body {
  font-family: system-ui, sans-serif;
  max-width: 30rem;
  margin: 0 auto;
  padding: 1rem;
  line-height: 1.5;
}

header {
  display: flex;
  justify-content: space-between;
  font-size: .85rem;
  color: #555;
  margin-bottom: 1rem;
}

h2 { margin-top: 1.5rem; }

label {
  display: block;
  margin: 1rem 0 .25rem;
  font-weight: 600;
}

input, select {
  font-size: 1.1rem;
  width: 100%;
  padding: .6rem;
  box-sizing: border-box;
}

a { color: #1a73e8; }
small { color: #555; }

.err {
  background: #fce8e6;
  color: #a50e0e;
  padding: .6rem;
  border-radius: .4rem;
  margin: .5rem 0;
}

.ok {
  color: #137333;
  font-weight: 600;
  font-size: 1.3rem;
}

/* Full-width primary submit button (upload form). */
button.primary {
  font-size: 1.1rem;
  width: 100%;
  padding: .6rem;
  margin-top: 1.5rem;
  background: #137333;
  color: #fff;
  border: 0;
  border-radius: .4rem;
  font-weight: 600;
}

/* Links styled as buttons. */
a.button {
  display: block;
  text-align: center;
  color: #fff;
  padding: .7rem;
  border-radius: .4rem;
  text-decoration: none;
  margin: .75rem 0;
}
a.button.green { background: #137333; }
a.button.blue  { background: #1a73e8; }

/* Inline rename/add rows on the manage page. */
form.row {
  display: flex;
  gap: .4rem;
  margin: .3rem 0;
}
form.row input { flex: 1; padding: .4rem; }
form.row button { padding: .4rem .7rem; }
.add input { border: 1px solid #137333; }