body {
  margin: 0;
  color: #1f2937;
  background: #f7f8fa;
  font: 14px/1.45 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  background: #ffffff;
  border-bottom: 1px solid #dde2ea;
}

h1, h2 {
  margin: 0 0 12px;
  font-size: 20px;
}

nav {
  display: flex;
  gap: 12px;
}

a, button {
  color: #0f4c81;
}

main {
  padding: 24px;
  display: grid;
  gap: 24px;
}

section, table {
  width: 100%;
}

form {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  align-items: end;
}

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

input, select, button {
  height: 36px;
  border: 1px solid #c9d2df;
  border-radius: 6px;
  padding: 0 10px;
  background: #fff;
}

button {
  font-weight: 700;
  cursor: pointer;
}

table {
  border-collapse: collapse;
  background: #fff;
}

th, td {
  padding: 10px;
  border: 1px solid #dde2ea;
  text-align: left;
  vertical-align: top;
}

video {
  width: 160px;
  aspect-ratio: 9 / 16;
  background: #111827;
  display: block;
  margin-bottom: 6px;
}

.ab {
  display: grid;
  grid-template-columns: repeat(2, minmax(220px, 360px));
  gap: 24px;
}