/* Shared visual layer. Model materials, canvas backgrounds and permissions stay unchanged. */
:root {
  color-scheme: light;
  --page: #f5f6f8;
  --surface: #ffffff;
  --surface-soft: #f0f3f5;
  --ink: #29343b;
  --muted: #63717c;
  --line: #dfe5e9;
  --green: #247568;
  --accent: #247568;
  --accent-hover: #1b5c53;
  --accent-soft: #e8f2ee;
  --info: #3e6794;
  --info-soft: #edf3fa;
  --warning: #896326;
  --warning-soft: #faf3e6;
  --danger: #ac424c;
  --danger-soft: #fcf0f1;
  --focus: #a6c9c2;
  --shadow: 0 8px 26px rgb(35 48 59 / 8%);
  font-family: "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
  color: var(--ink);
  background: var(--page);
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
}
body:not(.viewer-body):not(.cad-body), .admin-body {
  min-height: 100dvh;
  color: var(--ink);
  background: var(--page);
}
button, input, select, textarea { font-family: inherit; letter-spacing: 0; }
button, a, input, select, textarea { -webkit-tap-highlight-color: transparent; }
::selection { color: #173f38; background: #d4e9e2; }
:where(button, a, input, select, textarea, summary):focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}
:where(button, a) { touch-action: manipulation; }
:where(.workspace, .recharge-workspace) { line-height: 1.6; }
:where(.workspace, dialog) :where(h1, h2, h3, strong) { color: var(--ink); }
:where(.workspace, dialog) :where(input, select, textarea) { accent-color: var(--accent); }

/* Quiet navigation, shared by the library, tools and administration. */
.sidebar, .admin-body .sidebar {
  width: 220px;
  padding: 24px 14px 16px;
  background: var(--surface);
  border-color: var(--line);
  color: var(--ink);
  gap: 0;
}
.sidebar .brand, .admin-body .brand {
  padding: 0 12px 25px;
  gap: 11px;
  color: var(--ink);
  font-size: 23px;
  line-height: 1.4;
}
.sidebar .brand > svg, .admin-body .brand > svg {
  width: 32px;
  height: 32px;
  color: var(--accent);
}
.sidebar .brand-sub, .admin-body .brand-sub {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.6;
}
.sidebar-kicker, .admin-body .sidebar-kicker {
  padding: 0 12px 12px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 500;
}
.sidebar nav, .admin-body .sidebar nav {
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: #cbd5db transparent;
  gap: 4px;
  padding: 2px;
}
.sidebar .nav-item, .admin-body .sidebar nav .nav-item {
  min-height: 40px;
  padding: 10px 12px;
  gap: 10px;
  border-radius: 6px;
  font-size: 13px;
  line-height: 20px;
  color: #5c6973;
}
.sidebar .nav-item:hover, .admin-body .sidebar nav .nav-item:hover {
  color: var(--ink);
  background: var(--surface-soft);
}
.sidebar .nav-item.active, .admin-body .sidebar nav .nav-item.active,
.sidebar .nav-item.active:hover, .admin-body .sidebar nav .nav-item.active:hover {
  color: #216455;
  background: var(--accent-soft);
  font-weight: 600;
}
.sidebar-bottom, .admin-body .sidebar-bottom {
  flex-shrink: 0;
  margin-top: auto;
  padding: 16px 12px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
}
.admin-body .owner-avatar {
  border-color: #d2e5de;
  background: var(--accent-soft);
  color: var(--accent);
}
.admin-body .owner-details strong { color: var(--ink); }
.admin-body .owner-details small { color: var(--muted); }
.admin-body .status-dot { box-shadow: none; }
.workspace, .admin-body .workspace {
  margin-left: 220px;
  max-width: 1900px;
  padding: 30px 36px 18px;
}
.page-header, .admin-body .page-header {
  align-items: center;
  min-height: 82px;
  margin-bottom: 24px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}
h1, .admin-body h1 { margin-top: 8px; color: var(--ink); font-size: 25px; font-weight: 600; }
