.card.content-card[data-content-id],div.card.content-card[data-content-id]{background-color:var(--bg-card);color:var(--fg-1);border:1px solid var(--color-white-08);box-shadow:var(--shadow-card);border-radius:var(--radius-md);overflow:hidden;padding:0}.card.content-card[data-content-id]>.seo-hero-header,.card.content-card[data-content-id]>.seo-hero-header-noimage{margin:0;border-radius:0}.content-card .feed-item-header{color:var(--fg-1);border-radius:0}.content-card .feed-item-header .btn,.content-card .feed-item-header .item-options-btn{font-size:inherit}.content-card .feed-item-header .badge{font-size:.7rem}.seo-hero-header{position:relative;min-height:280px;max-height:350px;overflow:hidden;background:linear-gradient(135deg,var(--bg-dark) 0%,var(--bg-charcoal) 100%);margin:0;padding:0}.seo-hero-header .seo-hero-image{width:100%;height:100%;object-fit:cover;object-position:var(--focal-x, 50%) var(--focal-y, 50%);position:absolute;inset:0}.seo-hero-overlay{position:absolute;inset:0;background:none}.seo-hero-content,.seo-hero-content.image-content-overlay{position:absolute;bottom:0;left:0;right:0;padding:8px;background:#000000d9;backdrop-filter:none}.seo-hero-title{font-size:1.5rem;font-weight:600;color:var(--fg-1);margin:0 0 4px;line-height:1.3}.seo-hero-content.image-content-overlay .seo-hero-title,.seo-hero-content.image-content-overlay .seo-hero-title.item-title{color:var(--fg-1)}.main-content p.seo-hero-summary{color:var(--color-text-light-muted);font-size:.95rem;line-height:1.5;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.seo-hero-header-noimage{position:relative;min-height:180px;background:linear-gradient(135deg,var(--color-bg-navy) 0%,#2d2d4a 50%,var(--color-bg-navy) 100%);display:flex;align-items:flex-end;margin:0;padding:0}.seo-hero-header-noimage .seo-hero-content{position:relative;width:100%;background:linear-gradient(to top,rgba(0,0,0,.8) 0%,transparent 100%)}.seo-hero-reader-btn{position:absolute;top:16px;left:16px;z-index:10}.seo-hero-content .seo-hero-meta{margin-top:12px}.seo-hero-attribution{position:absolute;top:12px;right:12px;background:#000000bf;backdrop-filter:blur(4px);color:#ffffffa6;padding:4px 10px;border:none;border-radius:4px;font-size:.7rem;font-weight:400;z-index:10;box-shadow:none;transition:var(--transition-color)}.seo-hero-attribution a,.seo-hero-attribution a:link,.seo-hero-attribution a:visited{color:#ffffffa6;text-decoration:none;font-size:.7rem}.seo-hero-attribution a:hover{color:#ffffffe6}.seo-hero-author{display:flex;align-items:center;gap:12px}.seo-hero-author-link:hover .seo-hero-author-avatar{border-color:#8b5cf699}.seo-hero-avatar-fallback{position:absolute;width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#8b5cf6,#6d28d9);color:var(--fg-1);font-weight:600;font-size:1rem;display:none;align-items:center;justify-content:center}.seo-hero-author-avatar[src=""],.seo-hero-author-avatar:not([src]){display:none}.seo-hero-author-avatar[src=""]+.seo-hero-avatar-fallback,.seo-hero-author-avatar:not([src])+.seo-hero-avatar-fallback{display:flex}.main-content a.seo-hero-author-name:not(.btn):not(.nav-link):not(.connections-widget-action-btn):not(.dropdown-item){color:var(--fg-1);font-weight:600;font-size:.95rem;text-decoration:none;transition:var(--transition-color)}.main-content .content-card a.seo-hero-author-name[href*="/@"],.main-content .content-card a.seo-hero-author-name[href*="/user/"],.content-card a.seo-hero-author-name[href*="/@"],.content-card a.seo-hero-author-name[href*="/user/"],.main-content a.seo-hero-author-name,.main-content .content-card a.seo-hero-author-name,.main-content .seo-hero-content a.seo-hero-author-name,.content-card .seo-hero-content a.seo-hero-author-name,.card.content-card .seo-hero-author-name,a.seo-hero-author-name[href*="/@"],.seo-hero-author-name,.seo-hero-author-name:link,.seo-hero-author-name:visited{color:var(--fg-1);font-weight:600;font-size:.95rem;text-decoration:none;transition:var(--transition-color)}.main-content a.seo-hero-author-name:not(.btn):not(.nav-link):not(.connections-widget-action-btn):not(.dropdown-item):hover,.main-content .content-card a.seo-hero-author-name[href*="/@"]:hover,.main-content .content-card a.seo-hero-author-name[href*="/user/"]:hover,.content-card a.seo-hero-author-name[href*="/@"]:hover,.content-card a.seo-hero-author-name[href*="/user/"]:hover,.main-content a.seo-hero-author-name:hover,.main-content .content-card a.seo-hero-author-name:hover,.main-content .seo-hero-content a.seo-hero-author-name:hover,.content-card .seo-hero-content a.seo-hero-author-name:hover,.card.content-card .seo-hero-author-name:hover,a.seo-hero-author-name[href*="/@"]:hover,.seo-hero-author-name:hover{color:#a78bfa;text-decoration:none}.seo-hero-author-name-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.seo-hero-author .mas-author-member-badge{display:inline-flex;align-items:center;gap:4px;background:#f9685433;border:1px solid rgba(249,104,84,.4);border-radius:12px;padding:2px 8px;font-size:.75rem}.seo-hero-author .mas-author-member-badge-img{width:14px;height:14px;border-radius:50%}.seo-hero-author .mas-author-member-badge-text{color:var(--accent-coral);font-weight:500}.seo-content-wrapper{background:var(--bg-dark);padding:16px 12px 6px}@media(min-width:768px){.seo-content-wrapper{padding:20px 16px 8px}}@media(min-width:1200px){.seo-content-wrapper{padding:24px 20px 12px}}.seo-content-collapse-header{display:flex;align-items:center;justify-content:center;gap:10px;cursor:pointer;padding:10px 20px;background:#ffffff08;border-bottom:1px solid rgba(255,255,255,.06);color:#ffffff59;font-family:var(--font-ui);font-size:.75rem;font-weight:500;letter-spacing:1.5px;text-transform:uppercase;user-select:none;list-style:none;transition:var(--transition-background),color .2s ease}.seo-content-collapse-header::-webkit-details-marker{display:none}.seo-content-collapse-header::marker{display:none;content:""}.seo-content-collapse-header:hover{background:#ffffff0f;color:#ffffff8c}.seo-collapse-label{color:#ffffffb3;font-weight:600;letter-spacing:2px}.seo-collapse-icon{font-size:.6rem;opacity:.65}.seo-content-collapse-header:hover .seo-collapse-icon{opacity:.5}.seo-content-page{--seo-page-bg: #F5F5F5;--seo-page-text: #333333;--seo-page-text-secondary: #666666;--seo-page-border: rgba(0, 0, 0, .1);--color-parchment-bg: var(--seo-page-bg);--color-parchment-text: var(--seo-page-text);--color-parchment-secondary: var(--seo-page-text-secondary);--color-parchment-accent: var(--seo-page-text);--theme-bg: var(--seo-page-bg);--theme-text: var(--seo-page-text);--theme-text-secondary: var(--seo-page-text-secondary);--theme-border: var(--seo-page-border);background:var(--seo-page-bg);color:var(--seo-page-text);max-width:816px;margin:0 auto;padding:48px;box-shadow:-4px 0 20px #00000026,4px 0 20px #00000026,0 -4px 20px #00000026;border-radius:0;font-size:17px;line-height:1.8;hyphens:auto;-webkit-hyphens:auto}.seo-content-page[data-reader-theme=white]{--seo-page-bg: #FFFFFF;--seo-page-text: #1a1a1a;--seo-page-text-secondary: #666666;--seo-page-border: rgba(0, 0, 0, .1)}.seo-content-page[data-reader-theme=light]{--seo-page-bg: #F5F5F5;--seo-page-text: #333333;--seo-page-text-secondary: #666666;--seo-page-border: rgba(0, 0, 0, .1)}.seo-content-page[data-reader-theme=sepia]{--seo-page-bg: #F4ECD8;--seo-page-text: #5C4B37;--seo-page-text-secondary: #8B7355;--seo-page-border: rgba(92, 75, 55, .2)}.seo-content-page[data-reader-theme=dark]{--seo-page-bg: #1E1E1E;--seo-page-text: #E0E0E0;--seo-page-text-secondary: #A0A0A0;--seo-page-border: rgba(255, 255, 255, .1)}.seo-content-page[data-reader-theme=night]{--seo-page-bg: #0D0D0D;--seo-page-text: #B0B0B0;--seo-page-text-secondary: #808080;--seo-page-border: rgba(255, 255, 255, .08)}@media(max-width:767px){.seo-content-page{padding:32px 