/* ======================================================
   AI VALIDATION STUDIO: PREMIUM DESIGN SYSTEM
   ====================================================== */

:root {
  /* Common System Settings */
  --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'Fira Code', source-code-pro, Menlo, Monaco, Consolas, monospace;
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --border-radius-sm: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 16px;
  --border-radius-xl: 24px;
}

/* 🌙 Dark Theme Tokens */
.dark-theme {
  --bg-app: #07080e;
  --bg-surface: #0e111a;
  --bg-surface-glass: rgba(14, 17, 26, 0.75);
  --bg-header: rgba(10, 12, 22, 0.85);
  --bg-element: #151926;
  --bg-element-hover: #1e2436;
  --bg-terminal: #07080c;
  
  --border-color: rgba(255, 255, 255, 0.08);
  --border-color-hover: rgba(255, 255, 255, 0.15);
  --border-color-focus: #6366f1;
  
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-alpha: rgba(99, 102, 241, 0.15);
  --secondary: #8b5cf6;
  --secondary-hover: #7c3aed;
  --secondary-alpha: rgba(139, 92, 246, 0.15);
  
  --success: #10b981;
  --success-alpha: rgba(16, 185, 129, 0.15);
  --danger: #f43f5e;
  --danger-hover: #e11d48;
  --danger-alpha: rgba(244, 63, 94, 0.15);
  --warning: #f59e0b;
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
  
  --glass-glow: 0 0 40px rgba(99, 102, 241, 0.03);
  --scrollbar-thumb: #2d334a;
}

/* ☀️ Light Theme Tokens */
.light-theme {
  --bg-app: #f4f6fa;
  --bg-surface: #ffffff;
  --bg-surface-glass: rgba(255, 255, 255, 0.85);
  --bg-header: rgba(248, 250, 252, 0.9);
  --bg-element: #f1f5f9;
  --bg-element-hover: #e2e8f0;
  --bg-terminal: #0f172a;
  
  --border-color: rgba(0, 0, 0, 0.08);
  --border-color-hover: rgba(0, 0, 0, 0.15);
  --border-color-focus: #4f46e5;
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-alpha: rgba(79, 70, 229, 0.1);
  --secondary: #7c3aed;
  --secondary-hover: #6d28d9;
  --secondary-alpha: rgba(124, 92, 237, 0.1);
  
  --success: #10b981;
  --success-alpha: rgba(16, 185, 129, 0.1);
  --danger: #ef4444;
  --danger-hover: #dc2626;
  --danger-alpha: rgba(239, 68, 68, 0.1);
  --warning: #d97706;
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 8px 24px rgba(79, 70, 229, 0.05);
  --shadow-lg: 0 16px 48px rgba(79, 70, 229, 0.1);
  
  --glass-glow: 0 0 40px rgba(79, 70, 229, 0.02);
  --scrollbar-thumb: #cbd5e1;
}

/* ======================================================
   BASE HTML STYLES
   ====================================================== */

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

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

/* Custom Scrollbars */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* Helper styles */
.hidden { display: none !important; }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.required { color: var(--danger); font-weight: bold; }
.icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* ======================================================
   APP HEADER
   ====================================================== */

.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--bg-header);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  padding: 16px 0;
  box-shadow: var(--shadow-sm);
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.header-container {
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-section {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
  animation: logoPulse 3s infinite ease-in-out;
}

.logo-icon svg {
  width: 22px;
  height: 22px;
}

.logo-text h1 {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  background: linear-gradient(90deg, var(--text-primary), var(--text-secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-text p {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Header Navigation Tabs */
.header-nav {
  display: flex;
  background-color: var(--bg-element);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 4px;
  box-shadow: var(--shadow-sm);
}

.nav-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition-fast);
}

.nav-btn .icon {
  width: 16px;
  height: 16px;
}

.nav-btn:hover {
  color: var(--text-primary);
  background-color: var(--bg-element-hover);
}

.nav-btn.active {
  color: white;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25);
}

.badge {
  background-color: rgba(255, 255, 255, 0.2);
  color: white;
  font-size: 0.7rem;
  padding: 1px 6px;
  border-radius: 10px;
  font-weight: 700;
}

/* User Action Area */
.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.action-circle-btn {
  background-color: var(--bg-element);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.action-circle-btn svg {
  width: 20px;
  height: 20px;
}

.action-circle-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-color-hover);
  background-color: var(--bg-element-hover);
  transform: translateY(-2px);
}

