/* 
 * HTML Builder - Modern UI Styles
 * Стильный и современный интерфейс для HTML Builder
 */

:root {
  --primary-color: #6366f1;
  --primary-hover: #818cf8;
  --secondary-color: #e0e7ff;
  --accent-color: #4f46e5;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --danger-color: #ef4444;
  --light-bg: #f9fafb;
  --dark-bg: #1f2937;
  --card-bg: #ffffff;
  --border-color: #e5e7eb;
  --text-primary: #111827;
  --text-secondary: #6b7280;
  --text-disabled: #9ca3af;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
    0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1),
    0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --radius-sm: 0.125rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --font-sans: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;

  /* Настройки точечного фона */
  --dot-color: rgba(99, 102, 241, 0.2);
  --dot-size: 1px;
  --dot-spacing: 20px;
  --animation-speed: 20s;
  --animation-direction: top-right;

  /* Цвета для дерева элементов */
  --tree-hover-bg: rgba(99, 102, 241, 0.15);
  --tree-active-bg: rgba(99, 102, 241, 0.2);
  --tree-hover-dark-bg: rgba(129, 140, 248, 0.15);
  --tree-active-dark-bg: rgba(129, 140, 248, 0.2);
  --tree-line-color: var(--primary-color);
  --tree-line-opacity: 0.3;
}

@media (prefers-color-scheme: dark) {
  :root {
    --light-bg: #111827;
    --dark-bg: #030712;
    --card-bg: #1f2937;
    --border-color: #374151;
    --text-primary: #f9fafb;
    --text-secondary: #e5e7eb;
    --text-disabled: #6b7280;
    --dot-color: rgba(99, 102, 241, 0.3);
  }
}

/* Анимации для фона с точками */
@keyframes move-to-top-right {
  0% {
    background-position: 0 100%;
  }
  100% {
    background-position: 100% 0;
  }
}

@keyframes move-to-top-left {
  0% {
    background-position: 100% 100%;
  }
  100% {
    background-position: 0 0;
  }
}

@keyframes move-to-bottom-right {
  0% {
    background-position: 0 0;
  }
  100% {
    background-position: 100% 100%;
  }
}

@keyframes move-to-bottom-left {
  0% {
    background-position: 100% 0;
  }
  100% {
    background-position: 0 100%;
  }
}

@keyframes move-to-top {
  0% {
    background-position: 0 100%;
  }
  100% {
    background-position: 0 0;
  }
}

@keyframes move-to-bottom {
  0% {
    background-position: 0 0;
  }
  100% {
    background-position: 0 100%;
  }
}

@keyframes move-to-right {
  0% {
    background-position: 0 0;
  }
  100% {
    background-position: 100% 0;
  }
}

@keyframes move-to-left {
  0% {
    background-position: 100% 0;
  }
  100% {
    background-position: 0 0;
  }
}

/* Основной контейнер */
.html-builder {
  display: flex;
  gap: 16px;
  width: 100%;
  height: 100vh;
  font-family: var(--font-sans);
  color: var(--text-primary);
  background-color: var(--light-bg);
  position: relative;
  overflow: hidden;
}

/* === ОБЛАСТЬ РЕДАКТОРА === */
.html-builder-area-container {
  display: flex;
  flex-direction: column;
  flex: 1;
  border-radius: var(--radius-lg);
  background-color: var(--card-bg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  border: 1px solid var(--border-color);
  height: 100%;
}

.html-builder-area-header {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  background-color: var(--light-bg);
  border-bottom: 1px solid var(--border-color);
}

.html-builder-area-title {
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-primary);
}

.html-builder-area-content {
  flex: 1;
  padding: 24px;
  overflow-y: auto;
  position: relative;
  background-color: var(--card-bg);
  position: relative;
}

/* Точечный фон для области редактирования */
.html-builder-area-content::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  background-image: radial-gradient(
    var(--dot-color) var(--dot-size),
    transparent calc(var(--dot-size) + 0.5px)
  );
  background-size: var(--dot-spacing) var(--dot-spacing);
  /* Используем направление по умолчанию - top-right */
  animation: move-to-top-right var(--animation-speed) linear infinite;
  z-index: 0;
}

/* Классы для изменения направления */
.direction-top-right .html-builder-area-content::before {
  animation-name: move-to-top-right;
}

.direction-top-left .html-builder-area-content::before {
  animation-name: move-to-top-left;
}

.direction-bottom-right .html-builder-area-content::before {
  animation-name: move-to-bottom-right;
}

.direction-bottom-left .html-builder-area-content::before {
  animation-name: move-to-bottom-left;
}

.direction-top .html-builder-area-content::before {
  animation-name: move-to-top;
}

.direction-bottom .html-builder-area-content::before {
  animation-name: move-to-bottom;
}

.direction-right .html-builder-area-content::before {
  animation-name: move-to-right;
}

.direction-left .html-builder-area-content::before {
  animation-name: move-to-left;
}

