.status-toggle,
.icon-btn,
.drawing-tab{
      transition: background-color 0.16s ease, border-color 0.16s ease, color 0.16s ease, transform 0.12s ease;
    }.panel-header > span[data-i18n]{
      font-weight: 600;
      color: var(--text-bright);
      text-transform: uppercase;
    }.settings-section{
      padding: 12px;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      background: rgba(255,255,255,0.025);
      margin-bottom: 12px;
    }.settings-section:last-child{ margin-bottom: 0; }.settings-section-title{
      color: var(--text-bright);
      font-weight: 700;
      font-size: 11px;
      text-transform: uppercase;
      letter-spacing: 0.55px;
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }.settings-section-title::before{
      content: '';
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--accent);
      box-shadow: 0 0 0 3px var(--accent-active-bg);
    }.settings-mini-row{
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
      margin-top: 10px;
      color: var(--text-muted);
      font-family: var(--font-mono);
      font-size: 11px;
    }.settings-mini-row b{ color: var(--text-bright); }.viewport-wrap.canvas-light .coord-badge,
.viewport-wrap.canvas-light .snap-badge{
      background-color: rgba(255,255,255,0.88);
      color: #1f2937;
      border-color: rgba(17,24,39,0.18);
    }.viewport-wrap.canvas-light .snap-badge b{ color: var(--accent); }

    @media (max-width: 980px) {.commandbar{ grid-template-columns: 1fr; gap: 6px; padding: 6px 10px; }.command-input{ max-width: none; }
    }.row-item.layer-row{
      cursor: default;
      align-items: center;
      padding-right: 6px;
    }.layer-name{
      flex: 1;
      min-width: 0;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
      cursor: pointer;
    }.layer-actions{
      display: flex;
      align-items: center;
      gap: 4px;
      margin-left: auto;
      flex-shrink: 0;
    }.layer-mini-btn{
      min-width: 28px;
      height: 24px;
      display: inline-grid;
      place-items: center;
      padding: 0 7px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border);
      background: var(--bg-surface);
      color: var(--text-bright);
      font-size: 11px;
      line-height: 1;
      cursor: pointer;
    }.layer-mini-btn:hover{
      background: var(--accent-active-bg);
      border-color: var(--border-focus);
    }.layer-mini-btn.danger:hover{
      background: var(--danger);
      border-color: var(--danger);
      color: #fff;
    }.modal.settings-modal{
      width: min(760px, 94vw);
    }.modal.settings-modal .modal-body{
      max-height: min(72vh, 680px);
      overflow-y: auto;
    }.modal.help-modal{
      width: min(920px, 94vw);
      max-height: 88vh;
    }.modal.help-modal .modal-body{
      max-height: calc(88vh - 116px);
      overflow-y: auto;
      padding: 16px;
    }.help-hero{
      display: grid;
      grid-template-columns: 54px 1fr;
      gap: 14px;
      align-items: center;
      padding: 14px;
      border: 1px solid var(--border);
      border-radius: 12px;
      background: linear-gradient(135deg, var(--accent-active-bg), rgba(255,255,255,0.035));
      margin-bottom: 12px;
    }.help-hero-mark{
      width: 54px;
      height: 54px;
      display: grid;
      place-items: center;
      border-radius: 14px;
      background: var(--accent);
      color: #fff;
      font-weight: 900;
      letter-spacing: -0.6px;
      box-shadow: 0 8px 22px rgba(0,0,0,0.22);
    }.help-hero h3{ margin: 0 0 4px; color: var(--text-bright); font-size: 18px; }.help-hero p{ margin: 0; color: var(--text-main); line-height: 1.45; }.help-card-grid{
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 10px;
    }.help-card{
      border: 1px solid var(--border);
      border-radius: 10px;
      background: var(--bg-base);
      overflow: hidden;
    }.help-card h4{
      margin: 0;
      padding: 9px 11px;
      color: var(--text-bright);
      background: var(--bg-surface);
      border-bottom: 1px solid var(--border);
      font-size: 12px;
      text-transform: uppercase;
      letter-spacing: 0.4px;
    }.help-list{
      display: grid;
      grid-template-columns: 96px 1fr;
      gap: 0;
      padding: 8px 10px 10px;
      font-size: 12px;
    }.help-list b,
.help-list span{
      padding: 4px 0;