.user-avatar {
  background: linear-gradient(135deg, var(--secondary), #ec4899);
  color: white;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.95rem;
  box-shadow: 0 4px 12px rgba(139, 92, 246, 0.25);
  cursor: default;
}

/* ======================================================
   MAIN LAYOUT & PANELS
   ====================================================== */

.main-content {
  flex: 1;
  max-width: 1600px;
  width: 100%;
  margin: 0 auto;
  padding: 32px;
  position: relative;
}

.view-panel {
  display: none;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.view-panel.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

/* Premium Card Layout */
.glass-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-md), var(--glass-glow);
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  opacity: 0.8;
}

.card-header {
  padding: 24px 28px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 16px;
}

.card-title-icon {
  background-color: var(--primary-alpha);
  color: var(--primary);
  width: 44px;
  height: 44px;
  border-radius: var(--border-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-title-icon svg {
  width: 22px;
  height: 22px;
}

.card-header h2 {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.card-header p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 2px;
}

/* ======================================================
   TEST RUNNER SPLIT LAYOUT
   ====================================================== */

.split-layout {
  display: grid;
  grid-template-columns: 55fr 45fr;
  gap: 32px;
  align-items: start;
}

@media (max-width: 1200px) {
  .split-layout {
    grid-template-columns: 1fr;
  }
}

/* Form Styles */
#test-runner-form,
#health-runner-form,
#postlive-runner-form,
#responsive-runner-form {
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
}

label {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.input-with-icon {
  position: relative;
  display: flex;
  align-items: center;
}

.input-icon {
  position: absolute;
  left: 14px;
  color: var(--text-muted);
  pointer-events: none;
  display: flex;
}

.input-icon svg {
  width: 18px;
  height: 18px;
}

input[type="url"],
input[type="text"],
input[type="password"],
select {
  width: 100%;
  background-color: var(--bg-element);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 12px 16px;
  border-radius: var(--border-radius-md);
  outline: none;
  transition: all var(--transition-fast);
}

.input-with-icon input {
  padding-left: 44px;
}

input:hover, select:hover {
  border-color: var(--border-color-hover);
  background-color: var(--bg-element-hover);
}

input:focus, select:focus {
  border-color: var(--border-color-focus);
  background-color: var(--bg-surface);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.helper-text {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* Buttons */
.btn {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 12px 24px;
  border-radius: var(--border-radius-md);
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.8rem;
  border-radius: var(--border-radius-sm);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(99, 102, 241, 0.45);
}

.btn-primary:active {
  transform: translateY(1px);
}

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

.btn-secondary:hover {
  background-color: var(--bg-element-hover);
  color: var(--text-primary);
  border-color: var(--border-color-hover);
}

.btn-outline-primary {
  background: none;
  border: 1px solid var(--primary);
  color: var(--primary);
}

.btn-outline-primary:hover {
  background-color: var(--primary-alpha);
  color: var(--primary-hover);
}

.btn-danger {
  background-color: var(--danger-alpha);
  color: var(--danger);
  border: 1px solid rgba(244, 63, 94, 0.2);
}

.btn-danger:hover {
  background-color: var(--danger);
  color: white;
  border-color: var(--danger);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* Paths Table Styling */
.table-container {
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  background-color: var(--bg-surface);
}

.paths-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.paths-table th,
.paths-table td {
  padding: 12px 16px;
  font-size: 0.85rem;
}

.paths-table th {
  background-color: var(--bg-element);
  color: var(--text-secondary);
  font-weight: 600;
  border-bottom: 1px solid var(--border-color);
}

.paths-table tbody tr {
  border-bottom: 1px solid var(--border-color);
}

.paths-table tbody tr:last-child {
  border-bottom: none;
}

.paths-table input {
  padding: 8px 12px;
  font-size: 0.85rem;
  border-radius: var(--border-radius-sm);
}

.icon-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.icon-input-wrapper .inline-icon {
  position: absolute;
  left: 10px;
  color: var(--text-muted);
  width: 14px;
  height: 14px;
  pointer-events: none;
}

.icon-input-wrapper input {
  padding-left: 32px;
}

/* Advanced Options details styling */
.advanced-options-details {
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  background-color: rgba(99, 102, 241, 0.02);
  transition: all var(--transition-fast);
}

.advanced-options-details[open] {
  background-color: rgba(99, 102, 241, 0.04);
}

.advanced-summary {
  list-style: none; /* Hide default marker */
  padding: 14px 20px;
  font-weight: 600;
  font-size: 0.875rem;
  cursor: pointer;
  user-select: none;
  display: flex;
  align-items: center;
  gap: 8px;
  outline: none;
}

