:root {
    --ink: #f4f7fa;
    --muted: #77818e;
    --yellow: #f6d20b;
    --cyan: #58d8ff;
    --red: #ff4d5d;
    --line: rgba(255,255,255,.105);
    --panel: rgba(7,10,15,.72);
    --book-tilt-x: -1deg;
    --book-tilt-y: 0deg;
    --pointer-x: 50%;
    --pointer-y: 50%;
    --page-progress: 0%;
    color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html, body { min-width: 320px; min-height: 100%; margin: 0; }
html { background: #030507; }
body {
    overflow: hidden;
    background: #030507;
    color: var(--ink);
    font-family: "Manrope", system-ui, sans-serif;
    -webkit-font-smoothing: antialiased;
}
button { color: inherit; font: inherit; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

.catalog-universe,
.catalog-noise { position: fixed; inset: 0; pointer-events: none; }
.catalog-universe { overflow: hidden; background: radial-gradient(circle at var(--pointer-x) var(--pointer-y), rgba(88,216,255,.075), transparent 22%), linear-gradient(125deg,#020304 0%,#070b10 48%,#030507 100%); }
.catalog-universe::before,
.catalog-universe::after { content: ""; position: absolute; border-radius: 50%; filter: blur(2px); }
.catalog-universe::before { left: -15vw; top: -30vw; width: 58vw; height: 58vw; border: 1px solid rgba(88,216,255,.12); box-shadow: 0 0 140px rgba(88,216,255,.06), inset 0 0 140px rgba(88,216,255,.025); animation: orbit-drift 18s ease-in-out infinite alternate; }
.catalog-universe::after { right: -18vw; bottom: -35vw; width: 68vw; height: 68vw; border: 1px solid rgba(246,210,11,.09); box-shadow: 0 0 180px rgba(246,210,11,.045), inset 0 0 160px rgba(246,210,11,.02); animation: orbit-drift 14s ease-in-out infinite alternate-reverse; }
.catalog-universe__aurora { position: absolute; inset: -30%; background: conic-gradient(from 210deg at 55% 48%, transparent 0 15%, rgba(88,216,255,.095) 18%, transparent 22% 47%, rgba(246,210,11,.075) 50%, transparent 55% 78%, rgba(255,77,93,.055) 81%, transparent 87%); filter: blur(80px); animation: aurora-turn 28s linear infinite; }
.catalog-universe__grid { position: absolute; left: -30%; right: -30%; bottom: -49%; height: 82%; opacity: .52; background-image: linear-gradient(rgba(88,216,255,.14) 1px, transparent 1px), linear-gradient(90deg,rgba(88,216,255,.105) 1px,transparent 1px); background-size: 72px 72px; transform: perspective(650px) rotateX(65deg); mask-image: linear-gradient(to bottom,transparent 0,#000 28%,#000 62%,transparent 90%); animation: grid-travel 8s linear infinite; }
.catalog-universe__beam { position: absolute; top: -30%; left: -12%; width: 14%; height: 150%; opacity: .28; background: linear-gradient(90deg,transparent,rgba(88,216,255,.28),transparent); filter: blur(25px); transform: rotate(15deg); animation: beam-pass 9s ease-in-out infinite; }
.catalog-universe__word { position: absolute; right: -1.5vw; bottom: -4vh; color: transparent; font-family: "Space Grotesk",sans-serif; font-size: clamp(120px,20vw,360px); font-weight: 700; letter-spacing: -.11em; line-height: .72; -webkit-text-stroke: 1px rgba(255,255,255,.025); transform: skewX(-8deg); }
.catalog-noise { z-index: 30; opacity: .035; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 160 160' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.83' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.7'/%3E%3C/svg%3E"); mix-blend-mode: soft-light; }
@keyframes orbit-drift { to { transform: translate3d(5vw,3vw,0) scale(1.08); } }
@keyframes aurora-turn { to { transform: rotate(360deg) scale(1.05); } }
@keyframes grid-travel { to { background-position: 0 72px,72px 0; } }
@keyframes beam-pass { 0%,12% { transform: translateX(-25vw) rotate(15deg); opacity: 0; } 28%,62% { opacity: .3; } 82%,100% { transform: translateX(125vw) rotate(15deg); opacity: 0; } }

.catalog-shell { position: relative; z-index: 2; display: grid; grid-template-rows: 76px minmax(0,1fr); height: 100svh; }
