.mobile-hamburger { display: none; }
.mobile-collapse-caret { display: none; }
.mob-menu-panel { display: none; }

@media (max-width: 700px), (hover: none) and (pointer: coarse) {

  html, body { overflow-x: hidden; }
  .app {
    height: 100vh;
    height: 100svh;
    grid-template-rows: 48px auto 1fr;
    grid-template-columns: minmax(0, 1fr);
    width: 100vw;
    max-width: 100vw;
    overflow-x: hidden;
  }
  .status-bar { display: none; }
  #cutModeRoot, #cuttingModeRoot, #designModeRoot {
    min-width: 0;
    max-width: 100vw;
  }

  .app-header {
    gap: 8px;
    padding: 0 8px;
    overflow: hidden;
  }
  .brand {
    padding-right: 6px;
    border-right: none;
    gap: 7px;
    flex-shrink: 0;
  }
  .brand img { width: 26px; height: 26px; }
  .brand-name { display: none; }

  .mode-pill-toggle {
    position: static;
    left: auto; top: auto;
    transform: none;
    margin: 0 auto;
    padding: 2px;
  }
  .mode-pill { padding: 6px 11px; font-size: 11.5px; }
  .mode-pill-lg { padding: 6px 13px; }

  body.is-phone .mode-pill[data-mode="design"],
  body.is-phone .mode-pill[data-mode="render"] { opacity: 0.55; white-space: nowrap; }
  body.is-phone .mode-pill .pill-desktop { display: inline-block; margin-left: 4px; vertical-align: -1px; line-height: 0; }
  body.is-phone .mode-pill .pill-desktop .ic { width: 0.95em; height: 0.95em; vertical-align: middle; margin: 0; opacity: 0.85; }
  body.is-phone .mode-pill.locked .pill-desktop { display: none; }
  body.is-phone .mob-menu-settings { border-top: 1px solid var(--g-divider); }

  .header-user { gap: 6px; flex-shrink: 0; }
  #btnAuth.header-auth { display: none; }

  .menu-bar { display: none; }
  .app-header .mobile-hamburger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px; height: 34px;
    flex-shrink: 0;
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-sm);
    background: var(--bg-3);
    color: var(--text-0);
    font-size: 17px;
    cursor: pointer;
  }
  body.menu-open .menu-bar {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    position: fixed;
    top: 48px; left: 0; right: 0;
    z-index: 60;
    background: var(--bg-1);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-2);
    padding: 6px;
    gap: 2px;
    max-height: calc(100svh - 48px);
    overflow-y: auto;
  }
  body.menu-open .menu-root { width: 100%; }
  body.menu-open .menu-root > .menu-btn {
    width: 100%;
    text-align: left;
    padding: 12px 14px;
    font-size: 14px;
  }
  body.menu-open .menu-dropdown {
    position: static !important;
    display: none;
    box-shadow: none;
    border: none;
    background: var(--bg-2);
    border-radius: var(--radius-sm);
    margin: 2px 0 4px;
  }
  body.menu-open .menu-root.open > .menu-dropdown { display: block; }
  body.menu-open .menu-item { padding: 11px 16px; font-size: 13px; }
  body.menu-open .menu-item .kbd { display: none; }

  body.menu-open .menu-root[data-menu="file"],
  body.menu-open .menu-root[data-menu="edit"],
  body.menu-open .menu-root[data-menu="view"],
  body.menu-open .menu-item[data-action="help-shortcuts"] {
    display: none;
  }

  body.menu-open::before {
    content: "";
    position: fixed;
    inset: 48px 0 0 0;
    background: rgba(0,0,0,0.45);
    z-index: 55;
  }
  body.menu-open .app-header { z-index: 60; }

  .profile-card-actions .profile-open[data-mode="design"] { display: none; }

  .modal.ri-chart-modal,
  .modal.gemdb-modal {
    width: 96vw;
    max-width: 96vw;
    height: 90vh;
    max-height: 90vh;
  }

  .ri-toolbar,
  .gemdb-toolbar {
    flex-wrap: wrap;
    gap: 8px;
    padding: 10px 12px;
  }
  .ri-toolbar .ri-search,
  .gemdb-toolbar .ri-search { flex: 1 1 100%; }
  .ri-sort-btn { padding: 9px 16px; font-size: 12px; }
  .ri-count { margin-left: auto; }

