*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:76px;background:#fff}body{margin:0;font-family:Arial,-apple-system,BlinkMacSystemFont,'Apple SD Gothic Neo','Malgun Gothic',sans-serif;color:#191b1d;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible{outline:2px solid currentColor;outline-offset:6px}[hidden]{display:none!important}.pro-header{position:absolute;z-index:10;inset:0 0 auto;display:flex;justify-content:space-between;align-items:center;padding:16px 5vw;color:#fff;gap:20px}.pro-brand{font-size:18px;letter-spacing:-.06em;font-weight:900;min-height:44px;display:flex;align-items:center}.pro-header nav{display:flex;gap:28px;font-size:14px}.pro-header nav a{display:flex;align-items:center;min-height:44px}.pro-experience{height:370svh;position:relative;background:#030609}.pro-stage{position:sticky;top:0;height:100svh;min-height:560px;overflow:hidden;isolation:isolate;background:#030609;color:#fff;--progress:0;--white:0;--orb-opacity:1;--opening:1;--reveal:0;--ending:0;--ghost:0.18}.pro-atmosphere{position:absolute;inset:0;background:radial-gradient(ellipse at 50% 70%,#18344755,transparent 65%);z-index:-2}.pro-stage:after{content:'';position:absolute;inset:0;z-index:-1;background:#fff;opacity:var(--white);pointer-events:none}.pro-ghost{position:absolute;top:43%;left:50%;transform:translate(-50%,-50%);font-weight:900;font-size:23vw;line-height:.8;letter-spacing:-.095em;color:#48515a;opacity:var(--ghost);white-space:nowrap;z-index:0}#pro-canvas{position:absolute;inset:0;width:100%;height:100%;z-index:1;opacity:var(--orb-opacity);pointer-events:none}.pro-fallback{position:absolute;inset:12% 10% 19%;display:flex;align-items:center;justify-content:center}.pro-fallback img{height:100%;max-width:100%;object-fit:contain;box-shadow:0 20px 80px #0004}.pro-ready .pro-fallback{opacity:0;visibility:hidden;transition:opacity .7s ease,visibility 0s .7s}.pro-opening{position:absolute;left:5vw;bottom:13%;z-index:2;opacity:var(--opening);pointer-events:none}.pro-opening>span{font-size:12px;letter-spacing:.18em;color:#afbac3}.pro-opening h1{font-size:clamp(58px,10vw,170px);font-weight:900;letter-spacing:-.085em;line-height:.9;margin:17px 0}.pro-opening p{font-size:16px;margin:16px 0 0;color:#bbc5cd;letter-spacing:-.02em}.pro-reveal{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;padding-bottom:13vh;z-index:2;opacity:var(--reveal);pointer-events:none}.pro-reveal strong{font-size:clamp(70px,17vw,290px);line-height:.84;letter-spacing:-.09em;font-weight:900}.pro-reveal span{font-size:16px;letter-spacing:.06em;margin-top:24px}.pro-end{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;padding-bottom:13vh;z-index:2;color:#161a1d;opacity:var(--ending);pointer-events:none}.pro-end>span{font-size:16px}.pro-end strong{font-size:clamp(65px,14vw,230px);font-weight:900;letter-spacing:-.09em;line-height:.95;margin-top:14px}.pro-end p{font-size:16px;color:#677079;margin:20px 0 0}.pro-controls{position:absolute;z-index:3;left:5vw;right:5vw;bottom:16px;display:flex;justify-content:space-between;gap:16px;color:#bac3cb;mix-blend-mode:difference}.pro-controls a,.pro-controls button{font-size:14px;min-height:44px;display:flex;align-items:center;gap:16px;padding:8px 0;border:0;background:none;color:inherit;cursor:pointer}.pro-scroll{position:absolute;right:5vw;bottom:16%;display:flex;align-items:center;gap:16px;opacity:var(--opening);font-size:10px;letter-spacing:.16em;color:#afbac3;z-index:2}.pro-scroll i{height:60px;width:1px;background:linear-gradient(#fff,transparent)}.pro-progress{position:absolute;bottom:0;height:2px;left:0;right:0;background:#ffffff15;z-index:4}.pro-progress i{display:block;height:100%;background:#8196a7;transform:scaleX(var(--progress));transform-origin:left}.pro-details{padding:110px 8vw 100px;display:grid;grid-template-columns:1fr 1fr;gap:10vw;align-items:center;max-width:1600px;margin:0 auto;background:#fff}.pro-details