:root {
  --bg: #f6f6f4; --fg: #1d1d1f; --muted: #6b6b70; --card: #fff; --line: #e2e2e0;
  --accent: #c62828; --discarded: #8a8a8f; --check: #b26a00; --priority: #1b7f3b;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #111113; --fg: #ececee; --muted: #9a9aa0; --card: #1c1c1f; --line: #2c2c30;
    --discarded: #7a7a80; --check: #e0a030; --priority: #3fbf6a; }
}
* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.4 system-ui, sans-serif; background: var(--bg); color: var(--fg); padding-bottom: 3rem; }
header { position: sticky; top: 0; background: var(--card); border-bottom: 1px solid var(--line); padding: .5rem 1rem; z-index: 1; }
h1 { font-size: 1.1rem; margin: 0 0 .4rem; color: var(--accent); }
nav { display: flex; gap: .4rem; }
nav button { flex: 1; }
main { max-width: 40rem; margin: 0 auto; padding: 1rem; }
button, .button, .capture label, input, select {
  font: inherit; border-radius: .6rem; border: 1px solid var(--line); background: var(--card); color: var(--fg);
  padding: .6rem .8rem; min-height: 44px;
}
button, .button, .capture label { cursor: pointer; text-align: center; text-decoration: none; display: inline-block; }
nav button.active, .primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.capture { display: grid; gap: .5rem; }
.capture .primary { font-size: 1.2rem; padding: 1.2rem; }
.live { position: relative; margin-bottom: .5rem; }
.live video { width: 100%; max-height: 60vh; object-fit: cover; border-radius: .8rem; background: #000; display: block; }
.live .frame { position: absolute; inset: 0; margin: auto; height: 85%; aspect-ratio: 63 / 88; border: 3px solid #fff8; border-radius: .6rem; pointer-events: none;
  display: flex; align-items: center; justify-content: center; text-align: center; padding: 1rem; box-sizing: border-box; }
.live .frame span { display: none; color: #fff; font-size: 1.15rem; font-weight: bold; text-shadow: 0 0 6px #000; }
.live.aiming .frame span { display: block; }
.live .banner { position: absolute; left: .5rem; right: .5rem; bottom: .5rem; width: auto; color: #fff; font-weight: bold; border: 0; background: var(--check); opacity: .92; }
.live .banner.tier-discarded { background: var(--discarded); } .live .banner.tier-priority { background: var(--priority); }
label { display: grid; gap: .3rem; margin-bottom: .8rem; }
.scan { background: var(--card); border: 1px solid var(--line); border-radius: .8rem; padding: 1rem; margin-top: 1rem; border-top: 6px solid var(--check); }
.tier-discarded { border-top-color: var(--discarded); }
.tier-priority { border-top-color: var(--priority); }
.tier { font-weight: 700; text-transform: uppercase; letter-spacing: .04em; }
.tier-discarded .tier { color: var(--discarded); } .tier-check .tier { color: var(--check); } .tier-priority .tier { color: var(--priority); }
.card-head { display: flex; gap: .8rem; margin-top: .6rem; }
.card-head img { width: 110px; border-radius: .4rem; align-self: flex-start; }
h2 { font-size: 1.1rem; margin: 0 0 .3rem; }
h3 { font-size: .9rem; color: var(--muted); margin: 1rem 0 .3rem; }
small { display: block; color: var(--muted); font-size: .8rem; font-weight: normal; }
.prices { width: 100%; border-collapse: collapse; margin-bottom: .8rem; }
.prices th, .prices td { text-align: left; padding: .4rem 0; border-bottom: 1px solid var(--line); vertical-align: top; }
.prices td { text-align: right; }
.na { color: var(--muted); font-style: italic; }
.stale, .warn { color: var(--check); }
.warn, .ok { display: block; font-size: .85rem; }
.ok { color: var(--priority); }
.button { width: 100%; background: var(--accent); color: #fff; border-color: var(--accent); }
.candidates { list-style: none; padding: 0; margin: 0; display: grid; gap: .4rem; }
.candidates button { width: 100%; display: flex; gap: .6rem; align-items: center; text-align: left; }
.candidates img { width: 48px; border-radius: .3rem; }
.search { display: flex; gap: .4rem; margin: 1rem 0 .5rem; }
.search input { flex: 1; min-width: 0; }
.history { list-style: none; padding: 0; display: grid; gap: .5rem; }
.history li { display: flex; gap: .6rem; align-items: center; background: var(--card); border: 1px solid var(--line); border-left: 6px solid var(--check); border-radius: .6rem; padding: .5rem; cursor: pointer; }
.history li.tier-discarded { border-left-color: var(--discarded); }
.history li.tier-priority { border-left-color: var(--priority); }
.history img { width: 48px; border-radius: .3rem; }
.history .info { flex: 1; min-width: 0; }
.history .actions { display: flex; gap: .3rem; }
.history .actions a, .history .actions button { min-width: 44px; min-height: 44px; display: grid; place-items: center; padding: 0; border: 1px solid var(--line); border-radius: .5rem; color: var(--fg); text-decoration: none; }
.hint { color: var(--muted); font-size: .85rem; }
#logout { text-align: center; }
.link { border: 0; background: none; color: var(--muted); text-decoration: underline; }
.login { max-width: 22rem; margin: 15vh auto; padding: 1rem; }
.login form { display: grid; }
.error { color: var(--accent); }