.catalog-header { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 28px; padding: 0 clamp(18px,2.2vw,40px); border-bottom: 1px solid var(--line); background: rgba(3,5,8,.58); backdrop-filter: blur(22px) saturate(1.2); }
.catalog-header::after { content: ""; position: absolute; top: 75px; left: 0; width: var(--page-progress); height: 1px; background: linear-gradient(90deg,var(--yellow),var(--cyan)); box-shadow: 0 0 14px rgba(88,216,255,.7); transition: width 550ms cubic-bezier(.2,.8,.2,1); }
.catalog-brand { justify-self: start; display: inline-flex; align-items: center; gap: 12px; }
.catalog-brand__mark { position: relative; display: grid; width: 42px; height: 42px; place-items: center; border: 1px solid rgba(246,210,11,.44); clip-path: polygon(12px 0,100% 0,100% calc(100% - 12px),calc(100% - 12px) 100%,0 100%,0 12px); background: rgba(246,210,11,.055); }
.catalog-brand__mark::before { content: ""; position: absolute; inset: 4px; border: 1px solid rgba(255,255,255,.08); }
.catalog-brand__mark img { width: 28px; filter: brightness(0) invert(1); }
.catalog-brand__name { display: flex; gap: 4px; font-family: "Space Grotesk",sans-serif; font-size: 14px; font-weight: 700; letter-spacing: -.035em; text-transform: uppercase; }
.catalog-brand__name em { color: var(--yellow); font-style: normal; }
.catalog-brand__home { display: none; color: rgba(255,255,255,.72); font-size: 10px; font-weight: 800; letter-spacing: .04em; }
.catalog-mobile-nav { display: none; }
.catalog-header__title { text-align: center; }
.catalog-header__title span { display: block; color: var(--yellow); font-size: 7px; font-weight: 800; letter-spacing: .3em; text-transform: uppercase; }
.catalog-header__title strong { display: block; margin-top: 5px; font-family: "Space Grotesk",sans-serif; font-size: 15px; font-weight: 500; letter-spacing: .04em; text-transform: uppercase; }
.catalog-header__nav { justify-self: end; display: flex; align-items: center; gap: 18px; }
.catalog-header__nav a { position: relative; padding: 9px 0; color: rgba(255,255,255,.54); font-size: 9px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; transition: color 180ms ease; }
.catalog-header__nav a::after { content: ""; position: absolute; right: 0; bottom: 4px; left: 0; height: 1px; background: var(--cyan); transform: scaleX(0); transform-origin: right; transition: transform 220ms ease; }
.catalog-header__nav a:hover { color: #fff; }
.catalog-header__nav a:hover::after { transform: scaleX(1); transform-origin: left; }
.catalog-header__status { display: inline-flex; align-items: center; gap: 7px; border-left: 1px solid var(--line); padding-left: 18px; color: rgba(255,255,255,.66); font-size: 8px; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.catalog-header__status i { width: 6px; height: 6px; border-radius: 50%; background: #5af0a8; box-shadow: 0 0 12px #5af0a8; animation: status-pulse 2s ease-in-out infinite; }
@keyframes status-pulse { 50% { opacity: .35; transform: scale(.7); } }

.catalog-layout { display: grid; min-height: 0; grid-template-columns: clamp(260px,20.5vw,340px) minmax(520px,1fr) clamp(235px,18vw,300px); }
.catalog-library,
.catalog-inspector { position: relative; min-height: 0; overflow: hidden; background: rgba(4,7,10,.48); backdrop-filter: blur(18px); }
.catalog-library { border-right: 1px solid var(--line); padding: clamp(24px,3vh,42px) clamp(17px,1.8vw,30px) 24px; }
.catalog-library::before,
.catalog-inspector::before { content: ""; position: absolute; top: 0; width: 1px; height: 90px; background: linear-gradient(to bottom,var(--cyan),transparent); box-shadow: 0 0 16px rgba(88,216,255,.55); }
.catalog-library::before { right: -1px; }
.catalog-inspector::before { left: -1px; }
.library-heading { display: flex; align-items: center; gap: 14px; }
