/* Thanus AI - Main Stylesheet */

/* Variables */
:root {
  /* Colors */
  --color-primary: #0B0B3B;
  --color-secondary: #00FFFF;
  --color-tertiary: #6A0DAD;
  --color-accent: #FF10F0;
  --color-dark: #050518;
  --color-light: #FFFFFF;
  --color-gray: #E0E0E0;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-tertiary) 100%);
  --gradient-accent: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-accent) 100%);
  --gradient-dark: linear-gradient(135deg, #000000 0%, var(--color-primary) 100%);
  
  /* Typography */
  --font-heading: 'Exo 2', sans-serif;
  --font-body: 'Roboto', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 8rem;
  
  /* Borders */
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 16px;
  --border-radius-xl: 24px;
  
  /* Shadows */
  --shadow-glow: 0 0 15px rgba(0, 255, 255, 0.5);
  --shadow-neon: 0 0 10px rgba(255, 16, 240, 0.7);
  --shadow-subtle: 0 4px 20px rgba(0, 0, 0, 0.15);
  
  /* Animations */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.4s ease;
  --transition-slow: 0.8s ease;
}

/* Base Styles */
body {
  font-family: var(--font-body);
  background-color: var(--color-dark);
  color: var(--color-light);
  line-height: 1.6;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 20% 30%, rgba(106, 13, 173, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(0, 255, 255, 0.1) 0%, transparent 50%);
  background-attachment: fixed;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-transform: uppercase;
  letter-spacing: 1px;
}

h1 {
  font-size: 4.5rem;
  font-weight: 900;
  margin-bottom: var(--spacing-lg);
}

h2 {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

h3 {
  font-size: 2rem;
  margin-bottom: var(--spacing-sm);
}

p {
  margin-bottom: var(--spacing-md);
  font-size: 1.1rem;
}

section {
  padding: var(--spacing-xl) var(--spacing-md);
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--spacing-lg);
}

.section-header p {
  font-size: 1.2rem;
  color: var(--color-gray);
}

/* Loader */
.loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-dark);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
}

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

.loader-brain {
  width: 100px;
  height: 100px;
  margin: 0 auto var(--spacing-md);
  border: 3px solid var(--color-secondary);
  border-radius: 50%;
  animation: pulse 1.5s infinite ease-in-out;
  position: relative;
}

.loader-brain:before, .loader-brain:after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--color-secondary);
  opacity: 0.5;
  border-radius: 50%;
}

.loader-brain:before {
  width: 80%;
  height: 80%;
  animation: pulse 1.5s infinite ease-in-out 0.2s;
}

.loader-brain:after {
  width: 60%;
  height: 60%;
  animation: pulse 1.5s infinite ease-in-out 0.4s;
}

.loader-text {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  color: var(--color-secondary);
  letter-spacing: 2px;
  animation: blink 1s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 255, 255, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 15px rgba(0, 255, 255, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 255, 255, 0); }
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 100;
  transition: var(--transition-medium);
  background: rgba(5, 5, 24, 0.8);
  backdrop-filter: blur(10px);
}

.logo {
  display: flex;
  align-items: center;
}

.logo-text {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 1.8rem;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  letter-spacing: 2px;
}

.main-nav ul {
  display: flex;
  gap: var(--spacing-md);
}

.main-nav a {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 1rem;
  color: var(--color-light);
  transition: var(--transition-fast);
  position: relative;
  padding: var(--spacing-xs) 0;
}

.main-nav a:before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-secondary);
  transition: var(--transition-fast);
}

.main-nav a:hover {
  color: var(--color-secondary);
}

.main-nav a:hover:before {
  width: 100%;
}

.cta-button {
  background: var(--gradient-accent);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-md);
  font-weight: 700;
  box-shadow: var(--shadow-glow);
  transition: var(--transition-fast);
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-neon);
}

.cta-button:before {
  display: none;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 30px;
  height: 2px;
  background-color: var(--color-light);
  transition: var(--transition-fast);
}

/* Hero Section */
.hero-section {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

.hero-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.hero-content {
  text-align: center;
  max-width: 900px;
  padding: var(--spacing-md);
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: 7rem;
  margin-bottom: var(--spacing-sm);
  position: relative;
  display: inline-block;
  text-shadow: 0 0 20px rgba(0, 255, 255, 0.5);
}

