/*
 * Tiation Interactive Demos - Main Stylesheet
 * Enterprise-grade dark neon theme with mobile optimization
 * Author: TiaAstor (tiatheone@protonmail.com)
 */

/* CSS Variables for theme consistency */
:root {
  --primary-cyan: #00ffff;
  --primary-magenta: #ff00ff;
  --dark-bg: #0a0a0a;
  --darker-bg: #050505;
  --accent-blue: #1a1a2e;
  --accent-blue-light: #16213e;
  --text-primary: #ffffff;
  --text-secondary: #cccccc;
  --text-muted: #888888;
  --border-primary: rgba(0, 255, 255, 0.3);
  --border-secondary: rgba(255, 255, 255, 0.1);
  --gradient-primary: linear-gradient(135deg, var(--primary-cyan) 0%, var(--primary-magenta) 100%);
  --gradient-bg: linear-gradient(135deg, var(--dark-bg) 0%, var(--accent-blue) 50%, var(--accent-blue-light) 100%);
  --shadow-primary: 0 8px 32px rgba(0, 255, 255, 0.1);
  --shadow-secondary: 0 4px 16px rgba(0, 0, 0, 0.3);
  --border-radius: 12px;
  --transition: all 0.3s ease;
}

/* Light theme variables */
@media (prefers-color-scheme: light) {
  :root {
    --dark-bg: #f8fafc;
    --darker-bg: #e2e8f0;
    --accent-blue: #ffffff;
    --accent-blue-light: #f1f5f9;
    --text-primary: #1a1a2e;
    --text-secondary: #2d3748;
    --text-muted: #4a5568;
    --border-primary: rgba(0, 255, 255, 0.6);
    --shadow-primary: 0 8px 32px rgba(0, 255, 255, 0.3);
  }
}

/* Reset and base styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background: var(--gradient-bg);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: bold;
  line-height: 1.2;
  margin-bottom: 1rem;
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p { margin-bottom: 1rem; }

a {
  color: var(--primary-cyan);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--primary-magenta);
  text-shadow: 0 0 8px currentColor;
}

/* Utility classes */
.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 8px;
  font-weight: bold;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

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

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(0, 255, 255, 0.4);
}

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

.btn-secondary:hover {
  background: var(--primary-cyan);
  color: var(--dark-bg);
  box-shadow: 0 0 20px rgba(0, 255, 255, 0.3);
}

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

.btn-outline:hover {
  background: var(--border-primary);
  transform: translateY(-1px);
}

/* Navigation */
.main-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-secondary);
  z-index: 1000;
  transition: var(--transition);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-weight: bold;
  font-size: 1.25rem;
}

.logo {
  height: 40px;
  width: auto;
}

.brand-text {
  color: var(--primary-cyan);
  text-shadow: 0 0 10px rgba(0, 255, 255, 0.3);
}

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

.nav-link {
  color: var(--text-secondary);
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  transition: var(--transition);
}

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

.nav-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.theme-toggle, .mobile-menu-toggle {
  background: none;
  border: 1px solid var(--border-secondary);
  color: var(--text-primary);
  padding: 0.5rem;
  border-radius: 6px;
  cursor: pointer;
  transition: var(--transition);
}

.theme-toggle:hover, .mobile-menu-toggle:hover {
  border-color: var(--primary-cyan);
  background: rgba(0, 255, 255, 0.1);
}

.mobile-menu-toggle {
  display: none;
}

.hamburger {
  width: 20px;
  height: 2px;
  background: currentColor;
  position: relative;
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 2px;
  background: currentColor;
  transition: var(--transition);
}

.hamburger::before { top: -6px; }
.hamburger::after { top: 6px; }

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: 100px 0 50px;
  overflow: hidden;
}

.hero-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-content {
  max-width: 600px;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 900;
  margin-bottom: 1.5rem;
  text-shadow: 0 0 20px rgba(0, 255, 255, 0.3);
}

.hero-description {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-visual {
  position: relative;
  min-height: 400px;
}

.demo-preview {
  background: rgba(26, 26, 46, 0.6);
  border: 1px solid var(--border-primary);
  border-radius: var(--border-radius);
  padding: 2rem;
  backdrop-filter: blur(10px);
  position: relative;
}

/* Hero Background */
.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
}

.grid-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(rgba(0, 255, 255, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 255, 0.1) 1px, transparent 1px);
  background-size: 50px 50px;
  opacity: 0.3;
}

.floating-elements {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

.float-element {
  position: absolute;
  width: 10px;
  height: 10px;
  background: var(--gradient-primary);
  border-radius: 50%;
  animation: float 6s ease-in-out infinite;
  animation-delay: var(--delay);
}

.float-element:nth-child(1) { top: 20%; left: 10%; }
.float-element:nth-child(2) { top: 60%; right: 20%; }
.float-element:nth-child(3) { bottom: 30%; left: 70%; }

@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(0deg); opacity: 0.7; }
  50% { transform: translateY(-20px) rotate(180deg); opacity: 1; }
}

