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1fr;gap:2.5rem}}.use-cases{gap:1.5rem;display:grid}@media (width>=720px){.use-cases{grid-template-columns:repeat(3,1fr);gap:2rem}}.use-case h3{font-family:var(--font-display);margin:0 0 .55rem;font-size:1.15rem;font-weight:700}.use-case p{color:var(--ph-muted);margin:0;font-size:.98rem}.req-list{gap:.85rem;max-width:40rem;margin:0;padding:0;list-style:none;display:grid}.req-list li{border-bottom:1px solid var(--ph-line);grid-template-columns:auto 1fr;align-items:start;gap:.85rem;padding-block:.55rem;display:grid}.req-list code{font-family:var(--font-mono);color:var(--ph-brass-bright);font-size:.86rem}.security-points{gap:1.35rem;max-width:48rem;display:grid}.security-points h3{font-family:var(--font-display);margin:0 0 .35rem;font-size:1.12rem}.security-points p{color:var(--ph-muted);margin:0}.steps{gap:1.75rem;display:grid}.step h3{font-family:var(--font-display);margin:0 0 .45rem;font-size:1.12rem}.step p{color:var(--ph-muted);margin:0 0 .85rem}.step ol{color:var(--ph-muted);margin:.5rem 0 0;padding-left:1.2rem}pre,.code-block{background:var(--ph-code-bg);border:1px solid var(--ph-line);font-family:var(--font-mono);color:var(--ph-foam);margin:0;padding:1rem 1.1rem;font-size:.84rem;line-height:1.55;overflow-x:auto}[data-theme=light] pre,[data-theme=light] .code-block{color:var(--ph-text)}@media (prefers-color-scheme:light){:root:not([data-theme=dark]):not([data-theme=light]) pre,:root:not([data-theme=dark]):not([data-theme=light]) .code-block{color:var(--ph-text)}}.footnote{color:var(--ph-muted);margin-top:1.5rem;font-size:.95rem}.site-footer{border-top:1px solid var(--ph-line);color:var(--ph-muted);padding:2.5rem clamp(1.25rem,4vw,3rem) 3rem;font-size:.92rem}.site-footer .section-inner{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;display:flex}.draft-banner{font-family:var(--font-display);letter-spacing:.08em;text-transform:uppercase;color:var(--ph-brass);align-items:center;gap:.45rem;font-size:.72rem;font-weight:700;display:inline-flex}.reveal{opacity:0;transition:opacity .7s,transform .7s;transform:translateY(1.1rem)}.reveal.is-visible{opacity:1;transform:none}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.porthole-glass-sweep,.porthole-horizon,.porthole-ripple,.reveal{opacity:1;transform:none;transition:none!important;animation:none!important}.btn:hover{transform:none}}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-leading{syntax:"*";inherits:false}@property --tw-font-weight{syntax:"*";inherits:false}@property --tw-tracking{syntax:"*";inherits:false}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property 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