:root {
  --ink: #1a1a1a;
  --muted: #5c5c5c;
  --line: #e6e6e6;
  --red: #c0392b;
  --bg: #fafafa;
  --card: #fff;
  --head: #1c1c1c;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Manrope, "Segoe UI", sans-serif;
  color: var(--ink);
  background: #fff;
  line-height: 1.55;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
.wrap { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
header {
  background: var(--head);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 20;
}
.bar {
  display: flex;
  align-items: center;
  gap: 22px;
  min-height: 72px;
}
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.logo img { height: 36px; width: auto; background: #fff; border-radius: 4px; padding: 3px 6px; }
.logo span { font-weight: 700; letter-spacing: .04em; font-size: 14px; }
nav { display: flex; gap: 18px; margin-left: auto; }
nav a { color: #fff; text-decoration: none; font-size: 15px; opacity: .92; }
nav a.active, nav a:hover { opacity: 1; text-decoration: underline; text-underline-offset: 6px; }
.phone { color: #fff; text-decoration: none; font-weight: 700; white-space: nowrap; }
.burger { display: none; background: none; border: 0; color: #fff; font-size: 22px; }
.hero { padding: 56px 0 28px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 36px; align-items: center; }
h1 { font-size: clamp(34px, 4.4vw, 52px); line-height: 1.05; margin: 0 0 16px; letter-spacing: -.03em; }
.lead { color: var(--muted); font-size: 18px; margin: 0 0 22px; }
.btns { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  background: #1c1c1c; color: #fff; text-decoration: none;
  border-radius: 8px; padding: 14px 18px; font-weight: 700; border: 1px solid #1c1c1c;
}
.btn.ghost { background: #fff; color: #1c1c1c; }
.btn.red { background: var(--red); border-color: var(--red); }
.meta { margin-top: 22px; color: #777; font-size: 14px; border-left: 2px solid #ddd; padding-left: 12px; }
.sheet { background: #fff; border-radius: 8px; box-shadow: 0 18px 40px rgba(0,0,0,.08); }
section { padding: 28px 0; }
h2 { font-size: 28px; margin: 0 0 12px; letter-spacing: -.02em; }
h3 { font-size: 20px; margin: 22px 0 8px; }
p { margin: 0 0 12px; }
.grid3, .grid2 { display: grid; gap: 14px; }
.grid3 { grid-template-columns: repeat(3, 1fr); }
.grid2 { grid-template-columns: 1fr 1fr; }
.card { border: 1px solid var(--line); border-radius: 12px; padding: 16px 16px 14px; background: #fff; text-decoration: none; display: block; }
.card:hover { border-color: #bbb; }
.card b { display: block; margin-bottom: 6px; }
.card span { color: var(--muted); font-size: 14px; }
.chess { display: grid; grid-template-columns: 1.4fr .8fr; gap: 22px; align-items: start; margin: 18px 0; }
.chess.rev { grid-template-columns: .8fr 1.4fr; }
.chess img { border-radius: 10px; width: 100%; object-fit: cover; max-height: 320px; }
ul.clean { margin: 0 0 14px; padding-left: 18px; }
ul.clean li { margin: 6px 0; }
table { width: 100%; border-collapse: collapse; margin: 12px 0 18px; font-size: 15px; }
th, td { border-bottom: 1px solid var(--line); text-align: left; padding: 10px 8px; vertical-align: top; }
th { font-size: 13px; color: #666; font-weight: 700; }
.note { background: #f7f7f7; border-radius: 10px; padding: 14px 16px; }
.crumbs { font-size: 13px; color: #777; margin: 18px 0 8px; }
.crumbs a { color: #444; }
.faq details { border-bottom: 1px solid var(--line); padding: 10px 0; }
.faq summary { cursor: pointer; font-weight: 700; }
.form {
  display: grid; gap: 10px; background: #f6f6f6; border-radius: 12px; padding: 16px;
}
.form input, .form textarea, .form select {
  width: 100%; border: 1px solid #ddd; border-radius: 8px; padding: 12px; font: inherit; background: #fff;
}
.consent { font-size: 13px; color: #444; display: flex; gap: 8px; align-items: flex-start; }
.consent input { margin-top: 3px; }
.ok, .err { padding: 10px 12px; border-radius: 8px; margin-bottom: 10px; }
.ok { background: #e9f7ee; }
.err { background: #fdecea; }
footer { background: #1c1c1c; color: #ddd; padding: 32px 0 18px; margin-top: 28px; font-size: 14px; }
footer a { color: #fff; text-decoration: none; }
.fgrid { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 18px; }
footer .muted { color: #aaa; }
.req { margin-top: 16px; color: #999; font-size: 12px; }
@media (max-width: 860px) {
  nav { display: none; }
  nav.open { display: flex; flex-direction: column; position: absolute; top: 72px; left: 0; right: 0; background: #1c1c1c; padding: 12px 16px 16px; }
  .burger { display: block; margin-left: auto; }
  .phone { display: none; }
  .hero-grid, .grid3, .grid2, .chess, .chess.rev, .fgrid { grid-template-columns: 1fr; }
  .hero { padding-top: 28px; }
}