/* ========================================
   VAST Companion Ad Playground - Styles
   ======================================== */

:root {
  /* Color Palette - Light Theme (Blue/White) */
  --bg-primary: #ffffff;
  --bg-secondary: #f6f8fa;
  --bg-tertiary: #eaeef2;
  --bg-input: #ffffff;
  --bg-hover: #e1e4e8;
  
  --text-primary: #24292f;
  --text-secondary: #57606a;
  --text-muted: #8c959f;
  
  --accent-primary: #0969da;
  --accent-success: #1a7f37;
  --accent-warning: #9a6700;
  --accent-error: #cf222e;
  --accent-purple: #8250df;
  
  --border-color: #d0d7de;
  --border-focus: #0969da;
  
  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  
  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  
  /* Fonts */
  --font-mono: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif;
}

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

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
}

/* ========================================
   Layout
   ======================================== */

.playground-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.playground-header {
  background: var(--bg-secondary);
  padding: var(--spacing-md) var(--spacing-lg);
  border-bottom: 1px solid var(--border-color);
}

.playground-header h1 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
  color: var(--text-primary);
}

.playground-header .subtitle {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.playground-main {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* ========================================
   Config Panel (Left)
   ======================================== */

.config-panel {
  width: 400px;
  min-width: 360px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.config-section {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
}

.config-section h2 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group:last-child {
  margin-bottom: 0;
}

.form-group label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
}

/* Form Controls */
input[type="text"],
input[type="url"],
input[type="number"],
select,
textarea {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.875rem;
  font-family: inherit;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(9, 105, 218, 0.15);
}

textarea {
  min-height: 200px;
  resize: vertical;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.6;
}

select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2357606a' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

/* Size Inputs */
.size-inputs {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.size-inputs input {
  flex: 1;
  text-align: center;
}

.size-inputs span {
  color: var(--text-muted);
}

/* Macros List */
#macros-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.macro-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.macro-item label {
  min-width: 140px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-primary); /* Changed from purple to primary blue */
  margin-bottom: 0;
}

.macro-item input {
  flex: 1;
}

/* ========================================
   Action Buttons
   ======================================== */

.action-buttons {
  padding: var(--spacing-md);
  display: flex;
  gap: var(--spacing-sm);
  border-top: 1px solid var(--border-color);
  margin-top: auto;
  background: var(--bg-secondary);
}

.btn {
  padding: var(--spacing-sm) var(--spacing-md);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
}

.btn-primary {
  flex: 1;
  background: var(--accent-primary);
  color: white;
}

.btn-primary:hover {
  background: #085dc0; /* Darker blue */
  transform: translateY(-1px);
}

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

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

.btn-small {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: 0.75rem;
}

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

.btn-outline:hover {
  background: var(--bg-hover);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

/* ========================================
   Template Load Options
   ======================================== */

.template-load-options {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.url-load-group {
  display: flex;
  gap: var(--spacing-xs);
}

.url-load-group input {
  flex: 1;
  min-width: 0;
}

.url-load-group .btn {
  flex-shrink: 0;
}

/* ========================================
   Preview Panel (Right)
   ======================================== */

.preview-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--bg-primary);
  overflow: hidden;
}

/* Tabs */
.preview-tabs {
  display: flex;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  padding: 0 var(--spacing-md);
}

.tab-btn {
  padding: var(--spacing-md) var(--spacing-lg);
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  position: relative;
  transition: color var(--transition-fast);
}

.tab-btn:hover {
  color: var(--text-primary);
}

.tab-btn.active {
  color: var(--accent-primary);
}

.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent-primary);
}

/* Tab Content */
.tab-content {
  display: none;
  overflow: auto;
}

.tab-content.active {
  display: flex;
  flex-direction: column;
}

/* Preview Layout */
.preview-frame-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: var(--spacing-lg);
  /* Light gray checkerboard */
  background: repeating-conic-gradient(var(--bg-secondary) 0% 25%, var(--bg-primary) 0% 50%) 50% / 20px 20px;
  overflow: auto;
}

.preview-layout {
  display: flex;
  gap: var(--spacing-xl);
  align-items: flex-start;
  justify-content: center;
  flex-wrap: wrap;
  width: 100%;
}

/* Video Player Section */
.video-player-wrapper {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.video-player-wrapper h3,
.companion-slot-wrapper h3 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-align: center;
  cursor: grab; /* Indicates draggable */
  user-select: none;
  padding: var(--spacing-xs) 0;
  transition: color 0.2s;
}

.video-player-wrapper h3:hover,
.companion-slot-wrapper h3:hover {
  color: var(--accent-primary);
}

.video-player-wrapper h3:active,
.companion-slot-wrapper h3:active {
  cursor: grabbing;
}

#video-container {
  position: relative;
  width: 640px;
  height: 360px;
  background: #000;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15); /* Softer shadow */
}

#content-video {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

#ad-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* Companion Slot Section */
.companion-slot-wrapper {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  align-items: center;
}

#companion-slot-container {
  /* Keep checkerboard for transparency check */
  background: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAH0lEQVQ4T2NkYGA4A8WgA4yD4gEMg8bB4Q8Gw+BgAAA9xwMl4kZ7hQAAAABJRU5ErkJggg==') repeat;
  padding: 0; /* Remove padding */
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background-color: #fff; /* Default white bg behind checkerboard */
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative; /* Ensure handles can go outside if needed, or keep inside */
  overflow: hidden; /* If we want to clip handles that go outside, or visible? */
  /* Actually, if we remove padding, handles might be cut off if overflow is hidden. 
     Let's set overflow to visible and rely on flex centering. */
  overflow: visible; 
}

