:root {
  /* Color System */
  --color-primary: #1e40af;
  --color-primary-light: #3b82f6;
  --color-primary-dark: #1e3a8a;
  --color-secondary: #f8fafc;
  --color-accent: #64748b;
  --color-text-primary: #0f172a;
  --color-text-secondary: #475569;
  --color-text-light: #94a3b8;
  --color-background: #ffffff;
  --color-surface: #f8fafc;
  --color-surface-alt: #f1f5f9;
  --color-footer: #1e293b;
  --color-border: #e2e8f0;
  --color-border-light: #f1f5f9;
  --color-success: #059669;
  --color-warning: #d97706;
  --color-error: #dc2626;

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-secondary: 'Source Serif Pro', Georgia, serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --line-height-tight: 1.25;
  --line-height-snug: 1.375;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;
  --line-height-loose: 2;

  /* Spacing System */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;
}

/* Base Styles */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-background);
  margin: 0;
  padding: 0;
  font-feature-settings: 'kern' 1, 'liga' 1, 'calt' 1;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 700;
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
  margin: 0 0 var(--space-6) 0;
  letter-spacing: -0.025em;
}

h1 {
  font-size: var(--font-size-5xl);
  font-weight: 800;
  line-height: var(--line-height-tight);
  letter-spacing: -0.05em;
}

h2 {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  letter-spacing: -0.04em;
}

h3 {
  font-size: var(--font-size-3xl);
  font-weight: 600;
  letter-spacing: -0.03em;
}

h4 {
  font-size: var(--font-size-2xl);
  font-weight: 600;
}

h5 {
  font-size: var(--font-size-xl);
  font-weight: 600;
}

h6 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

p {
  margin: 0 0 var(--space-6) 0;
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

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

a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

/* Container System */
.container {
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

@media (min-width: 640px) {
  .container {
    max-width: 640px;
    padding: 0 var(--space-6);
  }
}

@media (min-width: 768px) {
  .container {
    max-width: 768px;
  }
}

@media (min-width: 1024px) {
  .container {
    max-width: 1024px;
    padding: 0 var(--space-8);
  }
}

@media (min-width: 1280px) {
  .container {
    max-width: 1280px;
  }
}

@media (min-width: 1536px) {
  .container {
    max-width: 1536px;
  }
}

/* Grid System */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

@media (max-width: 768px) {
  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: 1fr;
  }
}

/* Section Styles */
.section {
  padding: var(--space-16) 0;
}

.section-sm {
  padding: var(--space-12) 0;
}

.section-lg {
  padding: var(--space-24) 0;
}

/* Background Variants */
.bg-primary { background-color: var(--color-primary); }
.bg-secondary { background-color: var(--color-secondary); }
.bg-surface { background-color: var(--color-surface); }
.bg-surface-alt { background-color: var(--color-surface-alt); }
.bg-footer { background-color: var(--color-footer); }

/* Button System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-primary);
  font-weight: 600;
  font-size: var(--font-size-sm);
  line-height: 1;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.btn:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

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

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

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

.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

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

.btn-ghost {
  background-color: transparent;
  color: var(--color-text-secondary);
  border-color: var(--color-border);
}

.btn-ghost:hover {
  background-color: var(--color-surface);
  color: var(--color-text-primary);
  border-color: var(--color-border);
  text-decoration: none;
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-base);
}

.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-xs);
}

/* Card System */
.card {
  background-color: var(--color-background);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: all var(--transition-normal);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.card-header {
  padding: var(--space-6) var(--space-6) var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--color-border-light);
}

.card-body {
  padding: var(--space-6);
}

.card-footer {
  padding: var(--space-4) var(--space-6) var(--space-6) var(--space-6);
  border-top: 1px solid var(--color-border-light);
  background-color: var(--color-surface);
}

.card-hover {
  cursor: pointer;
}

/* Form Elements */
.form-group {
  margin-bottom: var(--space-6);
}

.form-label {
  display: block;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
  font-size: var(--font-size-sm);
}

.form-input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-base);
  font-family: var(--font-primary);
  color: var(--color-text-primary);
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgb(59 130 246 / 0.1);
}

.form-input::placeholder {
  color: var(--color-text-light);
}

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

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
  background-position: right 0.5rem center;
  background-repeat: no-repeat;
  background-size: 1.5em 1.5em;
  padding-right: 2.5rem;
}

.form-checkbox,
.form-radio {
  width: 1rem;
  height: 1rem;
  color: var(--color-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.form-radio {
  border-radius: 50%;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-text-secondary); }
.text-light { color: var(--color-text-light); }
.text-white { color: white; }

