:root {
  --bm-mobile-header-height: 56px;
  --bm-mobile-bottom-bar-height: 68px;
  --bm-mobile-header-total-height: calc(var(--bm-mobile-header-height) + env(safe-area-inset-top, 0px));
  --bm-mobile-bottom-bar-total-height: calc(var(--bm-mobile-bottom-bar-height) + env(safe-area-inset-bottom, 0px));
  --bm-mobile-sheet-max-height: min(70vh, 560px);
}

.mobile-sheet-backdrop,
.mobile-bottom-bar,
.mobile-more-panel,
.mobile-sheet-header,
.mobile-sheet-kicker,
.mobile-sheet-subtitle,
.layer-properties-actions {
  display: none;
}

.bm-mobile-layout body {
  background: #f3f4f6;
  overscroll-behavior: none;
}

.bm-mobile-layout .container {
  width: 100% !important;
  max-width: 100% !important;
  height: var(--bm-app-vh, 100dvh) !important;
  min-height: var(--bm-app-vh, 100dvh);
  overflow: hidden;
}

.bm-mobile-layout header {
  box-sizing: border-box;
  height: var(--bm-mobile-header-total-height);
  min-height: var(--bm-mobile-header-total-height);
  padding: calc(8px + env(safe-area-inset-top, 0px)) 12px 8px;
  gap: 8px;
  position: relative;
  z-index: 20;
}

.bm-mobile-layout .header-left,
.bm-mobile-layout .header-right {
  flex: 0 0 auto;
}

.bm-mobile-layout .header-left a {
  gap: 0;
}

.bm-mobile-layout .header-left h1,
.bm-mobile-layout #undo-btn,
.bm-mobile-layout #redo-btn,
.bm-mobile-layout #save-status-btn,
.bm-mobile-layout #user-avatar-wrapper {
  display: none !important;
}

.bm-mobile-layout .header-center {
  flex: 1 1 auto;
  min-width: 0;
  justify-content: center;
}

.bm-mobile-layout .header-center-controls {
  width: 100%;
  gap: 6px !important;
  justify-content: center;
}

.bm-mobile-layout .layout-switch-btn {
  min-width: 0;
  max-width: 82px;
  flex: 1 1 0;
  height: 34px;
  padding: 6px 8px;
  font-size: 13px;
}

.bm-mobile-layout #exportBtn {
  min-height: 40px;
  padding: 0 10px;
  border-radius: 10px;
}

.bm-mobile-layout #exportBtn strong {
  display: none;
}

.bm-mobile-layout .main-content {
  display: block;
  height: calc(var(--bm-app-vh, 100dvh) - var(--bm-mobile-header-total-height));
  padding-bottom: var(--bm-mobile-bottom-bar-total-height);
}

.bm-mobile-layout .nav-sidebar {
  display: none !important;
}

.bm-mobile-layout .canvas-area {
  width: 100%;
  height: 100%;
  padding: 0;
}

.bm-mobile-layout .canvas-container-wrapper,
.bm-mobile-layout #canvas-container {
  padding: 12px;
  background-size: 16px 16px;
}

.bm-mobile-layout .canvas-outer-wrapper,
.bm-mobile-layout .canvas-inner-wrapper {
  min-width: 100%;
  min-height: 100%;
}

.bm-mobile-layout #zoom-control > div:first-child {
  gap: 6px;
  padding: 4px 6px;
}

.bm-mobile-layout #zoomMinusBtn,
.bm-mobile-layout #zoomPlusBtn {
  width: 36px !important;
  height: 36px !important;
}

.bm-mobile-layout #zoomToggleBtn {
  min-height: 36px;
  padding: 0 2px;
}

.bm-mobile-layout #zoomValue {
  font-size: 13px;
}

.bm-mobile-layout #zoomDropdown {
  width: 96px;
}

.bm-mobile-layout .mobile-sheet-backdrop {
  display: block;
  position: fixed;
  inset: 0;
  z-index: 60;
  background: rgba(15, 23, 42, 0.34);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.bm-mobile-layout .mobile-sheet-backdrop.is-open {
  opacity: 1;
  pointer-events: auto;
}

