/* 
 * tools.supah.ai — Modern 2026 Design System
 * Glassmorphism, smooth animations, accessible, award-winning
 */

:root {
  /* Color palette — SUPAH brand + modern gradients */
  --primary: #7C3AED;
  --primary-light: #A78BFA;
  --primary-dark: #5B21B6;
  --base-blue: #0052FF;
  --accent: #F59E0B;
  --success: #10B981;
  --danger: #EF4444;
  
  /* Neutrals — darker, matches app.supah.ai */
  --bg-dark: #0A0A0F;
  --bg-elevated: #121218;
  --bg-glass: rgba(18, 18, 24, 0.85);
  --text-primary: #FFFFFF;
  --text-secondary: #B4B4C8;
  --text-muted: #6B6B7F;
  --border: rgba(167, 139, 250, 0.15);
  --border-hover: rgba(167, 139, 250, 0.35);
  
  /* Spacing scale */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
  
  /* Shadows — layered depth */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.2);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 20px rgba(124, 58, 237, 0.3);
  
  /* Border radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Sidebar */
  --sidebar-width: 280px;
  --sidebar-collapsed: 72px;
}

/* Reset + Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: #0A0A0F;
  background-image: 
    radial-gradient(at 0% 0%, rgba(124, 58, 237, 0.08) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(0, 82, 255, 0.05) 0px, transparent 50%);
  background-attachment: fixed;
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Lucide Icons */
.lucide {
  width: 20px;
  height: 20px;
  stroke-width: 2;
  stroke: currentColor;
  fill: none;
  flex-shrink: 0;
}

.nav-icon .lucide {
  width: 20px;
  height: 20px;
}

/* Sidebar Navigation */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  width: var(--sidebar-width);
  background: var(--bg-glass);
  backdrop-filter: blur(20px) saturate(180%);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  transition: width var(--transition-slow);
  z-index: 1000;
  overflow: hidden;
}

.sidebar.collapsed {
  width: var(--sidebar-collapsed);
}

.sidebar-header {
  padding: var(--space-xl) var(--space-lg);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  min-height: 80px;
}

/* When collapsed, center the toggle button */
.sidebar.collapsed .sidebar-header {
  justify-content: center;
  padding: var(--space-xl) var(--space-md);
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 1.25rem;
  white-space: nowrap;
}

.sidebar-logo-icon {
  font-size: 2rem;
  transition: transform var(--transition-base);
}

.sidebar-logo:hover .sidebar-logo-icon {
  transform: scale(1.1) rotate(-5deg);
}

.sidebar-toggle {
  background: rgba(124, 58, 237, 0.2);
  border: 1px solid rgba(124, 58, 237, 0.4);
  color: var(--primary-light);
  cursor: pointer;
  padding: var(--space-sm);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  min-width: 44px;
  min-height: 44px;
  flex-shrink: 0;
  position: relative;
  z-index: 10;
}

.sidebar-toggle:hover {
  background: rgba(124, 58, 237, 0.35);
  border-color: var(--primary);
  transform: scale(1.05);
  box-shadow: 0 0 12px rgba(124, 58, 237, 0.4);
}

.sidebar-toggle:active {
  transform: scale(0.95);
}

/* Always visible, even when collapsed */
.sidebar.collapsed .sidebar-toggle {
  opacity: 1 !important;
  visibility: visible !important;
  pointer-events: all !important;
  display: flex !important;
}

.sidebar-nav {
  flex: 1;
  padding: var(--space-lg) 0;
  overflow-y: auto;
  overflow-x: hidden;
}

.sidebar-nav::-webkit-scrollbar {
  width: 4px;
}

.sidebar-nav::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: var(--radius-full);
}

.nav-section {
  margin-bottom: var(--space-xl);
}

.nav-section-title {
  padding: var(--space-sm) var(--space-lg);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  white-space: nowrap;
  opacity: 1;
  transition: opacity var(--transition-fast);
}

.sidebar.collapsed .nav-section-title {
  opacity: 0;
  pointer-events: none;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  color: var(--text-secondary);
  text-decoration: none;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.nav-link::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 3px;
  background: var(--primary);
  transform: scaleY(0);
  transition: transform var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  background: rgba(167, 139, 250, 0.08);
  color: var(--text-primary);
}

.nav-link.active::before {
  transform: scaleY(1);
}

.nav-icon {
  font-size: 1.25rem;
  min-width: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-text {
  white-space: nowrap;
  opacity: 1;
  transition: opacity var(--transition-fast);
}

.sidebar.collapsed .nav-text {
  opacity: 0;
  pointer-events: none;
}

.nav-badge {
  margin-left: auto;
  padding: 0.125rem 0.5rem;
  background: var(--primary);
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  opacity: 1;
  transition: opacity var(--transition-fast);
}

.sidebar.collapsed .nav-badge {
  opacity: 0;
  pointer-events: none;
}

/* Tooltip for collapsed sidebar */
.nav-link[data-tooltip] {
  position: relative;
}

