:root {
  --ink: #111114;
  --ink-soft: #55565c;
  --paper: #ffffff;
  --mist: #f3f3f5;
  --line: #e3e3e8;
  --accent: #111114;
  --radius: 22px;
  font-family: "Poppins", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--paper);
}
* { box-sizing: border-box; }
body { margin: 0; line-height: 1.6; background: var(--paper); }
img { max-width: 100%; height: auto; }
a { color: var(--ink); }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

header.site { border-bottom: 1px solid var(--line); background: rgba(255,255,255,.92); position: sticky; top: 0; backdrop-filter: blur(8px); z-index: 5; }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 12px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; text-decoration: none; font-size: 1.05rem; }
.brand img { border-radius: 9px; box-shadow: 0 1px 4px rgba(0,0,0,.15); }
nav a { margin-left: 18px; text-decoration: none; color: var(--ink-soft); font-weight: 500; }
nav a:hover { color: var(--ink); }

.hero { padding: 72px 0 56px; background:
  radial-gradient(circle at 92% 8%, #111114 0 110px, transparent 111px),
  radial-gradient(circle at 4% 100%, #111114 0 90px, transparent 91px), var(--paper); overflow: hidden; }
.hero .wrap { display: grid; grid-template-columns: 1fr 1.3fr; gap: 48px; align-items: center; }
.hero-logo { width: 100%; max-width: 340px; justify-self: center; border-radius: 26%; box-shadow: 0 24px 60px rgba(0,0,0,.18); }
h1 { font-size: clamp(2.3rem, 6vw, 4rem); line-height: 1.05; margin: 0 0 14px; letter-spacing: -0.02em; }
.pill { display: inline-block; background: var(--ink); color: #fff; border-radius: 999px; padding: 4px 22px 6px; }
.lead { font-size: 1.2rem; color: var(--ink-soft); margin: 0 0 28px; }
.btn { display: inline-flex; align-items: center; gap: 8px; background: var(--ink); color: #fff; text-decoration: none; padding: 14px 26px; border-radius: 999px; font-weight: 600; }
.btn.ghost { background: transparent; color: var(--ink); border: 2px solid var(--ink); margin-left: 8px; }

section { padding: 56px 0; }
section.alt { background: var(--mist); }
h2 { font-size: 1.8rem; margin: 0 0 8px; }
.sub { color: var(--ink-soft); margin: 0 0 32px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px; }
.card { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.card .ico { width: 48px; height: 48px; border-radius: 14px; background: var(--ink); color: #fff; display: grid; place-items: center; font-size: 1.4rem; margin-bottom: 12px; }
.card h3 { margin: 0 0 6px; font-size: 1.1rem; }
.card p { margin: 0; color: var(--ink-soft); }

.prose { max-width: 760px; padding-top: 40px; padding-bottom: 56px; }
.prose h1 { font-size: 2.2rem; }
.prose h2 { font-size: 1.3rem; margin-top: 32px; }
.meta { color: var(--ink-soft); font-size: .95rem; }
.placeholder { background: #fff3b0; padding: 0 4px; border-radius: 4px; }

footer { border-top: 1px solid var(--line); padding: 28px 0; color: var(--ink-soft); font-size: .92rem; }
footer .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }

@media (max-width: 760px) {
  .hero { padding-top: 40px; }
  .hero .wrap { grid-template-columns: 1fr; text-align: center; gap: 28px; }
  .hero-logo { max-width: 200px; }
  nav a { margin-left: 12px; }
  .btn.ghost { margin: 10px 0 0; }
}