.utility-navigation {
  position: relative;
  display: flex;
  flex-direction: column;
  margin-top: auto;
  padding: 1.15rem clamp(1rem, 1.2vw, 1.25rem) 1.35rem;
  gap: 0.45rem;
}

.utility-navigation::before {
  position: absolute;
  top: 0;
  right: clamp(2rem, 2.6vw, 2.65rem);
  left: clamp(2rem, 2.6vw, 2.65rem);
  height: 1px;
  background: var(--color-border);
  content: "";
}

.utility-navigation .nav-link {
  min-height: 3.35rem;
  color: var(--color-muted);
  font-size: 0.84rem;
}

.utility-navigation .nav-icon {
  width: 1.3rem;
  height: 1.3rem;
}

.utility-page {
  width: 100%;
  max-width: 76rem;
  animation: view-enter 220ms var(--ease-out) both;
}

.utility-state-page {
  display: grid;
  width: min(42rem, 100%);
  min-height: calc(100vh - var(--topbar-height) - 8rem);
  place-items: center;
  align-content: center;
  margin: 0 auto;
  text-align: center;
}

.utility-state-icon {
  display: grid;
  width: 5rem;
  height: 5rem;
  place-items: center;
  border: 1px solid #cce3fa;
  border-radius: 1.35rem;
  margin-bottom: 1.3rem;
  background: var(--color-blue-faint);
  color: var(--color-blue);
  transform: rotate(-3deg);
}

.utility-state-icon--warning { border-color: #ead39f; background: #fff8e8; color: #a36d10; }
.utility-state-icon svg { width: 2.2rem; height: 2.2rem; }
.utility-state-page .utility-page-eyebrow { margin-bottom: 0.5rem; }
.utility-state-page h2 { margin: 0; color: var(--color-text); font-size: clamp(1.7rem, 3vw, 2.35rem); letter-spacing: -0.045em; }
.utility-state-page > p:not(.utility-page-eyebrow) { max-width: 36rem; margin: 0.85rem auto 0; color: var(--color-muted); font-size: 0.9rem; line-height: 1.65; }
.utility-state-actions { display: flex; justify-content: center; margin-top: 1.6rem; gap: 0.75rem; }
.utility-state-actions a { display: inline-flex; align-items: center; justify-content: center; }
.utility-state-note { display: flex; max-width: 34rem; align-items: center; padding: 0.8rem 1rem; border: 1px solid var(--color-border); border-radius: 0.8rem; margin-top: 1.4rem; background: var(--color-surface); color: var(--color-muted); font-size: 0.75rem; gap: 0.65rem; text-align: left; }
.utility-state-note svg { width: 1.1rem; flex: 0 0 auto; color: var(--color-blue); }

@media (max-width: 30rem) {
  .utility-state-actions { width: 100%; flex-direction: column; }
  .utility-state-actions > * { width: 100%; }
}

.utility-page-header {
  margin-bottom: var(--space-8);
}

.utility-page-eyebrow {
  margin-bottom: 0.55rem;
  color: var(--color-blue);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.utility-page-header h2 {
  margin: 0;
  color: var(--color-text);
  font-size: 1.55rem;
  font-weight: 700;
  letter-spacing: -0.035em;
}

.utility-page-header > p:last-child {
  max-width: 40rem;
  margin-top: 0.65rem;
  color: var(--color-muted);
  font-size: 0.82rem;
  line-height: 1.65;
}

.settings-form {
  border-top: 1px solid var(--color-border-strong);
}

.settings-row {
  display: grid;
  min-height: 6.4rem;
  align-items: center;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--color-border);
  grid-template-columns: minmax(0, 1fr) minmax(14rem, 21rem);
  gap: var(--space-8);
}

.settings-row-copy label {
  display: block;
  color: var(--color-text);
  font-size: 0.88rem;
  font-weight: 650;
}

.settings-row-copy p {
  margin-top: 0.35rem;
  color: var(--color-muted);
  font-size: 0.75rem;
  line-height: 1.55;
}