  .modal.ri-chart-modal .lap-colhead { display: none; }
  .modal.ri-chart-modal .lap-row {
    display: block;
    position: relative;
    padding: 13px 34px 13px 16px;
    cursor: pointer;
  }
  .modal.ri-chart-modal .lap-row::after {
    content: "▸";
    position: absolute;
    right: 15px;
    top: 13px;
    color: var(--text-3);
    font-size: 11px;
  }
  .modal.ri-chart-modal .lap-row.lap-open::after { content: "▾"; }
  .modal.ri-chart-modal .lap-row .ri-col-name {
    display: block;
    font-size: 14px;
  }
  .modal.ri-chart-modal .lap-row > span:not(.ri-col-name) { display: none; }
  .modal.ri-chart-modal .lap-row.lap-open > span:not(.ri-col-name) {
    display: block;
    margin-top: 4px;
  }
  .modal.ri-chart-modal .lap-row.lap-open .ri-col-name { margin-bottom: 6px; }
  .modal.ri-chart-modal .lap-row > span:not(.ri-col-name)::before {
    color: var(--text-3);
    font-weight: 700;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.4px;
  }
  .pleo-guide-modal .lap-row > span:nth-child(2)::before { content: "Optic — "; }
  .pleo-guide-modal .lap-row > span:nth-child(3)::before { content: "Pleochroism — "; }
  .pleo-guide-modal .lap-row > span:nth-child(4)::before { content: "Axis colors — "; }
  .pleo-guide-modal .lap-row > span:nth-child(5)::before { content: "Orientation — "; }
  .cleave-guide-modal .lap-row > span:nth-child(2)::before { content: "Cleavage — "; }
  .cleave-guide-modal .lap-row > span:nth-child(3)::before { content: "Toughness — "; }
  .cleave-guide-modal .lap-row > span:nth-child(4)::before { content: "Handling — "; }
  .heat-guide-modal .lap-row > span:nth-child(2)::before { content: "Heat — "; }
  .heat-guide-modal .lap-row > span:nth-child(3)::before { content: "Chemicals — "; }
  .heat-guide-modal .lap-row > span:nth-child(4)::before { content: "Ultrasonic — "; }
  .heat-guide-modal .lap-row > span:nth-child(5)::before { content: "Bench note — "; }
  .lap-guide-modal .lap-row > span:nth-child(2)::before { content: "Mohs — "; }
  .lap-guide-modal .lap-row > span:nth-child(3)::before { content: "Prepolish — "; }
  .lap-guide-modal .lap-row > span:nth-child(4)::before { content: "Polish — "; }
  .lap-guide-modal .lap-row > span:nth-child(5)::before { content: "Lap — "; }
  .lap-guide-modal .lap-row > span:nth-child(6)::before { content: "Notes — "; }

  .gemdb-mobile-bar {
    display: block;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-soft);
  }
  .gemdb-select {
    width: 100%;
    padding: 10px;
    font-size: 14px;
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-sm);
    background: var(--bg-2);
    color: var(--text-0);
  }
  .gemdb-list-col { display: none; }
  .gemdb-detail { min-height: 0; padding: 16px; }
  .gemdb-cards { grid-template-columns: repeat(2, 1fr); }

  .mob-menu-wrap { position: relative; display: inline-flex; }
  .mob-menu-btn { display: inline-flex; align-items: center; gap: 5px; white-space: nowrap; }
  .mob-menu-caret { font-size: 9px; opacity: 0.75; }

  .mob-menu-panel {
    position: fixed;
    z-index: 60;
    display: none;
    flex-direction: column;
    gap: 4px;
    min-width: 200px;
    max-width: min(280px, calc(100vw - 24px));
    max-height: min(60svh, calc(100svh - 24px));
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: 6px;
    background: var(--chip-float-bg);
    backdrop-filter: blur(14px) saturate(1.15);
    -webkit-backdrop-filter: blur(14px) saturate(1.15);
    border: 1px solid var(--border-soft);
    border-radius: 12px;
    box-shadow: 0 10px 26px rgba(0, 0, 0, 0.4);
  }
  .mob-menu-panel.open { display: flex; }

  .mob-menu-panel .view-chip {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    width: 100%;
    box-sizing: border-box;
    border-radius: 8px;
    border-color: transparent;
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    padding: 11px 10px 11px 30px;
    font-size: 13px;
    text-align: left;
    white-space: nowrap;
  }
  .mob-menu-panel .view-chip:active { background: var(--overlay-field-bg, rgba(255, 255, 255, 0.08)); }

