:root {
  color-scheme: dark;
  --bg: #101416;
  --panel: #171d20;
  --panel-2: #20282c;
  --text: #f4f7f8;
  --muted: #a9b6ba;
  --line: #314047;
  --brand: #64d2ff;
  --brand-2: #9af27d;
  --accent: #f3c969;
  --danger: #ff8b8b;
  --max: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.6;
}

a {
  color: var(--brand);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.shell {
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(16, 20, 22, 0.92);
  backdrop-filter: blur(14px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-weight: 700;
}

.brand img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  justify-content: flex-end;
  font-size: 14px;
}

.language-select {
  min-height: 34px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 34px 0 10px;
  background: var(--panel);
  color: var(--text);
  font: inherit;
}

.hero {
  padding: 76px 0 52px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background:
    radial-gradient(circle at 80% 20%, rgba(100, 210, 255, 0.14), transparent 28%),
    linear-gradient(180deg, rgba(154, 242, 125, 0.08), transparent 60%);
}

.eyebrow {
  color: var(--brand-2);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  max-width: 920px;
  margin: 12px 0 18px;
  font-size: clamp(36px, 7vw, 68px);
  line-height: 1.04;
  letter-spacing: 0;
}

h2 {
  margin: 0 0 16px;
  font-size: 30px;
  line-height: 1.2;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 8px;
  font-size: 20px;
  letter-spacing: 0;
}

p {
  margin: 0 0 16px;
}

.lead {
  max-width: 760px;
  color: var(--muted);
  font-size: 20px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--text);
  font-weight: 650;
}

.button.primary {
  background: var(--brand);
  border-color: var(--brand);
  color: #061014;
}

.section {
  padding: 52px 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

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

.card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px;
  background: var(--panel);
}

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

.media-section {
  background: #0c1113;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.media-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.media-card {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  overflow: hidden;
}

.media-card.wide {
  grid-column: span 1;
}

.media-frame {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 16 / 9;
  background: #070a0b;
}

.media-frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.media-card figcaption {
  min-height: 58px;
  padding: 12px 14px;
  color: var(--muted);
  font-size: 14px;
}

.steps {
  display: grid;
  gap: 14px;
  counter-reset: step;
}

.step {
  position: relative;
  border-left: 3px solid var(--brand);
  padding: 10px 0 10px 18px;
}

.step strong {
  display: block;
  margin-bottom: 4px;
}

pre {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  background: #0b0f11;
  color: #e7f6ff;
}

code {
  font-family: Consolas, "SFMono-Regular", Menlo, monospace;
  font-size: 0.95em;
}

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

.table th,
.table td {
  border-bottom: 1px solid var(--line);
  padding: 12px;
  text-align: left;
  vertical-align: top;
}

.table th {
  background: var(--panel-2);
}

.footer {
  padding: 32px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--muted);
}

.breadcrumbs {
  margin-bottom: 18px;
  color: var(--muted);
  font-size: 14px;
}

.article {
  max-width: 880px;
}

.callout {
  border-left: 4px solid var(--accent);
  background: rgba(243, 201, 105, 0.08);
  padding: 16px 18px;
  border-radius: 8px;
}

.link-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 18px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.link-list a {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
}

@media (max-width: 760px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    padding: 12px 0;
  }

  .links {
    justify-content: flex-start;
  }

  .grid,
  .grid.two,
  .media-grid,
  .link-list {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 44px;
  }
}