      border-bottom: 1px solid rgba(127,127,127,0.12);
    }.help-list b{
      color: var(--accent);
      font-family: var(--font-mono);
      font-weight: 800;
    }.help-note{
      margin-top: 10px;
      padding: 10px 12px;
      border-left: 3px solid var(--accent);
      background: rgba(127,127,127,0.07);
      border-radius: 8px;
      color: var(--text-main);
      line-height: 1.5;
    }body.ui-light .viewport-wrap.canvas-light .coord-badge,
body.ui-light .viewport-wrap.canvas-light .snap-badge{
      background-color: rgba(255,255,255,0.92);
      color: #111827;
    }body.ui-light .drawing-tab.active{
      background-color: #ffffff;
      color: #111827;
    }body.ui-light .command-input:focus{
      background: #ffffff;
    }

    @media (max-width: 1180px) {.help-card-grid{ grid-template-columns: 1fr; }
    }.help-hero-mark{
      background: linear-gradient(135deg, #9f1d35 0%, #9f1d35 62%, #ffffff 62%, #ffffff 100%);
      color: #ffffff;
      border: 2px solid rgba(255,255,255,0.78);
      text-shadow: 0 1px 2px rgba(0,0,0,0.45);
    }body.ui-light .status-toggle{
      color: #111827 !important;
      text-shadow: none !important;
      filter: none !important;
    }.dynamic-input{
      position: absolute;
      z-index: 18;
      display: none;
      align-items: center;
      gap: 7px;
      min-width: 174px;
      padding: 7px 8px;
      border-radius: 10px;
      border: 1px solid var(--accent);
      background: color-mix(in srgb, var(--bg-panel), transparent 5%);
      box-shadow: 0 8px 22px rgba(0,0,0,.30);
      backdrop-filter: blur(6px);
      pointer-events: auto;
    }.dynamic-input.show{ display: flex; }.dynamic-input .dyn-label{
      white-space: nowrap;
      color: var(--text-main);
      font-family: var(--font-mono);
      font-size: 11px;
      max-width: 112px;
      overflow: hidden;
      text-overflow: ellipsis;
    }.dynamic-input input{
      width: 74px;
      height: 25px;
      padding: 3px 6px;
      border: 1px solid var(--border);
      border-radius: 6px;
      outline: none;
      background: var(--bg-base);
      color: var(--text-bright);
      font-family: var(--font-mono);
      font-size: 12px;
    }.dynamic-input input:focus{ border-color: var(--accent); }body.ui-light .dynamic-input{ background: rgba(255,255,255,.96); }body.ui-light .dynamic-input input{ background: #ffffff; color: #111827; }.tool-assist{
      position: absolute;
      top: 14px;
      left: 14px;
      z-index: 17;
      width: min(360px, calc(100% - 28px));
      display: none;
      padding: 10px 12px;
      border-radius: 14px;
      border: 1px solid color-mix(in srgb, var(--accent), var(--border) 28%);
      background: color-mix(in srgb, var(--bg-panel), transparent 5%);
      box-shadow: 0 10px 28px rgba(0,0,0,.32);
      backdrop-filter: blur(8px);
      pointer-events: auto;
    }.tool-assist.show{ display: block; }.tool-assist .ta-title{ display:flex; align-items:center; justify-content:space-between; gap:10px; color: var(--text-bright); font-weight: 800; margin-bottom: 6px; }.tool-assist .ta-body{ color: var(--text-main); font-size: 12px; line-height: 1.35; }.tool-assist .ta-body b{ color: var(--accent); }.tool-assist .ta-input-row{ display:flex; gap:8px; align-items:center; margin-top:8px; }.tool-assist input{ width: 96px; height: 28px; padding: 4px 7px; border-radius: 7px; border: 1px solid var(--border); background: var(--bg-base); color: var(--text-bright); font-family: var(--font-mono); }.tool-assist button{ height: 28px; padding: 4px 9px; border-radius: 7px; border: 1px solid var(--border); background: var(--bg-surface); color: var(--text-main); cursor: pointer; }.tool-assist button:hover{ background: var(--bg-surface-hover); color: var(--text-bright); }body.ui-light .tool-assist{ background: rgba(255,255,255,.96); color: #111827; }body.ui-light .tool-assist input{ background:#fff; color:#111827; }.cmd-suggest{
      position: absolute;
      left: 88px;
      bottom: 42px;
      width: min(460px, calc(100vw - 120px));
      max-height: 214px;
      display: none;
      overflow: auto;
      z-index: 55;
      padding: 7px;
      border-radius: 12px;
      border: 1px solid var(--border-light);
      background: var(--bg-panel);
      box-shadow: 0 14px 34px rgba(0,0,0,.42);