  .mob-menu-panel .view-chip::before {
    content: "";
    width: 20px;
    margin-left: -20px;
    flex: 0 0 20px;
    color: var(--gold);
    font-weight: 700;
  }
  .mob-menu-panel .view-chip.active::before { content: "✓"; }
  .mob-menu-panel[data-mob-menu="view"] .view-chip {
    padding-left: 10px;
  }
  .mob-menu-panel[data-mob-menu="view"] .view-chip::before { display: none; }

  .mob-menu-sep {
    height: 1px;
    margin: 3px 6px;
    background: var(--border-soft);
  }

  .mob-menu-panel #illumWrap,
  .mob-menu-panel #spotWrap {
    width: 100%;
    align-self: stretch;
    gap: 4px;
  }
  .mob-menu-panel #spotSliders {
    width: 100%;
    box-sizing: border-box;
    margin: 2px 0 4px;
    padding: 8px 10px;
    background: var(--overlay-field-bg, rgba(255, 255, 255, 0.06));
    border-radius: 8px;
  }
  .mob-menu-panel #spotSliders input[type="range"] { width: 100%; }

  .mob-menu-panel .meas-panel {
    position: static;
    width: 100%;
    box-sizing: border-box;
    margin: 2px 0 4px;
    padding: 8px 10px;
    background: var(--overlay-field-bg, rgba(255, 255, 255, 0.06));
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    box-shadow: none;
    border: 0;
    border-radius: 8px;
  }
  .mob-menu-panel .meas-panel .meas-panel-title { font-size: 11px; }
  .mob-menu-panel .rough-dim-fields { display: flex; flex-direction: column; gap: 6px; }
  .mob-menu-panel .rough-dim { display: flex; align-items: center; gap: 8px; }
  .mob-menu-panel .rough-dim .num-field { flex: 1; min-width: 0; font-size: 16px; padding: 6px 8px; }
  .mob-menu-panel .rough-weights { margin-top: 8px; display: flex; flex-direction: column; gap: 4px; }

  #cutModeRoot.cut-mode-root {
    padding: 8px 8px 0;
    gap: 8px;
    overflow: hidden;
    position: relative;
  }
  #cutModeRoot .view-toolbar { bottom: 80px; }
  #cutModeRoot .axis-gizmo { display: none; }

  #cutModeRoot [data-catalog-maximize],
  #cuttingModeRoot [data-cutting-maximize] { display: none; }

  #cutModeRoot #scopeBtn,
  #cutModeRoot #scopeMenu,
  #cutModeRoot #scopeLegend,
  #cutModeRoot #scopeAperture { display: none !important; }

  #cutModeRoot .view-toolbar > .view-chip-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
  #cutModeRoot .view-toolbar > .view-chip-row .cut-export-wrap { order: -1; }

  #cutModeRoot .cut-toolbar {
    gap: 8px 10px;
    padding: 8px 10px;
    min-height: 0;
    row-gap: 8px;
  }
  #cutModeRoot .cut-select-wrap {
    flex: 1 1 100%;
    gap: 8px;
  }
  #cutModeRoot .cut-select-wrap .field-label { display: none; }
  #cutModeRoot .design-browse-btn {
    width: 100%;
    flex: 1;
    padding: 10px 12px;
    font-size: 13px;
  }
  #cutModeRoot .cut-material-btn {
    flex: 1 1 100%;
    min-height: 40px;
  }
  #cutModeRoot .cut-material-btn,
  #cuttingModeRoot .cut-material-btn {
    width: 100%;
    max-width: none;
    min-width: 0;
    box-sizing: border-box;
  }
  #cutModeRoot #cutOpenInDesignBtn,
  #cutModeRoot #cutPrintBtn { display: none; }
  #cutModeRoot #cutOpenInCutBtn {
    flex: 1 1 100%;
    min-height: 40px;
    justify-content: center;
  }

  #cutModeRoot .cut-layout {
    display: flex;
    flex-direction: column;
    grid-template-columns: none;
    flex: 1;
    min-height: 0;
    gap: 0;
  }
  #cutModeRoot .cut-wire-col {
    order: 0;
    flex: 1;
    min-height: 0;
    overflow: hidden;
  }
  #cutModeRoot .cut-wire-col .pane { height: 100%; }

