*{box-sizing:border-box}
:root{color-scheme:light dark;--bg:#f6f3ed;--fg:#1c1b19;--muted:#5d5a55;--line:#e3ddd2;--card:#fffdf9;--accent:#274a7a;--accent-ink:#274a7a;--on-accent:#ffffff;
--tint:rgba(28,27,25,.05);--tint-strong:rgba(28,27,25,.1);--menu-shadow:0 26px 60px -18px rgba(60,40,20,.35);
--print-shadow:0 2px 4px rgba(60,40,20,.18),0 30px 60px -18px rgba(60,40,20,.45);
--font:-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Roboto,Helvetica,Arial,sans-serif;
--display:ui-serif,"New York","Iowan Old Style","Palatino Linotype",Georgia,serif}
@media (prefers-color-scheme:dark){:root{--bg:#0e0d0c;--fg:#f3f0ea;--muted:#aaa59d;--line:#2c2a27;--card:#1b1a18;--accent:#8fbee6;--accent-ink:#8fbee6;--on-accent:#0e1a2a;
--tint:rgba(243,240,234,.06);--tint-strong:rgba(243,240,234,.12);--menu-shadow:0 26px 60px -18px rgba(0,0,0,.7);
--print-shadow:0 2px 6px rgba(0,0,0,.35),0 34px 70px -16px rgba(0,0,0,.65)}}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--font);font-size:19px;line-height:1.55}
a{color:var(--fg);text-underline-offset:3px}
.skip{position:absolute;left:-999px}.skip:focus{left:16px;top:16px;background:var(--card);padding:8px 12px;z-index:9}
.vh{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}
header{display:flex;justify-content:space-between;align-items:center;padding:24px 0}
.brand{display:flex;align-items:center;gap:12px;font-weight:700;font-size:26px;text-decoration:none}
.brand img{width:40px;height:40px;border-radius:10px}
header nav{display:flex;align-items:center;gap:20px;font-size:17px}header nav a{text-decoration:none;color:var(--muted)}header nav a:hover{color:var(--fg)}
.hero{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:64px;align-items:center;padding:32px 0 80px}
.eyebrow{margin:0 0 12px;font-size:17px;color:var(--accent-ink);font-weight:600}
h1,h2{font-family:var(--display)}
h1{margin:0;font-size:clamp(42px,6.4vw,70px);line-height:1.04;letter-spacing:-.015em;font-weight:700}
h2{font-size:clamp(28px,3.4vw,36px);line-height:1.15;margin:0 0 16px;letter-spacing:-.005em;font-weight:700}
.lead{font-size:22px;margin:24px 0 28px;max-width:30em;color:var(--muted)}
.store{display:inline-flex;text-decoration:none;align-items:center;height:56px;padding:0 26px;border-radius:28px;background:var(--accent);color:var(--on-accent);font-weight:700;font-size:18px}
span.store{opacity:.92}
.facts{margin:20px 0 0;color:var(--muted);font-size:17px}
/* The demo print: turns over on a tap (the card) or with the button; the back's handwriting is read below. */
.print-demo{margin:0;display:grid;justify-items:center;gap:18px}
.card{position:relative;width:min(100%,520px);aspect-ratio:1000/714;perspective:1800px;cursor:pointer;-webkit-tap-highlight-color:transparent}
.card .inner{position:absolute;inset:0;transform:rotate(-2.2deg);transform-style:preserve-3d;transition:transform .8s cubic-bezier(.2,.75,.25,1)}
.card img{position:absolute;inset:0;width:100%;height:100%;border-radius:4px;box-shadow:var(--print-shadow);-webkit-backface-visibility:hidden;backface-visibility:hidden}
.card .back{transform:rotateY(180deg)}
.card.flipped .inner{transform:rotate(1.6deg) rotateY(180deg)}
@media (hover:hover){.card:hover .inner{transform:rotate(-2.2deg) rotateY(-10deg)}.card.flipped:hover .inner{transform:rotate(1.6deg) rotateY(190deg)}}
.flip{display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 18px;border-radius:22px;border:1px solid var(--line);background:var(--tint);color:var(--fg);font:600 16px/1 var(--font);cursor:pointer}
.flip:hover{background:var(--tint-strong)}
.flip:focus-visible,.card:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.flip svg{width:18px;height:18px}
.flip[hidden]{display:none}
.reads{margin:0;max-width:400px;text-align:center;color:var(--muted);font-size:16px;line-height:1.5}
.chips{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin:0;padding:0;list-style:none}
.chips li{display:inline-flex;align-items:center;gap:7px;padding:7px 13px;border-radius:999px;background:var(--card);border:1px solid var(--line);font-size:15px;font-weight:600}
.chips svg{width:16px;height:16px;color:var(--accent-ink);flex:none}
section{padding:64px 0;border-top:1px solid var(--line)}
.feature{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:24px 56px;align-items:start}
