:root {
  --bg: #f4f6f8;
  --card: #fff;
  --text: #1c2430;
  --muted: #667085;
  --line: #e4e7ec;
  --ok: #067647;
  --warn: #b54708;
  --bad: #b42318;
  --accent: #175cd3;
  font-family: "Segoe UI", system-ui, sans-serif;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 1100px; margin: 0 auto; padding: 24px; }
.nav {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}
.nav .brand { font-weight: 700; margin-right: auto; }
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px 16px;
}
.card .label { color: var(--muted); font-size: 13px; }
.card .value { font-size: 28px; font-weight: 700; margin-top: 4px; }
table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
}
th, td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  font-size: 14px;
}
th { background: #f9fafb; color: var(--muted); font-weight: 600; }
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}
.badge.ok { background: #dcfae6; color: var(--ok); }
.badge.warn { background: #fef0c7; color: var(--warn); }
.badge.bad { background: #fee4e2; color: var(--bad); }
.form {
  display: grid;
  gap: 10px;
  max-width: 480px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px;
}
input, button, select {
  font: inherit;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--line);
}
button {
  background: var(--accent);
  color: #fff;
  border: none;
  cursor: pointer;
}
button.secondary { background: #344054; }
.muted { color: var(--muted); }
.flash {
  background: #eff8ff;
  border: 1px solid #b2ddff;
  color: #175cd3;
  padding: 10px 12px;
  border-radius: 8px;
  margin-bottom: 12px;
}
.login-box {
  max-width: 360px;
  margin: 80px auto;
}
audio { width: 100%; margin-top: 12px; }
pre {
  white-space: pre-wrap;
  background: #0f172a;
  color: #e2e8f0;
  padding: 12px;
  border-radius: 8px;
}