/* ===== Топбар ===== */

/* ===== Canvas ===== */
#canvas-wrap {
  position: fixed;
  top: 44px;
  left: 0;
  right: 0;
  bottom: 0;
  background: #fff;
  overflow: hidden;
}
body.dark #canvas-wrap { background: #2a2a2a; }
#canvas-wrap canvas {
  display: block;
  cursor: crosshair;
}

/* ===== Боковые панели ===== */
.side-panel {
  position: fixed;
  top: 44px;
  bottom: 0;
  width: 280px;
  background: var(--card-bg, #fff);
  color: var(--fg, #263238);
  box-shadow: 0 0 24px rgba(0,0,0,0.25);
  z-index: 200;
  display: flex;
  flex-direction: column;
  transition: transform 0.22s ease;
  font-family: Arial, sans-serif;
}
body.dark .side-panel { background: #2a2a2a; color: #eee; }

.side-panel.left {
  left: 0;
  transform: translateX(-100%);
}
.side-panel.right {
  right: 0;
  transform: translateX(100%);
  width: 300px;
}
.side-panel.left.open { transform: translateX(0); }
.side-panel.right.open { transform: translateX(0); }

.panel-header {
  height: 44px;
  padding: 0 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--card-border, #ddd);
  font-size: 13px;
  font-weight: bold;
  background: var(--btn-bg, #f5f5f5);
  flex-shrink: 0;
}
body.dark .panel-header { background: #333; border-color: #444; }
.panel-header > span { flex: 1; }
.panel-header .close-btn {
  background: transparent;
  border: none;
  font-size: 20px;
  color: var(--muted, #888);
  cursor: pointer;
  padding: 0 6px;
  line-height: 1;
}
.panel-header .close-btn:hover { color: #c62828; }

/* Вкладки */
.panel-header.tabs {
  padding: 0;
  gap: 0;
}
.panel-header.tabs .tab-btn {
  flex: 1;
  height: 100%;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  font-size: 12px;
  font-weight: bold;
  color: var(--muted, #888);
  transition: 0.15s;
}
.panel-header.tabs .tab-btn:hover { color: var(--fg, #263238); }
.panel-header.tabs .tab-btn.active {
  color: #0288d1;
  border-bottom-color: #0288d1;
}
.panel-header.tabs .close-btn { flex: 0 0 40px; }

.panel-body {
  flex: 1;
  overflow-y: auto;
  padding: 14px;
}

.tab-content { display: none; }
.tab-content.active { display: block; }

.placeholder {
  color: var(--muted, #78909c);
  font-size: 13px;
  line-height: 1.6;
}
.placeholder h4 {
  margin: 0 0 12px;
  color: var(--fg, #263238);
  font-size: 14px;
}
.placeholder ul { padding-left: 20px; margin: 8px 0; }
.placeholder li { margin: 4px 0; }

.btn-add-layer {
  padding: 8px 14px;
  border: none;
  border-radius: 5px;
  background: #2e7d32;
  color: #fff;
  font-weight: bold;
  cursor: pointer;
  font-size: 12px;
}
.btn-add-layer:hover { background: #388e3c; }

/* Мобильный: панели на весь экран */
@media (max-width: 700px) {
  .side-panel, .side-panel.right {
    width: 90vw;
  }
  #topbar .project-name { width: 120px; }
  #topbar .brand span { display: none; }
}

/* ===== Hover-триггер для панелей ===== */
/* Невидимая полоса у края, при наведении панель выезжает */


.side-panel.left {
  transition: transform 0.25s ease;
  transform: translateX(-100%);
}
.side-panel.left.open,
.side-panel.left:hover {
  transform: translateX(0);
}
.side-panel.right {
  transition: transform 0.25s ease;
  transform: translateX(100%);
}
.side-panel.right.open,
.side-panel.right:hover {
  transform: translateX(0);
}

