:root{color-scheme:dark;--text:#f5f8fc;--muted:#a9b8c9;--line:#ffffff24;--red:#ef3e33;font-family:Inter,'Segoe UI',Arial,sans-serif;background:#071b31;color:var(--text)}
*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 50% 20%,#123652,#071b31 70%)}button,a{font:inherit}a{color:inherit}button{cursor:pointer}button:disabled{cursor:default;opacity:.3}button:focus-visible,a:focus-visible{outline:3px solid #78baff;outline-offset:4px}
.app-shell{height:100vh;height:100dvh;min-height:300px;display:flex;flex-direction:column}.topbar{flex-shrink:0;display:flex;align-items:center;justify-content:space-between;padding:10px clamp(14px,3vw,48px);gap:14px;border-bottom:1px solid var(--line);background:#041322b8}.brand-lockup{display:flex;align-items:center;gap:16px;min-width:0}.brand{display:flex;flex-direction:column;gap:6px;text-decoration:none;flex-shrink:0}.brand-logo{display:block;width:190px;height:31px;object-fit:contain}.brand-note{font-size:.75rem;color:var(--muted)}.varmuss-brand{display:flex;align-items:center;justify-content:center;width:112px;height:48px;padding:0;border:1px solid #ffffff26;border-radius:7px;overflow:hidden;background:#1d4f83;box-shadow:0 4px 14px #0003}.varmuss-brand:hover{border-color:#ffffff66}.varmuss-brand img{display:block;width:100%;height:100%;object-fit:cover}.actions{display:flex;gap:8px}.action,.control-button{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:8px 14px;border:1px solid var(--line);border-radius:8px;text-decoration:none;background:#ffffff0e;color:var(--text);font-size:.875rem;font-weight:600}.action-primary{background:var(--red);border-color:transparent}
.reader{position:relative;flex:1;min-height:0;display:flex;flex-direction:column;width:min(1440px,100%);margin:auto;padding:12px 18px 10px;gap:10px}.reader-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-shrink:0;padding:0 54px}.reader-meta p{margin:0;font-size:.875rem}.page-label{color:var(--muted)}.book-stage{position:relative;flex:1;min-height:0;display:flex;align-items:center;justify-content:center;padding:0 58px;perspective:2200px}.book{position:relative;flex-shrink:0;transform-style:preserve-3d;touch-action:pan-y;isolation:isolate}.page-slot{position:absolute;top:0;width:50%;height:100%;box-shadow:0 12px 30px #0006}.page-left{left:0}.page-right{right:0}.page-slot:empty{display:none}.page-slot img,.leaf-face img{display:block;width:100%;height:100%;user-select:none;-webkit-user-drag:none;object-fit:fill}.page-slot img{cursor:zoom-in}.book.mobile .page-slot{width:100%;left:0;right:auto}.book.mobile .page-left{display:none}
.turning-leaf{position:absolute;top:0;width:50%;height:100%;transform-style:preserve-3d;z-index:4;pointer-events:none;will-change:transform}.turning-leaf.forward{left:50%;transform-origin:left center}.turning-leaf.backward{left:0;transform-origin:right center}.book.mobile .turning-leaf{left:0;width:100%}.leaf-face{position:absolute;inset:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;overflow:hidden;background:#fff;box-shadow:0 8px 28px #0005}.leaf-back{transform:rotateY(180deg)}.leaf-face:after{content:'';position:absolute;inset:0;pointer-events:none;background:linear-gradient(90deg,#0005,transparent 24%,#0001 80%,#0003);opacity:var(--shade,0)}.turning-leaf.backward .leaf-face:after{background:linear-gradient(270deg,#0005,transparent 24%,#0001 80%,#0003)}