.settings-row select {
  width: 100%;
  min-height: 3rem;
  padding: 0 0.9rem;
  border: 1px solid var(--color-border-strong);
  border-radius: 0.55rem;
  outline: none;
  background: var(--color-surface);
  color: var(--color-text-soft);
  font: inherit;
  font-size: 0.8rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.settings-row select:focus {
  border-color: #8bc2f9;
  box-shadow: 0 0 0 3px rgb(8 125 245 / 9%);
}

.settings-theme-switch {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-self: end;
  cursor: pointer;
  gap: 0.8rem;
}

.settings-theme-switch input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

.settings-theme-track {
  position: relative;
  display: inline-flex;
  width: 3.25rem;
  height: 1.8rem;
  flex: 0 0 auto;
  align-items: center;
  padding: 0.2rem;
  border: 1px solid var(--color-border-strong);
  border-radius: 999px;
  background: #e8eef4;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.settings-theme-track > span {
  display: block;
  width: 1.3rem;
  height: 1.3rem;
  border-radius: 50%;
  background: var(--color-surface);
  box-shadow: 0 2px 5px rgb(21 54 84 / 20%);
  transform: translateX(0);
  transition: transform var(--transition-smooth), background-color var(--transition-fast);
}

.settings-theme-switch input:checked + .settings-theme-track {
  border-color: var(--color-blue);
  background: var(--color-blue);
  box-shadow: 0 0 0 3px rgb(8 125 245 / 10%);
}

.settings-theme-switch input:checked + .settings-theme-track > span {
  background: #ffffff;
  transform: translateX(1.4rem);
}

.settings-theme-switch input:focus-visible + .settings-theme-track {
  outline: 3px solid rgb(8 125 245 / 30%);
  outline-offset: 3px;
}

.settings-theme-value {
  min-width: 1.7rem;
  color: var(--color-text-soft);
  font-size: 0.76rem;
  font-weight: 650;
}

.settings-actions {
  display: flex;
  min-height: 5.6rem;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-5);
}

.settings-save-status {
  min-height: 1rem;
  color: #2d7f5e;
  font-size: 0.74rem;
}

.settings-session {
  display: flex;
  min-height: 6.4rem;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-8);
  padding: 1.25rem 0;
  border-top: 1px solid var(--color-border-strong);
  border-bottom: 1px solid var(--color-border);
  gap: var(--space-8);
}

.settings-session h3 {
  color: var(--color-text);
  font-size: 0.88rem;
  font-weight: 650;
}

.settings-session p {
  margin-top: 0.35rem;
  color: var(--color-muted);
  font-size: 0.75rem;
}

.settings-sign-out-button {
  min-height: 2.85rem;
  flex: 0 0 auto;
  padding: 0 1rem;
  border: 1px solid var(--color-border-strong);
  border-radius: 0.55rem;
  background: var(--color-surface);
  color: var(--color-text-soft);
  cursor: pointer;
  font-size: 0.76rem;
  font-weight: 650;
  transition: border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.settings-sign-out-button:hover {
  border-color: #e3b7b7;
  color: var(--color-error);
  transform: translateY(-1px);
}

.settings-format-preview {
  display: grid;
  padding: 1rem 1.1rem;
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  background: var(--color-blue-faint);
  gap: 0.3rem;
}

.settings-format-preview span,
.settings-format-preview small { color: var(--color-muted); font-size: 0.68rem; }
.settings-format-preview strong { color: var(--color-text); font-size: 0.9rem; }

.settings-devices {
  max-width: 52rem;
  margin-top: var(--space-8);
  padding-top: var(--space-7);
  border-top: 1px solid var(--color-border-strong);
}

