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

:root {
  --bg-primary: #0a0b1e;
  --bg-secondary: #0f1025;
  --bg-tertiary: #151630;
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-hover: rgba(255, 255, 255, 0.08);
  
  --text-primary: #ffffff;
  --text-secondary: #b8b9c7;
  --text-muted: #7c7d8a;
  
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --gradient-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  --gradient-success: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
  --gradient-danger: linear-gradient(135deg, #ff416c 0%, #ff4b2b 100%);
  --gradient-dark: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);
  --shadow-xl: 0 16px 64px rgba(0, 0, 0, 0.25);
  
  --border-radius-sm: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 16px;
  --border-radius-xl: 24px;
  
  --transition-fast: 0.15s ease-out;
  --transition-normal: 0.3s ease-out;
  --transition-slow: 0.5s ease-out;
}

* {
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-primary);
  background-image: 
    radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255, 119, 198, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, rgba(120, 219, 255, 0.1) 0%, transparent 50%);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background 0.3s ease, color 0.3s ease;
  -moz-osx-font-smoothing: grayscale;
}

/* Glassmorphism Cards */
.card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
}

.card:hover {
  background: var(--glass-hover);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

/* Buttons */
.btn {
  font-family: inherit;
  font-weight: 600;
  border-radius: var(--border-radius-md);
  padding: 12px 24px;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 14px;
  line-height: 1;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left var(--transition-normal);
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn-danger {
  background: var(--gradient-danger);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-danger:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn-ghost {
  background: var(--glass-bg);
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(20px);
}

.btn-ghost:hover {
  background: var(--glass-hover);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-1px);
}

/* Sidebar */
.sidebar {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-right: 1px solid var(--glass-border);
  position: fixed;
  left: 0;
  top: 0;
  height: 100vh;
  z-index: 50;
  overflow-y: auto;
  overflow-x: hidden;
}

.sidebar::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 1px;
  height: 100%;
  background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.2), transparent);
}

.sidebar a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: all var(--transition-fast);
  position: relative;
  display: flex;
  align-items: center;
  padding: 12px 16px;
  border-radius: var(--border-radius-md);
  margin: 4px 0;
}

.sidebar a::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 0;
  background: var(--gradient-primary);
  border-radius: var(--border-radius-md);
  transition: width var(--transition-normal);
}

.sidebar a.active {
  background: rgba(102, 126, 234, 0.1);
  color: var(--text-primary);
  border: 1px solid rgba(102, 126, 234, 0.2);
}

.sidebar a.active::before {
  width: 3px;
}

.sidebar a:hover {
  color: var(--text-primary);
  background: var(--glass-hover);
  transform: translateX(4px);
}

/* Badges */
.badge {
  border-radius: 9999px;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.badge-green {
  background: var(--gradient-success);
  color: white;
  box-shadow: var(--shadow-sm);
}

.badge-red {
  background: var(--gradient-danger);
  color: white;
  box-shadow: var(--shadow-sm);
}

/* Progress Ring */
.ring {
  height: 8px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius-sm);
  overflow: hidden;
  position: relative;
}

.ring::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  animation: shimmer 2s infinite;
}

.ring > div {
  height: 100%;
  background: var(--gradient-accent);
  width: 0%;
  transition: width var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.ring > div::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  animation: shimmer 1.5s infinite;
}

/* Form Elements */
input, select, textarea {
  font-family: inherit;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-md);
  padding: 12px 16px;
  color: var(--text-primary);
  backdrop-filter: blur(20px);
  transition: all var(--transition-fast);
  width: 100%;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: rgba(102, 126, 234, 0.5);
  background: var(--glass-hover);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

input::placeholder, textarea::placeholder {
  color: var(--text-muted);
}

/* Section Styles */
.section-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-sub {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
  margin-bottom: 8px;
}

.kv {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 12px;
  align-items: center;
}

