/* CSS Variables - Design System */
:root {
  /* Color Palette */
  --primary-color: #5D6D7E;
  --secondary-color: #FDF2E9;
  --background-color: #FAFAFA;
  --footer-bg-color: #2C3E50;
  --button-color: #5D6D7E;
  --section-bg-1: #FAFAFA;
  --section-bg-2: #FFFFFF;
  --section-bg-3: #F4F6F7;
  
  /* Extended Color Palette for Zen Aesthetic */
  --zen-gray-50: #FEFEFE;
  --zen-gray-100: #F9F9F9;
  --zen-gray-200: #F4F4F4;
  --zen-gray-300: #E8E8E8;
  --zen-gray-400: #D1D1D1;
  --zen-gray-500: #9E9E9E;
  --zen-gray-600: #757575;
  --zen-gray-700: #616161;
  --zen-gray-800: #424242;
  --zen-gray-900: #212121;
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  
  /* Spacing Scale - Generous for Zen Feel */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  --space-4xl: 8rem;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  
  /* Shadows - Subtle and Clean */
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.03);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.06), 0 1px 2px 0 rgba(0, 0, 0, 0.04);
  --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, 0.04), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.03), 0 10px 10px -5px rgba(0, 0, 0, 0.01);
  
  /* Transitions */
  --transition-fast: 150ms ease-out;
  --transition-normal: 250ms ease-out;
  --transition-slow: 350ms ease-out;
}

/* Base Reset and Typography */
* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  line-height: 1.6;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  background-color: var(--background-color);
  color: var(--zen-gray-800);
  margin: 0;
  padding: 0;
  font-weight: 400;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography Hierarchy - Zen-Inspired */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--zen-gray-900);
  margin: 0 0 var(--space-md) 0;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
}

h4 {
  font-size: clamp(1.25rem, 2.5vw, 1.875rem);
}

h5 {
  font-size: 1.5rem;
  font-weight: 500;
}

h6 {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--zen-gray-700);
}

p {
  margin: 0 0 var(--space-md) 0;
  line-height: 1.7;
  color: var(--zen-gray-700);
}

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

a:hover {
  color: var(--zen-gray-900);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

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

.section {
  padding: var(--space-4xl) 0;
  position: relative;
}

.section-sm {
  padding: var(--space-2xl) 0;
}

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

/* Section Background Variations */
.section-bg-primary {
  background-color: var(--section-bg-1);
}

.section-bg-secondary {
  background-color: var(--section-bg-2);
}

.section-bg-tertiary {
  background-color: var(--section-bg-3);
}

/* Header Styles */
.header {
  background-color: var(--zen-gray-50);
  border-bottom: 1px solid var(--zen-gray-200);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) 0;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: var(--space-lg);
  padding-right: var(--space-lg);
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--zen-gray-900);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav {
  display: flex;
  gap: var(--space-xl);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  color: var(--zen-gray-700);
  font-weight: 500;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.nav-link:hover {
  color: var(--primary-color);
  background-color: var(--zen-gray-100);
  text-decoration: none;
}

/* Button System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 1rem;
  line-height: 1;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  letter-spacing: -0.01em;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background-color: var(--button-color);
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: var(--zen-gray-800);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
  text-decoration: none;
  color: white;
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-xs);
}

.btn-secondary {
  background-color: var(--secondary-color);
  color: var(--zen-gray-800);
  border: 1px solid var(--zen-gray-300);
}

.btn-secondary:hover {
  background-color: var(--zen-gray-100);
  border-color: var(--zen-gray-400);
  text-decoration: none;
  color: var(--zen-gray-800);
}

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

.btn-outline:hover {
  background-color: var(--primary-color);
  color: white;
  text-decoration: none;
}

.btn-lg {
  padding: var(--space-md) var(--space-xl);
  font-size: 1.125rem;
}

.btn-sm {
  padding: var(--space-xs) var(--space-md);
  font-size: 0.875rem;
}

/* Card System */
.card {
  background-color: var(--section-bg-2);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--zen-gray-200);
  transition: all var(--transition-normal);
  position: relative;
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
  border-color: var(--zen-gray-300);
}

.card-header {
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--zen-gray-200);
}

.card-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--zen-gray-900);
  margin: 0 0 var(--space-sm) 0;
}

.card-subtitle {
  font-size: 1rem;
  color: var(--zen-gray-600);
  margin: 0;
}

.card-body {
  color: var(--zen-gray-700);
  line-height: 1.7;
}

.card-footer {
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid var(--zen-gray-200);
}

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

.form-label {
  display: block;
  font-weight: 500;
  color: var(--zen-gray-800);
  margin-bottom: var(--space-xs);
  font-size: 0.875rem;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--zen-gray-300);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-family: var(--font-primary);
  background-color: var(--zen-gray-50);
  transition: all var(--transition-fast);
  color: var(--zen-gray-800);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(93, 109, 126, 0.1);
  background-color: white;
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

