.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.app-header-inner,
.app-header-tools,
.context-switcher,
.app-nav-inner {
  display: flex;
  align-items: center;
}

.app-header-inner {
  min-height: 3.5rem;
}

.app-header-tools {
  justify-content: flex-end;
  gap: 0.5rem;
}

/* 「どの立場で表示しているか」。AGORA本体の権限バッジと同じく、ヘッダーに1行で出す */
.context-switcher {
  min-width: 0;
  flex-wrap: nowrap;
  gap: 0.4rem;
}

.context-switcher > span:first-child {
  color: var(--robotics-muted);
  font-size: 0.78rem;
  font-weight: 700;
  white-space: nowrap;
}

/* 未ログインのときの「ログイン」。幅が足りなくても折り返さず、ヘッダーを1行に保つ */
.header-login {
  min-height: 2.5rem;
  padding-block: 0.35rem;
  white-space: nowrap;
}

.header-account {
  display: flex;
  min-height: 2.75rem;
  align-items: center;
  gap: 0.75rem;
  color: var(--robotics-navy);
}

.header-account-name {
  max-width: 12rem;
  overflow: hidden;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.header-account-link {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--robotics-border);
  border-radius: 999px;
  color: var(--robotics-navy);
  font-size: 0.88rem;
  text-decoration: none;
}

.header-account-link:hover {
  border-color: var(--robotics-navy);
  background: var(--robotics-info-bg);
}

.guide-links {
  margin: 0;
  padding-left: 1.2rem;
}

.context-switcher select {
  min-width: 8rem;
  max-width: 14rem;
  min-height: 2.5rem;
  padding: 0.35rem 0.8rem;
  border: 1px solid var(--robotics-border);
  border-radius: 999px;
  background: var(--robotics-surface-soft);
  color: var(--robotics-ink);
  font: inherit;
  font-weight: 700;
  text-align: left;
}

.context-switcher select:focus-visible,
.app-nav-inner a:focus-visible,
.dashboard-list a:focus-visible {
  outline: 0.2rem solid #ffd24a;
  outline-offset: 0.15rem;
}

.app-primary-nav {
  border-bottom: 1px solid var(--robotics-border);
  background: var(--robotics-surface);
}

.app-nav-inner,
.app-breadcrumbs,
.app-layout {
  width: min(calc(100% - 2rem), var(--robotics-content));
  margin-inline: auto;
}

.app-nav-inner {
  min-height: 3.3rem;
  gap: 0.4rem;
  overflow-x: auto;
}

.app-nav-inner a,
.app-nav-inner span {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  padding: 0.55rem 0.95rem;
  border-radius: 999px;
  color: var(--robotics-navy);
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}

.app-nav-inner a:hover {
  background: var(--robotics-surface-soft);
}

.app-nav-inner [aria-current="page"] {
  background: var(--robotics-blue);
  color: var(--robotics-on-navy, #fff);
  font-weight: 800;
}

.app-nav-inner [aria-disabled="true"] {
  color: var(--robotics-muted);
}

.app-breadcrumbs {
  padding-block: 1rem 0;
}

.app-breadcrumbs ol {
  display: flex;
  margin: 0;
  padding: 0;
  gap: 0.45rem;
  list-style: none;
}

.app-breadcrumbs li + li::before {
  margin-right: 0.45rem;
  content: "/";
  color: var(--robotics-muted);
}

.app-layout {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(16rem, 1fr);
  gap: 1.4rem;
  padding-block: 1rem 2.5rem;
}

.app-main,
.app-rail {
  min-width: 0;
}

.app-main {
  display: grid;
  align-content: start;
  gap: 1.25rem;
}

/* AGORA本体の画面見出しと同じ、平らな見出し（影・大きな文字を使わない） */
.app-page-header {
  padding: 1.25rem 1.5rem;
  border: 1px solid var(--robotics-border);
  border-radius: var(--robotics-radius);
  background: var(--robotics-surface);
  box-shadow: none;
}

