/* ==========================================================================
   MASTER BACKGROUND ENGINE: SAAS NORTH 2026
   ========================================================================== */

.sn-bg-engine {
    background-color: #030305 !important;
    position: absolute;
    inset: 0;
    z-index: 1;
    overflow: hidden;
    pointer-events: none;
}

/* THE CANVAS: Base configuration */
.sn-bg-canvas {
    display: block !important;
    position: absolute;
    top: -10%; 
    left: -10%;
    width: 120% !important; 
    height: 120% !important;
    opacity: 0;
    transition: opacity 1.5s ease-in;
    pointer-events: none;
}

/* 1. SHARP GEOMETRIC LAYER: Galaxy, Particles, Stars, and Nodes
   These must remain sharp and sit on top of the atmosphere. */
.sn-bg-canvas--galaxy,
.sn-bg-canvas--particles,
.sn-bg-canvas--stars,
.sn-bg-canvas--node_network {
    filter: none !important;
    transform: scale(1) !important;
    z-index: 25 !important; /* Above everything else */
}

/* 2. ATMOSPHERIC LAYER: Aurora & Multi-Color Aurora Rays
   Aurora uses low-res canvas rendering for softness (no CSS blur needed).
   Aurora_rays still uses CSS blur for its effect. */
.sn-bg-canvas--aurora {
    z-index: 5 !important;
    /* NO filter: blur() — softness comes from low-res canvas rendering.
       CSS blur caused GPU compositing artifacts (flickering rectangles). */
    transform: scale(1.15) translateY(-4%) !important;
    mix-blend-mode: screen;
    image-rendering: auto; /* Ensure smooth bilinear upscaling */
}
.sn-bg-canvas--aurora_rays {
    z-index: 5 !important;
    filter: blur(75px) !important;
    transform: scale(1.3) translateY(-6%) translateZ(0) !important;
    mix-blend-mode: screen;
    backface-visibility: hidden;
    perspective: 1000px;
    will-change: transform, filter;
}

/* 3. SPOTLIGHT LAYER: Conical Light Rays
   Medium blur to maintain "beam" definition. */
.sn-bg-canvas--light_rays {
    z-index: 5 !important;
    filter: blur(20px) !important; 
    transform: scale(1.1) translateY(-2%) translateZ(0) !important;
    mix-blend-mode: screen;
    will-change: transform, filter;
}

/* Generic Ignition: Fades in when JS is ready */
.sn-bg-canvas.is-ready {
    opacity: 1 !important;
}

/* 4. GLOW LAYER: Pulsating Center Glow */
.sn-engine-glow {
    position: absolute;
    inset: 0;
    z-index: 10; /* Sits between waves and stars */
    background: radial-gradient(circle at 50% 45%, rgba(235,158,88, var(--glow-opacity, 0.45)) 0%, transparent 65%);
    mix-blend-mode: screen;
    animation: snGlowPulse var(--glow-speed, 6s) ease-in-out infinite;
}

/* 5. OVERLAY LAYER: Linear Dark Vignette */
.sn-engine-overlay {
    position: absolute;
    inset: 0;
    z-index: 5;
    background: linear-gradient(180deg, rgba(0,0,0,0.4) 0%, transparent 50%, rgba(0,0,0,0.6) 100%);
}

@keyframes snGlowPulse {
    0%, 100% { transform: scale(1); opacity: 0.6; }
    50% { transform: scale(1.1); opacity: 0.9; }
}

/* CONTENT TRANSPARENCY FIX */
.sn-home-hero__content-wrap, 
.sn-home-hero__content,
.sn-home-hero__title-wrap,
.sn-home-hero__description,
.sn-advanced-hero .container,
.sn-blog-grid-block .container {
    background: transparent !important;
    background-color: transparent !important;
    border: none !important;
    box-shadow: none !important;
}
/* ==========================================================================
   GRAINIENT MODE (Animated Mesh + SVG Grain)
   ========================================================================== */

.sn-bg-mode-grainient {
    background: #030305 !important;
}

/* The Grain Texture Overlay */
.sn-bg-mode-grainient::before {
    content: "";
    position: absolute;
    inset: -100%;
    z-index: 2;
    background: #fff;
    filter: url(#grain-filter); /* Links to the SVG in background-engine.php */
    opacity: var(--grain-opacity, 0.1);
    pointer-events: none;
}

/* The Shifting Mesh */
.sn-bg-canvas--grainient {
    /* INCREASE BLUR: Softens the color circles into a liquid mesh */
    filter: blur(140px) !important; 
    opacity: 0.6 !important;
    
    /* THE MESH FIX: Overlapping radial circles instead of a flat linear line */
    background-color: var(--aurora-color-1) !important;
    background-image: 
        radial-gradient(at 10% 10%, var(--aurora-color-2) 0px, transparent 50%),
        radial-gradient(at 90% 10%, var(--aurora-color-3) 0px, transparent 50%),
        radial-gradient(at 50% 50%, var(--aurora-color-2) 0px, transparent 50%),
        radial-gradient(at 10% 90%, var(--aurora-color-3) 0px, transparent 50%),
        radial-gradient(at 90% 90%, var(--aurora-color-2) 0px, transparent 50%) !important;
    
    background-size: 200% 200% !important;
    animation: snGrainientShift var(--gradient-speed, 12s) ease-in-out infinite alternate !important;
    transform: scale(1.4) !important;
}

@keyframes snGrainientShift {
    0% { background-position: 0% 0%; }
    50% { background-position: 100% 100%; }
    100% { background-position: 0% 100%; }
}
/* ==========================================================================
   MOBILE ADAPTIVE OVERRIDES (640px - 991px)
   ========================================================================== */
@media (max-width: 991px) {
    /* Prevent animations from being pushed off the narrow screen */
    .sn-bg-canvas {
        top: 0 !important;
        left: 0 !important;
        width: 100% !important;
        height: 100% !important;
        transform: none !important; 
    }

    /* Aurora: restore scale for softness, CSS blur dissolves wave mask edges */
    .sn-bg-canvas--aurora {
        filter: blur(12px) !important;
        transform: scale(1.18) !important;
        image-rendering: auto;
    }
    /* Aurora rays still uses CSS blur */
    .sn-bg-canvas--aurora_rays {
        filter: blur(35px) !important;
    }

    .sn-bg-canvas--light_rays {
        filter: blur(12px) !important;
    }
	.sn-hide-glow-mobile .sn-engine-glow {
        display: none !important;
        opacity: 0 !important;
        visibility: hidden !important;
    }
}