.section-index { display: grid; width: 37px; height: 37px; flex: 0 0 auto; place-items: center; border: 1px solid rgba(246,210,11,.4); color: var(--yellow); font-family: "Space Grotesk",sans-serif; font-size: 9px; clip-path: polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px); }
.library-heading small,
.inspector-heading small { color: rgba(255,255,255,.37); font-size: 7px; font-weight: 800; letter-spacing: .22em; text-transform: uppercase; }
.library-heading h1 { margin: 3px 0 0; font-family: "Space Grotesk",sans-serif; font-size: clamp(28px,2.4vw,39px); font-weight: 500; letter-spacing: -.065em; line-height: .95; }
.library-intro { width: 92%; margin: 22px 0 24px; color: rgba(255,255,255,.4); font-size: 10px; line-height: 1.7; }
.catalog-list { display: grid; gap: 11px; }
.catalog-option { --accent: var(--yellow); position: relative; display: grid; grid-template-columns: 76px minmax(0,1fr); align-items: center; gap: 14px; width: 100%; min-height: 105px; overflow: hidden; border: 1px solid var(--line); padding: 9px; background: linear-gradient(110deg,rgba(255,255,255,.045),rgba(255,255,255,.012)); text-align: left; cursor: pointer; clip-path: polygon(0 0,calc(100% - 16px) 0,100% 16px,100% 100%,16px 100%,0 calc(100% - 16px)); transition: transform 280ms cubic-bezier(.2,.8,.2,1),border-color 250ms ease,background 250ms ease; }
.catalog-option:nth-child(2) { --accent: var(--cyan); }
.catalog-option:nth-child(3) { --accent: var(--red); }
.catalog-option::before { content: attr(data-catalog-index); position: absolute; top: 8px; right: 12px; color: rgba(255,255,255,.12); font-family: "Space Grotesk",sans-serif; font-size: 9px; }
.catalog-option::after { content: ""; position: absolute; right: 0; bottom: 0; left: 0; height: 2px; background: linear-gradient(90deg,transparent,var(--accent),transparent); transform: translateX(-105%); transition: transform 450ms ease; }
.catalog-option:hover { transform: translateX(5px); border-color: rgba(255,255,255,.28); }
.catalog-option:hover::after,
.catalog-option.is-active::after { transform: translateX(0); }
.catalog-option.is-active { border-color: color-mix(in srgb,var(--accent) 56%,transparent); background: linear-gradient(110deg,color-mix(in srgb,var(--accent) 11%,transparent),rgba(255,255,255,.02)); transform: translateX(7px); box-shadow: -16px 18px 40px rgba(0,0,0,.32), inset 3px 0 var(--accent); }
.catalog-option__cover { position: relative; width: 76px; height: 88px; transform: perspective(500px) rotateY(10deg); transition: transform 300ms ease; }
.catalog-option:hover .catalog-option__cover,
.catalog-option.is-active .catalog-option__cover { transform: perspective(500px) rotateY(-4deg) translateZ(8px); }
.catalog-option__cover::before { content: ""; position: absolute; top: 3px; right: -6px; bottom: 3px; width: 8px; background: repeating-linear-gradient(to right,#aeb5bb 0 1px,#f1f3f4 1px 2px); transform: skewY(-35deg); transform-origin: left; }
.catalog-option img { position: relative; z-index: 2; width: 100%; height: 100%; object-fit: cover; box-shadow: 0 12px 24px rgba(0,0,0,.45); }
.catalog-option__copy { display: grid; gap: 7px; min-width: 0; }
.catalog-option__copy small { color: var(--accent); font-size: 7px; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.catalog-option__copy strong { font-family: "Space Grotesk",sans-serif; font-size: clamp(12px,1vw,15px); font-weight: 500; letter-spacing: -.035em; line-height: 1.08; }
.catalog-option__copy em { color: rgba(255,255,255,.38); font-size: 8px; font-style: normal; }
.library-foot { position: absolute; right: clamp(17px,1.8vw,30px); bottom: 23px; left: clamp(17px,1.8vw,30px); display: grid; gap: 8px; border-top: 1px solid var(--line); padding-top: 16px; }
.library-foot span { display: flex; align-items: center; gap: 8px; color: rgba(255,255,255,.31); font-size: 8px; font-weight: 700; letter-spacing: .04em; }
