.brand-page--case-immersive{--spx-os-bg: #050505;--spx-os-bg-elevated: #0c0c0c;--spx-os-bg-subtle: #141414;--spx-os-border: rgba(255, 255, 255, .1);--spx-os-border-strong: rgba(255, 255, 255, .16);--spx-os-text: #f5f5f5;--spx-os-text-muted: rgba(255, 255, 255, .58);--spx-os-text-soft: rgba(255, 255, 255, .42);--spx-os-accent: #22c55e;--spx-os-accent-dim: rgba(34, 197, 94, .14);background:var(--spx-os-bg);color:var(--spx-os-text)}.brand-page--case-immersive.brand-page--tc-issum{--spx-os-accent: #60a5fa;--spx-os-accent-dim: rgba(96, 165, 250, .14)}.brand-page--case-immersive .header{--header-bg: rgba(5, 5, 5, .72)}.brand-page--case-immersive .footer{border-top-color:var(--spx-os-border);background:var(--spx-os-bg);color:var(--spx-os-text-muted)}.brand-page--case-immersive .footer a{color:var(--spx-os-text-muted)}.brand-page--case-immersive .footer a:hover{color:var(--spx-os-text)}.spx-os-main{overflow-x:clip}.spx-os-kicker{font-family:var(--font-mono, ui-monospace, monospace);font-size:.65rem;letter-spacing:.14em;text-transform:uppercase;color:var(--spx-os-text-soft);margin:0 0 1rem}.spx-os-section-title{font-size:clamp(1.75rem,4vw,2.5rem);font-weight:800;letter-spacing:-.04em;line-height:1.08;margin:0 0 1rem;color:var(--spx-os-text)}.spx-os-section-lead{max-width:42rem;margin:0;font-size:1.0625rem;line-height:1.65;color:var(--spx-os-text-muted)}.spx-os-hero{padding-top:clamp(6rem,14vh,9rem);padding-bottom:0;background:var(--spx-os-bg)}.spx-os-breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem .65rem;margin-bottom:2rem;font-size:.8125rem;color:var(--spx-os-text-soft)}.spx-os-breadcrumb a{color:var(--spx-os-text-muted);text-decoration:none;transition:color .2s ease-out}.spx-os-breadcrumb a:hover{color:var(--spx-os-text)}.spx-os-hero__title{font-size:clamp(3rem,12vw,7rem);font-weight:800;letter-spacing:-.06em;line-height:.92;margin:0 0 1.25rem;color:var(--spx-os-text)}.spx-os-hero__thesis{max-width:28rem;margin:0;font-size:clamp(1.0625rem,2vw,1.25rem);line-height:1.55;color:var(--spx-os-text-muted)}.spx-os-hero__visual{margin-top:clamp(2.5rem,6vw,4rem);padding-inline:clamp(.75rem,3vw,2rem);transform-origin:center top;transition:transform .1s linear;will-change:transform}.spx-os-hero__visual img{display:block;width:100%;max-width:1400px;margin-inline:auto;height:auto;border-radius:12px;border:1px solid var(--spx-os-border-strong);box-shadow:0 40px 80px #0000008c;object-fit:cover;object-position:top center}@media(prefers-reduced-motion:reduce){.spx-os-hero__visual{transition:none;will-change:auto}}.spx-os-problem{padding:clamp(4rem,10vw,7rem) 0;background:var(--spx-os-bg-elevated);border-top:1px solid var(--spx-os-border)}.spx-os-problem__grid{display:grid;gap:3rem;align-items:start}@media(min-width:900px){.spx-os-problem__grid{grid-template-columns:1.1fr .9fr;gap:4rem}}.spx-os-problem__copy p{margin:0 0 1rem;font-size:1.0625rem;line-height:1.65;color:var(--spx-os-text-muted)}.spx-os-problem__copy p:last-child{margin-bottom:0}.spx-os-tool-list{list-style:none;margin:0;padding:0;border:1px solid var(--spx-os-border);border-radius:16px;overflow:hidden}.spx-os-tool-list li{display:grid;grid-template-columns:1fr auto;gap:1rem;align-items:baseline;padding:1.125rem 1.5rem;border-bottom:1px solid var(--spx-os-border)}.spx-os-tool-list li:last-child{border-bottom:none}.spx-os-tool-list__name{font-weight:700;letter-spacing:-.02em;color:var(--spx-os-text)}.spx-os-tool-list__role{font-family:var(--font-mono, ui-monospace, monospace);font-size:.65rem;letter-spacing:.08em;text-transform:uppercase;color:var(--spx-os-text-soft);text-align:right}.spx-os-arch{padding:clamp(4rem,10vw,7rem) 0;background:var(--spx-os-bg)}.spx-os-arch .spx-os-section-lead{margin-bottom:3rem}.spx-os-flow{display:grid;gap:1.5rem;margin-bottom:3rem}@media(min-width:900px){.spx-os-flow{grid-template-columns:1fr auto 1.2fr auto 1fr;align-items:stretch;gap:0}}.spx-os-flow__lane{padding:1.5rem;border:1px solid