/* CSS Variables for Premium Dark Theme */
:root {
  --bg-color: #080c14;
  --panel-bg: rgba(13, 20, 38, 0.6);
  --card-bg: rgba(20, 30, 54, 0.45);
  --card-hover-bg: rgba(28, 41, 73, 0.65);
  --border-color: rgba(255, 255, 255, 0.07);
  --border-hover: rgba(139, 92, 246, 0.4);
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  
  --primary-glow: rgba(139, 92, 246, 0.15);
  --accent-purple: #8b5cf6;
  --accent-blue: #3b82f6;
  --accent-green: #10b981;
  --accent-red: #ef4444;
  --accent-cyan: #06b6d4;

  --grad-primary: linear-gradient(135deg, #8b5cf6 0%, #3b82f6 100%);
  --grad-green: linear-gradient(135deg, #10b981 0%, #059669 100%);
  --grad-danger: linear-gradient(135deg, #ef4444 0%, #b91c1c 100%);
  --grad-dark: linear-gradient(135deg, #1f2937 0%, #111827 100%);
  
  --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px rgba(139, 92, 246, 0.25);
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-pill: 9999px;
  
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-color);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  position: relative;
}

/* Background Glowing Orbs */
.bg-glow {
  position: fixed;
  width: 50vw;
  height: 50vw;
  border-radius: 50%;
  filter: blur(140px);
  pointer-events: none;
  z-index: -1;
  opacity: 0.22;
}

.bg-glow-1 {
  background: radial-gradient(circle, var(--accent-purple) 0%, transparent 70%);
  top: -10%;
  left: -10%;
}

.bg-glow-2 {
  background: radial-gradient(circle, var(--accent-blue) 0%, transparent 70%);
  bottom: -10%;
  right: -10%;
}

/* Scrollbar styling */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: rgba(8, 12, 20, 0.5);
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-pill);
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.25);
}

/* Layout - Header */
.app-header {
  background: rgba(13, 20, 38, 0.4);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  padding: 1.25rem 2rem;
  sticky: top;
  z-index: 10;
}

.header-container {
  max-width: 1600px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo-icon {
  width: 42px;
  height: 42px;
  filter: drop-shadow(0 0 8px rgba(139, 92, 246, 0.4));
}

.logo-area h1 {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  background: linear-gradient(120deg, #fff 30%, #a78bfa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-area .subtitle {
  font-size: 0.825rem;
  color: var(--text-secondary);
  margin-top: 0.1rem;
}

.logo-area .subtitle code {
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  background: rgba(255,255,255,0.05);
  padding: 1px 4px;
  border-radius: 4px;
}

/* Presets */
.presets-container {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.preset-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.preset-buttons {
  display: flex;
  gap: 0.5rem;
}

/* Layout - Main Content */
.app-layout {
  max-width: 1600px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem;
  display: grid;
  grid-template-columns: 280px 1fr 400px;
  gap: 2rem;
  flex: 1;
  min-height: 0; /* Important for flex child grids */
}

/* Sidebar Styling */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.search-box {
  position: relative;
  width: 100%;
}

.search-icon {
  position: absolute;
  left: 0.85rem;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: var(--text-muted);
  pointer-events: none;
}

.search-box input {
  width: 100%;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem 0.75rem 2.5rem;
  color: #fff;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  outline: none;
  transition: var(--transition-fast);
}

.search-box input:focus {
  border-color: var(--accent-purple);
  box-shadow: 0 0 12px rgba(139, 92, 246, 0.15);
  background: rgba(15, 23, 42, 0.8);
}

.category-nav {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  background: var(--panel-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 0.75rem;
  box-shadow: var(--shadow-sm);
}

.category-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 500;
  text-align: left;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: var(--transition-fast);
}

.category-btn:hover {
  background: rgba(255, 255, 255, 0.03);
  color: #fff;
}

.category-btn.active {
  background: var(--grad-primary);
  color: #fff;
  font-weight: 600;
  box-shadow: var(--shadow-glow);
}

.category-count {
  font-size: 0.75rem;
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  padding: 2px 6px;
  border-radius: 10px;
  transition: var(--transition-fast);
}

