:root {
  --lg-bg: #f8fbfa;
  --lg-surface: #ffffff;
  --lg-surface-2: #eef5f3;
  --lg-ink: #14211f;
  --lg-ink-soft: #4a5c59;
  --lg-line: #d6e3df;
  --lg-aqua: #0891b2;
  --lg-lime: #65a30d;
  --lg-lime-bright: #a3e635;
  --lg-grad: linear-gradient(90deg, #0891b2 0%, #14b8a6 45%, #84cc16 100%);
  --lg-grad-soft: linear-gradient(90deg, rgba(8,145,178,.12), rgba(132,204,22,.14));
  --lg-code-bg: #11201e;
  --lg-code-ink: #d7ece6;
  --lg-code-key: #67e8f9;
  --lg-code-str: #bef264;
  --lg-code-dim: #7c948f;
  --lg-link: #0e7490;
  --lg-ok: #4d7c0f;
  --lg-shadow: 0 1px 2px rgba(20,33,31,.06), 0 8px 24px -12px rgba(8,145,178,.25);
  --lg-radius: 14px;
  --lg-mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --lg-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --lg-bg: #0d1513;
    --lg-surface: #142220;
    --lg-surface-2: #182a27;
    --lg-ink: #e6f2ef;
    --lg-ink-soft: #9db4af;
    --lg-line: #254039;
    --lg-aqua: #22d3ee;
    --lg-lime: #a3e635;
    --lg-grad: linear-gradient(90deg, #06b6d4 0%, #2dd4bf 45%, #a3e635 100%);
    --lg-grad-soft: linear-gradient(90deg, rgba(34,211,238,.14), rgba(163,230,53,.14));
    --lg-code-bg: #0a1311;
    --lg-code-ink: #d7ece6;
    --lg-link: #5eead4;
    --lg-ok: #a3e635;
    --lg-shadow: 0 1px 2px rgba(0,0,0,.4), 0 10px 28px -14px rgba(0,0,0,.7);
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--lg-bg);
  color: var(--lg-ink);
  font-family: var(--lg-sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; }
a { color: var(--lg-link); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
code {
  font-family: var(--lg-mono);
  font-size: .88em;
  background: var(--lg-surface-2);
  border: 1px solid var(--lg-line);
  border-radius: 6px;
  padding: .1em .4em;
  overflow-wrap: anywhere;
}
h1, h2, h3 { line-height: 1.2; letter-spacing: -.02em; margin: 0; }

.lg-wrap { width: 100%; max-width: 1080px; margin: 0 auto; padding: 0 16px; }

/* header */
.lg-head {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--lg-bg) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  -webkit-backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--lg-line);
}
.lg-head .lg-wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 60px; flex-wrap: wrap; }
.lg-brand { display: inline-flex; align-items: center; gap: 9px; font-weight: 700; font-size: 1.2rem; letter-spacing: -.02em; color: var(--lg-ink); text-decoration: none; }
.lg-brand img { width: 28px; height: 28px; display: block; }
.lg-brand b { background: var(--lg-grad); -webkit-background-clip: text; background-clip: text; color: transparent; font-weight: 800; }
.lg-nav { display: flex; gap: 4px; flex-wrap: wrap; }
.lg-nav a { color: var(--lg-ink-soft); text-decoration: none; font-size: .95rem; font-weight: 500; padding: 6px 12px; border-radius: 999px; }
.lg-nav a:hover { color: var(--lg-ink); background: var(--lg-surface-2); }
.lg-nav a[aria-current="page"] { color: var(--lg-ink); background: var(--lg-grad-soft); box-shadow: inset 0 0 0 1px var(--lg-line); }

/* hero */
.lg-hero { padding: 64px 0 40px; }
.lg-eyebrow { display: inline-block; font-family: var(--lg-mono); font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; color: var(--lg-ink-soft); padding: 5px 12px; border: 1px solid var(--lg-line); border-radius: 999px; background: var(--lg-surface); }
.lg-eyebrow::before { content: ""; display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--lg-grad); margin-right: 8px; }
.lg-hero h1 { font-size: clamp(2.1rem, 6vw, 3.8rem); margin: 20px 0 16px; max-width: 18ch; font-weight: 800; }
.lg-grad-text { background: var(--lg-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lg-hero p.lg-lede { font-size: 1.15rem; color: var(--lg-ink-soft); max-width: 60ch; margin: 0; }
.lg-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.lg-btn { display: inline-block; font-weight: 600; text-decoration: none; padding: 12px 22px; border-radius: 10px; font-size: .98rem; border: 1px solid transparent; }
.lg-btn-main { background: var(--lg-grad); color: #06231f; box-shadow: 0 6px 18px -8px rgba(8,145,178,.6); }
.lg-btn-main:hover { filter: brightness(1.06); }
.lg-btn-ghost { color: var(--lg-ink); border-color: var(--lg-line); background: var(--lg-surface); }
.lg-btn-ghost:hover { border-color: var(--lg-aqua); }

