:root {
  /* Design Tokens */
  --primary-color: #2563eb;
  --secondary-color: #64748b;
  --background-color: #ffffff;
  --footer-bg-color: #f8fafc;
  --button-color: #2563eb;
  
  /* Section backgrounds pattern */
  --section-bg-1: #ffffff;
  --section-bg-2: #f8fafc;
  --section-bg-3: #ffffff;
  --section-bg-4: #f1f5f9;
  
  /* Typography */
  --font-primary: 'Inter', system-ui, -apple-system, sans-serif;
  --font-secondary: 'Source Sans Pro', system-ui, -apple-system, sans-serif;
  --font-mono: 'Fira Code', 'SF Mono', monospace;
  
  /* Spacing scale */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;
  
  /* Border radius */
  --radius-sm: 0.125rem;
  --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 cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Line heights */
  --line-height-tight: 1.25;
  --line-height-snug: 1.375;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;
  --line-height-loose: 2;
}

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

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

body {
  font-family: var(--font-secondary);
  font-size: 1rem;
  line-height: var(--line-height-relaxed);
  color: #1e293b;
  background-color: var(--background-color);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 600;
  line-height: var(--line-height-tight);
  letter-spacing: -0.025em;
  color: #0f172a;
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: clamp(2.25rem, 4vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.05em;
}

h2 {
  font-size: clamp(1.875rem, 3vw, 2.75rem);
}

h3 {
  font-size: clamp(1.5rem, 2.5vw, 2.25rem);
}

h4 {
  font-size: clamp(1.25rem, 2vw, 1.75rem);
}

h5 {
  font-size: 1.25rem;
  font-weight: 600;
}

h6 {
  font-size: 1.125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

p {
  margin-bottom: var(--spacing-lg);
  color: var(--secondary-color);
  line-height: var(--line-height-relaxed);
}

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

a:hover {
  color: #1d4ed8;
  text-decoration: underline;
}

/* Focus states for accessibility */
*:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

*:focus:not(:focus-visible) {
  outline: none;
}

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

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

.section:nth-child(even) {
  background-color: var(--section-bg-2);
}

.section:nth-child(odd) {
  background-color: var(--section-bg-1);
}

/* Alternating section backgrounds */
.section:nth-of-type(3n) {
  background-color: var(--section-bg-3);
}

.section:nth-of-type(4n) {
  background-color: var(--section-bg-4);
}

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

.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));
}

/* Flexbox 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-1 { gap: var(--spacing-xs); }
.gap-2 { gap: var(--spacing-sm); }
.gap-4 { gap: var(--spacing-md); }
.gap-6 { gap: var(--spacing-lg); }
.gap-8 { gap: var(--spacing-xl); }

/* Spacing Utilities */
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-4 { margin-bottom: var(--spacing-md); }
.mb-6 { margin-bottom: var(--spacing-lg); }
.mb-8 { margin-bottom: var(--spacing-xl); }
.mb-12 { margin-bottom: var(--spacing-2xl); }

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-4 { margin-top: var(--spacing-md); }
.mt-6 { margin-top: var(--spacing-lg); }
.mt-8 { margin-top: var(--spacing-xl); }
.mt-12 { margin-top: var(--spacing-2xl); }

.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-4 { padding: var(--spacing-md); }
.p-6 { padding: var(--spacing-lg); }
.p-8 { padding: var(--spacing-xl); }

/* Button Components */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-family: var(--font-primary);
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  user-select: none;
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background-color: var(--button-color);
  color: #ffffff;
  border-color: var(--button-color);
}

.btn-primary:hover:not(:disabled) {
  background-color: #1d4ed8;
  border-color: #1d4ed8;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}

.btn-primary:focus {
  background-color: #1d4ed8;
  border-color: #1d4ed8;
}

.btn-secondary {
  background-color: transparent;
  color: var(--secondary-color);
  border-color: #cbd5e1;
}

.btn-secondary:hover:not(:disabled) {
  background-color: #f8fafc;
  border-color: var(--secondary-color);
  color: #334155;
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
}

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

.btn-outline:hover:not(:disabled) {
  background-color: var(--primary-color);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}

.btn-lg {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 1rem;
}

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: 0.75rem;
}

/* Card Components */
.card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid #e2e8f0;
  padding: var(--spacing-xl);
  transition: all var(--transition-normal);
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: #cbd5e1;
}

.card-header {
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid #f1f5f9;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: #0f172a;
  margin-bottom: var(--spacing-sm);
}

.card-subtitle {
  font-size: 0.875rem;
  color: var(--secondary-color);
  font-weight: 400;
}

.card-body {
  color: var(--secondary-color);
  line-height: var(--line-height-relaxed);
}

.card-footer {
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  border-top: 1px solid #f1f5f9;
}

/* Navigation */
.nav {
  background-color: #ffffff;
  border-bottom: 1px solid #e2e8f0;
  padding: var(--spacing-md) 0;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.nav-brand {
  font-family: var(--font-primary);
  font-size: 1.5rem;
  font-weight: 700;
  color: #0f172a;
  text-decoration: none;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
  list-style: none;
}