.category-btn.active .category-count {
  background: rgba(0, 0, 0, 0.2);
}

.sidebar-footer {
  margin-top: auto;
  padding: 0.5rem 0.75rem;
}

.sidebar-footer p {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.doc-link {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.8rem;
  color: var(--accent-blue);
  text-decoration: none;
  margin-top: 0.35rem;
  transition: var(--transition-fast);
}

.doc-link:hover {
  color: var(--accent-purple);
  text-decoration: underline;
}

/* Form Area Styling */
.form-section {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.section-header {
  background: var(--panel-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow-sm);
}

.section-header h2 {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.section-header p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

.config-form {
  flex: 1;
}

.parameters-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1rem;
}

/* Parameter Card */
.param-card {
  background: var(--card-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem 1.15rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 0.75rem;
  position: relative;
  transition: transform 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  cursor: help;
}

.param-card:hover {
  transform: translateY(-2px);
  background-color: var(--card-hover-bg);
  border-color: var(--border-hover);
  box-shadow: 0 4px 20px rgba(139, 92, 246, 0.08);
}

.param-info {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.5rem;
}

.param-label {
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  word-break: break-all;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.param-help-indicator {
  width: 14px;
  height: 14px;
  color: var(--text-muted);
  flex-shrink: 0;
}

.param-card:hover .param-help-indicator {
  color: var(--accent-purple);
}

/* Control Element Styling */
.param-control {
  margin-top: auto;
}

/* Text & Select Inputs */
.input-text, .input-select {
  width: 100%;
  background: rgba(8, 12, 22, 0.7);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.75rem;
  color: #fff;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  outline: none;
  transition: var(--transition-fast);
}

.input-text:focus, .input-select:focus {
  border-color: var(--accent-purple);
  box-shadow: 0 0 8px rgba(139, 92, 246, 0.2);
  background: rgba(8, 12, 22, 0.9);
}

/* Switch (Checkbox) Styling */
.switch-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  cursor: pointer;
}

.switch-label-status {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: var(--transition-fast);
}

.switch-label-status.status-true {
  color: var(--accent-green);
}
.switch-label-status.status-false {
  color: var(--text-muted);
}

.switch-widget {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

.switch-widget input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider-switch {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(255, 255, 255, 0.1);
  transition: .3s;
  border-radius: 24px;
  border: 1px solid var(--border-color);
}

.slider-switch:before {
  position: absolute;
  content: "";
  height: 16px;
  width: 16px;
  left: 3px;
  bottom: 3px;
  background-color: #fff;
  transition: .3s;
  border-radius: 50%;
  box-shadow: 0 2px 4px rgba(0,0,0,0.4);
}

input:checked + .slider-switch {
  background-color: var(--accent-green);
}

input:checked + .slider-switch:before {
  transform: translateX(20px);
}

/* Slider (Range) Styling */
.slider-container {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  width: 100%;
}

.slider-values {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.slider-current-val {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent-cyan);
}

.input-slider {
  -webkit-appearance: none;
  width: 100%;
  height: 5px;
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.1);
  outline: none;
  transition: background 0.3s;
}

.input-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #fff;
  cursor: pointer;
  box-shadow: 0 0 10px rgba(139, 92, 246, 0.8), 0 2px 4px rgba(0,0,0,0.5);
  transition: transform 0.1s ease;
}

.input-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.slider-bounds {
  display: flex;
  justify-content: space-between;
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* Buttons System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 1.15rem;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
}

.btn-primary {
  background: var(--grad-primary);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

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

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-glass {
  background: rgba(59, 130, 246, 0.1);
  color: #60a5fa;
  border: 1px solid rgba(59, 130, 246, 0.2);
}

.btn-glass:hover {
  background: rgba(59, 130, 246, 0.2);
  border-color: rgba(59, 130, 246, 0.4);
}

.btn-preset {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-secondary);
  font-size: 0.75rem;
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--border-color);
}

.btn-preset:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  border-color: rgba(255,255,255,0.15);
}

.btn-preset.active {
  background: rgba(139, 92, 246, 0.15);
  color: #c084fc;
  border-color: rgba(139, 92, 246, 0.4);
  box-shadow: 0 0 10px rgba(139, 92, 246, 0.1);
}