.breadcrumb, .admin-body .breadcrumb { color: var(--muted); font-size: 12px; }
.breadcrumb span:first-child, .admin-body .breadcrumb span:first-child { color: #9aa5ad; }
.admin-caption, .admin-body .admin-caption { color: var(--muted); font-size: 12px; }
.header-actions, .admin-body .header-actions { align-items: center; gap: 8px; }

/* Controls retain stable dimensions in every state. */
.button {
  min-height: 40px;
  padding: 9px 15px;
  border-radius: 6px;
  border-color: var(--line);
  font-size: 13px;
  font-weight: 500;
  line-height: 20px;
}
.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.primary:hover:not(:disabled) { background: var(--accent-hover); border-color: var(--accent-hover); }
.secondary, .admin-body .header-actions .button.secondary { background: var(--surface); color: #45535e; }
.secondary:hover:not(:disabled) { background: var(--surface-soft); border-color: #bfcbd3; }
.danger { background: var(--surface); color: var(--danger); border-color: #e6cbd0; }
.danger:hover:not(:disabled) { background: var(--danger-soft); }
.icon-button { color: #647580; border-radius: 6px; }
.icon-button:hover:not(:disabled) { background: var(--surface-soft); color: var(--ink); }
.admin-body .header-actions .icon-button { background: var(--surface); border-color: var(--line); }
button:disabled { opacity: .48; box-shadow: none; }
.text-input, .copy-field input, .admin-body .text-input, .pricing-form textarea,
.admin-body .pricing-form textarea, .issued-codes textarea {
  min-height: 42px;
  padding: 10px 12px;
  border: 1px solid #d4dde3;
  border-radius: 6px;
  background: var(--surface);
  color: var(--ink);
  font-size: 13px;
  line-height: 20px;
}
.text-input::placeholder, input::placeholder, textarea::placeholder { color: #84919b; opacity: 1; }
.text-input:focus, .admin-body .text-input:focus, .pricing-form textarea:focus,
.admin-body .pricing-form textarea:focus {
  border-color: #75a69a;
  outline: 3px solid #e0eee8;
  outline-offset: 0;
}
.field-label, .code-fields label, .account-filters label, .security-filters label,
.tool-asset-fields label, .local-retention label { color: #56656f; }
.search, .admin-body .search {
  min-height: 38px;
  border-color: #d4dde3;
  border-radius: 6px;
  color: #768791;
  background: var(--surface);
}
.search:focus-within { border-color: #75a69a; outline: 3px solid #e0eee8; }
.search input { color: var(--ink); font-size: 13px; }
.share-policy, .share-expiry, .job-meta, .job-meta span, .order-id,
.admin-order-description, .admin-model-meta, .preview-details span,
.preview-actions > span, .page-footer, .admin-body .page-footer { color: var(--muted); }
.page-footer, .admin-body .page-footer { font-size: 11px; border-color: var(--line); }
.error-text, .secondary-error { color: var(--danger); }

/* Flat statistics and rows keep operational pages compact. */
.metrics, .admin-body .metrics {
  gap: 0;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: transparent;
}
.metrics > div, .admin-body .metrics > div {
  min-width: 0;
  padding: 3px 20px;
  border: 0;
  border-left: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
}
.metrics > div:first-child, .admin-body .metrics > div:first-child {
  border-left: 0;
  padding-left: 0;
}
.metrics span, .admin-body .metrics span { color: var(--muted); font-size: 12px; }
.metrics strong, .admin-body .metrics strong {
  margin-top: 9px;
  color: var(--ink);
  font-size: 27px;
  font-weight: 600;
  line-height: 1.4;
  font-variant-numeric: tabular-nums;
}
.metrics > div:nth-child(2) strong, .admin-body .metrics > div:nth-child(2) strong { color: var(--info); }
.metrics > div:nth-child(3) strong, .admin-body .metrics > div:nth-child(3) strong { color: var(--accent); }
