/* Core CSS Variables and Design System (V2.1) */
:root {
  --primary-color: #f3e9e9;
  --primary-glow: rgba(243, 233, 233, 0.3);
  --secondary-color: #7f00ff;
  --secondary-glow: rgba(127, 0, 255, 0.4);
  --accent-color: #dd715a;
  --success-color: #00ff66;
  --danger-color: #ff3366;
  
  --bg-dark-base: #21252d;
  --bg-dark-app: #262a33;
  --bg-card: rgba(38, 42, 51, 0.65);
  --bg-card-hover: rgba(48, 53, 64, 0.8);
  --bg-input: rgba(33, 37, 45, 0.85);
  
  --text-main: #f3e9e9;
  --text-muted: #8a94b3;
  --text-inverse: #21252d;
  
  --border-color: rgba(255, 255, 255, 0.08);
  --border-color-active: #dd715a;
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.6);
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.3);
  
  --glass-blur: blur(16px);
  --border-radius-lg: 16px;
  --border-radius-md: 10px;
  --border-radius-sm: 6px;
  
  --font-arabic: 'Segoe UI', Tahoma, Arial, sans-serif;
  --font-english: 'Segoe UI', Tahoma, Arial, sans-serif;
}

/* Reset and Global Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

.material-symbols-outlined {
  font-family: 'Material Symbols Outlined' !important;
  font-weight: normal;
  font-style: normal;
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  display: inline-block;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-arabic);
  background-color: var(--bg-dark-base);
  color: var(--text-main);
  overflow: hidden;
  height: 100vh;
  width: 100vw;
  user-select: none;
  -webkit-font-smoothing: antialiased;
}

/* Scrollbar styling */
.scrollbar::-webkit-scrollbar,
.properties-wrapper::-webkit-scrollbar,
.layers-list-wrapper::-webkit-scrollbar {
  width: 6px;
}
.scrollbar::-webkit-scrollbar-track,
.properties-wrapper::-webkit-scrollbar-track,
.layers-list-wrapper::-webkit-scrollbar-track {
  background: transparent;
}
.scrollbar::-webkit-scrollbar-thumb,
.properties-wrapper::-webkit-scrollbar-thumb,
.layers-list-wrapper::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
}
.scrollbar::-webkit-scrollbar-thumb:hover,
.properties-wrapper::-webkit-scrollbar-thumb:hover,
.layers-list-wrapper::-webkit-scrollbar-thumb:hover {
  background: var(--primary-color);
}

/* Ambient Background Glow */
.glow-bg {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  filter: blur(120px);
  opacity: 0.15;
  transition: all 1s ease;
}

.bg-glow-1 {
  background: var(--primary-color);
  top: -100px;
  right: -100px;
}

.bg-glow-2 {
  background: var(--secondary-color);
  bottom: -100px;
  left: -100px;
}

/* App Layout Container */
.app-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  width: 100vw;
  z-index: 1;
  position: relative;
}

/* Header */
.app-header {
  height: 75px;
  background: rgba(16, 18, 26, 0.85);
  backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px;
  z-index: 10;
}

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

.logo-icon {
  font-size: 28px;
  color: var(--primary-color);
  text-shadow: 0 0 10px var(--primary-glow);
  animation: rotate-logo 10s infinite linear;
}

.logo-image {
  height: 36px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 0 8px var(--primary-glow));
}

@keyframes rotate-logo {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.logo-text h1 {
  font-family: var(--font-english);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.5px;
  background: linear-gradient(45deg, var(--primary-color), #bc34fa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.1;
  display: flex;
  align-items: center;
  gap: 6px;
}

.v-badge {
  font-size: 10px;
  background: rgba(0, 240, 255, 0.15);
  border: 1px solid var(--primary-color);
  color: var(--primary-color);
  padding: 2px 6px;
  border-radius: 12px;
  font-weight: 700;
  text-shadow: none;
  -webkit-text-fill-color: var(--primary-color);
}