.btn-icon svg {
  transition: transform var(--transition-fast);
}

.btn-icon:hover svg {
  transform: translateY(-1px);
}

/* Output Preview Panel Styling */
.preview-panel {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  height: calc(100vh - 100px - 2rem); /* Fits the layout perfectly */
  position: sticky;
  top: 100px;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.panel-header h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
}

.code-container {
  flex: 1;
  background: #040711;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  overflow: auto;
  position: relative;
  box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.8);
}

.code-container pre {
  margin: 0;
}

.code-container code {
  font-family: var(--font-mono);
  font-size: 0.825rem;
  line-height: 1.5;
  color: #cbd5e1;
  white-space: pre-wrap;
  word-break: break-all;
}

.action-buttons-group {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.75rem;
}

.save-info-card {
  background: rgba(30, 41, 59, 0.2);
  border: 1px dashed rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  display: flex;
  gap: 0.75rem;
}

.save-info-card h4 {
  font-size: 0.825rem;
  font-weight: 700;
  color: #fff;
}

.save-info-card p {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 0.15rem;
}

.save-info-card .info-icon {
  color: var(--accent-blue);
  flex-shrink: 0;
}

.path-snippet {
  background: rgba(0, 0, 0, 0.3);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent-cyan);
  display: inline-block;
  margin-top: 0.25rem;
}

.path-snippet-linux {
  font-size: 0.7rem;
  margin-top: 0.25rem;
  color: var(--text-muted);
}

/* Custom Tooltip */
.custom-tooltip {
  position: fixed;
  background: rgba(10, 15, 28, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(139, 92, 246, 0.35);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.6), var(--shadow-glow);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  color: var(--text-primary);
  max-width: 320px;
  z-index: 1000;
  pointer-events: none;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.15s ease, transform 0.15s ease;
}

.custom-tooltip.visible {
  opacity: 1;
  transform: translateY(0);
}

.tooltip-default-value {
  margin-top: 0.35rem;
  padding-top: 0.35rem;
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 0.75rem;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
}

/* Modals */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(5, 7, 13, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal-overlay.visible {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background: #0d1426;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 600px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transform: scale(0.95);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-overlay.visible .modal-card {
  transform: scale(1);
}

.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h3 {
  font-size: 1.15rem;
  font-weight: 700;
}

.btn-close {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-close:hover {
  color: #fff;
}

.modal-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.modal-body p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.modal-body textarea {
  width: 100%;
  height: 200px;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem;
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  outline: none;
  resize: none;
  transition: var(--transition-fast);
}

.modal-body textarea:focus {
  border-color: var(--accent-purple);
  box-shadow: 0 0 10px rgba(139, 92, 246, 0.15);
}

.error-msg {
  color: var(--accent-red);
  font-size: 0.8rem;
  font-weight: 600;
}

.modal-footer {
  padding: 1.25rem 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

/* Helpers */
.hidden {
  display: none !important;
}

/* Interactive States & Micro-animations */
.icon-success {
  animation: scaleIn 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes scaleIn {
  0% { transform: scale(0.5); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

/* Responsive styles */
@media (max-width: 1400px) {
  .app-layout {
    grid-template-columns: 240px 1fr 340px;
    gap: 1.5rem;
    padding: 1.5rem;
  }
}

@media (max-width: 1100px) {
  .app-layout {
    grid-template-columns: 200px 1fr;
    grid-template-rows: auto auto;
  }
  
  .preview-panel {
    grid-column: span 2;
    height: auto;
    position: static;
  }
}

@media (max-width: 768px) {
  .app-header {
    padding: 1rem;
  }
  
  .header-container {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  
  .presets-container {
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
  }
  
  .preset-buttons {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 0.25rem;
  }
  
  .app-layout {
    grid-template-columns: 1fr;
    padding: 1rem;
    gap: 1rem;
  }
  
  .sidebar {
    grid-column: span 1;
  }
  
  .form-section {
    grid-column: span 1;
  }
  
  .preview-panel {
    grid-column: span 1;
  }
  
  .parameters-grid {
    grid-template-columns: 1fr;
  }
}