:root {
  --bg: #0f1419;
  --surface: #1a2332;
  --surface-2: #243044;
  --border: #2d3a4f;
  --text: #e8edf4;
  --text-muted: #8b9cb3;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --success: #22c55e;
  --error: #ef4444;
  --warning: #f59e0b;
  --radius: 10px;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: "Cascadia Code", "Consolas", "Courier New", monospace;
  --scrollbar-size: 8px;
  --scrollbar-track: var(--surface-2);
  --scrollbar-thumb: #3d5068;
  --scrollbar-thumb-hover: var(--accent);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  scrollbar-width: thin;
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

*::-webkit-scrollbar {
  width: var(--scrollbar-size);
  height: var(--scrollbar-size);
}

*::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
  border-radius: 999px;
}

*::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 999px;
  border: 2px solid var(--scrollbar-track);
  background-clip: padding-box;
}

*::-webkit-scrollbar-thumb:hover {
  background: var(--scrollbar-thumb-hover);
  border: 2px solid var(--scrollbar-track);
  background-clip: padding-box;
}

*::-webkit-scrollbar-corner {
  background: var(--scrollbar-track);
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

body:not(.page-body) {
  --editor-cat-width: 84px;
  --editor-palette-width: 242px;
  --editor-blocks-offset: calc(var(--editor-cat-width) + var(--editor-palette-width));
}

.header {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 12px 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.header__row {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  min-width: 0;
}

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

.header__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  min-width: 0;
  text-decoration: none;
  color: var(--text);
}

.header__nav-panel {
  flex-shrink: 0;
  padding: 6px 10px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.lang-switch {
  display: inline-flex;
  gap: 2px;
  padding: 2px;
  border-radius: 8px;
  background: var(--surface-1);
  border: 1px solid var(--border);
}

.lang-switch__btn {
  min-width: 2rem;
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: var(--text-muted);
  text-align: center;
}

.lang-switch__btn:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

.lang-switch__btn.is-active {
  color: #93c5fd;
  background: rgba(59, 130, 246, 0.18);
}
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.header__nav-panel .site-nav {
  flex-wrap: nowrap;
}

.header__nav-panel .site-nav__link.is-active {
  background: rgba(59, 130, 246, 0.18);
  color: #93c5fd;
  font-weight: 600;
}

.btn--nav-login {
  font-size: 0.85rem;
  padding: 8px 14px;
}

.header__logo {
  font-size: 2rem;
}

.header h1 {
  font-size: 1.25rem;
  font-weight: 700;
}

.header__subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  min-width: 0;
}

.select {
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 12px;
  font-size: 0.9rem;
  min-width: 200px;
}

.btn {
  border: none;
  border-radius: var(--radius);
  padding: 8px 16px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
}

.btn:active {
  transform: scale(0.98);
}

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

.btn--primary:hover {
  background: var(--accent-hover);
}

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

.btn--ghost:hover {
  background: var(--surface-2);
  color: var(--text);
}

.btn--danger {
  background: var(--danger, #dc2626);
  color: #fff;
  border: 1px solid transparent;
}

.btn--danger:hover {
  filter: brightness(1.08);
}

.btn--small.btn--danger {
  background: var(--danger, #dc2626);
  color: #fff;
  border-color: transparent;
}

.btn--small.btn--danger:hover {
  color: #fff;
  filter: brightness(1.08);
}

.btn--small {
  padding: 4px 10px;
  font-size: 0.75rem;
  background: var(--surface-2);
  color: var(--text-muted);
  border: 1px solid var(--border);
}

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

.btn--icon {
  width: 34px;
  height: 34px;
  min-width: 34px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  line-height: 1;
}

.btn--icon.btn--primary {
  font-size: 0.95rem;
}

.layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  flex: 1;
  min-height: 0;
  gap: 0;
}

.editor-area {
  display: flex;
  flex: 1;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
}

.editor-main {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
}

.editor-toolbar {
  flex-shrink: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 8px 12px 8px calc(var(--editor-blocks-offset) + 12px);
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
  min-height: 48px;
}

/* --- Компактная панель редактора --- */
.workspace-bar {
  flex-shrink: 0;
  display: block;
  padding: 6px 12px 6px calc(var(--editor-blocks-offset) + 10px);
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
  min-height: 44px;
  overflow: visible;
  z-index: 50;
  position: relative;
  isolation: isolate;
}

.workspace-bar__cluster {
  display: flex;
  align-items: stretch;
  flex-wrap: nowrap;
  gap: 8px;
  min-width: 0;
  width: 100%;
  overflow: hidden;
}

.picker-group {
  display: flex;
  align-items: stretch;
  flex: 1 1 0;
  min-width: 0;
  max-width: 100%;
  min-height: 36px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.picker-group[hidden],
.task-strip[hidden] {
  display: none !important;
}

.picker-group__item {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: center;
  gap: 1px;
  padding: 4px 12px 5px;
  min-width: 0;
  position: relative;
}

.picker-group__item + .picker-group__item {
  border-left: 1px solid var(--border);
}

.picker-group__item--topic {
  flex: 0 1 42%;
  min-width: 0;
  max-width: 190px;
}

.picker-group__item--task {
  flex: 1 1 0;
  min-width: 0;
  max-width: none;
}

.picker-group__item:focus-within {
  background: rgba(59, 130, 246, 0.08);
}

.picker-group__label {
  font-size: 0.6rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  white-space: nowrap;
  flex-shrink: 0;
  user-select: none;
  line-height: 1;
}

/* Кастомный выпадающий список */
.cselect {
  position: relative;
  width: 100%;
  min-width: 0;
}

.cselect__trigger {
  display: flex;
  align-items: center;
  gap: 6px;
  width: 100%;
  min-width: 0;
  padding: 0;
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 0.8rem;
  font-weight: 500;
  line-height: 1.25;
  text-align: left;
  cursor: pointer;
}

.cselect__trigger:focus {
  outline: none;
}

.cselect__trigger:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 3px;
}

.cselect__value {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cselect__value.is-placeholder {
  color: var(--text-muted);
  font-weight: 400;
}

.cselect__chevron {
  flex-shrink: 0;
  width: 12px;
  height: 12px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12' fill='none'%3E%3Cpath d='M3 4.5L6 7.5L9 4.5' stroke='%2394a3b8' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 12px;
  transition: transform 0.15s ease;
}

.cselect.is-open .cselect__chevron {
  transform: rotate(180deg);
}

.cselect.is-open .cselect__trigger {
  color: #fff;
}

.cselect.is-disabled .cselect__trigger {
  opacity: 0.5;
  cursor: not-allowed;
}

.cselect__menu {
  position: absolute;
  top: calc(100% + 6px);
  left: -12px;
  z-index: 200;
  margin: 0;
  padding: 4px;
  list-style: none;
  min-width: calc(100% + 24px);
  width: max-content;
  max-width: min(380px, calc(100vw - 48px));
  max-height: 280px;
  overflow-y: auto;
  overflow-x: hidden;
  background: #1a2332;
  border: 1px solid rgba(148, 163, 184, 0.28);
  border-radius: calc(var(--radius) + 2px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(0, 0, 0, 0.2);
}

.cselect__menu--fixed {
  position: fixed !important;
  z-index: 1000;
  right: auto;
}

.picker-group__item--task .cselect__menu:not(.cselect__menu--fixed) {
  left: auto;
  right: -12px;
}

.cselect__menu[hidden] {
  display: none !important;
}

.cselect__option {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 12px;
  border-radius: calc(var(--radius) - 2px);
  font-size: 0.84rem;
  line-height: 1.35;
  color: var(--text);
  cursor: pointer;
  white-space: normal;
  word-break: break-word;
}

.cselect__option-label {
  flex: 1;
  min-width: 0;
}

.cselect__check {
  flex-shrink: 0;
  width: 14px;
  height: 14px;
  margin-top: 2px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 14 14' fill='none'%3E%3Cpath d='M3 7.2L5.8 10L11 4' stroke='%2322c55e' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 14px;
}

