@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  /* OKLCH Color System - Light Mode */
  --background: oklch(98% 0.01 264);
  --foreground: oklch(15% 0.02 264);
  --card: oklch(100% 0 0);
  --card-foreground: oklch(15% 0.02 264);
  --popover: oklch(100% 0 0);
  --popover-foreground: oklch(15% 0.02 264);
  --primary: oklch(55% 0.22 264);
  --primary-foreground: oklch(98% 0.01 264);
  --secondary: oklch(92% 0.02 264);
  --secondary-foreground: oklch(15% 0.02 264);
  --muted: oklch(92% 0.02 264);
  --muted-foreground: oklch(45% 0.02 264);
  --accent: oklch(92% 0.02 264);
  --accent-foreground: oklch(15% 0.02 264);
  --destructive: oklch(55% 0.22 25);
  --destructive-foreground: oklch(98% 0.01 264);
  --border: oklch(88% 0.02 264);
  --input: oklch(88% 0.02 264);
  --ring: oklch(55% 0.22 264);
  --chart-1: oklch(60% 0.20 240);
  --chart-2: oklch(65% 0.18 280);
  --chart-3: oklch(70% 0.16 300);
  --chart-4: oklch(75% 0.14 320);
  --chart-5: oklch(80% 0.12 340);
  --radius: 0.5rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: oklch(15% 0.02 264);
    --foreground: oklch(98% 0.01 264);
    --card: oklch(18% 0.02 264);
    --card-foreground: oklch(98% 0.01 264);
    --popover: oklch(18% 0.02 264);
    --popover-foreground: oklch(98% 0.01 264);
    --primary: oklch(65% 0.22 264);
    --primary-foreground: oklch(15% 0.02 264);
    --secondary: oklch(25% 0.02 264);
    --secondary-foreground: oklch(98% 0.01 264);
    --muted: oklch(25% 0.02 264);
    --muted-foreground: oklch(65% 0.02 264);
    --accent: oklch(25% 0.02 264);
    --accent-foreground: oklch(98% 0.01 264);
    --destructive: oklch(55% 0.22 25);
    --destructive-foreground: oklch(98% 0.01 264);
    --border: oklch(25% 0.02 264);
    --input: oklch(25% 0.02 264);
    --ring: oklch(65% 0.22 264);
    --chart-1: oklch(60% 0.20 240);
    --chart-2: oklch(65% 0.18 280);
    --chart-3: oklch(70% 0.16 300);
    --chart-4: oklch(75% 0.14 320);
    --chart-5: oklch(80% 0.12 340);
  }
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: oklch(var(--background));
  color: oklch(var(--foreground));
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body.loaded {
  transition: background-color 0.3s ease;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header Styles */
header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: oklch(var(--background) / 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid oklch(var(--border));
  transition: all 0.3s ease;
}

header.scrolled {
  box-shadow: 0 4px 6px -1px oklch(var(--foreground) / 0.1);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: oklch(var(--foreground));
  text-decoration: none;
  transition: opacity 0.2s ease;
}

.logo:hover {
  opacity: 0.8;
}

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  background: linear-gradient(135deg, oklch(var(--primary)), oklch(var(--chart-1)));
  border-radius: 0.5rem;
  color: oklch(var(--primary-foreground));
}

.logo-icon svg {
  width: 1.25rem;
  height: 1.25rem;
}

.desktop-nav {
  display: none;
  gap: 2rem;
}

.desktop-nav a {
  color: oklch(var(--muted-foreground));
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease;
  position: relative;
}

.desktop-nav a:hover {
  color: oklch(var(--primary));
}

.desktop-nav a::after {
  content: '';
  position: absolute;
  bottom: -0.25rem;
  left: 0;
  width: 0;
  height: 2px;
  background-color: oklch(var(--primary));
  transition: width 0.2s ease;
}

.desktop-nav a:hover::after {
  width: 100%;
}

.mobile-menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background: none;
  border: none;
  cursor: pointer;
  color: oklch(var(--foreground));
  transition: opacity 0.2s ease;
}

