/* Google Pixel-inspired CSS for index.html */

:root {
  /* Color System - Google Pixel Inspired */
  --pixel-primary: #4285F4;       /* Google Blue */
  --pixel-secondary: #34A853;     /* Google Green */
  --pixel-tertiary: #FBBC05;      /* Google Yellow */
  --pixel-quaternary: #EA4335;    /* Google Red */
  --pixel-surface: #FFFFFF;       /* Surface color */
  --pixel-background: #F8F9FA;    /* Background color */
  --pixel-on-surface: #202124;    /* Text on surface */
  --pixel-on-background: #3C4043; /* Text on background */
  --pixel-on-primary: #FFFFFF;    /* Text on primary */
  --pixel-border: #DADCE0;        /* Border color */
  --pixel-shadow: rgba(60, 64, 67, 0.3); /* Shadow color */
  --pixel-overlay: rgba(32, 33, 36, 0.6); /* Overlay color */
  
  /* Elevation - Material Design Shadows */
  --elevation-1: 0 1px 2px 0 rgba(60, 64, 67, 0.3), 0 1px 3px 1px rgba(60, 64, 67, 0.15);
  --elevation-2: 0 1px 2px 0 rgba(60, 64, 67, 0.3), 0 2px 6px 2px rgba(60, 64, 67, 0.15);
  --elevation-3: 0 1px 3px 0 rgba(60, 64, 67, 0.3), 0 4px 8px 3px rgba(60, 64, 67, 0.15);
  --elevation-4: 0 2px 3px 0 rgba(60, 64, 67, 0.3), 0 6px 10px 4px rgba(60, 64, 67, 0.15);
  --elevation-5: 0 4px 4px 0 rgba(60, 64, 67, 0.3), 0 8px 12px 6px rgba(60, 64, 67, 0.15);
  
  /* Spacing System */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 48px;
  --spacing-xxxl: 64px;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 28px;
  --radius-pill: 500px;
  --radius-circular: 50%;
  
  /* Typography */
  --font-family: 'Google Sans', 'Roboto', sans-serif;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-bold: 700;
  
  /* Font Sizes */
  --text-xs: 12px;
  --text-sm: 14px;
  --text-md: 16px;
  --text-lg: 18px;
  --text-xl: 20px;
  --text-2xl: 24px;
  --text-3xl: 30px;
  --text-4xl: 36px;
  --text-5xl: 48px;
  
  /* Line Heights */
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  
  /* Transitions */
  --transition-fast: 150ms;
  --transition-normal: 250ms;
  --transition-slow: 350ms;
  --transition-timing: cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-family);
  color: var(--pixel-on-background);
  background-color: var(--pixel-background);
  line-height: var(--line-height-normal);
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-medium);
  line-height: var(--line-height-tight);
  color: var(--pixel-on-surface);
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: var(--text-4xl);
  letter-spacing: -0.5px;
}

h2 {
  font-size: var(--text-3xl);
  letter-spacing: -0.25px;
}

h3 {
  font-size: var(--text-2xl);
}

h4 {
  font-size: var(--text-xl);
}

h5 {
  font-size: var(--text-lg);
}

h6 {
  font-size: var(--text-md);
}

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

a {
  color: var(--pixel-primary);
  text-decoration: none;
  transition: color var(--transition-fast) var(--transition-timing);
}

a:hover {
  color: #1A73E8; /* Darker blue on hover */
  text-decoration: underline;
}

/* Container */
.pixel-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* Header */
.pixel-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--pixel-surface);
  box-shadow: var(--elevation-1);
  z-index: 1000;
  transition: box-shadow var(--transition-normal) var(--transition-timing);
}

.pixel-header.scrolled {
  box-shadow: var(--elevation-2);
}

.pixel-header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.pixel-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.pixel-logo img {
  height: 36px;
  width: auto;
}

.pixel-logo-text {
  font-size: var(--text-lg);
  font-weight: var(--font-weight-medium);
  color: var(--pixel-on-surface);
}

/* Navigation */
.pixel-nav {
  display: flex;
  align-items: center;
}

.pixel-nav-list {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
}

.pixel-nav-item a {
  color: var(--pixel-on-surface);
  font-size: var(--text-md);
  font-weight: var(--font-weight-medium);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-pill);
  transition: background-color var(--transition-fast) var(--transition-timing);
}

.pixel-nav-item a:hover {
  background-color: rgba(32, 33, 36, 0.04);
  text-decoration: none;
}

.pixel-nav-item a.active {
  color: var(--pixel-primary);
  background-color: rgba(66, 133, 244, 0.08);
}

/* Mobile Menu */
.pixel-mobile-menu-button {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
  color: var(--pixel-on-surface);
  font-size: var(--text-xl);
}

.pixel-mobile-menu {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  width: 100%;
  background-color: var(--pixel-surface);
  box-shadow: var(--elevation-2);
  padding: var(--spacing-md) 0;
  z-index: 999;
}