24px}}.seo-content-page p{margin:0 0 1.5em;text-align:justify;text-justify:inter-word;font-size:17px;line-height:1.8;color:var(--parchment-text)}.seo-content-page>:last-child{margin-bottom:0}.seo-content-page h1,.seo-content-page h2,.seo-content-page h3,.seo-content-page h4,.seo-content-page h5,.seo-content-page h6{color:var(--parchment-text);font-family:Crimson Text,Times New Roman,serif;font-weight:600;line-height:1.3;text-align:left}.seo-content-page h2{font-size:24px;font-weight:700;margin:2em 0 .75em}.seo-content-page h3{font-size:20px;font-weight:600;margin:1.5em 0 .5em}.seo-content-page h4{font-size:1.125rem;margin:1.5em 0 .5em}.seo-content-page .seo-page-title,.seo-content-page h1:first-child{font-family:Cormorant Garamond,Times New Roman,Georgia,serif;font-size:28px;font-weight:600;color:var(--parchment-text);margin:0 0 24px;line-height:1.3;text-align:center}.seo-content-page ul,.seo-content-page ol{margin:1em 0;padding-left:2em}.seo-content-page li{margin:.4em 0;line-height:1.7}.seo-content-page strong{font-weight:600;color:#4a3d2e}.seo-content-page a{color:var(--parchment-accent);text-decoration:underline}.seo-content-page a:hover{color:#6d5410}.seo-content-page blockquote{border-left:3px solid rgba(139,105,20,.4);margin:1.5em 0;padding:.5em 0 .5em 1.5em;font-style:italic;color:#6d5a45}.seo-content-page code{background:#5c4b371a;padding:.15em .4em;border-radius:3px;font-size:.9em}.seo-content-page pre{background:#5c4b3714;padding:1em;border-radius:4px;overflow-x:auto}.seo-content-page pre code{background:none;padding:0}.seo-content-page p.__se__katex{display:block;position:relative;margin:1.25em 0;padding:0;background:var(--block-surface);border:1px solid var(--block-border);border-radius:var(--block-radius);box-shadow:var(--block-shadow);overflow:hidden;text-align:left;line-height:1.5}.seo-content-page p.__se__katex:before{content:"Math";display:block;padding:5px 12px;font-family:var(--font-mono);font-size:10.5px;font-weight:var(--fw-semibold);letter-spacing:.08em;text-transform:uppercase;color:var(--block-label-fg);background:color-mix(in srgb,var(--color-primary) 10%,transparent);border-bottom:1px solid var(--block-seam)}.seo-content-page p.__se__katex .katexblock{display:block;padding:12px 16px;padding-left:2.25rem}.seo-content-page .katex-display{display:block;margin:0;text-align:center}.seo-content-page span.__se__katex{display:inline}.seo-content-page .katex{font-size:1.1em;color:var(--block-fg)}.seo-content-page .se-math-block-tab,.seo-content-page button.se-math-block-tab,.seo-content-page p.__se__katex>button,.seo-content-page .katex-header{display:none}.seo-content-page p.mas-numbered-para .num-label{font-weight:700;color:var(--parchment-accent)}.seo-content-page p.mas-numbered-para .mas-numbered-content{font-weight:700}.seo-paywall-icon{color:var(--parchment-accent)}.seo-paywall-title{color:var(--parchment-text);font-family:Cormorant Garamond,serif}.seo-paywall-text{color:var(--parchment-secondary)}.seo-paywall-summary-box{max-width:500px;background:#8b69141a;border-radius:8px;border:1px solid rgba(139,105,20,.3)}.seo-paywall-summary{font-style:italic;color:#6d5a45;margin:0}.seo-paywall-price{font-size:2rem;font-weight:700;color:var(--parchment-text)}.seo-paywall-price-note{color:var(--parchment-secondary);font-size:.85rem}.seo-author-wrapper{background:var(--bg-dark);padding:0}@media(min-width:768px){.seo-author-wrapper{padding:0}}@media(min-width:1200px){.seo-author-wrapper{padding:0}}.seo-author-wrapper .mas-hero-footer{padding-left:0;padding-right:0}.seo-author-wrapper .mas-hero-footer-inner,.seo-author-wrapper .mas-hero-footer-copyright{max-width:816px;margin-left:auto;margin-right:auto;padding-left:48px;padding-right:48px}@media(max-width:1199.98px){.seo-author-wrapper .mas-hero-footer-inner,.seo-author-wrapper .mas-hero-footer-copyright{padding-left:32px;padding-right:32px}}@media(max-width:800px){.seo-author-wrapper .mas-hero-footer-inner,.seo-author-wrapper .mas-hero-footer-copyright{padding-left:20px;padding-right:20px}}@media(max-width:600px){.seo-author-wrapper .mas-hero-footer-inner,.seo-author-wrapper .mas-hero-footer-copyright{padding-left:16px;padding-right:16px}}.seo-linked-wrapper{background:var(--bg-dark);padding:0 24px}@media(min-width:768px){.seo-linked-wrapper{padding:0 48px}}@media(min-width:1200px){.seo-linked-wrapper{padding:0 80px}}.seo-linked-header{color:var(--parchment-text);font-family:Cormorant Garamond,serif;font-size:1.25rem;font-weight:600;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid rgba(92,75,55,.2)}.seo-linked-item{background:#5c4b3714;border:1px solid rgba(92,75,55,.15);border-radius:6px;padding:10px 14px;margin-bottom:8px;cursor:pointer;transition:var(--transition-background),border-color .2s,transform .15s}.seo-linked-item:last-child{margin-bottom:0}.seo-linked-item:hover{background:#5c4b3726;border-color:#5c4b374d;transform:translate(4px)}.seo-linked-item strong{color:var(--parchment-text);display:block;font-size:.95rem}.seo-youtube-item{display:flex;align-items:center;gap:12px}.seo-youtube-info strong{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.seo-moral-rights{max-width:816px;margin:0 auto;padding:12px 48px;background:var(--parchment-bg);color:#5c4b3799;font-style:italic;border-top:1px solid rgba(92,75,55,.1)}.seo-content-wrapper .seo-action-row{background:var(--color-white-04);max-width:816px;margin:0 auto;padding:24px;border-top:1px solid var(--border-subtle-08, rgba(255, 255, 255, .08));border-radius:0;box-shadow:0 4px 20px #0000004d;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;color:var(--fg-2)}@media(max-width:767px){.seo-content-wrapper .seo-action-row{padding:12px 24px 24px}}.seo-content-wrapper .seo-action-row .interaction-btn.respond-btn,.seo-content-wrapper .seo-action-row .respond-btn{display:inline-flex;align-items:center;gap:6px;padding:.4rem .7rem;font-family:var(--font-ui);font-size:.9rem;font-weight:var(--fw-medium, 500);color:var(--color-primary-light, var(--color-primary));background:var(--color-primary-10);border:1px solid var(--color-primary-30);border-radius:6px;cursor:pointer;transition:var(--transition-all-fast, background-color .15s ease, border-color .15s ease)}.seo-content-wrapper .seo-action-row .interaction-btn.respond-btn:hover,.seo-content-wrapper .seo-action-row .respond-btn:hover,.seo-content-wrapper .seo-action-row .interaction-btn.respond-btn:focus-visible,.seo-content-wrapper .seo-action-row .respond-btn:focus-visible{background:var(--color-primary-25);border-color:var(--color-primary-50);color:var(--fg-1);outline:none}.seo-content-wrapper .seo-action-row .interaction-btn.respond-btn i,.seo-content-wrapper .seo-action-row .respond-btn i{font-size:.9em}.seo-action-wrapper{background:var(--bg-dark);padding:0 24px 24px}@media(min-width:768px){.seo-action-wrapper{padding:0 48px 32px}}@media(min-width:1200px){.seo-action-wrapper{padding:0 80px 40px}}.seo-action-wrapper .seo-action-row{background:var(--parchment-bg);max-width:816px;margin:0 auto;padding:16px 24px;box-shadow:0 4px 20px #0000004d;border-radius:2px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}.seo-action-row .btn{background:#5c4b371a;border:1px solid rgba(92,75,55,.3);color:var(--parchment-text)}.seo-action-row .btn:hover{background:#5c4b3733;border-color:#5c4b3780}.seo-action-row .response-call-badge{background:linear-gradient(135deg,#8b691433,#8b69141a);border:1px solid rgba(139,105,20,.4);color:var(--parchment-accent)}.seo-report-link{font-size:.85rem;color:var(--parchment-secondary);text-decoration:none}.seo-report-link:hover{color:var(--parchment-text)}.seo-feed-footer{background:var(--bg-card);border-top:1px solid