/* Layout, mobile first: base 360 px, breakpoints 600 / 960 / 1280. Container max 1200 px with 16 px gutters.
   Header nav from 960 px; below it, a bottom tab bar (5 items, 56 px, safe-area insets). No horizontal
   scroll anywhere: html and body clip, and hashes, addresses and code wrap anywhere. */

html,
body {
  overflow-x: clip;
}

body {
  display: flex;
  flex-direction: column;
  padding-bottom: calc(var(--tabbar-h) + env(safe-area-inset-bottom, 0px));
}

.container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: 16px;
}

main {
  flex: 1 0 auto;
  min-width: 0;
  outline: none;
}

.page {
  padding-block: var(--s5) var(--s7);
}

.page > h1:first-child,
.page-head h1 {
  margin-top: var(--s2);
}

.page-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--s3);
  margin-bottom: var(--s5);
}

.stack > * + * {
  margin-top: var(--s4);
}

.grid {
  display: grid;
  gap: var(--s4);
  grid-template-columns: minmax(0, 1fr);
}

.row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s2);
  align-items: center;
}

.link-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.link-list a {
  display: inline-flex;
  align-items: center;
  min-height: var(--hit);
  min-width: var(--hit);
}

/* -- banners at the top ------------------------------------------------------------------------------ */

.banner-testnet {
  margin: 0;
  padding: var(--s2) 16px;
  background: var(--tint-warn);
  border-bottom: 1px solid rgba(229, 165, 58, 0.35);
  color: var(--fg);
  font-size: 0.9rem;
}

.banner-testnet .banner-text {
  display: block;
  margin: 0 auto;
  max-width: 1200px;
}

.banner-testnet .icon {
  color: var(--warn);
  vertical-align: -3px;
  margin-right: var(--s2);
}

/* A link inside the sentence (WCAG 2.5.8 inline exception): vertical padding widens the hit area without
   forcing an extra line on phones. */
.banner-testnet a {
  display: inline;
  padding-block: 10px;
  color: var(--accent);
}

#banner-status:empty {
  display: none;
}

#banner-status .banner {
  border-radius: 0;
  border-inline: 0;
  margin: 0;
}

/* -- header ------------------------------------------------------------------------------------------ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(9, 10, 17, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--s2) var(--s3);
  min-height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--s2);
  min-height: var(--hit);
  color: var(--fg);
  text-decoration: none;
  font-family: var(--serif);
  font-size: 1.1rem;
  white-space: nowrap;
}

.brand b {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 600;
}

.brand-mark {
  width: 28px;
  height: 28px;
  flex: none;
}

.topnav {
  display: none;
}

.topnav ul {
  display: flex;
  gap: var(--s1);
  list-style: none;
  margin: 0;
  padding: 0;
}

.topnav-link {
  display: inline-flex;
  align-items: center;
  gap: var(--s2);
  min-height: var(--hit);
  padding: 0 var(--s3);
  border-radius: var(--r1);
  color: var(--muted);
  text-decoration: none;
}

.topnav-link:hover {
  color: var(--fg);
  background: var(--bg3);
}

.topnav-link.is-active {
  color: var(--fg);
  box-shadow: inset 0 -2px 0 var(--accent);
}

.header-tools {
  display: flex;
  align-items: center;
  gap: var(--s2);
  margin-left: auto;
  min-width: 0;
}

/* Utility hiding wins over component display values (components.css loads later). */
@media (max-width: 399.98px) {
  .hide-xs {
    display: none !important;
  }
}

@media (max-width: 599.98px) {
  .hide-sm {
    display: none !important;
  }
}

/* The open-questions number after "Unblock": a small pill, so --r3 is right here. */
.nav-badge-slot:empty {
  display: none;
}

.nav-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  border-radius: var(--r3);
  background: var(--accent);
  color: var(--bg);
  font-size: 0.75rem;
  font-weight: 700;
  line-height: 1;
}

.tabbar-link .nav-badge-slot {
  position: absolute;
  top: 4px;
  left: calc(50% + 6px);
}

/* One header row on a phone: the mark alone, the identity as its icon. */
@media (max-width: 479.98px) {
  .brand-name,
  .header-tools .identity-chip .chip-text {
    display: none;
  }

  .brand {
    min-width: var(--hit);
    justify-content: center;
  }
}

/* -- tab bar (under 960 px) --------------------------------------------------------------------------- */

.tabbar {
  position: fixed;
  inset: auto 0 0 0;
  z-index: 60;
  background: var(--bg2);
  border-top: 1px solid var(--line-strong);
  box-shadow: 0 -6px 18px rgba(0, 0, 0, 0.35);
  padding-bottom: env(safe-area-inset-bottom, 0px);
  padding-left: env(safe-area-inset-left, 0px);
  padding-right: env(safe-area-inset-right, 0px);
}