/* Animations */
@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

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

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(100%); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes slideOutRight {
  from { opacity: 1; transform: translateX(0); }
  to { opacity: 0; transform: translateX(100%); }
}

/* Utility Classes */
.animate-fadeIn {
  animation: fadeIn 0.6s ease-out;
}

.animate-fadeInUp {
  animation: fadeInUp 0.6s ease-out;
}

.animate-slideInRight {
  animation: slideInRight 0.3s ease-out;
}

.animate-slideOutRight {
  animation: slideOutRight 0.3s ease-in;
}

.animate-pulse {
  animation: pulse 2s infinite;
}

/* Responsive Design */
@media (max-width: 768px) {
  .kv {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  
  .btn {
    padding: 10px 20px;
    font-size: 13px;
  }
  
  .card {
    border-radius: var(--border-radius-md);
  }
}

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

::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--border-radius-sm);
}

::-webkit-scrollbar-thumb {
  background: var(--gradient-primary);
  border-radius: var(--border-radius-sm);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gradient-secondary);
}

/* Sidebar Scrollbar */
.sidebar::-webkit-scrollbar {
  width: 4px;
}

.sidebar::-webkit-scrollbar-track {
  background: transparent;
}

.sidebar::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2);
  border-radius: 2px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* Modal Styles */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  animation: fadeIn 0.3s ease-out;
}

.modal-content {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-xl);
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  animation: fadeInUp 0.3s ease-out;
}

/* Loading States */
.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spin 1s ease-in-out infinite;
}

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

/* Enhanced Form Styles */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 14px;
}

.form-input {
  width: 100%;
  padding: 12px 16px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-md);
  color: var(--text-primary);
  backdrop-filter: blur(20px);
  transition: all var(--transition-fast);
  font-size: 14px;
}

.form-input:focus {
  outline: none;
  border-color: rgba(102, 126, 234, 0.5);
  background: var(--glass-hover);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

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

/* Enhanced Button Variants */
.btn-secondary {
  background: var(--gradient-dark);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn-success {
  background: var(--gradient-success);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-success:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

/* Enhanced Card Variants */
.card-hover {
  transition: all var(--transition-normal);
}

.card-hover:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.card-interactive {
  cursor: pointer;
  transition: all var(--transition-normal);
}

.card-interactive:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: var(--shadow-xl);
}

/* Status Indicators */
.status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 9999px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.status-active {
  background: var(--gradient-success);
  color: white;
}

.status-inactive {
  background: var(--gradient-danger);
  color: white;
}

.status-pending {
  background: var(--gradient-dark);
  color: white;
}

/* Icon Styles */
.icon-wrapper {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
}

.icon-wrapper-lg {
  width: 60px;
  height: 60px;
  font-size: 24px;
}

/* Text Gradients */
.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-success {
  background: var(--gradient-success);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-danger {
  background: var(--gradient-danger);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Theme Variables and Styles */
:root {
  /* Light theme variables */
  --light-bg-primary: #fafbfc;
  --light-bg-secondary: #f1f5f9;
  --light-bg-tertiary: #e2e8f0;
  --light-glass-bg: rgba(255, 255, 255, 0.8);
  --light-glass-border: rgba(148, 163, 184, 0.3);
  --light-glass-hover: rgba(255, 255, 255, 0.9);
  --light-text-primary: #0f172a;
  --light-text-secondary: #334155;
  --light-text-muted: #64748b;
}

/* Dark theme (default) */
[data-theme="dark"] {
  --bg-primary: #0a0b1e;
  --bg-secondary: #0f1025;
  --bg-tertiary: #151630;
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-hover: rgba(255, 255, 255, 0.08);
  --text-primary: #ffffff;
  --text-secondary: #b8b9c7;
  --text-muted: #7c7d8a;
}