.library-foot i { width: 4px; height: 4px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 8px var(--cyan); }

.reader { position: relative; display: grid; min-width: 0; min-height: 0; grid-template-rows: 36px minmax(0,1fr) auto; overflow: hidden; }
.reader::before { content: ""; position: absolute; inset: 0; pointer-events: none; background: radial-gradient(circle at var(--pointer-x) var(--pointer-y),rgba(255,255,255,.045),transparent 18%); }
.reader__topbar { position: relative; z-index: 5; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 12px; padding: 0 18px; border-bottom: 1px solid rgba(255,255,255,.055); color: rgba(255,255,255,.34); font-size: 7px; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.reader__topbar b { margin-right: 5px; color: var(--cyan); }
.reader__topbar-line { height: 1px; overflow: hidden; background: rgba(255,255,255,.07); }
.reader__topbar-line i { display: block; width: 20%; height: 100%; background: linear-gradient(90deg,transparent,var(--cyan),transparent); animation: data-flow 4s linear infinite; }
@keyframes data-flow { to { transform: translateX(500%); } }
.reader__stage { position: relative; display: grid; min-height: 0; place-items: center; padding: 22px 26px 34px; perspective: 1900px; isolation: isolate; }
.stage-orbit { position: absolute; left: 50%; top: 50%; border: 1px solid rgba(88,216,255,.09); border-radius: 50%; transform: translate(-50%,-50%) rotateX(68deg); }
.stage-orbit::before,
.stage-orbit::after { content: ""; position: absolute; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 16px var(--cyan); }
.stage-orbit::before { left: 12%; top: 18%; width: 5px; height: 5px; }
.stage-orbit::after { right: 20%; bottom: 10%; width: 3px; height: 3px; background: var(--yellow); box-shadow: 0 0 16px var(--yellow); }
.stage-orbit--outer { width: min(85vw,1200px); aspect-ratio: 1.6; animation: reader-orbit 22s linear infinite; }
.stage-orbit--inner { width: min(65vw,860px); aspect-ratio: 1.48; border-style: dashed; border-color: rgba(246,210,11,.1); animation: reader-orbit-reverse 16s linear infinite; }
.stage-horizon { position: absolute; left: 6%; right: 6%; bottom: 10%; height: 40%; border-radius: 50%; opacity: .28; background: radial-gradient(ellipse at center,rgba(88,216,255,.18),transparent 65%); filter: blur(22px); transform: rotateX(70deg); }
.stage-coordinates { position: absolute; top: 16px; right: 18px; bottom: 18px; left: 18px; pointer-events: none; }
.stage-coordinates::before,
.stage-coordinates::after { content: ""; position: absolute; width: 28px; height: 28px; border-color: rgba(88,216,255,.22); }
.stage-coordinates::before { left: 0; top: 0; border-top: 1px solid; border-left: 1px solid; }
.stage-coordinates::after { right: 0; bottom: 0; border-right: 1px solid; border-bottom: 1px solid; }
.stage-coordinates span { position: absolute; color: rgba(255,255,255,.2); font-family: "Space Grotesk",sans-serif; font-size: 7px; letter-spacing: .17em; }
.stage-coordinates span:first-child { top: 0; left: 38px; }
.stage-coordinates span:last-child { right: 38px; bottom: 0; }
@keyframes reader-orbit { to { transform: translate(-50%,-50%) rotateX(68deg) rotateZ(360deg); } }
@keyframes reader-orbit-reverse { to { transform: translate(-50%,-50%) rotateX(68deg) rotateZ(-360deg); } }

.book-scene { position: relative; z-index: 3; width: min(71vw,1080px); transform: rotateX(var(--book-tilt-x)) rotateY(var(--book-tilt-y)) translateZ(0); transform-style: preserve-3d; transition: transform 100ms linear; }
.reader.is-switching .book-scene { animation: publication-switch 700ms cubic-bezier(.2,.8,.2,1) both; }
.book-shadow { position: absolute; right: 3%; bottom: -7%; left: 3%; height: 14%; border-radius: 50%; background: rgba(0,0,0,.82); filter: blur(27px); transform: translateZ(-80px) rotateX(72deg); }