  #cutModeRoot .cut-layout,
  #cutModeRoot .cut-col,
  #cutModeRoot .pane,
  #cutModeRoot .pane-head,
  #cutModeRoot .pane-body {
    min-width: 0;
    max-width: 100%;
  }

  #cutModeRoot .pane-chip,
  #cutModeRoot .view-chip {
    padding: 8px 12px;
    font-size: 12px;
  }
  #cutModeRoot .pane-head { flex-wrap: wrap; }
  #cutModeRoot .pane-chip-row {
    gap: 6px;
    row-gap: 6px;
    flex-wrap: wrap;
    min-width: 0;
  }

  #mobileSheet {
    position: absolute;
    left: 0; right: 0; bottom: 0;
    z-index: 30;
    background: var(--bg-1);
    border-top: 1px solid var(--border);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    box-shadow: 0 -8px 30px rgba(0,0,0,0.5);
    display: flex;
    flex-direction: column;
    height: 86svh;
    transform: translateY(calc(86svh - 72px));
    transition: transform 0.28s cubic-bezier(0.4,0,0.2,1);
    touch-action: none;
    will-change: transform;
  }
  body.sheet-expanded #mobileSheet {
    transform: translateY(0);
  }
  body.sheet-dragging #mobileSheet { transition: none; }

  .mobile-sheet-handle {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 8px 12px 6px;
    cursor: grab;
  }
  .mobile-sheet-grip {
    width: 40px; height: 4px;
    border-radius: 2px;
    background: var(--text-3);
  }
  .mobile-sheet-titlebar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    gap: 10px;
  }
  .mobile-sheet-title {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.6px;
    text-transform: uppercase;
    color: var(--text-2);
  }
  .mobile-sheet-caret {
    font-size: 12px;
    color: var(--text-3);
    transition: transform 0.28s ease;
  }
  body.sheet-expanded .mobile-sheet-caret { transform: rotate(180deg); }

  .mobile-sheet-body {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: 0 4px 16px;
  }
  #mobileSheet .cut-col {
    overflow: visible;
    margin-bottom: 10px;
  }
  #mobileSheet .cut-col .pane {
    height: auto !important;
    border: none;
    background: transparent;
  }
  #mobileSheet .pane-body { overflow: visible; }
  #mobileSheet .cut-breakdown-body,
  #mobileSheet .cut-steps-list { height: auto; }
  #mobileSheet [data-catalog-maximize] { display: none; }

  #cuttingModeRoot.cut-mode-root {
    padding: 8px 8px 0;
    gap: 8px;
    position: relative;
    overflow: hidden;
    padding-bottom: 66px;
  }

  #cuttingModeRoot .cut-toolbar {
    gap: 8px 10px;
    padding: 8px 10px;
    min-height: 0;
    row-gap: 8px;
  }
  #cuttingModeRoot .cut-select-wrap { flex: 1 1 100%; gap: 8px; }
  #cuttingModeRoot .cut-select-wrap .field-label { display: none; }
  #cuttingModeRoot .design-browse-btn { width: 100%; flex: 1; padding: 10px 12px; font-size: 13px; }
  #cuttingModeRoot .cut-material-btn { flex: 1 1 100%; min-height: 40px; }

  #cuttingModeRoot .cutting-layout {
    display: flex;
    flex-direction: column;
    grid-template-columns: none;
    flex: none;
    gap: 0;
    min-width: 0;
  }
  #cuttingModeRoot .cutting-col-design { display: none; }
  #cuttingModeRoot .cutting-col-rough {
    order: 0;
    flex: none;
    height: 32svh;
    min-height: 0;
    overflow: hidden;
  }
  #cuttingModeRoot .cutting-col-machine {
    order: 1;
    flex: none;
    height: 26svh;
    min-height: 0;
    overflow: hidden;
  }
  #cuttingModeRoot .cutting-col-rough .pane,
  #cuttingModeRoot .cutting-col-machine .pane { height: 100%; }
  #cuttingModeRoot .cutting-machine-body { min-width: 0; }
  #cuttingModeRoot .axis-gizmo { display: none; }
  #cuttingModeRoot .marker-value { display: none; }