    }.cmd-suggest.show{ display: block; }.cmd-suggest-item{
      display: grid;
      grid-template-columns: 92px 1fr;
      gap: 10px;
      align-items: center;
      width: 100%;
      border: 1px solid transparent;
      background: transparent;
      color: var(--text-main);
      padding: 7px 9px;
      border-radius: 9px;
      cursor: pointer;
      text-align: left;
    }.cmd-suggest-item:hover,
.cmd-suggest-item.active{ background: var(--accent-active-bg); border-color: var(--accent); color: var(--text-bright); }.cmd-suggest-item b{ font-family: var(--font-mono); color: var(--text-bright); }.cmd-suggest-item span{ font-size: 12px; color: var(--text-muted); }body.ui-light .cmd-suggest{ background: #ffffff; border-color: #cfd5dd; }body.ui-light .cmd-suggest-item b{ color:#111827; }.cad-toast{
      position: absolute;
      left: 50%;
      bottom: 58px;
      transform: translateX(-50%) translateY(12px);
      z-index: 40;
      min-width: 260px;
      max-width: min(680px, calc(100vw - 32px));
      opacity: 0;
      pointer-events: none;
      padding: 10px 14px;
      border-radius: 13px;
      border: 1px solid color-mix(in srgb, var(--warning), var(--border) 38%);
      background: color-mix(in srgb, var(--bg-panel), transparent 4%);
      color: var(--text-bright);
      box-shadow: 0 10px 28px rgba(0,0,0,.32);
      transition: opacity .18s ease, transform .18s ease;
      text-align: center;
      font-size: 12px;
    }.cad-toast.show{ opacity: 1; transform: translateX(-50%) translateY(0); }body.ui-light .cad-toast{ background: rgba(255,255,255,.97); color: #111827; }.tool-assist,
.tool-assist.show,
.cad-toast,
.cad-toast.show{ display: none !important; opacity: 0 !important; pointer-events: none !important; }.file-menu{ position: relative; display: inline-flex; align-items: center; }.file-menu > button::after{ content: ' ▾'; font-size: 10px; color: var(--text-muted); }.file-dropdown{
      position: absolute;
      top: calc(100% + 6px);
      left: 0;
      min-width: 168px;
      display: none;
      flex-direction: column;
      gap: 4px;
      padding: 8px;
      background: var(--bg-panel);
      border: 1px solid var(--border-light);
      border-radius: 12px;
      box-shadow: var(--shadow-dropdown);
      z-index: 80;
    }.file-menu:hover .file-dropdown,
.file-menu.open .file-dropdown{ display: flex; }.file-dropdown button,
.file-dropdown label{
      width: 100%;
      justify-content: flex-start !important;
      text-align: left;
      padding: 9px 10px !important;
      border-radius: 9px !important;
    }body.ui-light .file-dropdown{ background: #ffffff; border-color: #cfd5dd; }.retain-prompt{
      position: absolute;
      left: 18px;
      top: 18px;
      z-index: 35;
      display: none;
      align-items: center;
      gap: 8px;
      max-width: min(360px, calc(100% - 24px));
      padding: 8px 9px;
      background: rgba(31, 41, 55, .96);
      color: #fff;
      border: 1px solid rgba(255,255,255,.16);
      border-radius: 12px;
      box-shadow: 0 12px 30px rgba(0,0,0,.28);
      backdrop-filter: blur(8px);
      font-size: 12px;
      pointer-events: auto;
    }.retain-prompt.show{ display: flex; }.retain-prompt .retain-title{ white-space: nowrap; font-weight: 600; }.retain-prompt .retain-btn{
      border: 1px solid rgba(255,255,255,.18);
      border-radius: 9px;
      padding: 5px 9px;
      background: rgba(255,255,255,.08);
      color: inherit;
      cursor: pointer;
      font-size: 12px;
    }.retain-prompt .retain-btn.primary{ background: var(--accent); border-color: var(--accent); color: #fff; }.retain-prompt .retain-hint{ color: rgba(255,255,255,.62); font-size: 11px; white-space: nowrap; }body.ui-light .retain-prompt{ background: rgba(255,255,255,.98); color: #111827; border-color: #cfd5dd; box-shadow: 0 14px 28px rgba(17,24,39,.16); }body.ui-light .retain-prompt .retain-btn{ background: #f3f4f6; border-color: #d1d5db; color: #111827; }body.ui-light .retain-prompt .retain-btn.primary{ background: var(--accent); border-color: var(--accent); color: #fff; }body.ui-light .retain-prompt .retain-hint{ color: #667085; }.viewport-wrap.retain-freeze #cadCanvas{ cursor: default !important; }.retain-prompt{
      z-index: 90 !important;
      gap: 7px !important;
      padding: 9px 10px !important;