figure{margin:0;text-align:center;background:#f5f6f7;padding:40px}.pro-details img{display:block;width:100%;height:auto;max-height:740px;object-fit:contain}.pro-details figcaption{font-size:12px;color:#7b8086;margin:16px 0 0}.pro-eyebrow{font-size:12px;letter-spacing:.11em;color:#7b8086}.pro-product-copy h2{font-size:clamp(55px,7vw,110px);letter-spacing:-.085em;line-height:1;font-weight:900;margin:24px 0 14px}.pro-subject{font-size:clamp(22px,2.4vw,36px);font-weight:700;letter-spacing:-.04em;margin:0}.pro-launch {display:inline-block;padding:12px 0;margin:22px 0;font-size:16px;}.pro-description{font-size:18px;line-height:1.8;color:#68717a;margin:32px 0 40px}.pro-product-copy>a{min-height:44px;display:flex;align-items:center;gap:32px;font-size:14px}.pro-footer{border-top:1px solid #e2e4e7;padding:24px 5vw;display:flex;flex-wrap:wrap;gap:20px 32px;justify-content:space-between;color:#727980;font-size:14px}.pro-footer a{min-height:44px;display:flex;align-items:center}.pro-static .pro-experience{height:100svh;min-height:650px}.pro-static .pro-stage{position:relative;height:100%;min-height:650px}.pro-static .pro-scroll{display:none}.pro-static .pro-opening{bottom:12%;text-shadow:0 2px 25px #000}.pro-static .pro-ghost{display:none}
@media(max-width:700px){.pro-header{padding:12px 20px}.pro-brand{font-size:16px}.pro-header nav{gap:16px;font-size:13px}.pro-experience{height:310svh}.pro-stage{min-height:540px}.pro-opening{left:22px;bottom:17%}.pro-opening h1{font-size:19vw}.pro-opening>span{font-size:10px}.pro-opening p{font-size:14px}.pro-ghost{font-size:26vw;top:42%}.pro-scroll{right:22px;bottom:18%}.pro-scroll span{display:none}.pro-controls{left:22px;right:22px;bottom:12px}.pro-controls a,.pro-controls button{font-size:13px}.pro-reveal{padding-bottom:20vh}.pro-reveal strong{font-size:23vw}.pro-reveal span{font-size:14px;margin-top:18px}.pro-end{padding-bottom:18vh}.pro-end strong{font-size:23vw}.pro-details{padding:60px 24px 70px;grid-template-columns:1fr;gap:40px}.pro-details figure{padding:28px}.pro-product-copy h2{font-size:21vw}.pro-description{font-size:16px}.pro-footer{padding:20px 24px;gap:8px 20px}.pro-fallback{inset:15% 15% 28%}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.pro-experience{height:100svh;min-height:650px}.pro-stage{position:relative;height:100%;min-height:650px}.pro-scroll{display:none}}

/* Present only a fully sized and rendered WebGL frame. */
body:not(.pro-ready) #pro-canvas { opacity:0; }

.pro-experience{height:260svh;background:#000}.pro-stage{background:#000;--cover:0}.pro-atmosphere{background:radial-gradient(ellipse at 50% 54%,#09264233,transparent 60%)}
.pro-opening{left:0;right:0;bottom:16%;text-align:center}.pro-opening h1{font-size:clamp(90px,15vw,200px);letter-spacing:-.055em;color:#e7f6ff;text-shadow:0 0 22px #2788ef88}.pro-opening>span{font-size:14px}
.pro-reveal strong{color:#e7f6ff;text-shadow:0 0 28px #2788ef88;letter-spacing:-.055em}.pro-end{justify-content:center;padding:70px 20px;opacity:var(--cover)}.pro-end img{display:block;height:100%;max-height:75svh;max-width:90%;width:auto;object-fit:contain}.pro-ghost{display:none}
.pro-details{align-items:start}.pro-details figure{aspect-ratio:1;padding:clamp(24px,3vw,48px);display:flex;align-items:center;justify-content:center;border:1px solid #e4e5e8;background:#f4f5f7}.pro-details figure img{width:auto;height:100%;max-width:100%;object-fit:contain}.pro-product-copy h2{margin-top:0}.pro-description p{font-size:16px;line-height:1.9;color:#565961;margin:0 0 22px}
@media(max-width:700px){.pro-experience{height:230svh}.pro-opening{left:0;bottom:20%}.pro-opening h1{font-size:28vw}.pro-details{padding:48px 20px;gap:36px}.pro-header nav{font-size:14px}}
.pro-static .pro-experience{height:100svh}.pro-static .pro-opening{display:none}

/* Physically lit optical glass, dimensional type, and a real book mesh. */