.cselect__trigger .cselect__check {
  margin-top: 0;
}

.cselect__option.is-placeholder {
  color: var(--text-muted);
  font-style: italic;
}

.cselect__option.is-disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.cselect__option.is-selected {
  background: rgba(59, 130, 246, 0.18);
  color: #e0edff;
  font-weight: 600;
}

.cselect__option.is-highlighted,
.cselect__option:hover:not(.is-disabled) {
  background: var(--accent);
  color: #fff;
}

.cselect__option.is-selected.is-highlighted,
.cselect__option.is-selected:hover:not(.is-disabled) {
  background: var(--accent-hover, #2563eb);
  color: #fff;
}

.cselect__option.is-highlighted .cselect__check,
.cselect__option:hover:not(.is-disabled) .cselect__check {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 14 14' fill='none'%3E%3Cpath d='M3 7.2L5.8 10L11 4' stroke='%23ffffff' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}

.picker-group__more {
  flex-shrink: 0;
  align-self: stretch;
  display: inline-flex;
  align-items: center;
  margin: 0;
  padding: 0 12px;
  border: none !important;
  border-left: 1px solid var(--border) !important;
  border-radius: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
}

.picker-group__more:hover {
  background: rgba(59, 130, 246, 0.12) !important;
}

.picker-group__more[hidden] {
  display: none !important;
}

.mode-switch {
  display: inline-flex;
  align-self: stretch;
  align-items: center;
  padding: 3px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  gap: 2px;
  flex-shrink: 0;
}

.mode-switch__btn {
  padding: 6px 12px;
  border: none;
  background: transparent;
  border-radius: calc(var(--radius) - 2px);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  white-space: nowrap;
}

.mode-switch__btn:hover {
  color: var(--text);
}

.mode-switch__btn.is-active {
  background: var(--accent);
  color: #fff;
}

.mode-badge {
  flex-shrink: 0;
}

.mode-badge__label {
  display: inline-block;
  padding: 5px 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
}

.task-strip {
  pointer-events: auto;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  max-height: 22vh;
  overflow-y: auto;
}

.task-strip.is-collapsed {
  max-height: none;
  overflow: visible;
}

.task-strip__header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: rgba(0, 0, 0, 0.12);
}

.task-strip__collapse {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  padding: 0;
  line-height: 1;
  font-size: 0.65rem;
  color: var(--text-muted);
  background: var(--surface-2);
  border: 1px solid var(--border);
}

.task-strip__collapse:hover {
  color: var(--text);
  border-color: var(--accent);
}

.task-strip__titles {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px 10px;
  min-width: 0;
  flex: 1;
}

.task-strip__title {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.25;
  margin: 0;
}

.task-strip__body {
  padding: 6px 12px 8px;
}

.task-strip.is-collapsed .task-strip__body {
  display: none;
}

.task-strip.is-collapsed .task-strip__header {
  border-bottom: none;
}

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

.editor-toolbar__actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-left: auto;
}

.editor-toolbar .select {
  min-width: 0;
  flex: 0 1 auto;
}

.editor-toolbar .select--wide {
  min-width: 180px;
  max-width: 280px;
  flex: 1 1 200px;
}

.task-banner {
  flex-shrink: 0;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 10px 16px 12px;
  max-height: 40vh;
  overflow-y: auto;
}

/* legacy aliases */
.task-banner.is-collapsed,
.task-strip.is-collapsed {
  max-height: none;
  overflow: visible;
}

.task-condition {
  font-size: 0.88rem;
  line-height: 1.45;
  color: var(--text);
  white-space: pre-wrap;
  margin: 0;
}

.task-meta {
  font-size: 0.72rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.task-meta:empty {
  display: none;
}

.btn--topic-more {
  background: rgba(59, 130, 246, 0.15) !important;
  color: var(--accent) !important;
  border-color: rgba(59, 130, 246, 0.35) !important;
  font-weight: 600;
}

.btn--topic-more:hover {
  background: rgba(59, 130, 246, 0.28) !important;
  color: #fff !important;
}

.task-hint {
  margin-top: 6px;
  padding-top: 6px;
  border-top: 1px dashed var(--border);
  font-size: 0.82rem;
  color: var(--warning);
  line-height: 1.45;
  white-space: pre-wrap;
}

.task-nav {
  display: flex;
  gap: 4px;
  align-items: center;
  flex-shrink: 0;
}

.task-nav .btn--small {
  min-width: 28px;
  height: 28px;
  padding: 0 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn--check {
  background: var(--success) !important;
  color: #fff !important;
}

.btn--check:hover {
  filter: brightness(1.08);
}

.btn--my-solution {
  white-space: nowrap;
  color: var(--success);
  border-color: rgba(34, 197, 94, 0.45);
}

.btn--my-solution:hover {
  color: #fff;
  background: rgba(34, 197, 94, 0.22);
  border-color: var(--success);
}

.select--wide {
  min-width: 260px;
  max-width: 320px;
}

/* --- Blockly shell: Scratch-панель + колонка рабочей области --- */
.blockly-shell {
  --palette-width: var(--editor-palette-width, 242px);
  --cat-width: var(--editor-cat-width, 84px);
  --palette-title-height: 38px;
  --workspace-top-offset: 0px;
  --active-cat-color: #4c97ff;
  position: relative;
  flex: 1;
  min-width: 0;
  min-height: 0;
  background: #111827;
  overflow: hidden;
}

.blocks-panel {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  display: flex;
  flex-shrink: 0;
  z-index: 30;
  pointer-events: none;
}

.scratch-categories,
#scratchCategories,
.scratch-cat {
  pointer-events: auto;
}

.blocks-palette {
  display: flex;
  flex-direction: column;
  width: var(--palette-width);
  min-width: var(--palette-width);
  max-width: var(--palette-width);
  min-height: 0;
  background: rgba(0, 0, 0, 0.12);
  border-right: 1px solid var(--border);
  pointer-events: none;
}

.blocks-palette__flyout {
  flex: 1;
  min-height: 0;
}

.workspace-overlay {
  position: absolute;
  left: calc(var(--cat-width) + var(--palette-width));
  top: 0;
  right: 0;
  z-index: 26;
  pointer-events: none;
}

.task-strip,
.task-nav,
.task-strip__collapse {
  pointer-events: auto;
}

.blockly-shell .blocklyDiv {
  position: absolute !important;
  left: calc(var(--cat-width) + var(--palette-width)) !important;
  top: var(--workspace-top-offset) !important;
  width: calc(100% - var(--cat-width) - var(--palette-width)) !important;
  height: calc(100% - var(--workspace-top-offset)) !important;
}

.blockly-shell .blocklyBlockDragSurface {
  z-index: 40;
}

#scratchCategories {
  flex-shrink: 0;
  width: var(--cat-width);
  min-width: var(--cat-width);
  max-width: var(--cat-width);
  height: 100%;
  overflow-y: auto;
  overflow-x: hidden;
}

#scratchPaletteTitle {
  flex-shrink: 0;
}

.scratch-categories {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 8px 5px;
  background: #141618;
  border-right: 1px solid var(--border);
  overflow-y: auto;
  overflow-x: hidden;
}

.scratch-cat {
  --cat-color: #4a6278;
  width: 100%;
  height: 56px;
  min-height: 56px;
  max-height: 56px;
  padding: 5px 4px;
  border: none;
  border-left: 3px solid transparent;
  border-radius: 3px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  transition: background 0.12s, color 0.12s, border-color 0.12s;
  font-family: var(--mono);
  flex-shrink: 0;
}

.scratch-cat:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.scratch-cat.is-active {
  background: rgba(255, 255, 255, 0.06);
  border-left-color: var(--cat-color);
  color: var(--cat-color);
  box-shadow: none;
}