.mobile-menu-toggle:hover {
  opacity: 0.7;
}

.mobile-menu-toggle svg {
  width: 1.5rem;
  height: 1.5rem;
}

.mobile-menu-toggle .close-icon {
  display: none;
}

.mobile-menu-toggle.active .menu-icon {
  display: none;
}

.mobile-menu-toggle.active .close-icon {
  display: block;
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1rem 0;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.mobile-nav.active {
  max-height: 300px;
  padding: 1rem 0;
}

.mobile-nav a {
  color: oklch(var(--muted-foreground));
  text-decoration: none;
  font-weight: 500;
  padding: 0.5rem 0;
  transition: color 0.2s ease;
}

.mobile-nav a:hover {
  color: oklch(var(--primary));
}

@media (min-width: 768px) {
  .desktop-nav {
    display: flex;
  }
  
  .mobile-menu-toggle {
    display: none;
  }
  
  .mobile-nav {
    display: none;
  }
}

/* Hero Section */
.hero-section {
  position: relative;
  padding: 5rem 0;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}

.gradient-bg-1,
.gradient-bg-2,
.gradient-bg-3 {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.3;
  transition: transform 0.3s ease;
}

.gradient-bg-1 {
  top: 10%;
  left: 10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, oklch(var(--primary) / 0.4), transparent);
}

.gradient-bg-2 {
  top: 50%;
  right: 10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, oklch(var(--chart-1) / 0.4), transparent);
}

.gradient-bg-3 {
  bottom: 10%;
  left: 50%;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, oklch(var(--chart-2) / 0.3), transparent);
}

.hero-grid {
  display: grid;
  gap: 3rem;
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.hero-content.visible {
  opacity: 1;
  transform: translateY(0);
}

.badge {
  display: inline-block;
  padding: 0.5rem 1rem;
  background-color: oklch(var(--primary) / 0.1);
  color: oklch(var(--primary));
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

h1 {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.hero-description {
  font-size: 1.125rem;
  color: oklch(var(--muted-foreground));
  line-height: 1.7;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius);
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
}

.button-primary {
  background-color: oklch(var(--primary));
  color: oklch(var(--primary-foreground));
  box-shadow: 0 4px 6px -1px oklch(var(--primary) / 0.3);
}

.button-primary:hover {
  background-color: oklch(var(--primary) / 0.9);
  box-shadow: 0 10px 15px -3px oklch(var(--primary) / 0.4);
}

.button svg {
  width: 1.25rem;
  height: 1.25rem;
  transition: transform 0.2s ease;
}

.button:hover svg {
  transform: translateX(4px);
}

.product-card {
  display: flex;
  justify-content: center;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease 0.2s, transform 0.6s ease 0.2s;
}

.product-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.card {
  background-color: oklch(var(--card));
  border: 2px solid oklch(var(--border));
  border-radius: calc(var(--radius) * 2);
  overflow: hidden;
  box-shadow: 0 20px 25px -5px oklch(var(--foreground) / 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card img {
  width: 100%;
  height: auto;
  display: block;
}

/* Footer */
footer {
  border-top: 1px solid oklch(var(--border));
  padding: 2rem 0;
  margin-top: 4rem;
}

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

.footer-content p {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  color: oklch(var(--muted-foreground));
  font-size: 0.875rem;
}

.heart-icon {
  width: 1rem;
  height: 1rem;
  color: oklch(var(--destructive));
  animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
}

footer a {
  color: oklch(var(--primary));
  text-decoration: none;
  font-weight: 600;
  transition: opacity 0.2s ease;
}

footer a:hover {
  opacity: 0.8;
}

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

.fade-in-delay {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease 0.2s, transform 0.6s ease 0.2s;
}

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

/* Responsive Design */
@media (min-width: 768px) {
  h1 {
    font-size: 3.5rem;
  }
  
  .hero-description {
    font-size: 1.25rem;
  }
  
  .hero-section {
    padding: 8rem 0;
  }
}

@media (min-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
  }
  
  h1 {
    font-size: 4rem;
  }
}