* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f5f6f8;
  color: #1f2933;
}

.edcs-shell {
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
}

.edcs-header,
.edcs-footer {
  padding: 12px 16px;
  background: #ffffff;
  border-bottom: 1px solid #d9dee7;
}

.edcs-footer {
  border-top: 1px solid #d9dee7;
  border-bottom: 0;
  font-size: 12px;
}

.edcs-main {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  padding: 12px;
}

.edcs-panel {
  background: #ffffff;
  border: 1px solid #d9dee7;
  border-radius: 8px;
  padding: 12px;
}

@media (min-width: 768px) {
  .edcs-main {
    grid-template-columns: 280px 1fr;
  }
}

@media (min-width: 1200px) {
  .edcs-main {
    grid-template-columns: 340px 1fr;
  }
}