.bm-mobile-layout .materials-panel,
.bm-mobile-layout .layers-panel,
.bm-mobile-layout .mobile-more-panel {
  position: fixed;
  left: 0;
  right: 0;
  bottom: calc(var(--bm-mobile-bottom-bar-total-height) - 1px);
  width: auto !important;
  max-width: none !important;
  height: auto !important;
  max-height: var(--bm-mobile-sheet-max-height);
  margin: 0;
  padding: 26px 16px 18px !important;
  border: 0 !important;
  border-radius: 20px 20px 0 0;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 -12px 30px rgba(15, 23, 42, 0.18);
  backdrop-filter: blur(18px);
  transform: translateY(calc(100% + 20px));
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: transform 0.22s ease, opacity 0.22s ease, visibility 0.22s ease;
  overscroll-behavior: contain;
  z-index: 70;
}

.bm-mobile-layout .materials-panel::before,
.bm-mobile-layout .layers-panel::before,
.bm-mobile-layout .mobile-more-panel::before {
  content: '';
  position: absolute;
  top: 10px;
  left: 50%;
  width: 40px;
  height: 4px;
  border-radius: 999px;
  background: #cbd5e1;
  transform: translateX(-50%);
}

.bm-mobile-layout body[data-mobile-panel='materials'] .materials-panel,
.bm-mobile-layout body[data-mobile-panel='layers'] .layers-panel,
.bm-mobile-layout body[data-mobile-panel='more'] .mobile-more-panel {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.bm-mobile-layout .materials-panel {
  display: block;
}

.bm-mobile-layout .materials-grid {
  grid-template-columns: repeat(auto-fill, minmax(108px, 1fr));
  gap: 12px 10px;
}

.bm-mobile-layout .layers-panel {
  display: block;
  max-height: min(74vh, 620px);
}

.bm-mobile-layout #template-id-copy-btn,
.bm-mobile-layout #template-favorite-btn {
  width: 28px !important;
  height: 28px !important;
}

.bm-mobile-layout #template-id-copy-btn svg,
.bm-mobile-layout #template-favorite-btn svg {
  width: 18px !important;
  height: 18px !important;
}

.bm-mobile-layout #layer-up,
.bm-mobile-layout #layer-down {
  min-width: 40px;
  min-height: 40px;
  padding: 0 12px !important;
}

.bm-mobile-layout .mobile-more-panel {
  display: flex;
  flex-direction: column;
}

.bm-mobile-layout .mobile-sheet-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.bm-mobile-layout .mobile-sheet-header--panel {
  position: sticky;
  top: 0;
  z-index: 4;
  margin: -4px 0 12px;
  padding: 0 0 12px;
  background: rgba(255, 255, 255, 0.98);
}

.bm-mobile-layout .mobile-sheet-kicker {
  display: block;
  margin-bottom: 4px;
  color: #64748b;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.bm-mobile-layout .mobile-sheet-title {
  font-size: 16px;
  font-weight: 700;
  color: #0f172a;
}

.bm-mobile-layout .mobile-sheet-subtitle {
  display: block;
  margin-top: 4px;
  color: #64748b;
  font-size: 12px;
  line-height: 1.4;
}

.bm-mobile-layout .mobile-sheet-close {
  min-width: 36px;
  min-height: 36px;
  padding: 0 12px;
  border: 1px solid #e2e8f0;
  border-radius: 999px;
  background: #ffffff;
  color: #475569;
  font-size: 13px;
  font-weight: 600;
}

.bm-mobile-layout .mobile-more-summary {
  display: grid;
  gap: 10px;
  margin-bottom: 16px;
}

.bm-mobile-layout .mobile-info-card {
  padding: 12px 14px;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  background: #f8fafc;
}

.bm-mobile-layout .mobile-info-label {
  margin-bottom: 6px;
  color: #64748b;
  font-size: 12px;
  font-weight: 600;
}