var(--spx-os-border);border-radius:16px;background:var(--spx-os-bg-elevated)}@media(min-width:900px){.spx-os-flow__lane{border-radius:0;border-right:none}.spx-os-flow__lane:first-child{border-radius:16px 0 0 16px}.spx-os-flow__lane:last-child{border-radius:0 16px 16px 0;border-right:1px solid var(--spx-os-border)}.spx-os-flow__lane--core{border-left:none;border-right:none;display:flex;flex-direction:column;justify-content:center;text-align:center;background:var(--spx-os-bg-subtle)}}.spx-os-flow__label{font-family:var(--font-mono, ui-monospace, monospace);font-size:.6rem;letter-spacing:.12em;text-transform:uppercase;color:var(--spx-os-text-soft);margin:0 0 1rem}.spx-os-flow__nodes{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:.5rem}.spx-os-flow__nodes li{padding:.4rem .75rem;border:1px solid var(--spx-os-border);border-radius:999px;font-size:.8125rem;color:var(--spx-os-text-muted)}.spx-os-flow__core{margin:0;font-size:1.25rem;font-weight:800;letter-spacing:-.03em;line-height:1.2;color:var(--spx-os-text)}.spx-os-flow__core span{display:block;margin-top:.35rem;font-family:var(--font-mono, ui-monospace, monospace);font-size:.65rem;letter-spacing:.1em;text-transform:uppercase;color:var(--spx-os-accent);font-weight:400}.spx-os-flow__connector{display:none}@media(min-width:900px){.spx-os-flow__connector{display:block;width:2rem;background:linear-gradient(90deg,var(--spx-os-border) 50%,transparent 50%);background-size:8px 1px;background-repeat:repeat-x;background-position:center;align-self:center;min-height:1px}}.spx-os-table-wrap{border:1px solid var(--spx-os-border);border-radius:16px;overflow:hidden}.spx-os-table{width:100%;border-collapse:collapse;font-size:.9375rem}.spx-os-table__caption{padding:1rem 1.25rem;text-align:left;font-family:var(--font-mono, ui-monospace, monospace);font-size:.6rem;letter-spacing:.1em;text-transform:uppercase;color:var(--spx-os-text-soft);border-bottom:1px solid var(--spx-os-border)}.spx-os-table th,.spx-os-table td{padding:.875rem 1.25rem;text-align:left;border-bottom:1px solid var(--spx-os-border)}.spx-os-table th{font-family:var(--font-mono, ui-monospace, monospace);font-size:.6rem;letter-spacing:.1em;text-transform:uppercase;color:var(--spx-os-text-soft);background:var(--spx-os-bg-elevated)}.spx-os-table tbody tr:last-child td{border-bottom:none}.spx-os-table td{color:var(--spx-os-text-muted)}.spx-os-table td:first-child{color:var(--spx-os-text);font-weight:600}.spx-os-tag{display:inline-block;padding:.2rem .55rem;border-radius:999px;font-family:var(--font-mono, ui-monospace, monospace);font-size:.55rem;letter-spacing:.08em;text-transform:uppercase}.spx-os-tag--auto{background:var(--spx-os-accent-dim);color:var(--spx-os-accent)}.spx-os-tag--manual{background:#ffffff0f;color:var(--spx-os-text-soft)}.spx-os-modules{padding:clamp(4rem,10vw,6rem) 0 0;background:var(--spx-os-bg-elevated);border-top:1px solid var(--spx-os-border)}.spx-os-modules__header{margin-bottom:2rem}.spx-os-chapters{display:flex;gap:.5rem;padding:0 clamp(1rem,4vw,2rem) 1.5rem;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch}.spx-os-chapters::-webkit-scrollbar{display:none}@media(min-width:1024px){.spx-os-chapters{display:none}}.spx-os-chapters__link{flex-shrink:0;padding:.55rem 1rem;border:1px solid var(--spx-os-border);border-radius:999px;font-size:.8125rem;font-weight:600;color:var(--spx-os-text-muted);text-decoration:none;transition:border-color .2s ease-out,color .2s ease-out,background .2s ease-out}.spx-os-chapters__link:hover{color:var(--spx-os-text);border-color:var(--spx-os-border-strong)}.spx-os-chapters__link.is-active,.spx-os-chapters__link[aria-current=true]{color:var(--spx-os-text);border-color:var(--spx-os-accent);background:var(--spx-os-accent-dim)}.spx-os-chapters__link:focus-visible{outline:2px solid var(--spx-os-accent);outline-offset:2px}.spx-os-modules__body{display:grid;gap:0}@media(min-width:1024px){.spx-os-modules__body{grid-template-columns:220px