.surface{border:1px solid rgba(255,255,255,.1);background:linear-gradient(180deg,var(--surface),var(--surface2));border-radius:22px;box-shadow:var(--shadow2);overflow:hidden;position:relative}
.surface::before{content:"";position:absolute;inset:-2px;background:linear-gradient(135deg,rgba(76,242,232,.16),rgba(135,89,255,.14),rgba(255,61,129,.08));filter:blur(18px);opacity:.6;pointer-events:none}
.surface>*{position:relative}
.surface.pad{padding:18px}