {
  position: absolute;
  width: 60vw;
  height: 60vw;
  border-radius: 50%;
  filter: blur(100px);
  z-index: -1;
  opacity: 0.15;
  pointer-events: none;
  animation: pulse 10s infinite alternate ease-in-out;
}

.glow-1 {
  top: -10vw;
  left: -10vw;
  background: radial-gradient(circle, var(--accent-purple) 0%, transparent 70%);
}

.glow-2 {
  top: 40vh;
  right: -20vw;
  background: radial-gradient(circle, var(--accent-cyan) 0%, transparent 70%);
  animation-delay: -5s;
}

@keyframes pulse {
  0% { transform: scale(1) translate(0, 0); opacity: 0.15; }
  100% { transform: scale(1.1) translate(20px, 30px); opacity: 0.25; }
}

/* Typography Enhancements */
h1, h2, h3 {
  letter-spacing: -0.02em;
  line-height: 1.1;
  font-weight: 800;
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
}

/* Navigation - Glassmorphism */
.glass-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: var(--spacing-sm) 0;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  z-index: 100;
  transition: padding var(--transition-fast), background var(--transition-fast);
}

.glass-nav.scrolled {
  padding: 0.75rem 0;
  background: rgba(5, 5, 5, 0.85);
}

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

.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.03em;
}

.logo {
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  font-weight: 700;
}

.brand-text {
  background: linear-gradient(90deg, #fff, #a0aab2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Buttons */
.btn-primary, .btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-pill);
  transition: all var(--transition-fast);
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  color: var(--bg-primary);
  border: none;
  box-shadow: 0 4px 14px rgba(138, 43, 226, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(138, 43, 226, 0.5);
}

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

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.3);
}

.connect-btn {
  padding: 0.5rem 1.25rem;
  font-size: 0.85rem;
}

/* Main Layout */
main {
  padding-top: 100px;
}

/* Hero Section */
.hero-section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  min-height: calc(100vh - 100px);
  justify-content: center;
}

.badge {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid rgba(0, 240, 255, 0.2);
  border-radius: var(--radius-pill);
  margin-bottom: var(--spacing-md);
}

.headline {
  font-size: clamp(3rem, 8vw, 5rem);
  margin-bottom: var(--spacing-sm);
}

.subheadline {
  font-size: clamp(1.1rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: var(--spacing-md);
  font-weight: 300;
}

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

/* Glass Card / Code Window */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  overflow: hidden;
  position: relative;
}

/* Subtle border gradient effect on hover */
.glass-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(255,255,255,0.2), rgba(255,255,255,0));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition-normal);
  pointer-events: none;
}

.glass-card:hover::before {
  opacity: 1;
}

.code-window {
  width: 100%;
}

.window-header {
  padding: 1rem;
  display: flex;
  gap: 0.5rem;
  border-bottom: 1px solid var(--glass-border);
  background: rgba(0,0,0,0.2);
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.dot.red { background-color: var(--accent-red); }
.dot.yellow { background-color: var(--accent-yellow); }
.dot.green { background-color: var(--accent-green); }

.window-body {
  padding: 1.5rem;
  overflow-x: auto;
}

pre {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

code .keyword { color: var(--accent-purple); }
code .variable { color: var(--text-primary); }
code .string { color: var(--accent-green); }
code .property { color: var(--accent-cyan); }
code .boolean { color: var(--accent-yellow); }
code .comment { color: #666; font-style: italic; }
code .method { color: #569cd6; }

/* Features Section */
.features-section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.section-header h2 {
  font-size: clamp(2rem, 5vw, 3rem);
  margin-bottom: 0.5rem;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

.feature-card {
  padding: var(--spacing-md);
  transition: transform var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-5px);
}

.icon-wrapper {
  display: inline-flex;
  padding: 1rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  color: var(--accent-cyan);
  margin-bottom: 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

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

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.5;
}

/* Footer Section */
.glass-footer {
  margin-top: var(--spacing-xl);
  border-top: 1px solid var(--glass-border);
  background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
  padding: var(--spacing-lg) var(--spacing-md) var(--spacing-md);
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.footer-brand .slogan {
  color: var(--text-secondary);
  margin-top: 0.5rem;
  font-size: 0.9rem;
}

.footer-info {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.founder {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.founder strong {
  color: var(--text-primary);
}

.contact-link {
  color: var(--accent-cyan);
  font-weight: 600;
  display: inline-block;
}

.contact-link:hover {
  text-shadow: 0 0 10px rgba(0, 240, 255, 0.5);
}

.footer-bottom {
  max-width: var(--max-width);
  margin: 0 auto;
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--glass-border);
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.85rem;
}

/* Animations */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }

/* Initial state for JS scroll reveal */
.scroll-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.scroll-reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

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

/* Responsive Design (Desktop First) */
@media (min-width: 768px) {
  .hero-section {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
  
  .hero-content {
    flex: 1;
    max-width: 50%;
  }
  
  .hero-visual {
    flex: 1;
    display: flex;
    justify-content: flex-end;
  }
  
  .hero-actions {
    flex-direction: row;
  }

  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer-container {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-end;
  }
  
  .footer-info {
    text-align: right;
  }
}