.logo-text span {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 600;
  display: block;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

.control-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.control-group.border-right {
  border-left: 1px solid var(--border-color);
  padding-left: 12px;
}

.control-group label {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 4px;
}

.preset-dropdown {
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  font-family: var(--font-arabic);
  font-size: 11px;
  padding: 6px 10px;
  border-radius: var(--border-radius-sm);
  outline: none;
  cursor: pointer;
  min-width: 150px;
  transition: all 0.3s ease;
}

.preset-dropdown:hover, .preset-dropdown:focus {
  border-color: var(--primary-color);
}

/* Custom Mini Forms for presets */
.input-text-mini {
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 6px 10px;
  border-radius: var(--border-radius-sm);
  font-family: var(--font-arabic);
  font-size: 11px;
  outline: none;
  width: 110px;
  transition: all 0.2s ease;
}

.input-text-mini:focus {
  border-color: var(--primary-color);
}

.btn-mini {
  font-family: var(--font-arabic);
  font-size: 11px;
  font-weight: 600;
  padding: 6px 8px;
  border-radius: var(--border-radius-sm);
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: all 0.2s ease;
}

.btn-success-mini {
  background: rgba(0, 255, 102, 0.15);
  border: 1px solid rgba(0, 255, 102, 0.3);
  color: var(--success-color);
}
.btn-success-mini:hover {
  background: var(--success-color);
  color: var(--text-inverse);
}

.btn-danger-mini {
  background: rgba(255, 51, 102, 0.15);
  border: 1px solid rgba(255, 51, 102, 0.3);
  color: var(--danger-color);
}
.btn-danger-mini:hover {
  background: var(--danger-color);
  color: white;
}

.custom-chk {
  accent-color: var(--primary-color);
  width: 15px;
  height: 15px;
  cursor: pointer;
}

.color-picker-mini {
  display: flex;
}
.color-picker-mini input[type="color"] {
  -webkit-appearance: none;
  border: 1px solid var(--border-color);
  width: 26px;
  height: 26px;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  background: none;
}
.color-picker-mini input[type="color"]::-webkit-color-swatch-wrapper { padding: 0; }
.color-picker-mini input[type="color"]::-webkit-color-swatch { border: none; border-radius: var(--border-radius-sm); }

.action-buttons {
  display: flex;
  gap: 6px;
}

/* Button Styles */
.btn {
  font-family: var(--font-arabic);
  font-size: 11px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: var(--border-radius-sm);
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: all 0.3s ease;
  outline: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: var(--text-inverse);
  font-weight: 700;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0, 240, 255, 0.3);
}

.btn-secondary {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-main);
}
.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--text-muted);
}

.btn-danger {
  background: rgba(255, 51, 102, 0.15);
  border: 1px solid rgba(255, 51, 102, 0.3);
  color: var(--danger-color);
}
.btn-danger:hover {
  background: var(--danger-color);
  color: white;
}

.btn-success {
  background: rgba(0, 255, 102, 0.15);
  border: 1px solid rgba(0, 255, 102, 0.3);
  color: var(--success-color);
}
.btn-success:hover {
  background: var(--success-color);
  color: var(--text-inverse);
}

.btn-icon {
  width: 30px;
  height: 30px;
  padding: 0;
  justify-content: center;
  border-radius: 50%;
}

/* Export Dropdown Menu */
.export-dropdown-container {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 5px);
  left: 0;
  background: #161822;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 240px;
  box-shadow: var(--shadow-lg);
  display: none;
  z-index: 100;
}

.dropdown-menu.show {
  display: flex;
}

.dropdown-menu button {
  font-family: var(--font-arabic);
  font-size: 11px;
  text-align: right;
  padding: 10px 12px;
  border: none;
  background: transparent;
  color: var(--text-main);
  cursor: pointer;
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  gap: 10px;
  transition: all 0.2s ease;
}

.dropdown-menu button:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--primary-color);
}