/* timeline / stepper */
.lg-steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; position: relative; counter-reset: lgstep; }
.lg-steps.lg-steps-4 { grid-template-columns: repeat(4, 1fr); gap: 18px; }
.lg-steps::before {
  content: ""; position: absolute; left: 22px; right: 22px; top: 21px; height: 3px;
  background: var(--lg-grad); border-radius: 3px; opacity: .9;
}
.lg-step { position: relative; padding-top: 0; }
.lg-node {
  position: relative; z-index: 1;
  width: 44px; height: 44px; border-radius: 50%;
  display: grid; place-items: center;
  font-family: var(--lg-mono); font-weight: 700; font-size: .95rem;
  background: var(--lg-surface); color: var(--lg-ink);
  border: 3px solid var(--lg-aqua);
  box-shadow: 0 0 0 5px var(--lg-bg);
}
.lg-step:nth-child(2) .lg-node { border-color: #14b8a6; }
.lg-step:nth-child(3) .lg-node { border-color: #65a30d; }
.lg-step:nth-child(4) .lg-node { border-color: var(--lg-lime-bright); }
.lg-step-body { margin-top: 18px; background: var(--lg-surface); border: 1px solid var(--lg-line); border-radius: var(--lg-radius); padding: 20px 20px 22px; box-shadow: var(--lg-shadow); height: calc(100% - 62px); }
.lg-step h3 { font-size: 1.1rem; margin-bottom: 8px; }
.lg-step p { margin: 0; color: var(--lg-ink-soft); font-size: .96rem; }
.lg-step-tag { display: block; font-family: var(--lg-mono); font-size: .74rem; letter-spacing: .06em; text-transform: uppercase; color: var(--lg-lime); margin-bottom: 6px; }
@media (prefers-color-scheme: light) { .lg-step-tag { color: var(--lg-ok); } }

/* sections */
.lg-sec { padding: 52px 0; }
.lg-sec-alt { background: var(--lg-surface-2); border-top: 1px solid var(--lg-line); border-bottom: 1px solid var(--lg-line); }
.lg-sec h2 { font-size: clamp(1.6rem, 4vw, 2.2rem); font-weight: 800; }
.lg-sub { color: var(--lg-ink-soft); margin: 10px 0 32px; max-width: 62ch; }

/* feature timeline (vertical-in-horizontal list of milestones) */
.lg-feats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.lg-feat { background: var(--lg-surface); border: 1px solid var(--lg-line); border-top: 3px solid var(--lg-aqua); border-radius: var(--lg-radius); padding: 20px; }
.lg-feat:nth-child(2), .lg-feat:nth-child(5) { border-top-color: #14b8a6; }
.lg-feat:nth-child(3), .lg-feat:nth-child(6) { border-top-color: var(--lg-lime); }
.lg-feat h3 { font-size: 1.05rem; margin-bottom: 6px; }
.lg-feat p { margin: 0; color: var(--lg-ink-soft); font-size: .95rem; }

/* stats band */
.lg-band { background: var(--lg-grad); color: #04201c; }
.lg-band-in { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.lg-stat { padding: 30px 18px; border-left: 1px solid rgba(4,32,28,.2); }
.lg-stat:first-child { border-left: 0; }
.lg-stat b { display: block; font-size: clamp(1.7rem, 4vw, 2.5rem); font-weight: 800; letter-spacing: -.03em; line-height: 1.1; }
.lg-stat span { font-size: .9rem; font-weight: 500; opacity: .85; }

/* code */
.lg-code {
  background: var(--lg-code-bg); color: var(--lg-code-ink);
  font-family: var(--lg-mono); font-size: .86rem; line-height: 1.7;
  padding: 18px 20px; border-radius: 12px; overflow-x: auto; margin: 14px 0;
  border: 1px solid var(--lg-line);
  white-space: pre;
}
.lg-code .lg-k { color: var(--lg-code-key); }
.lg-code .lg-s { color: var(--lg-code-str); }
.lg-code .lg-c { color: var(--lg-code-dim); }

