@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&display=swap');

:root {
  /* Material 3 Light Theme Colors from KidsLifeKMP */
  --md-sys-color-primary: #415F91;
  --md-sys-color-on-primary: #FFFFFF;
  --md-sys-color-primary-container: #D6E3FF;
  --md-sys-color-on-primary-container: #284777;
  
  --md-sys-color-secondary: #565F71;
  --md-sys-color-on-secondary: #FFFFFF;
  --md-sys-color-secondary-container: #DAE2F9;
  --md-sys-color-on-secondary-container: #3E4759;
  
  --md-sys-color-tertiary: #904A41;
  --md-sys-color-on-tertiary: #FFFFFF;
  --md-sys-color-tertiary-container: #FFDAD5;
  --md-sys-color-on-tertiary-container: #73342B;
  
  --md-sys-color-background: #F9F9FF;
  --md-sys-color-on-background: #191C20;
  
  --md-sys-color-surface: #F9F9FF;
  --md-sys-color-on-surface: #191C20;
  --md-sys-color-surface-variant: #E0E2EC;
  --md-sys-color-on-surface-variant: #44474E;
  
  --md-sys-color-outline: #74777F;
  --md-sys-color-outline-variant: #C4C6D0;
  
  --md-sys-color-surface-container: #EDEDF4;
  --md-sys-color-surface-container-high: #E7E8EE;

  /* Elevations and shadows */
  --elevation-1: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
  --elevation-2: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
  --elevation-3: 0 10px 20px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.23);
  
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  
  --transition-speed: 0.3s;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Outfit', sans-serif;
  background-color: var(--md-sys-color-background);
  color: var(--md-sys-color-on-background);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: var(--md-sys-color-on-background);
}

h1 {
  font-size: 3rem;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 2.25rem;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.5rem;
}

p {
  margin-bottom: 1.5rem;
  font-size: 1.125rem;
  color: var(--md-sys-color-on-surface-variant);
}

a {
  text-decoration: none;
  color: var(--md-sys-color-primary);
  transition: color var(--transition-speed) ease;
}

a:hover {
  color: var(--md-sys-color-on-primary-container);
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: 5rem 0;
}

.text-center {
  text-align: center;
}

/* Navigation Bar */
.navbar {
  position: sticky;
  top: 0;
  background-color: transparent;
  z-index: 1000;
  padding: 1.5rem 0;
  transition: padding var(--transition-speed) ease, background-color var(--transition-speed) ease, backdrop-filter var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.navbar.navbar-scrolled {
  background-color: rgba(249, 249, 255, 0.9);
  backdrop-filter: blur(10px);
  padding: 1rem 0;
  box-shadow: 0 1px 0 var(--md-sys-color-surface-variant);
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--md-sys-color-primary);
}

.brand img {
  height: 40px;
  width: 40px;
  object-fit: contain;
  border-radius: 8px;
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-links a:not(.btn) {
  font-weight: 500;
  color: var(--md-sys-color-on-surface);
}

.nav-links a:not(.btn):hover {
  color: var(--md-sys-color-primary);
}

.navbar .nav-links .btn.btn-primary {
  background-color: #ffffff !important;
  color: var(--md-sys-color-primary) !important;
}

.navbar .nav-links .btn.btn-primary:hover {
  background-color: var(--md-sys-color-surface-container-high) !important;
  color: var(--md-sys-color-primary) !important;
  box-shadow: var(--elevation-2) !important;
}

/* Accessibility Focus States */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--md-sys-color-primary);
  outline-offset: 4px;
  border-radius: 4px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-speed) ease;
  border: none;
  gap: 0.5rem;
}

.btn-primary {
  background-color: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
  box-shadow: var(--elevation-1);
}

.btn-primary:hover {
  background-color: #354e7a;
  color: var(--md-sys-color-on-primary);
  box-shadow: var(--elevation-2);
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
}

.btn-secondary:hover {
  background-color: #c7d1e8;
  color: var(--md-sys-color-on-secondary-container);
  transform: translateY(-2px);
}

.btn-outline {
  background-color: transparent;
  color: var(--md-sys-color-primary);
  border: 1px solid var(--md-sys-color-outline);
}

