/*
Theme Name: ChatElara
Description: Modern SaaS landing page theme for ChatElara AI chatbot - Netflix Style
Version: 1.0.0
Author: ChatElara Team
Text Domain: chatvanta
*/

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Poppins:wght@400;500;600;700;800&display=swap');

/* CSS Custom Properties - Netflix Brand Colors */
:root {
  /* Netflix Brand Colors */
  --netflix-red: #E50914;
  --netflix-black: #141414;
  --netflix-white: #FFFFFF;
  
  /* Professional Background Colors */
  --bg-primary: #0A0A0A;
  --bg-secondary: #1A1A1A;
  --bg-tertiary: #2A2A2A;
  --bg-card: #1F1F1F;
  --bg-elevated: #252525;
  
  /* Primary Colors (Netflix Red variations) */
  --primary-red: #E50914;
  --primary-red-dark: #B8070F;
  --primary-red-light: #FF1E2D;
  
  /* Professional Gradients */
  --gradient-primary: linear-gradient(135deg, var(--netflix-red) 0%, #B8070F 100%);
  --gradient-secondary: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  --gradient-accent: linear-gradient(135deg, var(--netflix-black) 0%, var(--netflix-red) 100%);
  --gradient-hero: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 50%, var(--bg-primary) 100%);
  --gradient-overlay: linear-gradient(180deg, rgba(10, 10, 10, 0.9) 0%, rgba(26, 26, 26, 0.95) 100%);
  
  /* Neutral Colors */
  --white: #FFFFFF;
  --black: #0A0A0A;
  --gray-50: #FAFAFA;
  --gray-100: #F5F5F5;
  --gray-200: #E5E5E5;
  --gray-300: #D4D4D4;
  --gray-400: #A3A3A3;
  --gray-500: #737373;
  --gray-600: #525252;
  --gray-700: #404040;
  --gray-800: #262626;
  --gray-900: #171717;
  
  /* Typography */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
  
  /* Font Sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;
  
  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  
  /* Professional Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.15);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.2), 0 2px 4px -2px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.25), 0 4px 6px -4px rgba(0, 0, 0, 0.2);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.3), 0 8px 10px -6px rgba(0, 0, 0, 0.25);
  --shadow-red: 0 4px 14px 0 rgba(229, 9, 20, 0.4);
  --shadow-inset: inset 0 2px 4px 0 rgba(0, 0, 0, 0.1);
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;
}

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

/* Professional Background Setup */
body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--white);
  background: var(--bg-primary);
  background-image: 
    radial-gradient(circle at 25% 25%, rgba(229, 9, 20, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 75% 75%, rgba(229, 9, 20, 0.03) 0%, transparent 50%),
    linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

/* Professional Background Patterns */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    radial-gradient(circle at 1px 1px, rgba(255, 255, 255, 0.02) 1px, transparent 0);
  background-size: 20px 20px;
  pointer-events: none;
  z-index: -1;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  color: var(--white);
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

/* Professional Button Styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  font-weight: 500;
  text-decoration: none;
  transition: all var(--transition-normal);
  cursor: pointer;
  border: none;
  font-size: var(--text-base);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transition: left var(--transition-normal);
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: var(--netflix-red);
  color: var(--white);
  box-shadow: var(--shadow-red);
}

.btn-primary:hover {
  background: var(--primary-red-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: transparent;
  color: var(--white);
  border: 2px solid var(--netflix-red);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: var(--netflix-red);
  color: var(--white);
}

/* Links */
a {
  color: var(--netflix-red);
  text-decoration: none;
  transition: color var(--transition-normal);
}

a:hover {
  color: var(--primary-red-light);
}

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

/* Professional Section Backgrounds */
.section {
  position: relative;
  overflow: hidden;
}

.section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-overlay);
  pointer-events: none;
  z-index: -1;
}

/* Responsive Design */
@media (max-width: 768px) {
  h1 { font-size: var(--text-4xl); }
  h2 { font-size: var(--text-3xl); }
  h3 { font-size: var(--text-2xl); }
  
  body {
    background-attachment: scroll;
  }
}

@media (max-width: 480px) {
  h1 { font-size: var(--text-3xl); }
  h2 { font-size: var(--text-2xl); }
  h3 { font-size: var(--text-xl); }
}

/* Utility Classes */
.text-netflix-red { color: var(--netflix-red); }
.bg-netflix-red { background-color: var(--netflix-red); }
.text-netflix-black { color: var(--netflix-black); }
.bg-netflix-black { background-color: var(--netflix-black); }
.text-white { color: var(--white); }
.bg-white { background-color: var(--white); }
.bg-professional { background: var(--bg-card); }
.bg-elevated { background: var(--bg-elevated); }