/* Grid System */
.grid {
  display: grid;
  gap: var(--space-xl);
}

.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); }

/* Flex Utilities */
.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(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }

/* Spacing Utilities */
.m-0 { margin: 0; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }

.p-0 { padding: 0; }
.p-sm { padding: var(--space-sm); }
.p-md { padding: var(--space-md); }
.p-lg { padding: var(--space-lg); }

/* Text Utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-sm { font-size: 0.875rem; }
.text-base { font-size: 1rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }

.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.text-primary { color: var(--primary-color); }
.text-secondary { color: var(--zen-gray-600); }
.text-muted { color: var(--zen-gray-500); }

/* Footer */
.footer {
  background-color: var(--footer-bg-color);
  color: var(--zen-gray-300);
  padding: var(--space-3xl) 0 var(--space-xl) 0;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.footer-section {
  margin-bottom: var(--space-xl);
}

.footer-title {
  color: white;
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: var(--space-xs);
}

.footer-links a {
  color: var(--zen-gray-400);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: white;
  text-decoration: none;
}

.footer-bottom {
  border-top: 1px solid var(--zen-gray-600);
  padding-top: var(--space-lg);
  text-align: center;
  color: var(--zen-gray-500);
  font-size: 0.875rem;
}

/* Hero Section */
.hero {
  padding: var(--space-4xl) 0;
  text-align: center;
  background: linear-gradient(135deg, var(--zen-gray-50) 0%, var(--section-bg-1) 100%);
}

.hero-title {
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 700;
  color: var(--zen-gray-900);
  margin-bottom: var(--space-lg);
  line-height: 1.1;
}

.hero-subtitle {
  font-size: clamp(1.125rem, 2.5vw, 1.5rem);
  color: var(--zen-gray-600);
  margin-bottom: var(--space-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* Feature Cards */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-3xl);
}

.feature-card {
  text-align: center;
  padding: var(--space-xl);
  background-color: var(--section-bg-2);
  border-radius: var(--radius-xl);
  border: 1px solid var(--zen-gray-200);
  transition: all var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--zen-gray-300);
}

.feature-icon {
  width: 64px;
  height: 64px;
  background-color: var(--secondary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-lg) auto;
  font-size: 1.5rem;
  color: var(--primary-color);
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--zen-gray-900);
  margin-bottom: var(--space-sm);
}

.feature-description {
  color: var(--zen-gray-600);
  line-height: 1.6;
}

/* Utility Classes */
.hidden { display: none; }
.visible { visibility: visible; }
.invisible { visibility: hidden; }

.opacity-0 { opacity: 0; }
.opacity-50 { opacity: 0.5; }
.opacity-100 { opacity: 1; }

.w-full { width: 100%; }
.h-full { height: 100%; }

.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }

.border { border: 1px solid var(--zen-gray-300); }
.border-t { border-top: 1px solid var(--zen-gray-300); }
.border-b { border-bottom: 1px solid var(--zen-gray-300); }

/* Focus States for Accessibility */
.btn:focus,
.form-input:focus,
.form-textarea:focus,
.form-select:focus,
.nav-link:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* Loading States */
.loading {
  position: relative;
  overflow: hidden;
}

.loading::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.4),
    transparent
  );
  animation: loading 1.5s infinite;
}

@keyframes loading {
  0% { left: -100%; }
  100% { left: 100%; }
}

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    padding: 0 var(--space-md);
  }
  
  .section {
    padding: var(--space-2xl) 0;
  }
  
  .header-content {
    padding: var(--space-sm) var(--space-md);
    flex-direction: column;
    gap: var(--space-md);
  }
  
  .nav {
    gap: var(--space-md);
  }
  
  .hero {
    padding: var(--space-2xl) 0;
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  
  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: 1fr;
  }
  
  .card {
    padding: var(--space-lg);
  }
  
  .footer-content {
    padding: 0 var(--space-md);
  }
}

@media (max-width: 480px) {
  .btn {
    width: 100%;
    justify-content: center;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .section {
    padding: var(--space-xl) 0;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --zen-gray-300: #000000;
    --zen-gray-400: #000000;
    --zen-gray-600: #000000;
  }
  
  .card {
    border-width: 2px;
  }
  
  .btn {
    border-width: 2px;
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Print styles */
@media print {
  .header,
  .footer,
  .btn {
    display: none;
  }
  
  .section {
    padding: 0;
    break-inside: avoid;
  }
  
  .card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #000;
  }
}


/* Cookie Banner Additional Styles for Tailwind */
.cookie-banner-hover-effect:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

@media (prefers-reduced-motion: reduce) {
    .cookie-banner-hover-effect:hover {
        transform: none;
    }
}