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.24s}.bchip:hover{color:var(--ink);border-color:var(--ink);transform:translateY(-2px)}.bchip.is-on{background:var(--ink);border-color:var(--ink);color:var(--color-base-white)}.bchip:focus-visible{outline:2px solid var(--accent);outline-offset:3px}.book-field--stamps{margin-bottom:clamp(24px,4vh,36px)}.book-stamps{flex-wrap:wrap;gap:clamp(12px,1.8vw,22px);display:flex}.bstamp{cursor:none;filter:drop-shadow(0 6px 10px #1b1b3929);background:0 0;border:0;width:clamp(104px,13vw,132px);padding:0;transition:transform .32s cubic-bezier(.22,1,.36,1),filter .32s;position:relative;rotate:-1.5deg}.bstamp:nth-child(2n){rotate:1.8deg}.bstamp:hover{filter:drop-shadow(0 14px 20px #1b1b3942);transform:translateY(-6px)scale(1.04)}.bstamp:focus-visible{outline:2px solid var(--accent);outline-offset:6px}.bstamp .bstamp-face{--s:7px;--r:3.1px;aspect-ratio:4/5;background-color:var(--c);color:var(--sink);flex-direction:column;justify-content:center;align-items:center;gap:3px;padding:12px 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svg{width:100%;height:auto;display:block}.book-receipt-paper h3{font-family:var(--display);letter-spacing:-.02em;margin:10px 0 12px;font-size:clamp(30px,4.2vw,46px);font-weight:400;line-height:1}.book-receipt-paper p{font:400 clamp(12px, 1.1vw, 13.5px) / 1.75 var(--mono);color:var(--dim);margin:0 0 20px}.book-receipt-paper a{color:var(--accent)}.book-receipt-lines{border-top:1px dashed color-mix(in srgb, var(--ink) 24%, transparent);margin:0 0 22px}.book-receipt-lines div{border-bottom:1px dashed color-mix(in srgb, var(--ink) 24%, transparent);justify-content:space-between;gap:16px;padding:9px 0;display:flex}.book-receipt-lines dt{font:500 10px / 1.4 var(--mono);letter-spacing:.18em;text-transform:uppercase;color:var(--dim)}.book-receipt-lines dd{font:500 12px / 1.4 var(--mono);text-align:right;color:var(--ink);margin:0}.book-receipt-actions{flex-wrap:wrap;gap:10px;display:flex}@media (width<=860px){.book-top{grid-template-columns:1fr;align-items:start}.book-top 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