/**
 * Font Maker — mobile-only landscape UI (html.mobile-mode).
 * Desktop layout is unchanged when .mobile-mode is absent.
 */

html.mobile-mode {
  --mobile-tabs-h: 50px;
  --mobile-toolbar-h: auto;
  --tabs-h: var(--mobile-tabs-h);
}

/* Portrait: block entire app until landscape */
html.mobile-mode.portrait-locked .app-shell,
html.mobile-mode.portrait-locked .loading-overlay {
  display: none !important;
}

html.mobile-mode.portrait-locked .rotate-prompt {
  display: flex !important;
}

/* ─── Home (landscape) ─── */
html.mobile-mode .home-screen {
  display: grid;
  grid-template-columns: clamp(148px, 24vw, 200px) minmax(0, 1fr);
  grid-template-rows: minmax(0, 1fr);
  align-items: stretch;
  gap: 0.6rem;
  padding: 0.45rem 0.6rem 0.55rem;
  overflow: hidden;
}

html.mobile-mode .home-hero {
  grid-column: 1;
  grid-row: 1;
  flex: none;
  margin: 0;
  padding: 0.15rem 0 0;
  text-align: left;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}

html.mobile-mode .home-loading,
html.mobile-mode .home-empty,
html.mobile-mode .home-content {
  grid-column: 2;
  grid-row: 1;
  flex: none;
  min-width: 0;
  min-height: 0;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

html.mobile-mode .home-title {
  font-size: clamp(1.45rem, 4.5vw, 1.85rem);
  margin-bottom: 0.2rem;
}

html.mobile-mode .home-subtitle {
  font-size: 0.58rem;
  letter-spacing: 0.08em;
  line-height: 1.35;
}

html.mobile-mode .home-section-title {
  text-align: left;
  margin-bottom: 0.45rem;
  font-size: 0.65rem;
}

html.mobile-mode .home-actions-row {
  flex-direction: column;
  align-items: stretch;
  gap: 0.4rem;
  margin-bottom: 0.55rem;
}

html.mobile-mode .home-btn {
  width: 100%;
  min-height: 38px;
  padding: 0.5rem 0.65rem;
  font-size: 0.76rem;
}

html.mobile-mode .font-card-grid {
  grid-template-columns: repeat(auto-fill, minmax(118px, 1fr));
  gap: 0.45rem;
  padding-bottom: 0.35rem;
}

html.mobile-mode .font-card {
  min-height: 96px;
  padding: 0.65rem 0.45rem;
  gap: 0.35rem;
}

html.mobile-mode .font-card-preview {
  font-size: 1.35rem;
}

html.mobile-mode .home-footer-row {
  padding: 0.35rem 0 0;
  justify-content: flex-start;
}

html.mobile-mode .home-btn-about {
  width: 100%;
  max-width: none;
}

/* ─── Workspace shell ─── */
html.mobile-mode.workspace #main {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
  padding-bottom: calc(var(--mobile-tabs-h) + var(--safe-bottom));
}

html.mobile-mode .toolbar {
  flex-shrink: 0;
  flex-direction: column;
  align-items: stretch;
  gap: 0.3rem;
  padding: 0.3rem 0.45rem;
  min-height: 0;
}

html.mobile-mode .toolbar-row {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  min-width: 0;
}

html.mobile-mode .toolbar-row-primary {
  flex-wrap: nowrap;
}

html.mobile-mode .toolbar-row-primary .toolbar-font {
  flex: 1;
  min-width: 0;
  font-size: 0.76rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

html.mobile-mode .toolbar-row-primary .toolbar-font strong {
  display: inline-block;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  vertical-align: bottom;
}

html.mobile-mode .toolbar-row-styles {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 0.05rem;
}

html.mobile-mode .variant-pills {
  flex-shrink: 0;
}

html.mobile-mode .variant-pill {
  padding: 0.26rem 0.48rem;
  font-size: 0.64rem;
  min-height: 28px;
}

html.mobile-mode .toolbar-link-toggle {
  font-size: 0.64rem;
  padding: 0.22rem 0.42rem;
  flex-shrink: 0;
}

