/* Approved A trial: a little cream in base violet, berry-violet PRISM with broad laser bands.
   Classic rainbow styles remain in game.css; no overrides target that tier. */
.card-unit.tier-normal .card-bg{background:radial-gradient(ellipse at 70% 25%,#f1d9b93b,transparent 58%),linear-gradient(150deg,#8765a7,#543e61 60%,#332542)}
.prism-band{display:none;pointer-events:none;position:absolute;inset:0}
.card-unit.tier-gold .card-bg{background:radial-gradient(ellipse at 25% 20%,#ed7dc257,transparent 56%),linear-gradient(145deg,#924bb5,#743592 53%,#321b50)}
.tier-gold .front{background:linear-gradient(125deg,#edd8ff,#b68bd6 23%,#f6ddff 48%,#a780c8 73%,#efd1fb);border-color:#edcfff;box-shadow:0 20px 42px -18px #000b,0 0 24px #cf78c634}
.tier-gold .aurora{background:radial-gradient(ellipse at 20% 35%,#f391cc70,transparent 55%),radial-gradient(ellipse at 85% 70%,#9b74f55c,transparent 55%);opacity:calc(var(--aurora-strength,.9)*.8)}
.tier-gold .foil{background:linear-gradient(125deg,transparent 8%,#fc9cda44 28%,#d5bcff3d 43%,transparent 60%);opacity:calc(var(--foil-strength,.7)*.6);mix-blend-mode:screen;filter:saturate(1.1)}
.tier-gold .diffraction{opacity:.26}
.tier-gold .prism-band{display:block;background:repeating-linear-gradient(125deg,transparent 0%,transparent 13%,#9feee94d 16%,#b9c1ff70 20%,#edb5ff66 24%,#ffb7d94d 28%,#fff0b733 31%,transparent 35%,transparent 53%);background-size:180% 160%;background-position:var(--mx,35%) var(--my,40%);mix-blend-mode:screen;opacity:calc(var(--foil-strength,.7)*.82);mask-image:linear-gradient(#000,#000 65%,transparent 90%)}
.tier-gold .finish-badge{color:#f5d4f5;border-color:#e7afe7;background:#d87fcb20}
.foil-off .card-inner .foil,.foil-off .card-inner .aurora,.foil-off .card-inner .diffraction{opacity:0}
.foil-off .prism-band{display:none}