/* ============================================
   SERVER UI TRAEFIK - DESIGN SYSTEM
   Premium Dark Theme with Glassmorphism
   ============================================ */

/* ============================================
   IMPORTS
   ============================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ============================================
   CSS VARIABLES
   ============================================ */
:root {
  /* Background Colors */
  --bg-primary: #0a0f1a;
  --bg-secondary: #0d1320;
  --bg-tertiary: #111827;
  --bg-elevated: #1a2332;
  
  /* Glassmorphism */
  --glass-bg: rgba(17, 24, 39, 0.65);
  --glass-bg-hover: rgba(17, 24, 39, 0.85);
  --glass-bg-active: rgba(17, 24, 39, 0.95);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-border-hover: rgba(255, 255, 255, 0.15);
  --glass-border-active: rgba(255, 255, 255, 0.25);
  --glass-blur: blur(20px);
  --glass-blur-heavy: blur(30px);
  
  /* Accent Colors */
  --accent-primary: #3b82f6;
  --accent-primary-light: #60a5fa;
  --accent-primary-dark: #2563eb;
  --accent-primary-glow: rgba(59, 130, 246, 0.4);
  
  --accent-secondary: #8b5cf6;
  --accent-secondary-light: #a78bfa;
  --accent-secondary-dark: #7c3aed;
  --accent-secondary-glow: rgba(139, 92, 246, 0.4);
  
  --accent-success: #10b981;
  --accent-success-light: #34d399;
  --accent-success-glow: rgba(16, 185, 129, 0.4);
  
  --accent-warning: #f59e0b;
  --accent-warning-light: #fbbf24;
  --accent-warning-glow: rgba(245, 158, 11, 0.4);
  
  --accent-danger: #ef4444;
  --accent-danger-light: #f87171;
  --accent-danger-glow: rgba(239, 68, 68, 0.4);
  
  --accent-info: #06b6d4;
  --accent-info-light: #22d3ee;
  --accent-info-glow: rgba(6, 182, 212, 0.4);
  
  /* Text Colors */
  --text-primary: #f9fafb;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --text-inverse: #111827;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
  --gradient-primary-reverse: linear-gradient(135deg, #8b5cf6 0%, #3b82f6 100%);
  --gradient-success: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);
  --gradient-warning: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
  --gradient-danger: linear-gradient(135deg, #ef4444 0%, #f59e0b 100%);
  --gradient-glass: linear-gradient(180deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0) 100%);
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6), 0 10px 10px -5px rgba(0, 0, 0, 0.4);
  --shadow-glow-primary: 0 0 20px var(--accent-primary-glow);
  --shadow-glow-success: 0 0 20px var(--accent-success-glow);
  --shadow-glow-danger: 0 0 20px var(--accent-danger-glow);
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', 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;
  
  /* 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;
  
  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;
  --radius-2xl: 24px;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
  --transition-bounce: 300ms cubic-bezier(0.34, 1.56, 0.64, 1);
  
  /* Z-index Scale */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-modal: 1000;
  --z-tooltip: 1100;
  --z-toast: 1200;
}

/* ============================================
   BASE STYLES
   ============================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-primary);
  font-size: var(--text-base);
  line-height: 1.5;
  color: var(--text-primary);
  background: var(--bg-primary);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Animated Background Gradient */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(ellipse at 20% 20%, rgba(59, 130, 246, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(139, 92, 246, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(6, 182, 212, 0.05) 0%, transparent 70%);
  pointer-events: none;
  z-index: -1;
}

/* Grid Pattern Overlay */
body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
  z-index: -1;
}

/* Selection */
::selection {
  background: var(--accent-primary-glow);
  color: var(--text-primary);
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb {
  background: var(--glass-border-hover);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--glass-border-active);
}

/* Focus Styles */
:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  color: var(--text-primary);
}

h1 { font-size: var(--text-3xl); }
h2 { font-size: var(--text-2xl); }
h3 { font-size: var(--text-xl); }
h4 { font-size: var(--text-lg); }
h5 { font-size: var(--text-base); }
h6 { font-size: var(--text-sm); }

p {
  color: var(--text-secondary);
  margin-bottom: var(--space-4);
}

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

a:hover {
  color: var(--accent-primary);
}

code, pre {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

/* Display */
.hidden { display: none !important; }
.block { display: block; }
.inline-block { display: inline-block; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }

