body {
    font-family: 'Montserrat', sans-serif;
    scroll-behavior: smooth;
    background-color: #050505;
    background-image:
        radial-gradient(circle at 15% 30%, rgba(59, 130, 246, 0.08), transparent 25%),
        /* UPDATED: Right ambient glow is now Purple */
        radial-gradient(circle at 85% 70%, rgba(168, 85, 247, 0.08), transparent 25%);
    background-attachment: fixed;
}

@keyframes float {
    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

.animate-float {
    animation: float 5s ease-in-out infinite;
}

.glass-panel {
    background: rgba(15, 15, 15, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.bg-grid {
    background-size: 50px 50px;
    background-image:
        linear-gradient(to right, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
}

body::before,
body::after {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: -1;
}

body::before {
    background:
        radial-gradient(circle at 20% 15%, rgba(56, 189, 248, 0.14), transparent 30%),
        radial-gradient(circle at 80% 20%, rgba(168, 85, 247, 0.12), transparent 30%),
        radial-gradient(circle at 50% 85%, rgba(59, 130, 246, 0.10), transparent 34%);
    filter: blur(20px);
    animation: ambientDrift 18s ease-in-out infinite alternate;
}

.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease-out, transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
    will-change: opacity, transform;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.bento-card {
    --mouse-x: 50%;
    --mouse-y: 50%;
}

.bento-card::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: radial-gradient(
        800px circle at var(--mouse-x) var(--mouse-y),
        rgba(255, 255, 255, 0.12),
        transparent 40%
    );
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
    z-index: 2;
}

.bento-card:hover::before {
    opacity: 1;
}

.bento-card > * {
    position: relative;
    z-index: 3;
}

.partner-strip {
    position: relative;
    overflow: hidden;
    width: 100%;
}

.partner-track {
    display: flex;
    align-items: center;
    gap: 2.5rem;
    width: max-content;
    min-width: 100%;
    flex-wrap: nowrap;
    transition: transform 0.9s cubic-bezier(0.22, 1, 0.36, 1);
    will-change: transform;
}

.partner-track.is-snapping {
    transition: none;
}

.partner-item {
    flex: 0 0 auto;
    white-space: nowrap;
    transition: color 0.6s ease, transform 0.6s ease, opacity 0.6s ease, filter 0.6s ease;
    opacity: 0.7;
    transform: scale(0.92);
    filter: blur(0.2px);
}

.partner-item.is-active {
    opacity: 1;
    transform: scale(1);
    filter: none;
}

/* 1. Remove overflow-hidden from the section ID in your HTML (see step 2) */

.event-stack {
    display: flex;
    flex-direction: column;
    gap: 0;
    position: relative;
}

.event-stack-card {
    position: sticky;
    top: 10vh;
    padding-top: var(--stack-padding, 0rem);
    z-index: var(--stack-z, 1);
    list-style: none;
    will-change: transform;
}

.event-card-inner {
    background: #050505;
    min-height: 500px;
}

.stack-card-1 {
    --stack-padding: 0rem;
    --stack-accent: 59 130 246;
    --stack-z: 1;
}

.stack-card-2 {
    --stack-padding: 1.25rem;
    --stack-accent: 34 197 94;
    --stack-z: 2;
}

.stack-card-3 {
    --stack-padding: 2.5rem;
    --stack-accent: 245 158 11;
    --stack-z: 3;
}

.stack-card-4 {
    --stack-padding: 3.75rem;
    --stack-accent: 244 63 94;
    --stack-z: 4;
}

.stack-card-5 {
    --stack-padding: 5rem;
    --stack-accent: 249 115 22;
    --stack-z: 5;
}

.stack-card-6 {
    --stack-padding: 6.25rem;
    --stack-accent: 6 182 212;
    --stack-z: 6;
}

.stack-card-7 {
    --stack-padding: 7.5rem;
    --stack-accent: 217 70 239;
    --stack-z: 7;
}

.stack-card-8 {
    --stack-padding: 8.75rem;
    --stack-accent: 132 204 22;
    --stack-z: 8;
}

.stack-card-9 {
    --stack-padding: 10rem;
    --stack-accent: 99 102 241;
    --stack-z: 9;
}

.stack-card-10 {
    --stack-padding: 11.25rem;
    --stack-accent: 239 68 68;
    --stack-z: 10;
}

.card-inner {
    min-height: clamp(22rem, 58vh, 32rem);
    overflow: hidden;
    border-radius: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: linear-gradient(135deg, rgba(var(--stack-accent, 255 255 255), 0.18), rgba(5, 5, 5, 0.88) 48%),
        rgba(10, 10, 10, 0.95);
    box-shadow: 0 -20px 40px -20px rgba(0, 0, 0, 0.5), 0 30px 70px -35px rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    position: relative;
}

.slide {
    transition: all 0.6s cubic-bezier(0.25, 1, 0.5, 1);
    will-change: transform, opacity;
}

.slide-active {
    z-index: 20;
    opacity: 1;
    transform: translateY(-50%) translateX(0) scale(1);
    right: 3rem;
}

.slide-next {
    z-index: 10;
    opacity: 1;
    transform: translateY(-50%) translateX(2rem) scale(0.9);
    right: 0;
    cursor: pointer;
}

.slide-hidden {
    z-index: 0;
    opacity: 0;
    transform: translateY(-50%) translateX(6rem) scale(0.8);
    right: 0;
    pointer-events: none;
}

@media (min-width: 1024px) {
    .slide-active {
        right: 9rem;
    }

    .slide-next {
        transform: translateY(-50%) translateX(2rem) scale(0.9);
    }
}

@media (min-width: 768px) {
    .partner-track {
        gap: 4.5rem;
    }

    .event-stack-card + .event-stack-card {
        margin-top: 2rem;
    }
}