html.mobile-mode .toolbar-back,
html.mobile-mode .toolbar-save {
  padding: 0.28rem 0.5rem;
  font-size: 0.72rem;
  min-height: 30px;
}

html.mobile-mode .variant-badge {
  display: none;
}

html.mobile-mode .toolbar-more {
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-input);
  overflow: hidden;
}

html.mobile-mode .toolbar-more summary {
  list-style: none;
  cursor: pointer;
  padding: 0.35rem 0.55rem;
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 500;
}

html.mobile-mode .toolbar-more summary::-webkit-details-marker {
  display: none;
}

html.mobile-mode .toolbar-more summary::before {
  content: "▸ ";
  color: var(--accent);
}

html.mobile-mode .toolbar-more[open] summary::before {
  content: "▾ ";
}

html.mobile-mode .toolbar-more-panel {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.65rem;
  align-items: center;
  padding: 0.35rem 0.5rem 0.45rem;
  border-top: 1px solid var(--border);
}

html.mobile-mode .toolbar-resolution {
  flex: 1 1 auto;
  min-width: 0;
}

html.mobile-mode .toolbar-resolution select {
  max-width: 88px;
  font-size: 0.72rem;
  min-height: 28px;
  padding: 0.2rem 0.35rem;
}

html.mobile-mode .toolbar-weight {
  flex: 1 1 100%;
  margin-left: 0;
}

html.mobile-mode .toolbar-weight input[type="range"] {
  flex: 1;
  min-width: 60px;
}

/* Bottom tab navigation */
html.mobile-mode .tab-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 120;
  min-height: var(--mobile-tabs-h);
  padding: 0 0.15rem var(--safe-bottom);
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  border-bottom: none;
  box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.35);
  justify-content: space-around;
}

html.mobile-mode .tab-btn {
  flex: 1;
  padding: 0.2rem 0.15rem;
  min-height: var(--mobile-tabs-h);
  font-size: 0.58rem;
  letter-spacing: 0.02em;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.1rem;
  line-height: 1.1;
  border-bottom: none;
  margin-bottom: 0;
  border-top: 2px solid transparent;
}

html.mobile-mode .tab-btn.active {
  border-top-color: var(--accent);
  border-bottom-color: transparent;
  background: var(--accent-soft);
}

html.mobile-mode .tab-btn::before {
  font-size: 0.95rem;
  line-height: 1;
  opacity: 0.9;
}

html.mobile-mode .tab-btn[data-tab="draw"]::before { content: "✏"; }
html.mobile-mode .tab-btn[data-tab="preview"]::before { content: "👁"; }
html.mobile-mode .tab-btn[data-tab="layout"]::before { content: "📐"; }
html.mobile-mode .tab-btn[data-tab="gallery"]::before { content: "▦"; }
html.mobile-mode .tab-btn[data-tab="language"]::before { content: "文"; }
html.mobile-mode .tab-btn[data-tab="guide"]::before { content: "?"; }
html.mobile-mode .tab-btn[data-tab="export"]::before { content: "↓"; }

html.mobile-mode .tab-body {
  flex: 1;
  min-height: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* Scrollable tab panels — previews must not be clipped */
html.mobile-mode .tab-panel {
  padding: 0.4rem 0.5rem 0.6rem;
  min-height: 0;
}

html.mobile-mode .tab-panel.active {
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  padding-bottom: calc(var(--mobile-tabs-h) + var(--safe-bottom) + 0.75rem);
}

html.mobile-mode .tab-panel[data-tab-panel="draw"].active {
  overflow: hidden;
  padding-bottom: 0;
}

html.mobile-mode .tab-panel.scroll-panel.active {
  display: block;
  overflow-y: auto;
  padding: 0.4rem 0.5rem calc(var(--mobile-tabs-h) + var(--safe-bottom) + 1rem);
}