/* Индикатор-«язычок» на краю панели */
.side-panel.left::after {
  content: '';
  position: absolute;
  right: -6px;
  top: 50%;
  width: 6px;
  height: 60px;
  margin-top: -30px;
  background: rgba(79,195,247,0.6);
  border-radius: 0 4px 4px 0;
}
.side-panel.right::after {
  content: '';
  position: absolute;
  left: -6px;
  top: 50%;
  width: 6px;
  height: 60px;
  margin-top: -30px;
  background: rgba(79,195,247,0.6);
  border-radius: 4px 0 0 4px;
}


/* ===== НОВЫЙ ТОПБАР ===== */
#topbar {
  height: 48px;
  background: #ffffff;
  color: #263238;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 12px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08), 0 2px 8px rgba(0,0,0,0.04);
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  border-bottom: 1px solid #e0e0e0;
}
body.dark #topbar {
  background: #1e1e1e;
  color: #eee;
  border-bottom-color: #333;
  box-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

#topbar .brand {
  font-size: 22px;
  cursor: default;
  user-select: none;
  margin-right: 4px;
}

#topbar .project-name {
  background: transparent;
  border: 1px solid transparent;
  color: inherit;
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  width: 240px;
  outline: none;
  transition: 0.15s;
  font-family: inherit;
}
#topbar .project-name:hover {
  background: rgba(0,0,0,0.04);
  border-color: #e0e0e0;
}
body.dark #topbar .project-name:hover {
  background: rgba(255,255,255,0.05);
  border-color: #444;
}
#topbar .project-name:focus {
  background: #fff;
  border-color: #4fc3f7;
  box-shadow: 0 0 0 3px rgba(79,195,247,0.15);
}
body.dark #topbar .project-name:focus {
  background: #2a2a2a;
}

#topbar .spacer { flex: 1; }

#topbar .toolbar-group {
  display: flex;
  align-items: center;
  gap: 2px;
  background: rgba(0,0,0,0.03);
  border-radius: 10px;
  padding: 3px;
}
body.dark #topbar .toolbar-group {
  background: rgba(255,255,255,0.05);
}

#topbar .tb-icon {
  background: transparent;
  border: none;
  color: inherit;
  width: 36px;
  height: 36px;
  border-radius: 7px;
  cursor: pointer;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: 0.15s;
  position: relative;
}
#topbar .tb-icon:hover {
  background: rgba(79,195,247,0.15);
}
#topbar .tb-icon:active {
  transform: scale(0.94);
}
#topbar .tb-icon.danger:hover {
  background: rgba(198,40,40,0.15);
}

#topbar .tb-sep {
  width: 1px;
  height: 22px;
  background: rgba(0,0,0,0.1);
  margin: 0 4px;
}
body.dark #topbar .tb-sep { background: rgba(255,255,255,0.15); }

/* ===== ЯРЛЫКИ НА КРАЯХ ПАНЕЛЕЙ ===== */

/* Ярлык прячется, когда панель открыта */
.side-panel.left.open ~ .side-panel.right.open ~ 
/* На тёмной теме — ярлыки тоже тёмные */
body.dark body.dark 
/* ===== ПАНЕЛИ ===== */
.side-panel {
  top: 48px;
}
.edge-trigger { display: none; }



/* ===== Ярлыки-иконки (замена текста) ===== */


/* ===== Ярлыки-иконки как «язычки» панелей ===== */
.side-panel.left::after,
.side-panel.right::after {
  content: attr(data-label-icon);
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 60px;
  background: #4fc3f7;
  color: #fff;
  font-size: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  box-shadow: 2px 0 8px rgba(0,0,0,0.15);
  cursor: pointer;
  user-select: none;
  transition: background 0.15s;
  z-index: 1;
}
.side-panel.left::after {
  right: -40px;
  border-radius: 0 10px 10px 0;
}
.side-panel.right::after {
  left: -40px;
  border-radius: 10px 0 0 10px;
  box-shadow: -2px 0 8px rgba(0,0,0,0.15);
}
.side-panel.left::after:hover,
.side-panel.right::after:hover {
  background: #29b6f6;
}
body.dark .side-panel.left::after,
body.dark .side-panel.right::after {
  background: #37474f;
}
body.dark .side-panel.left::after:hover,
body.dark .side-panel.right::after:hover {
  background: #455a64;
}