      border-radius: 13px !important;
      cursor: default !important;
      user-select: none !important;
    }.retain-prompt .retain-title{ font-weight: 700 !important; }.retain-prompt .retain-btn{
      min-width: 54px;
      height: 28px;
      font-weight: 700;
    }.retain-prompt .retain-btn:focus-visible{
      outline: 2px solid var(--accent);
      outline-offset: 2px;
    }/* Keep hidden internal classes intact */
    .hud,
.toolstrip{ display: none !important; }.retain-locker{
      position: fixed;
      inset: 0;
      z-index: 120;
      display: none;
      background: rgba(0,0,0,0.001);
      cursor: default;
      pointer-events: auto;
    }.retain-locker.show{ display: block; }.retain-prompt{
      position: fixed !important;
      z-index: 130 !important;
      display: none;
      align-items: center;
      gap: 8px !important;
      max-width: min(410px, calc(100vw - 24px));
      padding: 10px 11px !important;
      border-radius: 14px !important;
      background: rgba(31, 41, 55, .98) !important;
      color: #fff !important;
      border: 1px solid rgba(255,255,255,.18) !important;
      box-shadow: 0 16px 34px rgba(0,0,0,.34) !important;
      backdrop-filter: blur(10px);
      font-size: 12px;
      cursor: default !important;
      user-select: none !important;
      pointer-events: auto !important;
    }.retain-prompt.show{ display: flex !important; }.retain-prompt .retain-title{ white-space: nowrap; font-weight: 800 !important; }.retain-prompt .retain-btn{
      min-width: 58px;
      height: 30px;
      border: 1px solid rgba(255,255,255,.20);
      border-radius: 10px;
      padding: 5px 10px;
      background: rgba(255,255,255,.08);
      color: inherit;
      cursor: pointer;
      font-size: 12px;
      font-weight: 800;
    }.retain-prompt .retain-btn:hover,
.retain-prompt .retain-btn:focus-visible{ background: rgba(255,255,255,.15); outline: 2px solid var(--accent); outline-offset: 2px; }.retain-prompt .retain-btn.primary{ background: var(--accent) !important; border-color: var(--accent) !important; color: #fff !important; }.retain-prompt .retain-hint{ color: rgba(255,255,255,.66); font-size: 11px; white-space: nowrap; }body.ui-light .retain-prompt{ background: rgba(255,255,255,.99) !important; color: #111827 !important; border-color: #cfd5dd !important; box-shadow: 0 16px 34px rgba(17,24,39,.18) !important; }body.ui-light .retain-prompt .retain-btn{ background: #f3f4f6; border-color: #d1d5db; color: #111827; }body.ui-light .retain-prompt .retain-btn.primary{ background: var(--accent) !important; border-color: var(--accent) !important; color: #fff !important; }body.ui-light .retain-prompt .retain-hint{ color: #667085; }body.retain-decision-open *:not(#retainPrompt):not(#retainPrompt *):not(#retainBlocker){ cursor: default !important; }/* ─── FONT VARIABLE ─────────────────────────────────────── */
/* Light theme: top menu and ribbon no longer stay dark grey. */
    body.ui-light{
      background: #edf1f5 !important;
      color: #263241 !important;
    }body.ui-light .drawing-tabs,
body.ui-light .commandbar{
      background: #eef2f6 !important;
      border-color: #d7dee7 !important;
    }body.ui-light .modal{
      background: #ffffff !important;
      border-color: #d5dce5 !important;
      box-shadow: 0 22px 60px rgba(15,23,42,.22) !important;
    }body.ui-light .modal h2,
body.ui-light .modal-actions{
      background: #f4f7fa !important;
      border-color: #d9e0e9 !important;
    }/* Help window visual upgrade */
    .modal.help-modal{ width: min(980px, 94vw) !important; border-radius: 18px !important; }.modal.help-modal h2{
      display: flex !important;
      align-items: center !important;
      gap: 10px !important;
      font-size: 17px !important;
    }.help-hero{
      grid-template-columns: 64px 1fr !important;
      gap: 16px !important;
      padding: 18px !important;
      border-radius: 18px !important;
      background:
        radial-gradient(circle at 20% 0%, rgba(201,42,69,.22), transparent 34%),
        linear-gradient(135deg, rgba(159,29,53,.22), rgba(255,255,255,.045)) !important;
    }.help-hero-mark{
      width: 64px !important;
      height: 64px !important;
      border-radius: 18px !important;
      background: linear-gradient(135deg, #c92a45, #7f1629) !important;