.book { position: relative; display: grid; width: 100%; aspect-ratio: 1.414; grid-template-columns: 1fr 1fr; filter: drop-shadow(0 38px 48px rgba(0,0,0,.62)); transform-style: preserve-3d; transition: transform 360ms cubic-bezier(.2,.8,.2,1); }
.book::before { content: ""; position: absolute; left: 50%; top: .4%; bottom: .4%; z-index: 14; width: 7px; background: linear-gradient(90deg,rgba(0,0,0,.78),rgba(255,255,255,.3) 46%,rgba(0,0,0,.7)); box-shadow: -12px 0 22px rgba(0,0,0,.24),12px 0 22px rgba(0,0,0,.2); transform: translateX(-50%) translateZ(12px); }
.book::after { content: ""; position: absolute; inset: -10px; z-index: -1; border: 1px solid rgba(88,216,255,.17); clip-path: polygon(0 0,23% 0,23% 1px,77% 1px,77% 0,100% 0,100% 22%,calc(100% - 1px) 22%,calc(100% - 1px) 78%,100% 78%,100% 100%,77% 100%,77% calc(100% - 1px),23% calc(100% - 1px),23% 100%,0 100%,0 78%,1px 78%,1px 22%,0 22%); }
.book-edge { position: absolute; right: .8%; left: .8%; z-index: -1; height: 8px; background: repeating-linear-gradient(to bottom,#fafafa 0 1px,#aeb4ba 1px 2px); transform: translateZ(-5px); }
.book-edge--top { top: -7px; transform: rotateX(58deg); transform-origin: bottom; }
.book-edge--bottom { bottom: -7px; transform: rotateX(-58deg); transform-origin: top; }
.book-page { position: relative; overflow: hidden; background: #f3f4f5; transform-style: preserve-3d; }
.book-page::after { content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .48; mix-blend-mode: multiply; }
.book-page--left { border-radius: 8px 1px 1px 8px; box-shadow: inset -22px 0 35px rgba(0,0,0,.18); transform-origin: right; }
.book-page--left::after { background: linear-gradient(90deg,transparent 70%,rgba(0,0,0,.19)); }
.book-page--right { border-radius: 1px 8px 8px 1px; box-shadow: inset 22px 0 35px rgba(0,0,0,.15); transform-origin: left; }
.book-page--right::after { background: linear-gradient(90deg,rgba(0,0,0,.16),transparent 30%); }
.book-page.is-empty { border: 1px solid rgba(255,255,255,.1); background: linear-gradient(135deg,#101720,#06090d); }
.book-page img { width: 100%; height: 100%; object-fit: contain; background: #fff; }
.book-page__number { position: absolute; right: 10px; bottom: 9px; z-index: 5; min-width: 28px; border: 1px solid rgba(255,255,255,.25); padding: 4px 7px; background: rgba(0,0,0,.7); color: #fff; font-family: "Space Grotesk",sans-serif; font-size: 8px; font-weight: 700; text-align: center; backdrop-filter: blur(8px); }
.book-page--left .book-page__number { right: auto; left: 10px; }
.turn-sheet { position: absolute; top: 0; left: 50%; z-index: 20; width: 50%; height: 100%; opacity: 0; pointer-events: none; transform-style: preserve-3d; transform-origin: left center; }
.turn-sheet__face { position: absolute; inset: 0; overflow: hidden; backface-visibility: hidden; background: #fff; box-shadow: inset 18px 0 32px rgba(0,0,0,.16); }
.turn-sheet__face img { width: 100%; height: 100%; object-fit: contain; }
.turn-sheet__back { transform: rotateY(180deg); }
.turn-sheet__glint { position: absolute; inset: 0; z-index: 4; background: linear-gradient(90deg,transparent,rgba(255,255,255,.75),transparent); mix-blend-mode: screen; transform: translateX(-110%); }
.book-scene.is-turning-next .turn-sheet { opacity: 1; animation: turn-next 720ms cubic-bezier(.62,.02,.16,1) both; }
.book-scene.is-turning-prev .turn-sheet { left: 0; opacity: 1; transform-origin: right center; animation: turn-prev 720ms cubic-bezier(.62,.02,.16,1) both; }
.book-scene.is-turning-next .turn-sheet__glint,
.book-scene.is-turning-prev .turn-sheet__glint { animation: sheet-glint 720ms ease both; }
@keyframes turn-next { 0% { transform: rotateY(0) skewY(0); filter: brightness(1); } 48% { filter: brightness(.68); } 100% { transform: rotateY(-180deg) skewY(-1deg); filter: brightness(1); } }
@keyframes turn-prev { 0% { transform: rotateY(0) skewY(0); filter: brightness(1); } 48% { filter: brightness(.68); } 100% { transform: rotateY(180deg) skewY(1deg); filter: brightness(1); } }
