/* =========================================================
   Android Layout Previewer - Version 2.1
   - App shell uses dark surface theme
   - Preview device screen stays light (like Android canvas)
   - Material-like tokens for accents and error
   ========================================================= */

:root {
  /* Material-inspired color roles (site accents) */
  --md-primary: #6200ee;
  --md-primary-variant: #3700b3;
  --md-secondary: #03dac6;
  --md-secondary-variant: #018786;
  --md-error: #b00020;

  --md-on-primary: #ffffff;
  --md-on-secondary: #000000;
  --md-on-error: #ffffff;

  /* App shell */
  --bg: #0f111a;
  --panel: rgba(255,255,255,0.04);
  --panel2: rgba(255,255,255,0.03);
  --outline: rgba(255,255,255,0.14);
  --text: #e9ecf1;
  --muted: #aab3c5;
  --shadow: 0 12px 32px rgba(0,0,0,0.35);

  /* Device screen default size */
  --device-w: 360px;
  --device-h: 640px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Roboto', Arial, sans-serif;
  color: var(--text);
  background: radial-gradient(1200px 800px at 20% 0%, #1a2250 0%, var(--bg) 55%);
}

/* ================= Header ================= */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--outline);
  background: linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.0));
}

.header-left h1 {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
}

.subtitle {
  margin: 4px 0 0 0;
  color: var(--muted);
  font-size: 13px;
}

.header-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

button {
  font-family: 'Roboto', Arial, sans-serif;
  border: none;
  border-radius: 10px;
  padding: 10px 14px;
  cursor: pointer;
  transition: transform 0.06s ease, background 0.2s ease, filter 0.2s ease;
}

button:active { transform: scale(0.98); }

button.primary {
  background: var(--md-primary);
  color: var(--md-on-primary);
  font-weight: 700;
}
button.primary:hover { background: var(--md-primary-variant); }

button.ghost {
  background: rgba(255,255,255,0.08);
  color: var(--text);
  border: 1px solid rgba(255,255,255,0.10);
}
button.ghost:hover { background: rgba(255,255,255,0.12); }

.small-btn {
  padding: 8px 10px;
  border-radius: 10px;
  font-size: 12px;
}

/* Device controls */
.device-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-left: 10px;
  border-left: 1px solid var(--outline);
  margin-left: 6px;
}

.device-label {
  font-size: 12px;
  color: var(--muted);
}

.device-select {
  background: rgba(255,255,255,0.08);
  color: var(--text);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 10px;
  padding: 8px 10px;
  outline: none;
}

/* ================= Workspace ================= */
.workspace {
  display: grid;
  grid-template-columns: 260px 1fr 1fr;
  gap: 14px;
  padding: 14px;
  height: calc(100vh - 78px);
}

.palette, .editor, .preview {
  background: var(--panel);
  border: 1px solid var(--outline);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.panel-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-bottom: 1px solid var(--outline);
  background: var(--panel2);
}

.panel-title h2 {
  margin: 0;
  font-size: 14px;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  color: var(--muted);
}

.panel-badges {
  display: flex;
  gap: 8px;
}

.badge {
  font-size: 11px;
  padding: 4px 8px;
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
  color: var(--text);
}

/* ================= Palette ================= */
.palette {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden; /* keeps internal scroll clean*/
}

.palette-header {
  padding: 14px;
  flex: 0 0 auto; 
}

.palette-header h2 {
  margin: 0 0 6px 0;
  font-size: 16px;
}

/* Make palette content scrollable while keeping header visible */
.palette-section {
  overflow-y: auto; 
  flex: 0 0 auto;
}

/* Allow the sections container to grow and scroll */
.palette {
  overflow-y: auto;
}

.palette-hint {
  margin: 0;
  font-size: 12px;
  color: var(--muted);
}

.palette-section {
  padding: 10px 14px 14px 14px;
  border-top: 1px solid var(--outline);
}

.palette-section h3 {
  margin: 0 0 10px 0;
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.palette-list {
  display: grid;
  gap: 8px;
}

.palette-item {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.10);
  color: var(--text);
  padding: 10px 10px;
  border-radius: 12px;
  font-size: 13px;
  cursor: pointer;
}
.palette-item:hover {
  background: rgba(255,255,255,0.12);
}

/* ================= Editor ================= */
.editor {
  display: flex;
  flex-direction: column;
}

#xmlCode { display: none; } /* replaced by CodeMirror */

.CodeMirror {
  height: 100%;
  font-family: 'Fira Mono', monospace;
  font-size: 13px;
}