.metrics > div:nth-child(4) strong, .admin-body .metrics > div:nth-child(4) strong { color: var(--warning); }
.tabs, .admin-body .tabs { gap: 22px; }
.tabs button, .admin-body .tabs button, .security-tabs button, .auth-tabs button { color: var(--muted); }
.tabs button[aria-selected=true], .admin-body .tabs button[aria-selected=true],
.security-tabs button[aria-selected=true], .auth-tabs button[aria-selected=true] {
  color: var(--accent);
  border-bottom-color: var(--accent);
}
.settings-heading, .admin-body .settings-heading { margin: 24px 0 18px; }
.settings-heading h2, .admin-body .settings-heading h2 { color: var(--ink); font-size: 17px; font-weight: 600; }
.badge { min-height: 23px; padding: 3px 8px; border-radius: 4px; font-size: 11px; line-height: 17px; }
.badge.ready { color: #276652; background: #e8f3ed; }
.badge.queued, .badge.waiting_worker, .badge.uploading, .badge.converting { color: var(--info); background: var(--info-soft); }
.badge.pending_payment { color: var(--warning); background: var(--warning-soft); }
.badge.failed { color: var(--danger); background: var(--danger-soft); }
.badge.neutral, .badge.cancelled, .badge.expired { color: #62717d; background: #eaf0f4; }
.admin-order-title h2, .admin-body .admin-order-title h2 { color: var(--ink); }
.admin-model-row { background: var(--surface); border-color: var(--line); }
.admin-model-summary { padding: 18px 16px; }
.admin-model-summary:hover { background: #f0f5f7; }
.admin-model-row[open] > .admin-model-summary { background: #f0f5f7; }
.admin-model-body { padding: 4px 16px 18px; }
.admin-body .admin-order:hover { background: #f0f5f7; }
.account-table-scroll { border-color: var(--line); background: var(--surface); }
.account-table th { background: #edf1f4; color: #566672; padding: 13px 16px; }
.account-table td { padding: 14px 16px; }
.account-table tr + tr td { border-color: #e9edf0; }
.account-table tbody tr:hover { background: #f7f9fa; }
.account-details, .registration-controls, .drawing-report, .security-review { border-color: var(--line); }
.account-details > summary, .registration-controls > summary, .drawing-report > summary,
.security-review > summary { color: #455560; }
.account-details > summary:hover, .registration-controls > summary:hover,
.drawing-report > summary:hover { color: var(--accent); }
.security-list-heading { background: #edf1f4; color: #566672; }
.security-rows, #security-list { background: var(--surface); }
.security-row > summary:hover, .security-row .security-evidence { background: #f2f5f7; }
.security-target { color: #435866; }
.security-alert { border-color: var(--danger); background: var(--danger-soft); color: var(--danger); }
.security-alert .button { border-color: #e6cbd0; }
.security-totals strong { color: var(--ink); font-variant-numeric: tabular-nums; }
.security-totals > div:nth-child(2) strong { color: var(--warning); }
.security-totals > div:nth-child(3) strong { color: var(--danger); }
.rate-heading { background: #edf1f4; }
.admin-empty { padding: 64px 16px; color: var(--muted); font-size: 13px; }

/* Model library and local tooling use the same surfaces, not nested cards. */
.model-workspace { border-color: var(--line); background: var(--surface); }
.list-heading, .list-footer { color: var(--muted); border-color: var(--line); background: #f6f8fa; }
.job-row { border-color: #e9edf0; }
.job-row:hover { background: #f3f6f8; }
.job-row.selected { background: #eaf3ef; }
.job-icon { color: var(--accent); border-color: #d4e1dc; background: var(--surface); }
.job-meta { font-size: 11px; }
.preview-heading h2 { color: var(--ink); }
.preview-empty { color: var(--muted); background-color: #eef2f5; }
.preview-empty > svg { color: #9eafb9; }