@keyframes sheet-glint { 0%,20% { transform: translateX(-115%); } 80%,100% { transform: translateX(115%); } }
@keyframes publication-switch { 0% { opacity: 1; filter: blur(0); } 38% { opacity: 0; filter: blur(18px); transform: rotateX(8deg) rotateY(-10deg) scale(.82); } 58% { opacity: 0; filter: blur(14px); transform: rotateX(-4deg) rotateY(8deg) scale(.86); } 100% { opacity: 1; filter: blur(0); } }
.page-zone { position: absolute; top: 0; bottom: 0; z-index: 12; width: 16%; border: 0; padding: 0; background: transparent; cursor: pointer; }
.page-zone--prev { left: 0; }
.page-zone--next { right: 0; }
.page-zone span { position: absolute; top: 50%; display: grid; width: 42px; height: 42px; place-items: center; border: 1px solid rgba(255,255,255,.2); border-radius: 50%; background: rgba(3,5,8,.76); opacity: 0; color: #fff; transform: translateY(-50%) scale(.7); backdrop-filter: blur(8px); transition: opacity 180ms ease,transform 180ms ease,border-color 180ms ease; }
.page-zone--prev span { left: 16px; }
.page-zone--next span { right: 16px; }
.book:hover .page-zone:not(:disabled) span { opacity: 1; transform: translateY(-50%) scale(1); }
.page-zone:hover span { border-color: var(--cyan); }
.stage-caption { position: absolute; right: 26px; bottom: 12px; left: 26px; display: flex; align-items: center; gap: 14px; color: rgba(255,255,255,.26); font-size: 7px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.stage-caption span:first-child { color: rgba(255,255,255,.55); }
.stage-caption i { flex: 1; height: 1px; background: linear-gradient(90deg,rgba(255,255,255,.13),transparent); }

.reader-console { position: relative; z-index: 8; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 12px 20px; border-top: 1px solid var(--line); padding: 12px 18px 14px; background: rgba(3,5,8,.7); backdrop-filter: blur(22px); }
.reader-console::before { content: ""; position: absolute; top: -1px; left: 50%; width: 90px; height: 1px; background: var(--yellow); box-shadow: 0 0 18px rgba(246,210,11,.55); transform: translateX(-50%); }
.reader-console__nav,
.reader-console__tools { display: flex; align-items: center; gap: 7px; }
.reader-console__nav { justify-self: start; }
.reader-console__tools { justify-self: end; }
.console-button { display: inline-flex; min-width: 37px; height: 37px; align-items: center; justify-content: center; gap: 9px; border: 1px solid var(--line); padding: 0 11px; background: rgba(255,255,255,.035); cursor: pointer; clip-path: polygon(7px 0,100% 0,100% calc(100% - 7px),calc(100% - 7px) 100%,0 100%,0 7px); transition: transform 180ms ease,border-color 180ms ease,background 180ms ease; }
.console-button small { color: rgba(255,255,255,.48); font-size: 7px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.console-button span { color: var(--cyan); font-size: 15px; }
.console-button:hover:not(:disabled) { border-color: rgba(88,216,255,.55); background: rgba(88,216,255,.075); transform: translateY(-2px); }
.console-button:disabled { opacity: .22; cursor: default; }
.console-button--primary { min-width: 91px; }
.page-status { display: flex; min-width: 105px; align-items: baseline; justify-content: center; gap: 7px; font-family: "Space Grotesk",sans-serif; }
.page-status strong { color: #fff; font-size: 20px; font-weight: 500; letter-spacing: -.05em; }
.page-status span { color: rgba(255,255,255,.28); font-size: 8px; letter-spacing: .14em; }
.zoom-status { min-width: 45px; color: rgba(255,255,255,.45); font-family: "Space Grotesk",sans-serif; font-size: 8px; text-align: center; }
.thumbnail-rail { grid-column: 1/-1; display: flex; gap: 8px; overflow-x: auto; padding: 3px 2px 1px; scrollbar-width: thin; scrollbar-color: var(--yellow) rgba(255,255,255,.06); }
