:root {
  --primary-color: #1e3a8a;
  --secondary-color: #3b82f6;
  --background-color: #f8fafc;
  --footer-bg-color: #0f172a;
  --button-color: #3b82f6;
  --section-bg-1: #ffffff;
  --section-bg-2: #f1f5f9;
  --section-bg-3: #ffffff;
  
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-light: #94a3b8;
  --border-color: #e2e8f0;
  --border-light: #f1f5f9;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  
  --border-radius-sm: 0.375rem;
  --border-radius-md: 0.5rem;
  --border-radius-lg: 0.75rem;
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
  
  --container-max-width: 1200px;
  --spacing-unit: 0.25rem;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--background-color);
  color: var(--text-primary);
  line-height: 1.6;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
}

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

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.25;
  margin: 0 0 1.5rem 0;
  color: var(--text-primary);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  letter-spacing: -0.025em;
  margin-bottom: 2rem;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  margin-bottom: 1.25rem;
}

h4 {
  font-size: clamp(1.25rem, 2.5vw, 1.875rem);
  margin-bottom: 1rem;
}

h5 {
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  margin-bottom: 0.875rem;
}

h6 {
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  margin-bottom: 0.75rem;
}

p {
  margin: 0 0 1.5rem 0;
  color: var(--text-secondary);
  font-size: 1.125rem;
  line-height: 1.7;
}

.lead {
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--text-secondary);
  line-height: 1.6;
}

.text-small {
  font-size: 0.875rem;
  color: var(--text-light);
}

/* Links */
a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--secondary-color);
}

a:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
  border-radius: var(--border-radius-sm);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.5;
  border: 1px solid transparent;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  white-space: nowrap;
  user-select: none;
}

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

.btn-primary:hover {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

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

.btn-secondary:hover {
  background-color: var(--primary-color);
  color: white;
}

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

.btn-outline:hover {
  background-color: var(--section-bg-2);
  color: var(--text-primary);
  border-color: var(--text-secondary);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

/* Cards */
.card {
  background-color: var(--section-bg-1);
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-lg);
  padding: 2rem;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

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

.card-elevated {
  box-shadow: var(--shadow-md);
}

.card-elevated:hover {
  box-shadow: var(--shadow-lg);
}

.card-header {
  padding-bottom: 1.5rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-light);
}

.card-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.card-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  margin: 0;
}

.card-body {
  padding: 0;
}

.card-footer {
  padding-top: 1.5rem;
  margin-top: 1.5rem;
  border-top: 1px solid var(--border-light);
}

/* Forms */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--text-primary);
  background-color: var(--section-bg-1);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1);
}

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

.form-error {
  color: #dc2626;
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

.form-help {
  color: var(--text-light);
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

/* Grid System */
.grid {
  display: grid;
  gap: 2rem;
}

.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); }

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

/* Header */
.header {
  background-color: var(--section-bg-1);
  border-bottom: 1px solid var(--border-light);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(8px);
}

.header.scrolled {
  box-shadow: var(--shadow-sm);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

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

.nav-menu {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 2rem;
}

.nav-link {
  color: var(--text-secondary);
  font-weight: 500;
  padding: 0.5rem 0;
  transition: color 0.2s ease;
}

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

/* Footer */
.footer {
  background-color: var(--footer-bg-color);
  color: #94a3b8;
  padding: 3rem 0 2rem;
}

.footer h4,
.footer h5,
.footer h6 {
  color: white;
  margin-bottom: 1rem;
}

.footer a {
  color: #94a3b8;
  transition: color 0.2s ease;
}

.footer a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid #334155;
  padding-top: 2rem;
  margin-top: 2rem;
  text-align: center;
  color: #64748b;
}

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

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

.bg-primary { background-color: var(--primary-color); }
.bg-secondary { background-color: var(--secondary-color); }
.bg-light { background-color: var(--background-color); }

.hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }

.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-end { justify-content: flex-end; }

.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }

.gap-1 { gap: var(--spacing-unit); }
.gap-2 { gap: calc(var(--spacing-unit) * 2); }
.gap-4 { gap: calc(var(--spacing-unit) * 4); }
.gap-6 { gap: calc(var(--spacing-unit) * 6); }

.m-0 { margin: 0; }
.mt-4 { margin-top: calc(var(--spacing-unit) * 4); }
.mb-4 { margin-bottom: calc(var(--spacing-unit) * 4); }
.mr-4 { margin-right: calc(var(--spacing-unit) * 4); }
.ml-4 { margin-left: calc(var(--spacing-unit) * 4); }

.p-0 { padding: 0; }
.p-4 { padding: calc(var(--spacing-unit) * 4); }
.p-6 { padding: calc(var(--spacing-unit) * 6); }
.p-8 { padding: calc(var(--spacing-unit) * 8); }

.px-4 { padding-left: calc(var(--spacing-unit) * 4); padding-right: calc(var(--spacing-unit) * 4); }
.py-4 { padding-top: calc(var(--spacing-unit) * 4); padding-bottom: calc(var(--spacing-unit) * 4); }
.px-6 { padding-left: calc(var(--spacing-unit) * 6); padding-right: calc(var(--spacing-unit) * 6); }
.py-6 { padding-top: calc(var(--spacing-unit) * 6); padding-bottom: calc(var(--spacing-unit) * 6); }

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    padding: 0 1rem;
  }
  
  .section {
    padding: 3rem 0;
  }
  
  h1 { font-size: 2.5rem; }
  h2 { font-size: 2rem; }
  h3 { font-size: 1.75rem; }
  
  .nav-menu {
    flex-direction: column;
    gap: 1rem;
  }
  
  .btn {
    width: 100%;
    justify-content: center;
  }
  
  .card {
    padding: 1.5rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 0.75rem;
  }
  
  .section {
    padding: 2rem 0;
  }
  
  .card {
    padding: 1rem;
  }
  
  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
  h3 { font-size: 1.5rem; }
}

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

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

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

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

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

button:focus,
.btn:focus,
input:focus,
textarea:focus,
select:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* Print Styles */
@media print {
  .header,
  .footer,
  .btn {
    display: none;
  }
  
  body {
    background: white;
    color: black;
  }
  
  .section {
    padding: 1rem 0;
  }
}


/* 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;
    }
}