:root {
  --bg: #f5f3ee; --card: #fff; --ink: #2b2b2b; --muted: #8a8578;
  --accent: #7a5c3e; --accent2: #a3552e; --line: #e4e0d6;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.65 -apple-system, "Helvetica Neue", Segoe UI, sans-serif; }
a { color: var(--accent2); }
.wrap { max-width: 980px; margin: 0 auto; padding: 0 22px; }
nav { display: flex; align-items: center; gap: 22px; padding: 16px 0;
  flex-wrap: wrap; }
.logo { font-size: 22px; font-weight: 800; color: var(--ink);
  text-decoration: none; letter-spacing: -.02em; }
.logo span { color: var(--accent2); }
nav a.nav-link { color: var(--ink); text-decoration: none; font-size: 15px; }
nav a.nav-link:hover { color: var(--accent2); }
.btn { display: inline-block; background: var(--accent); color: #fff;
  padding: 12px 26px; border-radius: 10px; text-decoration: none;
  font-weight: 700; }
.btn:hover { background: #64492f; }
.btn-big { font-size: 19px; padding: 16px 36px; }
.hero { text-align: center; padding: 60px 0 46px; }
.hero h1 { font-size: clamp(30px, 5vw, 46px); line-height: 1.15;
  margin: 0 0 16px; letter-spacing: -.02em; }
.hero p.lead { font-size: 19px; color: #55503f; max-width: 640px;
  margin: 0 auto 30px; }
.hero .free { display: block; margin-top: 12px; color: var(--muted);
  font-size: 14px; }
.grid3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px; margin: 30px 0; }
.card { background: var(--card); border: 1px solid var(--line);
  border-radius: 14px; padding: 22px; }
.card h3 { margin: 0 0 8px; font-size: 17px; }
.card p { margin: 0; color: #55503f; font-size: 15px; }
section { padding: 34px 0; }
section h2 { font-size: 28px; margin: 0 0 18px; letter-spacing: -.01em; }
.steps { counter-reset: step; }
.steps .card { position: relative; padding-left: 64px; }
.steps .card::before { counter-increment: step; content: counter(step);
  position: absolute; left: 18px; top: 20px; width: 32px; height: 32px;
  border-radius: 50%; background: var(--accent); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; }
details { background: var(--card); border: 1px solid var(--line);
  border-radius: 10px; padding: 14px 18px; margin-bottom: 10px; }
details summary { cursor: pointer; font-weight: 600; }
details p { color: #55503f; }
.ad-slot { min-height: 120px; border: 1px dashed var(--line);
  border-radius: 10px; display: flex; align-items: center;
  justify-content: center; color: var(--muted); font-size: 12px;
  margin: 26px 0; }
footer { border-top: 1px solid var(--line); margin-top: 40px;
  padding: 26px 0 40px; color: var(--muted); font-size: 14px; }
footer a { color: var(--muted); }
article { max-width: 760px; margin: 0 auto; }
article h1 { font-size: clamp(26px, 4vw, 38px); line-height: 1.2; }
article h2 { font-size: 24px; margin-top: 36px; }
article h3 { font-size: 18px; margin-top: 26px; }
article table { border-collapse: collapse; width: 100%; margin: 14px 0;
  font-size: 15px; }
article th, article td { border: 1px solid var(--line); padding: 8px 12px;
  text-align: left; }
article th { background: #efece4; }
.callout { background: #f2ede2; border-left: 4px solid var(--accent);
  padding: 14px 18px; border-radius: 0 10px 10px 0; margin: 18px 0; }
input.calc, select.calc { padding: 10px 12px; border: 1px solid var(--line);
  border-radius: 8px; font-size: 16px; width: 100%; }
label.calc { display: block; font-size: 13px; color: var(--muted);
  margin: 12px 0 4px; }
.result { background: var(--card); border: 2px solid var(--accent);
  border-radius: 12px; padding: 18px 22px; margin-top: 20px;
  font-size: 17px; }
.result strong { font-size: 26px; color: var(--accent2); }