.thumbnail { position: relative; flex: 0 0 43px; overflow: hidden; border: 1px solid transparent; padding: 0; background: #10151b; cursor: pointer; opacity: .32; transition: opacity 180ms ease,transform 180ms ease,border-color 180ms ease; }
.thumbnail::after { content: ""; position: absolute; right: 0; bottom: 0; left: 0; height: 2px; background: var(--yellow); transform: scaleX(0); transition: transform 180ms ease; }
.thumbnail img { width: 100%; aspect-ratio: .705; object-fit: cover; }
.thumbnail:hover { opacity: .78; transform: translateY(-3px); }
.thumbnail.is-active { border-color: rgba(246,210,11,.7); opacity: 1; transform: translateY(-3px); }
.thumbnail.is-active::after { transform: scaleX(1); }

.catalog-inspector { border-left: 1px solid var(--line); padding: clamp(24px,3vh,42px) clamp(18px,2vw,31px) 24px; }
.inspector-heading { display: flex; align-items: center; gap: 13px; }
.catalog-inspector__number { margin-top: clamp(34px,6vh,78px); color: transparent; font-family: "Space Grotesk",sans-serif; font-size: clamp(90px,9vw,150px); font-weight: 600; letter-spacing: -.1em; line-height: .68; -webkit-text-stroke: 1px rgba(255,255,255,.1); }
.inspector-rule { display: block; width: 54px; height: 2px; margin: 27px 0 22px; background: linear-gradient(90deg,var(--yellow),var(--cyan)); box-shadow: 0 0 14px rgba(88,216,255,.38); }
.catalog-inspector h2 { max-width: 240px; margin: 0 0 14px; font-family: "Space Grotesk",sans-serif; font-size: clamp(24px,2.2vw,35px); font-weight: 500; letter-spacing: -.065em; line-height: .95; }
.catalog-inspector > p { max-width: 235px; margin: 0; color: rgba(255,255,255,.4); font-size: 10px; line-height: 1.8; }
.inspector-specs { display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; margin-top: 27px; background: var(--line); }
.inspector-specs div { display: grid; gap: 5px; padding: 11px 7px; background: rgba(4,7,10,.95); }
.inspector-specs span { color: rgba(255,255,255,.25); font-size: 6px; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.inspector-specs strong { font-family: "Space Grotesk",sans-serif; font-size: 8px; font-weight: 500; }
.reader-hints { display: grid; gap: 9px; margin-top: 27px; border-top: 1px solid var(--line); padding-top: 18px; }
.reader-hints span { display: flex; align-items: center; gap: 10px; color: rgba(255,255,255,.36); font-size: 8px; }
.reader-hints b { display: grid; width: 31px; height: 27px; place-items: center; border: 1px solid var(--line); color: rgba(255,255,255,.72); font-family: "Space Grotesk",sans-serif; font-size: 8px; }
.inspector-contact { position: absolute; right: clamp(18px,2vw,31px); bottom: 24px; left: clamp(18px,2vw,31px); display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--line); padding: 17px 0 0; color: rgba(255,255,255,.58); font-size: 8px; font-weight: 800; letter-spacing: .07em; text-transform: uppercase; transition: color 180ms ease; }
.inspector-contact span { color: var(--yellow); font-size: 16px; }
.inspector-contact:hover { color: #fff; }
.book-scene.is-zoomed { cursor: grab; }
.book-scene.is-zoomed:active { cursor: grabbing; }

@media (max-width: 1280px) {
    .catalog-layout { grid-template-columns: 270px minmax(520px,1fr); }
    .catalog-inspector { display: none; }
    .book-scene { width: min(76vw,1060px); }
}

@media (max-width: 900px) {
    body { overflow: auto; padding-bottom: calc(76px + env(safe-area-inset-bottom)); }
    .catalog-shell { height: auto; min-height: 100svh; grid-template-rows: 68px auto; }
    .catalog-header { grid-template-columns: 1fr auto; }
    .catalog-header__title { display: none; }
    .catalog-header__nav a { display: none; }
    .catalog-header__status { border: 0; padding-left: 0; }
    .catalog-brand__home { display: inline-flex; }
    .catalog-layout { display: block; width: 100%; min-width: 0; overflow: hidden; }
    .catalog-library { width: 100%; min-width: 0; overflow: hidden; border-right: 0; border-bottom: 1px solid var(--line); padding: 20px 16px 17px; }
