/* Overlooted. Mobile first, app shell: sticky bar, scrollable content, fixed
   bottom tab bar. 16px input text (iOS zooms below that), 46px tap targets,
   safe-area padding for the home bar. */
:root {
  color-scheme: light;
  --ink: #15171c;
  --ink-2: #3d434e;
  --muted: #5f6773;
  --line: #e8eaf0;
  --bg: #ffffff;
  --wash: #f6f7fb;
  --brand: #8c1d3f;
  --brand-soft: #fdf1f5;
  --violet: #6d28d9;
  --violet-soft: #f3efff;
  --teal: #0f766e;
  --teal-soft: #e7f6f4;
  --amber: #b45309;
  --amber-soft: #fff6e8;
  --red: #b42318;
  --red-soft: #fef3f2;
  --green: #087443;
  --green-soft: #eafaf1;
  --shadow: 0 1px 3px rgba(21, 23, 28, .07), 0 6px 18px rgba(21, 23, 28, .05);
  --shadow-lg: 0 10px 30px rgba(89, 12, 36, .22);
  --tap: 46px;
  --appbar: 52px;
  --tabbar: 64px;
}

html { background: var(--wash); }

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

body {
  margin: 0 auto;
  padding: 0 14px calc(var(--tabbar) + 34px + env(safe-area-inset-bottom));
  max-width: 760px;
  background: var(--wash);
  color: var(--ink);
  font: 16px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  -webkit-text-size-adjust: 100%;
}

.ico { display: inline-flex; align-items: center; vertical-align: -3px; }
.ico svg { width: 18px; height: 18px; }

/* ---------- app bar ---------- */
.appbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 9px;
  height: var(--appbar);
  margin: 0 -14px;
  padding: 0 14px;
  background: rgba(255, 255, 255, .92);
  -webkit-backdrop-filter: saturate(1.4) blur(10px);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--line);
}
.home {
  display: flex; align-items: center; gap: 9px;
  min-height: var(--tap); padding: 0; margin-left: -2px;
  background: none; border: 0; border-radius: 10px;
  font: inherit; color: inherit; cursor: pointer;
}
.home:active { opacity: .65; }
.home:focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; }
.mark { width: 26px; height: 26px; flex: none; color: var(--brand); }
.wordmark { font-size: 16px; font-weight: 700; letter-spacing: -.015em; }
.wordmark b { color: var(--brand); font-weight: 700; }
@media (max-width: 400px) { .appbar-tag { display: none; } }
.appbar-tag {
  margin-left: auto; font-size: 10.5px; font-weight: 700; letter-spacing: .06em;
  text-transform: uppercase; color: var(--muted);
}

/* ---------- hero ---------- */
.hero {
  cursor: pointer;   /* tapping the hero drops you in the search box */
  margin: 14px 0;
  padding: 18px 18px 16px;
  border-radius: 22px;
  color: #fff;
  background: linear-gradient(140deg, #8c1d3f 0%, #b02a55 52%, #7b2f86 100%);
  box-shadow: var(--shadow-lg);
}
.hero h1 { margin: 0 0 8px; font-size: 24px; line-height: 1.18; letter-spacing: -.02em; }
.hero .lede { margin: 0; font-size: 14px; line-height: 1.5; color: rgba(255, 255, 255, .92); }
.hero .hint { margin: 10px 0 0; font-size: 13px; font-weight: 600; color: rgba(255, 255, 255, .92); }   /* the build date sits on the gradient too */
.counts { display: flex; flex-wrap: wrap; gap: 6px; margin: 14px 0 0; font-size: 12px; }
.counts span {
  padding: 4px 9px; border-radius: 999px;
  background: rgba(255, 255, 255, .16);
  border: 1px solid rgba(255, 255, 255, .24);
  color: #fff; font-weight: 700;
}