/* Main Content Area */
.app-main {
  display: flex;
  flex: 1;
  height: calc(100vh - 75px);
  position: relative;
  overflow: hidden;
}

/* Card base */
.card {
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  margin: 12px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.card-header {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-header h2 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-footer {
  padding: 10px 16px;
  border-top: 1px solid var(--border-color);
  font-size: 11px;
  color: var(--text-muted);
}

/* Sidebar Left (Layers) */
.sidebar-left {
  width: 380px;
  min-width: 380px;
  z-index: 5;
}

.layer-checkbox {
  margin-right: 8px;
  cursor: pointer;
  accent-color: var(--primary-color);
  width: 14px;
  height: 14px;
}

.layer-item.is-child {
  margin-left: 28px;
  border-left: 2px solid var(--primary-color);
  padding-left: 10px;
  background: rgba(0, 240, 255, 0.02);
}

.layer-item.is-child::before {
  content: "↳";
  color: var(--primary-color);
  font-size: 14px;
  font-weight: 700;
  margin-right: 2px;
  margin-left: 4px;
  display: inline-block;
}

/* Add Layer Popup Overlay */
.add-layer-popup {
  position: absolute;
  top: 55px;
  right: 12px;
  left: 12px;
  background: #151824;
  border: 1px solid var(--border-color-active);
  border-radius: var(--border-radius-md);
  padding: 12px;
  box-shadow: var(--shadow-lg);
  z-index: 100;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  max-height: 500px;
  overflow-y: auto;
  animation: slide-down 0.25s ease-out;
}

.add-layer-popup::-webkit-scrollbar { width: 4px; }
.add-layer-popup::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 2px; }

.add-layer-popup.hidden {
  display: none !important;
}

@keyframes slide-down {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

.add-layer-popup h3 {
  grid-column: span 2;
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 4px;
  font-weight: 600;
}

.add-layer-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 10px 6px;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  font-family: var(--font-arabic);
  font-size: 10px;
  font-weight: 600;
  text-align: center;
  transition: all 0.2s ease;
}

.add-layer-option:hover {
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.15), rgba(127, 0, 255, 0.15));
  border-color: var(--primary-color);
  color: var(--primary-color);
  transform: translateY(-2px);
}

.add-layer-option i {
  font-size: 16px;
  width: auto;
  text-align: center;
}

/* Layers List */
.layers-list-wrapper {
  flex: 1;
  overflow-y: auto;
  padding: 10px 12px;
}

.layers-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  list-style: none;
}

/* Layer Item Styling + Organization Color Tags */
.layer-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: 8px 10px;
  cursor: pointer;
  border-right: 4px solid transparent; /* default tag */
  transition: all 0.2s ease;
}

/* Organizational Tags border indicators */
.layer-item.tag-red { border-right-color: #ff3366 !important; }
.layer-item.tag-orange { border-right-color: #ff9900 !important; }
.layer-item.tag-yellow { border-right-color: #ffcc00 !important; }
.layer-item.tag-green { border-right-color: #00ff66 !important; }
.layer-item.tag-blue { border-right-color: #00f0ff !important; }
.layer-item.tag-purple { border-right-color: #7f00ff !important; }

.layer-item:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.15);
}

.layer-item.active {
  background: linear-gradient(90deg, rgba(0, 240, 255, 0.06) 0%, rgba(127, 0, 255, 0.02) 100%);
  border-color: var(--primary-color);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.05);
}

.layer-item-content {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  margin-right: 4px;
}

.layer-type-icon {
  font-size: 14px;
  color: var(--text-muted);
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 50%;
  border: 1px solid var(--border-color);
}

.layer-item.active .layer-type-icon {
  color: var(--primary-color);
  border-color: rgba(0, 240, 255, 0.3);
  background: rgba(0, 240, 255, 0.05);
}

.layer-details {
  display: flex;
  flex-direction: column;
}

.layer-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-main);
  max-width: 130px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.layer-subtitle {
  font-size: 9px;
  color: var(--text-muted);
}

