* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: #0b1020;
  color: #e6ecff;
}

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 2rem 1rem 3rem;
}

h1,
h2,
h3 {
  margin: 0 0 0.75rem;
}

.subtitle {
  color: #b8c2e9;
  margin-bottom: 1.5rem;
}

.drop-zone {
  border: 2px dashed #4960b8;
  background: #131b35;
  border-radius: 12px;
  padding: 2.5rem 1rem;
  text-align: center;
  transition: border-color 160ms ease, background 160ms ease;
  margin-bottom: 1.5rem;
}

.drop-zone.active {
  border-color: #73afff;
  background: #18244a;
}

.hint {
  color: #94a3dc;
  margin: 0.5rem 0 0;
}

.fields,
.raw-message,
.body-grid article {
  background: #131b35;
  border: 1px solid #283560;
  border-radius: 10px;
  padding: 1rem;
}

.fields {
  margin-bottom: 1rem;
}

dl {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 0.5rem 0.75rem;
  margin: 0;
}

dt {
  font-weight: 600;
  color: #c5d2ff;
}

dd {
  margin: 0;
  color: #e8eeff;
  overflow-wrap: anywhere;
}

.body-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

@media (min-width: 900px) {
  .body-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.body-box {
  margin: 0;
  max-height: 300px;
  overflow: auto;
  background: #0a122c;
  border: 1px solid #283560;
  border-radius: 8px;
  padding: 0.75rem;
  white-space: pre-wrap;
  word-wrap: break-word;
}

.empty {
  color: #95a4db;
}