.nav-button{position:absolute;z-index:8;top:50%;transform:translateY(-50%);width:44px;height:60px;border:1px solid var(--line);border-radius:10px;background:#ffffff12;color:#fff;font-size:2.1rem}.nav-prev{left:0}.nav-next{right:0}.reader-controls{flex-shrink:0;display:flex;align-items:center;justify-content:center;gap:14px}.progress-track{width:min(32vw,360px);height:3px;background:#ffffff26}.progress-track span{display:block;height:100%;background:var(--red);transition:width .25s}.gesture-hint{margin:0;text-align:center;font-size:.8rem;color:var(--muted)}.footer{flex-shrink:0;display:flex;justify-content:space-between;padding:10px 36px;border-top:1px solid var(--line);color:var(--muted);font-size:.8rem}.footer a{text-decoration:none}.contents-panel{position:absolute;bottom:72px;left:4%;right:4%;z-index:20;max-height:70%;overflow:auto;padding:16px;display:grid;grid-template-columns:repeat(8,1fr);gap:10px;background:#071b31f8;border:1px solid var(--line);border-radius:12px;box-shadow:0 15px 60px #0009}.contents-panel[hidden]{display:none}.thumb{padding:0;border:2px solid transparent;background:none;border-radius:4px;overflow:hidden}.thumb.active{border-color:var(--red)}.thumb img{width:100%;display:block}
.zoom-dialog{max-width:none;max-height:none;width:100vw;height:100dvh;margin:0;padding:54px 14px 14px;border:0;background:#030c16f8;overflow:auto}.zoom-dialog::backdrop{background:#000c}.zoom-dialog img{display:block;width:1056px;max-width:none;height:auto;margin:0 auto}.zoom-close{position:fixed;top:10px;right:16px;z-index:25;width:42px;height:42px;border:1px solid var(--line);border-radius:50%;color:white;background:#17324a;font-size:1.8rem}
.catalog-dialog{width:min(1000px,calc(100vw - 28px));max-height:calc(100dvh - 28px);padding:0;border:1px solid #ffffff2b;border-radius:14px;color:var(--text);background:#071b31;box-shadow:0 24px 90px #000b;overflow:auto}.catalog-dialog::backdrop{background:#020811d9;backdrop-filter:blur(5px)}.catalog-dialog-shell{padding:22px}.catalog-dialog-header{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:18px}.catalog-dialog-header p{margin:0 0 3px;color:#8fb2d3;font-size:.78rem;text-transform:uppercase;letter-spacing:.12em}.catalog-dialog-header h2{margin:0;font-size:1.5rem}.catalog-close{width:42px;height:42px;flex:0 0 auto;border:1px solid var(--line);border-radius:50%;color:white;background:#ffffff10;font-size:1.8rem}.catalog-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.catalog-card{display:grid;grid-template-columns:150px minmax(0,1fr);gap:16px;padding:14px;border:1px solid var(--line);border-radius:12px;background:#ffffff09}.catalog-cover{display:block;width:150px;height:auto;aspect-ratio:595/842;object-fit:cover;border-radius:5px;box-shadow:0 10px 25px #0007}.catalog-copy{min-width:0;display:flex;flex-direction:column}.catalog-meta{margin:0 0 8px;color:#8fb2d3;font-size:.78rem}.catalog-copy h3{margin:0;font-size:1.05rem;line-height:1.22}.catalog-description{margin:10px 0;color:var(--muted);font-size:.85rem;line-height:1.4}.catalog-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto}.catalog-actions a{display:inline-flex;align-items:center;justify-content:center;min-height:38px;padding:7px 11px;border-radius:7px;text-decoration:none;font-size:.8rem;font-weight:700}.catalog-open{background:var(--red)}.catalog-download{border:1px solid var(--line);background:#ffffff0b}
body.immersive-mode{overflow:hidden}body.immersive-mode .app-shell{position:fixed;inset:0;z-index:100;background:radial-gradient(ellipse at 50% 20%,#123652,#071b31 70%)}body.immersive-mode .topbar,body.immersive-mode .reader-meta,body.immersive-mode .footer,body.immersive-mode .gesture-hint,body.immersive-mode #contentsButton,body.immersive-mode .progress-track{display:none}body.immersive-mode .reader{width:100%;padding:0;gap:0}body.immersive-mode .book-stage{padding:0 54px}body.immersive-mode .reader-controls{position:fixed;z-index:30;top:max(8px,env(safe-area-inset-top));right:max(8px,env(safe-area-inset-right))}body.immersive-mode #fullscreenButton{display:inline-flex!important;min-height:36px;padding:6px 12px;background:#041322e8;box-shadow:0 4px 18px #0008}
