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ease}.lightbox-info{flex-shrink:0;align-self:center;max-width:50em;width:100%;height:10em;max-height:30vh;overflow-y:auto;text-align:center;padding:0.75em 1em;scrollbar-width:none}.lightbox-info::-webkit-scrollbar{display:none}.lightbox-caption{color:var(--color-text);font-family:var(--font-heading);font-size:1.2em;font-weight:400;margin-bottom:0.5em;transition:opacity 0.3s ease}.lightbox-meta{display:flex;flex-wrap:nowrap;align-items:center;justify-content:center;gap:0.75em;margin-top:0.5em;transition:opacity 0.3s ease}.lightbox-meta-group{display:flex;align-items:center;gap:0.4em;white-space:nowrap;color:var(--color-text);font-family:var(--font-meta);font-size:0.9em}.lightbox-meta-group .icon{color:var(--color-accent);display:flex;flex-shrink:0}.lightbox-meta-group .icon svg{width:0.9em;height:0.9em}@media (max-width: 768px){.lightbox-meta{flex-direction:column;gap:0.35em}.lightbox-meta-group{font-size:0.9em}}.empty-state{text-align:center;padding:4em 2em;background:var(--color-bg-secondary);border-radius:0.75em;border:0.0625em dashed var(--color-border);margin:2em 0}.empty-state .empty-icon{font-size:3em;color:var(--color-text-muted);margin-bottom:0.5em}.empty-state h3{font-family:var(--font-heading);font-size:var(--size-h3);margin-bottom:1em;color:var(--color-text-secondary)}.empty-state .empty-hint{margin-top:1em;color:var(--color-text-muted);font-size:0.9em;transition:color 0.3s ease}.empty-state code{font-family:var(--font-meta);background:var(--color-bg-card);padding:0.1em 0.4em;border-radius:0.2em;color:var(--color-accent);font-size:0.9em}.back-to-top{position:fixed;bottom:2em;right:2em;width:3em;height:3em;border-radius:50%;background-color:var(--color-bg-card);color:var(--color-text);border:0.0625em solid var(--color-border);box-shadow:0 0.25em 1em rgba(var(--rgb-black), 0.3);display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:990;opacity:0;visibility:hidden;transform:translateY(1.5em);transition:opacity 0.3s ease,visibility 0.3s ease,transform var(--transition-spring),background-color 0.3s ease,color 0.3s ease}.back-to-top:hover{background-color:var(--color-accent);color:rgba(var(--rgb-white), 1);border-color:var(--color-accent);transform:translateY(-0.2em)}.back-to-top.active{opacity:1;visibility:visible;transform:translateY(0)}.back-to-top svg{width:1.25em;height:1.25em}@media (max-width: 768px){.header-inner,.container,.footer-inner{padding:0 1em}.masonry-container{padding:1em}.footer-inner{flex-direction:column;gap:1em;text-align:center}.nav-toggle{display:block;visibility:visible;opacity:1;z-index:1002}.site-nav{position:fixed;top:4.5em;left:0;right:0;background:transparent;backdrop-filter:none;-webkit-backdrop-filter:none;padding:2em 1em;opacity:0;visibility:hidden;transform:translateY(-1em);pointer-events:none;z-index:998;height:auto;overflow:visible}.site-nav.nav-solid{background:var(--color-nav-bg)}.site-nav.active{background:var(--color-nav-bg);opacity:1 !important;visibility:visible !important;transform:translateY(0) !important;pointer-events:all !important}.site-nav ul{display:flex;flex-direction:column;gap:1.5em;align-items:center}.site-nav a{font-size:1.25em;font-weight:500;display:flex;align-items:center;justify-content:center}.site-nav .nav-icon{display:inline-flex;align-items:center;transform:translateY(-0.05em)}.back-to-top{bottom:1.5em;right:1.5em;width:2.75em;height:2.75em}.header-actions{gap:0.75em}.theme-toggle{width:2.75em;height:2.75em}.theme-toggle svg{width:1.4em;height:1.4em}.timeline-container{padding:2em 1em 4em}.about-header{flex-direction:column;text-align:center;gap:1em}.about-avatar{width:5em;height:5em}.series-badge{top:0.375em;right:0.375em;height:1.3em;padding:0 0.4em;gap:0.2em;border-radius:0.65em}.series-badge .icon svg{width:0.75em;height:0.75em}.series-badge .count{font-size:0.65em}}