/* ---------- search ---------- */
.searchbox {
  position: sticky; top: var(--appbar); z-index: 10;
  margin: 0 -14px 12px; padding: 10px 14px 12px;
  background: var(--wash);
}
.searchbox label {
  display: block; margin-bottom: 6px;
  font-size: 11px; font-weight: 700; letter-spacing: .06em;
  text-transform: uppercase; color: var(--muted);
}
.field { position: relative; display: flex; align-items: center; }
.field .ico { position: absolute; left: 13px; color: var(--brand); pointer-events: none; }
.field input { padding-left: 40px; }
input {
  font: inherit; font-size: 16px; color: inherit;
  width: 100%; min-height: var(--tap);
  padding: 12px 14px;
  border: 1px solid var(--line); border-radius: 14px;
  background: var(--bg);
  box-shadow: var(--shadow);
}
input::placeholder { color: var(--muted); opacity: 1; }
input:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 2px solid var(--brand); outline-offset: 2px;
}
.fuzzy-note {
  margin: 8px 0 0; padding: 8px 10px; border-radius: 10px;
  font-size: 13px; color: var(--amber); background: var(--amber-soft);
}

/* ---------- card ---------- */
.card {
  margin: 0 0 12px; padding: 16px;
  border: 1px solid var(--line); border-radius: 20px;
  background: var(--bg); box-shadow: var(--shadow);
  scroll-margin-top: calc(var(--appbar) + 86px);
}
.card h2 { margin: 0 0 2px; font-size: 19px; line-height: 1.25; letter-spacing: -.01em; }
.ref { margin: 12px 0 6px; display: flex; align-items: baseline; flex-wrap: wrap; gap: 8px; }
.ref .big { font-size: 30px; font-weight: 800; letter-spacing: -.025em; color: var(--brand); }
.ref .muted { font-size: 13px; }
.trade { margin: 0 0 14px; font-size: 12.5px; color: var(--muted); }

.inputs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 4px; }
.inputs label { font-size: 11.5px; font-weight: 700; color: var(--muted); }
.inputs input { margin-top: 5px; background: var(--wash); box-shadow: none; border-radius: 12px; }
#mrp-label { grid-column: 1 / -1; }
.hint { margin: 10px 0 0; font-size: 12px; color: var(--muted); }

/* ---------- verdict ---------- */
.verdict {
  position: relative; margin: 16px 0 0; padding: 15px 16px 14px 18px;
  border-radius: 14px; border: 1px solid var(--line);
  background: var(--wash); overflow: hidden;
}
.verdict::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 5px;
  background: var(--muted);
}
.verdict p { margin: 0 0 7px; font-size: 14.5px; }
.verdict p:last-child { margin-bottom: 0; }
.verdict-label { font-weight: 800; font-size: 14px; display: flex; align-items: center; gap: 7px; }
.verdict-label .ico svg { width: 20px; height: 20px; }
.verdict-gap { font-weight: 800; font-size: 22px; letter-spacing: -.02em; }
.verdict-evidence { font-size: 12.5px; color: var(--muted); }
.v-over { background: var(--red-soft); border-color: #f4c9c4; }
.v-over::before { background: var(--red); }
.v-over .verdict-label, .v-over .verdict-gap { color: var(--red); }
.v-within { background: var(--green-soft); border-color: #bfe6cf; }
.v-within::before { background: var(--green); }
.v-within .verdict-label, .v-within .verdict-gap { color: var(--green); }
.v-benchmark { background: var(--amber-soft); border-color: #f0dcb8; }
.v-benchmark::before { background: var(--amber); }
.v-benchmark .verdict-label, .v-benchmark .verdict-gap { color: var(--amber); }

.actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 12px; }
.ghost {
  font: inherit; font-size: 14px; font-weight: 700; min-height: var(--tap);
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  padding: 10px 12px;
  border: 1px solid var(--line); border-radius: 12px;
  background: var(--bg); color: var(--ink); cursor: pointer;
  box-shadow: var(--shadow);
}
.ghost:hover { border-color: var(--brand); color: var(--brand); }

.src { margin: 12px 0 0; font-size: 11px; color: var(--muted); word-break: break-all; }
.empty { margin: 18px 0 0; font-size: 14px; color: var(--muted); }
.list { display: flex; flex-direction: column; gap: 8px; margin-top: 10px; }

/* ---------- result rows ---------- */
.row {
  font: inherit; text-align: left;
  display: grid; grid-template-columns: 1fr auto; gap: 2px 10px;
  padding: 14px 14px 14px 16px; min-height: var(--tap);
  border: 1px solid var(--line); border-radius: 16px;
  background: var(--bg); cursor: pointer; box-shadow: var(--shadow);
  position: relative; overflow: hidden;
}
.row::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--brand); }
.row:hover { border-color: #d6d9e3; }
.row-name { font-weight: 700; }
.row mark { background: #ffe9a8; color: inherit; border-radius: 4px; padding: 0 1px; }