.feature h2{margin:0}
.feature .text>p{margin:0 0 18px;font-size:21px;color:var(--fg)}
.points{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.points li{position:relative;padding-left:26px;color:var(--muted)}
.points li::before{content:"";position:absolute;left:2px;top:.62em;width:9px;height:9px;border-radius:50%;background:var(--accent)}
.family{margin:32px 0 0;padding:28px 12px 20px;background:var(--card);border-radius:18px;box-shadow:var(--print-shadow)}
.family ul{display:flex;justify-content:center;flex-wrap:wrap;gap:12px 22px;list-style:none;padding:0;margin:0;position:relative}
.family ul+ul{margin-top:34px}.family ul+ul::before{content:"";position:absolute;top:-28px;left:50%;height:22px;border-left:2px solid var(--line)}
.family li{display:flex;flex-direction:column;align-items:center;width:92px;text-align:center}
.family img{width:72px;height:72px;border-radius:50%;object-fit:cover;box-shadow:0 1px 3px rgba(60,40,20,.25);margin-bottom:6px}
.family span{font-family:var(--display);font-size:16px;line-height:1.2}.family small{font-size:13px;color:var(--muted)}
.family figcaption{margin-top:20px;text-align:center;font-size:15px;color:var(--muted)}
.strip{margin:32px 0 0}
.strip div{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.strip img{width:100%;height:auto;aspect-ratio:4/5;border-radius:12px;display:block;object-fit:cover}
.strip figcaption,.quote figcaption{margin-top:12px;color:var(--muted);font-size:15px}
.quote{margin:32px 0 0;padding:22px 24px;border-radius:20px;background:var(--card);border:1px solid var(--line)}
.quote svg{display:block;width:100%;max-width:300px;height:36px;color:var(--accent)}
.quote blockquote{margin:14px 0 0;font-family:var(--display);font-style:italic;font-size:22px;line-height:1.4}
.pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.pair article{background:var(--card);border:1px solid var(--line);border-radius:24px;padding:30px}
.pair h2{font-size:28px}
.pair p,.why p{margin:0;color:var(--muted)}.pair p+p,.why p+p{margin-top:14px}
.why p{max-width:36em;font-size:20px}
.article{max-width:720px;padding:32px 0 72px}.article h1{font-size:clamp(40px,6vw,58px);margin-bottom:24px}
.article h2{font-size:24px;margin:36px 0 8px}.article p{margin:0 0 14px;color:var(--muted)}.article p a{color:var(--fg)}
/* Footer: brand, tagline, made by; links and the language menu on the right; the sample-photo note below on the home page. */
.site-footer{border-top:1px solid var(--line);padding:40px 0;color:var(--muted);font-size:15px;line-height:1.5}
.site-footer p{margin:0}
.site-footer a{color:inherit;text-decoration:none}
.footer-top{display:flex;justify-content:space-between;align-items:flex-start;gap:24px 40px;flex-wrap:wrap}
.footer-id{display:grid;gap:6px;max-width:420px}
.footer-brand{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:16px;margin-bottom:4px;justify-self:start}
.footer-brand img{width:20px;height:20px;border-radius:5px;box-shadow:0 0 0 1px var(--line);filter:grayscale(1);opacity:.5;transition:filter .2s,opacity .2s}
.footer-brand:hover img{filter:none;opacity:1}
.footer-made a{text-decoration:underline;text-decoration-color:transparent;text-underline-offset:3px;transition:color .2s,text-decoration-color .2s}
.footer-made a:hover,.footer-made a:focus-visible{color:var(--fg);text-decoration-color:currentColor}
.footer-side{display:flex;flex-direction:column;align-items:flex-end;gap:16px}
.footer-links{display:flex;flex-wrap:wrap;gap:20px}
.footer-links a:hover{color:var(--fg)}
/* Language: a pill in the footer that opens a menu upwards. Plain links inside, so it works without JavaScript too. */
.language{position:relative;display:inline-block}
.language summary{display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 14px 0 12px;border-radius:999px;
background:var(--tint);border:1px solid var(--line);color:var(--fg);font:600 16px/1 var(--font);white-space:nowrap;
list-style:none;cursor:pointer;user-select:none;-webkit-user-select:none;transition:background .2s,border-color .2s}
.language summary::-webkit-details-marker{display:none}
.language summary:hover,.language[open] summary{background:var(--tint-strong)}
.language summary:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.language summary svg{width:18px;height:18px;flex:none;color:var(--muted)}
