:root {
  --c-bg: #f3f8fc;
  --c-surface: #ffffff;
  --c-surface-2: #e8f1f8;
  --c-text: #0c2233;
  --c-muted: #45606f;
  --c-border: #d3e3ee;
  --c-accent: #0369a1;
  --c-on-accent: #ffffff;
  --c-link: #075985;
  --c-down: #0369a1;
  --c-up: #0f766e;
  --c-track: #dbe8f1;
  --s-radius: 8px;
  --s-btn-radius: 999px;
  --s-font: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --s-font-head: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --s-font-num: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --s-maxw: 64rem;
  color-scheme: light;
}
*, *::before, *::after {
  box-sizing: border-box;
}
html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}
body {
  margin: 0;
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--s-font);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-wrap: break-word;
}

a {
  color: var(--c-link);
  text-underline-offset: .15em;
}
a:hover {
  text-decoration-thickness: 2px;
}
h1, h2, h3 {
  font-family: var(--s-font-head);
  font-weight: 750;
  letter-spacing: 0;
  line-height: 1.2;
  margin: 0 0 .5em;
}
h1 {
  font-size: clamp(1.9rem, 5vw, 2.75rem);
}
h2 {
  font-size: 1.375rem;
}
h3 {
  font-size: 1rem;
}

p {
  margin: 0 0 1em;
}
ul, ol {
  padding-left: 1.25em;
}
:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 2px;
}
.sr_skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--c-accent);
  color: var(--c-on-accent);
  padding: .5rem 1rem;
  z-index: 10;
}
.sr_skip:focus {
  left: 1rem;
  top: 1rem;
}

.inner {
  width: 100%;
  max-width: var(--s-maxw);
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 2rem);
}
.topbar {
  border-bottom: 1px solid var(--c-border);
  background: var(--c-surface);
}
.header_wrap {
  max-width: var(--s-maxw);
  margin: 0 auto;
  padding: 0.875rem clamp(1rem, 4vw, 2rem);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .75rem 1.5rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  color: var(--c-text);
  font-weight: 700;
  font-size: 1.125rem;
  text-decoration: none;
  letter-spacing: 0;
}

.logo_mark {
  display: inline-flex;
  color: var(--c-accent);
}
.nav_list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: .25rem 1.25rem;
}
.link {
  color: var(--c-muted);
  text-decoration: none;
  font-weight: 500;
  padding: .25rem 0;
  display: inline-block;
}
.link:hover {
  color: var(--c-text);
}
.header_wrap {
  flex-direction: column;
  text-align: center;
}
.current {
  color: var(--c-text);
  box-shadow: inset 0 -2px 0 var(--c-accent);
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.content {
  flex: 1 0 auto;
}
.cta_link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  min-height: 44px;
  padding: .7rem 1.4rem;
  border: 0;
  border-radius: var(--s-btn-radius);
  background: var(--c-accent);
  color: var(--c-on-accent);
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}

.cta_link:hover {
  filter: brightness(1.08);
}
.cta_link:disabled {
  opacity: .6;
  cursor: default;
}

.panel {
  background: var(--c-surface);
  border-radius: var(--s-radius);
  padding: 1.5rem;
  border: 1px solid var(--c-border);
}

.band {
  margin-top: 3rem;
}

.block_title {
  margin-bottom: 0.75rem;
}
.lead {
  color: var(--c-muted);
  font-size: 1.0625rem;
  max-width: 42em;
}
.page_head {
  padding: 2.5rem 0 1rem;
}
.subtle {
  color: var(--c-muted);
  font-size: .875rem;
}
.arrow_link {
  font-weight: 600;
}

.status_code {
  font-family: var(--s-font-num);
  font-size: clamp(3rem, 12vw, 5rem);
  font-weight: 700;
  line-height: 1;
  color: var(--c-accent);
  margin: 0 0 .5rem;
}
.trail ol {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  font-size: .875rem;
  color: var(--c-muted);
}
.trail li+li::before {
  content: "/";
  margin-right: .5rem;
}
.text {
  max-width: 44rem;
}
.row {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 13rem), 1fr));
}
.item_title {
  display: block;
  margin: 0 0 .25rem;
  font-size: 1rem;
}
.item_text {
  color: var(--c-muted);
  margin: 0;
}
ul.points, ol.sequence {
  padding-left: 1.25em;
}
ul.points li, ol.sequence li {
  margin: .5rem 0;
}

dl.points dd {
  margin: 0 0 1rem;
}
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  background: var(--c-accent);
  color: var(--c-on-accent);
  font-weight: 700;
  margin-bottom: .5rem;
}
.accordion_item {
  border-bottom: 1px solid var(--c-border);
  padding: 0.75rem 0;
}
.faq_q {
  font-weight: 600;
  font-size: 1.0625rem;
  margin: 0;
}

