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1600px);max-height:92vh}.lightbox__image{display:block;width:100%;height:auto;max-height:calc(92vh - 3.25rem);object-fit:contain;background:#fff;border-radius:10px;box-shadow:0 18px 40px rgba(11,18,32,0.12)}.lightbox__caption{margin:0;color:#fff;font-size:0.95rem}.lightbox__close{position:absolute;top:1rem;right:1rem;z-index:2;font-family:"Outfit","Segoe UI",sans-serif;font-weight:600;font-size:0.92rem;line-height:1;border:1px solid rgba(255,255,255,0.28);border-radius:8px;padding:0.5rem 0.8rem;background:#0b1220;color:#fff;cursor:pointer}.lightbox__close:hover{background:#1e293b}body.lightbox-open{overflow:hidden}.layout{min-height:100vh}.shell{display:flex;align-items:stretch;min-height:calc(100vh - 64px)}.main-wrap{flex:1;min-width:0;display:flex;flex-direction:column;background:#fff}.main{flex:1}.layout:not(.layout--home) .main{padding:2rem 1.25rem 3rem}.doc{max-width:800px;margin:0 auto}.doc__header{margin-bottom:1.6rem;padding-bottom:1.1rem;border-bottom:1px solid #d9e2ec}.home-sections{max-width:1120px;margin:0 auto;padding:0 1.25rem 3.5rem}.home-sections h2:first-child{margin-top:0}@media (min-width: 1024px){.layout:not(.layout--home) .main{padding:2.4rem 2.5rem 4rem}.home-sections{padding:0 2rem 4rem}}.site-header{position:sticky;top:0;z-index:40;height:64px;background:#0b1220;color:#fff;border-bottom:1px solid rgba(255,255,255,0.06)}.site-header__inner{height:100%;display:flex;align-items:center;gap:1.5rem;padding:0 1.1rem;max-width:1400px;margin:0 auto}.brand{display:flex;align-items:center;gap:0.7rem;color:#fff;text-decoration:none;min-width:0}.brand:hover{color:#fff}.brand__mark{width:28px;height:28px;border-radius:7px;background:linear-gradient(135deg, #0078d4 0%, #4cc2ff 100%);box-shadow:0 0 0 3px rgba(0,120,212,0.25);flex-shrink:0}.brand__text{display:flex;align-items:baseline;gap:0.45rem;min-width:0}.brand__name{font-family:"Outfit","Segoe 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.site-header__actions{margin-left:0}}.sidebar{display:none;width:260px;flex-shrink:0;background:#f4f7fb;border-right:1px solid #d9e2ec;padding:1.4rem 0.9rem 2rem}.sidebar__label{font-family:"Outfit","Segoe UI",sans-serif;font-size:0.72rem;letter-spacing:0.12em;text-transform:uppercase;color:#5b677a;margin:1.1rem 0.7rem 0.45rem}.sidebar__label:first-child{margin-top:0}.sidebar__nav ul{list-style:none;margin:0 0 0.5rem;padding:0}.sidebar__nav a{display:block;padding:0.42rem 0.7rem;border-radius:8px;color:#1e293b;text-decoration:none;font-size:0.97rem}.sidebar__nav a:hover{background:rgba(0,120,212,0.08);color:#005a9e}.sidebar__nav a[aria-current="page"]{background:#fff;color:#005a9e;font-weight:600;box-shadow:0 1px 2px rgba(11,18,32,0.06);border:1px solid #d9e2ec;border-left:3px solid #0078d4}.sidebar-backdrop{display:none}.nav-open{overflow:hidden}.nav-open .sidebar{display:block;position:fixed;top:64px;left:0;bottom:0;z-index:50;overflow-y:auto;box-shadow:0 18px 40px 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1024px){.hero{grid-template-columns:1.05fr 1fr;align-items:center;padding:2.8rem 2rem 1.8rem;gap:2.4rem}.fact-strip{grid-template-columns:repeat(4, 1fr);width:calc(100% - 4rem)}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:0.4rem;font-family:"Outfit","Segoe UI",sans-serif;font-weight:600;font-size:0.95rem;line-height:1;border-radius:8px;border:1px solid transparent;padding:0.7rem 1.05rem;text-decoration:none;cursor:pointer;background:#fff;color:#0b1220}.btn:hover{text-decoration:none}.btn__icon{flex-shrink:0;display:block}.btn--primary{background:#0078d4;border-color:#0078d4;color:#fff}.btn--primary:hover{background:#106ebe;border-color:#106ebe;color:#fff}.btn--secondary{background:#0b1220;border-color:#0b1220;color:#fff}.btn--secondary:hover{background:#1e293b;color:#fff}.btn--ghost{background:transparent;border-color:#d9e2ec;color:#0b1220}.btn--ghost:hover{border-color:#0b1220;color:#0b1220}.btn--danger{background:#c02a2a;border-color:#c02a2a;color:#fff}.btn--lg{padding:0.9rem 