:root {
  --green: #00913a;
  --green-dark: #00702d;
  --green-soft: #e7f5ec;
  --amber: #f29100;
  --amber-soft: #fff3df;
  --cream: #fbf7ef;
  --ink: #21302a;
  --muted: #6b7d74;
  --line: #e6e2d8;
  --card: #ffffff;
  --shadow: 0 1px 3px rgba(0, 0, 0, .06), 0 6px 18px rgba(0, 0, 0, .05);
  --radius: 16px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: "Noto Sans TC", system-ui, -apple-system, "PingFang TC", sans-serif;
  background: var(--cream);
  color: var(--ink);
  line-height: 1.55;
}

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(160deg, var(--green) 0%, var(--green-dark) 100%);
  color: #fff;
  padding: calc(env(safe-area-inset-top) + 28px) 20px 56px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: -1px; height: 28px;
  background: var(--cream);
  border-radius: 50% 50% 0 0 / 100% 100% 0 0;
}
.hero-inner { position: relative; z-index: 1; max-width: 560px; margin: 0 auto; }
.hero h1 { margin: 0 0 6px; font-size: 26px; font-weight: 900; letter-spacing: .5px; }
.hero .sub { margin: 0; font-size: 15px; opacity: .95; }
.hero .sub strong { color: #ffe7ad; }

/* ---------- Layout ---------- */
main { max-width: 680px; margin: -28px auto 0; padding: 0 16px 40px; position: relative; z-index: 2; }

.panel {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
  display: grid;
  gap: 14px;
}

.field { display: grid; gap: 6px; font-size: 13px; color: var(--muted); font-weight: 500; }
.field-row { display: flex; gap: 12px; align-items: end; }
.field-row > .field { flex: 1; }
.field-min { max-width: 110px; }

select, input {
  width: 100%;
  padding: 12px 12px;
  font-size: 16px;
  font-family: inherit;
  color: var(--ink);
  background: #fff;
  border: 1.5px solid var(--line);
  border-radius: 12px;
  appearance: none;
  -webkit-appearance: none;
}
select:focus, input:focus { outline: none; border-color: var(--green); box-shadow: 0 0 0 3px var(--green-soft); }

.btn {
  border: none;
  border-radius: 12px;
  padding: 13px 16px;
  font-size: 16px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: transform .05s ease, filter .15s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--green); color: #fff; }
.btn-primary:hover { filter: brightness(1.05); }
.btn-block { width: 100%; }
#btn-search { flex: 1; }
.ico { font-size: 18px; }
.btn-fav { background: var(--amber); color: #fff; }
.btn-fav:hover { filter: brightness(1.05); }

.divider { display: flex; align-items: center; gap: 12px; color: var(--muted); font-size: 13px; }
.divider::before, .divider::after { content: ""; flex: 1; height: 1px; background: var(--line); }

/* ---------- Status / summary ---------- */
.status { margin-top: 16px; padding: 16px; border-radius: 12px; text-align: center; font-weight: 500; }
.status.loading { background: var(--green-soft); color: var(--green-dark); }
.status.error { background: #fdecec; color: #b23b3b; }
.spinner {
  display: inline-block; width: 18px; height: 18px; margin-right: 8px; vertical-align: -3px;
  border: 3px solid rgba(0,0,0,.12); border-top-color: var(--green); border-radius: 50%;
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- 篩選晶片 ---------- */
.filter-bar {
  margin-top: 16px; padding: 14px 16px; background: var(--card);
  border-radius: var(--radius); box-shadow: var(--shadow);
  position: sticky; top: 8px; z-index: 5;
}
.filter-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.filter-title { font-size: 15px; font-weight: 700; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  border: 1.5px solid var(--line); background: #fff; color: var(--muted);
  border-radius: 999px; padding: 7px 13px; font-size: 14px; font-weight: 600;
  font-family: inherit; cursor: pointer; transition: background .12s, border-color .12s, color .12s;
  -webkit-tap-highlight-color: transparent;
}
.chip.active { background: var(--green-soft); border-color: var(--green); color: var(--green-dark); }
.chip.active::before { content: "✓ "; }
.chip .c { margin-left: 5px; font-size: 12px; font-weight: 500; opacity: .65; }
.chip-all { border-style: dashed; font-size: 13px; padding: 6px 12px; }
.filter-extra { display: flex; gap: 10px; align-items: center; margin-top: 12px; }
.filter-extra input[type="search"] { flex: 1; padding: 10px 12px; font-size: 15px; }
.minq { display: flex; align-items: center; gap: 4px; font-size: 13px; color: var(--muted); white-space: nowrap; }
.minq input { width: 58px; padding: 9px 8px; text-align: center; }

