.proof-page{color:#FFFAF1;background:#132C20;font:1.125rem/1.65 'Source Sans 3',sans-serif}
.proof-page .w{width:auto;max-width:1100px;margin-inline:auto;padding-inline:clamp(1.25rem,4vw,3rem)}
.proof-page section{padding-block:clamp(2.5rem,5vw,4rem);border-top:1px solid #273F33}
.proof-page .hero{padding-block:clamp(2.5rem,6vw,5rem);background:#1C3C2B}
.proof-page h1,.proof-page h2,.proof-page h3{font-family:'Source Serif 4',serif;color:#FFFAF1;line-height:1.2;overflow-wrap:break-word}
.proof-page h1{font-size:clamp(2.25rem,5vw,4rem);max-width:22ch}
.proof-page h2{font-size:clamp(1.75rem,3vw,2.65rem);max-width:32ch}
.proof-page h3{font-size:clamp(1.35rem,2.5vw,1.85rem)}
.proof-page p,.proof-page li,.proof-page dd{max-width:70ch;overflow-wrap:anywhere}
.proof-page .tag{color:#C8A45D;font-size:.875rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase}
.proof-page .proof-boundary{color:#D9E0D9;font-size:1rem;line-height:1.6;max-width:75ch}
.proof-page a{color:#FFFAF1;text-underline-offset:.25em}
.proof-page a:hover{color:#C8A45D}
.proof-page .button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:.75rem 1rem;background:#C8A45D;color:#132C20;font-weight:700;border:1px solid #C8A45D;text-decoration:none;white-space:normal;max-width:100%;box-sizing:border-box}
.proof-page :focus-visible{outline:3px solid #C8A45D;outline-offset:4px}
.proof-jumps{display:flex;flex-wrap:wrap;align-items:center;gap:.75rem 1.5rem;margin-block:1.5rem}
.proof-jumps a{display:inline-flex;align-items:center;min-height:44px}
.proof-split{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:2rem;align-items:start}
.proof-figure{margin:0;max-width:30rem}.proof-figure img{display:block;width:100%;height:auto}
.proof-figure figcaption,.proof-slide figcaption{font-size:1rem;color:#D9E0D9;line-height:1.5;margin-top:.75rem}
.proof-slide,.proof-example{margin:1.5rem 0;padding:clamp(1rem,3vw,2rem);background:#273F33;border:1px solid #C8A45D}
.proof-slide{max-width:54rem;min-height:15rem;display:flex;flex-direction:column;justify-content:center}
.proof-slide h3{font-size:clamp(1.65rem,3.5vw,3rem);margin-block:.5rem 1rem}
.proof-notes{max-width:54rem;margin-block:1rem;border-bottom:1px solid #D9E0D9;padding-block:.5rem}
.proof-notes summary{min-height:44px;padding-block:.5rem;cursor:pointer;font-weight:600}
.proof-record{margin:1.5rem 0}.proof-record>div{display:grid;grid-template-columns:minmax(10rem,.65fr) minmax(0,2fr);gap:1.5rem;padding-block:1.25rem;border-top:1px solid #D9E0D9}
.proof-record dt{font-weight:700;color:#C8A45D}.proof-record dd{margin:0}
@media(max-width:760px){.proof-split,.proof-record>div{grid-template-columns:minmax(0,1fr)}.proof-record>div{gap:.5rem}.proof-slide{min-height:0}.proof-page .button{width:100%}}
@media print{.proof-page,.proof-page .hero,.proof-page section,.proof-slide,.proof-example{background:Canvas!important;color:CanvasText!important}.proof-page :is(h1,h2,h3,p,li,dd,dt,figcaption,.tag,a){color:CanvasText!important}.proof-page .w{padding-inline:0}.proof-page section{padding-block:1rem}.proof-jumps,.proof-page .cta{display:none}.proof-slide,.proof-record>div{break-inside:avoid}}