  #cuttingModeRoot .cut-col.mobile-collapsed { height: auto; }
  #cuttingModeRoot .cut-col.mobile-collapsed .pane-body { display: none; }
  .mobile-collapsible-head { cursor: pointer; }
  #cuttingModeRoot .mobile-collapsible-head { justify-content: flex-start; }
  #cuttingModeRoot .mobile-collapsible-head .pane-chip-row { margin-left: auto; }
  .mobile-collapse-caret {
    display: inline-block;
    font-size: 12px;
    color: var(--text-3);
    margin-right: 6px;
    transition: transform 0.2s ease;
    flex-shrink: 0;
  }
  .cut-col.mobile-collapsed .mobile-collapse-caret { transform: rotate(-90deg); }
  #cuttingModeRoot .rough-controls { display: none; }

  #cuttingModeRoot .cutting-layout,
  #cuttingModeRoot .cut-col,
  #cuttingModeRoot .pane,
  #cuttingModeRoot .pane-head,
  #cuttingModeRoot .pane-body { min-width: 0; max-width: 100%; }
  #cuttingModeRoot .pane-head { flex-wrap: wrap; }
  #cuttingModeRoot .pane-chip-row { flex-wrap: wrap; gap: 6px; min-width: 0; }
  #cuttingModeRoot .pane-chip,
  #cuttingModeRoot .view-chip { padding: 7px 11px; font-size: 12px; }

  #cuttingModeRoot .cutting-instructions-pane {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
  }
  #cuttingModeRoot .cutting-step-nav { flex-wrap: wrap; gap: 6px; row-gap: 6px; }
  #cuttingModeRoot .cutting-step-nav .cutting-step-counter,
  #cuttingModeRoot .cutting-step-nav #cuttingStepPrev,
  #cuttingModeRoot .cutting-step-nav #cuttingStepNext,
  #cuttingModeRoot .cutting-step-nav [data-cutting-maximize] { display: none; }
  #cuttingModeRoot .cutting-step-nav .cutting-order-label { display: none; }
  #cuttingModeRoot .cutting-step-nav .pane-chip-row .pane-chip:not(.active) { display: none; }

  #cuttingModeRoot .cutting-steps-list { padding: 10px 10px 20px; }
  #cuttingModeRoot .cutting-steps-list .cut-step-item { padding: 10px 12px; }
  #cuttingModeRoot .cutting-steps-list .cut-step-item.current {
    padding: 14px 14px;
    border-radius: var(--radius-md);
  }
  #cuttingModeRoot .cutting-steps-list .cut-step-item.current .cs-head {
    font-size: 15px;
    flex-wrap: wrap;
    gap: 4px 12px;
  }
  #cuttingModeRoot .cutting-steps-list .cut-step-item.current .cs-name {
    font-size: 22px;
    letter-spacing: 0.5px;
  }
  #cuttingModeRoot .cutting-steps-list .cut-step-item.current .cs-instr {
    font-size: 14px;
    line-height: 1.5;
    margin-top: 6px;
  }
  #cuttingModeRoot .cutting-steps-list .cut-step-item.current .cs-idx {
    font-size: 14px;
    line-height: 1.5;
    margin-top: 6px;
  }

  .mobile-cut-nav {
    position: fixed;
    left: 0; right: 0; bottom: 0;
    z-index: 45;
    display: flex;
    align-items: stretch;
    gap: 6px;
    padding: 8px 8px calc(8px + env(safe-area-inset-bottom, 0px));
    background: var(--bg-1);
    border-top: 1px solid var(--border);
    box-shadow: 0 -6px 24px rgba(0,0,0,0.45);
  }
  .mcn-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 48px;
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-md);
    background: var(--bg-3);
    color: var(--text-0);
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    touch-action: manipulation;
  }
  .mcn-btn:active { transform: translateY(1px); }
  .mcn-next {
    flex: 1.3;
    background: linear-gradient(180deg, var(--gold), #cf9f52);
    color: #221a0c;
    border-color: transparent;
  }
  .mcn-btn:disabled { opacity: 0.4; }
  .mcn-center {
    flex: 1.1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    min-width: 0;
  }
  .mcn-counter {
    font-size: 12px;
    font-weight: 700;
    color: var(--text-1);
    font-variant-numeric: tabular-nums;
    text-align: center;
    line-height: 1.15;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
  }
  .mcn-wake {
    font-size: 10px;
    letter-spacing: 0.3px;
    color: var(--text-3);
    border: 1px solid var(--border-soft);
    border-radius: 999px;
    padding: 3px 9px;
    background: var(--bg-2);
    cursor: pointer;
    white-space: nowrap;
  }
  .mcn-wake.on {
    color: #221a0c;
    background: var(--gold);
    border-color: transparent;
  }