.settings-devices > header,
.settings-devices li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.settings-devices h3,
.settings-devices p { margin: 0; }
.settings-devices p { margin-top: 0.35rem; color: var(--color-muted); font-size: 0.75rem; }
.settings-devices ul { margin: var(--space-5) 0 0; padding: 0; border-top: 1px solid var(--color-border); list-style: none; }
.settings-devices li { min-height: 4.5rem; border-bottom: 1px solid var(--color-border); }
.settings-devices li > i { color: var(--color-blue); }
.settings-devices li > div { min-width: 0; flex: 1; }
.settings-devices li strong,
.settings-devices li span { display: block; }
.settings-devices li span { margin-top: 0.25rem; color: var(--color-muted); font-size: 0.7rem; }
.settings-devices li em { color: #278159; font-size: 0.68rem; font-style: normal; font-weight: 650; }
.settings-devices li button { padding: 0.4rem 0.6rem; border-radius: 0.5rem; color: var(--color-error); cursor: pointer; font: inherit; font-size: 0.7rem; font-weight: 650; }

.about-product {
  max-width: 52rem;
  padding: 1.7rem 0 2rem;
  border-top: 1px solid var(--color-border-strong);
  border-bottom: 1px solid var(--color-border);
}

.about-product-label {
  color: var(--color-blue);
  font-size: 0.67rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.about-product h3 {
  margin-top: 0.55rem;
  color: var(--color-text);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.035em;
}

.about-product > p:last-child {
  max-width: 37rem;
  margin-top: 0.65rem;
  color: var(--color-muted);
  font-size: 0.8rem;
  line-height: 1.7;
}

.about-information {
  max-width: 52rem;
  margin-top: var(--space-5);
}

.about-information > div {
  display: grid;
  min-height: 4.4rem;
  align-items: center;
  border-bottom: 1px solid var(--color-border);
  grid-template-columns: 11rem minmax(0, 1fr);
  gap: var(--space-6);
}

.about-information dt {
  color: var(--color-muted);
  font-size: 0.72rem;
  font-weight: 600;
}

.about-information dd {
  margin: 0;
  color: var(--color-text-soft);
  font-size: 0.82rem;
  font-weight: 570;
}

.about-stage {
  display: inline-flex;
  min-height: 1.65rem;
  align-items: center;
  padding: 0 0.62rem;
  border-radius: 999px;
  background: #eaf4ff;
  color: var(--color-blue);
  font-size: 0.67rem;
  font-weight: 650;
}

.about-page {
  max-width: 72rem;
  padding-bottom: var(--space-8);
}

.about-page-header {
  max-width: 54rem;
}

.about-development-overview {
  display: grid;
  overflow: hidden;
  border: 1px solid var(--color-border-strong);
  border-radius: 1rem;
  background: var(--color-surface);
  box-shadow: var(--shadow-panel);
  grid-template-columns: minmax(0, 1.5fr) minmax(17rem, 0.72fr);
}

.about-overview-copy {
  padding: clamp(1.5rem, 3vw, 2.25rem);
}

.about-overview-copy h3 {
  max-width: 38rem;
  margin: 1rem 0 0;
  color: var(--color-text);
  font-size: clamp(1.3rem, 2.2vw, 1.75rem);
  font-weight: 720;
  letter-spacing: -0.04em;
  line-height: 1.2;
}

.about-overview-copy > p {
  max-width: 44rem;
  margin: 0.85rem 0 0;
  color: var(--color-muted);
  font-size: 0.78rem;
  line-height: 1.72;
}

.about-release-summary {
  display: grid;
  margin: 0;
  padding: 0 clamp(1.25rem, 2.5vw, 1.75rem);
  border-left: 1px solid var(--color-border);
  background: var(--color-blue-faint);
  align-content: center;
}

.about-release-summary > div {
  padding: 1rem 0;
  border-bottom: 1px solid var(--color-border);
}

.about-release-summary > div:last-child {
  border-bottom: 0;
}

.about-release-summary dt {
  color: var(--color-muted);
  font-size: 0.63rem;
  font-weight: 680;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.about-release-summary dd {
  margin: 0.35rem 0 0;
  color: var(--color-text);
  font-size: 0.76rem;
  font-weight: 650;
  line-height: 1.45;
}

.about-section {
  max-width: 68rem;
  margin-top: clamp(2.5rem, 5vw, 4rem);
}

.about-section-header {
  max-width: 46rem;
  margin-bottom: 1.25rem;
}

.about-section-header > p {
  margin: 0 0 0.42rem;
  color: var(--color-blue);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.about-section-header h3 {
  margin: 0;
  color: var(--color-text);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.025em;
}

