:root {
  --green: #0f7a4d;
  --green-d: #0a5a38;
  --green-l: #e5f4ec;
  --ink: #17211b;
  --muted: #5b6b61;
  --line: #dbe5de;
  --bg: #fafcfa;
  --card: #ffffff;
  --warn-bg: #fff4d6;
  --warn-ink: #6b4a00;
  --radius: 16px;
  --shadow: 0 1px 2px rgba(20, 40, 28, .08), 0 4px 14px rgba(20, 40, 28, .06);
}
@media (prefers-color-scheme: dark) {
  :root {
    --green: #3ec486; --green-d: #2ea571; --green-l: #12281e;
    --ink: #eaf3ed; --muted: #9db3a5; --line: #28382f; --bg: #0d1511; --card: #151f19;
    --warn-bg: #3a2f0c; --warn-ink: #ffe29a; --shadow: 0 1px 2px rgba(0,0,0,.4);
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  min-height: 100dvh; display: flex; flex-direction: column;
  padding-bottom: env(safe-area-inset-bottom);
}
main { flex: 1; width: 100%; max-width: 640px; margin: 0 auto; padding: 8px 16px 24px; }
[hidden] { display: none !important; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

.top {
  display: flex; align-items: center; justify-content: space-between;
  padding: calc(10px + env(safe-area-inset-top)) 16px 10px; max-width: 640px; margin: 0 auto; width: 100%;
}
.brand { display: flex; align-items: center; gap: 8px; text-decoration: none; color: var(--ink); font-size: 1.3rem; }
.brand b { color: var(--green); }
.pill, .chip {
  border: 1px solid var(--line); background: var(--card); color: var(--ink);
  border-radius: 999px; padding: 8px 14px; font: inherit; cursor: pointer; min-height: 44px;
}
.count { background: var(--green); color: #fff; border-radius: 999px; padding: 0 8px; font-size: .8rem; margin-left: 2px; }
.chip { display: inline-flex; gap: 6px; align-items: center; margin: 8px 0 4px; font-size: .95rem; }
.chip .edit { color: var(--green); font-weight: 600; }

h1 { font-size: 1.9rem; line-height: 1.15; margin: 18px 0 18px; }
h2 { font-size: 1.35rem; margin: 12px 0; }
h3 { margin: 0 0 12px; }

.actions { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.action {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px;
  min-height: 104px; border: 0; border-radius: var(--radius); background: var(--green); color: #fff;
  font: inherit; font-weight: 700; font-size: 1.02rem; cursor: pointer; box-shadow: var(--shadow);
}
@media (prefers-color-scheme: dark) { .action { color: #06140d; } }
.action .ico { font-size: 1.9rem; }
.action:active { transform: scale(.98); }
.action.listening { background: #c62828; color: #fff; animation: pulse 1.2s infinite; }
@keyframes pulse { 50% { opacity: .75; } }

.search { display: flex; gap: 8px; margin: 16px 0 6px; }
input[type=search], input[type=text], select {
  flex: 1; width: 100%; min-height: 48px; padding: 10px 14px; font: inherit; color: var(--ink);
  background: var(--card); border: 1px solid var(--line); border-radius: 12px;
}
input:focus-visible, button:focus-visible, select:focus-visible, a:focus-visible { outline: 3px solid var(--green); outline-offset: 2px; }
button.primary, button.ghost {
  min-height: 48px; padding: 0 18px; border-radius: 12px; font: inherit; font-weight: 700; cursor: pointer;
}
button.primary { background: var(--green); color: #fff; border: 0; }
@media (prefers-color-scheme: dark) { button.primary { color: #06140d; } }
button.ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
button.wide { width: 100%; margin-top: 12px; }
button.link { background: none; border: 0; padding: 0; color: var(--green); font: inherit; text-decoration: underline; cursor: pointer; }
button.back { background: none; border: 0; color: var(--green); font: inherit; font-weight: 600; padding: 10px 0; cursor: pointer; }
.hint { color: var(--muted); font-size: .92rem; margin: 6px 0; }
.row { display: flex; gap: 8px; margin-top: 12px; }