.pro-stage{--caption:1;--book-caption:0;background:#000;min-height:520px}
.pro-experience{height:280svh;background:#000}
.pro-stage:after{display:none}
#pro-canvas{opacity:0;transition:opacity .7s ease}.pro-ready #pro-canvas{opacity:1}
.pro-fallback{opacity:1;transition:opacity .7s ease;pointer-events:none}
@media(min-width:701px){.pro-fallback{inset:0}.pro-fallback img{height:58%;max-height:520px;max-width:80%;box-shadow:none}}
@media(prefers-reduced-motion:reduce){#pro-canvas,.pro-fallback{transition:none}}
.pro-accessible-title{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
.pro-cinematic-caption,.pro-book-caption{position:absolute;z-index:2;left:0;right:0;bottom:13%;margin:0;text-align:center;font-size:14px;letter-spacing:.13em;color:#adbccc;pointer-events:none}
.pro-cinematic-caption{opacity:var(--caption)}.pro-book-caption{opacity:var(--book-caption);font-size:15px;letter-spacing:.25em;color:#d5e6f7}
.pro-scroll{opacity:var(--caption);bottom:14%;font-size:11px}
.pro-controls{mix-blend-mode:normal;color:#b5c4d4}.pro-controls button{font-size:14px}
.pro-static .pro-cinematic-caption,.pro-static .pro-book-caption{display:none}
@media(max-width:700px){.pro-experience{height:250svh}.pro-cinematic-caption,.pro-book-caption{bottom:19%;font-size:14px}.pro-controls a,.pro-controls button{font-size:14px}.pro-scroll{bottom:19%}}
@media(prefers-reduced-motion:reduce){.pro-experience{height:100svh}.pro-stage{height:100svh;position:relative}}

/* Three original covers, aligned on one baseline; no WebGL dependency. */
.pro-experience{height:180svh;background:#080808}
.pro-stage{background:#080808;min-height:500px}
.pro-trio{position:absolute;inset:12% 6% 18%;display:grid;place-items:center;perspective:1400px}
.pro-trio-inner{position:relative;width:min(27vw,310px,39svh);aspect-ratio:891/1260;transform:translateZ(0)}
.pro-trio-book{position:absolute;inset:0;display:block;width:100%;height:100%;object-fit:contain;transform:translateX(calc((var(--i) - 1.5)*59%));z-index:calc(var(--i) + 1);box-shadow:-16px 12px 32px #0008;will-change:transform,opacity;border:1px solid #ffffff15}
.pro-cinematic-caption{opacity:1;bottom:13%;font-family:Pretendard,Arial,sans-serif;font-size:12px;letter-spacing:.18em;color:#b8b8b8}
.pro-scroll{opacity:1;bottom:13%;color:#888}.pro-controls{color:#b8b8b8}
.pro-progress i{background:#aaa}
@media(max-width:700px){.pro-experience{height:165svh}.pro-trio{inset:15% 6% 23%}.pro-trio-inner{width:29vw;max-width:33svh}.pro-cinematic-caption{bottom:18%;font-size:11px}.pro-scroll{bottom:18%}}
@media(prefers-reduced-motion:reduce){.pro-experience{height:100svh}.pro-stage{height:100svh;position:relative}.pro-trio-book{will-change:auto}}
/* Four subject families lead into the complete 12-cover lineup. */
.pro-experience{height:420svh}
.pro-lineup{position:absolute;inset:12% 5% 19%}
.pro-family,.pro-all{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;will-change:transform,opacity}
.pro-family:not([data-family="0"]),.pro-all{opacity:0;visibility:hidden}
.pro-family-books{display:flex;align-items:flex-start;justify-content:center;gap:clamp(12px,3vw,42px);width:100%}
.pro-family figure{margin:0;width:min(25vw,280px,34svh);flex:none}
.pro-family img{width:100%;height:auto;display:block;box-shadow:0 18px 35px #0007;border:1px solid #ffffff12}
.pro-family figcaption{text-align:center;margin-top:20px;font:500 clamp(13px,1.25vw,17px)/1.5 Pretendard,Arial,sans-serif;color:#e5e5e5;word-break:keep-all}
.pro-all img{display:block;width:100%;height:100%;object-fit:contain;max-width:1200px}
@media(max-width:700px){.pro-experience{height:370svh}.pro-lineup{inset:16% 5% 23%}.pro-family-books{gap:3vw}.pro-family figure{width:28vw}.pro-family figcaption{font-size:12px;margin-top:14px;min-height:36px}.pro-all{inset:-3% -2%}}
@media(prefers-reduced-motion:reduce){.pro-experience{height:100svh}.pro-family{display:none}.pro-all{opacity:1;visibility:visible}}