.about-section-header > span {
  display: block;
  margin-top: 0.55rem;
  color: var(--color-muted);
  font-size: 0.74rem;
  line-height: 1.55;
}

.about-purpose-grid,
.about-review-boundaries {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
}

.about-purpose-grid article,
.about-review-boundaries article {
  padding: 1.35rem;
  border: 1px solid var(--color-border);
  border-radius: 0.85rem;
  background: var(--color-surface);
}

.about-purpose-number {
  display: inline-grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border-radius: 0.55rem;
  background: var(--color-blue-faint);
  color: var(--color-blue);
  font-size: 0.65rem;
  font-weight: 750;
}

.about-purpose-grid h4,
.about-review-boundaries h4 {
  margin: 0.8rem 0 0;
  color: var(--color-text);
  font-size: 0.85rem;
  font-weight: 680;
}

.about-purpose-grid p {
  margin: 0.5rem 0 0;
  color: var(--color-muted);
  font-size: 0.74rem;
  line-height: 1.65;
}

.about-data-notice {
  display: grid;
  margin-top: 0.8rem;
  padding: 1rem 1.15rem;
  border: 1px solid #cce3fa;
  border-left: 3px solid var(--color-blue);
  border-radius: 0.8rem;
  background: var(--color-blue-faint);
  gap: 0.3rem;
}

.about-data-notice strong {
  color: var(--color-text);
  font-size: 0.76rem;
}

.about-data-notice p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.72rem;
  line-height: 1.6;
}

.about-roadmap {
  display: grid;
  margin: 0;
  padding: 0;
  gap: 1rem;
  list-style: none;
}

.about-roadmap > li {
  position: relative;
  display: grid;
  grid-template-columns: 3rem minmax(0, 1fr);
  gap: 1rem;
}

.about-roadmap > li:not(:last-child)::before {
  position: absolute;
  z-index: 0;
  top: 3rem;
  bottom: -1rem;
  left: 1.47rem;
  width: 1px;
  background: var(--color-border-strong);
  content: "";
}

.about-roadmap-marker {
  position: relative;
  z-index: 1;
  display: grid;
  width: 3rem;
  height: 3rem;
  place-items: center;
  border: 1px solid var(--color-border-strong);
  border-radius: 0.82rem;
  background: var(--color-surface);
  color: var(--color-muted);
}

.about-roadmap-marker span {
  font-size: 0.68rem;
  font-weight: 750;
}

.about-roadmap > li.is-current .about-roadmap-marker {
  border-color: #8fc5fa;
  background: var(--color-blue);
  color: #fff;
  box-shadow: 0 0.7rem 1.5rem -1rem rgb(8 125 245 / 76%);
}

.about-roadmap article {
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: 0.9rem;
  background: var(--color-surface);
}

.about-roadmap article > header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.15rem 1.25rem;
  border-bottom: 1px solid var(--color-border);
  gap: 1rem;
}

.about-roadmap article > header p {
  margin: 0 0 0.25rem;
  color: var(--color-muted);
  font-size: 0.61rem;
  font-weight: 680;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.about-roadmap article h4 {
  margin: 0;
  color: var(--color-text);
  font-size: 0.95rem;
}

.about-phase-status,
.about-phase-duration {
  display: inline-flex;
  min-height: 1.75rem;
  flex: 0 0 auto;
  align-items: center;
  padding: 0 0.65rem;
  border-radius: 999px;
  background: var(--color-blue-faint);
  color: var(--color-blue);
  font-size: 0.65rem;
  font-weight: 680;
}

.about-roadmap article > p {
  margin: 0;
  padding: 1.1rem 1.25rem 0;
  color: var(--color-muted);
  font-size: 0.75rem;
  line-height: 1.62;
}

.about-roadmap article > ul,
.about-review-boundaries ul {
  margin: 0;
  padding: 0;
  color: var(--color-text-soft);
  list-style: none;
}

