:root{--sky-top:#748fa6;--sky-bottom:#f4c28a;--mountain-back:#6f8190;--mountain-front:#384f60;--sun-color:#fff0b9}
:root[data-scene=day]{--sky-top:#6aa8ca;--sky-bottom:#d8e6df;--mountain-back:#7193a0;--mountain-front:#3e6472;--sun-color:#fff5d1}
:root[data-scene=sunset]{--sky-top:#796c91;--sky-bottom:#eaa281;--mountain-back:#796b87;--mountain-front:#46445e;--sun-color:#ffd49c}
:root[data-scene=night]{--sky-top:#101e37;--sky-bottom:#52617a;--mountain-back:#344158;--mountain-front:#1e2e43;--sun-color:#e1e8ee}
body{background:linear-gradient(var(--sky-top),var(--sky-bottom)) fixed}
body:before,body:after{content:'';position:fixed;inset:0;pointer-events:none;z-index:-1}
body:before{background:radial-gradient(circle at 50% 47%,var(--sun-color) 0 5%,transparent 5.2%),linear-gradient(var(--sky-top),var(--sky-bottom))}
body:after{background:var(--mountain-front);clip-path:polygon(0 56%,13% 37%,29% 65%,41% 54%,50% 71%,67% 42%,78% 52%,89% 31%,100% 49%,100% 100%,0 100%)}
.personal-background body:before{background-image:linear-gradient(#13283b30,#13283b30),var(--personal-background);background-size:cover;background-position:center}.personal-background body:after{display:none}
.topbar{background:var(--paper);box-shadow:0 2px 20px #10243815}.reader-toolbar{background:var(--paper);border-radius:0 0 12px 12px;padding-inline:14px;margin-bottom:24px}.workspace:not(.reader-workspace){background:var(--paper);border-radius:16px;margin-top:28px;margin-bottom:28px}.reader-footer,.reader-hint{background:var(--paper);border-radius:8px;padding:12px}.welcome,.dark .welcome{background:transparent}.welcome-card{background:var(--paper)}.scenery-settings{margin-top:22px}.brand strong{font-family:system-ui,sans-serif;font-size:22px;font-weight:650;letter-spacing:2px}.brand strong span{display:none}
@media(max-width:600px){.workspace:not(.reader-workspace){margin:12px 8px 90px;padding:22px 16px}.reader-toolbar{margin-bottom:14px}.brand strong{font-size:16px;letter-spacing:1.5px}}
/* Artwork adapted from the user's selected UNLOCKED reference. */
body:before{background-image:linear-gradient(var(--scene-tint,transparent),var(--scene-tint,transparent)),url('assets/sunrise-background.png');background-size:cover;background-position:center 60%;filter:var(--scene-filter,none)}
body:after{display:none}
:root[data-scene=day]{--scene-filter:saturate(.92) brightness(1.09);--scene-tint:#e1f3ff12}
:root[data-scene=sunset]{--scene-filter:saturate(1.1);--scene-tint:#a83d362b}
:root[data-scene=night]{--scene-filter:brightness(.46) saturate(.65);--scene-tint:#102d5866}
.personal-background body:before{filter:none}
.brand{color:#102e53}.brand-mark{width:48px;height:38px}.brand-mark img{width:48px;height:38px;object-fit:contain}.book-emblem{border:0;border-radius:0;width:110px;height:65px}.book-emblem img{width:110px;height:65px;object-fit:contain}
.welcome-card{background:#fffdf5ee;backdrop-filter:blur(8px)}
@media(min-width:1000px){body:before{background-position:center 58%}.reader-workspace{max-width:900px}.workspace{margin-inline:auto}}