.editor-footer {
  border-top: 1px solid var(--outline);
  padding: 10px 12px;
  color: var(--muted);
  font-size: 12px;
  background: var(--panel2);
}

.editor-footer code {
  background: rgba(0,0,0,0.25);
  padding: 2px 6px;
  border-radius: 6px;
}

/* ================= Preview ================= */
.preview {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.device-frame {
  margin: 14px;
  width: calc(var(--device-w) + 28px);
  height: calc(var(--device-h) + 42px);
  border-radius: 22px;
  border: 1px solid rgba(255,255,255,0.14);
  background: linear-gradient(180deg, rgba(255,255,255,0.10), rgba(255,255,255,0.02));
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow);
}

.device-notch {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 18px;
  border-radius: 999px;
  background: rgba(0,0,0,0.35);
  z-index: 2;
}

.device-screen {
  position: absolute;
  left: 14px;
  top: 28px;
  width: var(--device-w);
  height: var(--device-h);
  padding: 14px;
  background: #f5f5f5;
  overflow: auto;
  color: #111;
  border-radius: 16px;
}

.preview-footer {
  width: 100%;
  border-top: 1px solid var(--outline);
  padding: 10px 12px;
  color: var(--muted);
  font-size: 12px;
  background: var(--panel2);
}

.small { font-size: 12px; color: var(--muted); }

/* Warning block shown below the layout */
.warning-block {
  margin-top: 12px;
  padding: 10px;
  border-radius: 12px;
  border: 1px solid #e2e2e2;
  background: #ffffff;
  color: #222;
}

.warning-block strong {
  display: block;
  margin-bottom: 6px;
}

.warning-block ul {
  margin: 0 0 0 18px;
  padding: 0;
}

/* Error message block (stops rendering) */
.error-message {
  color: var(--md-on-error);
  background-color: var(--md-error);
  padding: 10px;
  border-radius: 12px;
  border-left: 6px solid #ff5c7a;
  margin-bottom: 10px;
}

/* =========================================================
   Android-like preview styles (Phase 1)
   ========================================================= */
.android-element {
  box-sizing: border-box;
  position: relative;
  font-family: 'Roboto', sans-serif;
}

/* LinearLayout */
.linear-layout {
  display: flex;
  min-height: 40px;
  min-width: 80px;
  background-color: transparent;
  padding: 8px;
  border: 1px dashed #aaa;
}
.linear-layout.vertical { flex-direction: column; }
.linear-layout.horizontal { flex-direction: row; }

.relative-layout, .frame-layout, .constraint-layout {
  position: relative;
  min-height: 80px;
  min-width: 80px;
  background-color: transparent;
  padding: 8px;
  border: 1px dashed #aaa;
}

/* RadioGroup */
.radio-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 8px;
  border: 1px dashed #aaa;
  border-radius: 12px;
}

/* TextView */
.text-view {
  font-size: 16px;
  color: #212121;
  padding: 4px;
  min-height: 20px;
  background-color: transparent;
  word-wrap: break-word;
}

/* Button */
.button {
  font-size: 14px;
  color: var(--md-on-primary);
  background-color: var(--md-primary);
  padding: 8px 16px;
  border: none;
  border-radius: 12px;
  margin: 4px;
  text-align: center;
  cursor: default;
  box-shadow: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
}

/* EditText (also used for Spinner select) */
.edit-text {
  font-size: 16px;
  color: #212121;
  background-color: #FFFFFF;
  padding: 10px;
  border: 1px solid #BDBDBD;
  border-radius: 12px;
  margin: 4px;
  min-width: 120px;
}

/* ImageView */
.image-view {
  background-color: #EEEEEE;
  min-width: 48px;
  min-height: 48px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #BDBDBD;
  border-radius: 12px;
}
.image-placeholder {
  color: #757575;
  font-size: 12px;
  text-align: center;
}

/* CheckBox / RadioButton */
.checkbox-container, .radio-container {
  display: flex;
  align-items: center;
  font-size: 16px;
  color: #212121;
  padding: 4px;
}
.checkbox-container input, .radio-container input {
  margin-right: 8px;
}

/* Switch */
.switch-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 16px;
  color: #212121;
  padding: 4px;
  min-width: 160px;
}

.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 26px;
}
.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}
.slider {
  position: absolute;
  cursor: default;
  inset: 0;
  background-color: #ccc;
  transition: .4s;
  border-radius: 24px;
}
.slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 4px;
  bottom: 4px;
  background-color: white;
  transition: .4s;
  border-radius: 50%;
}
.switch input:checked + .slider {
  background-color: var(--md-primary);
}
.switch input:checked + .slider:before {
  transform: translateX(18px);
}