      color: #fff !important;
      border: 1px solid rgba(255,255,255,.18) !important;
      font-family: var(--font-jetbrains, var(--font-ui)) !important;
      font-size: 18px !important;
      box-shadow: 0 14px 28px rgba(0,0,0,.25) !important;
    }.help-hero h3{ font-size: 20px !important; letter-spacing: -.2px !important; }.help-pill-row{
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 10px;
    }.help-pill{
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 5px 9px;
      border: 1px solid color-mix(in srgb, var(--accent), var(--border) 45%);
      border-radius: 999px;
      background: rgba(159,29,53,.10);
      color: var(--text-bright);
      font-size: 11px;
      font-weight: 700;
      letter-spacing: .03em;
    }.help-card{
      border-radius: 14px !important;
      box-shadow: inset 0 1px 0 rgba(255,255,255,.04) !important;
    }.help-card h4{ padding: 11px 13px !important; }.help-list{ grid-template-columns: 116px 1fr !important; padding: 10px 13px 13px !important; }.help-note{
      border-radius: 12px !important;
      padding: 12px 14px !important;
    }.help-tip-grid{
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 10px;
      margin-top: 10px;
    }.help-tip{
      border: 1px solid var(--border);
      border-radius: 14px;
      padding: 12px;
      background: rgba(127,127,127,.07);
      line-height: 1.45;
    }.help-tip b{ display: block; color: var(--accent); margin-bottom: 5px; }body.ui-light .help-pill{ color: #111827; background: rgba(159,29,53,.08); }body.ui-light .help-tip{ background: #f8fafc; border-color: #dce3ec; }
    @media (max-width: 780px) {.help-tip-grid{ grid-template-columns: 1fr; }
    }/* turkcad-followup-polish-css */
/* Follow-up polish: tighter top/ribbon spacing and better menu alignment *//* Drawing tabs: single row,
shrink gracefully,
never wrap downward */
    .drawing-tabs{
      align-items: stretch !important;
      flex-wrap: nowrap !important;
      gap: 3px !important;
      overflow-x: auto !important;
      overflow-y: hidden !important;
      padding: 0 10px !important;
      scrollbar-width: thin;
      white-space: nowrap !important;
    }.drawing-tab{
      flex: 1 1 156px !important;
      min-width: 86px !important;
      max-width: 184px !important;
      height: 28px !important;
    }.drawing-tab-name{
      min-width: 0 !important;
      flex: 1 1 auto !important;
    }.drawing-tab-close{
      flex: 0 0 20px !important;
    }.drawing-tab-add{
      flex: 0 0 30px !important;
      width: 30px !important;
      min-width: 30px !important;
      height: 28px !important;
      display: grid !important;
      place-items: center !important;
      align-self: flex-end !important;
      margin-left: 2px !important;
      border: 1px solid var(--border) !important;
      border-bottom: none !important;
      border-radius: var(--radius-md) var(--radius-md) 0 0 !important;
      background: color-mix(in srgb, var(--bg-surface), transparent 3%) !important;
      color: var(--text-main) !important;
      cursor: pointer !important;
      font-size: 17px !important;
      font-weight: 300 !important;
      line-height: 1 !important;
      transition: background-color .15s ease, color .15s ease, border-color .15s ease !important;
    }.drawing-tab-add:hover{
      background: var(--accent-active-bg) !important;
      border-color: var(--accent) !important;
      color: var(--text-bright) !important;
    }body.ui-light .drawing-tab-add{
      background: #ffffff !important;
      border-color: #cfd5dd !important;
      color: #273142 !important;
    }body.ui-light .drawing-tab-add:hover{
      background: #eef2f7 !important;
      border-color: rgba(159,29,53,.42) !important;
      color: #9f1d35 !important;
    }

    @media (max-width: 1080px) {.drawing-tab{ min-width: 78px !important; }
    }/* turkcad-professional-workflow-fix-css *//* TurkCAD v16: clearer dynamic readouts and softer professional command UI */
    .dynamic-input{
      min-width: 260px !important;
      max-width: min(420px, calc(100vw - 28px)) !important;
      padding: 8px 9px !important;
      gap: 8px !important;
      border-radius: 12px !important;
      align-items: center !important;
      background: color-mix(in srgb, var(--bg-panel), transparent 3%) !important;
