:root {
  --bg: #f4f6fb;
  --card: #fff;
  --ink: #121826;
  --mute: #5c6678;
  --line: #e4e8f0;
  --blue: #2563eb;
  --blue-ink: #1d4ed8;
  --blue-soft: #eef3ff;
  --ok: #0f7b4c;
  --warn: #9a6400;
  --danger: #c0392b;
  --shadow: 0 12px 40px rgba(18, 24, 38, .06);
  --radius: 20px;
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
html { scroll-behavior: smooth; }
body {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }

.nav, footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 16px 24px;
}
.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  max-width: none;
  padding-left: max(24px, calc((100% - 1180px) / 2 + 24px));
  padding-right: max(24px, calc((100% - 1180px) / 2 + 24px));
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 750; }
.brand img { width: 40px; height: 40px; border-radius: 12px; object-fit: cover; background: #fff; }
.nav nav { display: flex; gap: 20px; color: var(--mute); font-size: 14px; }
.nav nav a:hover { color: var(--ink); }
.nav-acts { display: flex; gap: 8px; align-items: center; }

.btn, .btn-line, .ghost, button.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 12px;
  padding: 11px 16px;
  font: inherit;
  font-weight: 650;
  cursor: pointer;
}
.btn { background: var(--blue); color: #fff; }
.btn:hover { background: var(--blue-ink); }
.btn-line { background: var(--blue-soft); color: var(--blue-ink); }
.ghost { background: #fff; color: var(--ink); border: 1px solid var(--line); }

.hero-wrap { padding: 18px 24px 8px; }
.hero {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 28px;
  padding: 42px 40px;
  background: linear-gradient(180deg, #fff, #f7f9ff);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
}
.eyebrow {
  margin: 0 0 10px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--blue);
  font-size: 12px;
  font-weight: 700;
}
.hero h1, .section h2 {
  margin: 0 0 14px;
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.05;
  letter-spacing: -.03em;
}
.lead { color: var(--mute); line-height: 1.6; max-width: 640px; margin: 0 0 22px; }
.cta { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 22px; }
.hero-badges {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}
.hero-badges div, .hero-card, .grid3 article, .grid2 article, .form-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
}
.hero-badges div { padding: 12px 14px; }
.hero-badges b { display: block; }
.hero-badges span { color: var(--mute); font-size: 13px; }
.hero-card { padding: 22px; box-shadow: var(--shadow); }
.hero-card img { width: 72px; height: 72px; border-radius: 18px; object-fit: cover; }
.hero-card h3 { margin: 12px 0; }
.hero-card ol { margin: 0 0 18px; padding-left: 18px; color: var(--mute); line-height: 1.7; }
.hero-card .btn { width: 100%; }

.section { max-width: 1180px; margin: 0 auto; padding: 56px 24px; }
.section.tint {
  max-width: none;
  padding-left: max(24px, calc((100% - 1180px) / 2 + 24px));
  padding-right: max(24px, calc((100% - 1180px) / 2 + 24px));
  background: #eef2f8;
}
.section h2 { font-size: clamp(28px, 4vw, 40px); }
.grid3, .grid2 { display: grid; gap: 16px; }
.grid3 { grid-template-columns: repeat(3, 1fr); }
.grid2 { grid-template-columns: 1fr 1fr; }
.grid3 article, .grid2 article { padding: 22px; }
.grid3 h3, .grid2 h3 { margin: 10px 0 8px; font-size: 20px; }
.grid3 p, .grid2 p, .faq p { color: var(--mute); line-height: 1.55; margin: 0; }
.grid2 ul { color: var(--mute); line-height: 1.7; padding-left: 18px; }
.step {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--blue-soft);
  color: var(--blue-ink);
  font-size: 13px;
  font-weight: 700;
}

.faq { display: grid; gap: 10px; max-width: 860px; }
.faq-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 4px 18px 4px;
}
.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 14px 0;
  font-weight: 650;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item p { padding-bottom: 16px; }

.register { display: grid; grid-template-columns: 1.05fr .95fr; gap: 28px; align-items: start; }
.plain { color: var(--mute); line-height: 1.8; padding-left: 18px; }
.form-card { display: grid; gap: 10px; padding: 22px; box-shadow: var(--shadow); }
label {
  display: grid;
  gap: 6px;
  font-size: 13px;
  color: var(--mute);
}
input, select, textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  border-radius: 12px;
  padding: 10px 12px;
  font: inherit;
  outline: none;
}
input:focus, select:focus, textarea:focus { border-color: #bfd0ff; box-shadow: 0 0 0 3px rgba(37, 99, 235, .12); }
.msg { margin: 0; font-size: 14px; }
.msg.ok { color: var(--ok); }
.msg.err { color: var(--danger); }

footer {
  border-top: 1px solid var(--line);
  color: var(--mute);
  margin-top: 20px;
}
footer p { margin: 0; }
footer a { color: var(--blue-ink); }

@media (max-width: 900px) {
  .nav nav { display: none; }
  .hero, .grid3, .grid2, .register { grid-template-columns: 1fr; }
  .hero { padding: 24px 20px; }
  .hero-badges { grid-template-columns: 1fr 1fr; }
}