var(--color-primary-30)}.seo-section-header{color:#333;font-family:var(--font-ui);font-size:1.05rem;font-weight:600;letter-spacing:.01em}.seo-section-header i{color:var(--color-primary, #8b5a9e);opacity:.6}.seo-related-card{background:#fff;border:1px solid rgba(0,0,0,.08);border-radius:.75rem;cursor:pointer;position:relative;transition:border-color .2s ease,box-shadow .2s ease;box-shadow:0 1px 4px #0000000f}.seo-related-card:hover{border-color:var(--color-primary-30);box-shadow:0 4px 12px #0000001a}.seo-related-card .card-title{font-family:var(--font-ui);font-size:.95rem;font-weight:600;color:#212529;padding-right:50px;word-wrap:break-word;overflow-wrap:break-word}.seo-related-card .card-text{color:#6c757d;font-size:.82rem}.seo-related-card .seo-content-badge{position:absolute;top:10px;right:10px;z-index:1}.seo-content-badge{background:var(--color-primary-10);border:1px solid var(--color-primary-20);color:#8b5a9e;font-family:var(--font-ui);font-size:.65rem;font-weight:600;letter-spacing:.5px;text-transform:uppercase;padding:3px 8px;border-radius:4px}.seo-date-text{font-size:.75rem;color:#9ca3af}.seo-comments-section{display:none;margin-top:16px}.seo-comments-section.section-visible{display:block}.seo-linked-toggle-section{display:none;margin-top:16px}.seo-linked-toggle-section.section-visible{display:block}.linked-content-sidebar{border:1px solid var(--color-primary-30)}.linked-sidebar-group{margin-bottom:14px}.linked-sidebar-group:last-child{margin-bottom:0}.linked-sidebar-group-title{font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--fg-metadata);margin-bottom:8px}.linked-sidebar-item{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:6px;cursor:pointer;transition:var(--transition-background);margin-bottom:4px}.linked-sidebar-item:last-child{margin-bottom:0}.linked-sidebar-item:hover{background:var(--color-primary-12)}.linked-sidebar-item.seo-youtube-item{flex-direction:column;align-items:stretch;gap:6px}.linked-sidebar-thumb{width:100%;height:auto;aspect-ratio:16 / 9;object-fit:cover;border-radius:4px;flex-shrink:0}.linked-sidebar-book-cover{width:36px;height:54px;object-fit:cover;border-radius:3px;flex-shrink:0}.linked-sidebar-item-title{color:var(--color-gray-border);font-size:.9rem;font-weight:500;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.linked-sidebar-item-meta{color:var(--fg-metadata);font-size:.8rem;margin-top:2px}.seo-references-row{background:var(--parchment-bg);max-width:816px;margin:0 auto;padding:16px 48px;border-top:1px solid rgba(92,75,55,.15);box-shadow:none;border-radius:0}@media(max-width:767px){.seo-references-row{padding:12px 24px}}.seo-references-summary{cursor:pointer;list-style:none;display:flex;align-items:center;margin-bottom:0;border-bottom:none;padding:12px 0;user-select:none}.seo-references-summary::-webkit-details-marker{display:none}.seo-references-summary:after{content:"\f078";font-family:"Font Awesome 5 Free";font-weight:900;font-size:.75rem;margin-left:auto;transition:transform .2s ease;color:var(--parchment-secondary)}.seo-references-details[open]>.seo-references-summary{border-bottom:1px solid rgba(92,75,55,.2);margin-bottom:0}.seo-references-details[open]>.seo-references-summary:after{transform:rotate(180deg)}.seo-references-list{padding-top:16px}.seo-reference-item{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid rgba(92,75,55,.1)}.seo-reference-item:last-child{border-bottom:none;padding-bottom:0}.seo-reference-text{flex:1;min-width:0;font-size:.9rem;line-height:1.5;color:var(--parchment-text)}.seo-reference-text em{font-style:italic}.seo-reference-links{display:flex;align-items:center;gap:8px;flex-shrink:0}.seo-reference-link{color:var(--parchment-accent);font-size:.85rem;text-decoration:none;transition:var(--transition-color)}.seo-reference-link:hover{color:#6d5410}.seo-reference-doi{color:var(--parchment-accent);font-size:.75rem;font-weight:600;text-decoration:none;padding:2px 6px;border:1px solid rgba(139,105,20,.3);border-radius:3px;transition:var(--transition-background),color .2s}.seo-reference-doi:hover{background:#8b69141a;color:#6d5410}.seo-detail-layout{display:block;max-width:1200px;margin:0 auto;padding:1.5rem 1rem}@media(min-width:992px){.seo-detail-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:28px;align-items:start}}.seo-right-rail{display:none}@media(min-width:992px){.seo-right-rail{display:block;position:sticky;top:80px;max-height:calc(100vh - 100px);overflow-y:auto;scrollbar-width:thin}}.seo-right-rail .seo-rail-section{background:var(--bg-card, #1a1a2e);border:1px solid var(--color-white-08);border-radius:8px;padding:14px 16px;margin-bottom:12px}.seo-right-rail .seo-rail-section.seo-rail-ad{padding:8px;background:transparent;border:1px dashed var(--color-white-08)}.seo-right-rail .seo-rail-heading{font-family:var(--font-ui);font-size:.8rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--fg-4);margin:0 0 10px;display:flex;align-items:center}.seo-right-rail .seo-rail-list{list-style:none;padding:0;margin:0 0 8px}.seo-right-rail .seo-rail-item{border-top:1px solid var(--color-white-06);padding:8px 0}.seo-right-rail .seo-rail-item:first-child{border-top:none;padding-top:2px}.seo-right-rail .seo-rail-link{text-decoration:none;color:var(--fg-2);display:block}.seo-right-rail .seo-rail-link:hover .seo-rail-item-title{color:var(--color-primary)}.seo-right-rail .seo-rail-item-title{font-family:Georgia,serif;font-size:.85rem;line-height:1.35;color:var(--fg-2);transition:color .2s;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.seo-right-rail .seo-rail-item-meta{font-family:var(--font-ui);font-size:.7rem;color:var(--color-text-white-40);margin-top:2px}.seo-mobile-below{display:block;margin-top:24px;padding:0 1rem}@media(min-width:992px){.seo-mobile-below{display:none}}.seo-mobile-section{background:var(--bg-card, #1a1a2e);border:1px solid var(--color-white-08);border-radius:8px;padding:14px 16px;margin-bottom:12px}.seo-mobile-section.seo-mobile-ad{padding:8px;background:transparent;border:1px dashed var(--color-white-08)}.seo-mobile-heading{font-family:var(--font-ui);font-size:.8rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--fg-4);margin:0 0 12px;display:flex;align-items:center}.seo-mobile-scroll{display:flex;gap:10px;overflow-x:auto;scrollbar-width:thin;-webkit-overflow-scrolling:touch;padding-bottom:6px;scroll-snap-type:x mandatory}.seo-mobile-card{flex:0 0 220px;background:var(--color-white-03);border:1px solid var(--color-white-06);border-radius:6px;padding:10px 12px;text-decoration:none;color:var(--fg-2);scroll-snap-align:start;transition:border-color .2s,transform .2s}.seo-mobile-card:hover,.seo-mobile-card:active{border-color:var(--color-primary-30);color:var(--fg-2)}.seo-mobile-card-title{font-family:Georgia,serif;font-size:.85rem;line-height:1.35;color:var(--fg-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.seo-mobile-card-meta{font-family:var(--font-ui);font-size:.7rem;color:var(--color-text-white-40);margin-top:4px}.seo-mobile-cta{text-align:center}.seo-mobile-cta .seo-mobile-heading{justify-content:center}.seo-mobile-cta-text{font-family:var(--font-ui);font-size:.8rem;color:var(--fg-4);line-height:1.5;margin:0 0 12px}.seo-ad-slot{margin:0 0 12px;border:1px dashed var(--color-white-08);border-radius:8px;background:transparent;padding:8px}.seo-ad-slot--rail_top,.seo-ad-slot--rail_mid,.seo-ad-slot--rail_bottom{min-height:270px}.seo-ad-slot--end_of_article{min-height:280px;margin:32px auto;max-width:728px}.seo-ad-label{font-family:var(--font-ui);font-size:.62rem;font-weight:600;text-transform:uppercase;letter-spacing:.12em;color:var(--color-text-white-30);text-align:center;margin:0 0 6px;opacity:.7}.seo-ad-slot-inner{min-height:inherit}.seo-ad-slot--rail_top .seo-ad-slot-inner,.seo-ad-slot--rail_mid .seo-ad-slot-inner,.seo-ad-slot--rail_bottom .seo-ad-slot-inner{max-height:600px;overflow:hidden}.seo-related-layout{margin-top:32px}.seo-related-row+.seo-related-row{margin-top:16px}.seo-related-stack .seo-related-card{height:auto}.seo-book-card .card-body{padding:14px 16px}.seo-book-cover-wrap{flex:0 0 70px;max-width:70px}.seo-book-cover{width:100%;height:auto;border-radius:4px;box-shadow:0 2px 6px #00000040;display:block}.seo-book-meta{min-width:0}.seo-book-rating{color:var(--accent-gold, #d4a017);font-size:.78rem;letter-spacing:1px}.seo-book-excerpt{margin-bottom:10px;line-height:1.45}.seo-book-buy{margin-top:8px}.seo-book-buy .dropdown-toggle{padding:4px 12px;font-size:.78rem}.seo-book-buy .dropdown-menu{min-width:200px;padding:6px 0}.seo-book-buy .dropdown-item{padding:6px 14px;font-size:.85rem;font-family:var(--font-ui)}.seo-book-buy .dropdown-item i{width:16px;text-align:center}.seo-book-disclosure{font-size:.66rem;color:var(--color-text-white-30);margin-top:6px;font-family:var(--font-ui);font-style:italic}#background-image-modal .modal-content{border:none;border-radius:12px;overflow:hidden;background-color:var(--bg-card)}#background-image-modal .modal-header{background-color:var(--bg-card);border:none;padding:1.5rem}#background-image-modal .modal-body{background-color:var(--bg-card);padding:2rem}#background-image-modal .modal-footer{background-color:var(--bg-card);border:none;padding:1.5rem}.background-search-container{position:relative;margin-bottom:1.5rem}.clear-search-btn{position:absolute;right:10px;top:50%;transform:translateY(-50%);background:none;border:none;color:var(--color-gray-mid);cursor:pointer;font-size:1.2rem;padding:0;width:20px;height:20px;display:flex;align-items:center;justify-content:center}.background-images-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:1rem;max-height:400px;overflow-y:auto;padding:.5rem}.background-image-item{position:relative;border-radius:.5rem;overflow:hidden;cursor:pointer;transition:var(--transition-all-slow);background:var(--fg-body);aspect-ratio:16/9}.background-image-item img{width:100%;height:100%;object-fit:cover;transition:opacity .3s ease}.background-image-item:hover img{opacity:.8}.background-image-overlay{position:absolute;inset:0;background:linear-gradient(to bottom,transparent 0%,transparent 60%,rgba(0,0,0,.8) 100%);opacity:0;transition:opacity .3s ease;display:flex;align-items:flex-end;padding:1rem}.background-image-item:hover .background-image-overlay{opacity:1}.background-loading{display:flex;justify-content:center;align-items:center;padding:2rem;color:var(--color-gray-mid)}.background-loading .spinner-border{color:var(--color-link-blue)}.background-error{text-align:center;padding:2rem;color:var(--color-danger)}.background-error i{font-size:3rem;margin-bottom:1rem}.background-no-results{text-align:center;padding:2rem;color:var(--color-gray-mid)}.background-no-results i{font-size:3rem;margin-bottom:1rem}.load-more-container{text-align:center;padding:1rem}#load-more-btn{background-color:var(--color-link-blue);border:none;color:var(--fg-1);padding:.75rem 2rem;border-radius:.5rem;font-weight:500;transition:var(--transition-all-slow)}#load-more-btn:hover{background-color:var(--color-link-blue-hover);transform:translateY(-1px)}#load-more-btn:disabled{background-color:var(--fg-muted);cursor:not-allowed;transform:none}.bg-attribution-card,#bg-attribution-card{position:absolute;bottom:16px;right:16px;background:#000000d9;backdrop-filter:none;color:var(--color-text-light-muted);padding:8px 16px;border-left:3px solid var(--accent-indigo);font-size:.75rem;max-width:300px;display:flex;align-items:center;gap:8px;box-shadow:0 4px 12px #0000004d;transition:var(--transition-all-slow);cursor:pointer;z-index:10;pointer-events:auto}.bg-attribution-card:hover,#bg-attribution-card:hover{color:var(--accent-indigo)}.bg-attribution-card i,#bg-attribution-card i{color:var(--accent-indigo);font-size:.75rem;flex-shrink:0}.bg-attribution-card .attribution-text,#bg-attribution-card .attribution-text{font-weight:500;text-decoration:none;margin:0;line-height:1.2;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0;flex:1}@keyframes gentle-glow{0%,to{text-shadow:0 0 4px rgba(255,255,255,.3)}50%{text-shadow:0 0 8px rgba(255,255,255,.6)}}.remove-background-btn{position:absolute;top:10px;left:10px;background:#dc3545e6;color:var(--fg-1);border:none;padding:.5rem;border-radius:.25rem;font-size:.875rem;backdrop-filter:blur(5px);transition:var(--transition-all-slow)}@media(max-width:768px){.background-images-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:.75rem;max-height:300px}#background-image-modal .modal-body{padding:1rem}.background-image-item{aspect-ratio:4/3}#bg-attribution-card{position:static;margin-top:.5rem;max-width:none}}.mas-editor-table{width:100%;border-collapse:collapse;margin:1.25em 0;font-size:.95em;line-height:1.55;table-layout:auto;background:var(--block-surface);border:1px solid var(--block-border);border-radius:var(--block-radius);box-shadow:var(--block-shadow);overflow:hidden;color:var(--block-fg)}.mas-editor-table thead th{background:color-mix(in srgb,var(--block-fg) 5%,transparent);color:var(--block-fg);font-family:var(--font-ui);font-weight:var(--fw-semibold);padding:8px 12px;text-align:left;border-bottom:1px solid var(--block-border);border-right:1px solid var(--block-seam);min-width:80px}.mas-editor-table thead th:last-child{border-right:none}.mas-editor-table tbody td{padding:7px 12px;border-bottom:1px solid var(--block-seam);border-right:1px solid var(--block-seam);vertical-align:top;min-width:80px}.mas-editor-table tbody td:last-child{border-right:none}.mas-editor-table tbody tr:last-child td{border-bottom:none}.mas-editor-table tbody tr:nth-child(2n) td{background:color-mix(in srgb,var(--block-fg) 2%,transparent)}.mas-editor-table th:focus,.mas-editor-table td:focus{outline:2px solid var(--color-primary);outline-offset:-2px;background:var(--color-primary-08)}.mas-table-size-picker{position:fixed;background:var(--bg-card);border:1px solid var(--border-subtle-10);border-radius:var(--radius-md);box-shadow:var(--shadow-dropdown);padding:10px;z-index:10400;user-select:none}.mas-table-size-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:3px}.mas-table-size-cell{width:26px;height:26px;border:1px solid var(--color-white-12);border-radius:var(--radius-sm);background:transparent;cursor:pointer;padding:0;transition:background-color var(--transition-fast),border-color var(--transition-fast)}.mas-table-size-cell.highlighted{background:var(--color-primary);border-color:var(--color-primary)}.mas-table-size-label{text-align:center;margin-top:6px;font-family:var(--font-mono);font-size:11px;color:var(--fg-4);min-height:1.2em}@media(max-width:480px){.mas-table-size-grid{grid-template-columns:repeat(4,1fr)}.mas-table-size-cell{width:44px;height:44px}}.mas-table-controller,.chart-block-controller,.image-block-controller,.excalidraw-block-controller,.mas-block-controller{position:fixed;display:flex;align-items:center;gap:2px;padding:4px 6px;background:var(--bg-card);border:1px solid var(--border-subtle-10);border-radius:var(--radius-full);box-shadow:var(--shadow-dropdown);z-index:10399;pointer-events:auto;font-family:var(--font-ui)}.mas-table-ctrl-btn,.mas-block-ctrl-btn{display:flex;align-items:center;justify-content:center;width:28px;height:28px;border:none;border-radius:var(--radius-full);background:transparent;color:var(--fg-3);cursor:pointer;padding:0;transition:background-color var(--transition-fast),color var(--transition-fast);flex-shrink:0}.mas-table-ctrl-btn:hover,.mas-block-ctrl-btn:hover{background:var(--color-primary-20);color:var(--color-primary)}.mas-table-ctrl-btn.danger,.mas-block-ctrl-btn.danger{color:color-mix(in srgb,var(--color-danger) 