minmax(0,1fr);gap:3rem;padding-inline:clamp(1rem,4vw,2rem);max-width:1400px;margin-inline:auto}}.spx-os-rail{display:none}@media(min-width:1024px){.spx-os-rail{display:block;position:sticky;top:7rem;align-self:start;padding-bottom:4rem}}.spx-os-rail__list{list-style:none;margin:0;padding:0}.spx-os-rail__link{display:flex;align-items:baseline;gap:.75rem;padding:.75rem 0;color:var(--spx-os-text-muted);text-decoration:none;font-weight:600;font-size:.9375rem;border-bottom:1px solid transparent;transition:color .2s ease-out}.spx-os-rail__link:hover{color:var(--spx-os-text)}.spx-os-rail__link.is-active,.spx-os-rail__link[aria-current=true]{color:var(--spx-os-accent)}.spx-os-rail__num{font-family:var(--font-mono, ui-monospace, monospace);font-size:.6rem;letter-spacing:.1em;color:var(--spx-os-text-soft)}.spx-os-rail__link.is-active .spx-os-rail__num,.spx-os-rail__link[aria-current=true] .spx-os-rail__num{color:var(--spx-os-accent)}.spx-os-rail__link:focus-visible{outline:2px solid var(--spx-os-accent);outline-offset:4px}.spx-os-chapters-content{min-width:0}.spx-os-chapter{padding:clamp(3rem,8vw,5rem) clamp(1rem,4vw,2rem);border-top:1px solid var(--spx-os-border)}@media(min-width:1024px){.spx-os-chapter{padding-inline:0}.spx-os-chapter:first-child{border-top:none;padding-top:0}}.spx-os-chapter__header{max-width:40rem;margin-bottom:2.5rem}.spx-os-chapter__title{font-size:clamp(1.5rem,3vw,2rem);font-weight:800;letter-spacing:-.04em;line-height:1.1;margin:0 0 1rem;color:var(--spx-os-text)}.spx-os-chapter__desc{margin:0;font-size:1rem;line-height:1.65;color:var(--spx-os-text-muted)}.spx-os-shot{margin:0 0 2rem;border:1px solid var(--spx-os-border-strong);border-radius:12px;overflow:hidden;background:var(--spx-os-bg)}.spx-os-shot:last-child{margin-bottom:0}.spx-os-shot img{display:block;width:100%;height:auto;object-fit:cover;object-position:top center}.spx-os-shot figcaption{padding:.875rem 1.25rem;font-family:var(--font-mono, ui-monospace, monospace);font-size:.6rem;letter-spacing:.08em;text-transform:uppercase;color:var(--spx-os-text-soft);border-top:1px solid var(--spx-os-border)}.spx-os-shot--photo img{aspect-ratio:21 / 9;object-fit:cover}.spx-os-proof{padding:clamp(4rem,10vw,7rem) 0;background:var(--spx-os-bg);border-top:1px solid var(--spx-os-border)}.spx-os-proof .spx-os-section-lead{margin-bottom:2.5rem}.spx-os-spec{margin:0;border:1px solid var(--spx-os-border);border-radius:16px;overflow:hidden}.spx-os-spec__row{display:grid;gap:.35rem;padding:1.125rem 1.5rem;border-bottom:1px solid var(--spx-os-border)}@media(min-width:768px){.spx-os-spec__row{grid-template-columns:200px 1fr;gap:2rem;align-items:baseline}}.spx-os-spec__row:last-child{border-bottom:none}.spx-os-spec dt{font-family:var(--font-mono, ui-monospace, monospace);font-size:.65rem;letter-spacing:.1em;text-transform:uppercase;color:var(--spx-os-text-soft)}.spx-os-spec dd{margin:0;font-size:1rem;line-height:1.5;color:var(--spx-os-text-muted)}.spx-os-spec dd a{color:var(--spx-os-accent);text-decoration:underline;text-underline-offset:3px}.spx-os-spec dd a:hover{color:var(--spx-os-text)}.back-footer-note a{color:var(--spx-os-text-muted);text-decoration:underline;text-underline-offset:3px}.spx-os-cta{padding:clamp(3rem,8vw,5rem) 0 clamp(5rem,12vw,8rem);background:var(--spx-os-bg-elevated);border-top:1px solid var(--spx-os-border)}.spx-os-cta__inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:2rem;padding:clamp(2rem,5vw,3rem);border:1px solid var(--spx-os-border-strong);border-radius:20px;background:var(--spx-os-bg-subtle)}.spx-os-cta__title{margin:0 0 .5rem;font-size:clamp(1.25rem,3vw,1.75rem);font-weight:800;letter-spacing:-.03em;color:var(--spx-os-text)}.spx-os-cta__subtitle{margin:0;max-width:36rem;font-size:1rem;line-height:1.6;color:var(--spx-os-text-muted)}.spx-os-cta__actions{display:flex;flex-wrap:wrap;gap:.75rem}.brand-page--case-immersive .spx-os-btn-outline{border-color:var(--spx-os-border-strong);color:var(--spx-os-text-muted)}.brand-page--case-immersive .spx-os-btn-outline:hover{border-color:var(--spx-os-text-muted);color:var(--spx-os-text);background:transparent}