/* NOVA COMMON PAGE SHELL V1.8 — single source of geometry */
:root{--nova-shell-width:1600;--nova-shell-ratio:16/9;--nova-header-height:68px;--nova-content-top:68px}
html,body{margin:0!important;padding:0!important;min-width:0!important}
body{overflow-x:hidden!important}
main.nova-page-shell{position:relative!important;display:block!important;width:min(100vw,1600px)!important;max-width:1600px!important;height:auto!important;min-height:0!important;aspect-ratio:16/9!important;margin:0 auto!important;box-sizing:border-box!important;overflow:hidden!important;isolation:isolate}
/* Explicit common content coordinate system. Artwork may contain its own margins. */
main.nova-page-shell{--nova-content-x:0px;--nova-content-y:68px;--nova-content-width:100%;--nova-content-height:calc(100% - 68px)}
/* QA overlay: append ?qa=1 to a page URL; outline is not part of production rendering. */
html[data-nova-qa="1"] main.nova-page-shell{outline:3px solid #e35252!important;outline-offset:-3px}
html[data-nova-qa="1"] main.nova-page-shell:after{content:"COMMON PAGE SHELL · 16:9 · 1600×900 DESIGN";position:absolute;left:0;right:0;bottom:0;height:19px;background:rgba(11,48,91,.85);color:white;font:11px Arial;text-align:center;z-index:214748000;pointer-events:none}

/* V2.0: one content frame, common to Page 03 and Page 05. */
:root{--nova-frame-x:8%;--nova-frame-width:84%;--nova-frame-top:68px}
.nova-visual-frame{position:absolute!important;left:var(--nova-frame-x)!important;top:var(--nova-frame-top)!important;width:var(--nova-frame-width)!important;height:calc(100% - var(--nova-frame-top))!important;overflow:hidden!important;box-sizing:border-box!important;transform:none!important;aspect-ratio:auto!important;background:#e7f2fc}
body[data-nova-page="03"] main.nova-page-shell{background:#f5f9fc!important}
body[data-nova-page="05"] main.nova-page-shell{background:#f5f9fc!important}
html[data-nova-qa="1"] .nova-visual-frame{outline:2px solid #1f88bc!important;outline-offset:-2px}
/* Source art retains a baked-in old header at its top. Clip only that header,
   leaving the original illustration untouched. No opaque masking band. */
body[data-nova-page="05"] .nova-frame-design>.art{clip-path:inset(7.45% 0 0 0)!important}
body[data-nova-page="05"] .nova-frame-design{background:linear-gradient(90deg,#e7f2fc 0%,#e9f4fd 56%,#f4f9fd 100%)!important}
body[data-nova-page="05"] .nova-frame-design:after{display:none!important;content:none!important}
/* Smooth the artwork crop edge into the common sky background, no hard masking strip. */
body[data-nova-page="05"] .nova-frame-design>.art{-webkit-mask-image:linear-gradient(to bottom,transparent 0%,transparent 7.45%,#000 11%);mask-image:linear-gradient(to bottom,transparent 0%,transparent 7.45%,#000 11%);clip-path:none!important}