:root {
  --bs-primary: #2563eb;
  --bs-primary-rgb: 37, 99, 235;
  --bs-link-color: #2563eb;
  --bs-link-hover-color: #1d4ed8;
}

body {
  background: #f5f7fb;
}

.page-shell {
  min-height: 100vh;
}

.app-card {
  border: 0;
  border-radius: 1rem;
  box-shadow: 0 0.5rem 1.5rem rgba(15, 23, 42, 0.08);
}

.code-editor,
textarea,
input,
select {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
}

.cm-s-default {
  border-radius: 0.75rem;
}

.messages-list .alert:last-child {
  margin-bottom: 0;
}

.navbar-gradient {
  background: linear-gradient(135deg, #0f172a 0%, #1d4ed8 55%, #06b6d4 100%);
}

.btn-primary {
  box-shadow: 0 0.75rem 1.5rem rgba(37, 99, 235, 0.24);
}