.preview-empty h3, .empty-list h2 { color: #526772; }
.preview-details strong { color: var(--ink); }
.preview-actions, .preview-details, .order-summary { border-color: var(--line); }
.upload-dropzone {
  border-color: #aabdc6;
  background: #edf3f8;
  color: #426174;
}
.upload-dropzone:hover, .upload-dropzone:focus-visible { border-color: #7c9bb0; background: #e7eff7; box-shadow: 0 0 0 3px #e5ecf2; }
.upload-dropzone.dragover { border-color: var(--accent); background: var(--accent-soft); }
.upload-dropzone-icon { color: #46728b; background: #dfeaf2; }
.upload-dropzone-copy span { color: #5c7180; }
.upload-progress { background: var(--accent-soft); color: var(--accent); border-color: #cddfd6; }
.local-convert-panel {
  max-width: 100%;
  padding: 0;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  background: transparent;
}
.component-controls { border-color: var(--line); }
.component-control-title { color: var(--ink); }
.component-download-progress, .engineering-output-path, .engineering-row span { color: var(--muted); }
.local-version-choice, .engineering-actions label { border-color: #d4dde3; color: #56656f; }
.local-version-choice .text-input, .engineering-actions label .text-input { background: transparent; min-height: 32px; }
.engineering-model, .local-model-summary { border-color: var(--line); background: #edf3f8; color: #365f77; }
.engineering-model > svg, .local-model-summary > svg { color: #487c97; }
.engineering-model span, .local-model-summary span { color: #5e7584; }
.local-progress-label { color: var(--muted); }
.local-progress-label strong { color: var(--accent); }
.local-progress-wrap progress, .component-download-progress progress { accent-color: var(--accent); }
.engineering-output h3, .engineering-summary, .engineering-row strong { color: var(--ink); }
.engineering-warning { color: var(--warning); }
.engineering-row { border-color: var(--line); background: var(--surface); }
.tool-card { border-color: var(--line); border-radius: 8px; box-shadow: 0 2px 6px rgb(35 48 59 / 3%); }
.tool-card-title h2 { color: var(--ink); }
.tool-card p, .tool-meta, .tool-version { color: var(--muted); }
.tool-cover-placeholder { color: #7993a4; background: #edf2f6; }
.tools-notice, .test-notice { background: var(--warning-soft); border-color: #e4d5b8; color: var(--warning); }
.test-notice { padding: 14px 16px; }

/* Dialogs, login and the optional secondary password. */
dialog, .secondary-dialog {
  color: var(--ink);
  background: var(--surface);
  border: 1px solid #dde4e9;
  border-radius: 8px;
  padding: 28px;
  max-height: calc(100dvh - 32px);
  overflow-y: auto;
  box-shadow: 0 18px 64px rgb(35 48 59 / 18%);
}
dialog::backdrop, .secondary-dialog::backdrop { background: rgb(40 51 62 / 30%); backdrop-filter: blur(4px); }
.dialog-heading { margin-bottom: 24px; }
.dialog-heading h2, #password-dialog .dialog-heading h2 { color: var(--ink); font-size: 20px; line-height: 1.5; }
#admin-auth .dialog-heading::before, #auth-dialog .dialog-heading::before,
#tools-auth .dialog-heading::before {
  content: "";
  width: 32px;
  height: 32px;
  flex: 0 0 32px;
  background: url("/icon-192.png") center / contain no-repeat;
  margin-right: 12px;
}
#admin-auth .dialog-heading h2, #auth-dialog .dialog-heading h2, #tools-auth .dialog-heading h2 { margin-right: auto; }
.admin-auth-links button, .secondary-link { color: var(--accent); }
.secondary-note, .secondary-logout { color: var(--muted); }
#secondary-unlock::backdrop { background: #eef2f5; }
.secondary-toggle input { accent-color: var(--accent); }
.toast { background: #344b58; box-shadow: var(--shadow); border-radius: 6px; line-height: 1.6; }
.toast.error { background: #91414c; }