/* Flexbox */
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.flex-1 { flex: 1; }
.flex-shrink-0 { flex-shrink: 0; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }

/* Spacing */
.m-0 { margin: 0; }
.m-4 { margin: var(--space-4); }
.mt-4 { margin-top: var(--space-4); }
.mb-4 { margin-bottom: var(--space-4); }
.ml-4 { margin-left: var(--space-4); }
.mr-4 { margin-right: var(--space-4); }

.p-0 { padding: 0; }
.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }

/* Text */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }
.text-xs { font-size: var(--text-xs); }
.text-sm { font-size: var(--text-sm); }
.text-lg { font-size: var(--text-lg); }
.text-xl { font-size: var(--text-xl); }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.font-mono { font-family: var(--font-mono); }
.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Colors */
.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-accent { color: var(--accent-primary); }
.text-success { color: var(--accent-success); }
.text-warning { color: var(--accent-warning); }
.text-danger { color: var(--accent-danger); }

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

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

@keyframes fadeInScale {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

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

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-20px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(1.05); }
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 5px var(--accent-primary-glow); }
  50% { box-shadow: 0 0 20px var(--accent-primary-glow), 0 0 40px var(--accent-primary-glow); }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes gradient-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Animation Classes */
.animate-fadeIn { animation: fadeIn 0.3s ease; }
.animate-fadeInUp { animation: fadeInUp 0.4s ease; }
.animate-fadeInScale { animation: fadeInScale 0.3s ease; }
.animate-slideInRight { animation: slideInRight 0.3s ease; }
.animate-slideInLeft { animation: slideInLeft 0.3s ease; }
.animate-pulse { animation: pulse 2s infinite; }
.animate-pulse-glow { animation: pulse-glow 2s infinite; }
.animate-spin { animation: spin 1s linear infinite; }
.animate-float { animation: float 3s ease-in-out infinite; }

/* Stagger Animation Delays */
.stagger-1 { animation-delay: 0.05s; }
.stagger-2 { animation-delay: 0.1s; }
.stagger-3 { animation-delay: 0.15s; }
.stagger-4 { animation-delay: 0.2s; }
.stagger-5 { animation-delay: 0.25s; }

/* ============================================
   TOAST NOTIFICATIONS
   ============================================ */
#toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  background: var(--glass-bg-active);
  backdrop-filter: var(--glass-blur-heavy);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  transform: translateX(120%);
  opacity: 0;
  transition: all var(--transition-base);
  pointer-events: auto;
  min-width: 300px;
  max-width: 500px;
}

.toast.show {
  transform: translateX(0);
  opacity: 1;
}

.toast-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  font-weight: 700;
  flex-shrink: 0;
}

.toast-success {
  border-left: 3px solid var(--accent-success);
}

.toast-success .toast-icon {
  background: rgba(16, 185, 129, 0.2);
  color: var(--accent-success);
}

.toast-error {
  border-left: 3px solid var(--accent-danger);
}

.toast-error .toast-icon {
  background: rgba(239, 68, 68, 0.2);
  color: var(--accent-danger);
}

.toast-warning {
  border-left: 3px solid var(--accent-warning);
}

.toast-warning .toast-icon {
  background: rgba(245, 158, 11, 0.2);
  color: var(--accent-warning);
}

.toast-info {
  border-left: 3px solid var(--accent-info);
}

.toast-info .toast-icon {
  background: rgba(6, 182, 212, 0.2);
  color: var(--accent-info);
}

.toast-message {
  font-size: var(--text-sm);
  color: var(--text-primary);
  flex: 1;
}

/* ============================================
   TOOLTIPS
   ============================================ */
.app-tooltip {
  position: absolute;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-xs);
  color: white;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  white-space: nowrap;
  z-index: var(--z-tooltip);
  pointer-events: none;
  box-shadow: var(--shadow-md);
}

/* ============================================
   RESPONSIVE UTILITIES
   ============================================ */
@media (max-width: 768px) {
  :root {
    --text-3xl: 1.5rem;
    --text-2xl: 1.25rem;
    --text-xl: 1.125rem;
  }
  
  .hide-mobile { display: none !important; }
}

@media (min-width: 769px) {
  .show-mobile { display: none !important; }
}