/* ─── Draw ─── */
html.mobile-mode .draw-layout {
  grid-template-columns: minmax(128px, 30vw) minmax(0, 1fr);
  grid-template-rows: 1fr;
  gap: 0.4rem;
  height: 100%;
  min-height: 0;
}

html.mobile-mode .draw-sidebar {
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
  height: 100%;
  gap: 0.25rem;
}

html.mobile-mode .draw-sidebar-tools {
  order: -2;
  flex-shrink: 0;
  margin-top: 0;
}

html.mobile-mode .draw-sidebar > .field-label {
  order: -1;
  flex-shrink: 0;
}

html.mobile-mode .char-picker {
  order: 0;
  flex: 1 1 0;
  min-height: 0;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

html.mobile-mode .char-section-row {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.2rem;
}

html.mobile-mode .char-btn {
  max-height: none;
  min-height: 42px;
  padding: 0.18rem 0.12rem;
}

html.mobile-mode .char-glyph {
  font-size: 0.65rem;
}

html.mobile-mode .char-mega-preview {
  flex-shrink: 0;
  margin-top: 0.2rem;
  padding: 0.35rem 0.3rem 0.4rem;
}

html.mobile-mode .char-mega-slot {
  min-height: 56px;
}

html.mobile-mode .char-mega-label {
  font-size: 0.78rem;
}

html.mobile-mode .draw-sidebar-tools .tool-row {
  margin: 0.18rem 0;
  gap: 0.22rem;
}

html.mobile-mode .draw-sidebar-tools .tool-btn {
  padding: 0.26rem 0.35rem;
  min-height: 30px;
  font-size: 0.62rem;
  flex: 1 1 auto;
}

html.mobile-mode .draw-sidebar .hint {
  font-size: 0.55rem;
  line-height: 1.3;
}

html.mobile-mode .field-label {
  font-size: 0.58rem;
  margin-bottom: 0.15rem;
}

html.mobile-mode .draw-editor-col {
  min-height: 0;
  min-width: 0;
}

html.mobile-mode .pixel-wrap {
  touch-action: none;
}

html.mobile-mode .pixel-stage {
  touch-action: none;
}

@media (max-height: 380px) {
  html.mobile-mode .char-section-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  html.mobile-mode .home-title { font-size: 1.25rem; }
  html.mobile-mode .toolbar-more summary { padding: 0.25rem 0.45rem; }
  html.mobile-mode .char-mega-slot { min-height: 44px; }
}

@media (min-height: 381px) and (max-height: 500px) {
  html.mobile-mode .draw-layout {
    grid-template-columns: minmax(136px, 28vw) minmax(0, 1fr);
  }
  html.mobile-mode .char-section-row {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

@media (min-height: 501px) {
  html.mobile-mode .draw-layout {
    grid-template-columns: minmax(148px, 26vw) minmax(0, 1fr);
  }
  html.mobile-mode .char-section-row {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
  html.mobile-mode .char-mega-slot { min-height: 72px; }
}

/* ─── Preview ─── */
html.mobile-mode .preview-panel.active {
  gap: 0.45rem;
  padding-bottom: calc(var(--mobile-tabs-h) + var(--safe-bottom) + 1rem);
}

html.mobile-mode .preview-fixed {
  max-height: none;
  overflow: visible;
  flex-shrink: 0;
}

html.mobile-mode .hero-box {
  padding: 0.45rem;
}

html.mobile-mode #heroCanvas {
  max-width: 100%;
  height: auto !important;
}

html.mobile-mode .type-area {
  min-height: 48px;
  max-height: none;
  font-size: 0.82rem;
  padding: 0.45rem 0.55rem;
}

html.mobile-mode .controls {
  margin: 0.35rem 0;
  gap: 0.4rem;
}

html.mobile-mode .chip {
  font-size: 0.6rem;
  padding: 0.2rem 0.4rem;
}

html.mobile-mode .preview-panel .preview-scroll-box {
  flex: 0 0 auto;
  min-height: 120px;
  max-height: none;
  overflow: auto;
  margin-bottom: 0.5rem;
}

html.mobile-mode .layout-panel.active {
  overflow-y: auto;
  padding-bottom: calc(var(--mobile-tabs-h) + var(--safe-bottom) + 1rem);
}

html.mobile-mode .layout-shell {
  flex-direction: column;
  gap: 0.55rem;
  height: auto;
  min-height: 0;
  overflow: visible;
}