      border-color: color-mix(in srgb, var(--accent), var(--border) 28%) !important;
      box-shadow: 0 12px 28px rgba(0,0,0,.34), inset 0 1px 0 rgba(255,255,255,.05) !important;
    }.dynamic-input .dyn-label{
      max-width: none !important;
      min-width: 154px !important;
      flex: 1 1 auto !important;
      overflow: visible !important;
      text-overflow: clip !important;
      white-space: nowrap !important;
      color: color-mix(in srgb, var(--text-bright), var(--accent) 12%) !important;
      font-weight: 700 !important;
      letter-spacing: .01em !important;
    }.dynamic-input input{
      width: 96px !important;
      min-width: 88px !important;
      height: 28px !important;
      text-align: center !important;
      font-weight: 650 !important;
    }body.ui-light .dynamic-input{
      background: rgba(255,255,255,.98) !important;
      border-color: rgba(159,29,53,.35) !important;
      box-shadow: 0 14px 26px rgba(17,24,39,.14), inset 0 1px 0 rgba(255,255,255,.92) !important;
    }body.ui-light .dynamic-input .dyn-label{
      color: #222936 !important;
    }
    @media (max-width: 980px) {.dynamic-input{
        min-width: 222px !important;
      }.dynamic-input .dyn-label{
        min-width: 126px !important;
        font-size: 10.8px !important;
      }.dynamic-input input{
        width: 76px !important;
        min-width: 74px !important;
      }
    }/* turkcad-v17-ellipse-text-measure-css */
/* TurkCAD v17: compact command input + clearer text/measure workflow */
    .dynamic-input.tc-dyn-compact{
      min-width: 164px !important;
      max-width: min(248px, calc(100vw - 28px)) !important;
      gap: 5px !important;
      padding: 5px 6px !important;
      border-radius: 10px !important;
    }.dynamic-input.tc-dyn-compact .dyn-label{
      min-width: 54px !important;
      max-width: 128px !important;
      flex: 0 1 auto !important;
      overflow: hidden !important;
      text-overflow: ellipsis !important;
      white-space: nowrap !important;
      font-size: 11px !important;
    }.dynamic-input.tc-dyn-compact input{
      width: 62px !important;
      min-width: 58px !important;
      height: 25px !important;
      padding: 3px 5px !important;
      font-size: 11.5px !important;
    }.dynamic-input.tc-dyn-text{
      min-width: 244px !important;
      max-width: min(380px, calc(100vw - 28px)) !important;
      gap: 7px !important;
    }.dynamic-input.tc-dyn-text .dyn-label{
      min-width: 42px !important;
      max-width: 74px !important;
      flex: 0 0 auto !important;
    }.dynamic-input.tc-dyn-text input{
      width: 178px !important;
      min-width: 150px !important;
      text-align: left !important;
      padding-left: 8px !important;
    }body.ui-light .dynamic-input.tc-dyn-compact,
body.ui-light .dynamic-input.tc-dyn-text{
      box-shadow: 0 10px 22px rgba(17,24,39,.12), inset 0 1px 0 rgba(255,255,255,.92) !important;
    }/* turkcad-v18-final-ready-css */
    .help-hero-mark svg.tc-cad-logo{
      width: 100% !important;
      height: 100% !important;
      display: block !important;
      filter: drop-shadow(0 8px 14px rgba(0,0,0,.22));
    }.help-hero-mark{
      font-size: 0 !important;
      background: transparent !important;
      border: 0 !important;
      box-shadow: none !important;
      padding: 0 !important;
      overflow: visible !important;
    }.tc-inline-text-editor{
      position: absolute;
      z-index: 80;
      height: 30px;
      min-width: 120px;
      max-width: 420px;
      padding: 4px 10px;
      border-radius: 7px;
      border: 1px solid color-mix(in srgb, var(--accent), var(--border) 25%);
      background: color-mix(in srgb, var(--bg-panel), transparent 3%);
      color: var(--text-bright);
      font: 500 13px var(--font-ui);
      outline: none;
      box-shadow: 0 10px 24px rgba(0,0,0,.28),
inset 0 1px 0 rgba(255,255,255,.06);
      text-align: center;
      pointer-events: auto;
    }.tc-inline-text-editor:focus{
      border-color: var(--accent-hover);
      box-shadow: 0 12px 28px rgba(0,0,0,.32),
0 0 0 3px var(--accent-active-bg);
    }body.ui-light .tc-inline-text-editor{
      background: rgba(255,255,255,.98);
      color: #111827;
      box-shadow: 0 14px 26px rgba(17,24,39,.16),
inset 0 1px 0 rgba(255,255,255,.9);