summary.faq_q {
  cursor: pointer;
  list-style-position: outside;
}
.accordion_body {
  color: var(--c-muted);
  margin: .5rem 0 0;
}
.accordion_body p:last-child {
  margin-bottom: 0;
}

dl.qa dt {
  margin-top: 1.25rem;
}
.specs {
  width: 100%;
  border-collapse: collapse;
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
}
.param {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--c-border);
  padding: .6rem 0;
}
table.specs .param {
  display: table-row;
}
table.specs th, table.specs td {
  padding: .6rem .75rem .6rem 0;
  text-align: left;
  border-bottom: 1px solid var(--c-border);
  vertical-align: top;
}
table.specs td {
  text-align: right;
  padding-right: 0;
}
.spec_name {
  color: var(--c-muted);
  font-weight: 500;
  margin: 0;
}
.param_value {
  margin: 0;
  font-weight: 600;
  text-align: right;
}
.on_page {
  border-left: 3px solid var(--c-accent);
  padding-left: 1rem;
  margin: 1.5rem 0;
}
.on_page ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.on_page li {
  margin: .25rem 0;
}
.page_nav_title {
  font-weight: 600;
  margin-bottom: .5rem;
}

.dict dt {
  font-weight: 700;
  margin-top: 1.25rem;
}
.dict dd {
  margin: .25rem 0 0;
  color: var(--c-muted);
}
.bottom {
  margin-top: 4rem;
  border-top: 1px solid var(--c-border);
  background: var(--c-bg);
  color: var(--c-muted);
  font-size: .9375rem;
}
.footer_grid {
  max-width: var(--s-maxw);
  margin: 0 auto;
  padding: 2rem clamp(1rem, 4vw, 2rem);
}
.footer_list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.footer_list a {
  color: var(--c-muted);
}
.footer_list a:hover {
  color: var(--c-text);
}
.footer_title {
  color: var(--c-text);
  font-weight: 600;
  margin-bottom: .5rem;
}
.copyright {
  max-width: var(--s-maxw);
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 2rem) 2rem;
  font-size: .875rem;
}

.footer_grid {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .75rem 1.5rem;
}
.footer_list {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1rem;
}
.footer_grid p {
  margin: 0;
}
.copyright {
  padding: 0;
}
.caption {
  color: var(--c-muted);
  font-size: .8125rem;
  font-weight: 500;
}
.result_value {
  font-family: var(--s-font-num);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: 2rem;
  color: var(--c-text);
}
.suffix {
  color: var(--c-muted);
  font-size: .875rem;
}
.values dd {
  margin: 0;
}
.is_down .result_value {
  color: var(--c-down);
}
.is_up .result_value {
  color: var(--c-up);
}
.status {
  color: var(--c-muted);
  min-height: 1.5em;
  margin: .75rem 0;
}

.bar {
  height: 6px;
  background: var(--c-track);
  border-radius: 999px;
  overflow: hidden;
  margin-top: .5rem;
}
.bar_fill {
  height: 100%;
  width: 0;
  background: var(--c-accent);
  transition: width .2s linear;
}

.is_down .bar_fill {
  background: var(--c-down);
}

.is_up .bar_fill {
  background: var(--c-up);
}
.run_progress {
  height: 2px;
  background: var(--c-track);
  border-radius: 999px;
  overflow: hidden;
  margin: 1rem 0;
}

.loader_bar {
  height: 100%;
  width: 0;
  background: var(--c-accent);
  transition: width .2s linear;
}

.readout_value {
  font-family: var(--s-font-num);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
}
.unit {
  color: var(--c-muted);
  margin-left: .35rem;
}
.headline {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 2.5rem 0 0.5rem;
}
.headline > div:first-child {
  flex: 1 1 22rem;
}
.headline .lead {
  margin-bottom: 0;
}

.now {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: .5rem;
}
.now .status {
  margin: 0;
}
.readout_value {
  font-size: 1.125rem;
}
.speed_test[data-phase=idle] .status .readout_value, .speed_test[data-phase=idle] .status .unit {
  display: none;
}

.values {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.value_box {
  display: flex;
  flex-direction: column;
  gap: .25rem;
}
.two_col {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 15rem;
  gap: 2.5rem;
  align-items: start;
}
.aside {
  position: sticky;
  top: 1rem;
}
.aside .on_page {
  margin-top: 0;
}

@media (max-width: 640px) {
  .band {
    margin-top: 2rem;
  }
  .nav {
    margin-left: 0;
    width: 100%;
  }
  .values {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .two_col {
    grid-template-columns: 1fr;
  }
  .aside {
    position: static;
    order: -1;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
  }
}