@media(max-width:800px){.topbar{padding:9px 10px;gap:8px}.brand-lockup{gap:8px}.brand-logo{width:clamp(112px,36vw,150px);height:auto}.varmuss-brand{width:clamp(64px,20vw,86px);height:auto;aspect-ratio:2/1}.brand-note,.action-secondary{display:none}.action-primary{min-height:38px;padding:7px 9px;font-size:.78rem}.reader{padding:10px 6px;gap:9px}.reader-meta{padding:0 6px}.chapter-label{max-width:62%;white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.reader-meta p{font-size:.8rem}.book-stage{padding:0 30px}.nav-button{width:28px;height:46px;border-radius:6px;font-size:1.7rem}.footer{display:none}.contents-panel{grid-template-columns:repeat(4,1fr)}.gesture-hint{font-size:.75rem}.catalog-dialog-shell{padding:14px}.catalog-dialog-header{margin-bottom:12px}.catalog-grid{grid-template-columns:1fr;gap:12px}.catalog-card{grid-template-columns:92px minmax(0,1fr);gap:12px;padding:10px}.catalog-cover{width:92px}.catalog-copy h3{font-size:.95rem}.catalog-description{margin:7px 0;font-size:.78rem}.catalog-actions a{min-height:34px;padding:6px 9px;font-size:.75rem}}
@media(max-width:800px) and (orientation:portrait){#fullscreenButton{display:none}}
@media(max-height:520px) and (orientation:landscape){.topbar{padding:6px 12px}.brand-logo{width:150px;height:auto}.varmuss-brand{width:82px}.brand-note,.footer,.gesture-hint{display:none}.action,.control-button{min-height:32px;padding:5px 12px}.reader{padding:5px 12px;gap:5px}.reader-meta{padding:0 50px}.reader-meta p{font-size:.75rem}.contents-panel{grid-template-columns:repeat(8,1fr)}.catalog-dialog{width:min(960px,calc(100vw - 18px));max-height:calc(100dvh - 18px)}.catalog-dialog-shell{padding:10px}.catalog-dialog-header{margin-bottom:8px}.catalog-dialog-header h2{font-size:1.15rem}.catalog-dialog-header p{display:none}.catalog-close{width:34px;height:34px}.catalog-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.catalog-card{grid-template-columns:92px minmax(0,1fr);gap:10px;padding:9px}.catalog-cover{width:92px}.catalog-description{display:none}.catalog-actions{margin-top:8px}.catalog-actions a{min-height:30px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}

/* Catalog library v6: equal framed brand buttons, original SVG proportions. */
.brand-lockup{gap:12px;flex-shrink:1}.brand-catalog-button{display:flex;align-items:center;justify-content:center;gap:13px;width:218px;height:58px;padding:10px 15px;border:1px solid #ffffff55;border-radius:5px;background:transparent;color:var(--text);transition:background .18s,border-color .18s}.brand-catalog-button span{font-size:13px;font-weight:500;white-space:nowrap}.brand-catalog-button img{display:block;width:112px;height:30px;object-fit:contain;flex-shrink:0}.brand-catalog-button:hover{background:#ffffff0b;border-color:#ffffffa3}.brand-catalog-button[aria-pressed=true]{border-color:#ffffffa3;background:#ffffff09}.topbar{gap:18px}.reader-heading{min-width:0}.reader-meta .catalog-title{margin:0 0 4px;font-size:15px;line-height:1.25;font-weight:600;color:var(--text)}.reader-meta .chapter-label{margin:0;font-size:12px;color:var(--muted)}.page-label{white-space:nowrap;flex-shrink:0}.reader-error{margin:0;font-size:12px;color:#ffcbc6;text-align:center}.reader-error[hidden]{display:none}.thumb{position:relative}.thumb-number{position:absolute;right:3px;bottom:3px;min-width:21px;padding:2px 4px;border-radius:3px;background:#041322e8;color:white;font-size:11px;line-height:1.2}.catalog-grid{grid-template-columns:repeat(3,minmax(0,1fr));align-items:stretch}.catalog-card{display:flex;flex-direction:column;gap:16px;padding:18px}.catalog-cover{width:112px;align-self:center}.catalog-copy{flex:1}.catalog-copy