.scratch-cat__icon {
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1;
  font-family: var(--mono);
}

.scratch-cat__label {
  font-size: 0.68rem;
  line-height: 1.15;
  text-align: center;
  width: 100%;
  max-width: 100%;
  overflow: hidden;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  white-space: normal;
  opacity: 0.85;
}

.scratch-cat.is-active .scratch-cat__label {
  opacity: 1;
}

.scratch-palette__title,
#scratchPaletteTitle {
  padding: 10px 12px 8px;
  font-size: 0.88rem;
  font-weight: 700;
  border-bottom: 3px solid var(--active-cat-color);
  background: rgba(0, 0, 0, 0.15);
}

/* Flyout: фиксированная ширина палитры для всех категорий */
.blockly-shell .blocklyFlyout {
  width: var(--palette-width) !important;
  min-width: var(--palette-width) !important;
  max-width: var(--palette-width) !important;
  top: var(--palette-title-height) !important;
  height: calc(100% - var(--palette-title-height)) !important;
  z-index: 28;
  pointer-events: auto !important;
}

.panel-resize-handle {
  width: 5px;
  flex-shrink: 0;
  cursor: col-resize;
  background: var(--border);
  transition: background 0.15s;
  z-index: 2;
}

.panel-resize-handle:hover,
.panel-resize-handle.is-active {
  background: var(--accent);
}

.panel {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  gap: 8px;
  min-width: 0;
  flex-wrap: wrap;
}

.panel__header h2 {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.panel__header-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.panel__header-actions .btn--small {
  padding: 4px 8px;
  font-size: 0.72rem;
}

.panel__header-actions .btn--icon {
  width: 28px;
  height: 28px;
  min-width: 28px;
  padding: 0;
  font-size: 1.15rem;
  line-height: 1;
}

.code-editor-wrap {
  position: relative;
  flex: 1;
  min-height: 120px;
  background: #111827;
}

.code-editor-wrap[hidden] {
  display: none !important;
}

.code-editor-wrap:focus-within {
  box-shadow: inset 0 0 0 1px rgba(59, 130, 246, 0.45);
}

.code-editor-highlight,
.code-editor-input {
  margin: 0;
  padding: 14px 16px;
  overflow: auto;
  font-family: var(--mono);
  font-size: 0.82rem;
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
  tab-size: 4;
  border: none;
  box-sizing: border-box;
}

.code-editor-highlight {
  position: absolute;
  inset: 0;
  pointer-events: none;
  color: #a5f3fc;
}

.code-editor-highlight code {
  display: block;
  min-height: 100%;
}

.code-editor-input {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  min-height: 120px;
  height: 100%;
  outline: none;
  resize: vertical;
  background: transparent;
  color: transparent;
  caret-color: #a5f3fc;
}

.py-hl-keyword {
  color: #569cd6;
  font-weight: 500;
}

.py-hl-builtin {
  color: #4ec9b0;
}

.py-hl-string {
  color: #ce9178;
}

.py-hl-number {
  color: #b5cea8;
}

.py-hl-comment {
  color: #6a9955;
  font-style: italic;
}

.py-hl-op {
  color: #d4d4d4;
}

.py-hl-name {
  color: #9cdcfe;
}

/* Синхронная подсветка: блок ↔ код */
.py-sync-hl {
  background: rgba(106, 130, 152, 0.35);
  outline: 1px solid rgba(106, 130, 152, 0.7);
  border-radius: 2px;
  box-shadow: 0 0 6px rgba(106, 130, 152, 0.25);
}

.py-sync-hl--keyword {
  background: rgba(86, 156, 214, 0.28);
  outline: 1px solid rgba(86, 156, 214, 0.65);
  box-shadow: 0 0 8px rgba(86, 156, 214, 0.2);
}

.py-sync-hl--drag {
  background: rgba(139, 115, 64, 0.3);
  outline: 1px dashed rgba(139, 115, 64, 0.8);
  animation: py-sync-pulse 1.2s ease-in-out infinite;
}

@keyframes py-sync-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.55; }
}

.code-editor:not([hidden]) {
  display: block;
  width: 100%;
  min-height: 120px;
  border: none;
  outline: none;
  resize: vertical;
  box-sizing: border-box;
  font-family: var(--mono);
  tab-size: 4;
}

.code-editor:focus {
  box-shadow: inset 0 0 0 1px rgba(59, 130, 246, 0.45);
}

.hint {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.blocklyToolboxDiv,
.blocklyToolbox {
  width: var(--cat-width) !important;
  min-width: var(--cat-width) !important;
  max-width: var(--cat-width) !important;
  background: transparent !important;
  pointer-events: none !important;
}

.blocklyToolboxContents {
  width: var(--cat-width) !important;
  overflow: hidden !important;
  pointer-events: none !important;
}

.blocklyTreeRoot,
.blocklyToolboxCategory,
.blocklyToolboxCategoryGroup {
  display: none !important;
}

.blocklyFlyoutBackground {
  fill: #1e293b !important;
}

.blocklyMainBackground {
  stroke: none !important;
}

/* Вставки в блоках — поля, числа, текст, выпадающие списки */
.blocklySvg .blocklyFieldRect,
.blocklySvg rect.blocklyFieldRect {
  fill: rgba(15, 23, 42, 0.55) !important;
  stroke: rgba(255, 255, 255, 0.42) !important;
  stroke-width: 1px !important;
}

.blocklySvg .blocklyEditableField,
.blocklySvg .blocklyEditableText,
.blocklySvg .blocklyNonEditableField,
.blocklySvg .blocklyNonEditableText,
.blocklySvg .blocklyFieldLabel,
.blocklySvg .blocklyText.blocklyFieldText {
  fill: #ffffff !important;
  font-size: 11px !important;
  font-weight: 600 !important;
  font-family: "Segoe UI", system-ui, sans-serif !important;
}

.blocklySvg .blocklyText {
  fill: #ffffff !important;
  font-size: 11px !important;
  font-weight: 600 !important;
}

.blocklySvg .blocklyText.blocklyDropdownText {
  fill: #000000 !important;
}

/* Вложенные блоки-вставки в гнёздах (числа, переменные, выражения) */
.blocklySvg .blocklyDraggable .blocklyDraggable .blocklyText,
.blocklySvg .blocklyDraggable .blocklyDraggable .blocklyEditableField,
.blocklySvg .blocklyDraggable .blocklyDraggable .blocklyEditableText,
.blocklySvg .blocklyDraggable .blocklyDraggable .blocklyFieldLabel {
  font-size: 11px !important;
  font-weight: 600 !important;
}

.blocklySvg .blocklyFieldRect.blocklyDropdownRect,
.blocklySvg rect.blocklyFieldRect.blocklyDropdownRect {
  fill: rgba(255, 255, 255, 0.94) !important;
  stroke: rgba(0, 0, 0, 0.18) !important;
  stroke-width: 1px !important;
}

.blocklySvg .blocklyDropdownText,
.blocklySvg .blocklyText.blocklyDropdownText,
.blocklySvg .blocklyDraggable .blocklyDraggable .blocklyDropdownText,
.blocklySvg .blocklyDraggable .blocklyDraggable .blocklyText.blocklyDropdownText {
  fill: #000000 !important;
  font-size: 11px !important;
  font-weight: 600 !important;
  font-family: "Segoe UI", system-ui, sans-serif !important;
}

.blocklyDropDownDiv {
  font-size: 13px !important;
  font-weight: 600 !important;
}

.blocklyDropDownDiv .blocklyMenuItemContent {
  color: #000000 !important;
}

.blocklyDropDownDiv .blocklyMenuItemHighlight .blocklyMenuItemContent {
  color: #000000 !important;
}

.blocklyDropDownDiv .blocklyMenuItemSelected .blocklyMenuItemContent {
  color: #000000 !important;
}