.btn-outline:hover {
  background-color: var(--md-sys-color-surface-container);
  border-color: var(--md-sys-color-primary);
}

/* Animation Classes */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* Delay modifiers */
.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }

/* Hero Section */
.hero {
  padding: 6rem 0;
  background: linear-gradient(135deg, var(--md-sys-color-surface) 0%, var(--md-sys-color-surface-container) 100%);
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--md-sys-color-primary-container) 0%, rgba(214,227,255,0) 70%);
  border-radius: 50%;
  z-index: 0;
  opacity: 0.5;
}

.hero .container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-content h1 {
  font-size: 3.5rem;
  color: var(--md-sys-color-primary);
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.hero-content .subtitle {
  font-size: 1.25rem;
  color: var(--md-sys-color-on-surface-variant);
  margin-bottom: 2rem;
  font-weight: 400;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

.badges {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
}

.store-badge {
  height: 48px;
  transition: transform var(--transition-speed) ease;
}

.store-badge:hover {
  transform: translateY(-2px) scale(1.02);
}

.hero-image-wrapper {
  position: relative;
}

.hero-image {
  width: 100%;
  max-width: 450px;
  border-radius: var(--radius-lg);
  box-shadow: var(--elevation-3);
  transform: rotate(-3deg);
  transition: transform 0.5s ease;
  background: var(--md-sys-color-surface);
  padding: 0.5rem;
}

.hero-image:hover {
  transform: rotate(0);
}

/* Features Section - Cards */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.feature-card {
  background-color: var(--md-sys-color-surface);
  border-radius: var(--radius-md);
  padding: 2.5rem;
  box-shadow: var(--elevation-1);
  transition: all var(--transition-speed) ease;
  border: 1px solid var(--md-sys-color-surface-variant);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background-color: var(--md-sys-color-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-speed) ease;
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--elevation-3);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-icon {
  width: 64px;
  height: 64px;
  background-color: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin-bottom: 1.5rem;
}

.feature-card h3 {
  color: var(--md-sys-color-on-surface);
  margin-bottom: 1rem;
}

/* Value Prop / Callout */
.callout {
  background-color: var(--md-sys-color-tertiary-container);
  border-radius: var(--radius-lg);
  padding: 3rem;
  text-align: center;
  margin: 4rem 0;
  position: relative;
  overflow: hidden;
}

.callout h2 {
  color: var(--md-sys-color-on-tertiary-container);
}

.callout p {
  color: var(--md-sys-color-on-tertiary-container);
  font-size: 1.25rem;
  max-width: 700px;
  margin: 0 auto 2rem;
}

/* Comparison Section */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 3rem;
  background: var(--md-sys-color-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--elevation-1);
}

.comparison-table th, .comparison-table td {
  padding: 1.5rem;
  text-align: left;
  border-bottom: 1px solid var(--md-sys-color-surface-variant);
}

.comparison-table th {
  background-color: var(--md-sys-color-surface-container);
  font-weight: 600;
  color: var(--md-sys-color-on-surface);
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

.highlight-col {
  background-color: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  font-weight: 600;
}

/* Footer */
footer {
  background-color: var(--md-sys-color-surface-container-high);
  padding: 4rem 0 2rem;
  color: var(--md-sys-color-on-surface);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-col h4 {
  margin-bottom: 1.5rem;
  font-size: 1.25rem;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 0.75rem;
}

.footer-col a {
  color: var(--md-sys-color-on-surface-variant);
}

.footer-col a:hover {
  color: var(--md-sys-color-primary);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--md-sys-color-outline-variant);
  color: var(--md-sys-color-on-surface-variant);
  font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 900px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-content h1 {
    font-size: 2.5rem;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .badges {
    justify-content: center;
  }
  
  .hero-image {
    max-width: 80%;
    margin: 0 auto;
    display: block;
    transform: rotate(0);
  }
}

@media (max-width: 600px) {
  .nav-links {
    display: none; /* Add a hamburger menu for real prod if needed */
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .section {
    padding: 3rem 0;
  }
}