.layer-actions {
  display: flex;
  align-items: center;
  gap: 3px;
}

.layer-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  width: 24px;
  height: 24px;
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 11px;
  transition: all 0.2s ease;
}

.layer-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-main);
}

.layer-btn.visibility-btn:hover { color: var(--primary-color); }
.layer-btn.delete-btn:hover { color: var(--danger-color); }
.layer-btn.clone-btn:hover { color: var(--success-color); }

.layer-order-btns {
  display: flex;
  flex-direction: column;
}

.layer-order-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 9px;
  cursor: pointer;
  padding: 0px 2px;
  line-height: 1;
}
.layer-order-btn:hover {
  color: var(--primary-color);
}

/* Center Canvas Viewport */
.canvas-viewport {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  margin: 12px 0;
  background-color: #0d0e14;
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--border-color);
}

.canvas-wrapper {
  width: 100%;
  height: 100%;
  cursor: grab;
  display: flex;
  align-items: center;
  justify-content: center;
  transform-origin: center;
  transition: transform 0.05s ease-out;
  touch-action: none;
}

.canvas-wrapper:active {
  cursor: grabbing;
}

#ornament-svg {
  background: #111422;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  max-width: 96%;
  max-height: 96%;
}

/* Background Presets styles on SVG Overlay */
.canvas-overlay {
  position: absolute;
  z-index: 5;
  pointer-events: auto;
}

.canvas-overlay.top-left {
  top: 16px;
  right: 16px;
}

.canvas-overlay.bottom-right {
  bottom: 16px;
  left: 16px;
}

.bg-selector {
  background: rgba(16, 18, 26, 0.7);
  border: 1px solid var(--border-color);
  padding: 6px;
  border-radius: 30px;
  display: flex;
  gap: 8px;
  backdrop-filter: var(--glass-blur);
}

.bg-btn {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
}

.bg-btn.active {
  border-color: var(--primary-color);
  transform: scale(1.15);
}

.bg-btn[data-bg="grid-dark"] {
  background: radial-gradient(circle, #242838 20%, #0d0e14 100%);
  box-shadow: inset 0 0 5px rgba(255,255,255,0.1);
}
.bg-btn[data-bg="solid-dark"] { background-color: #000000; }
.bg-btn[data-bg="solid-gray"] { background-color: #24252a; }
.bg-btn[data-bg="solid-white"] { background-color: #ffffff; }

/* Grid overlay styling */
.svg-grid-overlay {
  pointer-events: none;
  opacity: 0.15;
  transition: opacity 0.3s ease;
}

.grid-line {
  stroke: rgba(255, 255, 255, 0.3);
  stroke-width: 0.75;
  fill: none;
}

.grid-line[r] {
  stroke-dasharray: 4, 8;
}

/* Canvas Background States (Targeting the ornament canvas itself) */
#ornament-svg.bg-grid-dark {
  background-color: #111422;
  background-image: 
    radial-gradient(rgba(255, 255, 255, 0.02) 20%, transparent 20%),
    radial-gradient(rgba(255, 255, 255, 0.02) 20%, transparent 20%);
  background-size: 30px 30px;
  background-position: 0 0, 15px 15px;
}
#ornament-svg.bg-grid-dark .svg-grid-overlay { opacity: 0.25; }
#ornament-svg.bg-solid-dark { background-color: #000000; }
#ornament-svg.bg-solid-dark .svg-grid-overlay { opacity: 0; }
#ornament-svg.bg-solid-gray { background-color: #2a2b30; }
#ornament-svg.bg-solid-gray .svg-grid-overlay { opacity: 0.15; }
#ornament-svg.bg-solid-white { background-color: #f7f9fc; }
#ornament-svg.bg-solid-white .svg-grid-overlay { opacity: 0.2; }
#ornament-svg.bg-solid-white .grid-line { stroke: rgba(0, 0, 0, 0.2); }

