/* CSS Custom Properties - App Color Scheme */
:root {
  /* Primary Colors from App */
  --primary-blue: #2563eb;
  --primary-blue-light: #3b82f6;
  --primary-blue-dark: #1d4ed8;
  
  /* Background Colors */
  --bg-primary: #f9fafb;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  
  /* Text Colors */
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --text-tertiary: #9ca3af;
  --text-white: #ffffff;
  
  /* Accent Colors */
  --accent-green: #10b981;
  --accent-red: #ef4444;
  --accent-purple: #8b5cf6;
  --accent-yellow: #f59e0b;
  --accent-pink: #ec4899;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-light) 100%);
  --gradient-accent: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-purple) 100%);
  --gradient-background: linear-gradient(135deg, #f9fafb 0%, #ffffff 50%, #f3f4f6 100%);
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Typography */
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  
  /* Transitions */
  --transition-fast: 0.15s ease-out;
  --transition-base: 0.25s ease-out;
  --transition-slow: 0.4s ease-out;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

/* Background Container */
.background-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  pointer-events: none;
}

.gradient-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-background);
  opacity: 0.95;
}

.floating-elements {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    radial-gradient(circle at 20% 20%, rgba(37, 99, 235, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 40% 60%, rgba(16, 185, 129, 0.1) 0%, transparent 50%);
  background-size: 100% 100%, 80% 80%, 60% 60%;
  background-repeat: no-repeat;
}

/* Particle Container */
.particle-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

/* Main Container */
.main-container {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  z-index: 2;
}

/* Header Styles */
.header {
  padding: var(--spacing-xl) var(--spacing-lg);
  text-align: center;
}

.logo-container {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-lg) var(--spacing-xl);
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: var(--radius-lg);
  color: var(--text-white);
  box-shadow: var(--shadow-md);
}

.logo-text .brand-name {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
  line-height: 1.2;
}

.logo-text .brand-tagline {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin: 0;
  font-weight: 500;
}

/* Hero Section */
.hero-section {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-2xl) var(--spacing-lg);
  text-align: center;
}

.hero-content {
  max-width: 600px;
  width: 100%;
}

.hero-title {
  font-size: var(--font-size-5xl);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--spacing-lg);
  color: var(--text-primary);
}

.title-line {
  display: block;
  margin-bottom: var(--spacing-xs);
}

.title-line.accent {
  background: var(--gradient-accent);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-size: 200% 200%;
}

.hero-description {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-2xl);
  line-height: 1.7;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* Email Signup Form */
.email-signup-form {
  margin-bottom: var(--spacing-2xl);
}

.form-group {
  position: relative;
}

.input-container {
  display: flex;
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xs);
  box-shadow: var(--shadow-lg);
  border: 2px solid transparent;
  transition: all var(--transition-base);
  backdrop-filter: blur(10px);
}

.input-container:focus-within {
  border-color: var(--primary-blue);
  box-shadow: var(--shadow-xl), 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.email-input {
  flex: 1;
  padding: var(--spacing-lg);
  border: none;
  background: transparent;
  font-size: var(--font-size-base);
  color: var(--text-primary);
  outline: none;
  font-family: inherit;
}

.email-input::placeholder {
  color: var(--text-tertiary);
}

.submit-button {
  position: relative;
  padding: var(--spacing-lg) var(--spacing-xl);
  background: var(--gradient-primary);
  color: var(--text-white);
  border: none;
  border-radius: var(--radius-lg);
  font-size: var(--font-size-base);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  overflow: hidden;
  min-width: 120px;
  font-family: inherit;
}

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

.submit-button:active {
  transform: translateY(0);
}

.submit-button.loading {
  cursor: not-allowed;
}

.button-text {
  display: inline-block;
  transition: opacity var(--transition-base);
}

.button-loader {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.submit-button.loading .button-text {
  opacity: 0;
}

.submit-button.loading .button-loader {
  opacity: 1;
}

.loader-circle {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top: 2px solid var(--text-white);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.form-message {
  margin-top: var(--spacing-md);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  text-align: center;
  opacity: 0;
  transform: translateY(-10px);
  transition: all var(--transition-base);
}

.form-message.show {
  opacity: 1;
  transform: translateY(0);
}

.form-message.success {
  background: rgba(16, 185, 129, 0.1);
  color: var(--accent-green);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.form-message.error {
  background: rgba(239, 68, 68, 0.1);
  color: var(--accent-red);
  border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Features Preview */
.features-preview {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-2xl);
  flex-wrap: wrap;
}

.feature-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-lg);
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
}

.feature-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--gradient-primary);
  color: var(--text-white);
  border-radius: var(--radius-md);
}

.feature-item span {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-secondary);
}


/* Footer */
.footer {
  padding: var(--spacing-2xl) var(--spacing-lg);
  text-align: center;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
}

.social-link:hover {
  background: var(--gradient-primary);
  color: var(--text-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.footer-text p {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
}

.launch-estimate {
  font-weight: 600;
  color: var(--primary-blue);
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero-title {
    font-size: var(--font-size-4xl);
  }
  
  .hero-description {
    font-size: var(--font-size-base);
  }
  
  .input-container {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .features-preview {
    gap: var(--spacing-md);
  }
  
  .feature-item {
    min-width: 120px;
  }
  
  .social-links {
    gap: var(--spacing-md);
  }
  
  .logo-container {
    flex-direction: column;
    gap: var(--spacing-sm);
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: var(--font-size-3xl);
  }
  
  .header {
    padding: var(--spacing-lg) var(--spacing-md);
  }
  
  .hero-section {
    padding: var(--spacing-lg) var(--spacing-md);
  }
  
  .footer {
    padding: var(--spacing-lg) var(--spacing-md);
  }
  
  .features-preview {
    flex-direction: column;
    align-items: center;
  }
}