.papier{isolation:isolate;background:var(--blanc);color:var(--nuit);position:relative}.papier :is(section,footer)[data-ton=sombre]{background:var(--nuit);color:var(--blanc)}.papier :is(section,footer)[data-ton=bordeaux]{background:var(--bordeaux);color:var(--blanc)}.papier-grain{z-index:5;pointer-events:none;opacity:.5;mix-blend-mode:soft-light;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='320' height='320'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' seed='11' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .5  0 0 0 0 .5  0 0 0 0 .5  0 0 0 1.5 -.35'/%3E%3C/filter%3E%3Crect width='320' height='320' filter='url(%23g)'/%3E%3C/svg%3E") 0 0/320px 320px;position:absolute;inset:0}