.brand-motion-host {
    position: relative;
    overflow: hidden;
    --itr-accent: var(--primary-color);
    --itr-accent-2: var(--accent);
    --itr-glow: var(--primary-soft);
    --itr-motion-opacity: 0.82;
    --itr-motion-opacity-hover: 0.92;
    --itr-motion-speed-1: 14s;
    --itr-motion-speed-2: 19s;
    --itr-motion-speed-3: 24s;
    --itr-brand-mouse-x: 0px;
    --itr-brand-mouse-y: 0px;
}

.brand-motion-surface {
    position: relative;
    z-index: 1;
}

.itr-brand-motion {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.itr-brand-motion::after {
    content: "";
    position: absolute;
    inset: -15%;
    background: linear-gradient(120deg, rgba(94, 234, 212, 0.18), rgba(245, 158, 11, 0.12), transparent 70%);
    opacity: 0.72;
    animation: itr-glow-sweep 20s ease-in-out infinite;
    mix-blend-mode: screen;
}

.itr-sheen {
    position: absolute;
    inset: -35%;
    border-radius: 40%;
    background:
        linear-gradient(140deg, rgba(56, 189, 248, 0.18), transparent 55%),
        linear-gradient(240deg, rgba(94, 234, 212, 0.16), transparent 60%);
    opacity: 0.62;
    animation: itr-sheen-drift 24s ease-in-out infinite;
    mix-blend-mode: screen;
    transform: translate3d(calc(var(--itr-brand-mouse-x) * 0.08), calc(var(--itr-brand-mouse-y) * 0.08), 0);
}

.itr-aurora {
    position: absolute;
    width: 55vmax;
    height: 55vmax;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, var(--primary-glow), transparent 62%),
                radial-gradient(circle at 70% 70%, var(--accent-glow), transparent 65%);
    filter: blur(34px);
    opacity: var(--itr-motion-opacity);
    transform: translate3d(calc(var(--itr-brand-mouse-x) * 0.1), calc(var(--itr-brand-mouse-y) * 0.1), 0);
    animation: itr-aurora-drift var(--itr-motion-speed-1) ease-in-out infinite;
}

.itr-aurora--one {
    top: -25%;
    left: -15%;
    animation-duration: var(--itr-motion-speed-1);
}

.itr-aurora--two {
    bottom: -30%;
    right: -20%;
    animation-duration: var(--itr-motion-speed-2);
}

.itr-aurora--three {
    top: 10%;
    right: 10%;
    width: 40vmax;
    height: 40vmax;
    animation-duration: var(--itr-motion-speed-3);
    background: radial-gradient(circle at 30% 30%, var(--accent-glow), transparent 62%),
                radial-gradient(circle at 70% 70%, var(--primary-glow), transparent 62%);
}

.itr-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(148, 163, 184, 0.16) 1px, transparent 1px),
        linear-gradient(90deg, rgba(148, 163, 184, 0.16) 1px, transparent 1px);
    background-size: 90px 90px;
    opacity: 0.24;
    animation: itr-grid-float 30s linear infinite;
    transform: translate3d(calc(var(--itr-brand-mouse-x) * -0.04), calc(var(--itr-brand-mouse-y) * -0.04), 0);
}

.itr-particles {
    position: absolute;
    inset: 0;
}

.itr-particle {
    position: absolute;
    left: var(--x);
    top: var(--y);
    width: var(--size);
    height: var(--size);
    border-radius: 999px;
    background: rgba(226, 232, 240, 0.7);
    box-shadow: 0 0 12px rgba(94, 234, 212, 0.35);
    opacity: 0.68;
    animation: itr-particle-float 13s ease-in-out infinite;
    animation-delay: var(--delay);
}

.itr-stars {
    position: absolute;
    inset: 0;
    transform: translate3d(calc(var(--itr-brand-mouse-x) * 0.03), calc(var(--itr-brand-mouse-y) * 0.03), 0);
    animation: itr-stars-drift 42s ease-in-out infinite;
}