.advanced-summary::-webkit-details-marker {
  display: none; /* Hide default triangle */
}

.advanced-summary::after {
  content: '▼';
  font-size: 0.65rem;
  margin-left: auto;
  color: var(--text-muted);
  transition: transform var(--transition-fast);
}

.advanced-options-details[open] .advanced-summary::after {
  transform: rotate(180deg);
}

.advanced-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding: 0 20px 20px 20px;
  border-top: 1px dashed var(--border-color);
  padding-top: 16px;
}

@media (max-width: 768px) {
  .advanced-grid {
    grid-template-columns: 1fr;
  }
}

.card-footer-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  border-top: 1px solid var(--border-color);
  padding-top: 24px;
}

/* ======================================================
   LIVE LOGS TERMINAL
   ====================================================== */

.terminal-card {
  display: flex;
  flex-direction: column;
  overflow: hidden; /* Prevent child container expansion */
}

.terminal-card::before {
  background: linear-gradient(90deg, var(--secondary), #ec4899);
}

.terminal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: var(--bg-element);
  padding: 14px 24px;
  border-bottom: 1px solid var(--border-color);
}

.terminal-title {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.85rem;
}

.terminal-dots {
  display: flex;
  gap: 6px;
}

.terminal-dots .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.terminal-dots .dot.red { background-color: #ef4444; }
.terminal-dots .dot.yellow { background-color: #f59e0b; }
.terminal-dots .dot.green { background-color: #10b981; }

.terminal-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.action-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  display: flex;
  border-radius: 4px;
  transition: all var(--transition-fast);
}

.action-btn svg {
  width: 16px;
  height: 16px;
}

.action-btn:hover {
  color: var(--text-primary);
  background-color: var(--bg-element-hover);
}

/* Status Indicator Pulse animation */
.status-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 12px;
}

.status-indicator .pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}

.status-indicator.idle {
  background-color: var(--bg-element-hover);
  color: var(--text-secondary);
}
.status-indicator.idle .pulse-dot { background-color: var(--text-muted); }

.status-indicator.running {
  background-color: rgba(99, 102, 241, 0.15);
  color: #818cf8;
}
.status-indicator.running .pulse-dot {
  background-color: var(--primary);
  animation: logPulse 1.5s infinite ease-in-out;
}

.status-indicator.success {
  background-color: var(--success-alpha);
  color: var(--success);
}
.status-indicator.success .pulse-dot { background-color: var(--success); }

.status-indicator.failed {
  background-color: var(--danger-alpha);
  color: var(--danger);
}
.status-indicator.failed .pulse-dot { background-color: var(--danger); }

.terminal-body {
  background-color: var(--bg-terminal);
  height: 500px; /* Force scrollable fixed height */
  padding: 24px;
  overflow-y: auto;
  position: relative;
}

#console-output {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: #34d399; /* Green text by default */
  white-space: pre-wrap;
  word-break: break-all;
  line-height: 1.6;
}

/* ======================================================
   SCREENSHOT GALLERY VIEW
   ====================================================== */

.gallery-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 32px;
  align-items: start;
}

@media (max-width: 1024px) {
  .gallery-layout {
    grid-template-columns: 1fr;
  }
}

/* Sidebar History Card */
.sidebar-card {
  min-height: 600px;
  display: flex;
  flex-direction: column;
}

.sidebar-card::before {
  background: linear-gradient(90deg, var(--secondary), var(--primary));
}

.sidebar-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sidebar-header h3 {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.refresh-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  transition: all var(--transition-fast);
  display: flex;
}

.refresh-btn svg {
  width: 16px;
  height: 16px;
}

.refresh-btn:hover {
  color: var(--text-primary);
  background-color: var(--bg-element-hover);
  transform: rotate(180deg);
}

.sidebar-list {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.list-empty {
  color: var(--text-muted);
  font-size: 0.8rem;
  text-align: center;
  padding: 32px 16px;
}

.run-item-btn {
  width: 100%;
  background: none;
  border: 1px solid transparent;
  text-align: left;
  padding: 12px 16px;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: all var(--transition-fast);
}

.run-item-btn:hover {
  background-color: var(--bg-element);
}

.run-item-btn.active {
  background-color: var(--primary-alpha);
  border-color: rgba(99, 102, 241, 0.2);
}

.run-item-name {
  font-family: var(--font-sans);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.85rem;
  word-break: break-all;
}

.run-item-btn.active .run-item-name {
  color: var(--primary);
}

.run-item-time {
  font-family: var(--font-sans);
  color: var(--text-muted);
  font-size: 0.72rem;
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Gallery Content Area */
.gallery-content {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.gallery-header-card {
  padding: 24px 28px;
}