80%,transparent)}.mas-table-ctrl-btn.danger:hover,.mas-block-ctrl-btn.danger:hover{background:var(--color-danger-15);color:var(--color-danger)}.mas-table-ctrl-sep,.mas-block-ctrl-sep{width:1px;height:16px;background:var(--border-subtle-10);flex-shrink:0;margin:0 2px}.mas-table-ctrl-btn svg,.mas-block-ctrl-btn svg{width:14px;height:14px;display:block}@media(max-width:600px){.mas-table-controller,.chart-block-controller,.image-block-controller,.excalidraw-block-controller,.mas-block-controller{flex-wrap:wrap;max-width:240px;border-radius:var(--radius-md)}.mas-table-ctrl-btn,.mas-block-ctrl-btn{width:40px;height:40px}.mas-table-ctrl-sep,.mas-block-ctrl-sep{display:none}}.lean-code-block{position:relative;margin:1.25em 0;background:var(--block-surface);border:1px solid var(--block-border);border-radius:var(--block-radius);box-shadow:var(--block-shadow);overflow:hidden}.lean-header{display:flex;align-items:center;gap:8px;padding:6px 10px;background:transparent;border-bottom:1px solid var(--block-seam);user-select:none;cursor:default}.lean-label{display:inline-flex;align-items:center;gap:6px;font-family:var(--font-mono);font-size:10.5px;font-weight:var(--fw-semibold);letter-spacing:.06em;text-transform:uppercase;color:var(--block-label-fg);user-select:none}.lean-label:before{content:"";display:inline-block;width:10px;height:10px;border-radius:2px;background:color-mix(in srgb,var(--accent-indigo) 25%,transparent);border:1px solid color-mix(in srgb,var(--accent-indigo) 45%,transparent)}.lean-check-btn{margin-left:auto;padding:3px 10px;font-family:var(--font-ui);font-size:11px;font-weight:var(--fw-semibold);letter-spacing:.02em;color:var(--color-primary);background:var(--color-primary-12);border:1px solid var(--color-primary-30);border-radius:var(--radius-sm);cursor:pointer;transition:background-color var(--transition-fast),border-color var(--transition-fast)}.lean-check-btn:hover{background:var(--color-primary-25);border-color:var(--color-primary-50)}.lean-check-btn:disabled{opacity:.5;cursor:not-allowed}.lean-check-btn.loading{pointer-events:none}.lean-code-block.read-only .lean-check-btn{display:none}.lean-code-block.read-only .lean-header{border-bottom-color:var(--block-seam)}.lean-status{font-family:var(--font-ui);font-size:10.5px;font-weight:var(--fw-semibold);padding:2px 8px;border-radius:var(--radius-full);user-select:none}.lean-status.verified{color:var(--color-success);background:var(--color-success-15);border:1px solid var(--color-success-30)}.lean-status.error{color:var(--color-danger);background:var(--color-danger-15);border:1px solid var(--color-danger-30)}.lean-status.checking{color:#b58900;background:var(--color-warning-15);border:1px solid var(--color-warning-30)}.lean-code-editor{display:flex;overflow-x:auto;background:color-mix(in srgb,var(--block-fg) 4%,transparent)}.lean-code-editor>pre{flex:1;margin:0;padding:0;overflow:visible;font-size:0;background:transparent;border:none;color:inherit}.lean-code-editor>pre>.lean-code-input{display:block;font-size:13px;padding:10px 12px;margin:0;vertical-align:top}.lean-line-numbers{flex-shrink:0;padding:10px 8px 10px 10px;min-width:2.25rem;text-align:right;font-family:var(--font-mono);font-size:13px;line-height:1.55;color:color-mix(in srgb,var(--block-fg) 30%,transparent);background:color-mix(in srgb,var(--block-fg) 3%,transparent);border-right:1px solid var(--block-seam);user-select:none;white-space:pre}.lean-code-input{flex:1;min-height:3.75rem;padding:10px 12px;margin:0;font-family:var(--font-mono);font-size:13px;line-height:1.55;color:var(--block-fg);background:transparent;border:none;outline:none;white-space:pre;overflow-x:visible;tab-size:2}.lean-code-input:focus{background:color-mix(in srgb,var(--color-primary) 6%,transparent)}.lean-code-block.read-only .lean-code-input{cursor:default;user-select:text}.lean-diagnostics{border-top:1px solid var(--block-seam)}.lean-diagnostics:empty{display:none}.lean-diagnostic-item{display:flex;gap:8px;padding:6px 12px;font-family:var(--font-mono);font-size:12px;line-height:1.45;border-left:3px solid transparent}.lean-diagnostic-item.error{color:var(--color-danger);border-left-color:var(--color-danger);background:var(--color-danger-08)}.lean-diagnostic-item.warning{color:#b58900;border-left-color:var(--color-warning);background:var(--color-warning-08)}.lean-diagnostic-item.information{color:var(--color-info);border-left-color:var(--color-info);background:var(--color-info-08)}.lean-diagnostic-loc{flex-shrink:0;color:var(--block-label-fg)}.lean-diagnostic-msg{flex:1;word-break:break-word}pre.lean-diagnostic-msg{margin:0;padding:0;font-family:inherit;font-size:inherit;line-height:inherit;color:inherit;background:none;border:none;white-space:pre-wrap;word-break:break-word}.lean-goal-state{padding:8px 12px;font-family:var(--font-mono);font-size:12.5px;line-height:1.55;color:var(--color-primary);background:var(--color-primary-08);border-top:1px solid color-mix(in srgb,var(--color-primary) 18%,transparent);white-space:pre-wrap}.lean-goal-state pre{margin:0;padding:0;font-family:inherit;font-size:inherit;line-height:inherit;color:inherit;background:none;white-space:pre-wrap;word-break:break-word}.lean-verified{display:inline-flex;align-items:center;gap:4px;font-size:10.5px;font-weight:var(--fw-semibold);color:var(--color-success);background:var(--color-success-15);padding:2px 8px;border-radius:var(--radius-full);border:1px solid var(--color-success-30)}.lean-goal-panel{margin:10px 12px 12px;border:1px solid color-mix(in srgb,var(--color-primary) 22%,transparent);border-radius:var(--radius-sm);overflow:hidden}.lean-goal-header{display:flex;justify-content:space-between;align-items:center;padding:6px 12px;background:var(--color-primary-08);border-bottom:1px solid color-mix(in srgb,var(--color-primary) 18%,transparent)}.lean-goal-title{font-size:10.5px;font-weight:var(--fw-semibold);color:var(--color-primary);text-transform:uppercase;letter-spacing:.06em}.lean-goal-nav{display:flex;align-items:center;gap:8px}.lean-goal-nav button{background:var(--color-primary-15);border:none;color:var(--color-primary);width:22px;height:22px;border-radius:var(--radius-sm);cursor:pointer;font-size:11px;display:flex;align-items:center;justify-content:center}.lean-goal-nav button:disabled{opacity:.3;cursor:default}.lean-goal-nav button:not(:disabled):hover{background:var(--color-primary-30)}.lean-goal-step{font-size:10.5px;color:var(--block-muted-fg)}.lean-goal-body{padding:10px 12px}.lean-hypotheses{margin-bottom:8px}.lean-hypothesis{font-family:var(--font-mono);font-size:12.5px;color:var(--block-muted-fg);padding:2px 0;line-height:1.55}.lean-goal-separator{color:var(--color-primary);font-weight:700;font-size:13px;padding:4px 0;border-top:1px solid color-mix(in srgb,var(--color-primary) 18%,transparent);margin-top:4px}.lean-goal-target{font-family:var(--font-mono);font-size:13px;color:var(--block-fg);padding:6px 0;line-height:1.6}.lean-goal-target .katex{font-size:1.1em}.lean-contributions{margin:12px;border-top:1px solid var(--block-seam);padding-top:10px}.lean-contributions-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.lean-contributions-title{font-family:var(--font-mono);font-size:10.5px;font-weight:var(--fw-semibold);color:var(--block-label-fg);text-transform:uppercase;letter-spacing:.06em}.lean-submit-proof-btn{font-family:var(--font-ui);font-size:11px;padding:3px 10px;border-radius:var(--radius-sm);border:1px solid var(--color-primary-30);background:var(--color-primary-10);color:var(--color-primary);cursor:pointer;transition:background-color var(--transition-fast)}.lean-submit-proof-btn:hover{background:var(--color-primary-25)}.lean-contribution-card{background:color-mix(in srgb,var(--block-fg) 4%,transparent);border-radius:var(--radius-sm);padding:10px;margin-bottom:8px;border:1px solid