/* Flip Card Styles */
.stat-card {
    padding: 0;
    border-radius: 20px;
    position: relative;
    background: transparent;
    aspect-ratio: 1;
    cursor: pointer;
    perspective: 1000px;
    animation: float 6s ease-in-out infinite;
}

.stat-card:nth-child(1) { animation-delay: 0s; }
.stat-card:nth-child(2) { animation-delay: 1.5s; }
.stat-card:nth-child(3) { animation-delay: 3s; }
.stat-card:nth-child(4) { animation-delay: 4.5s; }

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.stat-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.stat-card.flipped .stat-card-inner {
    transform: rotateY(180deg);
}

.stat-card-front,
.stat-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 20px;
    overflow: hidden;
}

.stat-card-front {
    background: transparent;
}

.stat-card-back {
    transform: rotateY(180deg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    padding: 1rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.stat-card:nth-child(1) .stat-card-back {
    background: linear-gradient(135deg, #3b82f6 0%, #1e40af 100%);
}

.stat-card:nth-child(2) .stat-card-back {
    background: linear-gradient(135deg, #8b5cf6 0%, #6d28d9 100%);
}

.stat-card:nth-child(3) .stat-card-back {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.stat-card:nth-child(4) .stat-card-back {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.stat-card-back i {
    font-size: clamp(2.5rem, 8vw, 3.5rem);
    margin-bottom: 1rem;
    color: white;
}

.stat-card-back .stat-number {
    font-size: clamp(2.5rem, 8vw, 3.5rem);
    font-weight: 800;
    line-height: 1;
    margin-bottom: 0.5rem;
    color: white;
}

.stat-card-back .stat-label {
    font-size: clamp(1rem, 3vw, 1.2rem);
    font-weight: 600;
    color: rgba(255, 255, 255, 0.95);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    border-radius: 20px;
}