/* Google Pixel Inspired Design System */
:root {
  /* Color System */
  --google-blue: #4285F4;
  --google-red: #EA4335;
  --google-yellow: #FBBC05;
  --google-green: #34A853;
  --google-gray-50: #F8F9FA;
  --google-gray-100: #F1F3F4;
  --google-gray-200: #E8EAED;
  --google-gray-300: #DADCE0;
  --google-gray-400: #BDC1C6;
  --google-gray-500: #9AA0A6;
  --google-gray-600: #80868B;
  --google-gray-700: #5F6368;
  --google-gray-800: #3C4043;
  --google-gray-900: #202124;
  
  /* Elevation */
  --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);
  
  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 48px;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-pill: 9999px;
  
  /* Transitions */
  --transition-fast: 0.1s ease;
  --transition-normal: 0.2s ease;
  --transition-slow: 0.3s ease;
}

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

body {
  font-family: 'Google Sans', 'Roboto', sans-serif;
  line-height: 1.5;
  background-color: var(--google-gray-50);
  color: var(--google-gray-900);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1 {
  font-size: 2.5rem;
  font-weight: 500;
  letter-spacing: -0.5px;
  margin-bottom: var(--spacing-lg);
  color: var(--google-gray-900);
}

h2 {
  font-size: 2rem;
  font-weight: 500;
  letter-spacing: -0.25px;
  margin-bottom: var(--spacing-md);
  color: var(--google-gray-900);
}

h3 {
  font-size: 1.5rem;
  font-weight: 500;
  margin-bottom: var(--spacing-md);
  color: var(--google-gray-800);
}

h4 {
  font-size: 1.25rem;
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
  color: var(--google-gray-800);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--google-gray-700);
}

/* Layout Components */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-xxl) 0;
}

.card {
  background-color: white;
  border-radius: var(--radius-md);
  box-shadow: var(--elevation-1);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  transition: box-shadow var(--transition-normal);
}

.card:hover {
  box-shadow: var(--elevation-2);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-pill);
  font-weight: 500;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: none;
  outline: none;
  height: 36px;
}

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

.btn-primary:hover {
  background-color: #3367D6;
  box-shadow: var(--elevation-1);
}

.btn-secondary {
  background-color: white;
  color: var(--google-blue);
  border: 1px solid var(--google-gray-300);
}

.btn-secondary:hover {
  background-color: var(--google-gray-100);
  box-shadow: var(--elevation-1);
}

/* Form Elements */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-size: 0.875rem;
  color: var(--google-gray-700);
}

.form-control {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--google-gray-300);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  transition: border-color var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--google-blue);
  box-shadow: 0 0 0 2px rgba(66, 133, 244, 0.2);
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--spacing-lg) 0;
}

th {
  text-align: left;
  padding: var(--spacing-md);
  background-color: var(--google-gray-100);
  color: var(--google-gray-800);
  font-weight: 500;
  border-bottom: 1px solid var(--google-gray-300);
}

td {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--google-gray-200);
  color: var(--google-gray-700);
}

tr:hover {
  background-color: var(--google-gray-50);
}

/* FAQ Accordion */
.faq-item {
  border-bottom: 1px solid var(--google-gray-200);
  margin-bottom: var(--spacing-md);
}

.faq-question {
  padding: var(--spacing-md) 0;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 500;
  color: var(--google-gray-800);
}

.faq-answer {
  padding: 0 0 var(--spacing-md) 0;
  color: var(--google-gray-700);
}

/* Responsive Utilities */
@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.5rem;
  }
  
  .section {
    padding: var(--spacing-xl) 0;
  }
  
  .card {
    padding: var(--spacing-md);
  }
}

/* Animation Utilities */
.fade-in {
  animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.slide-up {
  animation: slideUp 0.5s ease-in-out;
}

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* Material Design Ripple Effect */
.ripple {
  position: relative;
  overflow: hidden;
}

.ripple:after {
  content: "";
  display: block;
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  pointer-events: none;
  background-image: radial-gradient(circle, #fff 10%, transparent 10.01%);
  background-repeat: no-repeat;
  background-position: 50%;
  transform: scale(10, 10);
  opacity: 0;
  transition: transform 0.5s, opacity 1s;
}

.ripple:active:after {
  transform: scale(0, 0);
  opacity: 0.3;
  transition: 0s;
}