var(--block-seam)}.lean-contribution-meta{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px;font-size:11px;color:var(--block-label-fg)}.lean-contribution-badge{font-family:var(--font-ui);font-size:10px;padding:1px 8px;border-radius:var(--radius-full);font-weight:600}.lean-contribution-badge.verified{background:var(--color-success-15);color:var(--color-success);border:1px solid var(--color-success-30)}.lean-contribution-badge.failed{background:var(--color-danger-15);color:var(--color-danger);border:1px solid var(--color-danger-30)}.lean-contribution-badge.pending{background:var(--color-warning-15);color:#b58900;border:1px solid var(--color-warning-30)}.lean-contribution-code{font-family:var(--font-mono);font-size:12px;color:var(--block-fg);background:color-mix(in srgb,var(--block-fg) 6%,transparent);padding:8px;border-radius:var(--radius-sm);white-space:pre-wrap;max-height:200px;overflow-y:auto}.lean-vote-row{display:flex;gap:12px;margin-top:6px;align-items:center}.lean-vote-btn{background:none;border:none;color:var(--block-label-fg);cursor:pointer;font-size:12px;padding:2px 4px;transition:color var(--transition-fast)}.lean-vote-btn:hover{color:var(--block-fg)}.lean-vote-count{font-size:11px;color:var(--block-muted-fg)}.lean-submit-form{padding:8px 0 0;margin-bottom:8px}.seo-content-page .lean-code-block:before{content:"Lean";display:block;padding:5px 12px;font-family:var(--font-mono);font-size:10.5px;font-weight:var(--fw-semibold);letter-spacing:.08em;text-transform:uppercase;color:var(--block-label-fg);background:color-mix(in srgb,var(--accent-indigo) 10%,transparent);border-bottom:1px solid var(--block-seam)}.seo-content-page .lean-code-block:after{content:"? Unverified";position:absolute;top:4px;right:10px;font-family:var(--font-mono);font-size:10px;font-weight:var(--fw-semibold);letter-spacing:.04em;padding:1px 7px;border-radius:999px;color:var(--block-muted-fg, var(--block-label-fg));background:color-mix(in srgb,var(--block-fg) 6%,transparent);border:1px solid color-mix(in srgb,var(--block-fg) 12%,transparent);pointer-events:none}.seo-content-page .lean-code-block[data-lean-result*='"success":true']:after{content:"\2713Verified";color:#2e7d32;background:color-mix(in srgb,#2e7d32 12%,transparent);border-color:color-mix(in srgb,#2e7d32 30%,transparent)}.seo-content-page .lean-code-block[data-lean-result*='"success":false']:after{content:"\2717 Errors";color:#c62828;background:color-mix(in srgb,#c62828 12%,transparent);border-color:color-mix(in srgb,#c62828 30%,transparent)}.seo-content-page[data-reader-theme=dark] .lean-code-block[data-lean-result*='"success":true']:after,.seo-content-page[data-reader-theme=night] .lean-code-block[data-lean-result*='"success":true']:after{color:#66bb6a;background:color-mix(in srgb,#66bb6a 18%,transparent);border-color:color-mix(in srgb,#66bb6a 35%,transparent)}.seo-content-page[data-reader-theme=dark] .lean-code-block[data-lean-result*='"success":false']:after,.seo-content-page[data-reader-theme=night] .lean-code-block[data-lean-result*='"success":false']:after{color:#ef5350;background:color-mix(in srgb,#ef5350 18%,transparent);border-color:color-mix(in srgb,#ef5350 35%,transparent)}.chart-block{position:relative;margin:1.25em 0;background:var(--block-surface);border:1px solid var(--block-border);border-radius:var(--block-radius);box-shadow:var(--block-shadow);overflow:hidden}.chart-header{display:flex;align-items:center;gap:8px;padding:6px 10px;background:transparent;border-bottom:1px solid var(--block-seam);user-select:none;cursor:default}.chart-label{display:inline-flex;align-items:center;gap:6px;font-family:var(--font-mono);font-size:10.5px;font-weight:var(--fw-semibold);letter-spacing:.06em;text-transform:uppercase;color:var(--block-label-fg);user-select:none}.chart-label:before{content:"";display:inline-block;width:10px;height:10px;border-radius:2px;background:color-mix(in srgb,var(--accent-teal) 25%,transparent);border:1px solid color-mix(in srgb,var(--accent-teal) 45%,transparent)}.chart-type-badge{font-family:var(--font-ui);font-size:10px;font-weight:var(--fw-semibold);padding:1px 8px;border-radius:var(--radius-full);background:color-mix(in srgb,var(--accent-teal) 15%,transparent);color:var(--accent-teal);border:1px solid color-mix(in srgb,var(--accent-teal) 30%,transparent);text-transform:capitalize;letter-spacing:.03em}.chart-edit-btn{margin-left:auto;display:flex;align-items:center;justify-content:center;width:24px;height:24px;padding:0;border:none;border-radius:var(--radius-sm);background:transparent;color:var(--block-muted-fg);cursor:pointer;transition:background-color var(--transition-fast),color var(--transition-fast)}.chart-edit-btn:hover{background:var(--color-primary-15);color:var(--color-primary)}.chart-block.read-only .chart-edit-btn,.chart-block.read-only .chart-header{display:none}.chart-canvas-wrap{padding:14px}.chart-canvas-wrap canvas{width:100%!important;max-height:500px}.chart-modal-backdrop{position:fixed;inset:0;background:#000000bf;z-index:10400;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .2s ease}.chart-modal-backdrop.visible{opacity:1}.chart-modal{width:95%;max-width:1000px;max-height:90vh;display:flex;flex-direction:column;overflow:hidden;transform:scale(.95);opacity:0;transition:transform .2s ease,opacity .2s ease}.chart-modal.visible{transform:scale(1);opacity:1}.chart-modal-header{display:flex;justify-content:space-between;align-items:center;padding:1rem 1.25rem;border-bottom:1px solid var(--color-white-08);flex-shrink:0}.chart-modal-title{margin:0;font-size:1.125rem;font-weight:600;color:#fff}.chart-modal-close{width:32px;height:32px;background:var(--color-white-08);border:none;border-radius:6px;color:#fff9;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1.25rem;transition:var(--transition-background),color .15s}.chart-modal-close:hover{background:#ef44444d;color:#fff}.chart-modal-body{display:flex;flex:1;min-height:0;overflow:hidden}.chart-modal-controls{flex:0 0 50%;max-width:50%;overflow-y:auto;padding:1rem 1.25rem;border-right:1px solid rgba(255,255,255,.06)}.chart-modal-preview{flex:1;display:flex;flex-direction:column;padding:1rem 1.25rem;overflow-y:auto}.chart-preview-title{font-size:.7rem;font-weight:600;color:#fff6;text-transform:uppercase;letter-spacing:.05em;margin-bottom:.75rem}.chart-preview-canvas-wrap{flex:1;display:flex;align-items:center;justify-content:center;min-height:250px}.chart-preview-canvas-wrap canvas{width:100%!important;max-height:400px}.chart-modal-footer{display:flex;justify-content:flex-end;gap:.75rem;padding:1rem 1.25rem;border-top:1px solid var(--color-white-08);flex-shrink:0}.chart-modal-btn{padding:.5rem 1.25rem;font-size:.85rem;font-weight:500;border:none;border-radius:var(--radius-sm, 4px);cursor:pointer;transition:var(--transition-background),color .15s}.chart-modal-btn-cancel{background:var(--color-white-08);color:#ffffffb3}.chart-modal-btn-cancel:hover{background:var(--color-white-15);color:#fff}.chart-modal-btn-insert{background:var(--color-accent, #7a4f8c);color:#fff}.chart-modal-btn-insert:hover{opacity:.85}.chart-section-label{font-size:.7rem;font-weight:600;color:#fff6;text-transform:uppercase;letter-spacing:.05em;margin-bottom:.5rem}.chart-type-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;margin-bottom:1rem}.chart-type-btn{display:flex;flex-direction:column;align-items:center;gap:4px;padding:.5rem .25rem;background:#ffffff0a;border:1px solid var(--color-white-08);border-radius:var(--radius-sm, 4px);color:#fff9;cursor:pointer;font-size:.65rem;transition:all .12s}.chart-type-btn:hover{background:#7c3aed26;border-color:#7c3aed4d;color:#fff}.chart-type-btn.active{background:#7c3aed40;border-color:var(--color-accent, #7a4f8c);color:#fff}.chart-type-btn span{font-size:.65rem;font-weight:500}.chart-collapsible{border:1px