#companion-resizable-wrapper {
  position: relative;
  /* Dimensions set by JS */
  box-shadow: 0 0 0 1px rgba(0,0,0,0.05);
  background: transparent;
}

#companion-slot {
  width: 100%;
  height: 100%;
  background: transparent;
  position: relative;
  overflow: hidden;
}

/* Resize Handles */
.resize-handle {
  position: absolute;
  background: var(--accent-primary);
  opacity: 0;
  transition: opacity 0.2s;
  z-index: 100;
}

#companion-resizable-wrapper:hover .resize-handle,
.resize-handle.dragging {
  opacity: 0.5;
}

.resize-handle.handle-e {
  top: 0;
  right: -6px;
  width: 12px;
  height: 100%;
  cursor: col-resize;
  background: transparent; /* Invisible hit area */
}
.resize-handle.handle-e::after {
  content: '';
  position: absolute;
  top: 0; right: 5px; width: 2px; height: 100%;
  background: var(--accent-primary);
}

.resize-handle.handle-s {
  bottom: -6px;
  left: 0;
  width: 100%;
  height: 12px;
  cursor: row-resize;
  background: transparent;
}
.resize-handle.handle-s::after {
  content: '';
  position: absolute;
  bottom: 5px; left: 0; width: 100%; height: 2px;
  background: var(--accent-primary);
}

.resize-handle.handle-se {
  bottom: -6px;
  right: -6px;
  width: 16px;
  height: 16px;
  cursor: nwse-resize;
  background: var(--accent-primary);
  border-radius: 0 0 4px 0;
  opacity: 0 !important; /* Hide default square, use pseudoelement if needed, but let's just use the square */
}
#companion-resizable-wrapper:hover .resize-handle.handle-se,
.resize-handle.handle-se.dragging {
  opacity: 1 !important;
}

/* Resize Indicator */
.resize-indicator {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(36, 41, 47, 0.8);
  color: white;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-family: var(--font-mono);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s;
  z-index: 101;
  white-space: nowrap;
}

#companion-resizable-wrapper.resizing .resize-indicator {
  opacity: 1;
}

.companion-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.875rem;
  border: 2px dashed var(--border-color);
  margin: var(--spacing-sm);
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.8);
}

.preview-controls {
  padding: var(--spacing-sm) var(--spacing-md);
  /* background: var(--bg-primary); */
  /* border-top: 1px solid var(--border-color); */
  text-align: center;
}

#preview-size-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* ========================================
   VAST XML Panel
   ======================================== */

.vast-xml-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  margin: var(--spacing-md);
  background: var(--bg-primary);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  overflow: hidden;
  height: fit-content;
  position: sticky;
  top: 12px;
}

.vast-xml-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  font-size: 0.8125rem;
  color: var(--text-secondary);
}
.vast-xml-content-container {
  height: 100%;
  max-height: calc(100vh - 260px);
  overflow-y: auto;
}
#vast-xml-content {
  flex: 1;
  margin: 0;
  padding: var(--spacing-md);
  overflow: auto;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.6;
  color: var(--text-primary);
  white-space: pre-wrap;
  word-break: break-all;
  background: var(--bg-primary);
  height: fit-content;
}

#vast-xml-content code {
  color: inherit;
}

/* XML Syntax Highlighting - Adjusted for Light Theme */
.xml-tag { color: #0550ae; font-weight: 600; } /* Dark Blue */
.xml-attr { color: #953800; } /* Brown/Orange */
.xml-value { color: #0a3069; } /* Navy */
.xml-comment { color: #6e7781; font-style: italic; }

/* ========================================
   Status Bar
   ======================================== */

.status-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.ima-status {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.ima-status::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-warning);
}

.ima-status.loaded::before {
  background: var(--accent-success);
}

.ima-status.error::before {
  background: var(--accent-error);
}

/* ========================================
   Toast Notification
   ======================================== */

.toast {
  position: fixed;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  padding: var(--spacing-sm) var(--spacing-lg);
  background: #ffffff;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  z-index: 1000;
}

.toast.show {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

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

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

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

/* ========================================
   Advanced Config
   ======================================== */

.config-details {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-tertiary);
  overflow: hidden;
}

.config-details summary {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  transition: background 0.2s;
}

.config-details summary:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.config-details[open] summary {
  border-bottom: 1px solid var(--border-color);
}

.config-details-content {
  padding: var(--spacing-md);
  background: var(--bg-primary);
}

/* Radio Group */
.radio-group {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-xs) 0;
}

.radio-label {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 0.875rem;
  cursor: pointer;
  color: var(--text-primary);
}

.radio-label input[type="radio"] {
  width: auto;
  margin: 0;
  cursor: pointer;
}

/* ========================================
   Responsive
   ======================================== */

@media (max-width: 1024px) {
  .playground-main {
    flex-direction: column;
  }
  
  .config-panel {
    width: 100%;
    min-width: auto;
    max-height: 50vh;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }
  
  .preview-panel {
    min-height: 50vh;
    position: relative;
  }
}