/* Light theme */
[data-theme="light"] {
  --bg-primary: var(--light-bg-primary);
  --bg-secondary: var(--light-bg-secondary);
  --bg-tertiary: var(--light-bg-tertiary);
  --glass-bg: var(--light-glass-bg);
  --glass-border: var(--light-glass-border);
  --glass-hover: var(--light-glass-hover);
  --text-primary: var(--light-text-primary);
  --text-secondary: var(--light-text-secondary);
  --text-muted: var(--light-text-muted);
}

/* Light theme specific styles */
[data-theme="light"] body {
  background: var(--light-bg-primary);
  background-image: 
    radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255, 119, 198, 0.04) 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, rgba(120, 219, 255, 0.02) 0%, transparent 50%);
  color: var(--light-text-primary);
}

[data-theme="light"] .card {
  background: var(--light-glass-bg);
  border: 1px solid var(--light-glass-border);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  backdrop-filter: blur(20px);
}

[data-theme="light"] .card:hover {
  background: var(--light-glass-hover);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.12);
}

[data-theme="light"] .sidebar {
  background: var(--light-glass-bg);
  border-right: 1px solid var(--light-glass-border);
  backdrop-filter: blur(20px);
}

[data-theme="light"] input,
[data-theme="light"] textarea,
[data-theme="light"] select {
  background: var(--light-bg-tertiary);
  border: 1px solid var(--light-glass-border);
  color: var(--light-text-primary);
}

[data-theme="light"] input::placeholder,
[data-theme="light"] textarea::placeholder {
  color: var(--light-text-muted);
}

[data-theme="light"] input:focus,
[data-theme="light"] textarea:focus,
[data-theme="light"] select:focus {
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
  background: #ffffff;
}

/* Light theme navigation */
[data-theme="light"] .sidebar a {
  color: var(--light-text-secondary);
}

[data-theme="light"] .sidebar a:hover {
  background: rgba(59, 130, 246, 0.1);
  color: var(--light-text-primary);
}

[data-theme="light"] .sidebar a.active {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.2) 0%, rgba(147, 51, 234, 0.2) 100%);
  color: var(--light-text-primary);
  border: 1px solid rgba(59, 130, 246, 0.3);
}

/* Light theme buttons */
[data-theme="light"] .btn-primary {
  background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
  color: white;
  border: none;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

[data-theme="light"] .btn-primary:hover {
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
  transform: translateY(-1px);
}

/* Light theme tabs */
[data-theme="light"] .settings-tab {
  color: var(--light-text-secondary);
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid var(--light-glass-border);
}

[data-theme="light"] .settings-tab:hover {
  background: rgba(255, 255, 255, 0.8);
  color: var(--light-text-primary);
}

[data-theme="light"] .settings-tab.active {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.15) 0%, rgba(147, 51, 234, 0.15) 100%);
  color: var(--light-text-primary);
  border: 1px solid rgba(59, 130, 246, 0.3);
}

/* Light theme text gradients */
[data-theme="light"] .text-gradient {
  background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Auto theme - follows system preference */
[data-theme="auto"] {
  /* Uses system preference via CSS media query */
}

@media (prefers-color-scheme: light) {
  [data-theme="auto"] {
    --bg-primary: var(--light-bg-primary);
    --bg-secondary: var(--light-bg-secondary);
    --bg-tertiary: var(--light-bg-tertiary);
    --glass-bg: var(--light-glass-bg);
    --glass-border: var(--light-glass-border);
    --glass-hover: var(--light-glass-hover);
    --text-primary: var(--light-text-primary);
    --text-secondary: var(--light-text-secondary);
    --text-muted: var(--light-text-muted);
  }
  
  [data-theme="auto"] body {
    background: var(--light-bg-primary);
    background-image: 
      radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.1) 0%, transparent 50%),
      radial-gradient(circle at 80% 20%, rgba(255, 119, 198, 0.05) 0%, transparent 50%),
      radial-gradient(circle at 40% 40%, rgba(120, 219, 255, 0.03) 0%, transparent 50%);
    color: var(--light-text-primary);
  }
}