:root {

  /* Light theme: FF6D1F orange + dark white shades */
  --bg-primary: #f8f8f8;
  --bg-secondary: #f0f0f0;
  --bg-tertiary: #e8e8e8;
  --border-color: #d0d0d0;
  --text-primary: #2a2a2a;
  --text-secondary: #555555;
  --text-tertiary: #777777;
  --input-bg: #f8f8f8;
  --input-border: #c0c0c0;
  --btn-primary: #FF6D1F;
  --btn-primary-hover: #ff8533;
  --btn-secondary: #e8e8e8;
  --btn-secondary-border: #c8c8c8;
  --btn-danger: #f97373;
  --outline-color: #FF6D1F;
  --glow-primary: rgba(255, 109, 31, 0.08);
  --glow-secondary: rgba(255, 109, 31, 0.12);
  --card-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);

  /* Scrollbars */
  --scrollbar-track: rgba(0, 0, 0, 0.06);
  --scrollbar-thumb: rgba(0, 0, 0, 0.22);
  --scrollbar-thumb-hover: rgba(0, 0, 0, 0.34);
}

[data-theme="dark"] {

  /* Dark theme: FF6D1F orange + light black shades */
  --bg-primary: #1a1a1a;
  --bg-secondary: #252525;
  --bg-tertiary: #303030;
  --border-color: #404040;
  --text-primary: #f0f0f0;
  --text-secondary: #c8c8c8;
  --text-tertiary: #909090;
  --input-bg: #1a1a1a;
  --input-border: #454545;
  --btn-primary: #FF6D1F;
  --btn-primary-hover: #ff8533;
  --btn-secondary: #303030;
  --btn-secondary-border: #404040;
  --btn-danger: #f97373;
  --outline-color: #FF6D1F;
  --glow-primary: rgba(255, 109, 31, 0.25);
  --glow-secondary: rgba(255, 109, 31, 0.4);
  --card-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);

  --scrollbar-track: rgba(255, 255, 255, 0.06);
  --scrollbar-thumb: rgba(255, 255, 255, 0.18);
  --scrollbar-thumb-hover: rgba(255, 255, 255, 0.28);
}

/* -------------------------------------------------------------------------- */
/* Global scrollbar theming (main app)                                        */
/* -------------------------------------------------------------------------- */

* {
  scrollbar-width: thin; /* Firefox */
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track); /* Firefox */
}

*::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
*::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}
*::-webkit-scrollbar-thumb {
  background-color: var(--scrollbar-thumb);
  border-radius: 999px;
  border: 2px solid var(--scrollbar-track);
}
*::-webkit-scrollbar-thumb:hover {
  background-color: var(--scrollbar-thumb-hover);
}

* {
  box-sizing: border-box;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: stretch;
  justify-content: stretch;
  padding: 0;
  background: var(--bg-primary);
  color: var(--text-primary);
  position: relative;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,0,0,0.01), transparent 50%);
  pointer-events: none;
  z-index: -1;
}

[data-theme="dark"] body::before {
  background: linear-gradient(135deg, rgba(255,255,255,0.005), transparent 50%);
}

.app-shell {
  width: 100%;
  max-width: none;
  display: flex;
  gap: 0;
  background: var(--bg-secondary);
  border-radius: 0;
  border: none;
  padding: 0;
  box-shadow: var(--card-shadow);
  backdrop-filter: blur(14px);
  height: 100vh;
}

[data-theme="dark"] .app-shell {
  background: var(--bg-secondary);
  border-color: var(--btn-primary);
}
.sidebar {
  flex: 0 0 320px;
  background: var(--bg-secondary);
  border-right: 2px solid var(--btn-primary);
  border-radius: 0;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
  height: 100%;
  overflow-y: auto;
}
.sidebar-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 4px;
}
.logo {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.logo svg {
  width: 100%;
  height: 100%;
}

[data-theme="dark"] .logo-light {
  fill: #8b949e;
  stroke: #6e7681;
}
[data-theme="dark"] .logo-dark {
  fill: #6e7681;
}
[data-theme="light"] .logo-light {
  fill: #d3d3d3;
  stroke: #808080;
}
[data-theme="light"] .logo-dark {
  fill: #808080;
}
.sidebar h2 {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
  flex: 1;
  line-height: 1.4;
}
.brand-subtitle {
  font-size: 12px;
  color: var(--text-tertiary);
  margin-top: 4px;
  margin-bottom: 8px;
  font-weight: 400;
  line-height: 1.5;
}
.section-title {
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.10em;
  color: var(--btn-primary);
  margin: 10px 0 6px 0;
  padding: 6px 10px;
  border-radius: 12px;
  border: 2px solid rgba(255, 109, 31, 0.22);
  background: linear-gradient(
    135deg,
    rgba(255, 109, 31, 0.12),
    rgba(255, 109, 31, 0.04)
  );
  box-shadow:
    0 10px 24px rgba(0, 0, 0, 0.14),
    0 0 0 1px rgba(255, 109, 31, 0.10);
}

.display-settings {
  display: none;
}

.display-settings.tft-active {
  display: block;
}

.display-settings.oled-active {
  display: block;
}
select,
input[type="number"],
input[type="text"],
input[type="range"],
textarea {
  width: 100%;
  padding: 6px 8px;
  border-radius: 6px;
  border: 1px solid var(--input-border);
  background: var(--input-bg);
  color: var(--text-primary);
  font-size: 12px;
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  background: var(--bg-tertiary);
  outline: none;
  padding: 0;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  background: var(--btn-primary);
  border-radius: 50%;
  cursor: pointer;
}

input[type="range"]::-moz-range-thumb {
  width: 16px;
  height: 16px;
  background: var(--btn-primary);
  border-radius: 50%;
  cursor: pointer;
  border: none;
}

/* OLED Fill Control Styling */
.fill-control {
  display: flex;
  align-items: center;
  gap: 6px;
}