.nav-link {
  color: var(--secondary-color);
  font-weight: 500;
  text-decoration: none;
  transition: color var(--transition-fast);
  position: relative;
}

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

.nav-link.active {
  color: var(--primary-color);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -var(--spacing-sm);
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--primary-color);
}

/* Header */
.header {
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  padding: var(--spacing-4xl) 0;
  text-align: center;
}

.header-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  color: #0f172a;
  margin-bottom: var(--spacing-lg);
  line-height: var(--line-height-tight);
}

.header-subtitle {
  font-size: clamp(1.125rem, 2.5vw, 1.5rem);
  color: var(--secondary-color);
  max-width: 600px;
  margin: 0 auto var(--spacing-xl);
  line-height: var(--line-height-relaxed);
}

/* Footer */
.footer {
  background-color: var(--footer-bg-color);
  border-top: 1px solid #e2e8f0;
  padding: var(--spacing-4xl) 0 var(--spacing-xl);
  color: var(--secondary-color);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-section h4 {
  font-size: 1.125rem;
  font-weight: 600;
  color: #0f172a;
  margin-bottom: var(--spacing-lg);
}

.footer-section p,
.footer-section a {
  color: var(--secondary-color);
  margin-bottom: var(--spacing-sm);
}

.footer-section a:hover {
  color: var(--primary-color);
}

.footer-bottom {
  border-top: 1px solid #e2e8f0;
  padding-top: var(--spacing-lg);
  text-align: center;
  font-size: 0.875rem;
  color: var(--secondary-color);
}

/* Forms */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: #374151;
  margin-bottom: var(--spacing-sm);
}

.form-input {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 1rem;
  line-height: 1.5;
  color: #111827;
  background-color: #ffffff;
  border: 1px solid #d1d5db;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.form-input:focus {
  border-color: var(--primary-color);
  outline: none;
  box-shadow: 0 0 0 3px rgb(37 99 235 / 0.1);
}

.form-input::placeholder {
  color: #9ca3af;
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
  font-family: var(--font-secondary);
}

.form-select {
  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 8 4 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;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
}

/* Alerts */
.alert {
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  margin-bottom: var(--spacing-lg);
}

.alert-info {
  background-color: #dbeafe;
  border-color: #bfdbfe;
  color: #1e40af;
}

.alert-success {
  background-color: #d1fae5;
  border-color: #a7f3d0;
  color: #065f46;
}

.alert-warning {
  background-color: #fef3c7;
  border-color: #fde68a;
  color: #92400e;
}

.alert-error {
  background-color: #fee2e2;
  border-color: #fecaca;
  color: #991b1b;
}

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

.font-light { font-weight: 300; }
.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(--secondary-color); }
.text-dark { color: #0f172a; }
.text-white { color: #ffffff; }

.bg-primary { background-color: var(--primary-color); }
.bg-secondary { background-color: var(--secondary-color); }
.bg-light { background-color: #f8fafc; }
.bg-dark { background-color: #0f172a; }

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

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

.border { border: 1px solid #e2e8f0; }
.border-2 { border: 2px solid #e2e8f0; }
.border-primary { border-color: var(--primary-color); }

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

.max-w-sm { max-width: 24rem; }
.max-w-md { max-width: 28rem; }
.max-w-lg { max-width: 32rem; }
.max-w-xl { max-width: 36rem; }
.max-w-2xl { max-width: 42rem; }
.max-w-4xl { max-width: 56rem; }
.max-w-6xl { max-width: 72rem; }

.mx-auto { margin-left: auto; margin-right: auto; }

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-md);
  }
  
  .section {
    padding: var(--spacing-2xl) 0;
  }
  
  .nav-container {
    flex-direction: column;
    gap: var(--spacing-md);
  }
  
  .nav-menu {
    gap: var(--spacing-md);
  }
  
  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: 1fr;
  }
  
  .btn {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 640px) {
  h1, h2, h3, h4, h5, h6 {
    margin-bottom: var(--spacing-sm);
  }
  
  p {
    margin-bottom: var(--spacing-md);
  }
  
  .card {
    padding: var(--spacing-lg);
  }
  
  .btn {
    padding: var(--spacing-md);
  }
}

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

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

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

.slide-in {
  animation: slideIn 0.4s ease-out;
}

/* Selection */
::selection {
  background-color: var(--primary-color);
  color: #ffffff;
}

::-moz-selection {
  background-color: var(--primary-color);
  color: #ffffff;
}

/* Scrollbar (Webkit browsers) */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}

/* Print styles */
@media print {
  .nav,
  .footer,
  .btn {
    display: none !important;
  }
  
  body {
    font-size: 12pt;
    line-height: 1.5;
    color: #000000;
    background: #ffffff;
  }
  
  .card {
    border: 1px solid #000000;
    box-shadow: none;
  }
  
  a {
    color: #000000;
    text-decoration: underline;
  }
}


/* 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;
    }
}