  .modal.design-selector-modal {
    width: 100vw;
    max-width: 100vw;
    height: 100svh;
    height: 100vh;
    height: 100svh;
    max-height: 100svh;
    border-radius: 0;
    border: none;
  }
  .design-selector-modal .design-selector-body {
    display: flex;
    flex-direction: column;
    gap: 0;
  }
  .design-selector-modal .design-filter-panel {
    display: none;
    border-right: none;
    border-bottom: 1px solid var(--border-soft);
    max-height: 55svh;
    padding: 14px 16px;
  }
  .design-selector-modal.filters-open .design-filter-panel { display: flex; }
  .design-selector-modal .design-results-panel {
    flex: 1;
    min-height: 0;
    padding: 10px 12px 12px;
  }
  .design-selector-modal .design-results-list { gap: 8px; }
  .design-selector-modal .design-row {
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 8px 10px;
    padding: 12px;
  }
  .design-selector-modal .design-row-main { flex: 1 1 100%; order: 0; }
  .design-selector-modal .design-row-name { white-space: normal; }
  .design-selector-modal .design-row-thumbs { order: 1; }
  .design-selector-modal .design-row-stats { order: 2; margin-left: auto; }
  .design-selector-modal .design-thumb-img { width: 64px; height: 64px; }
  .df-filters-toggle {
    flex-shrink: 0;
    border: 1px solid var(--border-soft);
    background: var(--bg-2);
    color: var(--text-1);
    font-size: 12px;
    font-weight: 600;
    padding: 6px 12px;
    border-radius: 999px;
    cursor: pointer;
    touch-action: manipulation;
  }
  .df-filters-toggle.on {
    background: var(--gold);
    color: #221a0c;
    border-color: transparent;
  }

  input[type="range"] { height: 28px; }
  .btn, .view-chip, .pane-chip, .menu-btn { touch-action: manipulation; }
  input[type="text"],
  input[type="number"],
  input[type="search"],
  input[type="email"],
  input[type="password"],
  select,
  textarea { font-size: 16px; }
}

@media (max-width: 380px) {
  .mode-pill { padding: 6px 9px; font-size: 11px; }
  .brand-name { font-size: 12px; }
}

.mobile-toast {
  position: fixed;
  left: 50%;
  bottom: 88px;
  transform: translate(-50%, 12px);
  max-width: 84vw;
  z-index: 200;
  background: var(--bg-4);
  color: var(--text-0);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-2);
  padding: 11px 16px;
  font-size: 13px;
  line-height: 1.35;
  text-align: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease, transform 0.22s ease;
}
.mobile-toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

@media (max-width: 700px) {

  .modal.manual-modal {
    width: 96vw;
    max-width: 96vw;
    height: 92vh;
    max-height: 92vh;
  }

  .modal.ri-chart-modal .ri-colhead {
    display: block;
    padding: 8px 14px 18px;
  }
  .modal.ri-chart-modal .ri-colhead > .ri-col-name,
  .modal.ri-chart-modal .ri-colhead > .ri-col-num { display: none; }
  .modal.ri-chart-modal .ri-colhead > .ri-col-axis { display: block; }
  .modal.ri-chart-modal.combo-chart-modal .ri-colhead { padding-bottom: 6px; }

  .modal.ri-chart-modal .ri-row {
    display: block;
    padding: 11px 14px 12px;
    min-height: 0;
    border-bottom: 1px solid var(--border-soft);
  }
  .modal.ri-chart-modal .ri-row:hover { background: none; }
  .modal.ri-chart-modal .ri-row .ri-col-name {
    display: block;
    white-space: normal;
    overflow: visible;
    text-overflow: clip;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 600;
    line-height: 1.3;
    color: var(--cream-dim);
  }
  .modal.ri-chart-modal .ri-row .ri-col-axis {
    display: block;
    margin-bottom: 9px;
  }
  .modal.ri-chart-modal .ri-row .ri-track {
    height: 11px;
    border-radius: 5.5px;
  }
  .modal.ri-chart-modal .ri-row .ri-bar.ri-dot {
    width: 11px;
    margin-left: -5.5px;
  }
  .modal.ri-chart-modal .ri-row .ri-track.combo-track {
    height: 22px;
    border-radius: 6px;
  }

