/* AI Technology Theme - Clean Corporate */
:root {
  /* Color System */
  --color-primary: #1e40af;
  --color-secondary: #3b82f6;
  --color-background: #ffffff;
  --color-footer-bg: #1e293b;
  --color-button: #1e40af;
  --color-section-1: #f8fafc;
  --color-section-2: #ffffff;
  --color-section-3: #f1f5f9;
  --color-text-primary: #0f172a;
  --color-text-secondary: #475569;
  --color-text-muted: #64748b;
  --color-border-light: #e2e8f0;
  --color-border-medium: #cbd5e1;
  --color-accent-success: #059669;
  --color-accent-error: #dc2626;

  /* Typography */
  --font-family-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-family-mono: 'JetBrains Mono', 'Monaco', 'Cascadia Code', monospace;
  
  /* Font Sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;

  /* Line Heights */
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 2;

  /* Spacing */
  --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;

  /* Border Radius */
  --radius-none: 0;
  --radius-sm: 0.125rem;
  --radius: 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: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --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);

  /* 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;
}

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

/* Typography Hierarchy */
h1, .h1 {
  font-size: var(--text-5xl);
  font-weight: 700;
  line-height: var(--leading-tight);
  letter-spacing: -0.025em;
  color: var(--color-text-primary);
  margin: 0 0 var(--space-6) 0;
}

h2, .h2 {
  font-size: var(--text-4xl);
  font-weight: 600;
  line-height: var(--leading-tight);
  letter-spacing: -0.025em;
  color: var(--color-text-primary);
  margin: 0 0 var(--space-5) 0;
}

h3, .h3 {
  font-size: var(--text-3xl);
  font-weight: 600;
  line-height: var(--leading-snug);
  color: var(--color-text-primary);
  margin: 0 0 var(--space-4) 0;
}

h4, .h4 {
  font-size: var(--text-2xl);
  font-weight: 600;
  line-height: var(--leading-snug);
  color: var(--color-text-primary);
  margin: 0 0 var(--space-3) 0;
}

h5, .h5 {
  font-size: var(--text-xl);
  font-weight: 600;
  line-height: var(--leading-snug);
  color: var(--color-text-primary);
  margin: 0 0 var(--space-3) 0;
}

h6, .h6 {
  font-size: var(--text-lg);
  font-weight: 600;
  line-height: var(--leading-snug);
  color: var(--color-text-primary);
  margin: 0 0 var(--space-2) 0;
}

p {
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--color-text-secondary);
  margin: 0 0 var(--space-4) 0;
}

.text-sm {
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
}

.text-lg {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
}

.text-xl {
  font-size: var(--text-xl);
  line-height: var(--leading-relaxed);
}

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

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

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

/* AI-themed Typography */
.font-mono {
  font-family: var(--font-family-mono);
}

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

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

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

/* Button System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-sm);
  font-weight: 500;
  line-height: 1;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-fast);
  white-space: nowrap;
  user-select: none;
}

.btn:focus {
  outline: 2px solid transparent;
  outline-offset: 2px;
  box-shadow: 0 0 0 3px rgb(59 130 246 / 0.1);
}

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

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

.btn-primary:active {
  background-color: #1e3a8a;
  border-color: #1e3a8a;
}

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

.btn-secondary:hover {
  background-color: #2563eb;
  border-color: #2563eb;
}

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

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

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

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

.btn-block {
  width: 100%;
}

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

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

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

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

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

/* AI-themed Cards */
.card-ai {
  background: linear-gradient(135deg, white 0%, var(--color-section-1) 100%);
  border: 1px solid var(--color-border-medium);
  position: relative;
}

.card-ai::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
}

/* Form System */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.form-input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text-primary);
  background-color: white;
  border: 1px solid var(--color-border-medium);
  border-radius: var(--radius);
  transition: border-color var(--transition-fast), box-shadow 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-muted);
}

.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;
}

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

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

.form-checkbox:focus,
.form-radio:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgb(59 130 246 / 0.1);
}

/* Navigation */
.nav {
  background-color: var(--color-footer-bg);
  padding: var(--space-4) 0;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

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

.nav-link {
  color: #cbd5e1;
  text-decoration: none;
  font-weight: 500;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius);
  transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: white;
  background-color: rgba(255, 255, 255, 0.1);
}

/* Header */
.header {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: white;
  padding: var(--space-20) 0;
  text-align: center;
}

.header-title {
  color: white;
  margin-bottom: var(--space-6);
}

.header-subtitle {
  font-size: var(--text-xl);
  line-height: var(--leading-relaxed);
  color: rgba(255, 255, 255, 0.9);
  max-width: 600px;
  margin: 0 auto;
}

/* Footer */
.footer {
  background-color: var(--color-footer-bg);
  color: #cbd5e1;
  padding: var(--space-16) 0 var(--space-8) 0;
}

.footer-content {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

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

.footer-section p {
  color: #94a3b8;
  margin-bottom: var(--space-2);
}

.footer-bottom {
  border-top: 1px solid #374151;
  padding-top: var(--space-8);
  text-align: center;
}

/* Utility Classes */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.section {
  padding: var(--space-16) 0;
}

.section-sm {
  padding: var(--space-8) 0;
}

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

.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.flex {
  display: flex;
}

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

.items-center {
  align-items: center;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.grid {
  display: grid;
}

.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));
}

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

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

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

.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);
}

/* AI-themed Components */
.ai-badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  background-color: var(--color-primary);
  color: white;
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-lg);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.ai-code-block {
  background-color: #1e293b;
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  overflow-x: auto;
  font-family: var(--font-family-mono);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  color: #e2e8f0;
}

.ai-code-block code {
  background: none;
  padding: 0;
  font-size: inherit;
  color: inherit;
}

/* Responsive Design */
@media (max-width: 768px) {
  :root {
    --text-5xl: 2.5rem;
    --text-4xl: 2rem;
    --text-3xl: 1.75rem;
  }
  
  .container {
    padding: 0 var(--space-4);
  }
  
  .section {
    padding: var(--space-12) 0;
  }
  
  .grid-cols-2,
  .grid-cols-3 {
    grid-template-columns: 1fr;
  }
  
  .nav-container {
    padding: 0 var(--space-4);
    flex-direction: column;
    gap: var(--space-4);
  }
  
  .header {
    padding: var(--space-16) 0;
  }
}

@media (max-width: 480px) {
  :root {
    --text-5xl: 2rem;
    --text-4xl: 1.75rem;
  }
  
  .btn {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-xs);
  }
  
  .btn-lg {
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-sm);
  }
  
  .card-header,
  .card-body,
  .card-footer {
    padding: var(--space-4);
  }
}

/* Focus Management for Accessibility */
.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;
}

/* Skip Link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: var(--color-primary);
  color: white;
  padding: 8px;
  text-decoration: none;
  border-radius: var(--radius);
  z-index: 1000;
}

.skip-link:focus {
  top: 6px;
}


/* 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;
    }
}