:root {
  --bg: #ffffff;
  --bg-soft: #f5f5f7;
  --text: #1d1d1f;
  --text-2: #6e6e73;
  --line: #d2d2d7;
  --accent: #1a7ae6;
  --good: #1e9e47;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --bg-soft: #161617;
    --text: #f5f5f7;
    --text-2: #a1a1a6;
    --line: #424245;
    --accent: #4da3ff;
    --good: #34c759;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.5 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.nav {
  max-width: 980px; margin: 0 auto; padding: 14px 16px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.nav .brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 600; }
.nav .brand img { width: 28px; height: 28px; }
.nav .links { display: flex; gap: 20px; font-size: 14px; }
.nav .links a { color: var(--text-2); }
.nav .links a[aria-current="page"] { color: var(--text); }

main { max-width: 680px; margin: 0 auto; padding: 24px 16px 72px; }

.hero { text-align: center; padding: 48px 0 24px; }
.hero img { width: 128px; height: 128px; }
.hero h1 { font-size: 48px; line-height: 1.08; letter-spacing: -0.02em; margin: 24px 0 12px; }
.hero p.lead { font-size: 21px; color: var(--text-2); margin: 0 auto; max-width: 520px; }
.badge {
  display: inline-block; margin-top: 28px; padding: 12px 22px; border-radius: 980px;
  background: var(--text); color: var(--bg); font-weight: 600; font-size: 15px;
}
.badge.soon { background: var(--bg-soft); color: var(--text-2); }

.features { display: grid; gap: 14px; margin-top: 40px; }
@media (min-width: 640px) { .features { grid-template-columns: 1fr 1fr; } }
.card { background: var(--bg-soft); border-radius: 20px; padding: 22px; }
.card h2 { font-size: 19px; margin: 0 0 6px; }
.card p { margin: 0; color: var(--text-2); font-size: 15px; }

article h1 { font-size: 40px; line-height: 1.1; letter-spacing: -0.015em; margin: 16px 0 4px; }
article .date { color: var(--text-2); font-size: 15px; margin: 0 0 32px; }
article h2 { font-size: 24px; margin: 40px 0 10px; }
article h3 { font-size: 18px; margin: 28px 0 6px; }
article p, article li { color: var(--text); }
article ul { padding-left: 1.2em; }
article li { margin: 6px 0; }

table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 16px 0; }
th, td { text-align: left; vertical-align: top; padding: 10px 12px 10px 0; border-bottom: 1px solid var(--line); }
th { font-weight: 600; }
@media (max-width: 560px) {
  table, thead, tbody, tr, th, td { display: block; width: 100%; }
  thead { display: none; }
  tr { border-bottom: 1px solid var(--line); padding: 10px 0; }
  td { border: 0; padding: 2px 0; }
  td[data-label]::before { content: attr(data-label) " · "; color: var(--text-2); font-weight: 600; }
}

.contact { background: var(--bg-soft); border-radius: 20px; padding: 22px; margin-top: 28px; }
.contact p { margin: 4px 0; }

footer {
  max-width: 980px; margin: 0 auto; padding: 24px 16px 40px; border-top: 1px solid var(--line);
  color: var(--text-2); font-size: 13px; display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: space-between;
}
footer a { color: var(--text-2); }