.fill-control input[type="checkbox"] {
  display: none;
}

.fill-label {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  font-weight: 500;
  color: var(--text-primary);
  user-select: none;
  padding: 2px 6px;
  border-radius: 4px;
  transition: all 0.2s ease;
  font-size: 12px;
}

.fill-label:hover {
  background: rgba(255, 109, 31, 0.1);
}

.fill-indicator {
  width: 16px;
  height: 16px;
  border-radius: 3px;
  border: 2px solid var(--btn-primary);
  background: var(--btn-primary);
  position: relative;
  transition: all 0.2s ease;
  box-shadow: 0 1px 3px rgba(255, 109, 31, 0.2);
}

.fill-control input[type="checkbox"]:checked + .fill-label .fill-indicator {
  background: var(--btn-primary);
  border-color: var(--btn-primary);
  box-shadow: 0 1px 6px rgba(255, 109, 31, 0.4);
}

.fill-control input[type="checkbox"]:checked + .fill-label .fill-indicator::after {
  content: "✓";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: white;
  font-size: 10px;
  font-weight: bold;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.fill-control input[type="checkbox"]:not(:checked) + .fill-label .fill-indicator {
  background: transparent;
  border-color: var(--border-color);
}

.fill-control input[type="checkbox"]:not(:checked) + .fill-label .fill-indicator::after {
  content: "○";
  color: var(--text-tertiary);
  font-size: 8px;
}
select:focus,
input:focus,
textarea:focus {
  outline: 2px solid var(--btn-primary);
  outline-offset: -1px;
}

/* Input Variants */
.input-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.input-group.inline {
  flex-direction: row;
  align-items: center;
  gap: 8px;
}
.input-group.inline label {
  margin: 0;
  min-width: 80px;
}

.input.error {
  border-color: var(--btn-danger);
}
.input.error:focus {
  outline-color: var(--btn-danger);
}

.input.success {
  border-color: #10b981;
}
.input.success:focus {
  outline-color: #10b981;
}

label {
  font-size: 11px;
  color: var(--text-secondary);
  font-weight: 500;
}
label.required::after {
  content: "*";
  color: var(--btn-danger);
  margin-left: 2px;
}
.btn {
  padding: 6px 8px;
  border-radius: 6px;
  border: 1px solid var(--btn-primary);
  background: var(--btn-primary);
  color: white;
  font-size: 12px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-right: 4px;
  margin-bottom: 4px;
  white-space: nowrap;
  transition: all 0.3s ease;
}
.btn:hover {
  background: var(--btn-primary-hover);
  border-color: var(--btn-primary-hover);
  transform: translateY(-1px);
}
a.btn {
  text-decoration: none;
}
.btn.secondary {
  background: var(--btn-secondary);
  border: 1px solid var(--btn-secondary-border);
  color: var(--text-primary);
}
/* Button Variants */
.btn.secondary:hover {
  background: var(--bg-tertiary);
  border-color: var(--border-color);
}
.btn.outline {
  background: transparent;
  border: 2px solid var(--btn-primary);
  color: var(--btn-primary);
}
.btn.outline:hover {
  background: var(--btn-primary);
  color: white;
  transform: translateY(-1px);
}
.btn.ghost {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
}
.btn.ghost:hover {
  background: rgba(255, 109, 31, 0.1);
  border-color: var(--btn-primary);
  color: var(--btn-primary);
  transform: none;
}
.btn.success {
  background: #10b981;
  border-color: #10b981;
  color: white;
}
.btn.success:hover {
  background: #059669;
  border-color: #059669;
  transform: translateY(-1px);
}
.btn.warning {
  background: #f59e0b;
  border-color: #f59e0b;
  color: white;
}
.btn.warning:hover {
  background: #d97706;
  border-color: #d97706;
  transform: translateY(-1px);
}
.btn.danger {
  background: var(--btn-danger);
  border-color: var(--btn-danger);
}
.btn.danger:hover {
  background: #dc2626;
  border-color: #dc2626;
  transform: translateY(-1px);
}

/* Button Sizes */
.btn.small {
  padding: 4px 8px;
  font-size: 11px;
}
.btn.medium {
  padding: 8px 16px;
  font-size: 13px;
}
.btn.large {
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 500;
}

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

/* Legacy buttons - keep for compatibility */
.btn.github {
  background: #1f2328;
  border-color: #1f2328;
  color: #f6f8fa;
}
.btn.github:hover {
  background: #24292f;
  border-color: #24292f;
}
.btn.patreon {
  background: linear-gradient(135deg, #f97316, #ec4899);
  border-color: #ec4899;
  color: #fff;
  box-shadow: 0 8px 18px rgba(236, 72, 153, 0.35);
}
.btn.patreon:hover {
  background: linear-gradient(135deg, #fb923c, #f472b6);
  border-color: #f472b6;
  box-shadow: 0 10px 22px rgba(236, 72, 153, 0.45);
}

.chip-btn {
  background: var(--btn-primary);
  border-color: var(--btn-primary);
  color: white;
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: 999px;
  justify-content: center;
  transition: all 0.3s ease;
}
.chip-btn:hover {
  background: var(--btn-primary-hover);
  border-color: var(--btn-primary-hover);
  color: white;
  transform: scale(1.05);
}

.icon-btn-ghost {
  width: 32px;
  height: 32px;
  padding: 0;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border-color: transparent;
  color: var(--text-secondary);
  transition: all 0.3s ease;
}
.icon-btn-ghost:hover {
  background: var(--btn-primary);
  border-color: var(--btn-primary);
  color: white;
}
.icon-btn-ghost svg {
  width: 16px;
  height: 16px;
}

#applyRes,
#clearAll {
  width: 100%;
  margin-top: 8px;
  border-radius: 999px;
  justify-content: center;
}
#applyRes svg {
  width: 18px;
  height: 18px;
  margin-right: 6px;
}

#applyRes:hover {
  background: var(--btn-primary);
  border-color: var(--btn-primary);
  color: white;
}