.app-page-header h1 {
  color: var(--robotics-navy);
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.app-status {
  margin: 0;
}

.state-panel {
  padding: 1rem 1.2rem;
  border: 1px solid var(--robotics-info-border);
  border-left-width: 0.4rem;
  border-radius: var(--robotics-radius-sm);
  background: var(--robotics-info-bg);
}

.state-panel h1 {
  font-size: clamp(1.3rem, 3vw, 1.7rem);
}

.state-panel h1,
.state-panel h2,
.state-panel p {
  margin-block: 0 0.45rem;
}

.state-warning,
.state-planned,
.state-plan,
.state-blocked {
  border-color: var(--robotics-pending-border, #b87800);
  background: var(--robotics-pending-bg, #fff6df);
}

.state-error,
.state-restricted {
  border-color: var(--robotics-danger-border, #a92b32);
  background: var(--robotics-danger-bg, #fff0f1);
}

.dashboard-section h2,
.settings-section h2 {
  margin-top: 0;
}

.dashboard-list {
  display: grid;
  margin: 0;
  padding: 0;
  gap: 0.6rem;
  list-style: none;
}

.dashboard-list a {
  display: block;
  min-height: 2.75rem;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--robotics-border);
  border-radius: var(--robotics-radius-sm);
  background: var(--robotics-surface-soft);
  font-weight: 700;
}

.empty-note {
  margin-bottom: 0;
  color: var(--robotics-muted);
}

.settings-list {
  display: grid;
  gap: 0.6rem;
}

.settings-list div {
  display: grid;
  grid-template-columns: minmax(8rem, 0.6fr) minmax(0, 1.4fr);
  padding-block: 0.55rem;
  border-bottom: 1px solid var(--robotics-border);
  gap: 1rem;
}

.settings-list dt {
  font-weight: 800;
}

.settings-list dd {
  margin: 0;
}

.settings-section button {
  min-height: 2.75rem;
}

.bootstrap-steps {
  display: grid;
  padding: 0;
  gap: 0.8rem;
  counter-reset: bootstrap;
  list-style: none;
}

.bootstrap-steps li {
  display: grid;
  grid-template-columns: minmax(8rem, 0.7fr) minmax(0, 2fr);
  padding: 0.8rem;
  border-left: 0.3rem solid var(--robotics-info-border);
  background: var(--robotics-surface-soft);
  gap: 0.8rem;
}

.app-rail {
  display: grid;
  align-content: start;
  gap: 1rem;
}

.source-list {
  display: grid;
  gap: 0.6rem;
}

.source-list div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--robotics-border);
}

.source-list dd {
  color: var(--robotics-muted);
  font-weight: 700;
}

.viewer-workspace {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(15rem, 1fr);
  gap: 1rem;
}

.viewer-stage {
  grid-column: 1;
}

.scene-tree-panel {
  grid-column: 2;
  grid-row: 1 / span 2;
}

.property-panel {
  grid-column: 1;
}

.viewer-canvas {
  display: block;
  width: 100%;
  min-height: 22rem;
  border: 1px solid var(--robotics-border);
  border-radius: var(--robotics-radius-sm);
  background: #10141c;
}

.viewer-snapshot {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--robotics-border);
  border-radius: var(--robotics-radius-sm);
}

.viewer-snapshot[hidden],
.viewer-canvas[hidden] {
  display: none;
}

.viewer-help,
.viewer-reference {
  color: var(--robotics-muted);
  font-size: 0.9rem;
}

.viewer-fallback-region {
  margin-top: 0.8rem;
}

.scene-tree {
  display: grid;
  max-height: 38rem;
  gap: 0.2rem;
  overflow: auto;
}

