/* AI Palm Lab - mobile first, big buttons, vertical scrolling only. */
:root {
  --ink: #1b1530;
  --muted: #4d4766;
  --bg: #f6f3ff;
  --card: #ffffff;
  --line: #ddd5f5;
  --purple: #5b2bd6;
  --science: #0b7a75;
  --story: #c2410c;
  --test: #1d4ed8;
  --learn: #7c3aed;
  --warn-bg: #fff4d6;
  --warn-ink: #6b4400;
  --good: #12703a;
  --bad: #b42318;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 18px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  overflow-x: hidden;
}
main { max-width: 640px; margin: 0 auto; padding: 0 16px 24px; }
h1 { font-size: 2.3rem; margin: 18px 0 0; color: var(--purple); text-align: center; }
h2 { font-size: 1.6rem; margin: 18px 0 8px; }
h3 { font-size: 1.25rem; margin: 18px 0 8px; }
p { margin: 8px 0; }
.sub { text-align: center; font-size: 1.3rem; font-weight: 700; margin: 0; color: var(--story); }
.lead { font-size: 1.05rem; color: var(--muted); }
.small { font-size: .9rem; color: var(--muted); }
[hidden] { display: none !important; }

/* top bar */
.topbar {
  position: sticky; top: 0; z-index: 5; display: flex; align-items: center; gap: 8px;
  padding: 8px 12px; padding-top: max(8px, env(safe-area-inset-top));
  background: var(--purple); color: #fff;
}
.brand { font-weight: 800; font-size: 1.1rem; flex: 1; }
.iconbtn, .pill {
  min-height: 48px; min-width: 48px; border: 0; border-radius: 24px; cursor: pointer;
  background: rgba(255,255,255,.18); color: #fff; font: inherit; font-weight: 700;
}
.pill { padding: 0 16px; font-size: .95rem; }

/* home buttons */
.bigbtns { display: grid; gap: 14px; margin: 18px 0; }
.big {
  display: grid; grid-template-columns: 56px 1fr; grid-template-rows: auto auto; align-items: center;
  column-gap: 12px; padding: 16px 18px; min-height: 84px; border-radius: 18px;
  color: #fff; text-decoration: none; font-size: 2rem; box-shadow: 0 4px 0 rgba(0,0,0,.18);
}
.big span { font-size: 1.25rem; font-weight: 800; grid-column: 2; }
.big small { font-size: .95rem; grid-column: 2; opacity: .95; }
.big .ic { grid-row: 1 / span 2; grid-column: 1; font-weight: 400; }
.science { background: var(--science); } .story { background: var(--story); }
.test { background: var(--test); } .learn { background: var(--learn); }
.big:active { transform: translateY(2px); box-shadow: 0 2px 0 rgba(0,0,0,.18); }

/* buttons */
.row { display: flex; gap: 10px; flex-wrap: wrap; margin: 10px 0; }
.btn {
  flex: 1 1 140px; min-height: 52px; padding: 10px 16px; border-radius: 14px; cursor: pointer;
  border: 2px solid var(--purple); background: #fff; color: var(--purple);
  font: inherit; font-weight: 700; text-align: center; text-decoration: none;
  display: inline-flex; align-items: center; justify-content: center;
}
.btn.primary { background: var(--purple); color: #fff; }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn.wide { width: 100%; margin: 10px 0; }

/* notices */
.privacy { background: #e3f7ee; color: #0d5132; border-radius: 12px; padding: 10px 14px; }
.note { background: #fff; border-left: 5px solid var(--purple); border-radius: 10px; padding: 10px 14px; }
.note.warn, .warnbanner { background: var(--warn-bg); color: var(--warn-ink); border-left-color: #d99a00; }
.warnbanner { font-weight: 800; border-radius: 12px; padding: 12px 14px; border-left: 6px solid #d99a00; }
.status { min-height: 1.5em; font-weight: 700; color: var(--muted); }

/* camera stage */
.stage {
  position: relative; width: 100%; aspect-ratio: 3 / 4; background: #1b1530;
  border-radius: 18px; overflow: hidden; margin: 10px 0;
}
.stage video, .stage canvas { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.stage.mirror video, .stage.mirror canvas { transform: scaleX(-1); }
.guide { position: absolute; left: 50%; top: 50%; width: 62%; transform: translate(-50%, -50%); pointer-events: none; }
.stagemsg {
  position: absolute; left: 10px; right: 10px; bottom: 10px; padding: 8px 12px; border-radius: 12px;
  background: rgba(0,0,0,.6); color: #fff; font-size: .95rem; text-align: center;
}

/* result cards */
.cards { display: grid; gap: 12px; }
.card { background: var(--card); border: 2px solid var(--line); border-radius: 16px; padding: 14px 16px; }
.card .k { font-weight: 800; }
.card .v { font-size: 2rem; font-weight: 800; color: var(--purple); line-height: 1.2; }
.card .e { font-size: .92rem; color: var(--muted); }
.card .emoji { font-size: 2.2rem; }
.diagramwrap { background: #fff; border: 2px solid var(--line); border-radius: 16px; padding: 10px; margin-top: 12px; text-align: center; }
#handDiagram { width: 100%; max-width: 280px; height: auto; }