.pixel-mobile-nav-list {
  list-style: none;
}

.pixel-mobile-nav-item {
  padding: var(--spacing-sm) var(--spacing-lg);
}

.pixel-mobile-nav-item a {
  color: var(--pixel-on-surface);
  font-size: var(--text-md);
  font-weight: var(--font-weight-medium);
  display: block;
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast) var(--transition-timing);
}

.pixel-mobile-nav-item a:hover {
  background-color: rgba(32, 33, 36, 0.04);
  text-decoration: none;
}

.pixel-mobile-nav-item a.active {
  color: var(--pixel-primary);
  background-color: rgba(66, 133, 244, 0.08);
}

/* Hero Section */
.pixel-hero {
  padding-top: 120px;
  padding-bottom: var(--spacing-xxxl);
  background-color: var(--pixel-background);
  position: relative;
  overflow: hidden;
}

.pixel-hero-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-xxl);
}

.pixel-hero-content {
  flex: 1;
  max-width: 600px;
}

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

.pixel-hero-subtitle {
  font-size: var(--text-xl);
  color: var(--pixel-on-background);
  margin-bottom: var(--spacing-xl);
  line-height: var(--line-height-relaxed);
}

.pixel-hero-image {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.pixel-hero-image img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--elevation-3);
}

/* Buttons */
.pixel-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-pill);
  font-size: var(--text-md);
  font-weight: var(--font-weight-medium);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-normal) var(--transition-timing);
  border: none;
  outline: none;
  position: relative;
  overflow: hidden;
}

.pixel-button-primary {
  background-color: var(--pixel-primary);
  color: var(--pixel-on-primary);
  box-shadow: var(--elevation-1);
}

.pixel-button-primary:hover {
  background-color: #1A73E8; /* Darker blue on hover */
  box-shadow: var(--elevation-2);
}

.pixel-button-secondary {
  background-color: transparent;
  color: var(--pixel-primary);
  border: 1px solid var(--pixel-border);
}

.pixel-button-secondary:hover {
  background-color: rgba(66, 133, 244, 0.04);
  border-color: var(--pixel-primary);
}

.pixel-button-icon {
  margin-right: var(--spacing-sm);
}

/* Ripple Effect */
.pixel-ripple {
  position: absolute;
  border-radius: 50%;
  transform: scale(0);
  animation: ripple 0.6s linear;
  background-color: rgba(255, 255, 255, 0.3);
}

@keyframes ripple {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

/* Cards */
.pixel-card {
  background-color: var(--pixel-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--elevation-1);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
  transition: box-shadow var(--transition-normal) var(--transition-timing), transform var(--transition-normal) var(--transition-timing);
}

.pixel-card:hover {
  box-shadow: var(--elevation-2);
  transform: translateY(-2px);
}

.pixel-card-title {
  font-size: var(--text-xl);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--spacing-md);
  color: var(--pixel-on-surface);
}

.pixel-card-content {
  color: var(--pixel-on-background);
}

/* Sections */
.pixel-section {
  padding: var(--spacing-xxxl) 0;
}

.pixel-section-title {
  text-align: center;
  margin-bottom: var(--spacing-xxl);
}

.pixel-section-title h2 {
  font-size: var(--text-3xl);
  color: var(--pixel-on-surface);
  margin-bottom: var(--spacing-sm);
}

.pixel-section-title p {
  font-size: var(--text-lg);
  color: var(--pixel-on-background);
  max-width: 600px;
  margin: 0 auto;
}

/* Grid Layout */
.pixel-grid {
  display: grid;
  gap: var(--spacing-lg);
}

.pixel-grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

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

.pixel-grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* Features Section */
.pixel-features {
  background-color: var(--pixel-background);
}

.pixel-feature-card {
  text-align: center;
  padding: var(--spacing-xl);
}

.pixel-feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: var(--radius-circular);
  margin-bottom: var(--spacing-lg);
  background-color: rgba(66, 133, 244, 0.1);
  color: var(--pixel-primary);
  font-size: var(--text-2xl);
}

/* About Section */
.pixel-about {
  background-color: var(--pixel-surface);
}

.pixel-about-container {
  display: flex;
  align-items: center;
  gap: var(--spacing-xxl);
}

.pixel-about-image {
  flex: 1;
}

.pixel-about-image img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--elevation-2);
}

.pixel-about-content {
  flex: 1;
}

/* Stats Section */
.pixel-stats {
  background-color: var(--pixel-primary);
  color: var(--pixel-on-primary);
  padding: var(--spacing-xxl) 0;
}

.pixel-stat-item {
  text-align: center;
}

.pixel-stat-number {
  font-size: var(--text-4xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-sm);
}

.pixel-stat-label {
  font-size: var(--text-md);
  opacity: 0.9;
}

/* Testimonials */
.pixel-testimonials {
  background-color: var(--pixel-background);
}

.pixel-testimonial-card {
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  background-color: var(--pixel-surface);
  box-shadow: var(--elevation-1);
  position: relative;
}

