:root {
  --bg: #ffffff;
  --bg-alt: #f4f6f9;
  --fg: #16202e;
  --muted: #5b6878;
  --line: #dfe4ec;
  --accent: #1f6feb;
  --accent-dark: #1655b8;
  --ok: #1a7f37;
  --warn: #9a6700;
  --bad: #c62828;
  --radius: 12px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--fg);
  background: var(--bg);
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 720px; }
.muted { color: var(--muted); }

.top { position: sticky; top: 0; z-index: 10; background: rgba(255,255,255,.92); backdrop-filter: blur(6px); border-bottom: 1px solid var(--line); }
.top__in { display: flex; align-items: center; gap: 24px; height: 64px; }
.logo { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 19px; color: var(--fg); }
.logo:hover { text-decoration: none; }
.nav { display: flex; gap: 20px; margin-left: auto; }
.nav a { color: var(--muted); }
@media (max-width: 820px) { .nav { display: none; } .top .btn { margin-left: auto; } }

.btn { display: inline-block; padding: 11px 20px; border-radius: 8px; border: 1px solid var(--accent); background: var(--accent); color: #fff; font: inherit; font-weight: 600; cursor: pointer; }
.btn:hover { background: var(--accent-dark); text-decoration: none; }
.btn--ghost { background: transparent; color: var(--accent); }
.btn--ghost:hover { background: var(--bg-alt); }

.hero { padding: 72px 0 64px; background: linear-gradient(180deg, #eef4ff 0%, #fff 100%); }
.hero__in { display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center; }
@media (max-width: 900px) { .hero__in { grid-template-columns: 1fr; } }
.eyebrow { color: var(--accent); font-weight: 600; margin: 0 0 8px; }
h1 { font-size: clamp(30px, 4.4vw, 46px); line-height: 1.15; margin: 0 0 16px; }
h2 { font-size: clamp(24px, 3vw, 32px); margin: 0 0 28px; }
h3 { margin: 0 0 8px; font-size: 18px; }
.lead { font-size: 18px; color: var(--muted); }
.hero__cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }

.panel { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 12px 40px rgba(22,32,46,.08); overflow: hidden; }
.panel__head, .panel__foot { padding: 12px 16px; font-size: 14px; color: var(--muted); background: var(--bg-alt); }
.panel__foot { color: var(--bad); }
.log { width: 100%; border-collapse: collapse; font-size: 14px; }
.log td { padding: 10px 16px; border-top: 1px solid var(--line); white-space: nowrap; }
.plate { font-family: ui-monospace, Consolas, monospace; font-weight: 600; }
.tag { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.tag--ok { background: #dafbe1; color: var(--ok); }
.tag--warn { background: #fff8c5; color: var(--warn); }
.tag--bad { background: #ffebe9; color: var(--bad); }

.section { padding: 64px 0; }
.section--alt { background: var(--bg-alt); }
.grid { display: grid; gap: 20px; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 900px) { .grid--2, .grid--3 { grid-template-columns: 1fr; } }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.card p { margin: 0; color: var(--muted); }

.steps { counter-reset: s; list-style: none; padding: 0; margin: 0; display: grid; gap: 16px; }
.steps li { counter-increment: s; position: relative; padding: 4px 0 4px 56px; min-height: 40px; }
.steps li::before { content: counter(s); position: absolute; left: 0; top: 0; width: 40px; height: 40px; border-radius: 50%; background: var(--accent); color: #fff; display: grid; place-items: center; font-weight: 700; }

.chips { list-style: none; padding: 0; margin: 0 0 16px; display: flex; flex-wrap: wrap; gap: 10px; }
.chips li { padding: 8px 14px; border: 1px solid var(--line); border-radius: 999px; background: #fff; }

.price ul { padding-left: 18px; margin: 12px 0 0; color: var(--muted); }
.price__val { font-size: 28px; font-weight: 700; color: var(--fg) !important; margin: 4px 0 0 !important; }
.price__val small { font-size: 15px; font-weight: 400; color: var(--muted); }
.price--hit { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }

details { border-bottom: 1px solid var(--line); padding: 14px 0; }
summary { cursor: pointer; font-weight: 600; }
details p { color: var(--muted); margin: 10px 0 0; }

.form { display: grid; gap: 14px; }
.form label { display: grid; gap: 6px; font-weight: 600; font-size: 14px; }
.form input { font: inherit; padding: 11px 12px; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.form input:focus { outline: 2px solid var(--accent); border-color: transparent; }
.form__msg { margin: 0; color: var(--ok); font-weight: 600; }
.form__msg--err { color: var(--bad); }

.auth { min-height: calc(100vh - 64px - 64px); display: grid; place-items: center; padding: 40px 20px; background: var(--bg-alt); }
.auth .card { width: 100%; max-width: 400px; }

.foot { border-top: 1px solid var(--line); padding: 22px 0; color: var(--muted); font-size: 14px; }
.foot__in { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }
.prose { padding: 48px 20px; }
.prose p, .prose li { color: var(--muted); }