:root {
  --paper: #F6F3EC;
  --ink: #1F1E1C;
  --soft: #66625A;
  --hair: #CDC6B8;
  --seal: #C8402A;
  --serif: 'Shippori Mincho', 'Hiragino Mincho ProN', Georgia, serif;
  --sans: 'Zen Kaku Gothic New', 'Hiragino Sans', system-ui, sans-serif;
}
* { box-sizing: border-box; }
html { background: var(--paper); }
body { margin: 0; color: var(--ink); font: 400 17px/1.7 var(--sans); }
[hidden] { display: none !important; }
.page { max-width: 1080px; margin: 0 auto; padding: 0 28px 64px; }

.mast { display: flex; justify-content: space-between; align-items: baseline; padding: 22px 0 14px; border-bottom: 2px solid var(--ink); }
.mark { font: 700 21px var(--serif); letter-spacing: .02em; }
.tag { font: 500 14px var(--serif); color: var(--soft); letter-spacing: .12em; }

h1 { font: 700 clamp(32px, 4.6vw, 52px)/1.3 var(--serif); margin: 52px 0 18px; max-width: 21em; letter-spacing: .005em; }
h2 { font: 700 26px/1.4 var(--serif); margin: 0 0 12px; }
h3 { font: 700 19px/1.4 var(--serif); margin: 34px 0 10px; }
.lede { max-width: 40em; margin: 0 0 34px; color: #36342F; }
.note { font-size: 14.5px; color: var(--soft); margin: 10px 0 0; }
.label { font-size: 14px; font-weight: 500; color: var(--soft); margin: 0; letter-spacing: .03em; }

button, .pick { font: 500 16px var(--sans); color: var(--paper); background: var(--ink); border: 1px solid var(--ink); padding: 11px 22px; cursor: pointer; }
button:disabled { color: var(--soft); background: transparent; border-color: var(--hair); cursor: default; }
button:focus-visible, input:focus-visible, .drop:focus-within { outline: 2px solid var(--seal); outline-offset: 2px; }

.drops { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--ink); }
.drop { position: relative; display: flex; flex-direction: column; min-height: 232px; padding: 12px 16px 16px; cursor: pointer; }
.drop + .drop { border-left: 1px solid var(--ink); }
.drop.over { background: #ECE7DB; }
.drop-name { font: 700 16px var(--serif); }
.drop-hint { margin: auto; color: var(--soft); font-size: 15px; }
.drop canvas { max-width: 100%; max-height: 300px; margin: 10px auto 0; display: block; }
.drop input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }

.go { display: flex; align-items: center; gap: 20px; margin-top: 22px; min-height: 48px; }
#status { margin: 0; color: var(--soft); }
.examples { margin-top: 44px; padding-top: 22px; border-top: 1px solid var(--hair); }
.examples h2 { font-size: 19px; }
.example-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.example { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; padding: 0; color: var(--ink); background: none; border: 0; text-align: left; font-weight: 400; }
.example img { width: 100%; aspect-ratio: 3 / 3.9; object-fit: cover; display: block; }
.example span { grid-column: 1 / 3; padding-top: 7px; font-size: 15px; }

.slip { margin-top: 56px; padding-top: 26px; border-top: 2px solid var(--ink); }
.slip-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 28px; }
#headline { font-size: clamp(34px, 5vw, 56px); line-height: 1.2; margin: 2px 0 10px; }
#explain { max-width: 37em; margin: 0; }
.seal { flex: none; width: 104px; height: 104px; display: flex; align-items: center; justify-content: center; border: 3px solid var(--seal); color: var(--seal); font: 700 17px/1.2 var(--serif); text-align: center; transform: rotate(-4deg); letter-spacing: .04em; }

.sums { display: grid; grid-template-columns: repeat(3, 1fr); margin: 30px 0 34px; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.sums > div { padding: 12px 16px 14px; }
.sums > div + div { border-left: 1px solid var(--hair); }
.num { font: 700 38px/1.2 var(--serif); margin: 4px 0 0; font-variant-numeric: tabular-nums; }
.num.strong { color: var(--seal); }

.two { display: grid; grid-template-columns: minmax(0, 46fr) minmax(0, 54fr); gap: 40px; align-items: start; }
.view-tabs { display: flex; margin-bottom: 10px; }
.view-tabs button { background: transparent; color: var(--ink); padding: 7px 16px; font-size: 15px; }
.view-tabs button + button { border-left: 0; }
.view-tabs button[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
.stage { position: relative; aspect-ratio: 3 / 3.9; overflow: hidden; background: #DDD7CA; }
.stage img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
#divider { position: absolute; top: 0; bottom: 0; width: 2px; background: var(--paper); }
.side { position: absolute; top: 10px; padding: 1px 8px; font-size: 14px; color: var(--paper); background: rgba(31, 30, 28, .78); }
.side.l { left: 10px; } .side.r { right: 10px; }
#wipe { width: 100%; margin: 12px 0 0; accent-color: var(--ink); }

table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
th { text-align: left; font-size: 14px; font-weight: 500; color: var(--soft); padding: 4px 0; border-bottom: 1px solid var(--ink); }
td { padding: 7px 0; border-bottom: 1px solid var(--hair); }
.r { text-align: right; }
.reading h3:first-child { margin-top: 2px; }
dl { display: grid; grid-template-columns: 96px 1fr; margin: 0; }
dt, dd { margin: 0; padding: 6px 0; border-bottom: 1px solid var(--hair); }
dt { font-weight: 500; }

.next { margin-top: 12px; }
.next ol, .method ol { margin: 0; padding-left: 1.3em; max-width: 44em; }
.next li, .method li { margin-bottom: 7px; }
.selfie { margin-top: 10px; }
.selfie > p { max-width: 44em; margin: 0 0 12px; }
.pick { position: relative; display: inline-block; }
.pick input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
#selfie-table { margin-top: 14px; max-width: 640px; }
#selfie-table th:last-child, #selfie-table td:last-child { padding-left: 32px; }

.method { margin-top: 72px; padding-top: 26px; border-top: 2px solid var(--ink); }
.method h2 + ol { margin-bottom: 34px; }
.method p { max-width: 44em; }
#study { max-width: 780px; margin-top: 14px; }

.foot { display: flex; justify-content: space-between; margin-top: 60px; padding-top: 14px; border-top: 1px solid var(--hair); font-size: 14.5px; color: var(--soft); }
.foot a { color: inherit; }

@media (max-width: 820px) {
  .two { grid-template-columns: 1fr; }
  .example-row { grid-template-columns: 1fr; }
  .sums { grid-template-columns: 1fr; }
  .sums > div + div { border-left: 0; border-top: 1px solid var(--hair); }
  .seal { width: 78px; height: 78px; font-size: 13px; }
}