solid rgba(255,255,255,.06);border-radius:var(--radius-sm, 4px);margin-bottom:.5rem;overflow:hidden}.chart-section-toggle{display:flex;justify-content:space-between;align-items:center;width:100%;padding:.5rem .75rem;background:#ffffff08;border:none;color:#fffc;font-size:.8rem;font-weight:600;cursor:pointer;transition:background .12s}.chart-section-toggle:hover{background:#ffffff0f}.chart-chevron{transition:transform .2s}.chart-collapsible.open .chart-chevron{transform:rotate(180deg)}.chart-section-content{display:none;padding:.75rem}.chart-collapsible.open .chart-section-content{display:block}.chart-data-table-wrap{overflow-x:auto;margin-bottom:.5rem;-webkit-overflow-scrolling:touch}.chart-data-table{width:100%;border-collapse:collapse;font-size:.8rem}.chart-data-table th,.chart-data-table td{padding:.25rem;border:1px solid var(--color-white-08)}.chart-data-table thead th{background:#ffffff0a;font-weight:500;color:#fff9;white-space:nowrap}.chart-data-header-wrap{display:flex;align-items:center;gap:2px}.chart-data-header{width:100%;min-width:70px;background:transparent;border:none;color:#fffc;font-size:.75rem;padding:.2rem .3rem;outline:none}.chart-data-header:focus{background:var(--color-white-05)}.chart-data-label-cell{white-space:nowrap}.chart-data-label-wrap{display:flex;align-items:center;gap:2px}.chart-data-label{width:100%;min-width:80px;background:transparent;border:none;color:#fffc;font-size:.8rem;padding:.2rem .3rem;outline:none}.chart-data-label:focus{background:var(--color-white-05)}.chart-data-cell{width:100%;min-width:60px;background:transparent;border:none;color:#fff;font-size:.8rem;font-family:var(--font-mono, monospace);padding:.2rem .3rem;outline:none;text-align:right}.chart-data-cell:focus{background:#7c3aed1a}.chart-data-remove-row,.chart-data-remove-col{flex-shrink:0;width:18px;height:18px;display:flex;align-items:center;justify-content:center;background:transparent;border:none;color:#dc262680;cursor:pointer;font-size:.85rem;border-radius:3px;padding:0;transition:background .12s,color .12s}.chart-data-remove-row:hover,.chart-data-remove-col:hover{background:#dc262626;color:#ef4444}.chart-data-actions{display:flex;gap:.5rem;margin-bottom:.5rem}.chart-data-action-btn{display:flex;align-items:center;gap:4px;padding:.3rem .6rem;font-size:.75rem;font-weight:500;background:#ffffff0f;border:1px solid var(--color-white-10);border-radius:var(--radius-sm, 4px);color:#ffffffb3;cursor:pointer;transition:background .12s,color .12s}.chart-data-action-btn:hover{background:#7c3aed26;color:#fff}.chart-json-toggle{display:block;padding:0;background:none;border:none;color:#7c3aedb3;font-size:.7rem;cursor:pointer;text-decoration:underline;margin-bottom:.5rem}.chart-json-toggle:hover{color:var(--color-accent, #7a4f8c)}.chart-json-editor{width:100%;min-height:150px;max-height:300px;background:#0000004d;border:1px solid var(--color-white-10);border-radius:var(--radius-sm, 4px);color:#e2e8f0;font-family:var(--font-mono, monospace);font-size:.75rem;padding:.5rem;resize:vertical}.chart-form-row{margin-bottom:.625rem}.chart-form-label{display:block;font-size:.75rem;color:#fff9;margin-bottom:.25rem}.chart-form-input{width:100%;padding:.375rem .5rem;background:#ffffff0f;border:1px solid var(--color-white-10);border-radius:var(--radius-sm, 4px);color:#fff;font-size:.8rem;outline:none;transition:border-color .15s}.chart-form-input:focus{border-color:var(--color-accent, #7a4f8c)}.chart-form-input::placeholder{color:#ffffff4d}.chart-form-select{width:100%;padding:.375rem .5rem;background:#ffffff0f;border:1px solid var(--color-white-10);border-radius:var(--radius-sm, 4px);color:#fff;font-size:.8rem;outline:none}.chart-form-select option{background:#1a1a2e;color:#fff}.chart-form-range{width:100%;accent-color:var(--color-accent, #7a4f8c)}.chart-form-check{accent-color:var(--color-accent, #7a4f8c);margin-right:.375rem}.chart-form-hint{font-size:.75rem;color:#ffffff59;font-style:italic}@media(max-width:768px){.chart-modal{max-width:98%;max-height:95vh}.chart-modal-body{flex-direction:column}.chart-modal-controls{flex:none;max-width:100%;max-height:55vh;border-right:none;border-bottom:1px solid rgba(255,255,255,.06)}.chart-modal-preview{min-height:200px;max-height:35vh}.chart-type-grid{grid-template-columns:repeat(4,1fr)}.chart-modal-btn{min-height:44px}.chart-modal-close{width:44px;height:44px}}@media(max-width:600px){.chart-modal-header{padding:.75rem 1rem}.chart-modal-controls,.chart-modal-preview{padding:.75rem}.chart-modal-footer{padding:.75rem 1rem}.chart-type-grid{grid-template-columns:repeat(4,1fr);gap:4px}.chart-type-btn{padding:.4rem .125rem;min-height:44px}.chart-modal-btn{min-height:44px;padding:.5rem 1rem}.chart-modal-close{width:44px;height:44px}.chart-block-controller{flex-wrap:wrap;max-width:200px}.chart-block-controller .mas-table-ctrl-btn{width:38px;height:38px}.chart-block-controller .mas-table-ctrl-sep{display:none}}@media(max-width:480px){.chart-type-grid{grid-template-columns:repeat(4,1fr)}.chart-data-actions{flex-wrap:wrap}.chart-data-action-btn{min-height:44px;flex:1;justify-content:center}.chart-data-cell,.chart-data-label,.chart-data-header,.chart-form-input,.chart-form-select,.chart-json-editor{font-size:16px}}.chart-toast{position:fixed;bottom:80px;left:50%;transform:translate(-50%) translateY(10px);background:#231923e6;color:#fff;padding:10px 20px;border-radius:8px;font-size:13px;font-weight:500;box-shadow:0 4px 16px #0006;z-index:10500;opacity:0;transition:opacity .2s,transform .2s;pointer-events:none}.chart-toast.visible{opacity:1;transform:translate(-50%) translateY(0)}.seo-content-page .chart-block:before{content:"Chart";display:block;padding:5px 12px;font-family:var(--font-mono);font-size:10.5px;font-weight:var(--fw-semibold);letter-spacing:.08em;text-transform:uppercase;color:var(--block-label-fg);background:color-mix(in srgb,var(--accent-teal) 10%,transparent);border-bottom:1px solid var(--block-seam)}.excalidraw-block{position:relative;margin:1.25em 0;background:var(--block-surface);border:1px solid var(--block-border);border-radius:var(--block-radius);box-shadow:var(--block-shadow);overflow:hidden}.excalidraw-header{display:flex;align-items:center;gap:8px;padding:6px 10px;background:transparent;border-bottom:1px solid var(--block-seam);user-select:none;cursor:default}.excalidraw-label{display:inline-flex;align-items:center;gap:6px;font-family:var(--font-mono);font-size:10.5px;font-weight:var(--fw-semibold);letter-spacing:.06em;text-transform:uppercase;color:var(--block-label-fg);user-select:none}.excalidraw-label:before{content:"";display:inline-block;width:10px;height:10px;border-radius:2px;background:color-mix(in srgb,var(--accent-coral) 25%,transparent);border:1px solid color-mix(in srgb,var(--accent-coral) 45%,transparent)}.excalidraw-edit-btn{margin-left:auto;display:flex;align-items:center;justify-content:center;width:24px;height:24px;padding:0;border:none;border-radius:var(--radius-sm);background:transparent;color:var(--block-muted-fg);cursor:pointer;transition:background-color var(--transition-fast),color var(--transition-fast)}.excalidraw-edit-btn:hover{background:var(--color-primary-15);color:var(--color-primary)}.excalidraw-block.read-only .excalidraw-edit-btn,.excalidraw-block.read-only .excalidraw-header{display:none}.excalidraw-preview{padding:14px;min-height:120px;display:flex;align-items:center;justify-content:center;background:color-mix(in srgb,var(--block-fg) 2%,transparent)}.excalidraw-preview svg{max-width:100%;max-height:500px;height:auto}.excalidraw-empty{display:flex;flex-direction:column;align-items:center;gap:.75rem;padding:2rem;color:var(--block-muted-fg);cursor:pointer;transition:color var(--transition-fast)}.excalidraw-empty:hover{color:var(--block-fg)}.excalidraw-empty