.scene-tree-item {
  display: grid;
  min-height: 2.75rem;
  padding: 0.55rem 0.7rem 0.55rem calc(0.7rem + var(--scene-depth) * 1rem);
  border: 1px solid transparent;
  border-radius: var(--robotics-radius-sm);
  background: transparent;
  color: var(--robotics-ink);
  font: inherit;
  text-align: left;
}

.scene-tree-item small {
  color: var(--robotics-muted);
}

.scene-tree-item[aria-selected="true"] {
  border-color: var(--robotics-info-border);
  background: var(--robotics-info-bg);
}

.scene-tree-item:focus-visible {
  outline: 0.2rem solid #ffd24a;
  outline-offset: -0.1rem;
}

.property-table-scroll {
  max-width: 100%;
  overflow-x: auto;
}

.property-table {
  width: 100%;
  border-collapse: collapse;
}

.property-table th,
.property-table td {
  padding: 0.6rem;
  border-bottom: 1px solid var(--robotics-border);
  text-align: left;
  vertical-align: top;
}

.viewer-provenance dl {
  display: grid;
  gap: 0.5rem;
}

.viewer-provenance dl div {
  display: grid;
  grid-template-columns: minmax(8rem, 0.5fr) minmax(0, 1.5fr);
  gap: 0.8rem;
}

.viewer-provenance dt {
  font-weight: 800;
}

.viewer-provenance dd {
  margin: 0;
  overflow-wrap: anywhere;
}

.project-card-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr));
  gap: 1rem;
  padding: 0;
  list-style: none;
}

.project-card-list article {
  height: 100%;
  padding: 1rem;
  border: 1px solid var(--robotics-border);
  border-radius: 0.75rem;
  background: var(--robotics-surface, #fff);
}

.project-facts,
.project-source-health dl {
  display: grid;
  gap: 0.55rem;
  margin: 0;
}

.project-facts div,
.project-source-health dl div {
  display: grid;
  grid-template-columns: minmax(8rem, 0.45fr) minmax(0, 1fr);
  gap: 0.75rem;
}

.project-facts dt,
.project-source-health dt {
  font-weight: 800;
}

.project-facts dd,
.project-source-health dd {
  margin: 0;
  overflow-wrap: anywhere;
}

.project-local-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-block: 1rem;
}

.project-local-nav a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  padding: 0.55rem 0.8rem;
  border: 1px solid var(--robotics-border);
  border-radius: 0.6rem;
}

.project-local-nav a[aria-current="page"] {
  border-color: currentcolor;
  font-weight: 800;
}

.project-overview-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

@media (max-width: 56rem) {
  .app-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .app-rail {
    order: 2;
  }

  .viewer-workspace {
    grid-template-columns: minmax(0, 1fr);
  }

  .project-overview-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .viewer-stage,
  .scene-tree-panel,
  .property-panel {
    grid-column: 1;
    grid-row: auto;
  }
}

@media (max-width: 36rem) {
  .bootstrap-steps li,
  .source-list div {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
  }

  .app-nav-inner {
    flex-wrap: wrap;
    padding-block: 0.35rem;
    gap: 0.25rem;
    overflow-x: visible;
  }

  .app-nav-inner a {
    padding: 0.4rem 0.8rem;
    border: 1px solid var(--robotics-border);
    font-size: 0.9rem;
  }

  .app-nav-inner [aria-current="page"] {
    border-color: var(--robotics-blue);
  }

  .app-page-header,
  .panel {
    padding: 1rem;
  }

  .settings-list div {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.25rem;
  }

  .viewer-canvas {
    min-height: 15rem;
  }

  .viewer-provenance dl div {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.2rem;
  }

  .project-facts div,
  .project-source-health dl div {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .app-layout *,
  .app-layout *::before,
  .app-layout *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

@media (max-width: 45rem) {
  .context-switcher > span:first-child,
  .header-account-name {
    display: none;
  }