#addScreenBtn:hover {
  background: rgba(255, 109, 31, 0.14);
  border-color: #FF6D1F;
  color: #FF6D1F;
}

#deleteElement:hover {
  background: rgba(248, 113, 113, 0.12);
  border-color: #f87171;
  color: #f87171;
}

#clearAll {
  font-size: 12px;
}
#clearAll:hover {
  background: rgba(248, 113, 113, 0.12);
  border-color: #f87171;
  color: #f87171;
}

.toggle-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 11px;
  color: var(--text-secondary);
}
.toggle-input {
  position: relative;
  width: 36px;
  height: 18px;
  appearance: none;
  -webkit-appearance: none;
  background: #4b5563;
  border-radius: 999px;
  outline: none;
  cursor: pointer;
  transition: background 0.18s ease;
}
.toggle-input::before {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  border-radius: 999px;
  background: #e5e7eb;
  box-shadow: 0 1px 2px rgba(0,0,0,0.4);
  transition: transform 0.18s ease;
}
.toggle-input:checked {
  background: #FF6D1F;
}
.toggle-input:checked::before {
  transform: translateX(18px);
}

.icon-box {
  width: 28px;
  height: 28px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-right: 0;
  font-size: 13px;
  line-height: 1;
  background: var(--btn-primary);
  border: 1px solid var(--btn-primary);
  color: white;
  flex-shrink: 0;
  transition: background-color 0.15s ease, border-color 0.15s ease,
    color 0.15s ease, transform 0.1s ease;
}
.icon-box svg {
  width: 18px;
  height: 18px;
}
.icon-box.shape,
.icon-box.ui {
  border-color: var(--border-color);
}

.chip-btn:hover .icon-box.shape {
  background: var(--btn-primary-hover);
  border-color: var(--btn-primary-hover);
  color: white;
  transform: translateY(-1px);
}
.chip-btn:hover .icon-box.ui {
  background: var(--btn-primary-hover);
  border-color: var(--btn-primary-hover);
  color: white;
  transform: translateY(-1px);
}
#themeToggle {
  min-width: 32px;
  padding: 4px 8px;
}
#themeIcon {
  font-size: 14px;
  line-height: 1;
}
.btn-group {
  display: flex;
  flex-wrap: wrap;
}

/* -------------------------------------------------------------------------- */
/* Elementor-like widget tiles for element add buttons                         */
/* -------------------------------------------------------------------------- */

/* Only target the element palettes in the left sidebar cards */
.sidebar-card.section-card .btn-group {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

@media (max-width: 420px) {
  .sidebar-card.section-card .btn-group {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.sidebar-card.section-card .chip-btn {
  width: 100%;
  height: 86px;
  margin: 0;
  border-radius: 16px;
  padding: 10px 10px;
  flex-direction: column;
  justify-content: center;
  gap: 8px;
  border: 1px solid rgba(255, 109, 31, 0.22);
  background: linear-gradient(
    135deg,
    rgba(255, 109, 31, 0.10),
    rgba(255, 109, 31, 0.04)
  );
  box-shadow:
    0 10px 22px rgba(0, 0, 0, 0.12),
    0 0 0 1px rgba(255, 109, 31, 0.06);
}

.sidebar-card.section-card .chip-btn:hover {
  transform: translateY(-1px);
  border-color: rgba(255, 109, 31, 0.55);
  background: linear-gradient(
    135deg,
    rgba(255, 109, 31, 0.14),
    rgba(255, 109, 31, 0.06)
  );
}

.sidebar-card.section-card .chip-btn:active {
  transform: translateY(0);
}

.sidebar-card.section-card .chip-btn .icon-box {
  width: 38px;
  height: 38px;
  border-radius: 14px;
  box-shadow:
    0 10px 20px rgba(0, 0, 0, 0.18),
    0 0 0 1px rgba(255, 109, 31, 0.10);
}

.sidebar-card.section-card .chip-btn .icon-box svg {
  width: 20px;
  height: 20px;
}

.sidebar-card.section-card .chip-label {
  font-size: 11px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: 0.01em;
  line-height: 1;
  opacity: 0.92;
}

[data-theme="dark"] .sidebar-card.section-card .chip-label {
  color: var(--text-primary);
}

.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--bg-secondary);
  border: none;
  border-radius: 0;
  overflow: hidden;
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.08);
  height: 100%;
}
.top-bar {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: stretch;
  background: var(--bg-secondary);
  gap: 12px;
  position: sticky;
  top: 0;
  z-index: 5;
  backdrop-filter: blur(6px);
}
.top-left {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.top-left-primary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
.status-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.top-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.top-bar span {
  font-size: 12px;
  color: var(--text-secondary);
}
.workspace {
  display: flex;
  flex: 1;
  overflow: hidden;
  background: var(--bg-primary);
  border-top: 1px solid var(--border-color);
}
.preview-wrapper {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.preview-frame {
  background: var(--bg-secondary);
  padding: 16px;
  border-radius: 24px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  border: 2px solid var(--btn-primary);
  overflow: visible;
  display: flex;
  align-items: center;
  justify-content: center;
}
#preview {
  position: relative;
  background: black;
  overflow: hidden;
  width: 240px;
  height: 320px;
  image-rendering: auto;
}

#preview.oled-display {
  background: #e0f7ff; /* Light cyan blue background */
  box-shadow:
    inset 0 0 0 1px #00cccc,
    0 0 20px rgba(0, 204, 204, 0.2),
    0 0 40px rgba(0, 255, 255, 0.1);
  position: relative;
  image-rendering: pixelated !important;
  image-rendering: -moz-crisp-edges !important;
  image-rendering: crisp-edges !important;
  -webkit-font-smoothing: none !important;
  -moz-osx-font-smoothing: none !important;
}

#preview.oled-display::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at center, rgba(0, 255, 255, 0.05) 0%, transparent 70%);
  pointer-events: none;
  z-index: -1;
}