/* Убеждаемся, что панели overflow: visible (чтобы ярлык торчал) */
.side-panel {
  overflow: visible !important;
}
.side-panel .panel-body {
  overflow-y: auto;
}

/* ===== Библиотека фигур ===== */
.lib-group {
  margin-bottom: 6px;
  border-radius: 6px;
  overflow: hidden;
}
.lib-group-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  background: rgba(0,0,0,0.04);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--muted, #546e7a);
  cursor: pointer;
  user-select: none;
}
body.dark .lib-group-header { background: rgba(255,255,255,0.06); }
.lib-group-header:hover { background: rgba(79,195,247,0.1); }
.lib-arrow {
  transition: transform 0.2s;
  font-size: 10px;
}
.lib-group.collapsed .lib-group-items {
  display: none;
}
.lib-group.collapsed .lib-arrow {
  transform: rotate(-90deg);
}
.lib-group-items {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 4px;
}
.lib-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border: 2px solid transparent;
  border-radius: 6px;
  background: transparent;
  color: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  text-align: left;
  transition: 0.12s;
  width: 100%;
}
.lib-item:hover { background: rgba(79,195,247,0.12); }
.lib-item.active {
  background: #4fc3f7;
  color: #000;
  border-color: #0288d1;
}
.lib-icon { font-size: 18px; }
.lib-label { flex: 1; }

/* ===== Панель слоёв ===== */
.layers-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--muted, #546e7a);
  margin-bottom: 10px;
}
.layers-list {
  display: flex;
  flex-direction: column;
  gap: 3px;
  margin-bottom: 14px;
}
.layer-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 8px;
  border-radius: 6px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: 0.12s;
  background: rgba(0,0,0,0.02);
  font-size: 13px;
}
body.dark .layer-row { background: rgba(255,255,255,0.03); }
.layer-row:hover { background: rgba(79,195,247,0.1); }
.layer-row.active {
  background: rgba(79,195,247,0.2);
  border-color: #0288d1;
  font-weight: 700;
}
.layer-row.locked {
  opacity: 0.6;
  cursor: not-allowed;
}
.layer-row.hidden-layer {
  opacity: 0.45;
  font-style: italic;
}
.layer-btn {
  background: transparent;
  border: none;
  font-size: 15px;
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 4px;
  line-height: 1;
  transition: 0.12s;
}
.layer-btn:hover { background: rgba(0,0,0,0.08); }
body.dark .layer-btn:hover { background: rgba(255,255,255,0.1); }
.layer-btn.danger:hover { background: rgba(198,40,40,0.2); }
.layer-color {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.layer-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.layer-count {
  font-size: 11px;
  color: var(--muted, #888);
  background: rgba(0,0,0,0.06);
  padding: 2px 8px;
  border-radius: 10px;
  font-weight: 600;
}
body.dark .layer-count { background: rgba(255,255,255,0.1); }

/* ===== Панель свойств ===== */
.props-title {
  margin: 0 0 4px;
  font-size: 15px;
  color: var(--fg, #263238);
}
.props-subtitle {
  font-size: 11px;
  color: var(--muted, #888);
  margin-bottom: 14px;
  font-style: italic;
}
.props-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 12px;
}
.props-field label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--muted, #546e7a);
}
.props-field input,
.props-field select {
  padding: 8px 10px;
  border: 1px solid var(--input-border, #cfd8dc);
  border-radius: 6px;
  background: var(--input-bg, #fff);
  color: var(--fg, #263238);
  font-size: 13px;
  font-family: inherit;
  outline: none;
}
.props-field input:focus,
.props-field select:focus {
  border-color: #4fc3f7;
  box-shadow: 0 0 0 3px rgba(79,195,247,0.15);
}
.props-readonly {
  padding: 8px 10px;
  background: rgba(0,0,0,0.04);
  border-radius: 6px;
  font-size: 13px;
  color: var(--fg, #263238);
}
body.dark .props-readonly { background: rgba(255,255,255,0.06); }
.props-btn {
  width: 100%;
  padding: 9px;
  margin-top: 6px;
  border: none;
  border-radius: 6px;
  background: var(--btn-bg, #eceff1);
  color: var(--btn-fg, #37474f);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: 0.15s;
}
.props-btn:hover { background: var(--btn-hover, #e0e0e0); }
.props-btn.danger {
  background: #c62828;
  color: #fff;
}
.props-btn.danger:hover { background: #d32f2f; }
.props-hint {
  font-size: 12px;
  color: var(--muted, #888);
  line-height: 1.5;
  margin-top: 20px;
  font-style: italic;
}