.pixel-testimonial-content {
  font-size: var(--text-md);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-lg);
  position: relative;
}

.pixel-testimonial-content::before {
  content: '"';
  font-size: 4rem;
  color: rgba(66, 133, 244, 0.1);
  position: absolute;
  top: -2rem;
  left: -1rem;
  font-family: Georgia, serif;
}

.pixel-testimonial-author {
  display: flex;
  align-items: center;
}

.pixel-testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-circular);
  margin-right: var(--spacing-md);
  overflow: hidden;
}

.pixel-testimonial-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.pixel-testimonial-info h4 {
  font-size: var(--text-md);
  margin-bottom: var(--spacing-xs);
}

.pixel-testimonial-info p {
  font-size: var(--text-sm);
  color: var(--pixel-on-background);
  margin: 0;
}

/* CTA Section */
.pixel-cta {
  background-color: var(--pixel-surface);
  text-align: center;
  padding: var(--spacing-xxxl) 0;
}

.pixel-cta-title {
  font-size: var(--text-3xl);
  margin-bottom: var(--spacing-lg);
}

.pixel-cta-text {
  font-size: var(--text-lg);
  max-width: 600px;
  margin: 0 auto var(--spacing-xl);
}

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

/* Footer */
.pixel-footer {
  background-color: var(--pixel-on-surface);
  color: var(--pixel-surface);
  padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

.pixel-footer-container {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-xl);
}

.pixel-footer-brand {
  margin-bottom: var(--spacing-lg);
}

.pixel-footer-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.pixel-footer-logo img {
  height: 32px;
  width: auto;
}

.pixel-footer-description {
  font-size: var(--text-sm);
  opacity: 0.8;
  line-height: var(--line-height-relaxed);
}

.pixel-footer-heading {
  font-size: var(--text-md);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--spacing-lg);
  color: var(--pixel-surface);
}

.pixel-footer-links {
  list-style: none;
}

.pixel-footer-link {
  margin-bottom: var(--spacing-md);
}

.pixel-footer-link a {
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--text-sm);
  transition: color var(--transition-fast) var(--transition-timing);
}

.pixel-footer-link a:hover {
  color: var(--pixel-surface);
  text-decoration: none;
}

.pixel-footer-social {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.pixel-social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-circular);
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--pixel-surface);
  transition: background-color var(--transition-fast) var(--transition-timing);
}

.pixel-social-icon:hover {
  background-color: rgba(255, 255, 255, 0.2);
}

.pixel-footer-bottom {
  margin-top: var(--spacing-xxl);
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.pixel-copyright {
  font-size: var(--text-sm);
  opacity: 0.7;
}

.pixel-footer-bottom-links {
  display: flex;
  gap: var(--spacing-lg);
}

.pixel-footer-bottom-link a {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.7);
}

/* Back to Top Button */
.pixel-back-to-top {
  position: fixed;
  bottom: var(--spacing-lg);
  right: var(--spacing-lg);
  width: 48px;
  height: 48px;
  border-radius: var(--radius-circular);
  background-color: var(--pixel-primary);
  color: var(--pixel-on-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--elevation-2);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-normal) var(--transition-timing), transform var(--transition-normal) var(--transition-timing);
  z-index: 99;
}

.pixel-back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
}

.pixel-back-to-top:hover {
  background-color: #1A73E8; /* Darker blue on hover */
}

/* Animations */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .pixel-hero-container {
    flex-direction: column;
  }
  
  .pixel-hero-content,
  .pixel-hero-image {
    max-width: 100%;
  }
  
  .pixel-grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .pixel-about-container {
    flex-direction: column;
  }
  
  .pixel-footer-container {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl) var(--spacing-lg);
  }
}

@media (max-width: 768px) {
  :root {
    --text-5xl: 36px;
    --text-4xl: 30px;
    --text-3xl: 24px;
    --text-2xl: 20px;
  }
  
  .pixel-nav-list {
    display: none;
  }
  
  .pixel-mobile-menu-button {
    display: block;
  }
  
  .pixel-mobile-menu.open {
    display: block;
  }
  
  .pixel-grid-3,
  .pixel-grid-2 {
    grid-template-columns: 1fr;
  }
  
  .pixel-footer-container {
    grid-template-columns: 1fr;
  }
  
  .pixel-cta-buttons {
    flex-direction: column;
    gap: var(--spacing-md);
  }
  
  .pixel-footer-bottom {
    flex-direction: column;
    gap: var(--spacing-lg);
    text-align: center;
  }
}

@media (max-width: 480px) {
  .pixel-header-container {
    height: 56px;
  }
  
  .pixel-logo img {
    height: 28px;
  }
  
  .pixel-hero {
    padding-top: 100px;
  }
  
  .pixel-hero-title {
    font-size: var(--text-4xl);
  }
  
  .pixel-hero-subtitle {
    font-size: var(--text-lg);
  }
  
  .pixel-section {
    padding: var(--spacing-xxl) 0;
  }
  
  .pixel-footer-social {
    justify-content: center;
  }
}