/* Zoom Indicator Overlay */
.zoom-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(16, 18, 26, 0.7);
  border: 1px solid var(--border-color);
  padding: 4px 8px;
  border-radius: 20px;
  backdrop-filter: var(--glass-blur);
}

.zoom-btn {
  background: transparent;
  border: none;
  color: var(--text-main);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}
.zoom-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--primary-color);
}

#zoom-text {
  font-family: var(--font-english);
  font-size: 11px;
  font-weight: 600;
  min-width: 32px;
  text-align: center;
  color: var(--text-muted);
}

/* Sidebar Right (Properties) */
.sidebar-right {
  width: 450px;
  min-width: 450px;
  z-index: 5;
  background: #15171b !important;
}

.properties-wrapper {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  background: #15171b !important;
}

#properties-sidebar .card-header {
  background: #15171b !important;
}

/* 5. Condensed Property Groups */
.prop-group {
  margin-bottom: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: #262932;
  border: 1px solid rgba(255,255,255,0.03);
  padding: 12px;
  border-radius: var(--border-radius-md);
}

.prop-group h3 {
  font-size: 12px;
  font-weight: 700;
  color: var(--primary-color);
  border-bottom: 1px solid rgba(0, 240, 255, 0.15);
  padding-bottom: 6px;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Dual Column Properties to shorten forms */
.prop-row-dual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.prop-row {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.prop-row label {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 600;
}

/* Input Fields Common */
.input-text {
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 8px 12px;
  border-radius: var(--border-radius-sm);
  font-family: var(--font-arabic);
  font-size: 12px;
  outline: none;
  transition: all 0.2s ease;
}

.input-text:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 6px rgba(0, 240, 255, 0.15);
}

.input-select {
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 8px 12px;
  border-radius: var(--border-radius-sm);
  font-family: var(--font-arabic);
  font-size: 12px;
  outline: none;
  cursor: pointer;
  max-width: 100%;
  transition: all 0.2s ease;
}

.input-select:hover, .input-select:focus {
  border-color: var(--primary-color);
}

/* Range Sliders styling */
.range-container {
  display: flex;
  align-items: center;
  gap: 8px;
}

.range-container input[type="range"] {
  flex: 1;
  -webkit-appearance: none;
  background: #dd715a;
  height: 4px;
  border-radius: 2px;
  outline: none;
  cursor: pointer;
  direction: ltr !important;
}

.range-container input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--primary-color);
  box-shadow: 0 0 6px var(--primary-glow);
  transition: all 0.12s ease;
}

.range-container input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

/* 8. Numerical Keyboard Inputs instead of Span */
.range-num-input {
  font-family: var(--font-english);
  font-size: 11px;
  font-weight: 600;
  color: var(--text-main);
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  padding: 3px 6px;
  border-radius: var(--border-radius-sm);
  width: 54px;
  text-align: center;
  outline: none;
  transition: all 0.2s ease;
}

.range-num-input:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 4px var(--primary-glow);
}

/* Remove scroll wheels from number inputs */
.range-num-input::-webkit-outer-spin-button,
.range-num-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/* Checkbox alignment */
.checkbox-row {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  padding: 2px 0;
}

.checkbox-row input[type="checkbox"] {
  accent-color: var(--primary-color);
  width: 14px;
  height: 14px;
  cursor: pointer;
}

.checkbox-row label {
  font-size: 11px;
  color: var(--text-main);
  font-weight: 600;
  cursor: pointer;
}

.border-top {
  border-top: 1px solid var(--border-color);
  padding-top: 12px;
  margin-top: 2px;
}

/* Color Picker Row styling */
.color-picker-wrapper {
  display: flex;
  gap: 8px;
}

.color-picker-wrapper input[type="color"] {
  -webkit-appearance: none;
  border: 1px solid var(--border-color);
  width: 36px;
  height: 34px;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  background: none;
}

.color-picker-wrapper input[type="color"]::-webkit-color-swatch-wrapper { padding: 0; }
.color-picker-wrapper input[type="color"]::-webkit-color-swatch { border: none; border-radius: var(--border-radius-sm); }