/* Блоки вне цепочки «Начало → … → Конец» */
.blocklyWorkspace .blocklyDraggable.py-block-detached {
  opacity: 0.78;
  filter: grayscale(0.45);
}

.blocklyWorkspace .blocklyDraggable.py-block-detached > .blocklyBlockBackground,
.blocklyWorkspace .blocklyDraggable.py-block-detached > .blocklyPath.blocklyBlockBackground,
.blocklyWorkspace .blocklyDraggable.py-block-detached > .blocklyPath:first-child {
  fill: #52525b !important;
  stroke: #3f3f46 !important;
  stroke-width: 1.5px !important;
}

.blocklyWorkspace .blocklyDraggable.py-block-detached .blocklyPathLight,
.blocklyWorkspace .blocklyDraggable.py-block-detached .blocklyPathDark,
.blocklyWorkspace .blocklyDraggable.py-block-detached .blocklyPath {
  fill: #52525b !important;
  stroke: #3f3f46 !important;
}

.blocklyWorkspace .blocklyDraggable.py-block-detached .blocklyFieldRect,
.blocklyWorkspace .blocklyDraggable.py-block-detached rect.blocklyFieldRect {
  fill: rgba(24, 24, 27, 0.75) !important;
  stroke: rgba(113, 113, 122, 0.5) !important;
}

.blocklyWorkspace .blocklyDraggable.py-block-detached .blocklyFieldRect.blocklyDropdownRect,
.blocklyWorkspace .blocklyDraggable.py-block-detached rect.blocklyFieldRect.blocklyDropdownRect {
  fill: rgba(255, 255, 255, 0.94) !important;
  stroke: rgba(0, 0, 0, 0.18) !important;
}

.blocklyWorkspace .blocklyDraggable.py-block-detached .blocklyText,
.blocklyWorkspace .blocklyDraggable.py-block-detached .blocklyEditableField,
.blocklyWorkspace .blocklyDraggable.py-block-detached .blocklyEditableText,
.blocklyWorkspace .blocklyDraggable.py-block-detached .blocklyFieldLabel {
  fill: #a1a1aa !important;
  opacity: 0.9;
}

.blocklyWorkspace .blocklyDraggable.py-block-detached .blocklyDropdownText {
  fill: #000000 !important;
  opacity: 1;
}

/* Рамка программы — блоки Начало / Конец */
.py-frame-start > .blocklyBlockBackground,
.py-frame-start > .blocklyPath.blocklyBlockBackground {
  stroke: #bbf7d0 !important;
  stroke-width: 2px !important;
}

.py-frame-start .blocklyText,
.py-frame-start .blocklyEditableText,
.py-frame-start .blocklyEditableField,
.py-frame-start .blocklyFieldLabel,
.py-frame-start .blocklyFlyoutLabelText {
  fill: #ffffff !important;
  font-weight: 700 !important;
  font-size: 11px !important;
  letter-spacing: 0.04em;
  filter: none !important;
}

.py-frame-end > .blocklyBlockBackground,
.py-frame-end > .blocklyPath.blocklyBlockBackground {
  stroke: #fed7aa !important;
  stroke-width: 2px !important;
}

.py-frame-end.py-frame-end-parked > .blocklyBlockBackground,
.py-frame-end.py-frame-end-parked > .blocklyPath.blocklyBlockBackground {
  stroke-dasharray: 6 4 !important;
  opacity: 0.88;
}

.py-frame-end .blocklyText,
.py-frame-end .blocklyEditableText,
.py-frame-end .blocklyEditableField,
.py-frame-end .blocklyFieldLabel,
.py-frame-end .blocklyFlyoutLabelText {
  fill: #ffffff !important;
  font-weight: 700 !important;
  font-size: 11px !important;
  letter-spacing: 0.04em;
  filter: none !important;
}

/* Пошаговая отладка — только обводка, заливка и текст не меняются */
g.py-debug-highlight > .blocklyBlockBackground,
g.py-debug-highlight > .blocklyPath.blocklyBlockBackground,
g.py-debug-highlight > .blocklyPath:first-child,
.blocklyDraggable.py-debug-highlight > .blocklyBlockBackground,
.blocklyDraggable.py-debug-highlight > .blocklyPath.blocklyBlockBackground,
.blocklyDraggable.py-debug-highlight > .blocklyPath:first-child {
  stroke: #fbbf24 !important;
  stroke-width: 2.5px !important;
  filter: none !important;
}

g.py-debug-highlight .blocklyDropdownText,
.blocklyDraggable.py-debug-highlight .blocklyDropdownText {
  fill: #000000 !important;
  opacity: 1 !important;
  filter: none !important;
}

g.py-debug-highlight .blocklyText,
g.py-debug-highlight .blocklyEditableText,
g.py-debug-highlight .blocklyEditableField,
g.py-debug-highlight .blocklyFieldLabel,
.blocklyDraggable.py-debug-highlight .blocklyText,
.blocklyDraggable.py-debug-highlight .blocklyEditableText,
.blocklyDraggable.py-debug-highlight .blocklyEditableField,
.blocklyDraggable.py-debug-highlight .blocklyFieldLabel {
  fill: #ffffff !important;
  opacity: 1 !important;
  filter: none !important;
}

/* Отключаем стандартную подсветку Blockly — она меняет заливку и портит читаемость */
.blocklyWorkspace .blocklyDraggable.blocklyHighlighted > .blocklyBlockBackground,
.blocklyWorkspace .blocklyDraggable.blocklyHighlighted > .blocklyPath {
  filter: none !important;
  opacity: 1 !important;
  stroke-width: 2px !important;
  stroke: #fbbf24 !important;
}

.blocklyWorkspace .blocklyDraggable.blocklyHighlighted .blocklyDropdownText {
  fill: #000000 !important;
  opacity: 1 !important;
  filter: none !important;
}

.blocklyWorkspace .blocklyDraggable.blocklyHighlighted .blocklyText,
.blocklyWorkspace .blocklyDraggable.blocklyHighlighted .blocklyEditableText,
.blocklyWorkspace .blocklyDraggable.blocklyHighlighted .blocklyEditableField,
.blocklyWorkspace .blocklyDraggable.blocklyHighlighted .blocklyFieldLabel {
  fill: #ffffff !important;
  opacity: 1 !important;
  filter: none !important;
}

.sidebar {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.sidebar-runbar {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 6px;
  padding: 8px 12px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
}

.sidebar-runbar .btn--icon {
  flex: 0 0 auto;
}

.sidebar-runbar .btn--active {
  color: var(--accent);
  background: rgba(59, 130, 246, 0.14);
  box-shadow: inset 0 0 0 1px rgba(59, 130, 246, 0.35);
}

.panel--code {
  flex: 1;
  min-height: 180px;
  border-bottom: 1px solid var(--border);
}

.panel--code-editing .panel__header {
  justify-content: flex-end;
}

.panel--output {
  flex: 1;
  min-height: 140px;
  border-bottom: 1px solid var(--border);
}

.panel--output[hidden] {
  display: none !important;
}

.panel__header-badges {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

/* --- Машина времени: модалка --- */
body.tm-modal-open {
  overflow: hidden;
}

.tm-modal {
  position: fixed;
  inset: 0;
  z-index: 9200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: rgba(8, 12, 18, 0.55);
  backdrop-filter: blur(3px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease;
}

.tm-modal[hidden] {
  display: none !important;
}

.tm-modal.tm-modal--open {
  opacity: 1;
  pointer-events: auto;
}

.tm-modal__dialog {
  width: min(760px, calc(100vw - 32px));
  height: min(560px, calc(100vh - 32px));
  max-height: calc(100vh - 32px);
  display: flex;
  flex-direction: column;
  background: linear-gradient(165deg, #1c2738 0%, #152033 48%, #121a28 100%);
  border: 1px solid rgba(96, 165, 250, 0.28);
  border-radius: 14px;
  box-shadow:
    0 24px 64px rgba(0, 0, 0, 0.55),
    0 0 0 1px rgba(255, 255, 255, 0.03) inset;
  overflow: hidden;
  transform: translateY(18px) scale(0.97);
  opacity: 0;
  transition:
    transform 0.28s cubic-bezier(0.22, 1, 0.36, 1),
    opacity 0.22s ease;
}

