/* ============================================ */
/* ULTRA-PREMIUM ANIMATED BACKGROUND */
/* Advanced techniques inspired by sparkle-show */
/* Morphing blobs, ripples, waves, shimmer */
/* ============================================ */

/* LAYER 1: Base gradient foundation */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom right, var(--bg-primary) 0%, #0d0a12 25%, #0a0a0a 100%);
    z-index: -5;
}

/* LAYER 2: Dynamic multi-blob system with morphing */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 40%, rgba(217, 70, 239, 0.25) 0%, transparent 40%),
        radial-gradient(circle at 80% 75%, rgba(224, 121, 249, 0.18) 0%, transparent 40%),
        radial-gradient(circle at 50% 15%, rgba(192, 38, 211, 0.15) 0%, transparent 35%);
    animation: blobMorph 25s ease-in-out infinite;
    z-index: -4;
    pointer-events: none;
    filter: blur(0.5px);
}

/* ============================================ */
/* MORPHING BLOB ELEMENTS */
/* ============================================ */

.morph-blob-1 {
    position: fixed;
    top: 0;
    left: 0;
    width: 800px;
    height: 800px;
    background: radial-gradient(ellipse at center, rgba(217, 70, 239, 0.2) 0%, rgba(217, 70, 239, 0.05) 50%, transparent 80%);
    border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
    animation: morph 20s ease-in-out infinite;
    filter: blur(60px);
    z-index: -3;
    pointer-events: none;
    opacity: 0.6;
}

.morph-blob-2 {
    position: fixed;
    top: 25%;
    right: 0;
    width: 900px;
    height: 900px;
    background: radial-gradient(ellipse at center, rgba(224, 121, 249, 0.15) 0%, rgba(224, 121, 249, 0.03) 50%, transparent 80%);
    border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%;
    animation: morphDelayed 25s ease-in-out infinite reverse;
    animation-delay: -5s;
    filter: blur(50px);
    z-index: -3;
    pointer-events: none;
    opacity: 0.5;
}

.morph-blob-3 {
    position: fixed;
    bottom: 0;
    left: 33%;
    width: 700px;
    height: 700px;
    background: radial-gradient(ellipse at center, rgba(192, 38, 211, 0.1) 0%, rgba(192, 38, 211, 0.02) 50%, transparent 80%);
    border-radius: 50% 50% 30% 70% / 30% 70% 50% 50%;
    animation: drift 30s ease-in-out infinite;
    filter: blur(55px);
    z-index: -3;
    pointer-events: none;
    opacity: 0.4;
}

/* ============================================ */
/* WAVE ANIMATION LAYER */
/* ============================================ */

.wave-layer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 384px;
    background: linear-gradient(to top, rgba(217, 70, 239, 0.3) 0%, rgba(217, 70, 239, 0.1) 30%, transparent 100%);
    animation: wave 8s ease-in-out infinite;
    z-index: -2;
    pointer-events: none;
    opacity: 0.2;
}

/* ============================================ */
/* SHIMMER OVERLAY */
/* ============================================ */

.shimmer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(217, 70, 239, 0.08) 25%,
        rgba(224, 121, 249, 0.1) 50%,
        rgba(217, 70, 239, 0.08) 75%,
        transparent 100%
    );
    background-size: 200% 100%;
    animation: shimmer 3s linear infinite;
    z-index: -1;
    pointer-events: none;
    opacity: 0.3;
}



/* ============================================ */
/* GRID PATTERN WITH RADIAL MASK */
/* ============================================ */

.grid-pattern {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(217, 70, 239, 0.3) 1px, transparent 1px),
        linear-gradient(90deg, rgba(217, 70, 239, 0.3) 1px, transparent 1px);
    background-size: 80px 80px;
    background-position: 0 0;
    -webkit-mask-image: radial-gradient(ellipse 60% 60% at 50% 50%, black 40%, transparent 100%);
    mask-image: radial-gradient(ellipse 60% 60% at 50% 50%, black 40%, transparent 100%);
    z-index: -2;
    pointer-events: none;
    opacity: 0.03;
}

/* ============================================ */
/* DIAGONAL LIGHT STREAKS */
/* ============================================ */

.light-streak-1 {
    position: fixed;
    top: -50%;
    right: -10%;
    width: 1px;
    height: 200%;
    background: linear-gradient(to bottom, transparent, rgba(217, 70, 239, 1), transparent);
    transform: rotate(45deg);
    animation: driftSlow 40s ease-in-out infinite;
    z-index: -1;
    pointer-events: none;
    opacity: 0.1;
}

.light-streak-2 {
    position: fixed;
    top: -50%;
    right: 20%;
    width: 1px;
    height: 200%;
    background: linear-gradient(to bottom, transparent, rgba(224, 121, 249, 1), transparent);
    transform: rotate(45deg);
    animation: drift 30s ease-in-out infinite;
    animation-delay: -5s;
    z-index: -1;
    pointer-events: none;
    opacity: 0.1;
}

/* ============================================ */
/* GLOW CIRCLES - AMBIENT */
/* ============================================ */

.glow-circle {
    position: fixed;
    border-radius: 50%;
    z-index: -1;
    pointer-events: none;
}

.glow-circle-1 {
    width: 400px;
    height: 400px;
    top: 10%;
    right: 5%;
    background: radial-gradient(circle at 30% 30%, rgba(217, 70, 239, 0.15) 0%, transparent 70%);
    animation: float 15s ease-in-out infinite;
    filter: blur(40px);
    box-shadow: 0 0 60px rgba(217, 70, 239, 0.15);
}