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

.leading-tight { line-height: var(--line-height-tight); }
.leading-relaxed { line-height: var(--line-height-relaxed); }
.leading-loose { line-height: var(--line-height-loose); }

.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }

.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }
.px-6 { padding-left: var(--space-6); padding-right: var(--space-6); }
.py-4 { padding-top: var(--space-4); padding-bottom: var(--space-4); }
.py-8 { padding-top: var(--space-8); padding-bottom: var(--space-8); }

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

.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

.border { border: 1px solid var(--color-border); }
.border-light { border: 1px solid var(--color-border-light); }

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

.flex { display: flex; }
.inline-flex { display: inline-flex; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-start { justify-content: flex-start; }
.justify-end { justify-content: flex-end; }
.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.flex-wrap { flex-wrap: wrap; }

.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* Hero Section */
.hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  position: relative;
  background: linear-gradient(135deg, var(--color-background) 0%, var(--color-surface) 100%);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 30% 50%, rgba(59, 130, 246, 0.05) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero h1 {
  background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Navigation */
.navbar {
  background-color: var(--color-background);
  border-bottom: 1px solid var(--color-border-light);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(8px);
  background-color: rgba(255, 255, 255, 0.95);
}

.navbar-brand {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.navbar-link {
  color: var(--color-text-secondary);
  font-weight: 500;
  padding: var(--space-2) 0;
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
}

.navbar-link:hover,
.navbar-link.active {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom-color: var(--color-primary);
}

/* Footer */
.footer {
  background-color: var(--color-footer);
  color: white;
  padding: var(--space-16) 0 var(--space-8) 0;
}

.footer h4,
.footer h5 {
  color: white;
  margin-bottom: var(--space-4);
}

.footer p,
.footer a {
  color: #94a3b8;
}

.footer a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid #334155;
  padding-top: var(--space-8);
  margin-top: var(--space-8);
}

/* Feature Cards */
.feature-card {
  text-align: center;
  padding: var(--space-8);
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, var(--color-background) 0%, var(--color-surface) 100%);
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-normal);
}

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

.feature-icon {
  width: 4rem;
  height: 4rem;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-6) auto;
  color: white;
  font-size: var(--font-size-2xl);
}

/* Testimonials */
.testimonial {
  background-color: var(--color-surface);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  border: 1px solid var(--color-border);
  position: relative;
}

.testimonial::before {
  content: '"';
  position: absolute;
  top: -0.5rem;
  left: var(--space-6);
  font-size: 4rem;
  color: var(--color-primary);
  font-family: var(--font-secondary);
  line-height: 1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border-light);
}

.testimonial-avatar {
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 600;
}

/* Pricing Cards */
.pricing-card {
  background-color: var(--color-background);
  border-radius: var(--radius-xl);
  border: 2px solid var(--color-border);
  padding: var(--space-8);
  text-align: center;
  position: relative;
  transition: all var(--transition-normal);
}

.pricing-card.featured {
  border-color: var(--color-primary);
  transform: scale(1.05);
}

.pricing-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-xl);
}

.pricing-badge {
  position: absolute;
  top: -0.75rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: white;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
  font-weight: 600;
}

.pricing-price {
  font-size: var(--font-size-5xl);
  font-weight: 800;
  color: var(--color-primary);
  margin: var(--space-4) 0;
}

.pricing-period {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.animate-fade-in {
  animation: fadeIn 0.6s ease-out;
}

.animate-slide-in {
  animation: slideIn 0.6s ease-out;
}

/* Responsive Utilities */
@media (max-width: 768px) {
  .hero {
    min-height: 60vh;
  }
  
  h1 {
    font-size: var(--font-size-4xl);
  }
  
  .btn-lg {
    padding: var(--space-3) var(--space-6);
    font-size: var(--font-size-sm);
  }
  
  .feature-card,
  .testimonial,
  .pricing-card {
    padding: var(--space-6);
  }
  
  .section {
    padding: var(--space-12) 0;
  }
}

/* Print Styles */
@media print {
  .navbar,
  .footer,
  .btn {
    display: none;
  }
  
  .card {
    border: 1px solid #000;
    box-shadow: none;
  }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  :root {
    --color-border: #000;
    --color-text-light: var(--color-text-secondary);
  }
  
  .btn-primary {
    border: 2px solid var(--color-text-primary);
  }
}

/* Reduced Motion */
@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;
  }
}


/* 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;
    }
}