.hex-text {
  flex: 1;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 8px 12px;
  border-radius: var(--border-radius-sm);
  font-family: var(--font-english);
  font-size: 12px;
  outline: none;
  text-transform: uppercase;
}

.hidden-row {
  display: none !important;
}

/* Toast Messages */
.toast {
  position: fixed;
  bottom: 24px;
  right: 50%;
  transform: translateX(50%);
  background: rgba(16, 18, 26, 0.95);
  border: 1px solid var(--primary-color);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 15px var(--primary-glow);
  color: var(--text-main);
  padding: 12px 24px;
  border-radius: 30px;
  font-size: 12px;
  font-weight: 600;
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: all 0.3s ease;
  opacity: 1;
}

.toast.hidden {
  opacity: 0;
  bottom: -50px;
  pointer-events: none;
}

/* Special Mirror Layer Card Style */
.layer-item.layer-mirror {
  background: rgba(108, 140, 255, 0.06) !important;
  border-left: 4px solid #6c8cff !important;
  border-right: 1px solid rgba(108, 140, 255, 0.15) !important;
}

.layer-item.layer-mirror.active {
  background: rgba(108, 140, 255, 0.14) !important;
  border-left-color: #6c8cff !important;
  box-shadow: 0 0 10px rgba(108, 140, 255, 0.12);
}

.layer-item.layer-mirror .layer-type-icon i {
  color: #6c8cff !important;
}


/* ==========================================================
   CUSTOM FONT SIZES & UI CUSTOMIZATIONS
   ========================================================== */

/* 1. App Title (Max: 16px) */
.header-logo h1, .logo-text h1 {
  font-size: 16px !important;
}

/* 2. Interface Main Body / Medium (12px - 13px) */
body, 
label, 
input, 
select, 
option, 
button, 
.btn, 
.btn-mini, 
.add-layer-option span, 
.layer-title, 
.card-header h2, 
.prop-group h3,
.layer-item,
.preset-dropdown {
  font-size: 12.5px !important;
}

/* 3. Secondary details / Smaller (10.5px - 11.5px) */
.zoom-indicator span, 
#zoom-text, 
.layer-subtitle, 
.range-num-input, 
#layers-count, 
.range-container::after, 
.v-badge,
.help-tip,
.control-group label {
  font-size: 11px !important;
}

.add-layer-option-thumb {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 8px 4px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  color: var(--text-color);
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
}

.add-layer-option-thumb i,
.add-layer-option-thumb .material-symbols-outlined {
  font-size: 18px !important;
  margin-bottom: 4px;
  color: var(--accent-color);
}

.layer-type-icon .material-symbols-outlined {
  font-size: 18px !important;
  color: var(--accent-color);
}

.add-layer-option-thumb span {
  font-size: 11px;
}

.add-layer-option-thumb:hover {
  border-color: var(--primary-color);
  background: rgba(255, 255, 255, 0.05);
  transform: translateY(-1px);
}

.add-layer-option-thumb:active {
  transform: translateY(0);
}

.ui-icon-btn {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  width: 48px;
  height: 39px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
}

.ui-icon-btn:hover {
  background: var(--bg-card-hover);
  border-color: rgba(255,255,255,0.2);
}

.ui-icon-btn.active {
  background: var(--accent-color);
  color: var(--text-inverse);
  border-color: var(--accent-color);
  box-shadow: 0 0 8px rgba(221, 113, 90, 0.4);
}

.mirror-btn.active {
  background: var(--accent-color) !important;
  color: #ffffff !important;
  font-weight: bold;
  border-color: var(--accent-color) !important;
  box-shadow: 0 0 10px rgba(221, 113, 90, 0.3);
}

.mirror-btn:hover:not(.active) {
  background: rgba(255, 255, 255, 0.05) !important;
  border-color: rgba(255, 255, 255, 0.15) !important;
}