.glow-circle-2 {
    width: 350px;
    height: 350px;
    bottom: 15%;
    left: 10%;
    background: radial-gradient(circle at 30% 30%, rgba(224, 121, 249, 0.12) 0%, transparent 70%);
    animation: float 18s ease-in-out infinite 2s;
    filter: blur(35px);
    box-shadow: 0 0 50px rgba(224, 121, 249, 0.12);
}

.glow-circle-3 {
    width: 300px;
    height: 300px;
    top: 50%;
    right: 10%;
    background: radial-gradient(circle at 30% 30%, rgba(192, 38, 211, 0.1) 0%, transparent 70%);
    animation: float 20s ease-in-out infinite 4s;
    filter: blur(38px);
    box-shadow: 0 0 45px rgba(192, 38, 211, 0.1);
}

/* ============================================ */
/* VIGNETTE EFFECT */
/* ============================================ */

.vignette {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, transparent 0%, rgba(10, 10, 10, 0.4) 70%, rgba(10, 10, 10, 0.8) 100%);
    z-index: -1;
    pointer-events: none;
}

/* ============================================ */
/* KEYFRAME ANIMATIONS */
/* ============================================ */

@keyframes morph {
    0%, 100% {
        border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
    }
    25% {
        border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%;
    }
    50% {
        border-radius: 50% 50% 30% 70% / 30% 70% 50% 50%;
    }
    75% {
        border-radius: 70% 30% 50% 50% / 40% 50% 60% 50%;
    }
}

@keyframes morphDelayed {
    0%, 100% {
        border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%;
    }
    25% {
        border-radius: 50% 50% 30% 70% / 30% 70% 50% 50%;
    }
    50% {
        border-radius: 70% 30% 50% 50% / 40% 50% 60% 50%;
    }
    75% {
        border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
    }
}

@keyframes wave {
    0%, 100% {
        clip-path: polygon(
            0% 45%, 10% 50%, 20% 48%, 30% 52%, 40% 50%,
            50% 48%, 60% 50%, 70% 52%, 80% 48%, 90% 50%,
            100% 45%, 100% 100%, 0% 100%
        );
    }
    50% {
        clip-path: polygon(
            0% 50%, 10% 48%, 20% 52%, 30% 48%, 40% 50%,
            50% 52%, 60% 48%, 70% 50%, 80% 52%, 90% 48%,
            100% 50%, 100% 100%, 0% 100%
        );
    }
}

@keyframes drift {
    0%, 100% {
        opacity: 0.4;
    }
    50% {
        opacity: 0.5;
    }
}

@keyframes driftSlow {
    0%, 100% {
        opacity: 0.08;
        transform: rotate(45deg);
    }
    50% {
        opacity: 0.12;
        transform: rotate(45deg);
    }
}

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

@keyframes float {
    0%, 100% {
        opacity: 0.5;
    }
    50% {
        opacity: 0.65;
    }
}

@keyframes blobMorph {
    0%, 100% {
        opacity: 0.25;
    }
    50% {
        opacity: 0.35;
    }
}

/* ============================================ */
/* RESPONSIVE ADJUSTMENTS */
/* ============================================ */

@media (max-width: 1024px) {
    .morph-blob-1 { width: 500px; height: 500px; filter: blur(40px); }
    .morph-blob-2 { width: 550px; height: 550px; filter: blur(35px); }
    .morph-blob-3 { width: 450px; height: 450px; filter: blur(38px); }
    
    .glow-circle-1 { width: 250px; height: 250px; filter: blur(30px); }
    .glow-circle-2 { width: 220px; height: 220px; filter: blur(28px); }
    .glow-circle-3 { width: 200px; height: 200px; filter: blur(25px); }
}

@media (max-width: 768px) {
    body::after {
        background: 
            radial-gradient(circle at 20% 50%, rgba(217, 70, 239, 0.15) 0%, transparent 50%),
            radial-gradient(circle at 80% 80%, rgba(224, 121, 249, 0.08) 0%, transparent 50%);
    }
    
    .morph-blob-1 { width: 350px; height: 350px; opacity: 0.4; }
    .morph-blob-2 { width: 380px; height: 380px; opacity: 0.3; }
    .morph-blob-3 { width: 320px; height: 320px; opacity: 0.25; }
    
    .wave-layer { height: 250px; opacity: 0.15; }
    
    .glow-circle-2,
    .glow-circle-3 { display: none; }
    
    .light-streak-2 { display: none; }
    
    .grid-pattern { opacity: 0.02; }
}

@media (max-width: 480px) {
    body::after {
        background: 
            radial-gradient(circle at 20% 50%, rgba(217, 70, 239, 0.1) 0%, transparent 50%),
            radial-gradient(circle at 80% 80%, rgba(224, 121, 249, 0.05) 0%, transparent 50%);
    }
    
    .morph-blob-1,
    .morph-blob-2 { display: none; }
    
    .morph-blob-3 { width: 250px; height: 250px; opacity: 0.15; filter: blur(30px); }
    
    .wave-layer { height: 200px; opacity: 0.1; }
    
    .light-streak-1 { opacity: 0.05; }
    
    .shimmer-overlay { opacity: 0.15; }
    
    .vignette { background: radial-gradient(ellipse at center, transparent 0%, rgba(10, 10, 10, 0.5) 100%); }
}