:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --text: #1b1d21;
  --muted: #6b7280;
  --line: #e5e7eb;
  --accent: #2f6fed;
  --accent-dark: #1f56c4;
  --ok: #15803d;
  --ok-bg: #e8f5ec;
  --warn: #a16207;
  --warn-bg: #fdf6e3;
  --err: #b42318;
  --err-bg: #fdecea;
  --radius: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.55;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.demo-bar {
  background: #fff8db;
  color: #7a5c00;
  border-bottom: 1px solid #f0e2a8;
  font-size: 13px;
  padding: 6px 20px;
  text-align: center;
}

header.top {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 14px 28px;
  background: var(--card);
  border-bottom: 1px solid var(--line);
}

.brand {
  font-weight: 700;
  font-size: 18px;
  color: var(--text);
  letter-spacing: -0.2px;
}
.brand span { color: var(--accent); }

header nav { display: flex; gap: 18px; align-items: center; margin-left: auto; font-size: 15px; }
header nav a { color: #374151; }
header nav a.active { color: var(--accent); font-weight: 600; }
.who { color: var(--muted); font-size: 14px; }

.wrap { max-width: 1060px; margin: 0 auto; padding: 28px 20px 64px; }

h1 { font-size: 30px; line-height: 1.25; margin: 0 0 12px; letter-spacing: -0.4px; }
h2 { font-size: 21px; margin: 32px 0 12px; }
h3 { font-size: 17px; margin: 24px 0 8px; }
p { margin: 0 0 12px; }
ul { margin: 0 0 14px; padding-left: 22px; }
li { margin-bottom: 6px; }

.lead { font-size: 18px; color: #374151; max-width: 720px; }
.muted { color: var(--muted); }
.small { font-size: 14px; }
.tiny { font-size: 13px; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
}
.card h2:first-child, .card h3:first-child { margin-top: 0; }

.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 980px) { .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 860px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.hero { padding: 24px 0 8px; }
.hero .lead { margin-bottom: 24px; }

.cta { display: flex; gap: 12px; flex-wrap: wrap; margin: 20px 0 8px; }

.btn {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 9px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}
.btn:hover { background: var(--accent-dark); border-color: var(--accent-dark); text-decoration: none; }
.btn-ghost { background: #fff; color: var(--accent); }
.btn-ghost:hover { background: #eef2ff; color: var(--accent-dark); }
.btn-danger { background: #fff; color: var(--err); border-color: #f0c2bd; }
.btn-danger:hover { background: var(--err-bg); }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
.btn-sm { padding: 6px 12px; font-size: 14px; }

.badge {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 600;
  white-space: nowrap;
}
.badge-ok { background: var(--ok-bg); color: var(--ok); }
.badge-warn { background: var(--warn-bg); color: var(--warn); }
.badge-err { background: var(--err-bg); color: var(--err); }
.badge-muted { background: #f1f3f5; color: #5b6270; }
.badge-run { background: #e8f0fe; color: var(--accent-dark); }

.flash {
  border-radius: 10px;
  padding: 12px 16px;
  margin-bottom: 18px;
  font-size: 15px;
  border: 1px solid;
}
.flash-ok { background: var(--ok-bg); color: var(--ok); border-color: #bfe3ca; }
.flash-error { background: var(--err-bg); color: var(--err); border-color: #f3c7c2; }

table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
th {
  text-align: left;
  font-size: 12px;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
  padding: 8px 10px;
  border-bottom: 1px solid var(--line);
}
td { padding: 10px; border-bottom: 1px solid #f0f1f3; vertical-align: top; }
tr:last-child td { border-bottom: none; }
.num { text-align: right; font-variant-numeric: tabular-nums; }

.row { display: flex; gap: 16px; align-items: flex-start; justify-content: space-between; flex-wrap: wrap; }
.stack { display: flex; flex-direction: column; gap: 10px; }

/* статусы подключения */
.svc { display: flex; align-items: center; gap: 10px; }
.svc strong { font-weight: 600; }

/* прогресс */
.bar { height: 8px; background: #edf0f4; border-radius: 999px; overflow: hidden; margin: 10px 0 4px; }
.bar span { display: block; height: 100%; background: var(--accent); border-radius: 999px; transition: width .4s ease; }

.steps { list-style: none; padding: 0; margin: 16px 0 0; }
.steps li { display: flex; gap: 12px; align-items: center; padding: 7px 0; color: var(--muted); font-size: 15px; }
.steps li .dot { width: 10px; height: 10px; border-radius: 50%; background: #d5d9df; flex: none; }
.steps li.done { color: var(--text); }
.steps li.done .dot { background: var(--ok); }
.steps li.now { color: var(--text); font-weight: 600; }
.steps li.now .dot { background: var(--accent); box-shadow: 0 0 0 4px #e3ecff; }

/* формы */
label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; }
input[type=text], input[type=email], input[type=password], select, textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #d3d8e0;
  border-radius: 9px;
  font-size: 15px;
  font-family: inherit;
  background: #fff;
  color: var(--text);
}
input:focus, select:focus, textarea:focus { outline: 2px solid #cfe0ff; border-color: var(--accent); }
.field { margin-bottom: 16px; }
.hint { font-size: 13px; color: var(--muted); margin-top: 5px; }
.check { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; }
.check input { margin-top: 3px; }
form.inline { display: inline; }

.auth { max-width: 420px; margin: 40px auto; }
.auth .card { padding: 28px; }
.auth h1 { font-size: 24px; }

/* лендинг */
.points { display: grid; gap: 14px; grid-template-columns: repeat(2, minmax(0, 1fr)); margin: 22px 0; }
.points div { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; font-size: 15px; }
.points b { display: block; margin-bottom: 4px; }
@media (max-width: 760px) { .points { grid-template-columns: 1fr; } }

/* отчёт */
.report { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 34px 40px; }
.report h1 { font-size: 27px; }
.report h2 { font-size: 20px; margin-top: 28px; padding-top: 6px; }
.report h3 { font-size: 17px; }
.report table { margin: 14px 0 18px; }
.report code { background: #f3f4f6; padding: 1px 5px; border-radius: 5px; font-size: 14px; }
.report pre { background: #f7f8fa; border: 1px solid var(--line); border-radius: 9px; padding: 14px; overflow: auto; }
.report pre code { background: none; padding: 0; }
.report blockquote { margin: 12px 0; padding-left: 14px; border-left: 3px solid var(--line); color: var(--muted); }
@media (max-width: 760px) { .report { padding: 22px 18px; } }

footer {
  border-top: 1px solid var(--line);
  padding: 22px 28px;
  color: var(--muted);
  font-size: 13.5px;
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  background: var(--card);
}
footer a { color: var(--muted); }

.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
  display: inline-block;
  padding: 5px 11px;
  border: 1px solid #d3d8e0;
  border-radius: 999px;
  font-size: 13.5px;
  color: #374151;
  background: #fff;
}
.chip:hover { text-decoration: none; border-color: var(--accent); color: var(--accent); }
.chip.on { background: #eef2ff; border-color: #c7d7ff; color: var(--accent-dark); font-weight: 600; }

.kv { display: grid; grid-template-columns: 180px 1fr; gap: 6px 14px; font-size: 14.5px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; }