:root {
  --ground: #f4f5f0;
  --surface: #ffffff;
  --ink: #1b1f1a;
  --muted: #5b635a;
  --line: #e2e5dc;
  --moss: #3f6b3a;
  --moss-tint: #e6eee2;
  --terminal: #121611;
  --terminal-text: #d6e5cf;
  --terminal-accent: #8fd17f;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ground: #0f120e;
    --surface: #1a1e19;
    --ink: #e8ede4;
    --muted: #9aa596;
    --line: #2a3027;
    --moss: #8fd17f;
    --moss-tint: #22301f;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--moss); }

.wrap { max-width: 760px; margin: 0 auto; padding: 0 20px; }

header.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
  font-size: 18px;
}

.brand img { width: 32px; height: 32px; border-radius: 8px; }

nav a { margin-left: 18px; font-size: 15px; text-decoration: none; color: var(--muted); }
nav a:hover { color: var(--ink); }

.hero { text-align: center; padding: 48px 0 32px; }
.hero img { width: 112px; height: 112px; border-radius: 26px; box-shadow: 0 12px 32px rgba(0, 0, 0, 0.18); }
.hero h1 { font-size: 40px; line-height: 1.2; margin: 24px 0 8px; letter-spacing: -0.5px; }
.hero p { font-size: 19px; color: var(--muted); margin: 0 auto; max-width: 520px; }

.badge {
  display: inline-block;
  margin-top: 28px;
  padding: 12px 24px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--ground);
  font-weight: 600;
  text-decoration: none;
}

.badge.soon { background: var(--moss-tint); color: var(--moss); }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; margin: 24px 0 40px; }

.card { background: var(--surface); border-radius: 16px; padding: 18px; }
.card h3 { margin: 0 0 4px; font-size: 17px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }

.terminal {
  background: var(--terminal);
  color: var(--terminal-text);
  border-radius: 16px;
  padding: 18px;
  font: 13px/1.7 ui-monospace, "SF Mono", Menlo, monospace;
  overflow-x: auto;
  white-space: pre;
}

.terminal .cmd { color: var(--terminal-accent); }

article { background: var(--surface); border-radius: 16px; padding: 8px 24px 24px; margin: 8px 0 32px; }
article h1 { font-size: 28px; margin: 20px 0 4px; }
article h2 { font-size: 19px; margin: 28px 0 6px; }
article .meta { color: var(--muted); font-size: 14px; margin: 0 0 12px; }
article ul { padding-left: 20px; }

.lang-switch { font-size: 14px; color: var(--muted); }

footer { color: var(--muted); font-size: 13px; text-align: center; padding: 24px 0 40px; }
footer a { color: var(--muted); }