/* Progress */
.progress-container { padding: 8px; }
.horizontal-progress { width: 100%; height: 10px; }

.circular-progress {
  width: 40px;
  height: 40px;
  border: 4px solid #f3f3f3;
  border-top: 4px solid var(--md-primary);
  border-radius: 50%;
  animation: spin 2s linear infinite;
}
@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Unknown element */
.unknown-element {
  background-color: #FFE0B2;
  padding: 10px;
  border: 1px dashed #FF9800;
  color: #E65100;
  font-weight: bold;
  border-radius: 12px;
}

/* Responsive layout */
@media (max-width: 1100px) {
  .workspace {
    grid-template-columns: 260px 1fr;
    grid-template-rows: 1fr 1fr;
    height: auto;
  }
  .preview { grid-column: 1 / span 2; }
}

@media (max-width: 800px) {
  .workspace {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
    height: auto;
  }
}
``
/* ================= Resource Management Styles ================= */

/* Resource buttons */
.resource-btn {
  font-size: 13px;
  padding: 8px 12px;
}

/* Modal Styles */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  animation: fadeIn 0.2s ease;
}

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

.modal.show {
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-content {
  background: var(--bg);
  border: 1px solid var(--outline);
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  width: 90%;
  max-width: 600px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  animation: slideUp 0.3s ease;
}

@keyframes slideUp {
  from {
    transform: translateY(30px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--outline);
  background: var(--panel2);
  border-radius: 16px 16px 0 0;
}

.modal-header h2 {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
}

.modal-close {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text);
  font-size: 28px;
  line-height: 1;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  cursor: pointer;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease;
}

.modal-close:hover {
  background: rgba(255, 255, 255, 0.14);
}

.modal-body {
  padding: 24px;
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--outline);
  background: var(--panel2);
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  border-radius: 0 0 16px 16px;
}

/* Resource Management Sections */
.resource-info {
  background: rgba(98, 0, 238, 0.1);
  border: 1px solid rgba(98, 0, 238, 0.3);
  border-radius: 12px;
  padding: 12px 16px;
  margin-bottom: 20px;
}

.resource-info p {
  margin: 0;
  font-size: 13px;
  color: var(--text);
}

.resource-info code {
  background: rgba(0, 0, 0, 0.3);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: 'Fira Mono', monospace;
  font-size: 12px;
  color: var(--md-secondary);
}

.resource-add-section {
  background: var(--panel);
  border: 1px solid var(--outline);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 20px;
}

.resource-add-section h3 {
  margin: 0 0 16px 0;
  font-size: 14px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.input-group {
  margin-bottom: 14px;
}

.input-group label {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  color: var(--muted);
  font-weight: 500;
}

.input-group input[type="text"] {
  width: 100%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--text);
  font-family: 'Fira Mono', monospace;
  font-size: 14px;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.input-group input[type="text"]:focus {
  outline: none;
  border-color: var(--md-primary);
  background: rgba(255, 255, 255, 0.08);
}

.color-input-wrapper {
  display: flex;
  gap: 10px;
  align-items: center;
}

.color-input-wrapper input[type="color"] {
  width: 60px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.05);
}

.color-input-wrapper input[type="text"] {
  flex: 1;
}

.resource-list-section {
  margin-top: 20px;
}

.resource-list-section h3 {
  margin: 0 0 12px 0;
  font-size: 14px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.resource-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 250px;
  overflow-y: auto;
  padding: 4px;
}

.resource-item {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  padding: 12px 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.2s ease;
}

.resource-item:hover {
  background: rgba(255, 255, 255, 0.09);
}

.resource-item-info {
  flex: 1;
  min-width: 0;
}

.resource-item-name {
  font-family: 'Fira Mono', monospace;
  font-size: 13px;
  color: var(--md-secondary);
  margin-bottom: 4px;
  font-weight: 600;
}

.resource-item-value {
  font-family: 'Fira Mono', monospace;
  font-size: 12px;
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.color-preview {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  margin-right: 10px;
  flex-shrink: 0;
}

.resource-item-actions {
  display: flex;
  gap: 6px;
  margin-left: 10px;
}

.icon-btn {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text);
  width: 32px;
  height: 32px;
  border-radius: 8px;
  cursor: pointer;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: background 0.2s ease;
}

.icon-btn:hover {
  background: rgba(255, 255, 255, 0.14);
}

.icon-btn.delete {
  color: #ff5c7a;
}

.icon-btn.delete:hover {
  background: rgba(255, 92, 122, 0.2);
}

.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--muted);
  font-size: 14px;
}