:root {
  color-scheme: dark;
  --bg: #080a10;
  --bg-soft: #101421;
  --panel: #171b27;
  --panel-2: #202636;
  --panel-3: #283044;
  --line: #343b4d;
  --line-strong: #515a70;
  --text: #f2f5fb;
  --muted: #a8afbd;
  --muted-2: #7d8492;
  --blue: #2f91ff;
  --green: #44d47b;
  --amber: #f2a340;
  --red: #f06262;
  --cyan: #56c8dd;
  --shadow: 0 18px 42px rgb(0 0 0 / 28%);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(circle at 18% 8%, rgb(47 145 255 / 12%), transparent 28rem),
    radial-gradient(circle at 80% 72%, rgb(120 70 190 / 10%), transparent 34rem),
    linear-gradient(180deg, var(--bg-soft), var(--bg));
  color: var(--text);
  font: 16px/1.58 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover { color: var(--text); }

.page {
  width: min(1180px, calc(100% - 44px));
  margin: 0 auto;
  padding: 28px 0 56px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgb(23 27 39 / 88%);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.nav-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.topbar a,
.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  border-radius: 8px;
  padding: 8px 11px;
  color: var(--text);
  font-weight: 700;
}

.topbar a:hover,
.button-link:hover,
.card:hover,
.side a:hover {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgb(47 145 255 / 18%);
}

.brand {
  color: var(--blue);
  font-weight: 900;
  letter-spacing: 0.12em;
}

.hero {
  display: grid;
  gap: 14px;
  padding: 28px 0 24px;
  border-bottom: 1px solid var(--line);
}

.kicker {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p { margin: 0; }

h1 {
  max-width: 880px;
  font-size: clamp(36px, 7vw, 66px);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 10px;
  font-size: 22px;
  line-height: 1.2;
  letter-spacing: 0;
}

h3 {
  font-size: 16px;
  line-height: 1.25;
  letter-spacing: 0;
}

.summary {
  max-width: 820px;
  color: var(--muted);
  font-size: 18px;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 22px;
  margin-top: 28px;
}

.article {
  display: grid;
  gap: 16px;
}

.panel,
.screenshot,
.side,
.card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.panel,
.screenshot {
  padding: 18px;
}

.panel p,
.panel li,
.screenshot p,
.muted {
  color: var(--muted);
}

.screenshot {
  overflow: hidden;
}

.screenshot img {
  display: block;
  width: 100%;
  border-radius: 6px;
  border: 1px solid var(--line);
}

.caption {
  margin-top: 10px;
  color: var(--muted);
  font-size: 13px;
}

.grid {
  display: grid;
  gap: 14px;
}

.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.section {
  margin-top: 24px;
}

.card {
  display: grid;
  gap: 8px;
  min-height: 128px;
  padding: 16px;
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.card:hover { transform: translateY(-2px); }

.card p { color: var(--muted); }

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-2);
  padding: 4px 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.badge.blue { color: var(--blue); border-color: rgb(47 145 255 / 38%); }
.badge.green { color: var(--green); border-color: rgb(68 212 123 / 38%); }
.badge.amber { color: var(--amber); border-color: rgb(242 163 64 / 38%); }

.flow {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
}

.flow-step {
  position: relative;
  min-height: 92px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-2);
  padding: 14px;
}

.flow-step:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -10px;
  width: 10px;
  height: 1px;
  background: var(--line-strong);
}

.flow-step strong {
  display: block;
  margin-bottom: 5px;
}

.flow-step span {
  color: var(--muted);
  font-size: 13px;
}

table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 10px;
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--panel-2);
  color: var(--text);
}

td { color: var(--muted); }

tr:last-child td { border-bottom: 0; }

ul,
ol {
  margin: 0;
  padding-left: 22px;
}

code {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel-2);
  padding: 1px 5px;
  color: var(--text);
}

.warning {
  border-color: rgb(242 163 64 / 40%);
  background: rgb(242 163 64 / 8%);
}

.success {
  border-color: rgb(68 212 123 / 34%);
  background: rgb(68 212 123 / 7%);
}

.side {
  position: sticky;
  top: 92px;
  align-self: start;
  display: grid;
  gap: 8px;
  padding: 16px;
}

.side a {
  display: block;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-2);
  padding: 9px 10px;
  color: var(--muted);
  font-weight: 700;
}

@media (max-width: 880px) {
  .layout,
  .grid-2,
  .grid-3,
  .grid-4,
  .flow {
    grid-template-columns: 1fr;
  }

  .side {
    position: static;
  }

  .flow-step:not(:last-child)::after {
    display: none;
  }
}