.html-builder-area-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  min-height: 200px;
  position: absolute;

  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  pointer-events: none;
}

.html-builder-area-placeholder {
  padding: 20px;
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 1.1rem;
  text-align: center;
  backdrop-filter: blur(5px);
  background-color: rgba(255, 255, 255, 0.1);
}

.html-builder-tips {
  margin-top: 15px;
  font-size: 0.85rem;
  opacity: 0.8;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.tip {
  padding: 5px 8px;
  background-color: rgba(99, 102, 241, 0.1);
  border-radius: var(--radius-sm);
  border-left: 2px solid var(--primary-color);
}

.tip strong {
  color: var(--primary-color);
  font-weight: 600;
}

/* === ДЕРЕВО КОМПОНЕНТОВ === */
.html-builder-tree-container {
  display: flex;
  flex-direction: column;
  width: 100%;
  border-radius: var(--radius-lg);
  background-color: var(--card-bg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  border: 1px solid var(--border-color);
  height: 100%;
  min-height: 30px;
}

.html-builder-tree {
  width: 300px;
}
.html-builder-tree-container.is-overed {
  border-color: var(--primary-color);
}

.html-builder-droppable {
  height: 100%;
  display: inherit;
}

.html-builder-tree-header {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  background-color: var(--light-bg);
  border-bottom: 1px solid var(--border-color);
}

.html-builder-tree-title {
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-primary);
}

.html-builder-tree-content {
  flex: 1;
  overflow-y: auto;
  padding: 8px 0;
  background-color: var(--card-bg);
}

.html-builder-tree-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  min-height: 100px;
}

.html-builder-tree-empty-text {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* Основные стили для элементов дерева */
.tree-item {
  position: relative;
  font-size: 0.875rem;
}

.tree-item-content {
  display: flex;
  align-items: center;
  padding: 6px 8px;
  cursor: pointer;
  border-left: 2px solid transparent;
  user-select: none;
  transition: background-color 0.15s ease;
}

.tree-item-content:hover {
  background-color: var(--tree-hover-bg);
}

.tree-item.active > .tree-item-content {
  background-color: var(--tree-active-bg);
  border-left: 2px solid var(--primary-color);
}

.tree-toggle-button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  font-size: 10px;
  color: var(--text-secondary);
  transition: transform 0.2s ease;
}

.tree-toggle-button:hover {
  color: var(--primary-color);
}

.tree-item-spacer {
  width: 16px;
}

.tree-item-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  margin-right: 6px;
  color: var(--primary-color);
  font-size: 14px;
}

.tree-item-label {
  flex: 1;
  display: flex;
  align-items: center;
  cursor: move;
}

.tree-item-tag {
  font-weight: 500;
}

.tree-item-id {
  margin-left: 4px;
  font-size: 0.675rem;
  opacity: 0.5;
  color: var(--text-secondary);
}

.tree-item-actions {
  display: flex;
  align-items: center;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.tree-item-content:hover .tree-item-actions {
  opacity: 1;
}

.tree-action-button {
  background: none;
  border: none;
  cursor: pointer;
  padding: 2px;
  font-size: 12px;
  opacity: 0.7;
}

.tree-action-button:hover {
  opacity: 1;
}

.tree-action-button.delete-button:hover {
  color: var(--danger-color);
}

/* Улучшенные стили для вложенности */
.tree-children-container {
  position: relative;
  padding-left: 24px;
  margin-top: 2px;
}

.tree-children-line {
  display: none;
}

.tree-children-content {
  position: relative;
}

/* Состояние невидимого элемента */
.tree-item:has(.visibility-toggle:not([title='Hide element']))
  > .tree-item-content {
  opacity: 0.5;
}

/* Темная тема для дерева */
@media (prefers-color-scheme: dark) {
  .tree-item-content:hover {
    background-color: var(--tree-hover-dark-bg);
  }

  .tree-item.active > .tree-item-content {
    background-color: var(--tree-active-dark-bg);
  }
}

.tree-item-root {
  font-weight: 500;
}

.tree-item-indent {
  margin-left: 20px;
  position: relative;
}

.tree-item-indent:before {
  content: '';
  position: absolute;
  left: -12px;
  top: 50%;
  width: 8px;
  height: 1px;
  background-color: var(--border-color);
}

/* === ПАНЕЛЬ КОМПОНЕНТОВ === */
.html-builder-components-container {
  display: flex;
  flex-direction: column;
  width: 250px;
  border-radius: var(--radius-lg);
  background-color: var(--card-bg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  border: 1px solid var(--border-color);
  height: 100%;
}

.html-builder-components-header {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  background-color: var(--light-bg);
  border-bottom: 1px solid var(--border-color);
}

.html-builder-components-title {
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-primary);
}

.html-builder-components-content {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  background-color: var(--card-bg);
}

