:root {
  --bg: #f4f6f8;
  --card: #ffffff;
  --text: #1c2430;
  --muted: #5b6675;
  --line: #d9dee5;
  --accent: #0b6bcb;
  --ok: #1a7f37;
  --error: #b42318;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

header, main { max-width: 1100px; margin: 0 auto; padding: 0 16px; }
header { padding-top: 16px; }
h1 { font-size: 1.3rem; margin: 0 0 4px; }
h2 { font-size: 1.05rem; margin: 0 0 12px; }
.hint, .status { color: var(--muted); margin: 6px 0; overflow-wrap: anywhere; }
.status.ok { color: var(--ok); }
.status.error { color: var(--error); }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  margin: 16px 0;
}

form { display: grid; gap: 10px; max-width: 420px; }
label { display: grid; gap: 4px; }
input[type=email], input[type=password] {
  font: inherit;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  width: 100%;
}
.toggle { display: flex; gap: 8px; align-items: center; margin-top: 10px; }

button {
  font: inherit;
  padding: 7px 12px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  border-radius: 6px;
  cursor: pointer;
}
button.secondary { background: #fff; color: var(--accent); }
button:disabled { opacity: .5; cursor: default; }

.row { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.buttons { display: flex; flex-wrap: wrap; gap: 8px; }

.table-wrap { width: 100%; }
table { width: 100%; border-collapse: collapse; table-layout: fixed; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--line); vertical-align: top; overflow-wrap: anywhere; }
th { font-weight: 600; color: var(--muted); }
td .buttons { gap: 4px; }
td button { padding: 4px 8px; font-size: .85rem; }

svg { width: 100%; max-height: 360px; background: #eef2f6; border-radius: 6px; }
svg polyline { fill: none; stroke: var(--accent); stroke-width: 2; }
svg circle { fill: var(--error); }

pre {
  margin: 0;
  max-height: 420px;
  overflow: auto;
  background: #0f1720;
  color: #e6edf3;
  padding: 12px;
  border-radius: 6px;
  font-size: .8rem;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

@media (max-width: 767px) {
  table, thead, tbody, tr, th, td { display: block; }
  thead { display: none; }
  tr { border: 1px solid var(--line); border-radius: 6px; margin-bottom: 10px; padding: 6px; }
  td { border: 0; padding: 3px 4px; }
  td::before { content: attr(data-label); display: block; font-size: .75rem; color: var(--muted); }
}