    .library-heading { margin-bottom: 15px; }
    .library-intro,.library-foot { display: none; }
    .catalog-list { display: flex; gap: 10px; overflow-x: auto; padding-bottom: 4px; }
    .catalog-option { flex: 0 0 245px; min-height: 92px; grid-template-columns: 65px 1fr; }
    .catalog-option__cover { width: 65px; height: 74px; }
    .catalog-option.is-active { transform: none; }
    .reader { width: 100%; max-width: 100vw; min-height: calc(100svh - 250px); grid-template-rows: 32px minmax(380px,1fr) auto; }
    .reader__stage { width: 100%; overflow: hidden; padding: 42px 8px 40px; }
    .book-scene { width: 96vw; }
    .stage-caption { right: 12px; left: 12px; }
    .stage-caption span:last-child { display: none; }
    .reader-console { width: 100%; overflow: hidden; padding: 12px 10px; }

    .catalog-mobile-nav {
        position: fixed;
        right: 10px;
        bottom: calc(9px + env(safe-area-inset-bottom));
        left: 10px;
        z-index: 60;
        display: grid;
        grid-template-columns: repeat(4,1fr);
        gap: 4px;
        padding: 6px;
        border: 1px solid rgba(255,255,255,.13);
        border-radius: 19px;
        background: rgba(4,7,11,.93);
        box-shadow: 0 14px 38px rgba(0,0,0,.4);
        backdrop-filter: blur(16px) saturate(1.1);
    }
    .catalog-mobile-nav a { display: grid; min-width: 0; min-height: 50px; place-items: center; align-content: center; gap: 3px; border-radius: 14px; color: rgba(255,255,255,.58); }
    .catalog-mobile-nav a[aria-current="page"] { background: rgba(246,210,11,.1); color: var(--yellow); }
    .catalog-mobile-nav span { font-size: 17px; line-height: 1; }
    .catalog-mobile-nav small { overflow: hidden; font-size: 9px; font-weight: 700; text-overflow: ellipsis; white-space: nowrap; }
}

@media (max-width: 700px) {
    .catalog-brand__name { display: none; }
    .catalog-header__status { font-size: 7px; }
    .library-heading h1 { font-size: 30px; }
    .section-index { width: 34px; height: 34px; }
    .catalog-option { flex-basis: min(276px,82vw); }
    .reader { min-height: 0; grid-template-rows: 32px auto auto; }
    .reader__topbar span:first-child { display: none; }
    .reader__topbar { grid-template-columns: 1fr auto; }
    .reader__stage { min-height: min(78svh,760px); padding: 30px 10px 34px; }
    .book-scene { width: min(88vw,calc((74svh - 74px) * .705),470px); touch-action: pan-y; }
    .book { aspect-ratio: .705; grid-template-columns: 1fr; filter: drop-shadow(0 24px 34px rgba(0,0,0,.56)); }
    .book::before { display: none; }
    .book-page--left { display: none; }
    .book-page--right { grid-column: 1; border-radius: 7px; box-shadow: inset 10px 0 24px rgba(0,0,0,.12); }
    .book-page--right::after { background: linear-gradient(90deg,rgba(0,0,0,.08),transparent 24%); }
    .book-page img { object-fit: contain; object-position: center; }
    .turn-sheet { left: 0; width: 100%; transform-origin: left center; }
    .book-scene.is-turning-prev .turn-sheet { left: 0; transform-origin: right center; }
    .book-edge { right: 1.5%; left: 1.5%; }
    .stage-orbit,.stage-horizon { opacity: .12; }
    .stage-coordinates { inset: 12px; }
    .reader-console { grid-template-columns: 1fr; }
    .reader-console__nav { justify-self: stretch; justify-content: space-between; }
    .reader-console__tools { justify-self: center; }
    .console-button--primary { min-width: 82px; }
    .thumbnail-rail { grid-column: 1; }
    .page-zone { width: 24%; }
    .page-zone span { width: 36px; height: 36px; opacity: .72; transform: translateY(-50%) scale(1); }
    .page-zone--prev span { left: 10px; }
    .page-zone--next span { right: 10px; }
}

@media (prefers-reduced-motion: reduce) {
    *,*::before,*::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
    .book-scene { transform: none !important; }
}