/* SmartNet Tools - Main Stylesheet */
/* Dark theme with neon colors inspired by logo */

:root {
  /* Neon colors from logo */
  --neon-blue: #00d4ff;
  --neon-magenta: #ff006e;
  --neon-yellow: #ffbe0b;
  --neon-cyan: #00f5d4;
  --neon-green: #00ff88;
  
  /* Dark theme colors */
  --bg-primary: #0a0a0a;
  --bg-secondary: #1a1a1a;
  --bg-tertiary: #2a2a2a;
  --text-primary: #ffffff;
  --text-secondary: #cccccc;
  --text-muted: #888888;
  
  /* UI colors */
  --border-color: #333333;
  --focus-color: var(--neon-cyan);
  --error-color: #ff4444;
  --success-color: var(--neon-green);
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  
  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
}

/* Reset and base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Skip to content link for accessibility */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--neon-cyan);
  color: var(--bg-primary);
  padding: var(--spacing-sm);
  text-decoration: none;
  z-index: 100;
  font-weight: 600;
}

.skip-link:focus {
  top: 0;
}

/* Header */
.site-header {
  background: var(--bg-secondary);
  border-bottom: 2px solid var(--border-color);
  padding: var(--spacing-sm) 0;
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.site-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  color: var(--text-primary);
}

.site-logo img {
  height: 40px;
  width: auto;
}

.site-logo span {
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--neon-blue), var(--neon-magenta), var(--neon-yellow));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Mobile menu toggle */
.mobile-menu-toggle {
  display: none;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 1rem;
}

/* Navigation */
.main-nav {
  flex: 1;
}

.nav-list {
  list-style: none;
  display: flex;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-list a {
  color: var(--text-secondary);
  text-decoration: none;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  display: block;
  font-size: 0.95rem;
}

.nav-list a:hover,
.nav-list a:focus {
  color: var(--neon-cyan);
  background: var(--bg-tertiary);
  outline: 2px solid var(--focus-color);
  outline-offset: 2px;
}

.nav-list a.active {
  color: var(--neon-cyan);
  background: var(--bg-tertiary);
}

/* Main content */
main {
  flex: 1;
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-md);
  width: 100%;
}

/* Page header */
.page-header {
  margin-bottom: var(--spacing-xl);
  text-align: center;
}

.page-header h1 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-sm);
  background: linear-gradient(135deg, var(--neon-cyan), var(--neon-magenta));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-header p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 800px;
  margin: 0 auto;
}

/* Hero section */
.hero {
  text-align: center;
  padding: var(--spacing-xl) 0;
  margin-bottom: var(--spacing-xl);
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg, var(--neon-blue), var(--neon-magenta), var(--neon-yellow), var(--neon-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.3rem;
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto var(--spacing-lg);
}

.hero-cta {
  display: inline-flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  justify-content: center;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-md);
  text-decoration: none;
  font-weight: 600;
  transition: all var(--transition-normal);
  border: 2px solid transparent;
  cursor: pointer;
  font-size: 1rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--neon-cyan), var(--neon-blue));
  color: var(--bg-primary);
}

.btn-primary:hover,
.btn-primary:focus {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 212, 255, 0.4);
  outline: 2px solid var(--focus-color);
  outline-offset: 2px;
}

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

.btn-secondary:hover,
.btn-secondary:focus {
  background: var(--neon-magenta);
  color: var(--bg-primary);
  outline: 2px solid var(--focus-color);
  outline-offset: 2px;
}

/* Grid layouts */
.grid {
  display: grid;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* Cards */
.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  transition: all var(--transition-normal);
}

.card:hover {
  border-color: var(--neon-cyan);
  box-shadow: 0 8px 30px rgba(0, 212, 255, 0.2);
  transform: translateY(-4px);
}

.card h2,
.card h3 {
  color: var(--neon-cyan);
  margin-bottom: var(--spacing-sm);
}

.card p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
}

.card a {
  color: var(--neon-magenta);
  text-decoration: none;
  font-weight: 600;
  transition: color var(--transition-fast);
}

.card a:hover,
.card a:focus {
  color: var(--neon-yellow);
  text-decoration: underline;
}

/* Tool cards */
.tool-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  transition: all var(--transition-normal);
  text-decoration: none;
  color: var(--text-primary);
  display: block;
}