.tm-modal.tm-modal--open .tm-modal__dialog {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.tm-modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
  flex-shrink: 0;
}

.tm-modal__heading {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.tm-modal__heading h2 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 650;
  letter-spacing: 0.01em;
}

.tm-modal__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: rgba(59, 130, 246, 0.16);
  color: #93c5fd;
  font-size: 0.85rem;
}

.tm-modal.tm-modal--open .tm-modal__icon {
  animation: tm-icon-pulse 2.4s ease-in-out infinite;
}

@keyframes tm-icon-pulse {
  0%,
  100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(59, 130, 246, 0);
  }
  50% {
    transform: scale(1.06);
    box-shadow: 0 0 0 6px rgba(59, 130, 246, 0.12);
  }
}

.tm-modal__step-badge {
  flex-shrink: 0;
}

.tm-modal__step-badge--pulse {
  animation: tm-badge-pulse 0.45s ease;
}

@keyframes tm-badge-pulse {
  0% {
    transform: scale(1);
  }
  40% {
    transform: scale(1.08);
    background: rgba(250, 204, 21, 0.28);
  }
  100% {
    transform: scale(1);
  }
}

.tm-modal__close {
  width: 34px;
  height: 34px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--text-muted);
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  flex-shrink: 0;
}

.tm-modal__close:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.tm-modal__stage {
  display: flex;
  flex-direction: column;
  min-height: 0;
  flex: 1;
}

.tm-modal__stage--forward .tm-modal__grid,
.tm-modal__stage--back .tm-modal__grid {
  animation-duration: 0.32s;
  animation-timing-function: ease;
  animation-fill-mode: both;
}

.tm-modal__stage--forward .tm-modal__grid {
  animation-name: tm-step-forward;
}

.tm-modal__stage--back .tm-modal__grid {
  animation-name: tm-step-back;
}

@keyframes tm-step-forward {
  from {
    opacity: 0.55;
    transform: translateX(12px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes tm-step-back {
  from {
    opacity: 0.55;
    transform: translateX(-12px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.tm-modal__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  grid-template-rows: minmax(0, 1fr);
  gap: 0;
  min-height: 0;
  flex: 1 1 auto;
  overflow: hidden;
}

.tm-modal__code,
.tm-modal__side {
  min-height: 0;
  height: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.tm-modal__code {
  border-right: 1px solid var(--border);
}

.tm-modal__section-title,
.tm-modal__memory .memory-viz__title,
.debug-output__title {
  margin: 0;
  padding: 8px 14px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
  flex-shrink: 0;
}

.tm-modal__code-preview {
  flex: 1 1 auto;
  min-height: 0;
  margin: 0;
  border-radius: 0;
  background: #141b26;
  overflow: auto;
}

.tm-modal__side {
  overflow: hidden;
}

.tm-modal__memory {
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
  min-height: 0;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

.tm-modal__memory .memory-viz__vars {
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
}

.tm-modal__footer {
  flex-shrink: 0;
  border-top: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.18);
}

.debug-output {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.debug-output-console {
  margin: 0;
  height: 112px;
  max-height: 112px;
  padding: 10px 14px;
  overflow: auto;
  font-family: var(--mono);
  font-size: 0.78rem;
  white-space: pre-wrap;
  word-break: break-word;
  background: #141b26;
}

.debug-controls {
  display: flex;
  gap: 8px;
  padding: 10px 16px 6px;
  flex-wrap: wrap;
  align-items: center;
}

.debug-vars {
  flex: 1;
  overflow: auto;
  padding: 10px 16px;
  font-family: var(--mono);
  font-size: 0.78rem;
}

.debug-vars__empty {
  color: var(--text-muted);
  font-family: var(--font);
  font-size: 0.85rem;
}

.debug-var {
  display: flex;
  gap: 8px;
  padding: 4px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  line-height: 1.4;
}

.debug-var__name {
  color: #93c5fd;
  min-width: 72px;
  flex-shrink: 0;
}

.debug-var__value {
  color: #86efac;
  word-break: break-word;
}

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

.debug-controls .btn--active {
  color: var(--accent);
  background: rgba(59, 130, 246, 0.14);
  box-shadow: inset 0 0 0 1px rgba(59, 130, 246, 0.35);
}

.time-machine__speed {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.time-machine__speed-select {
  font-size: 0.75rem;
  padding: 4px 8px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
}

.time-machine__timeline {
  position: relative;
  padding: 4px 16px 12px;
  flex-shrink: 0;
}

.tm-modal__timeline-track {
  position: absolute;
  left: 16px;
  right: 16px;
  top: 50%;
  height: 4px;
  margin-top: -6px;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.18);
  pointer-events: none;
  overflow: hidden;
}

.tm-modal__timeline-fill {
  height: 100%;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, #3b82f6, #38bdf8);
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.45);
  transition: width 0.28s ease;
}

.time-machine__timeline-input {
  position: relative;
  z-index: 1;
  width: 100%;
  accent-color: var(--accent);
  cursor: pointer;
  background: transparent;
}

.time-machine__timeline-input:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.time-machine__memory {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.time-machine__memory .memory-viz__vars {
  min-height: 0;
}

.debug-output--active {
  animation: debug-output-flash 0.6s ease;
}

@keyframes debug-output-flash {
  0%,
  100% {
    box-shadow: none;
  }
  40% {
    box-shadow: inset 0 0 0 1px rgba(96, 165, 250, 0.45);
    background: rgba(59, 130, 246, 0.06);
  }
}

.panel--code--debug .code-preview mark.code-line--active,
.tm-modal__code-preview mark.code-line--active {
  background: rgba(250, 204, 21, 0.22);
  box-shadow: inset 3px 0 0 #facc15;
}

.tm-modal__code-preview mark.code-line--active.code-line--enter {
  animation: tm-line-enter 0.45s ease;
}

@keyframes tm-line-enter {
  0% {
    background: rgba(250, 204, 21, 0.55);
  }
  100% {
    background: rgba(250, 204, 21, 0.22);
  }
}

g.py-debug-highlight--pulse {
  animation: tm-block-pulse 0.55s ease;
}

@keyframes tm-block-pulse {
  0% {
    filter: drop-shadow(0 0 0 rgba(251, 191, 36, 0));
  }
  40% {
    filter: drop-shadow(0 0 10px rgba(251, 191, 36, 0.85));
  }
  100% {
    filter: drop-shadow(0 0 0 rgba(251, 191, 36, 0));
  }
}

@media (prefers-reduced-motion: reduce) {
  .tm-modal,
  .tm-modal__dialog,
  .tm-modal__stage--forward .tm-modal__grid,
  .tm-modal__stage--back .tm-modal__grid,
  .tm-modal__step-badge--pulse,
  .tm-modal__timeline-fill,
  .tm-modal__code-preview mark.code-line--active.code-line--enter,
  .tm-modal.tm-modal--open .tm-modal__icon,
  g.py-debug-highlight--pulse,
  .memory-var--changed,
  .memory-var--new,
  .debug-output--active {
    animation: none !important;
    transition: none !important;
  }
}

/* --- Машина времени: память --- */
.memory-viz__title {
  margin: 0;
  padding: 8px 12px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
}

.memory-viz__vars {
  padding: 10px 12px;
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
  gap: 8px;
}

.memory-viz__empty {
  color: var(--text-muted);
  font-size: 0.8rem;
  line-height: 1.4;
  margin: 0;
}