/* pages */
.lg-page { padding: 48px 16px 64px; max-width: 880px; }
.lg-page h1 { font-size: clamp(2rem, 5vw, 2.8rem); font-weight: 800; }
.lg-page h2 { font-size: 1.4rem; margin: 40px 0 10px; }
.lg-page p { color: var(--lg-ink-soft); }
.lg-lead { font-size: 1.12rem; margin: 12px 0 34px; max-width: 62ch; }
.lg-page .lg-steps { margin: 8px 0 20px; }
.lg-note { border-left: 4px solid; border-image: var(--lg-grad) 1; background: var(--lg-surface); border-top: 1px solid var(--lg-line); border-right: 1px solid var(--lg-line); border-bottom: 1px solid var(--lg-line); padding: 14px 18px; margin: 20px 0; color: var(--lg-ink-soft); font-size: .96rem; }
.lg-scroll { overflow-x: auto; margin: 18px 0; border: 1px solid var(--lg-line); border-radius: 12px; background: var(--lg-surface); }
.lg-table { width: 100%; border-collapse: collapse; font-size: .92rem; min-width: 520px; }
.lg-table th { text-align: left; font-family: var(--lg-mono); font-size: .74rem; letter-spacing: .06em; text-transform: uppercase; color: var(--lg-ink-soft); background: var(--lg-surface-2); padding: 11px 14px; border-bottom: 1px solid var(--lg-line); }
.lg-table td { padding: 11px 14px; border-bottom: 1px solid var(--lg-line); }
.lg-table tr:last-child td { border-bottom: 0; }
.lg-table td:first-child { font-family: var(--lg-mono); font-size: .88rem; }
.lg-up { color: var(--lg-ok); font-weight: 600; }
.lg-up::before { content: ""; display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--lg-lime-bright); margin-right: 7px; box-shadow: 0 0 0 3px rgba(132,204,22,.22); }
.lg-bar { display: inline-block; height: 6px; border-radius: 3px; background: var(--lg-grad); vertical-align: middle; margin-right: 8px; }

/* 404 */
.lg-lost { text-align: center; padding: 96px 16px 110px; }
.lg-lost b { display: block; font-size: clamp(4.5rem, 20vw, 9rem); font-weight: 800; line-height: 1; letter-spacing: -.05em; background: var(--lg-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lg-lost p { max-width: 46ch; margin: 18px auto 28px; color: var(--lg-ink-soft); }

/* footer */
.lg-foot { border-top: 1px solid var(--lg-line); padding: 26px 0; color: var(--lg-ink-soft); font-size: .9rem; }
.lg-foot .lg-wrap { display: flex; justify-content: space-between; gap: 12px 24px; flex-wrap: wrap; }
.lg-foot nav { display: flex; gap: 18px; flex-wrap: wrap; }
.lg-foot a { color: var(--lg-ink-soft); }

/* responsive */
@media (max-width: 860px) {
  .lg-steps.lg-steps-4 { grid-template-columns: repeat(2, 1fr); }
  .lg-steps.lg-steps-4::before { display: none; }
  .lg-feats { grid-template-columns: repeat(2, 1fr); }
  .lg-band-in { grid-template-columns: repeat(2, 1fr); }
  .lg-stat:nth-child(3) { border-left: 0; }
  .lg-stat:nth-child(n+3) { border-top: 1px solid rgba(4,32,28,.2); }
}
@media (max-width: 640px) {
  .lg-hero { padding: 40px 0 28px; }
  .lg-sec { padding: 38px 0; }
  .lg-steps, .lg-steps.lg-steps-4 { grid-template-columns: 1fr; gap: 0; }
  .lg-steps::before { display: block; left: 21px; right: auto; top: 22px; bottom: 22px; width: 3px; height: auto; background: linear-gradient(180deg, #0891b2, #14b8a6 50%, #84cc16); }
  .lg-steps.lg-steps-4::before { display: block; }
  .lg-step { display: grid; grid-template-columns: 44px 1fr; gap: 16px; padding-bottom: 18px; }
  .lg-step-body { margin-top: 0; height: auto; }
  .lg-feats { grid-template-columns: 1fr; }
  .lg-nav a { padding: 5px 9px; font-size: .9rem; }
}