#preview.oled-display::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    linear-gradient(rgba(0, 255, 255, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 255, 0.1) 1px, transparent 1px);
  background-size: var(--pixel-size, 8px) var(--pixel-size, 8px);
  pointer-events: none;
  /* Keep grid above OLED canvas but below interaction overlays */
  z-index: 6;
  opacity: 0.35;
}

#preview.manipulating::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    linear-gradient(rgba(255, 109, 31, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 109, 31, 0.1) 1px, transparent 1px);
  background-size: 20px 20px;
  pointer-events: none;
  z-index: 1;
}
.ui-element {
  position: absolute;
  border-radius: 4px;
  cursor: move;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  user-select: none;
  box-sizing: border-box;
  transition: all 0.15s ease;
  border: 1px solid transparent;
}

.ui-element:hover:not(.selected) {
  transform: translateY(-1px) scale(1.02);
  box-shadow: 0 4px 16px rgba(255, 109, 31, 0.15), 0 2px 8px rgba(0, 0, 0, 0.1);
  border-color: rgba(255, 109, 31, 0.3);
  z-index: 5;
}

.ui-element.selected {
  outline: 2px solid var(--outline-color);
  outline-offset: 2px;
  box-shadow: 0 0 0 1px var(--outline-color), 0 8px 24px rgba(255, 109, 31, 0.25), 0 4px 12px rgba(0, 0, 0, 0.15);
  border-color: var(--outline-color);
  transform: scale(1.01);
  z-index: 20;
}

/* Text elements are just text (no box/border) */
.ui-element[type="text"] {
  border: none;
  box-shadow: none;
}

/* OLED-specific element styles - Aggressive Pixelation */
.ui-element.oled-element {
  image-rendering: pixelated !important;
  image-rendering: -moz-crisp-edges !important;
  image-rendering: crisp-edges !important;
  border: 1px solid currentColor;
  box-shadow: none;
  background-size: 1px 1px !important;
  border-radius: 0 !important; /* Pixel-perfect corners */
  color: #0088aa; /* Default OLED cyan border color */
}

/* OLED: text should not inherit the forced border */
.ui-element.oled-element[type="text"] {
  border: none !important;
  box-shadow: none !important;
}

.ui-element.oled-element * {
  image-rendering: pixelated !important;
  image-rendering: -moz-crisp-edges !important;
  image-rendering: crisp-edges !important;
}

/* Force pixelated backgrounds and borders for OLED */
.ui-element.oled-element {
  background-repeat: repeat !important;
  border-style: solid !important;
  border-image: none !important;
  -webkit-font-smoothing: none !important;
  -moz-osx-font-smoothing: none !important;
}

/* OLED: media elements (images/icons) should NOT use the 1px tiled background rules */
.ui-element.oled-element[type="image"],
.ui-element.oled-element[type="icon"] {
  background-repeat: no-repeat !important;
  background-size: contain !important;
  background-position: center !important;
  border-radius: 4px !important;
  border: none !important; /* no cyan outline around media */
  /* Do NOT pixelate icons/images in OLED mode */
  image-rendering: auto !important;
}

.ui-element.oled-element:hover:not(.selected) {
  border-color: #00ccee;
  box-shadow: 0 0 4px rgba(0, 204, 238, 0.4);
}

.ui-element.oled-element.selected {
  outline: 2px solid #44eeff;
  outline-offset: 1px;
  border-color: #44eeff;
  box-shadow: 0 0 8px rgba(68, 238, 255, 0.6);
}

.ui-element.oled-element .ui-text {
  font-family: 'Courier New', 'Monaco', 'Menlo', monospace !important;
  font-weight: bold !important;
  font-size: 12px !important;
  text-shadow: 1px 1px 0px rgba(0, 0, 0, 0.8) !important;
  letter-spacing: 0px !important;
  line-height: 1 !important;
  image-rendering: pixelated !important;
}

/* Specific OLED styling for different element types - using consistent color scheme */
.ui-element.oled-element[type="rect"],
.ui-element.oled-element[type="roundrect"],
.ui-element.oled-element[type="card"],
.ui-element.oled-element[type="header"] {
  /* Let JavaScript handle colors for consistency */
}

.ui-element.oled-element[type="circle"] {
  border-radius: 50% !important;
  /* Circle fill handled by JavaScript for consistency */
}

.ui-element.oled-element[type="line"],
.ui-element.oled-element[type="divider"] {
  /* Line colors handled by JavaScript for consistency */
}

.ui-element.oled-element[type="progress"] {
  /* Progress colors handled by JavaScript for consistency */
}

.ui-element.oled-element[type="progress"] > div {
  /* Progress bar colors handled by JavaScript for consistency */
}

.ui-element.oled-element[type="button"] {
  /* Button colors handled by JavaScript for consistency */
}

.ui-element.dragging {
  opacity: 0.8;
  cursor: grabbing;
  transform: scale(1.05) rotate(2deg);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}

.ui-element.resizing {
  opacity: 0.9;
  border-color: var(--outline-color);
}

.ui-element.creating {
  animation: elementCreate 0.3s ease-out;
  box-shadow: 0 0 20px rgba(255, 109, 31, 0.4);
}

@keyframes elementCreate {
  0% {
    opacity: 0;
    transform: scale(0.8) rotate(-10deg);
  }
  50% {
    opacity: 0.7;
    transform: scale(1.1) rotate(5deg);
  }
  100% {
    opacity: 1;
    transform: scale(1) rotate(0deg);
  }
}
.resize-handle {
  position: absolute;
  width: 12px;
  height: 12px;
  background: var(--btn-primary);
  border: 2px solid white;
  border-radius: 50%;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2), 0 0 0 1px rgba(255, 109, 31, 0.3);
  z-index: 25;
  cursor: nwse-resize;
  opacity: 0;
  transition: all 0.15s ease;
}

.ui-element.selected .resize-handle {
  opacity: 1;
}

.resize-handle:hover {
  transform: scale(1.2);
  background: white;
  border-color: var(--btn-primary);
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.3), 0 0 0 2px var(--btn-primary);
}

