:root {
  color-scheme: light;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  background: #f7f8fb;
  color: #161b22;
}

body {
  margin: 0;
}

button,
input,
select {
  font: inherit;
}

button {
  border: 1px solid #1f6feb;
  background: #1f6feb;
  color: white;
  border-radius: 6px;
  padding: 8px 12px;
  cursor: pointer;
}

button + button {
  margin-left: 8px;
}

input,
select {
  border: 1px solid #c9d1d9;
  border-radius: 6px;
  padding: 8px 10px;
  background: white;
}

label {
  display: grid;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
}

table {
  width: 100%;
  border-collapse: collapse;
}

td,
th {
  border-bottom: 1px solid #d8dee8;
  padding: 10px;
  text-align: left;
  vertical-align: top;
}

small {
  display: block;
  color: #57606a;
  margin-top: 4px;
}

.shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: 32px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: flex-start;
  margin-bottom: 24px;
}

.topbar h1 {
  margin: 0 0 6px;
  font-size: 28px;
}

.topbar p {
  margin: 0;
  color: #57606a;
}

.identity {
  display: flex;
  gap: 12px;
  align-items: center;
}

.grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.8fr) minmax(420px, 1.2fr);
  gap: 16px;
}

.panel {
  background: white;
  border: 1px solid #d8dee8;
  border-radius: 8px;
  padding: 18px;
  margin-bottom: 16px;
}

.panel h2 {
  margin: 0 0 16px;
  font-size: 18px;
}

.auth-grid,
.session-form {
  display: grid;
  gap: 14px;
}

.auth-grid {
  grid-template-columns: repeat(2, minmax(220px, 1fr));
}

.session-form {
  grid-template-columns: repeat(4, minmax(180px, 1fr));
}

.session-form button {
  align-self: end;
}

.ok {
  color: #1a7f37;
  font-weight: 700;
}

.bad {
  color: #cf222e;
  font-weight: 700;
}

.event-log {
  min-height: 80px;
  max-height: 280px;
  overflow: auto;
  background: #0d1117;
  color: #d8dee8;
  border-radius: 8px;
  padding: 14px;
}

@media (max-width: 860px) {
  .shell {
    padding: 18px;
  }

  .topbar,
  .grid,
  .auth-grid,
  .session-form {
    grid-template-columns: 1fr;
    display: grid;
  }
}