.itr-star {
    position: absolute;
    left: var(--x);
    top: var(--y);
    width: 2.4px;
    height: 2.4px;
    border-radius: 999px;
    background: rgba(241, 245, 249, 0.88);
    box-shadow: 0 0 16px rgba(125, 211, 252, 0.56);
    opacity: 0.44;
    animation: itr-star-pulse 6.6s ease-in-out infinite, itr-star-drift 20s ease-in-out infinite;
    animation-delay: var(--d);
}

.brand-motion-host.motion-boost .itr-aurora {
    opacity: var(--itr-motion-opacity-hover);
}

@supports (background: color-mix(in srgb, #fff 50%, transparent)) {
    .itr-aurora {
        background: radial-gradient(circle at 30% 30%, color-mix(in srgb, var(--itr-glow) 55%, transparent), transparent 62%),
                    radial-gradient(circle at 70% 70%, color-mix(in srgb, var(--itr-accent) 45%, transparent), transparent 62%);
    }

    .itr-aurora--three {
        background: radial-gradient(circle at 30% 30%, color-mix(in srgb, var(--itr-accent-2) 55%, transparent), transparent 62%),
                    radial-gradient(circle at 70% 70%, color-mix(in srgb, var(--itr-accent) 40%, transparent), transparent 62%);
    }
}

@keyframes itr-aurora-drift {
    0% {
        transform: translate3d(0, 0, 0) scale(1);
    }
    50% {
        transform: translate3d(10%, -8%, 0) scale(1.16);
    }
    100% {
        transform: translate3d(0, 0, 0) scale(1);
    }
}

@keyframes itr-grid-float {
    0% { transform: translateY(0); }
    50% { transform: translateY(-14px); }
    100% { transform: translateY(0); }
}

@keyframes itr-sheen-drift {
    0% { transform: translate3d(-9%, -6%, 0) rotate(-3deg); }
    50% { transform: translate3d(9%, 7%, 0) rotate(3deg); }
    100% { transform: translate3d(-9%, -6%, 0) rotate(-3deg); }
}

@keyframes itr-particle-float {
    0% {
        transform: translate3d(0, 0, 0);
        opacity: 0.4;
    }
    50% {
        transform: translate3d(0, -20px, 0);
        opacity: 0.75;
    }
    100% {
        transform: translate3d(0, 0, 0);
        opacity: 0.4;
    }
}

@keyframes itr-star-pulse {
    0% { opacity: 0.2; transform: scale(1); }
    30% { opacity: 0.7; transform: scale(1.55); }
    60% { opacity: 0.35; transform: scale(1.05); }
    100% { opacity: 0.2; transform: scale(1); }
}

@keyframes itr-star-drift {
    0% { transform: translate3d(0, 0, 0); }
    50% { transform: translate3d(0, -11px, 0); }
    100% { transform: translate3d(0, 0, 0); }
}

@keyframes itr-stars-drift {
    0% { transform: translate3d(calc(var(--itr-brand-mouse-x) * 0.03), calc(var(--itr-brand-mouse-y) * 0.03), 0); }
    50% { transform: translate3d(calc(var(--itr-brand-mouse-x) * 0.05 + 12px), calc(var(--itr-brand-mouse-y) * 0.05 - 9px), 0); }
    100% { transform: translate3d(calc(var(--itr-brand-mouse-x) * 0.03), calc(var(--itr-brand-mouse-y) * 0.03), 0); }
}

@keyframes itr-glow-sweep {
    0% {
        transform: translate3d(-9%, -7%, 0) rotate(0deg);
        opacity: 0.56;
    }
    50% {
        transform: translate3d(6%, 8%, 0) rotate(10deg);
        opacity: 0.82;
    }
    100% {
        transform: translate3d(-9%, -7%, 0) rotate(0deg);
        opacity: 0.56;
    }
}

@media (max-width: 992px) {
    .brand-motion-host {
        --itr-motion-opacity: 0.54;
        --itr-motion-opacity-hover: 0.58;
    }

    .itr-aurora {
        filter: blur(34px);
    }

    .itr-particles,
    .itr-stars {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .itr-aurora,
    .itr-grid,
    .itr-particle,
    .itr-stars,
    .itr-star,
    .itr-brand-motion::after,
    .itr-sheen {
        animation: none !important;
    }

    .itr-particles,
    .itr-stars {
        display: none !important;
    }
}