body { font-family: system-ui, sans-serif; margin: 0; background: #f6f7f9; color: #222; }
header { background: #1a365d; color: #fff; padding: 12px 20px; display: flex; justify-content: space-between; align-items: center; }
header a, header button { color: #fff; margin-left: 16px; background: none; border: none; cursor: pointer; font-size: 1rem; }
main { max-width: 960px; margin: 24px auto; padding: 0 16px; }
.search-box, form { background: #fff; padding: 16px; border-radius: 8px; box-shadow: 0 1px 3px rgba(0,0,0,.08); display: flex; gap: 12px; flex-wrap: wrap; align-items: end; margin-bottom: 20px; }
label { display: flex; flex-direction: column; font-size: .9rem; }
input, select, button { padding: 8px 10px; font-size: 1rem; }
button { background: #2b6cb0; color: #fff; border: none; border-radius: 4px; cursor: pointer; }
button:hover { background: #2c5282; }
#results { display: grid; gap: 12px; }
.card { background: #fff; padding: 14px; border-radius: 8px; box-shadow: 0 1px 3px rgba(0,0,0,.08); }
.card .price { font-size: 1.4rem; font-weight: 600; color: #2b6cb0; }
.card .stock { color: #276749; }
.card .err { color: #c53030; }
ul { list-style: none; padding: 0; }
li { background: #fff; margin: 6px 0; padding: 10px; border-radius: 6px; display: flex; justify-content: space-between; }
.login { display: flex; align-items: center; justify-content: center; height: 100vh; }
.login form { flex-direction: column; width: 280px; }
#status { margin: 12px 0; color: #4a5568; }