/* ===== MAIN STYLES ===== */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&family=Exo+2:wght@300;400;600&display=swap');

/* CSS Custom Properties for theming */
:root {
  --primary-color: #00ffff;
  --secondary-color: #ff6b6b;
  --accent-color: #4ecdc4;
  --background-color: #0a0a0f;
  --surface-color: rgba(255, 255, 255, 0.05);
  --text-color: #ffffff;
  --text-secondary: #8892b0;
  --border-color: rgba(0, 255, 255, 0.2);
  --shadow-color: rgba(0, 255, 255, 0.1);
  
  /* Team Colors */
  --team-data-analytics: #00ffff;
  --team-data-engineering: #ff6b6b;
  --team-categorization: #4ecdc4;
  --team-network: #ffc107;
  --team-utilities: #9c27b0;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Exo 2', sans-serif;
  background: var(--background-color);
  color: var(--text-color);
  overflow-x: hidden;
  min-height: 100vh;
  line-height: 1.6;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Orbitron', monospace;
  font-weight: 700;
  line-height: 1.2;
}

.title {
  font-size: 3.5rem;
  font-weight: 900;
  background: linear-gradient(45deg, var(--primary-color), var(--secondary-color), var(--accent-color));
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradient-shift 4s ease-in-out infinite;
  text-shadow: 0 0 30px rgba(0, 255, 255, 0.5);
}

.subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-top: var(--spacing-sm);
}

/* Animations */
@keyframes gradient-shift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

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

@keyframes slideIn {
  from { transform: translateX(-100%); }
  to { transform: translateX(0); }
}

/* Layout Components */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.header {
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-lg) var(--spacing-lg);
  position: relative;
}

.header-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-lg);
}

/* Navigation */
.nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
  flex-wrap: wrap;
}

.nav-item {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-color);
  text-decoration: none;
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: 'Orbitron', monospace;
  font-size: 0.9rem;
  font-weight: 600;
  transition: var(--transition-normal);
  backdrop-filter: blur(10px);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.nav-item:hover {
  background: rgba(0, 255, 255, 0.1);
  border-color: var(--primary-color);
  box-shadow: 0 0 20px var(--shadow-color);
  transform: translateY(-2px);
}

.nav-item.active {
  background: rgba(0, 255, 255, 0.2);
  border-color: var(--primary-color);
  box-shadow: 0 0 25px rgba(0, 255, 255, 0.3);
}

/* Team Sections */
.teams-container {
  margin: var(--spacing-xl) 0;
}

.team-section {
  margin-bottom: var(--spacing-xl);
  animation: fadeIn 0.6s ease-out;
}

.team-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--surface-color);
    border-radius: var(--radius-lg);
    border-left: 4px solid;
    transition: var(--transition-normal);
    user-select: none;
}

.team-header:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-1px);
}

.collapse-indicator {
    margin-left: auto;
    font-size: 1.2rem;
    color: var(--text-secondary);
    transition: var(--transition-normal);
}

.team-section.collapsed .collapse-indicator {
    transform: rotate(-90deg);
}

.team-header[data-team="data-analytics"] { border-left-color: var(--team-data-analytics); }
.team-header[data-team="data-engineering"] { border-left-color: var(--team-data-engineering); }
.team-header[data-team="categorization"] { border-left-color: var(--team-categorization); }
.team-header[data-team="network-tools"] { border-left-color: var(--team-network); }
.team-header[data-team="utilities"] { border-left-color: var(--team-utilities); }

.team-icon {
  font-size: 2rem;
  filter: drop-shadow(0 0 10px currentColor);
}

.team-info h2 {
  font-size: 1.8rem;
  margin-bottom: var(--spacing-xs);
}

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

/* Tools Grid */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-md);
}

.tool-card {
  background: var(--surface-color);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  text-decoration: none;
  color: inherit;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.tool-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 255, 255, 0.1), transparent);
  transition: left 0.5s;
}

.tool-card:hover {
  transform: translateY(-8px);
  border-color: var(--primary-color);
  box-shadow: 0 20px 40px var(--shadow-color);
  background: rgba(255, 255, 255, 0.08);
}

.tool-card:hover::before {
  left: 100%;
}

.tool-icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
  display: block;
  filter: drop-shadow(0 0 10px var(--primary-color));
}

.tool-title {
  font-family: 'Orbitron', monospace;
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  color: var(--text-color);
}

.tool-description {
  color: var(--text-secondary);
  line-height: 1.6;
  font-size: 0.9rem;
  margin-bottom: var(--spacing-md);
}

.tool-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-sm);
}

.tool-tag {
  background: rgba(0, 255, 255, 0.1);
  color: var(--primary-color);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Status Badges */
.tool-status {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.status-active {
  background: rgba(76, 175, 80, 0.2);
  color: #4caf50;
  border: 1px solid #4caf50;
}

.status-beta {
  background: rgba(255, 193, 7, 0.2);
  color: #ffc107;
  border: 1px solid #ffc107;
}

.status-development {
  background: rgba(255, 87, 34, 0.2);
  color: #ff5722;
  border: 1px solid #ff5722;
}

.status-coming-soon {
  background: rgba(156, 39, 176, 0.2);
  color: #9c27b0;
  border: 1px solid #9c27b0;
}

/* Search and Filter */
.search-container {
  margin: var(--spacing-lg) 0;
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.search-input {
  flex: 1;
  min-width: 300px;
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-color);
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: 'Exo 2', sans-serif;
  font-size: 1rem;
  outline: none;
  transition: var(--transition-normal);
}

.search-input:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 20px var(--shadow-color);
}

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

.filter-select {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-color);
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: 'Exo 2', sans-serif;
    font-size: 1rem;
    outline: none;
    cursor: pointer;
    transition: var(--transition-normal);
    backdrop-filter: blur(10px);
}

.filter-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 20px var(--shadow-color);
}

/* Custom dropdown styling */
.filter-select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2300ffff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
    padding-right: 40px;
}

/* Dropdown options styling */
.filter-select option {
    background: var(--background-color);
    color: var(--text-color);
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
}

/* Firefox specific styling */
.filter-select:-moz-focusring {
    color: transparent;
    text-shadow: 0 0 0 var(--text-color);
}

/* IE specific styling */
.filter-select::-ms-expand {
    display: none;
}

/* Footer */
.footer {
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-lg);
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: var(--spacing-xl);
  border-top: 1px solid var(--border-color);
}

/* Responsive Design */
@media (max-width: 768px) {
  .title {
    font-size: 2.5rem;
  }
  
  .container {
    padding: 0 var(--spacing-md);
  }
  
  .tools-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .tool-card {
    padding: var(--spacing-md);
  }
  
  .search-container {
    flex-direction: column;
  }
  
  .search-input {
    min-width: auto;
  }
  
  .nav {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
}

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

/* Focus indicators */
.tool-card:focus,
.nav-item:focus,
.search-input:focus,
.filter-select:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 4px;
}

/* Loading States */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid var(--primary-color);
  border-top: 2px solid transparent;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}