.bm-mobile-layout .mobile-info-value {
  color: #0f172a;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
  word-break: break-word;
}

.bm-mobile-layout .mobile-more-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.bm-mobile-layout .mobile-action-button {
  min-height: 46px;
  padding: 0 14px;
  border: 1px solid #dbeafe;
  border-radius: 14px;
  background: #ffffff;
  color: #0f172a;
  font-size: 14px;
  font-weight: 600;
}

.bm-mobile-layout .mobile-action-button--primary {
  background: #eff6ff;
  color: #1d4ed8;
  border-color: #bfdbfe;
}

.bm-mobile-layout .mobile-action-button[aria-pressed='true'] {
  background: #eef2ff;
  color: #4338ca;
  border-color: #c7d2fe;
}

.bm-mobile-layout .mobile-action-button[disabled] {
  opacity: 0.45;
  pointer-events: none;
}

.bm-mobile-layout .mobile-bottom-bar {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 6px;
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 80;
  box-sizing: border-box;
  padding: 8px 10px calc(8px + env(safe-area-inset-bottom, 0px));
  background: rgba(255, 255, 255, 0.96);
  border-top: 1px solid rgba(226, 232, 240, 0.95);
  box-shadow: 0 -10px 24px rgba(15, 23, 42, 0.08);
  backdrop-filter: blur(16px);
}

.bm-mobile-layout .mobile-bottom-bar__item {
  min-width: 0;
  min-height: 48px;
  padding: 6px 4px;
  border: 0;
  border-radius: 12px;
  background: transparent;
  color: #64748b;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.15;
  white-space: nowrap;
}

.bm-mobile-layout .mobile-bottom-bar__item.is-active {
  background: #eff6ff;
  color: #1d4ed8;
}

.bm-mobile-layout #materialsPanel #tagFilterBar {
  position: sticky;
  top: 68px;
  z-index: 3;
  padding: 4px 0 12px !important;
  margin-bottom: 12px !important;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.99), rgba(255, 255, 255, 0.92));
  backdrop-filter: blur(12px);
}

.bm-mobile-layout #materialsPanel #tagSearchInput {
  min-height: 44px;
  font-size: 16px !important;
  border-radius: 14px !important;
}

.bm-mobile-layout #materialsPanel #tagSearchWrap button,
.bm-mobile-layout #materialsPanel #tagSearchWrap span {
  top: 22px !important;
}

.bm-mobile-layout #materialsPanel .grid-chip {
  min-height: 40px;
  padding: 0 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
}

.bm-mobile-layout #materialsPanel .materials-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  align-items: start;
}

.bm-mobile-layout #materialsPanel .material-item {
  min-height: 112px;
  padding: 8px;
  border-width: 1px;
  border-radius: 14px;
  box-shadow: none;
  transform: none;
  touch-action: manipulation;
}

.bm-mobile-layout #materialsPanel .material-item:hover {
  transform: none;
}

.bm-mobile-layout #materialsPanel .material-item:active {
  border-color: #60a5fa;
  background: #eff6ff;
  transform: scale(0.98);
}

.bm-mobile-layout #materialsPanel .material-item img {
  max-height: 96px !important;
}

.bm-mobile-layout #materialsPanel .material-name {
  margin-top: 8px;
  font-size: 12px;
  line-height: 1.35;
}

.bm-mobile-layout #materialsPanel .color-preset,
.bm-mobile-layout #materialsPanel .color-placeholder,
.bm-mobile-layout #materialsPanel .current-color,
.bm-mobile-layout #materialsPanel .color-palette {
  width: 32px !important;
  height: 32px !important;
  border-radius: 8px !important;
}

.bm-mobile-layout #fontSettingsContainer {
  display: flex !important;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 0 !important;
  padding: 16px !important;
  border-radius: 18px !important;
  background: #f8fafc !important;
  grid-column: 1 / -1;
}