/* ===== Активная кнопка инструмента в топбаре ===== */
#topbar .tb-icon[data-tool].active {
  background: #4fc3f7;
  color: #000;
}
body.dark #topbar .tb-icon[data-tool].active {
  background: #4fc3f7;
  color: #000;
}

/* ===== Контекстное меню ===== */
.context-menu {
  display: none;
  position: fixed;
  z-index: 3000;
  background: var(--card-bg, #fff);
  border: 1px solid var(--card-border, #ccc);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
  padding: 4px;
  min-width: 180px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  font-size: 13px;
}
body.dark .context-menu {
  background: #2a2a2a;
  border-color: #444;
}
.ctx-item {
  padding: 8px 12px;
  border-radius: 5px;
  cursor: pointer;
  color: var(--fg, #263238);
  transition: 0.1s;
}
body.dark .ctx-item { color: #eee; }
.ctx-item:hover {
  background: rgba(79,195,247,0.2);
}
.ctx-item.danger {
  color: #c62828;
}
.ctx-item.danger:hover {
  background: rgba(198,40,40,0.15);
}
.ctx-item.disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.ctx-sep {
  height: 1px;
  background: var(--card-border, #eee);
  margin: 4px 8px;
}
body.dark .ctx-sep { background: #444; }

/* ===== Модалки: confirm + prompt ===== */
.confirm-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 3000;
  align-items: center;
  justify-content: center;
}
.confirm-backdrop.show { display: flex; }
.confirm-modal {
  background: #fff;
  padding: 24px;
  border-radius: 10px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.3);
  width: 100%;
  max-width: 420px;
  font-family: Arial, sans-serif;
  box-sizing: border-box;
}
body.dark .confirm-modal { background: #2a2a2a; color: #eee; }
.confirm-modal h2 { margin: 0 0 12px; font-size: 18px; color: #263238; }
body.dark .confirm-modal h2 { color: #eee; }
.confirm-modal p { margin: 0 0 20px; font-size: 14px; color: #78909c; line-height: 1.5; }
.confirm-modal .actions { display: flex; gap: 8px; }
.confirm-modal .actions button {
  flex: 1;
  padding: 10px;
  border: none;
  border-radius: 6px;
  font-size: 13px;
  font-weight: bold;
  cursor: pointer;
  transition: 0.15s;
}
.confirm-modal .actions .secondary { background: #eceff1; color: #37474f; }
.confirm-modal .actions .secondary:hover { background: #e0e0e0; }
.confirm-modal .actions .danger { background: #c62828; color: #fff; }
.confirm-modal .actions .danger:hover { background: #d32f2f; }
.confirm-modal .actions .primary { background: #2e7d32; color: #fff; }
.confirm-modal .actions .primary:hover { background: #388e3c; }

/* ===== Тост ===== */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: #2e7d32;
  color: #fff;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: bold;
  box-shadow: 0 6px 20px rgba(0,0,0,0.3);
  z-index: 4000;
  opacity: 0;
  transition: opacity 0.3s, transform 0.3s;
  pointer-events: none;
  font-family: Arial, sans-serif;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.error { background: #c62828; }