.memory-var {
  position: relative;
  min-width: 120px;
  max-width: 100%;
  flex: 1 1 140px;
  padding: 8px 10px 8px;
  border-radius: 10px;
  border: 1px solid rgba(74, 222, 128, 0.25);
  background: rgba(20, 83, 45, 0.22);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.memory-var--ref {
  border-color: rgba(129, 140, 248, 0.35);
  background: rgba(49, 46, 129, 0.22);
}

.memory-var--changed {
  animation: memory-var-flash 0.75s ease;
}

.memory-var--new {
  animation: memory-var-new 0.55s ease;
}

@keyframes memory-var-new {
  from {
    opacity: 0;
    transform: scale(0.92);
    border-color: rgba(74, 222, 128, 0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.memory-var__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px;
  margin-bottom: 4px;
}

.memory-var__type {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #64748b;
}

.memory-var__delta {
  display: block;
  margin-top: 4px;
  font-size: 0.68rem;
  color: #fcd34d;
  line-height: 1.35;
}

.memory-var__shared {
  display: block;
  margin-top: 4px;
  font-size: 0.68rem;
  color: #a5b4fc;
}

.memory-var__badge--new {
  right: auto;
  left: 6px;
  background: #86efac;
  color: #14532d;
}

.memory-coll__list,
.memory-coll__dict {
  list-style: none;
  margin: 6px 0 0;
  padding: 0;
  width: 100%;
}

.memory-coll__item,
.memory-coll__dict-row {
  display: flex;
  align-items: flex-start;
  gap: 6px;
  padding: 2px 0;
  font-family: var(--mono);
  font-size: 0.74rem;
}

.memory-coll__index,
.memory-coll__key {
  color: #fbbf24;
  flex-shrink: 0;
  font-weight: 600;
}

.memory-coll__arrow {
  color: #64748b;
  flex-shrink: 0;
}

.memory-coll__val {
  color: #e2e8f0;
}

.memory-coll__item--more {
  color: var(--text-muted);
  font-style: italic;
}

.memory-cell--primitive {
  color: #86efac;
}

.memory-cell--inline {
  color: #cbd5e1;
}

@keyframes memory-var-flash {
  0%,
  100% {
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  }
  35% {
    border-color: rgba(250, 204, 21, 0.9);
    background: rgba(113, 63, 18, 0.45);
    box-shadow: 0 0 18px rgba(250, 204, 21, 0.35);
  }
}

.memory-var__name {
  font-size: 0.72rem;
  color: #93c5fd;
  font-weight: 600;
}

.memory-var__value {
  display: block;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: #bbf7d0;
  word-break: break-word;
}

.memory-var--ref .memory-var__value {
  color: #c7d2fe;
}

.memory-var__badge {
  position: absolute;
  top: -7px;
  right: 6px;
  padding: 1px 6px;
  border-radius: 999px;
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: #422006;
  background: #facc15;
}

.debug-vars--legacy {
  display: none;
}

.code-preview code {
  display: block;
  white-space: inherit;
  font: inherit;
  color: inherit;
}

.code-preview mark.code-line--active {
  display: inline;
  background: rgba(59, 130, 246, 0.18);
  color: inherit;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
  box-shadow: inset 3px 0 0 var(--accent);
}

.code-preview,
.output-console {
  flex: 1;
  margin: 0;
  padding: 14px 16px;
  overflow: auto;
  font-family: var(--mono);
  font-size: 0.82rem;
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
}

.code-preview {
  background: #1e1e1e;
  color: #d4d4d4;
  border-left: 1px solid var(--border);
}

.code-preview[hidden],
.code-editor-wrap[hidden],
.code-editor[hidden] {
  display: none !important;
}

.output-console {
  background: #0d1117;
  color: var(--text);
}

.output-console--error {
  color: #fca5a5;
}

.output-console--success {
  color: #86efac;
}

.badge {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.badge--idle {
  background: var(--surface-2);
  color: var(--text-muted);
}

.badge--running {
  background: rgba(59, 130, 246, 0.2);
  color: var(--accent);
}

.badge--success {
  background: rgba(34, 197, 94, 0.2);
  color: var(--success);
}

.badge--error {
  background: rgba(239, 68, 68, 0.2);
  color: var(--error);
}

.lesson-content,
.task-content {
  padding: 14px 16px;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-muted);
}

.lesson-content h3 {
  color: var(--text);
  font-size: 1rem;
  margin-bottom: 8px;
}

.lesson-content ul {
  margin: 8px 0 0 18px;
}

.lesson-content li {
  margin-bottom: 4px;
}

.lesson-content strong {
  color: var(--accent);
}

/* --- Blockly: окно создания переменной / процедуры --- */
dialog.blocklyDialog {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  margin: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  padding: 0;
  min-width: 340px;
  max-width: min(420px, 92vw);
  max-height: calc(100dvh - 32px);
  font-family: var(--font);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.45);
  z-index: 10001;
}

dialog.blocklyDialog[open] {
  display: block;
}

dialog.blocklyDialog::backdrop {
  background: rgba(15, 20, 25, 0.72);
  backdrop-filter: blur(3px);
}

.blocklyDialogForm {
  display: flex;
  flex-direction: column;
  margin: 0;
  padding: 0;
}

.blocklyDialogPrompt {
  display: block;
  padding: 18px 20px 12px;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.45;
  color: var(--text);
}

.blocklyDialogInput {
  display: block;
  width: calc(100% - 40px);
  margin: 0 20px 18px;
  padding: 10px 12px;
  font-size: 0.9rem;
  font-family: var(--font);
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.blocklyDialogInput::placeholder {
  color: var(--text-muted);
}

.blocklyDialogInput:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.22);
}

.blocklyDialogButtonRow {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 10px;
  padding: 14px 20px 18px;
  border-top: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.14);
}

.blocklyDialogConfirmButton,
.blocklyDialogCancelButton {
  border: none;
  border-radius: var(--radius);
  padding: 8px 18px;
  font-size: 0.88rem;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: background 0.15s, color 0.15s, transform 0.1s;
}

.blocklyDialogConfirmButton:active,
.blocklyDialogCancelButton:active {
  transform: scale(0.98);
}

.blocklyDialogConfirmButton {
  background: var(--accent);
  color: #fff;
}

.blocklyDialogConfirmButton:hover {
  background: var(--accent-hover);
}

.blocklyDialogCancelButton {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.blocklyDialogCancelButton:hover {
  background: var(--surface-2);
  color: var(--text);
}

@media (max-width: 960px) {
  body:not(.page-body) {
    height: auto;
    min-height: 100vh;
    overflow: auto;
  }

  .layout {
    grid-template-columns: 1fr;
    grid-template-rows: minmax(420px, 55vh) auto;
    height: auto;
    min-height: calc(100vh - var(--editor-header-height, 62px));
  }

  .editor-area {
    flex-direction: column;
    min-height: 420px;
  }

  body:not(.page-body) {
    --editor-cat-width: 56px;
    --editor-palette-width: 198px;
  }

  .workspace-bar {
    padding-left: calc(var(--editor-blocks-offset) + 8px);
    padding-right: 10px;
  }

  .workspace-bar__cluster {
    flex-wrap: wrap;
    overflow: visible;
  }

  .sidebar-runbar {
    padding: 8px 10px;
  }

  .sidebar-runbar .btn--icon {
    width: 40px;
    height: 40px;
    min-width: 40px;
  }

  .picker-group {
    flex: 1 1 100%;
    overflow: hidden;
  }

  .blockly-shell .blocklyFlyout {
    max-height: calc(100% - var(--palette-title-height));
  }

  .panel-resize-handle {
    display: none;
  }

  .sidebar {
    max-height: none;
    min-height: 280px;
  }

  .panel--code {
    min-height: 140px;
  }

  .panel--output {
    min-height: 120px;
  }

  .header {
    padding: 10px 14px;
    gap: 10px;
  }

  .header__subtitle {
    display: none;
  }

  .header__nav-panel {
    width: 100%;
  }

  .header__nav-panel .site-nav {
    flex-wrap: wrap;
    justify-content: flex-start;
  }