.bm-mobile-layout #fontSettingsContainer > * {
  width: 100%;
}

.bm-mobile-layout #fontSettingsContainer input[type='text'],
.bm-mobile-layout #fontSettingsContainer input[type='number'],
.bm-mobile-layout #fontSettingsContainer select,
.bm-mobile-layout #fontSettingsContainer textarea,
.bm-mobile-layout #fontSettingsContainer button {
  font-size: 16px !important;
}

.bm-mobile-layout #fontSettingsContainer input[type='text'],
.bm-mobile-layout #fontSettingsContainer input[type='number'],
.bm-mobile-layout #fontSettingsContainer select,
.bm-mobile-layout #fontSettingsContainer textarea {
  min-height: 44px;
  border-radius: 12px !important;
}

.bm-mobile-layout #fontSettingsContainer input[type='range'] {
  height: 28px;
}

.bm-mobile-layout #fontSettingsContainer .btn,
.bm-mobile-layout #fontSettingsContainer #designAddTextButton {
  min-height: 48px;
  border-radius: 14px !important;
}

.bm-mobile-layout #fontSettingsContainer > div[style*='display: flex'][style*='justify-content: space-between'] {
  display: grid !important;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.bm-mobile-layout #fontSettingsContainer #fontSizeInput,
.bm-mobile-layout #fontSettingsContainer #colorHexInput {
  width: 100% !important;
}

.bm-mobile-layout .file-uploader {
  grid-column: 1 / -1;
}

.bm-mobile-layout .upload-container {
  padding: 18px 16px !important;
  border-radius: 18px !important;
}

.bm-mobile-layout #uploadBtn {
  min-height: 48px;
  border-radius: 14px;
  font-size: 15px;
}

.bm-mobile-layout #layersPanel .layer-panel-toolbar {
  position: sticky;
  top: 68px;
  z-index: 3;
  padding: 8px 0 12px;
  background: rgba(255, 255, 255, 0.98);
}

.bm-mobile-layout #layersPanel .layer-item {
  min-height: 58px;
  padding: 12px 14px;
  margin-bottom: 8px;
  border-radius: 14px;
  touch-action: manipulation;
}

.bm-mobile-layout #layersPanel .layer-name {
  font-size: 15px;
}

.bm-mobile-layout #layersPanel .layer-position {
  margin-top: 2px;
  color: #64748b;
  font-size: 12px;
}

.bm-mobile-layout #layersPanel .layer-delete-icon {
  width: 18px;
  height: 18px;
  opacity: 0.78;
}

.bm-mobile-layout #layersPanel .layer-item:hover .layer-delete-icon {
  opacity: 0.78;
}

.bm-mobile-layout #layersPanel .layer-visibility-icon,
.bm-mobile-layout #layersPanel .layer-btn {
  min-width: 36px;
  min-height: 36px;
}

.bm-mobile-layout #layersPanel .layer-visibility-icon svg {
  width: 18px;
  height: 18px;
}

.bm-mobile-layout .layer-properties-panel {
  margin-top: 12px;
  padding: 16px;
  border: 1px solid #dbe3ee;
  border-radius: 18px;
  background: #f8fafc;
}

.bm-mobile-layout .layer-properties-title {
  font-size: 15px;
  font-weight: 700 !important;
  color: #0f172a !important;
}

.bm-mobile-layout .layer-properties-grid--compact {
  display: grid !important;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px !important;
}

.bm-mobile-layout .layer-properties-panel label {
  font-size: 12px !important;
  font-weight: 600;
}

.bm-mobile-layout .layer-properties-panel input,
.bm-mobile-layout .layer-properties-panel select {
  min-height: 44px;
  padding: 10px 12px !important;
  border-radius: 12px !important;
  font-size: 16px !important;
  background: #ffffff;
}

.bm-mobile-layout .layer-properties-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 16px;
}

@media (max-width: 380px) {
  .bm-mobile-layout .layout-switch-btn {
    padding: 6px 4px;
    font-size: 12px;
  }

  .bm-mobile-layout .mobile-bottom-bar {
    gap: 4px;
    padding-left: 8px;
    padding-right: 8px;
  }
}