.summary {
  margin-top: 16px; padding: 14px 16px; background: var(--amber-soft);
  border: 1px solid #f3dcb5; border-radius: 12px; font-size: 14px;
}
.summary b { color: var(--amber); font-size: 18px; }
.summary .upd { color: var(--muted); font-size: 12px; margin-top: 4px; }

/* ---------- Result cards ---------- */
.results { margin-top: 16px; display: grid; gap: 14px; }
.card { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }
.card-head {
  padding: 14px 16px 10px; display: flex; align-items: baseline;
  justify-content: space-between; gap: 10px; flex-wrap: wrap;
}
.store-name { margin: 0; font-size: 18px; font-weight: 700; }

.head-right { display: flex; align-items: center; gap: 8px; }
.fav-btn {
  background: none; border: none; cursor: pointer; line-height: 1;
  font-size: 24px; color: #ccc; padding: 0 2px;
  -webkit-tap-highlight-color: transparent; transition: transform .1s;
}
.fav-btn:active { transform: scale(1.2); }
.fav-btn.on { color: var(--amber); }

.badges { display: flex; flex-wrap: wrap; gap: 6px; }
.badge { font-size: 13px; font-weight: 600; padding: 4px 10px; border-radius: 999px; }
.badge-count { background: var(--green-soft); color: var(--green-dark); }
.badge-qty { background: var(--amber-soft); color: var(--amber); }
.badge-dist { background: var(--green); color: #fff; }

.items { padding: 2px 16px 6px; border-top: 1px solid var(--line); }
.items[hidden] { display: none; }

.store-foot {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 10px 16px 14px; border-top: 1px dashed var(--line);
  font-size: 13px; color: var(--muted);
}
.store-foot .store-addr { flex: 1; }
.store-map { color: var(--green); font-weight: 600; text-decoration: none; white-space: nowrap; }

/* 結果工具列：排序 + 全部展開/收合 */
.results-toolbar {
  display: flex; align-items: center; gap: 10px 14px;
  margin-top: 14px; padding: 0 4px; flex-wrap: wrap;
}
.sort-field { display: flex; align-items: center; gap: 5px; font-size: 13px; color: var(--muted); font-weight: 600; }
.sort-field select { width: auto; padding: 8px 28px 8px 10px; font-size: 14px; border-radius: 10px; }
#toggle-all { margin-left: auto; }
.link-btn {
  background: none; border: none; color: var(--green-dark); font-weight: 600;
  font-size: 14px; font-family: inherit; cursor: pointer; padding: 6px 8px; white-space: nowrap;
}
.cat-group { margin-top: 12px; }
.cat-name { font-size: 13px; font-weight: 700; color: var(--muted); margin: 0 0 6px; }
.item {
  display: flex; justify-content: space-between; gap: 10px; align-items: center;
  padding: 7px 6px; border-bottom: 1px dashed var(--line); font-size: 15px;
  cursor: pointer; border-radius: 8px; -webkit-tap-highlight-color: transparent;
}
.item:last-child { border-bottom: none; }
.item:active { background: var(--green-soft); }
.item:hover .item-name { color: var(--green-dark); }
.item-name { display: flex; align-items: center; gap: 7px; min-width: 0; }
.item-tag {
  font-size: 11px; background: var(--green-soft); color: var(--green-dark);
  padding: 1px 7px; border-radius: 6px; font-weight: 600; white-space: nowrap; flex: none;
}
.item.item-picked { background: var(--amber-soft); }
.item .qty { font-weight: 700; color: var(--amber); white-space: nowrap; flex: none; }

/* 單品下鑽橫幅 */
.picked-bar {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  margin-top: 14px; padding: 11px 14px; background: var(--green-soft);
  border: 1px solid var(--green); border-radius: 12px;
}
.picked-label { font-size: 15px; min-width: 0; overflow-wrap: anywhere; }
.picked-clear {
  background: #fff; border: 1px solid var(--green); color: var(--green-dark);
  border-radius: 999px; padding: 6px 12px; font-size: 13px; font-weight: 600;
  font-family: inherit; cursor: pointer; white-space: nowrap; flex: none;
}

.empty { text-align: center; color: var(--muted); padding: 32px 16px; }

/* ---------- Footer ---------- */
.foot { max-width: 680px; margin: 0 auto; padding: 8px 20px 40px; text-align: center; color: var(--muted); font-size: 12px; }
.foot p { margin: 6px 0; }
.foot .muted { opacity: .8; }

@media (min-width: 560px) {
  .hero h1 { font-size: 30px; }
}