.panel { background: #fff; border: 2px solid var(--line); border-radius: 16px; padding: 4px 16px 14px; margin: 16px 0; }
.tablewrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: .9rem; }
th, td { padding: 6px 4px; border-bottom: 1px solid var(--line); text-align: right; }
th:first-child, td:first-child { text-align: left; }
.formrow { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
label { display: block; font-weight: 700; }
input[type=number], input[type=date] {
  display: block; width: 100%; min-height: 52px; margin-top: 6px; padding: 8px 12px;
  border: 2px solid var(--line); border-radius: 12px; font: inherit; background: #fff; color: var(--ink);
}
.datelabel { margin: 14px 0; }

/* quiz */
.q { background: #fff; border: 2px solid var(--line); border-radius: 16px; padding: 12px 14px; margin: 12px 0; }
.q p { font-weight: 700; }
.choice { flex: 1 1 120px; }
.choice.on { background: var(--test); border-color: var(--test); color: #fff; }
.match { color: var(--good); font-weight: 800; } .nomatch { color: var(--bad); font-weight: 800; }
.bar { position: relative; height: 34px; background: #eee9fb; border-radius: 10px; margin: 10px 0 4px; overflow: hidden; }
.bar .band { position: absolute; top: 0; bottom: 0; background: #c9bdf2; }
.bar .mark { position: absolute; top: 0; bottom: 0; width: 4px; background: var(--story); }
.bar .half { position: absolute; top: 0; bottom: 0; width: 2px; left: 50%; background: var(--ink); opacity: .5; }

/* learn */
details { background: #fff; border: 2px solid var(--line); border-radius: 16px; margin: 12px 0; padding: 0 14px; }
summary { min-height: 52px; display: flex; align-items: center; font-weight: 800; cursor: pointer; }
details[open] { padding-bottom: 10px; }
.staff { border: 0; padding: 0; }
.staff summary { font-weight: 600; color: var(--muted); }

.foot { text-align: center; padding: 16px 16px 28px; padding-bottom: max(28px, env(safe-area-inset-bottom)); }
.disclaimer { display: inline-block; font-weight: 800; background: var(--warn-bg); color: var(--warn-ink); padding: 10px 14px; border-radius: 12px; }
#readingOut, #expOut, #scanResults, #repeatBox { scroll-margin-top: 84px; }
.note:empty { display: none; }

/* ---- Palm & Star Reading ---------------------------------------------- */
.sources { background: #8a5a00; }
.viewtoggle { display: grid; grid-template-columns: 1fr 1fr; gap: 0; margin: 10px 0 14px;
  border: 2px solid var(--purple); border-radius: 14px; overflow: hidden; }
.vt { min-height: 52px; border: 0; background: #fff; color: var(--purple); font: inherit; font-weight: 800; cursor: pointer; }
.vt.on, .vt[aria-selected="true"] { background: var(--purple); color: #fff; }
.vt.science.on, .vt.science[aria-selected="true"] { background: var(--science); }
.vt.culture.on, .vt.culture[aria-selected="true"] { background: var(--story); }
.view { border-radius: 16px; padding: 4px 0; }
.science-view .viewhead { background: #e2f4f3; color: #064b48; border-radius: 12px; padding: 10px 14px; }
.badge { display: inline-block; font-size: .78rem; font-weight: 800; padding: 3px 9px; border-radius: 999px; margin: 4px 4px 2px 0; }
.b-exp { background: #d7f2ef; color: #064b48; }
.b-trad { background: #ffe6d5; color: #7a2e06; }
.b-low { background: #e8e6ee; color: #3d3852; }
.cite { font-size: .85rem; color: var(--muted); margin-top: 4px; }
.clash, .agree { border-radius: 10px; padding: 8px 12px; font-size: .95rem; }
.clash { background: #fff1e6; border-left: 5px solid var(--story); }
.agree { background: #e8f6ec; border-left: 5px solid var(--good); }
.sidebyside { display: grid; gap: 10px; }
@media (min-width: 560px) { .sidebyside { grid-template-columns: 1fr 1fr; } }
.reading-src { background: #faf8ff; border: 1px solid var(--line); border-radius: 12px; padding: 4px 12px; }
.summary { font-size: 1.05rem; font-weight: 600; background: #fff; border-radius: 12px; padding: 10px 14px; border: 2px solid var(--line); }
.linebox { background: #fff; }
.linebox summary .count { margin-left: 8px; font-size: .8rem; background: var(--story); color: #fff; padding: 2px 8px; border-radius: 999px; }
.pq p { font-weight: 700; margin: 10px 0 4px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { min-height: 48px; padding: 8px 14px; border-radius: 24px; border: 2px solid var(--line); background: #fff;
  color: var(--ink); font: inherit; font-size: .95rem; cursor: pointer; text-align: left; }
.chip.on { background: var(--story); border-color: var(--story); color: #fff; font-weight: 700; }
.why { background: #fff; }
.why ul { padding-left: 20px; }
.why li { margin: 6px 0; }
.labels { list-style: none; padding: 0; }
.labels li { margin: 8px 0; }
.palmcard .k { margin-bottom: 2px; }