/* ==========================================================================
   Design Tokens & Variables
   ========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

:root {
  /* Brand Colors */
  --color-primary-blue: #005BEA;
  --color-primary-blue-hover: #0046b8;
  --color-primary-green: #00B359;
  --color-primary-green-hover: #009349;
  
  /* Background Colors */
  --color-bg-white: #FFFFFF;
  --color-bg-secondary: #F7FAFC;
  --color-bg-tertiary: #EEF2F6;
  
  /* Text Colors */
  --color-text-navy: #0F172A;
  --color-text-body: #475569;
  --color-text-muted: #64748B;
  
  /* Accent Colors */
  --color-accent-soft-green: #E8F5E9;
  --color-accent-soft-blue: #EBF4FF;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--color-primary-blue) 0%, #00C6FB 100%);
  --gradient-green: linear-gradient(135deg, var(--color-primary-green) 0%, #00D26A 100%);
  
  /* Typography */
  --font-family-main: 'Plus Jakarta Sans', sans-serif;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 5rem;
  --spacing-4xl: 8rem;
  
  /* Shadows (Stripe-level soft shadows) */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.025);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 10px 10px -5px rgba(0, 0, 0, 0.02);
  --shadow-glow-blue: 0 10px 25px -5px rgba(0, 91, 234, 0.3);
  --shadow-glow-green: 0 10px 25px -5px rgba(0, 179, 89, 0.3);
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 0.15s ease-in-out;
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-family-main);
  background-color: var(--color-bg-white);
  color: var(--color-text-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--color-text-navy);
  font-weight: 700;
  line-height: 1.2;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(2rem, 4vw, 3rem); letter-spacing: -0.01em; }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: 1.25rem; }

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

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

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

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ==========================================================================
   Utility Classes
   ========================================================================== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--spacing-xl);
  }
}

.section {
  padding: var(--spacing-4xl) 0;
}

.section-light {
  background-color: var(--color-bg-secondary);
}

.section-blue {
  background-color: var(--color-primary-blue);
  color: var(--color-bg-white);
}

.section-blue h1, 
.section-blue h2, 
.section-blue h3, 
.section-blue p {
  color: var(--color-bg-white);
}

.text-center { text-align: center; }
.text-primary { color: var(--color-primary-blue); }
.text-green { color: var(--color-primary-green); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }
.gap-xl { gap: var(--spacing-xl); }

.grid { display: grid; }
.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 992px) {
  .grid-cols-3, .grid-cols-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .grid-cols-2, .grid-cols-3, .grid-cols-4 { grid-template-columns: repeat(1, 1fr); }
  .section { padding: var(--spacing-3xl) 0; }
}

/* ==========================================================================
   Components
   ========================================================================== */
/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  font-weight: 600;
  font-size: 1rem;
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
  gap: 8px;
  box-shadow: var(--shadow-md);
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-bg-white) !important;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-blue);
}

.btn-green {
  background: var(--gradient-green);
  color: var(--color-bg-white) !important;
}

.btn-green:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-green);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary-blue) !important;
  border: 2px solid var(--color-primary-blue);
  box-shadow: none;
}

.btn-outline:hover {
  background: var(--color-primary-blue);
  color: var(--color-bg-white) !important;
}

/* Cards */
.card {
  background: var(--color-bg-white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  border: 1px solid rgba(0,0,0,0.03);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.card-icon-wrapper {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-lg);
  background: var(--color-accent-soft-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-lg);
  color: var(--color-primary-blue);
}

.card-icon-wrapper.green {
  background: var(--color-accent-soft-green);
  color: var(--color-primary-green);
}

/* Tags/Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  background: var(--color-accent-soft-blue);
  color: var(--color-primary-blue);
  gap: 6px;
}

.badge.green {
  background: var(--color-accent-soft-green);
  color: var(--color-primary-green);
}

/* ==========================================================================
   Animations
   ========================================================================== */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }