/*
 * ============================================================
 * 04 — BACKGROUND
 * Dark neon background su floating violet glow efektu.
 * Naudojamas .spinsgems-background klasėje.
 * ============================================================
 */

.spinsgems-background {
    position: relative;
    background-color: #000;
    min-height: 100vh;
    overflow: hidden;
}

/* Violetiniai plaukiojantys glow sluoksniai */
.spinsgems-background::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 120%;
    height: 120%;
    background:
        radial-gradient(circle at 25% 25%, rgba(155, 81, 224, 0.18) 0%, transparent 50%),
        radial-gradient(circle at 70% 60%, rgba(185, 100, 255, 0.15) 0%, transparent 55%),
        radial-gradient(circle at 50% 10%, rgba(180, 120, 255, 0.10) 0%, transparent 60%);
    z-index: 0;
    pointer-events: none;
    filter: blur(60px);
    opacity: 0.8;
    animation: sgFloatGlow 60s ease-in-out infinite alternate;
}

/* Turinys visada virš fono */
.spinsgems-background > * {
    position: relative;
    z-index: 1;
    color: #fff;
}

@keyframes sgFloatGlow {
    0%   { transform: translate(-5%, -5%) scale(1);    }
    25%  { transform: translate(2%, -3%)  scale(1.05); }
    50%  { transform: translate(5%, 2%)   scale(1.08); }
    75%  { transform: translate(0%, 3%)   scale(1.02); }
    100% { transform: translate(-5%, -5%) scale(1);    }
}