    }.dynamic-input.tc-no-input{ display: none !important; }.dynamic-input.tc-dyn-compact{
      min-width: 118px !important;
      gap: 5px !important;
      padding: 5px 6px !important;
    }.dynamic-input.tc-dyn-compact .dyn-label{
      max-width: 76px !important;
      font-size: 10.5px !important;
    }.dynamic-input.tc-dyn-compact input{
      width: 56px !important;
      height: 23px !important;
      padding: 2px 5px !important;
      font-size: 11px !important;
    }.cmd-suggest{
      bottom: 44px !important;
      left: 86px !important;
      width: min(520px, calc(100vw - 128px)) !important;
      max-height: 248px !important;
      padding: 8px !important;
      border-radius: 14px !important;
      border-color: color-mix(in srgb, var(--border-light), var(--accent) 18%) !important;
      background: color-mix(in srgb, var(--bg-panel), transparent 1%) !important;
      backdrop-filter: blur(10px);
    }.cmd-suggest-item{
      grid-template-columns: 108px 1fr !important;
      padding: 8px 10px !important;
      border-radius: 10px !important;
    }.cmd-suggest-item b{ letter-spacing: .04em; }.cmd-suggest-item small{
      color: var(--accent);
      font-family: var(--font-mono);
      margin-left: 6px;
      font-size: 10px;
    }body.ui-light .cmd-suggest{ background: rgba(255,255,255,.98) !important; }/* turkcad-v19-final-touches-css */
/* TurkCAD v19: final measure/text/logo/arc mode touches */
    .tc-cad-logo-v19{ width: 100%; height: 100%; display: block; }.help-hero-mark{
      background: transparent !important;
      border: 0 !important;
      box-shadow: none !important;
      padding: 0 !important;
    }.tc-inline-text-editor{
      color: #9f1d35 !important;
      caret-color: #9f1d35 !important;
      font-weight: 700 !important;
      background: rgba(255,255,255,.94) !important;
      border-color: rgba(159,29,53,.65) !important;
    }body:not(.ui-light) .tc-inline-text-editor{
      background: rgba(24,24,27,.92) !important;
      color: #ff8aa1 !important;
      caret-color: #ff8aa1 !important;
    }.tc-arc-mode-panel{
      position: absolute;
      z-index: 42;
      left: 18px;
      top: 18px;
      display: none;
      align-items: center;
      gap: 6px;
      padding: 6px;
      border-radius: 13px;
      border: 1px solid color-mix(in srgb, var(--border), var(--accent) 28%);
      background: color-mix(in srgb, var(--bg-panel), transparent 5%);
      box-shadow: 0 12px 28px rgba(0,0,0,.28);
      backdrop-filter: blur(8px);
      pointer-events: auto;
    }.tc-arc-mode-panel.show{ display: inline-flex; }.tc-arc-mode-panel .arc-mode-label{
      color: var(--text-muted);
      font-size: 10px;
      font-weight: 800;
      letter-spacing: .06em;
      text-transform: uppercase;
      padding: 0 4px;
    }.tc-arc-mode-btn{
      height: 28px;
      padding: 0 10px;
      border-radius: 9px;
      border: 1px solid transparent;
      background: color-mix(in srgb, var(--bg-surface), transparent 8%);
      color: var(--text-main);
      font-size: 11px;
      font-weight: 700;
      cursor: pointer;
    }.tc-arc-mode-btn:hover{
      background: var(--bg-surface-hover);
      color: var(--text-bright);
    }.tc-arc-mode-btn.active{
      background: var(--accent-active-bg);
      border-color: color-mix(in srgb, var(--accent), transparent 20%);
      color: var(--text-bright);
    }body.ui-light .tc-arc-mode-panel{
      background: rgba(255,255,255,.96);
      border-color: #d3d9e2;
      box-shadow: 0 12px 24px rgba(17,24,39,.14);
    }body.ui-light .tc-arc-mode-btn{ background: #f3f5f8; color: #111827; }body.ui-light .tc-arc-mode-btn.active{ background: rgba(159,29,53,.12); color: #111827; border-color: rgba(159,29,53,.36); }/* turkcad-v20-last-polish-css */
/* v20 final polish: calmer tool icons,
user-provided CAD mark,
richer help/about and measure readout */
    :root{
      --tc20-icon-idle: rgba(224, 229, 238, .68);
      --tc20-icon-hover: rgba(244, 247, 252, .86);
      --tc20-icon-active: rgba(255, 255, 255, .92);
    }body.ui-light{
      --tc20-icon-idle: rgba(31, 41, 55, .68);
      --tc20-icon-hover: rgba(15, 23, 42, .86);
      --tc20-icon-active: rgba(15, 23, 42, .94);
    }.help-hero-mark svg.tc20-user-logo,
.about-logo svg.tc20-user-logo{
      width: 92% !important;
