:root {
  --bg: #0f1114;
  --panel: #171a1f;
  --line: #262b33;
  --text: #e6e3dc;
  --muted: #9a9890;
  --accent: #c8102e;
  --accent-soft: #3a1219;
  --ok: #4f9d69;
  --warn: #d8a13a;
  --radius: 10px;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

a { color: #f0566c; }
a:hover { color: #ff7a8c; }

.wrap { max-width: 760px; margin: 0 auto; padding: 0 16px; }

header.site {
  border-bottom: 1px solid var(--line);
  background: #0b0c0e;
}
header.site .wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; flex-wrap: wrap; padding-top: 14px; padding-bottom: 14px;
}
.brand { font-weight: 700; letter-spacing: .04em; color: var(--text); text-decoration: none; }
.brand span { color: var(--accent); }
nav a { color: var(--muted); text-decoration: none; margin-left: 18px; }
nav a:first-child { margin-left: 0; }
nav a:hover, nav a[aria-current] { color: var(--text); }

.hero { padding: 56px 0 32px; }
.hero h1 { font-size: clamp(30px, 6vw, 44px); line-height: 1.15; margin: 0 0 14px; }
.hero p { color: var(--muted); font-size: 19px; margin: 0; }

main { padding-bottom: 64px; }
h2 { font-size: 24px; margin: 48px 0 12px; }
h3 { font-size: 18px; margin: 28px 0 8px; }

.card {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 20px 22px; margin: 16px 0;
}

.notice {
  border-left: 4px solid var(--warn); background: #241d10;
  padding: 14px 18px; border-radius: 0 var(--radius) var(--radius) 0; margin: 20px 0;
}
.notice.danger { border-color: var(--accent); background: var(--accent-soft); }
.notice.ok { border-color: var(--ok); background: #13231a; }
.notice p { margin: 0; }
.notice p + p { margin-top: 8px; }

.button {
  display: inline-block; background: var(--accent); color: #fff; text-decoration: none;
  padding: 12px 22px; border-radius: 8px; font-weight: 600; margin: 6px 8px 6px 0;
}
.button:hover { background: #e01535; color: #fff; }
.button.secondary { background: transparent; border: 1px solid var(--line); color: var(--text); }

ol.steps { counter-reset: step; list-style: none; padding: 0; margin: 16px 0; }
ol.steps > li {
  counter-increment: step; position: relative; padding: 0 0 22px 48px;
}
ol.steps > li::before {
  content: counter(step); position: absolute; left: 0; top: 0;
  width: 32px; height: 32px; border-radius: 50%; background: var(--accent-soft);
  border: 1px solid var(--accent); color: var(--text);
  display: grid; place-items: center; font-weight: 700; font-size: 15px;
}
ol.steps > li strong:first-child { display: block; }

code {
  font: 15px/1.4 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  background: #0b0c0e; border: 1px solid var(--line); padding: 1px 6px; border-radius: 5px;
  overflow-wrap: anywhere;
}

ul.features { padding-left: 20px; }
ul.features li { margin: 6px 0; }

details { border-bottom: 1px solid var(--line); padding: 12px 0; }
summary { cursor: pointer; font-weight: 600; }
details p { color: var(--muted); margin: 10px 0 0; }

footer.site {
  border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; padding: 28px 0 40px;
}
footer.site p { margin: 6px 0; }