/* starter chips: the molecules people actually arrive with */
.chips { display: flex; flex-wrap: wrap; gap: 7px; margin: 12px 0 0; }
.chip {
  font: inherit; font-size: 13px; font-weight: 700;
  min-height: var(--tap); padding: 10px 14px;
  border: 1px solid var(--brand-soft); border-radius: 999px;
  background: var(--brand-soft); color: var(--brand); cursor: pointer;
}
.chip:hover { background: #fbe3ea; border-color: #f3c6d3; }
.chip:active { transform: scale(.98); }
.row-form { grid-column: 1 / -1; font-size: 13px; color: var(--muted); }
.row-price { grid-row: 1; grid-column: 2; font-weight: 700; font-variant-numeric: tabular-nums; }
.tag {
  grid-column: 1 / -1; justify-self: start; margin-top: 6px;
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 11px; font-weight: 700; padding: 3px 9px; border-radius: 999px;
}
.tag .ico svg { width: 13px; height: 13px; }
.tag-law { background: var(--brand-soft); color: var(--brand); }
.tag-bench { background: var(--teal-soft); color: var(--teal); }
.tag-tmr { background: var(--violet-soft); color: var(--violet); }
.tag-brand { background: var(--amber-soft); color: var(--amber); }

.brand-note {
  margin: 10px 0; padding: 8px 10px; border-radius: 10px;
  font-size: 13px; color: var(--amber); background: var(--amber-soft);
}
#siblings { margin: 10px 0 12px; }
.sib {
  font: inherit; text-align: left; display: block; width: 100%; min-height: var(--tap);
  margin-top: 6px; padding: 11px 12px;
  border: 1px solid var(--line); border-radius: 12px;
  background: var(--wash); cursor: pointer;
}
.sib:hover { border-color: var(--brand); }
.more { font-size: 13px; color: var(--muted); }

/* ---------- rules, faq, about ---------- */
.panel[hidden] { display: none; }
.panel { animation: panel-in .18s ease-out; }
@keyframes panel-in { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

.panel-title {
  display: flex; align-items: center; gap: 8px;
  margin: 16px 0 12px; font-size: 20px; font-weight: 700; letter-spacing: -.02em;
}
.panel-title .ico { color: var(--brand); }
.panel-title .ico svg { width: 21px; height: 21px; }

.tmr {
  margin: 0 0 10px; padding: 2px 16px;
  border: 1px solid var(--line); border-radius: 16px;
  background: var(--bg); box-shadow: var(--shadow);
}
.tmr summary {
  cursor: pointer; font-weight: 700; font-size: 14.5px;
  min-height: var(--tap); display: flex; align-items: center; gap: 9px;
  padding: 10px 0;
}
.tmr summary .ico { color: var(--brand); flex: none; }
.tmr summary .ico svg { width: 18px; height: 18px; }
.tmr p, .tmr li { font-size: 14px; color: var(--ink-2); }
.tmr ul { padding-left: 20px; margin: 4px 0 12px; }
.tmr li { margin: 5px 0; }
.tmr p:last-child { margin-bottom: 14px; }

.prose { padding-bottom: 8px; }
.prose > p, .prose li { font-size: 14px; color: var(--ink-2); }
.prose h2 { margin: 22px 0 6px; font-size: 15px; letter-spacing: -.01em; color: var(--brand); }
.prose ul { padding-left: 20px; margin: 4px 0; }
.prose li { margin: 5px 0; }
.src-table {
  width: 100%; border-collapse: collapse; font-size: 13px;
  margin: 6px 0 4px; display: block; overflow-x: auto;
}
.src-table th, .src-table td {
  text-align: left; padding: 9px 10px 9px 0; vertical-align: top;
  border-bottom: 1px solid var(--line); min-width: 84px;
}
.src-table th { font-size: 11px; letter-spacing: .05em; text-transform: uppercase; color: var(--muted); }

.muted { color: var(--muted); font-size: 13px; }

footer { margin: 22px 0 0; padding-top: 14px; border-top: 1px solid var(--line); }
footer p { font-size: 11.5px; color: var(--muted); margin: 0; }

.sr-only {
  position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip {
  position: absolute; left: -9999px; top: 0;
  padding: 12px 16px; border-radius: 0 0 12px 0;
  background: var(--bg); color: var(--brand); font-weight: 700; font-size: 14px;
  box-shadow: var(--shadow);
}
.skip:focus { left: 0; z-index: 100; }