span{font-size:.85rem;font-weight:500}.excalidraw-pane-iframe{width:100%;height:100%;border:none;background:var(--bg-card)}.excalidraw-pane-footer{display:flex;justify-content:flex-end;gap:.75rem;padding:.5rem .75rem;border-top:1px solid var(--color-white-08);background:#0003;flex-shrink:0}.excalidraw-pane-btn{padding:.4rem 1rem;font-size:.8rem;font-weight:500;border:none;border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition-background),color .15s}.excalidraw-pane-btn-cancel{background:var(--color-white-08);color:#ffffffb3}.excalidraw-pane-btn-cancel:hover{background:var(--color-white-15);color:#fff}.excalidraw-pane-btn-save{background:var(--color-primary);color:#fff}.excalidraw-pane-btn-save:hover{opacity:.85}@media(max-width:600px){.excalidraw-pane-btn{min-height:44px;padding:.5rem 1rem}}.seo-content-page .excalidraw-block:before{content:"Diagram";display:block;padding:5px 12px;font-family:var(--font-mono);font-size:10.5px;font-weight:var(--fw-semibold);letter-spacing:.08em;text-transform:uppercase;color:var(--block-label-fg);background:color-mix(in srgb,var(--accent-coral) 10%,transparent);border-bottom:1px solid var(--block-seam)}.image-block{position:relative;margin:1.25em 0;background:var(--block-surface);border:1px solid var(--block-border);border-radius:var(--block-radius);box-shadow:var(--block-shadow);overflow:hidden}.image-block-header{display:flex;align-items:center;gap:8px;padding:6px 10px;background:transparent;border-bottom:1px solid var(--block-seam);user-select:none}.image-block-label{display:inline-flex;align-items:center;gap:6px;font-family:var(--font-mono);font-size:10.5px;font-weight:var(--fw-semibold);letter-spacing:.06em;text-transform:uppercase;color:var(--block-label-fg)}.image-block-label:before{content:"";display:inline-block;width:10px;height:10px;border-radius:2px;background:color-mix(in srgb,var(--block-fg) 18%,transparent);border:1px solid color-mix(in srgb,var(--block-fg) 28%,transparent)}.image-block-edit-btn{margin-left:auto;width:24px;height:24px;display:flex;align-items:center;justify-content:center;padding:0;border:none;border-radius:var(--radius-sm);background:transparent;color:var(--block-muted-fg);cursor:pointer;transition:background-color var(--transition-fast),color var(--transition-fast)}.image-block-edit-btn:hover{background:var(--color-primary-15);color:var(--color-primary)}.image-block.read-only .image-block-edit-btn,.image-block.read-only .image-block-header{display:none}.image-block-content{padding:0;display:flex;background:color-mix(in srgb,var(--block-fg) 5%,var(--block-bg))}.image-block-content img{display:block;width:100%;height:auto;object-fit:contain;max-height:640px}.image-block-caption{padding:6px 4px 0;font-family:var(--font-body, Lora, Georgia, serif);font-size:.85em;font-style:italic;line-height:1.5;color:var(--block-muted-fg);min-height:1.4em}.image-block-caption:empty:before{content:attr(data-placeholder);color:color-mix(in srgb,var(--block-fg) 35%,transparent)}.image-block-caption:focus{outline:none;color:var(--block-fg)}.image-block.read-only .image-block-caption{padding-top:8px}.image-block.read-only .image-block-caption:empty{display:none}.image-picker-backdrop{position:fixed;inset:0;background:#000000bf;z-index:10400;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .2s}.image-picker-backdrop.visible{opacity:1}.image-picker-modal{width:90%;max-width:700px;max-height:85vh;display:flex;flex-direction:column;overflow:hidden;transform:scale(.95);opacity:0;transition:transform .2s,opacity .2s}.image-picker-modal.visible{transform:scale(1);opacity:1}.image-picker-header{display:flex;justify-content:space-between;align-items:center;padding:1rem 1.25rem;border-bottom:1px solid var(--color-white-08)}.image-picker-title{margin:0;font-size:1.125rem;font-weight:600;color:#fff}.image-picker-close{width:32px;height:32px;background:var(--color-white-08);border:none;border-radius:6px;color:#fff9;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1.25rem;transition:var(--transition-background),color .15s}.image-picker-close:hover{background:#ef44444d;color:#fff}.image-picker-tabs{display:flex;border-bottom:1px solid var(--color-white-08);padding:0 1.25rem}.image-picker-tab{padding:.625rem 1rem;background:none;border:none;border-bottom:2px solid transparent;color:#ffffff80;font-size:.85rem;font-weight:500;cursor:pointer;transition:all .15s}.image-picker-tab:hover{color:#fffc}.image-picker-tab.active{color:var(--color-primary);border-bottom-color:var(--color-primary)}.image-picker-body{flex:1;min-height:0;overflow-y:auto;padding:1rem 1.25rem}.image-picker-pane{display:none}.image-picker-pane.active{display:block}.image-picker-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:8px}.image-picker-card{border-radius:6px;overflow:hidden;cursor:pointer;background:#ffffff0a;border:2px solid transparent;transition:border-color .15s}.image-picker-card:hover{border-color:var(--color-primary-30)}.image-picker-card.selected{border-color:var(--color-primary)}.image-picker-thumb{width:100%;padding-bottom:100%;background-size:cover;background-position:center;background-color:#0003}.image-picker-card-name{display:block;padding:4px 6px;font-size:10px;color:#ffffff80;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.image-picker-loading,.image-picker-empty{padding:2rem;text-align:center;color:#fff6;font-size:13px}.image-picker-load-more{display:flex;justify-content:center;padding:12px 0}.image-picker-load-more-btn{padding:6px 16px;background:#ffffff0f;border:1px solid var(--color-white-10);border-radius:6px;color:#fff9;font-size:13px;cursor:pointer;transition:all .15s}.image-picker-load-more-btn:hover{background:var(--color-white-12);color:#fff}.image-picker-dropzone{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.75rem;padding:3rem 2rem;border:2px dashed rgba(255,255,255,.15);border-radius:8px;color:#fff6;cursor:pointer;transition:all .15s;min-height:200px}.image-picker-dropzone:hover,.image-picker-dropzone.dragover{border-color:var(--color-primary-50);color:#ffffffb3;background:var(--color-primary-05)}.image-picker-dropzone span{font-size:.85rem;font-weight:500}.image-picker-footer{padding:.75rem 1.25rem;border-top:1px solid var(--color-white-08)}.image-picker-alt-input{width:100%;padding:.375rem .5rem;margin-bottom:.75rem;background:#ffffff0f;border:1px solid var(--color-white-10);border-radius:var(--radius-sm);color:#fff;font-size:.8rem;outline:none}.image-picker-alt-input:focus{border-color:var(--color-primary)}.image-picker-alt-input::placeholder{color:#ffffff4d}.image-picker-btn-row{display:flex;justify-content:flex-end;gap:.75rem}.image-picker-btn{padding:.5rem 1.25rem;font-size:.85rem;font-weight:500;border:none;border-radius:var(--radius-sm);cursor:pointer;transition:all .15s}.image-picker-btn-cancel{background:var(--color-white-08);color:#ffffffb3}.image-picker-btn-cancel:hover{background:#ffffff26;color:#fff}.image-picker-btn-insert{background:var(--color-primary);color:#fff}.image-picker-btn-insert:hover{opacity:.85}.image-picker-btn-insert:disabled{opacity:.4;cursor:not-allowed}@media(max-width:600px){.image-picker-modal{max-width:98%;max-height:95vh}.image-picker-grid{grid-template-columns:repeat(auto-fill,minmax(90px,1fr))}.image-picker-btn{min-height:44px}.image-picker-close{width:44px;height:44px}.image-picker-alt-input{font-size:16px}.image-block-controller{flex-wrap:wrap;max-width:220px}}.seo-content-page .image-block:before{content:"Figure";display:block;padding:5px 12px;font-family:var(--font-mono);font-size:10.5px;font-weight:var(--fw-semibold);letter-spacing:.08em;text-transform:uppercase;color:var(--block-label-fg);background:color-mix(in srgb,var(--block-fg) 6%,transparent);border-bottom:1px solid var(--block-seam)}