.resize-handle.nw { top: -6px; left: -6px; cursor: nw-resize; }
.resize-handle.ne { top: -6px; right: -6px; cursor: ne-resize; }
.resize-handle.sw { bottom: -6px; left: -6px; cursor: sw-resize; }
.resize-handle.se { bottom: -6px; right: -6px; cursor: se-resize; }
.resize-handle.n { top: -6px; left: 50%; transform: translateX(-50%); cursor: n-resize; }
.resize-handle.s { bottom: -6px; left: 50%; transform: translateX(-50%); cursor: s-resize; }
.resize-handle.e { right: -6px; top: 50%; transform: translateY(-50%); cursor: e-resize; }
.resize-handle.w { left: -6px; top: 50%; transform: translateY(-50%); cursor: w-resize; }
.properties {
  --props-pad: 10px;
  flex: 0 0 320px;
  border-left: 1px solid var(--border-color);
  padding: var(--props-pad);
  background: var(--bg-secondary);
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow-y: auto;
  position: relative;
  overscroll-behavior: contain;

  /* Non-intrusive scroll shadows (doesn't add layout blocks / overlap content) */
  background:
    linear-gradient(var(--bg-secondary), rgba(0, 0, 0, 0)) 0 0 / 100% 16px local,
    linear-gradient(rgba(0, 0, 0, 0), var(--bg-secondary)) 0 100% / 100% 16px local,
    var(--bg-secondary);
}

/* Sticky "Selected Element" header inside the properties sidebar */
.properties > .section-title {
  position: sticky;
  top: 0;
  z-index: 7;
  margin: 0;
  /* keep the header readable over scrolled content */
  background: var(--bg-secondary);
  padding-top: 6px;
  padding-bottom: 6px;
  border-radius: 12px;
}

/* Empty state */
.properties #noSelection {
  padding: 14px 12px;
  border-radius: 16px;
  border: 1px solid var(--border-color);
  background: linear-gradient(
    135deg,
    rgba(255, 109, 31, 0.06),
    rgba(255, 109, 31, 0.02)
  );
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 1.4;
}

/* Make the properties panel feel like a contained card */
.properties #propsPanel {
  border-radius: 18px;
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  padding: 12px;
  margin-top: 2px;
  box-shadow: 0 12px 26px rgba(0, 0, 0, 0.10);
}

.properties #propsPanel .prop-group {
  margin: 0 0 12px 0;
  padding: 12px;
  border-radius: 14px;
  border: 1px solid rgba(0, 0, 0, 0.08);
  background: var(--bg-secondary);
}

[data-theme="dark"] .properties #propsPanel .prop-group {
  border-color: rgba(255, 255, 255, 0.10);
  background: var(--bg-secondary);
}

.properties #propsPanel .prop-group:last-child {
  margin-bottom: 0;
}

.properties #propsPanel .prop-row {
  gap: 10px;
  margin-bottom: 10px;
}

/* -------------------------------------------------------------------------- */
/* Right sidebar: settings blocks                                              */
/* -------------------------------------------------------------------------- */

.properties .settings-block {
  border: 1px solid var(--border-color);
  border-radius: 18px;
  padding: 10px;
  background: var(--bg-primary);
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.08);
}

.properties .settings-block + .settings-block {
  margin-top: 10px;
}

/* Keep the title inside the block tight */
.properties .settings-block > .section-title {
  margin: 0 0 8px 0;
}

/* Avoid double-card look: inside a settings-block, prop-groups become "flat" */
.properties .props-section .settings-block .prop-group {
  margin: 0 0 10px 0;
  padding: 0;
  border: none;
  background: transparent;
}

.properties .props-section .settings-block .prop-group:last-child {
  margin-bottom: 0;
}

/* Color pills inside the sidebar: align nicely + feel clickable */
.properties #propsPanel .prop-group .pill {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border-color);
  background: var(--bg-tertiary);
  max-width: 100%;
  min-width: 0;
}

.properties #propsPanel .color-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.properties #propsPanel .color-row .pill {
  width: 100%;
  justify-content: flex-start;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 12px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
}

.properties #propsPanel .color-row input[type="color"] {
  width: 44px;
  height: 28px;
  flex: 0 0 auto;
  border-radius: 10px;
  border: 1px solid rgba(0, 0, 0, 0.25);
  background: transparent;
  padding: 0;
}

.properties #propsPanel .color-row span {
  white-space: nowrap;
  font-weight: 700;
  color: var(--text-primary);
}

/* Make the tiny default color-swatch chrome look nicer */
.properties #propsPanel .color-row input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
  border-radius: 10px;
}
.properties #propsPanel .color-row input[type="color"]::-webkit-color-swatch {
  border: none;
  border-radius: 10px;
}
.properties #propsPanel .color-row input[type="color"]::-moz-color-swatch {
  border: none;
  border-radius: 10px;
}

.properties #propsPanel .btn-group {
  gap: 6px;
}

/* Delete element: match app button styling, but emphasize danger */
#deleteElement {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 10px;
}

#deleteElement svg {
  width: 16px;
  height: 16px;
}

/* Softer danger button than the default .btn.danger (less "harsh") */
#deleteElement.btn.danger {
  background: rgba(249, 115, 115, 0.14);
  border-color: rgba(249, 115, 115, 0.55);
  color: #fecaca;
}
[data-theme="light"] #deleteElement.btn.danger {
  color: #b91c1c;
}

#deleteElement.btn.danger:hover {
  background: rgba(249, 115, 115, 0.22);
  border-color: rgba(249, 115, 115, 0.85);
  transform: translateY(-1px);
}

