:root {
  color-scheme: light dark;
  font-family: system-ui, sans-serif;
  line-height: 1.5;
}

body {
  margin: 0;
  background: #f5f7fb;
  color: #172033;
}

.container {
  box-sizing: border-box;
  width: min(100% - 2rem, 42rem);
  margin: 0 auto;
  padding: 4rem 0;
}

.eyebrow {
  margin: 0 0 0.5rem;
  color: #5167a6;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2.25rem, 8vw, 4rem);
  line-height: 1.05;
}

.lead {
  color: #4e5a70;
  font-size: 1.1rem;
}

.lookup-form,
.result {
  margin-top: 2rem;
  padding: 1.25rem;
  border: 1px solid #dbe1ec;
  border-radius: 0.75rem;
  background: #fff;
  box-shadow: 0 0.5rem 2rem rgb(37 54 89 / 8%);
}

.lookup-form label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 700;
}

.form-row {
  display: flex;
  gap: 0.75rem;
}

input,
button {
  box-sizing: border-box;
  min-height: 2.75rem;
  border-radius: 0.5rem;
  font: inherit;
}

input {
  min-width: 0;
  flex: 1;
  padding: 0.5rem 0.75rem;
  border: 1px solid #aeb9cd;
}

button {
  padding: 0.5rem 1rem;
  border: 0;
  background: #3157c8;
  color: #fff;
  cursor: pointer;
  font-weight: 700;
}

button:hover {
  background: #2446ad;
}

.message {
  margin: 0;
}

.error {
  color: #a32132;
}

footer {
  margin-top: 2rem;
  color: #68748a;
}

@media (prefers-color-scheme: dark) {
  body { background: #121724; color: #eef2fb; }
  .lead, footer { color: #b4bfd3; }
  .lookup-form, .result { border-color: #303a50; background: #1b2333; box-shadow: none; }
  input { border-color: #56627a; background: #121724; color: #eef2fb; }
}

.suggest-box {
  position: relative;
}

.suggest-list {
  position: absolute;
  z-index: 10;
  top: 0.25rem;
  left: 0;
  right: 0;
  margin: 0;
  padding: 0.25rem;
  list-style: none;
  border: 1px solid #aeb9cd;
  border-radius: 0.5rem;
  background: #fff;
  box-shadow: 0 0.75rem 2rem rgb(37 54 89 / 16%);
  max-height: 18rem;
  overflow-y: auto;
}

.suggest-list a {
  display: flex;
  gap: 0.75rem;
  align-items: baseline;
  padding: 0.5rem 0.6rem;
  border-radius: 0.375rem;
  color: inherit;
  text-decoration: none;
}

.suggest-list a:hover,
.suggest-list a:focus {
  background: #eef2fb;
}

.suggest-plate {
  font-weight: 700;
  min-width: 6.5rem;
}

.suggest-range {
  color: #68748a;
  font-size: 0.85rem;
  min-width: 8rem;
}

.suggest-unit {
  margin-left: auto;
  text-align: right;
}

@media (prefers-color-scheme: dark) {
  .suggest-list { background: #1b2333; border-color: #56627a; }
  .suggest-list a:hover, .suggest-list a:focus { background: #26314a; }
  .suggest-range { color: #b4bfd3; }
}