.language summary .chevron{width:13px;height:13px;margin-left:1px;transition:transform .2s}
.language[open] summary .chevron{transform:rotate(180deg)}
.language ul{position:absolute;right:0;bottom:calc(100% + 10px);z-index:20;min-width:200px;margin:0;padding:6px;list-style:none;
display:grid;gap:2px;background:var(--card);border:1px solid var(--line);border-radius:20px;box-shadow:var(--menu-shadow);transform-origin:bottom right}
.language[open] ul{animation:language-in .16s cubic-bezier(.2,.8,.2,1)}
@keyframes language-in{from{opacity:0;transform:translateY(6px) scale(.98)}}
.site-footer .language a{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:10px 13px;border-radius:14px;color:var(--fg);font-size:17px}
.site-footer .language a:hover,.site-footer .language a:focus-visible{background:var(--tint);color:var(--fg);outline:none}
.language a[aria-current]{font-weight:650}
.language a svg{width:18px;height:18px;flex:none;color:var(--accent-ink)}
/* Japanese and Korean: system CJK fonts (also for headings), no negative tracking, break headlines between words/phrases only. */
html:lang(ja){--font:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans JP","Segoe UI",sans-serif;--display:var(--font)}
html:lang(ko){--font:-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Noto Sans KR","Malgun Gothic","Segoe UI",sans-serif;--display:var(--font)}
:lang(ja) h1,:lang(ja) h2,:lang(ko) h1,:lang(ko) h2{letter-spacing:0;line-height:1.25}
:lang(ja) h1,:lang(ko) h1{font-size:clamp(36px,5.2vw,56px)}
:lang(ja) .quote blockquote,:lang(ko) .quote blockquote{font-style:normal}
:lang(ko) h1,:lang(ko) h2,:lang(ko) h3,:lang(ko) p,:lang(ko) li{word-break:keep-all;overflow-wrap:anywhere}
:lang(ja) h1,:lang(ja) h2,:lang(ja) .eyebrow,:lang(ja) .facts{word-break:keep-all;overflow-wrap:anywhere}
@media (prefers-reduced-motion:reduce){.card .inner{transition:none}.language[open] ul{animation:none}.language summary .chevron{transition:none}}
/* Before/after: the scan underneath, Arv's print on top from the handle to the right; drag (or use the arrow keys). */
.compare-section h2{max-width:22em}
.lead-small{margin:0;max-width:40em;color:var(--muted);font-size:20px}
.compares{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:24px;margin-top:32px;align-items:start}
.compare:first-child{grid-row:span 2}
.compare{margin:0}
.compare .frame{position:relative;--pos:50%;border-radius:3px;overflow:hidden;box-shadow:var(--print-shadow);touch-action:pan-y}
.compare img{position:absolute;inset:0;width:100%;height:100%;display:block}
.compare img.after{clip-path:inset(0 0 0 var(--pos))}
.compare .handle{position:absolute;top:0;bottom:0;left:var(--pos);width:2px;margin-left:-1px;background:#fff;box-shadow:0 0 8px rgba(0,0,0,.45);pointer-events:none}
.compare .handle::after{content:"";position:absolute;top:50%;left:50%;width:34px;height:34px;margin:-17px 0 0 -17px;border-radius:50%;
background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23274a7a' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M9 6l-6 6 6 6M15 6l6 6-6 6'/%3E%3C/svg%3E") center/18px no-repeat;box-shadow:0 2px 8px rgba(0,0,0,.35)}
.compare input{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;cursor:ew-resize}
.compare input:focus-visible+*,.compare .frame:has(input:focus-visible){outline:3px solid var(--accent);outline-offset:3px}
.compare .tag{position:absolute;bottom:10px;padding:4px 10px;border-radius:999px;background:rgba(0,0,0,.55);color:#fff;font-size:13px;font-weight:600;pointer-events:none}
.compare .tag.before{left:10px}.compare .tag.after{right:10px}
.hint{margin:16px 0 0;color:var(--muted);font-size:15px}
@media (max-width:860px){.feature{grid-template-columns:1fr}.pair{grid-template-columns:1fr}.compares{grid-template-columns:1fr}.compare:first-child{grid-row:auto}}
@media (max-width:760px){.hero{grid-template-columns:1fr;padding:16px 0 56px;gap:44px}header nav .hide-sm{display:none}.footer-side{align-items:flex-start}.language ul{right:auto;left:0;transform-origin:bottom left}body{font-size:18px}.lead{font-size:20px}section{padding:48px 0}.card{width:min(86%,360px)}.feature .text>p{font-size:19px}.why p{font-size:19px}.pair article{padding:24px}.strip div{gap:8px}}