.sponsor-card{background:#fff;border-radius:12px;padding:2rem;display:flex;align-items:center;justify-content:center;min-height:150px;position:relative;overflow:hidden;transition:all .3s ease}.sponsor-card:hover{box-shadow:0 10px 30px rgba(0,0,0,.1);transform:translateY(-5px)}.sponsor-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,#667eea 0%,#764ba2 100%);transform:scaleX(0);transition:transform .3s ease}.sponsor-card:hover::before{transform:scaleX(1)}.level-platinum .sponsor-card{min-height:200px;background:linear-gradient(135deg,#f5f5f5 0%,#e8e8e8 100%)}.level-platinum .sponsor-card::before{background:linear-gradient(90deg,#e5e4e2 0%,#c0c0c0 100%);height:6px}.level-gold .sponsor-card{min-height:180px;background:linear-gradient(135deg,#fffef7 0%,#fff9e6 100%)}.level-gold .sponsor-card::before{background:linear-gradient(90deg,#ffd700 0%,#ffed4e 100%);height:5px}.level-silver .sponsor-card{min-height:160px;background:linear-gradient(135deg,#fafafa 0%,#f0f0f0 100%)}.level-silver .sponsor-card::before{background:linear-gradient(90deg,#c0c0c0 0%,#d3d3d3 100%)}.level-bronze .sponsor-card{min-height:140px;background:linear-gradient(135deg,#fff8f5 0%,#ffede6 100%)}.level-bronze .sponsor-card::before{background:linear-gradient(90deg,#cd7f32 0%,#b87333 100%)}.level-badge{position:absolute;top:10px;right:10px;padding:4px 12px;border-radius:20px;font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.level-platinum .level-badge{background:linear-gradient(135deg,#e5e4e2 0%,#c0c0c0 100%);color:#333}.level-gold .level-badge{background:linear-gradient(135deg,#ffd700 0%,#ffed4e 100%);color:#333}.level-silver .level-badge{background:linear-gradient(135deg,#c0c0c0 0%,#d3d3d3 100%);color:#333}.level-bronze .level-badge{background:linear-gradient(135deg,#cd7f32 0%,#b87333 100%);color:#fff}@keyframes scroll{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}.sponsors-scroll{animation:scroll 30s linear infinite}.sponsors-scroll:hover{animation-play-state:paused}.sponsors-grid{display:grid;gap:2rem}.sponsors-grid-platinum{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}.sponsors-grid-gold{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}.sponsors-grid-silver{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}.sponsors-grid-bronze{grid-template-columns:repeat(auto-fit,minmax(150px,1fr))}.sponsor-info{position:absolute;bottom:-100%;left:0;right:0;background:rgba(0,0,0,.9);color:#fff;padding:1rem;transition:bottom .3s ease}.sponsor-card:hover .sponsor-info{bottom:0}