:root{--text:#6b6375;--text-h:#08060d;--bg:#fff;--border:#e5e4e7;--code-bg:#f4f3ec;--accent:#aa3bff;--accent-bg:#aa3bff1a;--accent-border:#aa3bff80;--social-bg:#f4f3ec80;--shadow:#0000001a 0 10px 15px -3px, #0000000d 0 4px 6px -2px;--sans:system-ui, "Segoe UI", Roboto, sans-serif;--heading:system-ui, "Segoe UI", Roboto, sans-serif;--mono:ui-monospace, Consolas, monospace;font:18px/145% var(--sans);letter-spacing:.18px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}@media (width<=1024px){:root{font-size:16px}}@media 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#3c1e0a59);width:100%;height:100%;display:block;inset:0}.flap-wrap{z-index:5;perspective:1200px;pointer-events:none;transition:transform 1.2s cubic-bezier(.55,0,.85,.55),opacity .9s .25s,z-index;inset:0}.flap{transform-origin:50% 0;width:100%;height:55.3%;transform-style:preserve-3d;transition:transform .95s cubic-bezier(.3,.7,.25,1);position:absolute;top:0;left:0}.flap-face{backface-visibility:hidden;width:100%;height:100%;display:block;position:absolute;inset:0}.flap-inner,.is-open .flap{transform:rotateX(180deg)}.is-open .flap-wrap{z-index:1;transition:transform 1.2s cubic-bezier(.55,0,.85,.55),opacity .9s .25s,z-index 0s .35s}.seal{z-index:8;cursor:pointer;touch-action:manipulation;filter:drop-shadow(0 6px 7px #1e050a80);background:0 0;border:0;border-radius:50%;width:clamp(56px,14vw,74px);height:clamp(56px,14vw,74px);padding:0;transition:transform .55s,opacity .5s;animation:2.4s ease-in-out infinite seal-beat;position:absolute;top:55%;left:50%;transform:translate(-50%,-50%)}.seal img{pointer-events:none;width:100%;height:100%;display:block}.seal:focus-visible{outline-offset:4px;outline:3px solid #ffe9b8}.is-open .seal{opacity:0;pointer-events:none;animation:none;transform:translate(-50%,-50%)scale(1.5)}@keyframes seal-beat{0%,to{transform:translate(-50%,-50%)scale(1)}50%{transform:translate(-50%,-50%)scale(1.07)}}.letter{z-index:2;box-sizing:border-box;width:calc(var(--ew) * .9);height:calc(var(--eh) * .88);transform:translate(-50%, -50%) translateY(calc(var(--eh) * .02));color:var(--ink);text-align:center;background:#fbf4e2 url(/images/letter-paper.jpg) 50%/cover;border-radius:4px;transition:transform 1.3s cubic-bezier(.22,.8,.25,1),width 1.5s cubic-bezier(.22,.8,.25,1),height 1.5s cubic-bezier(.22,.8,.25,1);position:absolute;top:50%;left:50%;overflow:hidden;box-shadow:0 6px 18px #00000047}.is-out .letter{transform:translate(-50%, -50%) translateY(calc(var(--eh) * -.4))}.is-read .letter{-webkit-overflow-scrolling:touch;width:min(88vw,460px);height:min(76dvh,620px);overflow-y:auto;transform:translate(-50%,-50%)}.letter-mark{padding-top:calc(var(--eh) * .12);color:var(--seal-a);opacity:.8;font-size:clamp(20px,5vw,28px);transition:opacity .5s}.is-read .letter-mark{display:none}.letter-content{opacity:0;padding:clamp(28px,7vw,44px) clamp(22px,6vw,40px) clamp(28px,6vw,40px);transition:opacity 1s .7s}.is-read .letter-content{opacity:1}.stage:not(.is-read) .letter-content{position:absolute;inset:0;overflow:hidden}.letter-eyebrow{letter-spacing:1px;color:var(--seal-a);margin:0 0 6px;font-size:14px;font-style:italic}.letter-date{letter-spacing:2px;color:#7a6a5c;margin:0 0 clamp(22px,5vh,40px);font-size:13px}.letter-content h1{margin:0 0 clamp(22px,5vh,36px);font-size:clamp(28px,7vw,38px);font-weight:400}.letter-content p{word-break:keep-all;margin:0 0 20px;font-size:clamp(16px,4.2vw,18px);line-height:2}.letter-content .letter-eyebrow,.letter-content 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