      height: 92% !important;
      display: block !important;
      color: var(--accent) !important;
      filter: drop-shadow(0 2px 4px rgba(0,0,0,.24));
    }.help-hero-mark,
.about-logo{
      background: transparent !important;
      border: 0 !important;
      box-shadow: none !important;
    }#aboutBtn::before{
      background-image: url("../assets/icons/menu/about.svg") !important;
    }.modal.help-modal,
.modal.about-modal{ width: min(980px, 94vw) !important; max-height: 90vh !important; }.modal.help-modal .modal-body,
.modal.about-modal .modal-body{ max-height: calc(90vh - 116px) !important; overflow-y: auto !important; padding: 18px !important; }.tc20-guide-hero,
.tc20-about-hero{
      display: grid;
      grid-template-columns: 64px 1fr;
      gap: 16px;
      align-items: center;
      padding: 16px;
      border: 1px solid color-mix(in srgb, var(--border), var(--accent) 18%);
      border-radius: 16px;
      background: linear-gradient(135deg, var(--accent-active-bg), color-mix(in srgb, var(--bg-surface), transparent 12%));
      margin-bottom: 14px;
    }.tc20-guide-hero h3,
.tc20-about-hero h3{ margin: 0 0 4px; color: var(--text-bright); font-size: 20px; }.tc20-guide-hero p,
.tc20-about-hero p{ margin: 0; color: var(--text-main); line-height: 1.5; }.tc20-guide-logo,
.about-logo{
      width: 64px;
      height: 64px;
      display: grid;
      place-items: center;
      color: var(--accent);
      border-radius: 17px;
      background: linear-gradient(145deg, #18181b, #2b2b31);
      border: 1px solid rgba(255,255,255,.1);
      box-shadow: 0 12px 26px rgba(0,0,0,.24), inset 0 1px 0 rgba(255,255,255,.07);
      overflow: hidden;
    }body.ui-light .tc20-guide-logo,
body.ui-light .about-logo{ background: linear-gradient(145deg, #ffffff, #eef2f7); border-color: #d2d8e1; box-shadow: 0 12px 24px rgba(17,24,39,.13); }.tc20-guide-grid,
.tc20-about-grid{
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 12px;
    }.tc20-guide-card,
.tc20-about-card{
      border: 1px solid var(--border);
      border-radius: 14px;
      background: color-mix(in srgb, var(--bg-base), transparent 4%);
      overflow: hidden;
    }.tc20-guide-card h4,
.tc20-about-card h4{
      margin: 0;
      padding: 10px 12px;
      color: var(--text-bright);
      background: var(--bg-surface);
      border-bottom: 1px solid var(--border);
      font-size: 12px;
      text-transform: uppercase;
      letter-spacing: .45px;
    }.tc20-cmd-list{
      display: grid;
      grid-template-columns: 104px 1fr;
      gap: 0;
      padding: 9px 12px 11px;
      font-size: 12px;
      line-height: 1.35;
    }.tc20-cmd-list b,
.tc20-cmd-list span{ padding: 5px 0; border-bottom: 1px solid rgba(127,127,127,.13); }.tc20-cmd-list b{ color: var(--accent); font-family: var(--font-mono); font-weight: 800; }.tc20-tip-list{ padding: 12px 14px; margin: 0; color: var(--text-main); line-height: 1.55; }.tc20-tip-list li{ margin: 0 0 7px 18px; }.tc20-pill-row{ display: flex; flex-wrap: wrap; gap: 7px; margin-top: 10px; }.tc20-pill{ display: inline-flex; align-items: center; height: 23px; padding: 0 9px; border-radius: 999px; background: var(--accent-active-bg); color: var(--text-bright); border: 1px solid color-mix(in srgb, var(--accent), transparent 48%); font-size: 10px; font-weight: 800; letter-spacing: .05em; }.tc20-release-list{ margin: 0; padding: 12px 16px 13px 30px; line-height: 1.55; color: var(--text-main); }.tc20-release-list li{ margin-bottom: 5px; }.tc20-about-meta{ display: grid; grid-template-columns: 150px 1fr; gap: 8px 12px; padding: 12px 14px; }.tc20-about-meta b{ color: var(--text-muted); text-transform: uppercase; font-size: 11px; letter-spacing: .04em; }.tc20-about-meta span{ color: var(--text-main); }
    @media (max-width: 760px) {.tc20-guide-grid,
.tc20-about-grid{ grid-template-columns: 1fr; }.tc20-guide-hero,
.tc20-about-hero{ grid-template-columns: 1fr; } }.tc-arc-mode-panel{ gap: 7px !important; }.tc-arc-mode-btn[data-arc-mode="startEndRadius"]::after{ content: '  R/D'; opacity: .7; font-weight: 600; }.dynamic-input.tc-arc2-ready{ min-width: 126px !important; padding: 5px 6px !important; gap: 6px !important; }.dynamic-input.tc-arc2-ready .dyn-label{ max-width: 128px !important; }.dynamic-input.tc-arc2-ready input{ width: 68px !important; }