.component-category {
  margin-bottom: 24px;
}

.category-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin: 0 0 12px 0;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.components-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.component-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 12px 8px;
  border-radius: var(--radius-md);
  background-color: var(--light-bg);
  border: 1px solid var(--border-color);
  cursor: move;
  transition: all 0.2s;
}

.component-item:hover {
  border-color: var(--primary-hover);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

.component-item-icon {
  font-size: 1.5rem;
  margin-bottom: 4px;
  color: var(--primary-color);
}

.component-item-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
}

/* === ПАНЕЛЬ КОНФИГУРАЦИИ === */
.html-builder-config-container {
  height: 300px;
  width: 100%;
  position: fixed;
  background-color: var(--card-bg);
  bottom: 0;
  left: 0;
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--border-color);
}

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

.html-builder-config-title {
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-primary);
}

.html-builder-config-sections {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 16px;
  padding: 16px;
  overflow-y: auto;
  background-color: var(--card-bg);
}

.html-builder-draggable.is-dragging {
  opacity: 0;
}

.html-builder-config-section {
  background-color: var(--light-bg);
  border-radius: var(--radius-md);
  padding: 4px;
}

.html-builder-config-empty-icon {
  font-size: 2rem;
}

.html-builder-config-empty-text {
  color: var(--text-secondary);
  font-size: 1rem;
}

/* === ЭЛЕМЕНТЫ ФОРМЫ === */
fieldset {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px;
  margin-bottom: 12px;
  background-color: var(--card-bg);
}

legend {
  font-weight: 600;
  padding: 0 6px;
  font-size: 0.875rem;
  color: var(--text-primary);
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 12px;
}

label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 500;
}

input[type='range'] {
  width: 100%;
  height: 6px;
  -webkit-appearance: none;
  background: var(--secondary-color);
  border-radius: 10px;
  outline: none;
}

input[type='range']::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--primary-color);
  cursor: pointer;
  border: 2px solid white;
  box-shadow: var(--shadow-sm);
}

input[type='color'] {
  width: 100%;
  height: 30px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background-color: var(--card-bg);
  padding: 2px;
}

input[type='text'] {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background-color: var(--card-bg);
}

input[type='number'] {
  width: min-content;
  padding: 8px 10px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background-color: var(--card-bg);
}

select {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background-color: var(--card-bg);
  color: var(--text-primary);
  font-size: 0.875rem;
  outline: none;
  transition: border-color 0.2s;
}

select:focus {
  border-color: var(--primary-color);
}

/* === ПЕРЕТАСКИВАЕМЫЕ ЭЛЕМЕНТЫ === */
.draggable-component {
  position: relative;
  cursor: move;
  user-select: none;
  transition: outline 0.2s;
  z-index: 1;
}

.draggable-component:hover {
  outline: 1px dashed var(--primary-color);
}

.dropzone {
  min-height: 50px;
  border: 2px dashed transparent;
  padding: 10px;
  position: relative;
  border-radius: var(--radius-md);
  transition: all 0.2s;
  z-index: 1;
}

.dropzone.is-active {
  border-color: var(--primary-color);
  background-color: rgba(99, 102, 241, 0.05);
}

/* === СТИЛИ ЭЛЕМЕНТОВ === */

.tree-item.dragging {
  opacity: 0;
}

/* === АКТИВНЫЕ ЭЛЕМЕНТЫ === */
.active-element {
  outline: 2px solid var(--primary-color) !important;
  position: relative;
  z-index: 1;
}

/* === УТИЛИТЫ === */
.hidden {
  display: none !important;
}

/* === ПЕРЕКЛЮЧАТЕЛЬ АНИМАЦИИ === */
.animation-top-right .html-builder-area-content::before {
  animation: move-to-top-right var(--animation-speed) linear infinite;
}

.animation-right .html-builder-area-content::before {
  animation: move-to-right var(--animation-speed) linear infinite;
}

.animation-top .html-builder-area-content::before {
  animation: move-to-top var(--animation-speed) linear infinite;
}

.animation-rotate .html-builder-area-content::before {
  animation: move-to-bottom-right var(--animation-speed) linear infinite;
}

/* === АДАПТИВНЫЕ СТИЛИ === */
@media (prefers-color-scheme: dark) {
  .draggable-component,
  .html-builder-area-placeholder,
  .component-item,
  .tree-item,
  .html-builder-config-section,
  input,
  select,
  option,
  button {
    color: var(--text-primary);
  }

  input[type='range']::-webkit-slider-thumb {
    border-color: var(--dark-bg);
  }
}

/* Адаптивные стили для мобильных устройств */
@media (max-width: 768px) {
  .html-builder {
    flex-direction: column;
  }

  .html-builder-tree-container,
  .html-builder-components-container {
    width: 100%;
    height: auto;
    max-height: 250px;
    overflow: auto;
  }

  .html-builder-config-container {
    height: 250px;
  }

  .html-builder-config-sections {
    grid-template-columns: 1fr;
  }
}