:root {
  --bg: #eef3f7;
  --ink: #15202b;
  --muted: #4a5b6b;
  --card: #ffffff;
  --line: #c9d6e2;
  --accent: #245b8c;
  --soft: #d9e7f4;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "IBM Plex Sans", sans-serif;
  color: var(--ink);
  background:
    linear-gradient(180deg, #f7fafc 0%, var(--bg) 45%, #e7eef5 100%);
  line-height: 1.55;
}
a { color: inherit; text-decoration: none; }
.wrap { width: min(1000px, calc(100% - 2rem)); margin: 0 auto; }

.top {
  border-bottom: 1px solid var(--line);
  background: rgba(247, 250, 252, 0.92);
  position: sticky;
  top: 0;
  backdrop-filter: blur(8px);
  z-index: 5;
}
.bar {
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  font-family: Fraunces, serif;
  font-weight: 700;
  font-size: 1.4rem;
}
nav { display: flex; gap: 1rem; color: var(--muted); }
nav a:hover { color: var(--accent); }

.hero { padding: 4.2rem 0 2rem; }
.eyebrow {
  margin: 0 0 0.8rem;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  font-size: 0.78rem;
}
h1, h2, h3 { font-family: Fraunces, serif; margin: 0 0 0.7rem; line-height: 1.15; }
h1 { font-size: clamp(2rem, 4vw, 3.1rem); max-width: 16ch; }
.lead { max-width: 58ch; color: var(--muted); font-size: 1.08rem; margin: 0; }
.offer {
  margin: 1.1rem 0 0;
  max-width: 60ch;
  padding: 0.9rem 1rem;
  border-left: 3px solid var(--accent);
  background: rgba(36, 91, 140, 0.08);
  color: var(--ink);
  font-size: 0.98rem;
}
.block { padding: 2rem 0; }
.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1rem;
}
.grid > div {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.1rem 1.2rem;
}
.grid p { margin: 0; color: var(--muted); }

.steps {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1.2rem 1.2rem 1.2rem 2.2rem;
}
.steps li { margin: 0.65rem 0; color: var(--muted); }
.steps strong { color: var(--ink); }

.panel {
  background: var(--soft);
  border-radius: 22px;
  padding: 1.6rem 1.8rem;
  margin: 1rem auto 2rem;
}
.panel ul { margin: 0; padding-left: 1.1rem; color: var(--muted); }
.panel li { margin: 0.4rem 0; }

details {
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 12px;
  padding: 0.85rem 1rem;
  margin: 0.65rem 0;
}
summary { font-weight: 700; cursor: pointer; }
details p { margin: 0.65rem 0 0; color: var(--muted); }

.foot {
  border-top: 1px solid var(--line);
  padding: 2rem 0;
  background: #e4ecf4;
}
.fine { color: var(--muted); font-size: 0.9rem; }

@media (max-width: 720px) {
  .grid { grid-template-columns: 1fr; }
  nav { display: none; }
}