1.25rem;font-size:1.02rem}.btn--tiny{padding:0.22rem 0.5rem;font-size:0.75rem;font-weight:500;background:#fff;border-color:#d9e2ec;color:#1e293b}.btn--tiny:hover,.btn--tiny.is-copied{border-color:#0078d4;color:#005a9e}.btn-row{display:flex;flex-wrap:wrap;gap:0.6rem;margin:0 0 1.25rem}.callout{border-radius:10px;padding:0.9rem 1rem 0.35rem;margin:0 0 1.25rem;border:1px solid #d9e2ec;border-left-width:4px}.callout__title{font-family:"Outfit","Segoe UI",sans-serif;font-weight:600;margin:0 0 0.35rem}.callout--info{background:#e8f3fc;border-left-color:#0078d4}.callout--success{background:#e8f6ee;border-left-color:#0e7c3a}.callout--warning{background:#fff6dd;border-left-color:#9a6700}.callout--danger{background:#fdecec;border-left-color:#c02a2a}.callout--note{background:#f3eefc;border-left-color:#5b21b6}.panel{border:1px solid #d9e2ec;border-radius:10px;background:#fff;margin:0 0 1.25rem;box-shadow:0 1px 2px rgba(11,18,32,0.06)}.panel__header{display:flex;justify-content:space-between;gap:1rem;align-items:baseline;padding:0.8rem 1rem;border-bottom:1px solid #d9e2ec;background:#f4f7fb;border-radius:10px 10px 0 0}.panel__title{margin:0;font-size:1rem}.panel__meta{color:#5b677a;font-size:0.85rem}.panel__body{padding:0.9rem 1rem 0.3rem}.panel-grid{display:grid;gap:1rem;margin:0 0 1.25rem}@media (min-width: 720px){.panel-grid{grid-template-columns:1fr 1fr}}.tabs{margin:0 0 1.4rem}.tabs__list{display:flex;gap:0.25rem;border-bottom:1px solid #d9e2ec}.tabs__tab{font-family:"Outfit","Segoe UI",sans-serif;font-weight:600;font-size:0.92rem;background:none;border:0;border-bottom:2px solid transparent;padding:0.7rem 0.9rem;color:#5b677a;cursor:pointer;margin-bottom:-1px;white-space:nowrap}.tabs__tab:hover{color:#0b1220}.tabs__tab[aria-selected="true"]{color:#005a9e;border-bottom-color:#0078d4}.tabs__panel{padding:1rem 0 0}.badge{display:inline-block;font-family:"Outfit","Segoe UI",sans-serif;font-size:0.72rem;font-weight:650;letter-spacing:0.04em;text-transform:uppercase;padding:0.18rem 0.45rem;border-radius:999px;background:#f4f7fb;color:#1e293b}.badge--proposed{background:#e8f3fc;color:#005a9e}.badge--accepted{background:#e8f6ee;color:#0e7c3a}.badge--deprecated,.badge--superseded{background:#fdecec;color:#c02a2a}.badge--tier{background:#eef2ff;color:#3730a3}.adr-log td:first-child{white-space:nowrap;font-variant-numeric:tabular-nums;color:#5b677a}.jump-cards{list-style:none;display:grid;gap:0.85rem;padding:0;margin:0 0 1.5rem}.jump-cards a{display:block;border:1px solid #d9e2ec;border-radius:10px;padding:0.95rem 1rem;text-decoration:none;color:#1a2332;background:#fff;height:100%}.jump-cards a:hover{border-color:#0078d4;box-shadow:0 1px 2px rgba(11,18,32,0.06)}.jump-cards strong{display:block;font-family:"Outfit","Segoe UI",sans-serif;color:#0b1220;margin-bottom:0.2rem}.jump-cards span{color:#5b677a;font-size:0.95rem}@media (min-width: 720px){.jump-cards{grid-template-columns:1fr 1fr}}.font-sample{border:1px solid #d9e2ec;border-radius:10px;padding:1rem;margin:0 0 1rem}.font-sample--display{font-family:"Outfit","Segoe UI",sans-serif;font-size:1.6rem;font-weight:600}.font-sample--body{font-family:"Source Sans 3","Segoe UI",sans-serif}.font-sample--mono{font-family:"IBM Plex Mono","Cascadia 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10px}.pipeline__stage:last-child{border-radius:0 10px 10px 0}.pipeline__stage:not(:last-child)::after{content:"";position:absolute;top:50%;right:-7px;width:14px;height:14px;border-top:2px solid #0078d4;border-right:2px solid #0078d4;transform:translateY(-50%) rotate(45deg);background:transparent;z-index:1}.pipeline__index{position:static;margin:0 auto 0.45rem}}.highlight{background:#0b1220;border-radius:10px;margin:0 0 1.25rem}.highlight pre{margin:0}.highlight .c,.highlight .c1{color:#94a3b8}.highlight .k,.highlight .kd{color:#7dd3fc}.highlight .s,.highlight .s1,.highlight .s2{color:#86efac}.highlight .n,.highlight .na,.highlight .nx{color:#e2e8f0}.highlight .mi,.highlight .mf{color:#fdba74}.highlight .p{color:#cbd5e1}