/* Viewer chrome only; the CAD and model canvases keep their original colors. */
.viewer-top {
  color: var(--ink);
  background: rgb(255 255 255 / 97%);
  border-color: var(--line);
}
.viewer-title { color: var(--ink); border-color: var(--line); }
.viewer-top .viewer-count, .viewer-search-hits { color: var(--muted); }
.viewer-search, .viewer-controls, .bg-menu, .clip-panel, .filter-groups-panel,
.mobile-layers-panel, .part-visibility-panel, .inventory-panel, .part-info,
.measure-panel, .drawing-viewer {
  color: var(--ink);
  border-color: #d7e0e5;
  border-radius: 6px;
  background: rgb(255 255 255 / 97%);
  box-shadow: var(--shadow);
}
.viewer-search input, .inventory-search input { color: var(--ink); }
.viewer-controls .icon-button.active, .viewer-search .icon-button.active,
.viewer-segment button[aria-pressed=true], .clip-axis button[aria-pressed=true],
.clip-pick[aria-pressed=true], .bg-swatch[aria-selected=true] {
  color: var(--accent);
  border-color: #b4d3c8;
  background: var(--accent-soft);
}
.viewer-controls .icon-button { color: #4c5f6c; }
.viewer-controls .icon-button:hover { background: #edf2f5; }
.viewer-bottom span { color: #435965; background: rgb(255 255 255 / 95%); }
.inventory-table th { background: #edf2f5; color: #546773; }
.inventory-table tbody tr:hover { background: #f2f7f5; }
.inventory-table tr.selected { background: var(--accent-soft); }
.inventory-item, .drawing-link, .drawing-viewer-back { color: var(--accent); }
.inventory-totals dt, .measure-status { color: var(--muted); }
.inventory-note { color: var(--warning); }
.inventory-totals dd, .part-properties dd, .measure-values dd { color: var(--ink); }
.drawing-viewer-heading, .drawing-pdf-toolbar { background: var(--surface); border-color: var(--line); }
.drawing-link { border-color: #d3e2dc; background: #f3f8f5; }
.part-callout { background: rgb(39 52 62 / 96%); border-color: #5d707d; color: #f5f8fa; }
.cad-body #cad-topbar button, .cad-body #cad-actions button, .cad-body #cad-title, .cad-body #cad-status {
  color: #425b6a;
  background: rgb(255 255 255 / 97%);
  border: 1px solid #d4dfe5;
  border-radius: 6px;
  box-shadow: var(--shadow);
}
.cad-body #cad-status.error { color: var(--danger); border-color: #e0b7c0; }
.security-message-body main { max-width: 680px; margin: 10vh auto; padding: 28px; }
.security-message-body h1 { color: var(--danger); font-size: 24px; }
.security-message-body dl { border-color: var(--line); }
.security-message-body dt { color: var(--muted); }
.security-message-body a { color: var(--accent); }

/* Public model viewing keeps the normal workbench shell but excludes private work controls. */
body.demo-workspace #workspace-metrics,
body.demo-workspace #upload-dropzone,
body.demo-workspace #upload-progress,
body.demo-workspace #order-summary,
body.demo-workspace #delete-model,
body.demo-workspace #model-toolbar .tabs {
  display: none !important;
}
body.demo-workspace .model-workspace { min-height: calc(100dvh - 190px); }
body.demo-workspace #jobs { max-height: calc(100dvh - 330px); }
body.demo-workspace .preview-stage { min-height: 520px; }
body.demo-workspace .preview-empty { background-color: #eef2f5; }
body.demo-workspace .page-footer { padding-top: 16px; }

@media (prefers-reduced-motion: no-preference) {
  .button, .nav-item, .icon-button, .job-row, .admin-model-summary {
    transition: color .14s ease, background-color .14s ease, border-color .14s ease;
  }
}
@media (min-width: 1700px) {
  .workspace, .admin-body .workspace { padding: 36px 48px 20px; }
}
@media (min-width: 851px) and (max-width: 1150px) {
  .sidebar, .admin-body .sidebar { width: 190px; padding: 22px 10px 16px; }
  .workspace, .admin-body .workspace { margin-left: 190px; padding: 26px 24px 16px; }