  .modal.ri-chart-modal .ri-row .ri-col-num {
    display: inline-block;
    margin: 0 14px 0 0;
    font-size: 12.5px;
    line-height: 1.4;
    text-align: left;
    color: var(--text-1);
  }
  .modal.ri-chart-modal .ri-row .ri-col-num::before {
    color: var(--text-3);
    font: 700 10px var(--font-ui);
    text-transform: uppercase;
    letter-spacing: 0.4px;
  }

  .modal.ri-chart-modal .ri-row > span:nth-child(3)::before { content: "RI — "; }
  .modal.ri-chart-modal .ri-row > span:nth-child(4)::before { content: "Biref. — "; }
  .modal.ri-chart-modal .ri-row > span:nth-child(5)::before { content: "Crit. ∠ — "; }
  .modal.ri-chart-modal.sg-chart-modal .ri-row > span:nth-child(3)::before { content: "SG — "; }
  .modal.ri-chart-modal.sg-chart-modal.mohs-chart-modal .ri-row > span:nth-child(3)::before { content: "Mohs — "; }
  .modal.ri-chart-modal.disp-chart-modal .ri-row > span:nth-child(3)::before { content: "DI — "; }
  .modal.ri-chart-modal.disp-chart-modal .ri-row > span:nth-child(4)::before { content: "vs diamond — "; }
  .modal.ri-chart-modal.combo-chart-modal .ri-row > span:nth-child(5)::before { content: "DI — "; }
  .modal.ri-chart-modal.combo-chart-modal .ri-row > span:nth-child(6)::before { content: "vs diamond — "; }

  .ri-toolbar .ri-sort-group { flex: 0 0 auto; }
  .ri-toolbar .combo-legend {
    flex: 1 1 100%;
    white-space: normal;
    line-height: 1.6;
    font-size: 11px;
  }
  .ri-toolbar #dpCurveMat {
    flex: 1 1 100%;
    max-width: none !important;
  }
  .modal.ri-chart-modal #dpCurve {
    flex: 1 1 auto;
    min-height: 0;
    overflow-y: auto;
  }

  .modal.ri-chart-modal .modal-foot.ri-foot {
    flex-wrap: wrap;
    gap: 8px;
    padding: 10px 14px;
  }
  .modal.ri-chart-modal .ri-foot .ri-note {
    flex: 1 1 100%;
    max-height: 4.4em;
    overflow-y: auto;
    font-size: 11px;
    line-height: 1.45;
  }
  .modal.ri-chart-modal .ri-foot .btn { flex: 1 1 100%; }

  .man-wrap { flex-direction: column; }
  .man-toc {
    flex: 0 0 auto;
    display: flex;
    gap: 6px;
    padding: 9px 12px;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    border-right: none;
    border-bottom: 1px solid var(--border-soft);
  }
  .man-toc::-webkit-scrollbar { display: none; }
  .man-toc-head { display: none; }
  .man-toc-link {
    flex: 0 0 auto;
    margin: 0;
    padding: 7px 13px;
    font-size: 12.5px;
    white-space: nowrap;
    background: var(--bg-3);
    border: 1px solid var(--border-soft);
    border-radius: 999px;
  }
  .man-toc-link.active {
    background: var(--accent-soft);
    border-color: var(--accent);
    color: var(--accent);
  }
  .man-content { padding: 4px 16px 48px; }

  .man-sec { padding-top: 18px; }
  .man-sec h3 { font-size: 18px; margin-bottom: 12px; }
  .man-sec h4 { font-size: 13px; }
  .man-sec p,
  .man-sec li { font-size: 14.5px; line-height: 1.65; }
  .man-sec ul { padding-left: 18px; }
  .man-gloss dt { font-size: 14px; }
  .man-gloss dd { font-size: 14px; line-height: 1.6; }
  .man-ex-note { font-size: 13.5px; line-height: 1.6; }
  .man-ex-step { padding-left: 11px; }
  .man-ex-step h5 { font-size: 14px; }

  .man-fig { padding: 10px; margin: 12px 0 14px; }
  .man-fig-svg,
  .man-fig-svg.tall { max-width: 100%; }
  .man-fig-cap { font-size: 12px; }
  .man-shot-img { max-width: 100%; height: auto; }
  .man-shot figcaption { font-size: 12px; }
  .man-ex .man-shot,
  .man-ex-step .man-shot { max-width: 100%; }

  .man-kbrow {
    flex-wrap: wrap;
    gap: 4px 14px;
    padding: 7px 0;
    font-size: 13.5px;
  }
  .man-kbrow > span:first-child { flex: 0 0 auto; }
  .man-kbrow > span:last-child { flex: 1 1 auto; text-align: right; }