#deleteElement.btn.danger:active {
  transform: translateY(0);
}
.prop-group {
  margin-bottom: 6px;
}
.prop-row {
  display: flex;
  gap: 8px;
  margin-bottom: 4px;
}
.prop-row > div {
  flex: 1;
}
.fn-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 4px;
}
.code-panel {
  height: 32%;
  border-top: 1px solid var(--border-color);
  padding: 8px;
  background: var(--bg-secondary);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
#codeOutput {
  flex: 1;
  resize: vertical;
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco,
    Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 11px;
  background: var(--input-bg);
  color: var(--text-primary);
  border-radius: 8px;
  border: 1px solid var(--input-border);
  padding: 8px;
}
/* Badge/Pill Variants */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--bg-tertiary);
  font-size: 10px;
  color: var(--text-secondary);
  font-weight: 500;
}

.pill.primary {
  background: rgba(255, 109, 31, 0.08);
  color: var(--btn-primary);
  border: 1px solid rgba(255, 109, 31, 0.15);
}

.pill.success {
  background: rgba(16, 185, 129, 0.08);
  color: #10b981;
  border: 1px solid rgba(16, 185, 129, 0.15);
}

.pill.warning {
  background: rgba(245, 158, 11, 0.08);
  color: #f59e0b;
  border: 1px solid rgba(245, 158, 11, 0.15);
}

.pill.danger {
  background: rgba(249, 115, 115, 0.08);
  color: var(--btn-danger);
  border: 1px solid rgba(249, 115, 115, 0.15);
}

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

.pill.small {
  padding: 1px 6px;
  font-size: 9px;
}

.pill.large {
  padding: 4px 12px;
  font-size: 12px;
}

/* Status indicators */
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}

.status-dot.active {
  background: #10b981;
  box-shadow: 0 0 4px rgba(16, 185, 129, 0.3);
}

.status-dot.warning {
  background: #f59e0b;
  box-shadow: 0 0 4px rgba(245, 158, 11, 0.3);
}

.status-dot.error {
  background: var(--btn-danger);
  box-shadow: 0 0 4px rgba(249, 115, 115, 0.3);
}

.status-dot.offline {
  background: var(--text-tertiary);
}

.bg-color-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.bg-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.bg-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--border-color);
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  font-size: 11px;
  cursor: pointer;
}
.bg-chip:hover {
  filter: brightness(1.08);
}
.bg-chip-swatch {
  width: 14px;
  height: 14px;
  border-radius: 4px;
  border: 1px solid rgba(0,0,0,0.4);
}
.pill.soft {
  background: var(--btn-primary);
  color: white;
}
/* Card Variants */
.sidebar-card {
  border: 1px solid var(--border-color);
  border-radius: 18px;
  padding: 12px;
  background: var(--bg-primary);
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: all 0.3s ease;
}

/* Make the Tools section stand out */
.sidebar-card.tools-card {
  border: 2px solid rgba(255, 109, 31, 0.45);
  background: linear-gradient(
    135deg,
    rgba(255, 109, 31, 0.14),
    rgba(255, 109, 31, 0.06)
  );
  box-shadow:
    0 14px 32px rgba(0, 0, 0, 0.16),
    0 0 0 1px rgba(255, 109, 31, 0.10);
}

.sidebar-card.section-card {
  border: 2px solid rgba(255, 109, 31, 0.28);
  background: linear-gradient(
    135deg,
    rgba(255, 109, 31, 0.08),
    rgba(255, 109, 31, 0.03)
  );
  box-shadow:
    0 10px 24px rgba(0, 0, 0, 0.12),
    0 0 0 1px rgba(255, 109, 31, 0.08);
}

.sidebar-card.section-card:hover {
  box-shadow:
    0 14px 32px rgba(0, 0, 0, 0.16),
    0 0 0 1px rgba(255, 109, 31, 0.14);
}

.sidebar-card.tools-card .link-chip {
  padding: 10px 12px;
  font-size: 13px;
  font-weight: 600;
  border-color: rgba(255, 109, 31, 0.18);
}

.sidebar-card.tools-card .link-chip:hover {
  background: rgba(255, 255, 255, 0.92);
  border-color: rgba(255, 109, 31, 0.55);
}

[data-theme="dark"] .sidebar-card.tools-card .link-chip:hover {
  background: rgba(255, 255, 255, 0.10);
  border-color: rgba(255, 109, 31, 0.55);
}

.sidebar-card.tools-card .link-chip::after {
  content: "↗";
  margin-left: auto;
  opacity: 0.65;
  font-size: 13px;
}

.sidebar-card.elevated {
  box-shadow: var(--card-shadow);
  border-color: rgba(255, 109, 31, 0.1);
}

.sidebar-card.borderless {
  border: none;
  background: var(--bg-secondary);
}

.sidebar-card.accent {
  border-left: 4px solid var(--btn-primary);
  border-radius: 16px 18px 18px 16px;
}

.sidebar-card.highlight {
  border-color: var(--btn-primary);
  background: rgba(255, 109, 31, 0.9);
  color: white;
}

.sidebar-card.highlight .sidebar-card-title {
  color: white;
}

.sidebar-card.note {
  background: var(--bg-secondary);
  border-color: var(--border-color);
}
.sidebar-card-title {
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.10em;
  color: var(--btn-primary);
}
.link-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(0,0,0,0.08);
  text-decoration: none;
  font-size: 12px;
  color: var(--text-primary);
  background: rgba(255,255,255,0.8);
}
[data-theme="dark"] .link-chip {
  border-color: rgba(255,255,255,0.1);
  background: rgba(255,255,255,0.08);
}
.link-chip:hover {
  border-color: var(--btn-primary);
}
.sidebar-card.note {
  background: var(--bg-secondary);
}

/* -------------------------------------------------------------------------- */
/* UI Examples + Icon List (sidebar extras)                                   */
/* -------------------------------------------------------------------------- */

.mini-hint {
  font-size: 11px;
  color: var(--text-tertiary);
  line-height: 1.35;
}

.example-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.ui-examples-tabs {
  display: inline-flex;
  gap: 6px;
  padding: 6px;
  border-radius: 14px;
  border: 1px solid var(--border-color);
  background: var(--bg-tertiary);
}

.ui-examples-pager {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: 8px;
}

