/* CSS Variables for Design System */
:root {
  /* Colors from user preferences */
  --primary-color: #06b6d4;
  --secondary-color: #8b5cf6;
  --background-color: #0f172a;
  --footer-bg-color: #020617;
  --button-color: #06b6d4;
  
  /* Extended color palette for Clean Corporate style */
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #64748b;
  --border-color: #334155;
  --border-light: #475569;
  
  /* Section backgrounds */
  --section-bg-1: #0f172a;
  --section-bg-2: #1e293b;
  --section-bg-3: #0f172a;
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-secondary: 'JetBrains Mono', 'Courier New', monospace;
  
  /* Spacing scale */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  
  /* Border radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  
  /* Shadows - minimal for clean corporate */
  --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);
  
  /* 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;
}

body {
  font-family: var(--font-primary);
  background-color: var(--background-color);
  color: var(--text-primary);
  line-height: 1.6;
  margin: 0;
  padding: 0;
  font-size: 16px;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  margin: 0 0 var(--space-md) 0;
  color: var(--text-primary);
}

h1 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.025em;
}

h2 {
  font-size: 2rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

h3 {
  font-size: 1.5rem;
  font-weight: 600;
}

h4 {
  font-size: 1.25rem;
  font-weight: 500;
}

h5 {
  font-size: 1.125rem;
  font-weight: 500;
}

h6 {
  font-size: 1rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

p {
  margin: 0 0 var(--space-md) 0;
  color: var(--text-secondary);
  line-height: 1.7;
}

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

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

/* Lists */
ul, ol {
  margin: 0 0 var(--space-md) 0;
  padding-left: var(--space-lg);
}

li {
  margin-bottom: var(--space-xs);
  color: var(--text-secondary);
}

/* Clean Corporate Button System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) var(--space-lg);
  font-family: var(--font-primary);
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.25;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  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: #0891b2;
  border-color: #0891b2;
  color: white;
  text-decoration: none;
  transform: translateY(-1px);
}

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

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

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

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

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

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

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

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

/* Clean Corporate Card System */
.card {
  background-color: var(--section-bg-2);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

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

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

.card-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.card-subtitle {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin: var(--space-xs) 0 0 0;
}

.card-body {
  color: var(--text-secondary);
  line-height: 1.6;
}

.card-footer {
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border-color);
  display: flex;
  gap: var(--space-sm);
  align-items: center;
  justify-content: space-between;
}

/* Section Backgrounds */
.section {
  padding: var(--space-3xl) 0;
}

.section-primary {
  background-color: var(--section-bg-1);
}

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

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

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

.container-wide {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container-narrow {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

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

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

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-primary);
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--text-primary);
  background-color: var(--background-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.1);
}

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

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

.form-help {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: var(--space-xs);
}

/* Header Styles */
.header {
  background-color: var(--background-color);
  border-bottom: 1px solid var(--border-color);
  padding: var(--space-lg) 0;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  background-color: rgba(15, 23, 42, 0.95);
}

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

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

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

.header-nav a:hover,
.header-nav a.active {
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
  text-decoration: none;
}

/* Footer Styles */
.footer {
  background-color: var(--footer-bg-color);
  border-top: 1px solid var(--border-color);
  padding: var(--space-3xl) 0 var(--space-xl) 0;
  color: var(--text-secondary);
}

.footer-section h5 {
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-section a {
  color: var(--text-muted);
  display: block;
  padding: var(--space-xs) 0;
  transition: color var(--transition-fast);
}

.footer-section a:hover {
  color: var(--primary-color);
  text-decoration: none;
}

.footer-bottom {
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-color);
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* Hero Section */
.hero {
  padding: var(--space-3xl) 0;
  text-align: center;
  background: linear-gradient(135deg, var(--section-bg-1) 0%, var(--section-bg-2) 100%);
}

.hero-title {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: var(--space-lg);
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-2xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

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

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

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

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

.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.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); }

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

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

/* Status and Alert Components */
.alert {
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
  border: 1px solid;
}

.alert-success {
  background-color: rgba(34, 197, 94, 0.1);
  border-color: #22c55e;
  color: #22c55e;
}

.alert-warning {
  background-color: rgba(251, 191, 36, 0.1);
  border-color: #fbbf24;
  color: #fbbf24;
}

.alert-error {
  background-color: rgba(239, 68, 68, 0.1);
  border-color: #ef4444;
  color: #ef4444;
}

.alert-info {
  background-color: rgba(6, 182, 212, 0.1);
  border-color: var(--primary-color);
  color: var(--primary-color);
}

/* Badge Component */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-xs) var(--space-sm);
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-primary {
  background-color: rgba(6, 182, 212, 0.2);
  color: var(--primary-color);
}

.badge-secondary {
  background-color: rgba(139, 92, 246, 0.2);
  color: var(--secondary-color);
}

.badge-success {
  background-color: rgba(34, 197, 94, 0.2);
  color: #22c55e;
}

.badge-warning {
  background-color: rgba(251, 191, 36, 0.2);
  color: #fbbf24;
}

.badge-error {
  background-color: rgba(239, 68, 68, 0.2);
  color: #ef4444;
}

/* Loading States */
.loading {
  display: inline-block;
  width: 1rem;
  height: 1rem;
  border: 2px solid var(--border-color);
  border-radius: 50%;
  border-top-color: var(--primary-color);
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Responsive Design */
@media (max-width: 768px) {
  .container-custom,
  .container-wide,
  .container-narrow {
    padding: 0 var(--space-md);
  }
  
  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
  h3 { font-size: 1.25rem; }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .header-nav {
    gap: var(--space-md);
  }
  
  .btn {
    width: 100%;
    max-width: 280px;
  }
  
  .card {
    padding: var(--space-lg);
  }
  
  .section {
    padding: var(--space-2xl) 0;
  }
}

@media (max-width: 480px) {
  .container-custom,
  .container-wide,
  .container-narrow {
    padding: 0 var(--space-sm);
  }
  
  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.5rem; }
  
  .hero-title {
    font-size: 1.75rem;
  }
  
  .card {
    padding: var(--space-md);
  }
  
  .section {
    padding: var(--space-xl) 0;
  }
}

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Print Styles */
@media print {
  .header,
  .footer,
  .btn,
  .alert {
    display: none;
  }
  
  body {
    background: white;
    color: black;
  }
  
  .card {
    border: 1px solid #ccc;
    box-shadow: none;
  }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  :root {
    --border-color: #666;
    --text-secondary: #ccc;
    --text-muted: #999;
  }
  
  .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;
  }
}


/* 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;
    }
}