.tool-card:hover,
.tool-card:focus {
  border-color: var(--neon-cyan);
  box-shadow: 0 8px 30px rgba(0, 212, 255, 0.2);
  transform: translateY(-4px);
  outline: 2px solid var(--focus-color);
  outline-offset: 2px;
}

.tool-card h3 {
  color: var(--neon-cyan);
  margin-bottom: var(--spacing-xs);
  font-size: 1.2rem;
}

.tool-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Certificate cards */
.cert-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.cert-header {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
}

.cert-icon {
  width: 60px;
  height: 60px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  flex-shrink: 0;
}

.cert-info h3 {
  color: var(--neon-cyan);
  margin-bottom: var(--spacing-xs);
}

.cert-org {
  color: var(--neon-magenta);
  font-weight: 600;
  font-size: 0.9rem;
}

.cert-description {
  color: var(--text-secondary);
  line-height: 1.6;
}

.cert-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  font-size: 0.85rem;
}

.cert-badge {
  background: var(--bg-tertiary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
}

.cert-link {
  margin-top: auto;
}

.cert-link a {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--neon-yellow);
  text-decoration: none;
  font-weight: 600;
  transition: color var(--transition-fast);
}

.cert-link a:hover,
.cert-link a:focus {
  color: var(--neon-cyan);
  text-decoration: underline;
}

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

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  color: var(--text-primary);
  font-weight: 600;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: var(--spacing-sm);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 1rem;
  font-family: inherit;
  transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: 2px solid var(--focus-color);
  outline-offset: 2px;
  border-color: var(--neon-cyan);
}

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}

.form-error {
  color: var(--error-color);
  font-size: 0.9rem;
  margin-top: var(--spacing-xs);
  display: none;
}

.form-group.error .form-error {
  display: block;
}

.form-group.error input,
.form-group.error textarea,
.form-group.error select {
  border-color: var(--error-color);
}

/* Tool interface */
.tool-interface {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.tool-output {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: var(--spacing-md);
  margin-top: var(--spacing-md);
  font-family: "Courier New", monospace;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 500px;
  overflow-y: auto;
}

/* Ad placeholders */
.ad-container {
  background: var(--bg-secondary);
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  text-align: center;
  color: var(--text-muted);
  margin: var(--spacing-lg) 0;
}

.ad-header {
  min-height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ad-sidebar {
  min-height: 250px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ad-footer {
  min-height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ad-inline {
  min-height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: var(--spacing-md) 0;
}

/* Footer */
.site-footer {
  background: var(--bg-secondary);
  border-top: 2px solid var(--border-color);
  padding: var(--spacing-xl) 0 var(--spacing-md);
  margin-top: auto;
}

.footer-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-section h3 {
  color: var(--neon-cyan);
  margin-bottom: var(--spacing-sm);
  font-size: 1.1rem;
}

.footer-section ul {
  list-style: none;
}

.footer-section a {
  color: var(--text-secondary);
  text-decoration: none;
  display: block;
  padding: var(--spacing-xs) 0;
  transition: color var(--transition-fast);
}

.footer-section a:hover,
.footer-section a:focus {
  color: var(--neon-cyan);
  padding-left: var(--spacing-xs);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: var(--spacing-md);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Utility classes */
.text-center {
  text-align: center;
}

.mt-lg {
  margin-top: var(--spacing-lg);
}

.mb-lg {
  margin-bottom: var(--spacing-lg);
}

.hidden {
  display: none;
}

/* Responsive design */
@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: block;
  }
  
  .main-nav {
    flex-basis: 100%;
  }
  
  .nav-list {
    flex-direction: column;
    display: none;
  }
  
  .nav-list.active {
    display: flex;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .hero p {
    font-size: 1.1rem;
  }
  
  .page-header h1 {
    font-size: 2rem;
  }
  
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  :root {
    font-size: 14px;
  }
  
  .hero h1 {
    font-size: 1.75rem;
  }
  
  .page-header h1 {
    font-size: 1.75rem;
  }
}

/* Print styles */
@media print {
  .site-header,
  .site-footer,
  .ad-container,
  .mobile-menu-toggle {
    display: none;
  }
  
  body {
    background: white;
    color: black;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --border-color: #666666;
  }
  
  .card,
  .tool-card,
  .cert-card {
    border-width: 2px;
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}