.ui-examples-pager .btn {
  flex: 0 0 auto;
}

.ui-examples-pager .pill {
  flex: 1;
  text-align: center;
  justify-content: center;
}

.ui-tab-btn {
  appearance: none;
  -webkit-appearance: none;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-secondary);
  padding: 6px 10px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.ui-tab-btn:hover {
  border-color: rgba(255, 109, 31, 0.35);
  color: var(--text-primary);
}

.ui-tab-btn.active {
  background: rgba(255, 109, 31, 0.16);
  border-color: rgba(255, 109, 31, 0.55);
  color: var(--btn-primary);
}

button.link-chip {
  appearance: none;
  -webkit-appearance: none;
  background: rgba(255,255,255,0.8);
  cursor: pointer;
  text-align: left;
}

[data-theme="dark"] button.link-chip {
  background: rgba(255,255,255,0.08);
}

.example-chip {
  width: 100%;
  border-radius: 14px;
  padding: 10px 12px;
  border-color: rgba(255, 109, 31, 0.18);
  position: relative;
}

.example-chip::after {
  content: "➜";
  margin-left: auto;
  opacity: 0.65;
  font-size: 12px;
}

.example-chip-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  line-height: 1.2;
}

.example-chip-title {
  font-weight: 700;
  font-size: 12px;
}

.example-chip-desc {
  font-size: 11px;
  color: var(--text-tertiary);
}

.icon-search-row {
  display: flex;
  gap: 8px;
  align-items: center;
}

.icon-search-row input[type="text"] {
  flex: 1;
}

.icon-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.icon-toolbar-left {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.icon-toolbar select {
  width: auto;
  min-width: 110px;
}

.icon-pager {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: 8px;
}

.icon-pager .pill {
  flex: 1;
  text-align: center;
  justify-content: center;
}

.icon-actions-row {
  display: flex;
  gap: 8px;
  align-items: center;
}

.icon-actions-row .btn {
  flex: 1;
}

.icon-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 6px;
}

.icon-tile {
  appearance: none;
  -webkit-appearance: none;
  border: 1px solid rgba(255, 109, 31, 0.18);
  background: transparent;
  color: var(--text-primary);
  border-radius: 10px;
  padding: 6px 0;
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.15s ease, border-color 0.15s ease, background-color 0.15s ease;
}

[data-theme="dark"] .icon-tile {
  background: transparent;
}

.icon-tile:hover {
  border-color: rgba(255, 109, 31, 0.55);
  transform: translateY(-1px);
}

.icon-tile:active {
  transform: translateY(0);
}

.icon-tile img {
  width: 22px;
  height: 22px;
  object-fit: contain;
  image-rendering: auto;
  display: block;
  /* keep clean/transparent look in the list */
  filter: none;
}
input[type="color"] {
  border-radius: 999px;
  border: none;
  padding: 0;
  width: 32px;
  height: 18px;
  background: transparent;
}
.slider-inline {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
}
.slider-inline input[type="range"] {
  width: 100px;
}

.link-chip .icon {
  font-style: normal;
  font-size: 13px;
}

/* Notification/Alert Variants */
.alert {
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 8px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 13px;
  line-height: 1.4;
}

.alert.success {
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.15);
  color: var(--text-primary);
}

.alert.warning {
  background: rgba(245, 158, 11, 0.08);
  border: 1px solid rgba(245, 158, 11, 0.15);
  color: var(--text-primary);
}

.alert.error {
  background: rgba(249, 115, 115, 0.08);
  border: 1px solid rgba(249, 115, 115, 0.15);
  color: var(--text-primary);
}

.alert.info {
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.15);
  color: var(--text-primary);
}

.alert .alert-icon {
  flex-shrink: 0;
  margin-top: 1px;
}

/* Tooltip */
.tooltip {
  position: relative;
  display: inline-block;
}

.tooltip .tooltip-text {
  visibility: hidden;
  background: var(--bg-primary);
  color: var(--text-primary);
  text-align: center;
  border-radius: 6px;
  padding: 8px 12px;
  position: absolute;
  z-index: 10;
  bottom: 125%;
  left: 50%;
  margin-left: -60px;
  opacity: 0;
  transition: opacity 0.3s;
  font-size: 12px;
  white-space: nowrap;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--border-color);
}

.tooltip:hover .tooltip-text {
  visibility: visible;
  opacity: 1;
}

.tooltip .tooltip-text::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -5px;
  border-width: 5px;
  border-style: solid;
  border-color: var(--bg-primary) transparent transparent transparent;
}

.sidebar-card.note p {
  margin: 0;
  font-size: 12px;
  color: var(--text-secondary);
}

.sidebar-card.note ul {
  margin: 0;
  padding-left: 18px;
  color: var(--text-secondary);
  font-size: 12px;
}
.sidebar-card.note li {
  margin-bottom: 4px;
}

@media (max-width: 1100px) {
  .app-shell {
    flex-direction: column;
  }
  .sidebar {
    width: 100%;
  }
  .workspace {
    flex-direction: column;
  }
  .properties {
    border-left: none;
    border-top: 1px solid var(--border-color);
  }
}

/* Utility Classes */
.fade-in {
  animation: fadeIn 0.3s ease-in-out;
}

.slide-up {
  animation: slideUp 0.3s ease-out;
}

.pulse {
  animation: pulse 2s infinite;
}

.glow {
  animation: glow 2s ease-in-out infinite alternate;
}

.text-truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.d-flex {
  display: flex;
}

.d-inline-flex {
  display: inline-flex;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.align-center {
  align-items: center;
}

.gap-1 { gap: 4px; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }

.m-0 { margin: 0; }
.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mb-1 { margin-bottom: 4px; }
.mb-2 { margin-bottom: 8px; }
.p-1 { padding: 4px; }
.p-2 { padding: 8px; }

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

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

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes glow {
  from { box-shadow: 0 0 5px var(--btn-primary); }
  to { box-shadow: 0 0 20px var(--btn-primary), 0 0 30px var(--btn-primary); }
}