/* Sections */
.demo-categories,
.demo-gallery,
.about-section,
.saas-section {
  padding: 100px 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.section-description {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

/* Category Cards */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.category-card {
  background: rgba(26, 26, 46, 0.4);
  border: 1px solid var(--border-secondary);
  border-radius: var(--border-radius);
  padding: 2rem;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: var(--transition);
}

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

.category-card:hover::before {
  transform: scaleX(1);
}

.category-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  display: block;
}

.category-card h3 {
  color: var(--primary-cyan);
  margin-bottom: 1rem;
}

.category-card p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.category-count {
  display: inline-block;
  background: var(--gradient-primary);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: bold;
}

/* Demo Filters */
.demo-filters {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.filter-btn {
  background: transparent;
  border: 1px solid var(--border-secondary);
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.875rem;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--gradient-primary);
  color: white;
  border-color: transparent;
}

/* Demo Grid */
.demos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

/* About Section */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.features-list {
  display: grid;
  gap: 1.5rem;
  margin-top: 2rem;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem;
  background: rgba(26, 26, 46, 0.3);
  border-radius: 8px;
  border: 1px solid var(--border-secondary);
  transition: var(--transition);
}

.feature-item:hover {
  border-color: var(--primary-cyan);
  background: rgba(26, 26, 46, 0.5);
}

.feature-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.feature-item h4 {
  color: var(--primary-cyan);
  margin-bottom: 0.5rem;
}

.feature-item p {
  color: var(--text-secondary);
  margin: 0;
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.stat-item {
  text-align: center;
  padding: 2rem;
  background: rgba(26, 26, 46, 0.4);
  border: 1px solid var(--border-secondary);
  border-radius: var(--border-radius);
  position: relative;
  overflow: hidden;
}

.stat-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
}

.stat-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--primary-cyan);
  text-shadow: 0 0 15px rgba(0, 255, 255, 0.3);
}

.stat-label {
  color: var(--text-secondary);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* SaaS Section */
.saas-section {
  background: rgba(26, 26, 46, 0.3);
  border-top: 1px solid var(--border-secondary);
  border-bottom: 1px solid var(--border-secondary);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.pricing-card {
  background: rgba(26, 26, 46, 0.6);
  border: 1px solid var(--border-secondary);
  border-radius: var(--border-radius);
  padding: 2rem;
  text-align: center;
  position: relative;
  transition: var(--transition);
}

.pricing-card.featured {
  border-color: var(--primary-cyan);
  transform: scale(1.05);
  box-shadow: var(--shadow-primary);
}

.pricing-card.featured::before {
  content: 'Most Popular';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-primary);
  color: white;
  padding: 0.25rem 1rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: bold;
  text-transform: uppercase;
}

.pricing-card h3 {
  color: var(--primary-cyan);
  margin-bottom: 1rem;
}

.price {
  font-size: 2.5rem;
  font-weight: 900;
  margin-bottom: 2rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.pricing-card ul {
  list-style: none;
  margin-bottom: 2rem;
}

.pricing-card li {
  padding: 0.5rem 0;
  color: var(--text-secondary);
  position: relative;
  padding-left: 1.5rem;
}

.pricing-card li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--primary-cyan);
  font-weight: bold;
}

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

.footer-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 3rem;
  margin-bottom: 2rem;
}

.footer-brand p {
  color: var(--text-secondary);
  margin-top: 1rem;
}

.footer-logo {
  height: 40px;
  margin-bottom: 1rem;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.footer-section h4 {
  color: var(--primary-cyan);
  margin-bottom: 1rem;
  font-size: 1rem;
}

.footer-section a {
  display: block;
  color: var(--text-secondary);
  padding: 0.25rem 0;
  transition: var(--transition);
}

.footer-section a:hover {
  color: var(--primary-cyan);
  padding-left: 0.5rem;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border-secondary);
}

.footer-bottom p {
  color: var(--text-muted);
  margin: 0;
}

.footer-socials a {
  color: var(--text-secondary);
  transition: var(--transition);
}

.footer-socials a:hover {
  color: var(--primary-cyan);
  transform: translateY(-2px);
}

/* Mobile Optimizations */
@media (max-width: 768px) {
  :root {
    font-size: 14px;
  }

  .mobile-menu-toggle {
    display: block;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 1rem;
    gap: 1rem;
    border-top: 1px solid var(--border-secondary);
  }

  .nav-menu.active {
    display: flex;
  }

  .hero {
    min-height: 80vh;
    padding: 80px 0 30px;
  }

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

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-description {
    font-size: 1.125rem;
  }

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

  .section-header {
    margin-bottom: 2rem;
  }

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

  .categories-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .demos-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .stats-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .pricing-card.featured {
    transform: none;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-links {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .demo-filters {
    gap: 0.25rem;
  }

  .filter-btn {
    font-size: 0.75rem;
    padding: 0.375rem 0.75rem;
  }
}

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

/* Print styles */
@media print {
  .main-nav,
  .hero-bg,
  .floating-elements {
    display: none !important;
  }

  body {
    background: white !important;
    color: black !important;
  }
}