.gallery-header-card::before {
  background: linear-gradient(90deg, #ec4899, var(--secondary));
}

.run-header-details {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.run-badge {
  background-color: var(--primary-alpha);
  color: var(--primary);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 6px;
  display: inline-block;
  margin-bottom: 6px;
}

#active-run-title {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

#active-run-meta {
  font-size: 0.8rem;
  margin-top: 4px;
}

.run-stats-grid {
  display: flex;
  gap: 16px;
}

.stat-box {
  background-color: var(--bg-element);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: 10px 18px;
  text-align: center;
  min-width: 90px;
}

.stat-box .label {
  font-size: 0.68rem;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 700;
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: 2px;
}

.stat-box .value {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-primary);
}

/* Empty states */
.gallery-empty-state {
  text-align: center;
  padding: 80px 40px;
  background-color: var(--bg-surface);
  border: 1px dashed var(--border-color);
  border-radius: var(--border-radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  max-width: 600px;
  margin: 40px auto;
}

.empty-icon {
  background-color: var(--bg-element);
  color: var(--text-muted);
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.empty-icon svg {
  width: 32px;
  height: 32px;
}

.gallery-empty-state h3 {
  font-size: 1.05rem;
  font-weight: 700;
}

.gallery-empty-state p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Screenshot Groups rendering */
.form-group-section {
  display: flex;
  flex-direction: column;
  gap: 16px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 32px;
  margin-bottom: 16px;
}

.form-group-section:last-child {
  border-bottom: none;
  padding-bottom: 0;
  margin-bottom: 0;
}

.form-group-title {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-primary);
}

.form-group-title svg {
  width: 18px;
  height: 18px;
  color: var(--secondary);
}

.scenario-section {
  background-color: var(--bg-surface-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.scenario-title {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 700;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.scenario-title .tag-scenario {
  background-color: var(--primary-alpha);
  color: var(--primary);
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 4px;
}

/* Image Grid */
.screenshots-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.screenshot-card {
  background-color: var(--bg-element);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-fast);
}

.screenshot-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-color-hover);
  box-shadow: var(--shadow-sm);
}

.screenshot-thumb-container {
  height: 180px;
  overflow: hidden;
  background-color: var(--bg-terminal);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.screenshot-thumb-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform var(--transition-slow) ease;
}

.screenshot-card:hover .screenshot-thumb-container img {
  transform: scale(1.05);
}

.screenshot-hover-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(79, 70, 229, 0.4);
  opacity: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  transition: opacity var(--transition-fast);
}

.screenshot-hover-overlay svg {
  width: 24px;
  height: 24px;
  transform: scale(0.8);
  transition: transform var(--transition-fast);
}

.screenshot-card:hover .screenshot-hover-overlay {
  opacity: 1;
}

.screenshot-card:hover .screenshot-hover-overlay svg {
  transform: scale(1);
}

.screenshot-info {
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-top: 1px solid var(--border-color);
}

.screenshot-name {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.screenshot-case {
  font-size: 0.72rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ======================================================
   LIGHTBOX MODAL FOR SCREENSHOT
   ====================================================== */

.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(7, 8, 14, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 40px;
}

.lightbox.active {
  display: flex;
  animation: fadeIn var(--transition-fast);
}

.lightbox-close {
  position: absolute;
  top: 24px;
  right: 32px;
  background: none;
  border: none;
  color: white;
  font-size: 2.5rem;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.lightbox-close:hover {
  color: var(--danger);
}

.lightbox-content {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  max-width: 90%;
  max-height: 90vh;
  width: 1100px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  animation: scaleIn var(--transition-normal);
}

.lightbox-image-container {
  flex: 1;
  overflow-y: auto;
  background-color: var(--bg-terminal);
  max-height: 70vh;
  display: flex;
  justify-content: center;
  align-items: flex-start;
}

.lightbox-image-container img {
  max-width: 100%;
  height: auto;
  display: block;
}

.lightbox-meta {
  background-color: var(--bg-element);
  padding: 20px 28px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.lightbox-meta h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}

.lightbox-meta p {
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

.lightbox-dl-btn {
  flex-shrink: 0;
}

/* ======================================================
   KEYFRAME ANIMATIONS
   ====================================================== */

@keyframes logoPulse {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
  }
  50% {
    transform: scale(1.03);
    box-shadow: 0 6px 18px rgba(99, 102, 241, 0.5);
  }
}

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

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.97) translateY(8px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}