}
@media (max-width: 1050px) {
  .admin-body .account-metrics { row-gap: 20px; }
  .admin-body .account-metrics > div:nth-child(3n+1) { border-left: 0; padding-left: 0; }
}
@media (max-width: 850px) {
  .sidebar, .admin-body .sidebar {
    position: relative;
    display: block;
    width: 100%;
    padding: 16px 18px 8px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
    background: var(--surface);
  }
  .sidebar .brand, .admin-body .sidebar .brand { padding: 0; margin-bottom: 12px; font-size: 21px; }
  .sidebar .brand-sub, .admin-body .brand-sub { display: none; }
  .sidebar-kicker, .admin-body .sidebar-kicker, .sidebar-bottom, .admin-body .sidebar-bottom { display: none; }
  .sidebar nav, .admin-body .sidebar nav {
    display: flex;
    flex-wrap: nowrap;
    justify-content: flex-start;
    width: 100%;
    margin: 0;
    padding: 3px 2px 8px;
    overflow-x: auto;
    overflow-y: hidden;
    gap: 5px;
    scroll-snap-type: x proximity;
    scrollbar-width: thin;
  }
  .sidebar nav .nav-item, .admin-body .sidebar nav .nav-item {
    width: auto;
    flex: 0 0 auto;
    min-height: 40px;
    padding: 9px 12px;
    font-size: 12px;
    gap: 7px;
    scroll-snap-align: start;
  }
  .workspace, .admin-body .workspace { margin: 0; padding: 24px 20px 16px; }
  .page-header, .admin-body .page-header { margin-bottom: 20px; padding-bottom: 18px; }
}
@media (max-width: 600px) {
  .sidebar, .admin-body .sidebar { padding: 14px 14px 6px; }
  .workspace, .admin-body .workspace, .recharge-workspace { padding: 20px 16px 14px; }
  .page-header, .admin-body .page-header { align-items: flex-start; gap: 16px; }
  h1, .admin-body h1 { font-size: 23px; }
  .header-actions { gap: 8px; }
  .admin-body .header-actions { width: auto; margin-left: auto; }
  .header-actions .button { min-height: 42px; }
  .metrics, .admin-body .metrics { padding: 16px 0; }
  .metrics > div, .admin-body .metrics > div { padding: 2px 10px; }
  .metrics span, .admin-body .metrics span { font-size: 11px; }
  .metrics strong, .admin-body .metrics strong { font-size: 23px; }
  .admin-body .metrics > div:nth-child(n) { border: 0; border-left: 1px solid var(--line); }
  .admin-body .metrics > div:first-child { border-left: 0; padding-left: 0; }
  .admin-body .account-metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 18px; }
  .admin-body .account-metrics > div:nth-child(3n+1) { padding-left: 10px; }
  .admin-body .account-metrics > div:nth-child(2n+1) { border-left: 0; padding-left: 0; }
  .account-table th, .account-table td { padding: 12px; }
  .admin-model-summary { padding: 16px 12px; }
  .admin-model-body { padding: 4px 12px 16px; }
  .text-input, .admin-body .text-input, .search input, .copy-field input { font-size: 16px; }
  .account-filters label, .security-filters label { font-size: 12px; }
  .search { max-width: 145px; }
  .search input { width: 100%; min-width: 0; }
  .account-list-toolbar .search { max-width: 100%; }
  .content-toolbar { flex-wrap: wrap; gap: 8px; padding: 12px 0; }
  .content-toolbar .tabs { min-height: 38px; gap: 16px; }
  .content-toolbar .tabs button { font-size: 12px; }
  .settings-heading h2, .admin-body .settings-heading h2 { font-size: 16px; }
  .tools-grid { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  dialog, .secondary-dialog { padding: 22px; }
  .dialog-heading h2, #password-dialog .dialog-heading h2 { font-size: 18px; }
  .viewer-controls .icon-button { transition: none; }
  .page-footer { flex-wrap: wrap; gap: 8px; }
  body.demo-workspace .model-workspace { min-height: 0; }
  body.demo-workspace #jobs { max-height: 260px; }
  body.demo-workspace .preview-stage { min-height: 440px; }
}