:root {
  --codi-red: #E93830;
  --ink: #1A1A1A;
  --grey: #464547;
  --light: #F5F5F5;
  --border: #D9D9D9;
}

* { box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  color: var(--ink);
  background: var(--light);
  margin: 0;
  line-height: 1.5;
}

header {
  background: var(--ink);
  color: white;
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 4px solid var(--codi-red);
}

header h1 { margin: 0; font-size: 1.25rem; font-weight: 600; }
#auth-status { font-size: 0.875rem; color: #ccc; }

main {
  max-width: 720px;
  margin: 2rem auto;
  padding: 0 1.5rem;
}

section { margin-bottom: 1.5rem; }

fieldset {
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1rem 1.25rem;
  margin: 0 0 1rem;
  background: white;
}

legend {
  font-weight: 600;
  padding: 0 0.5rem;
  color: var(--codi-red);
}

label {
  display: block;
  font-size: 0.875rem;
  margin: 0.5rem 0 0.25rem;
  color: var(--grey);
}

input[type=text] {
  width: 100%;
  padding: 0.5rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 1rem;
  font-family: inherit;
}

input:invalid:not(:placeholder-shown) { border-color: var(--codi-red); }

button {
  background: var(--codi-red);
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: 0.5rem;
}

button:hover:not(:disabled) { background: #b82a25; }
button:disabled { background: var(--grey); cursor: not-allowed; opacity: 0.6; }
button.link { background: none; color: var(--codi-red); padding: 0; font-weight: 400; }

#audience-summary, #template-summary {
  margin-top: 0.75rem;
  padding: 0.75rem;
  background: var(--light);
  border-left: 3px solid var(--codi-red);
  font-size: 0.875rem;
}

#confirm-instructions {
  background: #FFF8E1;
  padding: 0.75rem;
  border-left: 3px solid #F9A825;
  font-size: 0.875rem;
  margin: 0.5rem 0;
}

#result {
  padding: 1rem;
  background: #E8F5E9;
  border-left: 3px solid #2E7D32;
  border-radius: 4px;
}

#error-banner {
  padding: 1rem 1.5rem;
  background: #FFEBEE;
  border-left: 3px solid var(--codi-red);
  color: #B71C1C;
  margin: 1rem auto;
  max-width: 720px;
}

footer {
  text-align: center;
  font-size: 0.75rem;
  color: var(--grey);
  padding: 2rem 1rem;
  border-top: 1px solid var(--border);
}