  .select {
    min-width: 0;
    flex: 1 1 160px;
    max-width: 100%;
  }

  .select--wide {
    min-width: 0;
    max-width: none;
    flex: 1 1 100%;
  }
}

@media (max-width: 768px) {
  .header h1 {
    font-size: 1.1rem;
  }

  .header__logo {
    font-size: 1.6rem;
  }

  .header__brand {
    gap: 8px;
  }

  .layout {
    grid-template-rows: minmax(360px, 50vh) auto;
  }

  .editor-area {
    min-height: 360px;
  }

  body:not(.page-body) {
    --editor-cat-width: 48px;
    --editor-palette-width: 176px;
  }

  .workspace-bar {
    padding: 6px 8px 6px calc(var(--editor-blocks-offset) + 6px);
    gap: 8px;
  }

  .task-strip {
    max-height: 28vh;
  }

  .task-strip__header {
    flex-wrap: wrap;
  }

  .task-nav {
    width: 100%;
    justify-content: flex-end;
  }
}

@media (max-width: 480px) {
  .header__row--main {
    flex-wrap: wrap;
    gap: 8px;
  }

  .header__nav-panel {
    width: 100%;
  }

  .header__nav-panel .site-nav {
    flex-wrap: wrap;
    gap: 4px;
  }

  .site-nav__user {
    display: none;
  }

  .workspace-bar {
    padding: 6px 8px 6px calc(var(--editor-blocks-offset) + 4px);
  }

  .workspace-bar__cluster {
    width: 100%;
    flex-wrap: wrap;
    overflow: visible;
  }

  .picker-group {
    width: 100%;
    overflow: hidden;
  }

  .picker-group__item--topic,
  .picker-group__item--task {
    flex: 1 1 100%;
    max-width: none;
  }

  .picker-group__more {
    width: 100%;
    justify-content: center;
    border-left: none !important;
    border-top: 1px solid var(--border) !important;
  }

  .mode-switch {
    width: 100%;
    justify-content: stretch;
  }

  .mode-switch__btn {
    flex: 1;
    text-align: center;
  }

  .sidebar-runbar {
    padding: 8px;
    gap: 6px;
  }

  .layout {
    grid-template-rows: minmax(300px, 45vh) auto;
  }

  .editor-area {
    min-height: 300px;
  }

  body:not(.page-body) {
    --editor-cat-width: 48px;
    --editor-palette-width: 152px;
  }

  .scratch-cat__label {
    display: none;
  }

  .scratch-cat__icon {
    font-size: 1.25rem;
  }

  .scratch-cat {
    height: 46px;
    min-height: 46px;
    max-height: 46px;
  }

  .sidebar {
    min-height: 240px;
  }

  .tm-modal {
    padding: 8px;
    align-items: stretch;
  }

  .tm-modal__dialog {
    width: 100%;
    height: calc(100vh - 16px);
    max-height: calc(100vh - 16px);
    border-radius: 12px;
  }

  .tm-modal__grid {
    grid-template-columns: 1fr;
    grid-template-rows: minmax(0, 0.42fr) minmax(0, 0.58fr);
  }

  .tm-modal__code {
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .tm-modal__code-preview {
    min-height: 0;
  }

  .debug-output-console {
    height: 96px;
    max-height: 96px;
  }

  .time-machine__speed-label {
    display: none;
  }

  .debug-controls {
    padding: 8px 12px 4px;
  }

  .panel--code .panel__header {
    flex-wrap: wrap;
    gap: 6px;
    padding: 8px 10px;
  }

  .panel__header-actions {
    flex-wrap: wrap;
    justify-content: flex-end;
    max-width: 100%;
  }

  .panel__header-actions .btn--small {
    padding: 6px 8px;
    min-height: 32px;
  }

  .code-preview,
  .code-editor-highlight,
  .code-editor-input,
  .output-console {
    padding: 10px 12px;
    font-size: 0.78rem;
  }
}

@media (max-width: 640px) {
  body:not(.page-body):not(.blocks-panel-open) {
    --editor-cat-width: 0px;
    --editor-palette-width: 0px;
  }

  body:not(.page-body):not(.blocks-panel-open) .workspace-bar {
    padding-left: 8px;
  }

  .blocks-panel-toggle {
    display: inline-flex;
    flex-shrink: 0;
  }

  body:not(.page-body) .blocks-panel {
    transform: translateX(-100%);
    transition: transform 0.22s ease;
    pointer-events: none;
    z-index: 35;
  }

  body:not(.page-body).blocks-panel-open .blocks-panel {
    transform: translateX(0);
    pointer-events: auto;
    --editor-cat-width: 48px;
    --editor-palette-width: min(76vw, 220px);
  }

  .blocks-panel-backdrop {
    position: absolute;
    inset: 0;
    z-index: 34;
    background: rgba(0, 0, 0, 0.45);
    border: none;
    padding: 0;
    cursor: default;
  }

  .blocks-panel-backdrop[hidden] {
    display: none !important;
  }
}

.blocks-panel-toggle[hidden] {
  display: none !important;
}

.input-modal {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15, 20, 25, 0.72);
  padding: 16px;
}

.input-modal[hidden] {
  display: none !important;
}

.input-modal__dialog {
  width: min(420px, 100%);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.45);
}

.input-modal__dialog h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.input-modal__hint {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.input-modal__form {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 16px;
}

.input-modal__field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.9rem;
}

.input-modal__input {
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 0.95rem;
  font-family: var(--font);
}

.input-modal__input:focus {
  outline: none;
  border-color: var(--accent);
}

.input-modal__actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.code-editor-help-modal {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15, 20, 25, 0.72);
  padding: 16px;
}

.code-editor-help-modal[hidden] {
  display: none !important;
}

.code-editor-help-modal__dialog {
  width: min(460px, 100%);
  max-height: min(88vh, 560px);
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.45);
  overflow: hidden;
}

.code-editor-help-modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.code-editor-help-modal__header h3 {
  font-size: 1rem;
  font-weight: 600;
}

.code-editor-help-modal__close {
  width: 28px;
  height: 28px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-muted);
  font-size: 1.2rem;
  line-height: 1;
  cursor: pointer;
}

.code-editor-help-modal__close:hover {
  background: var(--surface-2);
  color: var(--text);
}

.code-editor-help-modal__body {
  padding: 14px 16px;
  overflow-y: auto;
}

.code-editor-help-modal__section + .code-editor-help-modal__section {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.code-editor-help-modal__section h4 {
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.code-editor-help-modal__section ul {
  margin: 0;
  padding-left: 1.15rem;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.86rem;
  line-height: 1.45;
  color: var(--text);
}

.code-editor-help-modal__section li {
  padding-left: 2px;
}

.code-editor-help-modal__section code {
  font-family: var(--mono);
  font-size: 0.92em;
  color: #7dd3fc;
}

.code-editor-help-modal__section kbd {
  display: inline-block;
  min-width: 1.4em;
  padding: 1px 5px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--surface-2);
  font-family: var(--mono);
  font-size: 0.78rem;
  line-height: 1.35;
  color: var(--text);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.2);
}

.code-editor-help-modal__footer {
  display: flex;
  justify-content: flex-end;
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  background: var(--surface);
}

/* --- Модальное окно «Подробнее о теме» --- */
.topic-guide-modal {
  position: fixed;
  inset: 0;
  z-index: 10001;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15, 20, 25, 0.78);
  padding: 16px;
}

.topic-guide-modal[hidden] {
  display: none !important;
}

.topic-guide-modal__dialog {
  width: min(760px, 100%);
  max-height: min(88vh, 900px);
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 20px 56px rgba(0, 0, 0, 0.5);
  overflow: hidden;
}

.topic-guide-modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--surface-2);
  flex-shrink: 0;
}