.about-roadmap article > ul {
  display: grid;
  padding: 0.85rem 1.25rem 1.15rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem 1.25rem;
}

.about-roadmap article > ul li,
.about-review-boundaries li {
  position: relative;
  padding-left: 1rem;
  font-size: 0.71rem;
  line-height: 1.5;
}

.about-roadmap article > ul li::before,
.about-review-boundaries li::before {
  position: absolute;
  top: 0.52em;
  left: 0;
  width: 0.34rem;
  height: 0.34rem;
  border-radius: 50%;
  background: var(--color-blue);
  content: "";
}

.about-roadmap article > footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem 1.25rem;
  border-top: 1px solid var(--color-border);
  background: var(--color-blue-faint);
  gap: 1rem;
}

.about-roadmap article > footer strong,
.about-roadmap article > footer span {
  font-size: 0.68rem;
}

.about-roadmap article > footer strong {
  color: var(--color-text-soft);
}

.about-roadmap article > footer span {
  color: var(--color-muted);
  text-align: right;
}

.about-delivery-commitment {
  display: grid;
  margin: 1.25rem 0 0 4rem;
  padding: 1.3rem 1.4rem;
  border: 1px solid #a9d2fa;
  border-radius: 0.9rem;
  background: var(--color-blue-faint);
  gap: 0.35rem;
}

.about-delivery-commitment > span {
  color: var(--color-blue);
  font-size: 0.63rem;
  font-weight: 720;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.about-delivery-commitment > strong {
  color: var(--color-text);
  font-size: 1rem;
}

.about-delivery-commitment p {
  max-width: 48rem;
  margin: 0.15rem 0 0;
  color: var(--color-muted);
  font-size: 0.73rem;
  line-height: 1.6;
}

.about-review-boundaries article:first-child {
  border-top: 3px solid #5cba8a;
}

.about-review-boundaries article:last-child {
  border-top: 3px solid var(--color-blue);
}

.about-review-boundaries h4 {
  margin-top: 0;
}

.about-review-boundaries ul {
  display: grid;
  margin-top: 0.8rem;
  gap: 0.55rem;
}

.about-information {
  margin-top: clamp(2.5rem, 5vw, 4rem);
}

@media (max-width: 42rem) {
  .settings-row {
    align-items: stretch;
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .settings-actions {
    align-items: stretch;
    flex-direction: column;
    justify-content: center;
  }

  .settings-actions .primary-action-button {
    width: 100%;
  }

  .settings-theme-switch {
    justify-self: start;
  }

  .settings-session {
    align-items: stretch;
    flex-direction: column;
  }

  .about-information > div {
    align-items: start;
    padding: 1rem 0;
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }

  .about-information dd {
    width: 100%;
    padding-left: 0;
  }

  .about-development-overview {
    grid-template-columns: 1fr;
  }

  .about-release-summary {
    border-top: 1px solid var(--color-border);
    border-left: 0;
  }

  .about-purpose-grid,
  .about-review-boundaries {
    grid-template-columns: 1fr;
  }

  .about-roadmap article > header,
  .about-roadmap article > footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .about-roadmap article > ul {
    grid-template-columns: 1fr;
  }

  .about-roadmap article > footer span {
    text-align: left;
  }

  .about-delivery-commitment {
    margin-left: 4rem;
  }
}

@media (max-width: 30rem) {
  .about-roadmap > li {
    grid-template-columns: 2.5rem minmax(0, 1fr);
    gap: 0.7rem;
  }

  .about-roadmap-marker {
    width: 2.5rem;
    height: 2.5rem;
  }

  .about-roadmap > li:not(:last-child)::before {
    top: 2.5rem;
    left: 1.22rem;
  }

  .about-roadmap article > header,
  .about-roadmap article > p,
  .about-roadmap article > ul,
  .about-roadmap article > footer {
    padding-right: 1rem;
    padding-left: 1rem;
  }

  .about-delivery-commitment {
    margin-left: 3.2rem;
    padding: 1.1rem;
  }
}