.tabbar-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  list-style: none;
  margin: 0;
  padding: 0;
  min-height: var(--tabbar-h);
}

.tabbar-link {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  height: 100%;
  min-height: var(--tabbar-h);
  padding: 4px 2px;
  min-width: var(--hit);
  color: var(--muted);
  text-decoration: none;
  font-size: 0.72rem;
  line-height: 1.1;
}

.tabbar-link.is-active {
  color: var(--accent);
}

.tabbar-link[aria-current="page"] .tabbar-label {
  font-weight: 600;
}

.tabbar-icon {
  position: relative;
  display: inline-flex;
}

.tabbar-dot {
  position: absolute;
  top: -3px;
  right: -6px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  box-shadow: 0 0 0 2px var(--bg2);
}

/* The shape says the state too, not only the colour: filled (working), ring (waiting, paused, resting),
   red with a mark (needs attention). The words are in the link's accessible name. */
.tabbar-dot-run {
  background: var(--ok);
}

.tabbar-dot-wait,
.tabbar-dot-pause,
.tabbar-dot-rest {
  background: var(--bg2);
  border: 2px solid var(--warn);
}

.tabbar-dot-error {
  top: -5px;
  right: -8px;
  width: 14px;
  height: 14px;
  background: var(--err);
}

.tabbar-dot-error::after {
  content: "!";
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--bg);
  font-size: 11px;
  font-weight: 700;
  line-height: 1;
}

.tabbar-label {
  max-width: 100%;
  text-align: center;
  overflow-wrap: anywhere;
}

/* -- footer ------------------------------------------------------------------------------------------ */

.site-footer {
  margin-top: var(--s7);
  border-top: 1px solid var(--line);
  background: var(--bg2);
  padding-block: var(--s5);
}

.footer-inner {
  display: grid;
  gap: var(--s5);
  grid-template-columns: minmax(0, 1fr);
}

.footer-title {
  font-family: var(--sans);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: var(--s2);
}

.footer-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  column-gap: var(--s5);
}

.footer-nav a {
  display: inline-flex;
  align-items: center;
  min-height: var(--hit);
  min-width: var(--hit);
  color: var(--fg);
  text-decoration: none;
}

.footer-nav a:hover {
  text-decoration: underline;
}

.footer-note {
  margin-top: var(--s4);
  color: var(--muted);
  font-size: 0.9rem;
}

.noscript {
  padding-block: var(--s5);
}

/* -- responsive tables: cards under 600 px -------------------------------------------------------------- */

.rtable-wrap {
  width: 100%;
}

@media (max-width: 599.98px) {
  .rtable,
  .rtable tbody,
  .rtable tr,
  .rtable th,
  .rtable td {
    display: block;
    width: 100%;
  }

  .rtable thead {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
  }

  .rtable tr {
    padding: var(--s3);
    margin-bottom: var(--s3);
    border: 1px solid var(--line);
    border-radius: var(--r2);
    background: var(--bg2);
  }

  .rtable tbody th,
  .rtable td {
    display: grid;
    grid-template-columns: minmax(0, 38%) minmax(0, 1fr);
    gap: var(--s2);
    padding: var(--s1) 0;
    border: 0;
    text-align: left;
  }

  .rtable tbody th::before,
  .rtable td::before {
    content: attr(data-label);
    color: var(--muted);
    font-size: 0.85rem;
    font-weight: 400;
  }

  .rtable .num {
    text-align: left;
  }
}

/* -- breakpoints ------------------------------------------------------------------------------------- */

@media (min-width: 600px) {
  .grid-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-inner {
    grid-template-columns: 1fr 2fr;
  }
}

@media (min-width: 960px) {
  body {
    padding-bottom: 0;
  }

  .tabbar {
    display: none;
  }

  .topnav {
    display: block;
    min-width: 0;
  }

  .topnav-link {
    padding: 0 var(--s2);
    white-space: nowrap;
  }

  .grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page {
    padding-block: var(--s6) var(--s7);
  }
}

@media (min-width: 1280px) {
  .container {
    padding-inline: 24px;
  }

  .topnav-link {
    padding: 0 var(--s3);
  }

  /* One row from 1280 px; between 960 and 1279 px the tools may wrap under the navigation. */
  .header-inner {
    flex-wrap: nowrap;
  }
}

.header-tools .pill,
.banner-testnet .badge {
  white-space: nowrap;
}

.banner-testnet .gateway-link {
  min-height: 0;
  padding-block: 10px;
  margin-right: var(--s1);
  vertical-align: baseline;
}

@media (min-width: 960px) {
  .header-tools {
    flex-shrink: 0;
  }
}