.hero-title:after {
  content: 'THANUS AI';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  color: rgba(255, 16, 240, 0.4);
  filter: blur(8px);
  animation: glitch 5s infinite alternate;
}

@keyframes glitch {
  0%, 100% { transform: translate(0); }
  20% { transform: translate(-2px, 2px); }
  40% { transform: translate(2px, -2px); }
  60% { transform: translate(-2px, -2px); }
  80% { transform: translate(2px, 2px); }
}

.hero-tagline {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 300;
  color: var(--color-secondary);
  margin-bottom: var(--spacing-md);
  letter-spacing: 4px;
}

.hero-description {
  max-width: 600px;
  margin: 0 auto var(--spacing-lg);
}

.hero-description p {
  font-size: 1.2rem;
  color: var(--color-gray);
}

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
}

.primary-button, .secondary-button {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.1rem;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-md);
  transition: var(--transition-fast);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.primary-button {
  background: var(--gradient-accent);
  color: var(--color-dark);
  box-shadow: var(--shadow-glow);
}

.primary-button:before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-light);
  z-index: -1;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-fast);
}

.primary-button:hover {
  color: var(--color-accent);
  box-shadow: var(--shadow-neon);
}

.primary-button:hover:before {
  transform: scaleX(1);
  transform-origin: left;
}

.secondary-button {
  background: transparent;
  color: var(--color-light);
  border: 2px solid var(--color-secondary);
}

.secondary-button:before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-secondary);
  z-index: -1;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-fast);
}

.secondary-button:hover {
  color: var(--color-dark);
}

.secondary-button:hover:before {
  transform: scaleX(1);
  transform-origin: left;
}

/* Features Section */
.features-section {
  background: var(--color-dark);
  position: relative;
}

.features-section:before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 20% 30%, rgba(106, 13, 173, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(0, 255, 255, 0.1) 0%, transparent 50%);
  z-index: -1;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
  max-width: 1200px;
  margin: 0 auto;
}

/* Use Cases Section */
.use-cases-section {
  background: var(--color-primary);
  position: relative;
}

.use-cases-showcase {
  max-width: 1200px;
  margin: 0 auto;
}

/* Technology Section */
.technology-section {
  position: relative;
  overflow: hidden;
}

.tech-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.technology-showcase {
  max-width: 1200px;
  margin: 0 auto;
}

/* Testimonials Section */
.testimonials-section {
  background: var(--gradient-primary);
  position: relative;
}

.testimonials-carousel {
  max-width: 1000px;
  margin: 0 auto;
}

/* Contact Section */
.contact-section {
  position: relative;
  overflow: hidden;
}

.contact-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.contact-form-container {
  max-width: 600px;
  margin: 0 auto;
  background: rgba(11, 11, 59, 0.6);
  backdrop-filter: blur(10px);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  border: 1px solid rgba(0, 255, 255, 0.2);
  box-shadow: var(--shadow-glow);
}

.contact-form {
  display: grid;
  gap: var(--spacing-md);
}

/* Footer */
.site-footer {
  background: var(--color-dark);
  padding: var(--spacing-lg) var(--spacing-md);
  position: relative;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  max-width: 1200px;
  margin: 0 auto var(--spacing-lg);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--color-gray);
  font-size: 0.9rem;
}

/* Responsive Styles */
@media (max-width: 992px) {
  h1 {
    font-size: 3.5rem;
  }
  
  h2 {
    font-size: 2.5rem;
  }
  
  .hero-title {
    font-size: 5rem;
  }
  
  .hero-tagline {
    font-size: 1.5rem;
  }
}

@media (max-width: 768px) {
  .main-nav {
    display: none;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  h1 {
    font-size: 3rem;
  }
  
  h2 {
    font-size: 2rem;
  }
  
  .hero-title {
    font-size: 4rem;
  }
  
  .hero-tagline {
    font-size: 1.2rem;
  }
  
  .hero-cta {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 2.5rem;
  }
  
  h2 {
    font-size: 1.8rem;
  }
  
  .hero-title {
    font-size: 3rem;
  }
  
  .section-header p {
    font-size: 1rem;
  }
}