/* ---------- bottom tab bar ---------- */
.tabbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 30;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 2px;
  padding: 6px 6px calc(6px + env(safe-area-inset-bottom));
  background: rgba(255, 255, 255, .96);
  -webkit-backdrop-filter: saturate(1.4) blur(12px);
  backdrop-filter: saturate(1.4) blur(12px);
  border-top: 1px solid var(--line);
  box-shadow: 0 -4px 18px rgba(21, 23, 28, .07);
}
.tab {
  font: inherit; font-size: 11px; font-weight: 700;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px;
  min-height: var(--tabbar); padding: 6px 2px;
  border: 0; border-radius: 14px;
  background: transparent; color: var(--muted); cursor: pointer;
}
.tab .ico svg { width: 22px; height: 22px; }
.tab[aria-selected="true"] { background: var(--brand-soft); color: var(--brand); }
.tab:hover { color: var(--ink); }
#tab-learn[aria-selected="true"] { background: var(--violet-soft); color: var(--violet); }
#tab-faq[aria-selected="true"] { background: var(--teal-soft); color: var(--teal); }
#tab-about[aria-selected="true"] { background: var(--amber-soft); color: var(--amber); }

/* ---------- install snackbar ---------- */
.snackbar {
  position: fixed; left: 12px; right: 12px;
  bottom: calc(var(--tabbar) + 12px + env(safe-area-inset-bottom));
  z-index: 40;
  display: flex; align-items: center; gap: 10px;
  padding: 8px 8px 8px 14px;
  border-radius: 14px;
  background: #23262e; color: #fff;
  box-shadow: 0 10px 30px rgba(20, 24, 33, .32);
  font-size: 13px;
  animation: snack-in .18s ease-out;
}
.snackbar[hidden] { display: none; }   /* the hidden attribute loses to display:flex */
.snackbar .ico { color: #b9bec9; }
.snackbar-text { flex: 1; }
.snackbar-go {
  font: inherit; font-size: 13px; font-weight: 700; min-height: var(--tap); padding: 8px 16px;
  border: 0; border-radius: 9px;
  background: #fff; color: var(--brand); cursor: pointer;
}
.snackbar-no {
  display: inline-flex; align-items: center; justify-content: center;
  width: var(--tap); height: var(--tap); padding: 0;
  border: 0; border-radius: 9px; background: transparent; color: #b9bec9; cursor: pointer;
}
@keyframes snack-in { from { transform: translateY(12px); opacity: 0; } to { transform: none; opacity: 1; } }

/* ---------- wider screens: the tab bar becomes a top control ---------- */
@media (min-width: 780px) {
  body { padding: 0 20px 40px; max-width: 800px; }
  .appbar { margin: 0 -20px; padding: 0 20px; }
  .hero h1 { font-size: 27px; }
  .searchbox { position: static; margin: 0 0 14px; padding: 0 0 12px; }
  .tabbar {
    position: sticky; top: var(--appbar); bottom: auto;
    grid-template-columns: repeat(4, auto); justify-content: start;
    gap: 4px; padding: 8px 0; margin: 0 0 14px;
    background: var(--wash); border-top: 0; box-shadow: none;
    -webkit-backdrop-filter: none; backdrop-filter: none;
  }
  .tab {
    flex-direction: row; gap: 7px; font-size: 13.5px;
    min-height: 40px; padding: 8px 14px; border-radius: 999px;
    border: 1px solid var(--line); background: var(--bg);
  }
  .tab .ico svg { width: 17px; height: 17px; }
  .tab[aria-selected="true"] { border-color: currentColor; }
  .snackbar { left: auto; right: 20px; width: 380px; bottom: 20px; }
  .inputs { grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); }
  #mrp-label { grid-column: auto; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

@page { margin: 14mm; }
@media print {
  .tabbar, .snackbar, .appbar, .searchbox, .list, .empty, .actions, .hint, .ico, footer,
  #siblings, #found, #fuzzy-note, #brand-note { display: none !important; }
  body { max-width: none; padding: 0; background: #fff; }
  .hero { display: none !important; }   /* the card is the document; the question is not a title */
  .card, .tmr, .row { border: 1px solid #ddd; box-shadow: none; }
  .verdict { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
}