@keyframes pulse {
  0%, 100% {
    box-shadow: 0 0 0 0 var(--outline-color);
  }
  50% {
    box-shadow: 0 0 0 4px rgba(255, 109, 31, 0.3);
  }
}

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

@keyframes shimmer {
  0% { background-position: -200px 0; }
  100% { background-position: calc(200px + 100%) 0; }
}

/* Loading States */
.loading-spinner {
  width: 16px;
  height: 16px;
  border: 2px solid var(--border-color);
  border-top: 2px solid var(--btn-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  display: inline-block;
  flex-shrink: 0;
}

.btn.loading {
  position: relative;
  color: transparent !important;
}

.btn.loading::after {
  content: "";
  position: absolute;
  width: 12px;
  height: 12px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top: 2px solid white;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.loading-shimmer {
  background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--bg-secondary) 50%, var(--bg-tertiary) 75%);
  background-size: 200px 100%;
  animation: shimmer 1.5s infinite;
}

/* Progress Variants */
.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--bg-tertiary);
  border-radius: 4px;
  overflow: hidden;
  position: relative;
}

.progress-fill {
  height: 100%;
  background: var(--btn-primary);
  border-radius: 4px;
  transition: width 0.3s ease;
  position: relative;
}

.progress-fill::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  animation: shimmer 2s infinite;
}

.progress-bar.thin {
  height: 4px;
}

.progress-bar.thick {
  height: 12px;
}

/* Form enhancements */
.form-row {
  display: flex;
  gap: 12px;
  margin-bottom: 12px;
}

.form-row > * {
  flex: 1;
}

@media (max-width: 600px) {
  .form-row {
    flex-direction: column;
    gap: 8px;
  }
}

/* Interactive States */
.interactive {
  cursor: pointer;
  transition: all 0.2s ease;
}

.interactive:hover {
  transform: translateY(-1px);
}

.interactive:active {
  transform: translateY(0);
}

@media (max-width: 720px) {
  body {
    padding: 12px;
  }
  .top-bar {
    flex-direction: column;
    align-items: flex-start;
  }
  .top-right {
    justify-content: flex-start;
  }
}

/* Enhanced Responsive Design */
@media (max-width: 1200px) {
  .app-shell {
    max-width: 100%;
    padding: 12px;
  }
}

@media (max-width: 768px) {
  .top-bar {
    padding: 12px;
    flex-direction: column;
    gap: 8px;
  }
  .top-left {
    width: 100%;
  }
  .top-right {
    width: 100%;
    justify-content: space-between;
  }
  .status-chips {
    flex-wrap: wrap;
    gap: 4px;
  }
  .btn-group {
    flex-wrap: wrap;
  }
  .sidebar-card {
    padding: 8px;
  }
  .properties {
    padding: 8px;
  }
}

@media (max-width: 480px) {
  body {
    padding: 8px;
  }
  .app-shell {
    padding: 8px;
    border-radius: 16px;
  }
  .sidebar, .main {
    border-radius: 12px;
  }
  .preview-frame {
    padding: 8px;
  }
  .btn {
    padding: 6px 12px;
    font-size: 12px;
  }
  .form-row {
    gap: 6px;
  }
}

/* Accessibility & Preferences */
@media (prefers-contrast: high) {
  :root {
    --border-color: #000000;
    --text-primary: #000000;
    --text-secondary: #333333;
    --bg-primary: #ffffff;
  }

  [data-theme="dark"] {
    --border-color: #ffffff;
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --bg-primary: #000000;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* -------------------------------------------------------------------------- */
/* Tools overlay (embedded apps)                                              */
/* -------------------------------------------------------------------------- */

.tool-overlay {
  position: fixed;
  inset: 0;
  display: none;
  padding: 0;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(10px);
  z-index: 1000;
}

.tool-overlay.open {
  display: flex;
  align-items: stretch;
  justify-content: center;
}

.tool-overlay-inner {
  width: 100%;
  max-width: none;
  height: 100vh;
  background: var(--bg-secondary);
  border: 2px solid var(--btn-primary);
  border-radius: 0;
  overflow: hidden;
  box-shadow: var(--card-shadow);
  display: flex;
  flex-direction: column;
}

.tool-overlay-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-secondary);
}

.tool-overlay-title {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

/* Tool switcher (tabs) */
.tool-switcher {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px;
  border-radius: 999px;
  border: 2px solid rgba(255, 109, 31, 0.35);
  background: linear-gradient(
    135deg,
    rgba(255, 109, 31, 0.10),
    rgba(255, 109, 31, 0.04)
  );
  box-shadow:
    0 6px 18px rgba(0, 0, 0, 0.18),
    0 0 0 1px rgba(255, 109, 31, 0.12);
}

.tool-switch-btn {
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-secondary);
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.tool-switch-btn:hover {
  background: rgba(255, 109, 31, 0.16);
  border-color: rgba(255, 109, 31, 0.35);
  color: var(--text-primary);
}

.tool-switch-btn.active {
  background: linear-gradient(135deg, var(--btn-primary), var(--btn-primary-hover));
  border-color: rgba(255, 255, 255, 0.25);
  color: white;
  box-shadow: 0 8px 20px rgba(255, 109, 31, 0.28);
}

.tool-switch-btn.active:hover {
  background: var(--btn-primary-hover);
  border-color: var(--btn-primary-hover);
}

.tool-switch-btn:focus-visible {
  outline: 3px solid rgba(255, 109, 31, 0.45);
  outline-offset: 2px;
}

.tool-overlay-actions {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.tool-overlay-frame {
  flex: 1;
  width: 100%;
  border: none;
  background: var(--bg-primary);
}

.tool-overlay-frames {
  flex: 1;
  position: relative;
  min-height: 0;
}

.tool-overlay-frames .tool-overlay-frame {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.tool-overlay-frame.hidden {
  display: none;
}

html.tool-open,
html.tool-open body {
  overflow: hidden;
}