.sidebar.collapsed .nav-link::after {
  content: attr(data-tooltip);
  position: absolute;
  left: 100%;
  top: 50%;
  transform: translateY(-50%) translateX(var(--space-sm));
  background: var(--bg-elevated);
  color: var(--text-primary);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  z-index: 10;
}

.sidebar.collapsed .nav-link:hover::after {
  opacity: 1;
}

/* Main Content */
.main-wrapper {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  transition: margin-left var(--transition-slow);
  display: flex;
  flex-direction: column;
}

.sidebar.collapsed ~ .main-wrapper {
  margin-left: var(--sidebar-collapsed);
}

/* Top Bar */
.topbar {
  background: var(--bg-glass);
  backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border);
  padding: var(--space-lg) var(--space-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  position: sticky;
  top: 0;
  z-index: 100;
}

.topbar-search {
  flex: 1;
  max-width: 500px;
}

.search-wrapper {
  position: relative;
}

.search-input {
  width: 100%;
  padding: var(--space-md) var(--space-md) var(--space-md) 2.75rem;
  background: rgba(26, 26, 46, 0.5);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  transition: all var(--transition-fast);
}

.search-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
  background: rgba(26, 26, 46, 0.8);
}

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

.search-icon {
  position: absolute;
  left: var(--space-md);
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.action-btn {
  padding: var(--space-md);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  transition: all var(--transition-fast);
}

.action-btn:hover {
  background: rgba(167, 139, 250, 0.1);
  border-color: var(--primary);
  color: var(--text-primary);
}

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

.action-btn.primary:hover {
  background: var(--primary-dark);
  box-shadow: var(--shadow-glow);
}

/* Main Content Area */
.content {
  flex: 1;
  padding: var(--space-2xl);
}

.content-header {
  margin-bottom: var(--space-2xl);
}

.content-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.content-subtitle {
  color: var(--text-secondary);
  font-size: 1.125rem;
}

/* Tool Cards Grid */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

.tool-card {
  background: rgba(18, 18, 24, 0.6);
  backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.tool-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--base-blue));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.tool-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl), var(--shadow-glow);
  border-color: var(--border-hover);
}

.tool-card:hover::before {
  transform: scaleX(1);
}

.tool-icon {
  font-size: 2rem;
  margin-bottom: var(--space-md);
  display: inline-block;
  opacity: 0.9;
  transition: all var(--transition-fast);
}

.tool-card:hover .tool-icon {
  opacity: 1;
  transform: scale(1.1);
}

.tool-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
  line-height: 1.4;
}

.tool-description {
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  line-height: 1.5;
  font-size: 0.9375rem;
}

.tool-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.tool-tag {
  padding: 0.25rem 0.75rem;
  background: rgba(167, 139, 250, 0.15);
  border: 1px solid rgba(167, 139, 250, 0.3);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  color: var(--primary-light);
  font-weight: 500;
}

.tool-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--primary-light);
  text-decoration: none;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.tool-cta:hover {
  color: var(--primary);
  gap: var(--space-md);
}

/* Status Indicator */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.375rem 0.875rem;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.status-badge.live {
  background: rgba(16, 185, 129, 0.15);
  color: var(--success);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.status-badge.coming-soon {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes togglePulse {
  0%, 100% { 
    box-shadow: 0 0 8px rgba(124, 58, 237, 0.3);
  }
  50% { 
    box-shadow: 0 0 16px rgba(124, 58, 237, 0.5);
  }
}

.sidebar.collapsed .sidebar-toggle {
  animation: togglePulse 2s ease-in-out infinite;
}

/* Code Block */
.code-block {
  background: #000000;
  border: 1px solid rgba(124, 58, 237, 0.2);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: #E0E0E0;
  overflow-x: auto;
  margin: var(--space-lg) 0;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.5);
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    width: var(--sidebar-width);
  }
  
  .sidebar.mobile-open {
    transform: translateX(0);
  }
  
  .sidebar.collapsed {
    transform: translateX(-100%);
  }
  
  .main-wrapper {
    margin-left: 0;
  }
  
  .sidebar.collapsed ~ .main-wrapper {
    margin-left: 0;
  }
  
  .mobile-menu-btn {
    position: fixed;
    bottom: var(--space-lg);
    right: var(--space-lg);
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    border: none;
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 999;
    transition: all var(--transition-fast);
  }
  
  .mobile-menu-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-glow), var(--shadow-xl);
  }
  
  .content {
    padding: var(--space-lg);
  }
  
  .tools-grid {
    grid-template-columns: 1fr;
  }
  
  .topbar {
    padding: var(--space-md) var(--space-lg);
    flex-wrap: wrap;
  }
  
  .topbar-search {
    order: 3;
    width: 100%;
    max-width: none;
  }
}

@media (max-width: 480px) {
  .content-title {
    font-size: 1.5rem;
  }
  
  .content-subtitle {
    font-size: 1rem;
  }
}

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

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

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