/* Banner Style */
.sponsor-banner-smk {
    text-align: center;
    margin: 20px auto;
    padding: 20px;
    border-radius: 16px;
    box-shadow: 0 0 25px rgba(0,0,0,0.3);
    background: linear-gradient(145deg, #f0f0f0, #e0e0e0);
    max-width: 500px;
    position: relative;
    animation: float 4s ease-in-out infinite;
    transform-style: preserve-3d;
}

.animated-banner-img {
    max-width: 100%;
    border-radius: 12px;
    animation: pulse 2s infinite alternate;
}

.btn-3d {
    display: inline-block;
    margin-top: 20px;
    padding: 12px 24px;
    background: #4CAF50;
    color: white;
    font-weight: bold;
    border: none;
    border-radius: 10px;
    text-decoration: none;
    box-shadow: 0 8px #388E3C;
    transition: all 0.3s ease;
}

.btn-3d:hover {
    box-shadow: 0 4px #2e7d32;
    transform: translateY(2px);
}

@keyframes float {
    0% { transform: translateY(0px) rotateX(0deg); }
    50% { transform: translateY(-10px) rotateX(3deg); }
    100% { transform: translateY(0px) rotateX(0deg); }
}

@keyframes pulse {
    0% { transform: scale(1); }
    100% { transform: scale(1.03); }
}