/* UltraTTS Pro - Modern Dark Theme */
:root {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --accent-purple: #8b5cf6;
  --accent-pink: #ec4899;
  --accent-green: #10b981;
  --accent-red: #ef4444;
  --border-color: #475569;
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Header */
header {
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
  border-bottom: 1px solid var(--border-color);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

/* Cards */
.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  box-shadow: var(--shadow-lg);
  transition: all 0.3s ease;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 0.5rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-purple), var(--accent-pink));
  color: white;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: var(--bg-tertiary);
  border-color: var(--accent-purple);
}

.btn-success {
  background: var(--accent-green);
  color: white;
}

.btn-danger {
  background: var(--accent-red);
  color: white;
}

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

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.75rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  color: var(--text-primary);
  transition: border-color 0.2s ease;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--accent-purple);
  box-shadow: 0 0 0 2px rgba(139, 92, 246, 0.2);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

/* Range Sliders */
.range-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: var(--bg-tertiary);
  border-radius: 3px;
  outline: none;
}

.range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  background: var(--accent-purple);
  border-radius: 50%;
  cursor: pointer;
}

.range-slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  background: var(--accent-purple);
  border-radius: 50%;
  cursor: pointer;
  border: none;
}

/* Progress Bars */
.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--bg-tertiary);
  border-radius: 4px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-purple), var(--accent-pink));
  transition: width 0.3s ease;
}

/* Loading States */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid var(--border-color);
  border-radius: 50%;
  border-top-color: var(--accent-purple);
  animation: spin 1s ease-in-out infinite;
}

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

/* Notifications */
.notification {
  position: fixed;
  top: 20px;
  right: 20px;
  padding: 1rem 1.5rem;
  border-radius: 0.5rem;
  color: white;
  font-weight: 500;
  z-index: 1000;
  animation: slideIn 0.3s ease;
}

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

.notification.success { background: var(--accent-green); }
.notification.error { background: var(--accent-red); }
.notification.warning { background: var(--accent-yellow); }
.notification.info { background: var(--accent-blue); }

/* Modal Styles */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  max-width: 90vw;
  max-height: 90vh;
  overflow: auto;
}

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    padding: 0 0.5rem;
  }
  
  .grid {
    grid-template-columns: 1fr;
  }
  
  .btn {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
  }
}

@media (max-width: 480px) {
  .card {
    padding: 1rem;
  }
  
  .form-input,
  .form-select,
  .form-textarea {
    padding: 0.5rem;
  }
}

/* Dark/Light Theme */
html.dark body {
  /* Dark theme variables are already set as default in :root */
}

html:not(.dark) body {
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #e2e8f0;
  --text-primary: #1e293b;
  --text-secondary: #475569;
  --border-color: #cbd5e1;
}

html:not(.dark) .form-input,
html:not(.dark) .form-select,
html:not(.dark) .form-textarea {
  background: #ffffff;
  border-color: var(--border-color);
  color: var(--text-primary);
}

html:not(.dark) .bg-gray-900 {
  background-color: #ffffff !important;
}

html:not(.dark) .bg-gray-800 {
  background-color: #f8fafc !important;
}

html:not(.dark) .bg-gray-700 {
  background-color: #e2e8f0 !important;
}

html:not(.dark) .text-white {
  color: #1e293b !important;
}

html:not(.dark) .text-gray-400 {
  color: #475569 !important;
}

html:not(.dark) .border-gray-700 {
  border-color: #cbd5e1 !important;
}

html:not(.dark) .hover\:bg-gray-700:hover {
  background-color: #e2e8f0 !important;
}

html:not(.dark) .hover\:bg-gray-600:hover {
  background-color: #d1d5db !important;
}

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

::-webkit-scrollbar-track {
  background: var(--bg-tertiary);
}

::-webkit-scrollbar-thumb {
  background: var(--accent-purple);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-pink);
}

/* Focus States */
*:focus {
  outline: 2px solid var(--accent-purple);
  outline-offset: 2px;
}

/* Disabled States */
.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* Hover Effects */
.hover-lift:hover {
  transform: translateY(-2px);
  transition: transform 0.2s ease;
}

/* Glass Effect */
.glass {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.hidden { display: none; }
.block { display: block; }
.flex { display: flex; }
.grid { display: grid; }

.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }

.space-x-2 > * + * { margin-left: 0.5rem; }
.space-x-4 > * + * { margin-left: 1rem; }
.space-y-2 > * + * { margin-top: 0.5rem; }
.space-y-4 > * + * { margin-top: 1rem; }

.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }

.p-2 { padding: 0.5rem; }
.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }

.rounded { border-radius: 0.25rem; }
.rounded-lg { border-radius: 0.5rem; }
.rounded-xl { border-radius: 1rem; }

.shadow { box-shadow: var(--shadow-lg); }
.shadow-lg { box-shadow: var(--shadow-xl); }

.transition { transition: all 0.2s ease; }
.transition-all { transition: all 0.3s ease; }

/* Print Styles */
@media print {
  body {
    background: white;
    color: black;
  }
  
  .card {
    box-shadow: none;
    border: 1px solid #ccc;
  }
}