.topic-guide-modal__header h3 {
  font-size: 1.15rem;
  font-weight: 700;
}

.topic-guide-modal__close {
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--text-muted);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.topic-guide-modal__close:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
}

.topic-guide-modal__body {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 20px;
}

.topic-guide-modal__footer {
  flex-shrink: 0;
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
}

.topic-guide__intro {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text);
  margin-bottom: 20px;
  padding: 14px 16px;
  background: rgba(59, 130, 246, 0.1);
  border-left: 3px solid var(--accent);
  border-radius: 0 8px 8px 0;
}

.topic-guide__section {
  margin-bottom: 24px;
}

.topic-guide__section:last-child {
  margin-bottom: 0;
}

.topic-guide__section-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

.topic-guide__text {
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--text);
  white-space: pre-wrap;
  margin-bottom: 12px;
}

.topic-guide__example {
  margin-top: 12px;
  padding: 14px;
  background: #111827;
  border: 1px solid var(--border);
  border-radius: 10px;
}

.topic-guide__example-label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.topic-guide__example-label + .guide-preview,
.guide-solution .guide-preview {
  margin-top: 8px;
}

.topic-guide__blocks {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
}

.guide-block {
  --block-color: #4c97ff;
  position: relative;
  font-size: 0.82rem;
  font-weight: 600;
  color: #fff;
  border-radius: 6px;
  padding: 6px 12px;
  background: var(--block-color);
  box-shadow: 0 2px 0 rgba(0, 0, 0, 0.25);
  max-width: 100%;
}

.guide-block--hat {
  border-radius: 12px 12px 6px 6px;
  padding-top: 8px;
}

.guide-block--hat::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 12px;
  width: 24px;
  height: 8px;
  background: var(--block-color);
  border-radius: 6px 6px 0 0;
}

.guide-block--cap {
  border-radius: 6px 6px 10px 10px;
}

.guide-block--stmt .guide-block__label,
.guide-block--if .guide-block__label,
.guide-block--while .guide-block__label,
.guide-block--for .guide-block__label {
  opacity: 0.85;
  margin-right: 6px;
}

.guide-block--if,
.guide-block--while,
.guide-block--for,
.guide-block--ifchain {
  min-width: 220px;
}

.guide-block__condition {
  display: block;
  margin-top: 4px;
  padding: 4px 8px;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 4px;
  font-weight: 500;
  font-size: 0.78rem;
}

.guide-block__body {
  margin-top: 6px;
  padding-left: 12px;
  border-left: 2px solid rgba(255, 255, 255, 0.25);
  font-weight: 500;
  font-size: 0.78rem;
  line-height: 1.5;
}

.guide-block__body div + div {
  margin-top: 2px;
}

.guide-block-connector {
  width: 2px;
  height: 6px;
  background: rgba(255, 255, 255, 0.2);
  margin-left: 18px;
}

.topic-guide__result {
  margin-top: 12px;
  padding: 10px 12px;
  background: var(--surface-2);
  border-radius: 8px;
  font-size: 0.85rem;
  line-height: 1.5;
}

.topic-guide__result-label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.topic-guide__result-text {
  font-family: var(--mono);
  color: var(--success);
  white-space: pre-wrap;
}

.topic-guide__tip {
  margin-top: 10px;
  padding: 10px 12px;
  background: rgba(245, 158, 11, 0.12);
  border-left: 3px solid var(--warning);
  border-radius: 0 8px 8px 0;
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--text);
}

.topic-guide__tip::before {
  content: "💡 ";
}

.topic-guide__task-text {
  margin-bottom: 10px;
}

.topic-guide__example--task {
  margin-top: 14px;
  border-color: rgba(59, 130, 246, 0.35);
}

.guide-solution-toggle {
  margin-top: 10px;
  font-size: 0.85rem;
}

.guide-solution {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--border);
  overflow: visible;
}

.guide-preview {
  min-height: 48px;
  width: 100%;
  padding-top: 10px;
  border-radius: 8px;
  overflow: visible;
  background: #1a2332;
}

.guide-preview--mounted {
  height: auto;
  max-height: none;
}

.guide-preview__host {
  min-height: 48px;
  width: auto;
  max-width: 100%;
  overflow: visible !important;
}

.guide-preview__host .blocklySvg {
  background: transparent !important;
  overflow: visible !important;
}

.guide-preview__host .blocklyBlockCanvas,
.guide-preview__host .blocklyBubbleCanvas {
  overflow: visible !important;
}

.guide-preview__host .blocklyMainBackground {
  fill: transparent !important;
}

.guide-preview .blocklyScrollbarHorizontal,
.guide-preview .blocklyScrollbarVertical,
.guide-preview .blocklyScrollbarBackground,
.guide-preview .blocklyScrollbarHandle {
  display: none !important;
}

.guide-preview .blocklyFlyout,
.guide-preview .blocklyTrash {
  display: none !important;
}

.guide-preview__error {
  padding: 12px;
  font-size: 0.85rem;
  color: var(--danger);
}

/* --- Сохранения песочницы --- */
.sandbox-saves-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 0 1 auto;
  min-width: 0;
  margin-left: 2px;
}

.sandbox-saves-bar[hidden] {
  display: none !important;
}

.sandbox-saves-bar__title {
  max-width: 140px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 0 4px;
}

.sandbox-saves-modal {
  position: fixed;
  inset: 0;
  z-index: 10001;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15, 20, 25, 0.78);
  padding: 16px;
}

.sandbox-saves-modal[hidden] {
  display: none !important;
}

.sandbox-saves-modal__dialog {
  width: min(520px, 100%);
  max-height: min(88vh, 720px);
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 20px 56px rgba(0, 0, 0, 0.5);
  overflow: hidden;
}

.sandbox-saves-modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--surface-2);
  flex-shrink: 0;
}

.sandbox-saves-modal__header h3 {
  margin: 0;
  font-size: 1.05rem;
}

.sandbox-saves-modal__close {
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
}

.sandbox-saves-modal__close:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
}

.sandbox-saves-modal__body {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 16px 20px 20px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

#sandboxSavesMainView {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

#sandboxSavesMainView[hidden] {
  display: none !important;
}

.sandbox-saves-modal__section-title {
  margin: 0 0 10px;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.sandbox-saves-modal__list-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.sandbox-saves-modal__list-head .sandbox-saves-modal__section-title {
  margin-bottom: 0;
}

.sandbox-saves-modal__count {
  font-size: 0.75rem;
  color: var(--text-muted);
  flex-shrink: 0;
}

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

.sandbox-saves-form__label {
  font-size: 0.85rem;
  color: var(--text);
}

.sandbox-saves-form__input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-2);
  color: var(--text);
  font: inherit;
}

.sandbox-saves-form__input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.25);
}

.sandbox-saves-form__actions {
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.sandbox-saves-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sandbox-saves-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-2);
}

.sandbox-saves-item.is-active {
  border-color: rgba(59, 130, 246, 0.45);
  background: rgba(59, 130, 246, 0.1);
}

.sandbox-saves-item__info {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sandbox-saves-item__title {
  font-size: 0.92rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sandbox-saves-item__meta {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.sandbox-saves-item__actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.sandbox-saves-empty {
  margin: 0;
  padding: 14px 12px;
  font-size: 0.88rem;
  color: var(--text-muted);
  text-align: center;
}

.sandbox-saves-empty--error {
  color: var(--danger);
}

.sandbox-saves-delete {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 8px 0 4px;
}

.sandbox-saves-delete[hidden] {
  display: none !important;
}

.sandbox-saves-delete__text {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.5;
  color: var(--text);
}

.sandbox-saves-delete__actions {
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 8px;
}

@media (max-width: 640px) {
  .sandbox-saves-item {
    flex-direction: column;
    align-items: stretch;
  }

  .sandbox-saves-item__actions {
    justify-content: flex-end;
  }

  .sandbox-saves-bar__title {
    display: none;
  }
}