.demo { background: var(--warn-bg); color: var(--warn-ink); padding: 8px 16px; text-align: center; font-size: .9rem; }

.ad {
  margin-top: 24px; border: 1px dashed var(--line); border-radius: 12px; padding: 10px 14px;
  display: block; text-decoration: none; color: var(--ink); font-size: .92rem;
}
.ad .tag { display: inline-block; font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin-bottom: 2px; }
.ad img { max-width: 100%; border-radius: 8px; display: block; margin-top: 6px; }

/* Risultati */
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px; margin: 12px 0; box-shadow: var(--shadow);
}
.card h3 { font-size: 1.05rem; margin: 0 0 8px; display: flex; justify-content: space-between; gap: 8px; align-items: baseline; }
.best { background: var(--green-l); border-radius: 12px; padding: 12px; }
.best .store { font-weight: 700; }
.best .price { font-size: 1.7rem; font-weight: 800; color: var(--green); line-height: 1.1; }
.best .unit { color: var(--muted); font-size: .92rem; }
.meta { color: var(--muted); font-size: .85rem; margin-top: 6px; }
.badge { display: inline-block; font-size: .75rem; font-weight: 700; padding: 2px 8px; border-radius: 999px; background: var(--warn-bg); color: var(--warn-ink); margin-left: 6px; }
.badge.promo { background: var(--green); color: #fff; }
.go { display: inline-block; margin-top: 8px; color: var(--green); font-weight: 700; text-decoration: none; }
details { margin-top: 10px; }
summary { cursor: pointer; font-weight: 600; min-height: 36px; display: flex; align-items: center; }
.others { list-style: none; margin: 6px 0 0; padding: 0; }
.others li { display: flex; justify-content: space-between; gap: 10px; padding: 8px 0; border-top: 1px solid var(--line); font-size: .93rem; }
.others .r { text-align: right; white-space: nowrap; }
.empty { color: var(--muted); }
.note { color: var(--warn-ink); background: var(--warn-bg); padding: 6px 10px; border-radius: 8px; font-size: .85rem; margin-top: 8px; }
.opt h3 { font-size: 1.1rem; }
.opt .tot { font-weight: 800; font-size: 1.25rem; }
.opt ul { margin: 6px 0 0; padding-left: 18px; font-size: .93rem; }

/* Liste */
.items { list-style: none; padding: 0; margin: 12px 0; }
.items li {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 10px 12px; background: var(--card); border: 1px solid var(--line); border-radius: 12px; margin-bottom: 8px;
}
.items button { background: none; border: 0; font-size: 1.2rem; min-width: 44px; min-height: 44px; cursor: pointer; color: var(--muted); }

dialog { border: 0; border-radius: 20px; padding: 20px; width: min(92vw, 420px); background: var(--card); color: var(--ink); box-shadow: 0 10px 40px rgba(0,0,0,.3); }
dialog::backdrop { background: rgba(0,0,0,.5); }
dialog label { display: block; margin: 12px 0 4px; font-weight: 600; font-size: .92rem; }
#scanVideo { width: 100%; border-radius: 12px; background: #000; max-height: 260px; object-fit: cover; }

.skeleton { height: 120px; border-radius: var(--radius); background: linear-gradient(90deg, var(--line), var(--card), var(--line)); background-size: 200% 100%; animation: sh 1.2s infinite; margin: 12px 0; }
@keyframes sh { to { background-position: -200% 0; } }

.toast { position: fixed; left: 50%; bottom: calc(24px + env(safe-area-inset-bottom)); transform: translateX(-50%); background: var(--ink); color: var(--bg); padding: 10px 16px; border-radius: 12px; z-index: 50; max-width: 90vw; font-size: .93rem; }
.foot { text-align: center; color: var(--muted); font-size: .8rem; padding: 12px 20px 20px; }

@media (prefers-reduced-motion: reduce) { * { animation: none !important; } }
@media (min-width: 640px) { h1 { font-size: 2.3rem; } }