:root {
  --bg: #0b0f14; --bg2: #11161d; --card: #151c26; --line: #232d3a;
  --txt: #e6edf3; --dim: #8b98a5; --acc: #2dd4bf; --acc2: #38bdf8;
  --ok: #34d399; --warn: #fbbf24; --mono: ui-monospace, "Cascadia Code", "SF Mono", Consolas, monospace;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { background: var(--bg); color: var(--txt); font: 16px/1.6 -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--acc2); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 960px; margin: 0 auto; padding: 0 20px; }
header { border-bottom: 1px solid var(--line); background: var(--bg2); position: sticky; top: 0; z-index: 10; }
.nav { display: flex; align-items: center; justify-content: space-between; padding: 14px 20px; max-width: 960px; margin: 0 auto; }
.logo { font-weight: 700; font-size: 1.05rem; }
.logo span { color: var(--acc); }
.nav a + a { margin-left: 16px; }
.hero { padding: 72px 0 56px; text-align: center; }
.hero h1 { font-size: 2.6rem; line-height: 1.15; letter-spacing: -0.5px; }
.hero h1 .grad { background: linear-gradient(90deg, var(--acc), var(--acc2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p { color: var(--dim); max-width: 620px; margin: 16px auto 28px; font-size: 1.1rem; }
.btn { display: inline-block; background: var(--acc); color: #06251f; font-weight: 700; padding: 12px 22px; border-radius: 8px; margin: 4px; }
.btn.ghost { background: transparent; color: var(--txt); border: 1px solid var(--line); }
.btn.ghost:hover { border-color: var(--acc); text-decoration: none; }
.badges { margin-top: 18px; color: var(--dim); font-size: 0.85rem; }
.badges span { background: var(--card); border: 1px solid var(--line); padding: 4px 10px; border-radius: 999px; margin: 0 4px; }
section { padding: 48px 0; border-top: 1px solid var(--line); }
h2 { font-size: 1.5rem; margin-bottom: 8px; }
.sub { color: var(--dim); margin-bottom: 24px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 20px; }
.card h3 { font-size: 1.05rem; margin-bottom: 8px; }
.card p { color: var(--dim); font-size: 0.92rem; }
.card .ico { font-size: 1.5rem; }
.steps { counter-reset: step; display: grid; gap: 12px; }
.step { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 18px 20px; display: flex; gap: 16px; align-items: flex-start; }
.step::before { counter-increment: step; content: counter(step); flex: 0 0 32px; height: 32px; border-radius: 50%; background: var(--acc); color: #06251f; font-weight: 700; display: flex; align-items: center; justify-content: center; }
.step b { display: block; margin-bottom: 4px; }
.step span { color: var(--dim); font-size: 0.92rem; }
.tabs { display: flex; gap: 6px; margin-bottom: 14px; flex-wrap: wrap; }
.tab { background: var(--bg2); border: 1px solid var(--line); color: var(--dim); padding: 8px 16px; border-radius: 8px; cursor: pointer; font-size: 0.9rem; }
.tab.active { background: var(--card); color: var(--txt); border-color: var(--acc); }
.pane { display: none; }
.pane.active { display: block; }
pre { background: #0a0e13; border: 1px solid var(--line); border-radius: 10px; padding: 16px 18px; overflow-x: auto; font-family: var(--mono); font-size: 0.85rem; position: relative; }
pre .copy { position: absolute; top: 10px; right: 10px; background: var(--card); border: 1px solid var(--line); color: var(--dim); font: 600 0.75rem sans-serif; padding: 4px 10px; border-radius: 6px; cursor: pointer; }
pre .copy:hover { color: var(--txt); border-color: var(--acc); }
table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--dim); font-weight: 600; }
td code { background: var(--card); border: 1px solid var(--line); padding: 1px 6px; border-radius: 5px; font-family: var(--mono); font-size: 0.82rem; color: var(--acc2); }
.notes li { color: var(--dim); font-size: 0.92rem; margin: 8px 0 8px 20px; }
footer { border-top: 1px solid var(--line); padding: 28px 0; text-align: center; color: var(--dim); font-size: 0.85rem; }
@media (max-width: 640px) { .hero h1 { font-size: 1.9rem; } .hero { padding: 48px 0 40px; } }