  .modal.manual-modal .modal-foot {
    flex-wrap: wrap;
    gap: 8px;
    padding: 10px 14px;
  }
  .man-foot-note { flex: 1 1 100%; font-size: 10.5px; }
  .modal.manual-modal .modal-foot .btn { flex: 1 1 100%; }
}

@media (max-width: 700px), (hover: none) and (pointer: coarse) {
  .app-header { -webkit-backdrop-filter: none; backdrop-filter: none; background: var(--g-sheet-strong); }
  .app-header .mobile-hamburger {
    width: 34px; height: 34px;
    border-radius: 50%;
    background: var(--g-fill);
    border: 1px solid var(--g-rim);
    color: var(--text-0);
    box-shadow: inset 0 1px 0 var(--g-hi), inset 0 -1px 0 var(--g-lo), var(--g-shadow);
    font-size: 16px;
  }
  .app-header .mobile-hamburger .ic { width: 1.15em; height: 1.15em; vertical-align: middle; margin: 0; }
  .app-header .mobile-hamburger:active { transform: scale(0.97); background: var(--g-fill-press); box-shadow: inset 0 1px 2px var(--g-lo); }
  body.menu-open .menu-bar {
    background: var(--g-sheet-strong);
    border-bottom: 1px solid var(--g-rim-strong);
    box-shadow: inset 0 1px 0 var(--g-hi), var(--g-shadow-lift);
    -webkit-backdrop-filter: blur(28px) saturate(1.5); backdrop-filter: blur(28px) saturate(1.5);
  }
  .mob-menu-note { padding: 10px 14px 12px; font-size: 11.5px; line-height: 1.4; color: var(--text-3); border-top: 1px solid var(--g-divider); }

  .mobile-cut-nav {
    background: var(--g-sheet-strong);
    border-top: 1px solid var(--g-rim-strong);
    box-shadow: inset 0 1px 0 var(--g-hi), 0 -8px 30px rgba(0, 0, 0, 0.18);
    -webkit-backdrop-filter: blur(20px) saturate(1.4); backdrop-filter: blur(20px) saturate(1.4);
  }
  .mcn-btn {
    border-radius: 999px;
    background: var(--g-fill);
    border: 1px solid var(--g-rim);
    color: var(--text-0);
    box-shadow: inset 0 1px 0 var(--g-hi), inset 0 -1px 0 var(--g-lo), var(--g-shadow);
  }
  .mcn-btn:active { transform: scale(0.97); background: var(--g-fill-press); box-shadow: inset 0 1px 2px var(--g-lo); }
  .mcn-next {
    background: var(--g-primary);
    border-color: color-mix(in srgb, var(--accent) 70%, white);
    color: var(--accent-ink);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.45), inset 0 -1px 0 rgba(0, 0, 0, 0.18), 0 2px 6px color-mix(in srgb, var(--accent) 35%, transparent), var(--g-shadow);
  }
  .mcn-next:active { background: var(--g-primary); }
  .mcn-wake {
    background: var(--g-fill);
    border: 1px solid var(--g-rim);
    color: var(--text-2);
    box-shadow: inset 0 1px 0 var(--g-hi);
  }
  .mcn-wake.on { background: var(--g-active); border-color: color-mix(in srgb, var(--accent) 55%, var(--g-rim)); color: var(--accent); }
  .mcn-wake .ic { width: 1.05em; height: 1.05em; vertical-align: -0.18em; margin-right: 2px; }

  .df-filters-toggle { background: var(--g-fill); border: 1px solid var(--g-rim); color: var(--text-0); box-shadow: inset 0 1px 0 var(--g-hi), var(--g-shadow); }
  .df-filters-toggle.on { background: var(--g-active); border-color: color-mix(in srgb, var(--accent) 55%, var(--g-rim)); color: var(--accent); }

  #cutModeRoot #cutPaneTitle { flex: 1 1 auto; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

  #cuttingModeRoot .cutting-col-rough { height: 38svh; }
  #cuttingModeRoot .cutting-steps-list {
    scroll-padding-top: 12px;
    -webkit-mask-image: linear-gradient(to bottom, transparent, #000 6px, #000 calc(100% - 18px), transparent);
    mask-image: linear-gradient(to bottom, transparent, #000 6px, #000 calc(100% - 18px), transparent);
  }
}