h3{font-size:1rem;line-height:1.3}.catalog-description{font-size:.82rem}.catalog-actions{padding-top:8px}.catalog-actions a,.catalog-actions button{display:inline-flex;align-items:center;justify-content:center;min-height:38px;padding:7px 11px;border-radius:5px;text-decoration:none;font:inherit;font-size:.8rem;font-weight:600;cursor:pointer}.catalog-open{border:1px solid transparent;background:#DA291C;color:white}.catalog-download{color:var(--text)}.current-catalog{border-color:#ffffff60}.catalog-grid.single-catalog{grid-template-columns:1fr;max-width:620px;margin:0 auto}.single-catalog .catalog-card{display:grid;grid-template-columns:140px minmax(0,1fr)}.single-catalog .catalog-cover{width:140px}.zoom-dialog img{width:auto;height:auto;max-width:max(100%,1056px)}
@media(max-width:1000px){.brand-catalog-button{width:192px;gap:10px;padding:10px}.brand-catalog-button img{width:100px}.catalog-dialog-shell{padding:18px}.catalog-card{padding:14px}.catalog-grid{gap:12px}}
@media(max-width:800px){.topbar{gap:10px;padding:9px 10px}.brand-lockup{gap:8px;flex:1}.brand-catalog-button{height:56px;flex:1;width:auto;min-width:0;gap:4px;padding:6px 8px;flex-direction:column}.brand-catalog-button span{font-size:11px;line-height:1.2}.brand-catalog-button img{width:100px;max-width:100%;height:25px}.actions{flex-shrink:0}.action-primary{font-size:0;min-width:43px;padding:8px}.action-primary:after{content:'PDF';font-size:12px;font-weight:700}.reader-meta{align-items:flex-start;gap:10px}.reader-meta .catalog-title{font-size:12px;max-width:100%;line-height:1.3}.reader-meta .chapter-label{font-size:11px;max-width:100%}.reader-meta .page-label{font-size:11px;line-height:1.5}.catalog-grid{grid-template-columns:1fr}.catalog-card,.single-catalog .catalog-card{display:grid;grid-template-columns:92px minmax(0,1fr);gap:12px;padding:12px}.catalog-cover,.single-catalog .catalog-cover{width:92px}.catalog-copy h3{font-size:.95rem}.catalog-description{font-size:.78rem}.catalog-actions a,.catalog-actions button{min-height:36px;font-size:.75rem;padding:6px 9px}.catalog-dialog-header h2{font-size:1.2rem}.catalog-dialog-shell{padding:14px}}
@media(max-height:520px) and (orientation:landscape){.topbar{padding:5px 12px}.brand-lockup{flex:0 1 auto}.brand-catalog-button{flex-direction:row;width:180px;flex:0 0 auto;height:40px;padding:6px 10px;gap:9px}.brand-catalog-button img{width:92px;height:25px}.brand-catalog-button span{font-size:11px}.reader-meta .catalog-title{font-size:11px;margin-bottom:2px}.reader-meta .chapter-label{font-size:10px}.catalog-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.catalog-card{display:flex;flex-direction:column;gap:8px;padding:10px}.catalog-cover{width:68px}.catalog-copy h3{font-size:.82rem}.catalog-actions{gap:5px;padding-top:0}.catalog-actions a,.catalog-actions button{min-height:30px;font-size:.7rem;padding:5px 7px}.single-catalog .catalog-card{display:grid}.catalog-dialog-shell{padding:10px}.catalog-dialog-header h2{font-size:1.1rem}}
@media(max-width:360px){.brand-catalog-button img{width:86px}.brand-lockup{gap:6px}.topbar{gap:6px}.brand-catalog-button{padding:5px}.reader-meta .page-label{font-size:10px}}
.reader-error{position:absolute;left:50%;bottom:105px;transform:translateX(-50%);z-index:10;max-width:90%;padding:10px 14px;border:1px solid #ffcbc660;border-radius:6px;background:#071b31f5}
.catalog-site-link{display:inline-block;margin-top:7px;color:#b9d7f3;text-underline-offset:3px;font-size:12px;line-height:1.4}.catalog-site-link:hover{color:white}