html.mobile-mode .layout-preview-col {
  flex: none;
  min-width: 0;
  max-height: none;
  min-height: 0;
}

html.mobile-mode .layout-controls-col {
  flex: none;
  min-width: 0;
  max-width: none;
  overflow: visible;
}

html.mobile-mode .layout-type-area {
  min-height: 44px;
  max-height: none;
  font-size: 0.78rem;
}

html.mobile-mode .line-preview-stage {
  flex: none;
  min-height: 140px;
  max-height: none;
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  overflow: auto;
  -webkit-overflow-scrolling: touch;
}

html.mobile-mode .metrics-header {
  flex-wrap: wrap;
  gap: 0.35rem;
}

html.mobile-mode .nudge-pad {
  grid-template-columns: repeat(3, 30px);
}

html.mobile-mode .nudge-btn {
  width: 34px;
  height: 34px;
  font-size: 0.85rem;
}

html.mobile-mode .layout-grid {
  grid-template-columns: 1fr;
  gap: 0.45rem;
}

/* ─── Gallery ─── */
html.mobile-mode .glyph-grid {
  grid-template-columns: repeat(auto-fill, minmax(56px, 1fr));
  gap: 0.3rem;
  padding-bottom: 0.5rem;
}

html.mobile-mode .glyph-cell {
  padding: 0.25rem;
}

html.mobile-mode .glyph-mini {
  width: 52px !important;
  height: 46px !important;
}

html.mobile-mode .glyph-label {
  font-size: 0.62rem;
  margin-top: 0.12rem;
}

html.mobile-mode .chart-block h3 {
  margin: 0.5rem 0 0.3rem;
  font-size: 0.58rem;
}

html.mobile-mode .gallery-panel.scroll-panel.active,
html.mobile-mode .tab-panel[data-tab-panel="language"].active,
html.mobile-mode .tab-panel[data-tab-panel="export"].active {
  padding-bottom: calc(var(--mobile-tabs-h) + var(--safe-bottom) + 1rem);
}

/* ─── Language ─── */
html.mobile-mode .language-layout {
  grid-template-columns: 1fr;
  grid-template-rows: auto auto;
  height: auto;
  min-height: 0;
  gap: 0.5rem;
}

html.mobile-mode .language-list {
  max-height: 28vh;
  flex-shrink: 0;
}

html.mobile-mode .lang-item {
  padding: 0.4rem 0.45rem;
}

html.mobile-mode .lang-item-name {
  font-size: 0.76rem;
}

html.mobile-mode .language-editor-col {
  gap: 0.45rem;
  min-height: 0;
}

html.mobile-mode .lang-panel {
  padding: 0.5rem;
}

html.mobile-mode .lang-panel h4 {
  font-size: 0.62rem;
  margin-bottom: 0.35rem;
}

html.mobile-mode .lang-grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.35rem;
}

html.mobile-mode .lang-textarea {
  min-height: 52px;
  font-size: 0.75rem;
}

html.mobile-mode .lang-table {
  font-size: 0.68rem;
}

html.mobile-mode .lang-preview-box .preview-scroll-box {
  max-height: none;
  min-height: 100px;
  overflow: auto;
  margin-bottom: 0.25rem;
}

/* ─── Guide & Export ─── */
html.mobile-mode .guide-panel {
  padding: 0.2rem 0.15rem 1rem;
}

html.mobile-mode .guide-section {
  padding: 0.6rem 0.65rem;
  margin-bottom: 0.65rem;
}

html.mobile-mode .guide-section h3 {
  font-size: 0.82rem;
}

html.mobile-mode .guide-section p,
html.mobile-mode .guide-section li {
  font-size: 0.72rem;
}

html.mobile-mode .export-panel {
  padding: 1rem 0.5rem 1.5rem;
}

html.mobile-mode .export-btn {
  width: 100%;
  max-width: 320px;
}

/* ─── Overlays ─── */
html.mobile-mode .about-dialog {
  width: min(100%, 340px);
  max-height: 90vh;
  overflow-y: auto;
}

html.mobile-mode .about-overlay {
  z-index: 380;
  padding: 0.75rem;
}

html.mobile-mode .loading-overlay {
  z-index: 400;
}