  .context-switcher select {
    min-width: 0;
    max-width: 8.5rem;
  }

  .header-account-link {
    min-height: 2.5rem;
    padding-inline: 0.7rem;
  }
}

/* Projectを作る（RBT-R011）：入力フォーム。CSPで inline style を使えないため、すべてクラスで指定する */
.project-create-form form {
  display: grid;
  gap: 1rem;
  max-width: 40rem;
}

.project-create-form .form-field {
  display: grid;
  gap: 0.35rem;
}

.project-create-form label {
  font-weight: 700;
}

.project-create-form input[type="text"],
.project-create-form textarea,
.project-create-form select {
  width: 100%;
  min-height: 44px;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--robotics-border, #c7ccd4);
  border-radius: var(--robotics-radius, 0.5rem);
  background: var(--robotics-surface, #fff);
  color: var(--robotics-ink, inherit);
  font: inherit;
}

.project-create-form textarea {
  min-height: 7rem;
  resize: vertical;
}

.project-create-form .form-help {
  margin: 0;
  color: var(--robotics-muted, inherit);
  font-size: 0.85rem;
  line-height: 1.6;
}

.project-create-form .form-error {
  margin: 0 0 0.5rem;
  font-weight: 700;
}

.project-create-form button[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Projectの管理（編集・保管・元に戻す）。CSPで inline style を使えないため、クラスで指定する */
.project-actions form {
  display: grid;
  gap: 1rem;
  max-width: 40rem;
  margin-top: 1rem;
}

.project-actions .form-field {
  display: grid;
  gap: 0.35rem;
}

.project-actions label {
  font-weight: 700;
}

.project-actions input[type="text"],
.project-actions textarea {
  width: 100%;
  min-height: 44px;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--robotics-border, #c7ccd4);
  border-radius: var(--robotics-radius, 0.5rem);
  background: var(--robotics-surface, #fff);
  color: var(--robotics-ink, inherit);
  font: inherit;
}

.project-actions textarea {
  min-height: 7rem;
  resize: vertical;
}

.project-actions .form-help {
  margin: 0.5rem 0;
  font-size: 0.85rem;
  line-height: 1.6;
}

.project-actions .form-error {
  margin: 0.5rem 0;
  font-weight: 700;
}

.project-actions button[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ロボット・環境のひな形ライブラリ（RBT-R032・RBT-R033）。CSPのため、スタイルはクラスで指定する */
.template-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(18rem, 1fr));
  gap: 1rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.template-grid > li {
  min-width: 0;
}

.template-card {
  display: grid;
  height: 100%;
  gap: 0.6rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--robotics-border, #c7ccd4);
  border-radius: var(--robotics-radius, 0.5rem);
  background: var(--robotics-surface, #fff);
  align-content: start;
}

.template-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.6rem;
}

.template-card h3 {
  margin: 0;
  font-size: 1.05rem;
  overflow-wrap: anywhere;
}

.template-card p {
  margin: 0;
  line-height: 1.7;
}

.template-highlights {
  margin: 0;
  padding-left: 1.2rem;
  line-height: 1.7;
}

.template-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.template-tags li {
  padding: 0.1rem 0.6rem;
  border: 1px solid var(--robotics-border, #c7ccd4);
  border-radius: 999px;
  font-size: 0.8rem;
}

.template-viewer-note {
  color: var(--robotics-muted, inherit);
  font-size: 0.85rem;
}

/* 個人同士の共有（D-988）。CSPのため、スタイルはクラスで指定する */
.project-sharing .sharing-list {
  display: grid;
  gap: 0.75rem;
  margin: 0.75rem 0;
  padding: 0;
  list-style: none;
}

.project-sharing .sharing-row {
  display: grid;
  gap: 0.4rem;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--robotics-border, #c7ccd4);
  border-radius: var(--robotics-radius, 0.5rem);
}

.project-sharing .sharing-row p {
  margin: 0;
  overflow-wrap: anywhere;
}