.sponsors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
    padding: 20px 0;
}

.sponsor-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    padding: 36px;
    text-align: center;
    position: relative;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(10px);
    animation: fadeInUp 0.6s ease forwards;
    opacity: 0;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.sponsor-card:hover {
    transform: translateY(-12px);
    border-color: var(--primary);
    box-shadow: 0 15px 40px rgba(255, 255, 255, 0.15);
    background: rgba(255, 255, 255, 0.05);
}

.sponsor-badge {
    position: absolute;
    top: 18px;
    right: 18px;
    font-size: 0.75rem;
    font-weight: 800;
    padding: 6px 14px;
    border-radius: 25px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-muted);
    border: 1px solid var(--card-border);
}

.tier-diamond .sponsor-badge { background: #b9f2ff; color: #000; }
.tier-platinum .sponsor-badge { background: #e5e4e2; color: #000; }
.tier-gold .sponsor-badge { background: #ffd700; color: #000; }

.sponsor-logo {
    width: 90px;
    height: 90px;
    background: linear-gradient(135deg, #2a2a2a, #111);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.2rem;
    font-weight: 900;
    margin: 0 auto 24px;
    color: var(--primary);
    border: 2px solid var(--card-border);
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.1);
}

.sponsor-name {
    font-size: 1.5rem;
    margin-bottom: 12px;
    color: #fff;
    font-weight: 700;
}

.sponsor-desc {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 25px;
    line-height: 1.6;
}

.sponsor-footer {
    display: flex;
    justify-content: space-around;
    margin-bottom: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--card-border);
}

.sponsor-info { display: flex; flex-direction: column; }
.sponsor-info .label { font-size: 0.7rem; text-transform: uppercase; color: var(--text-muted); }
.sponsor-info .value { font-weight: 700; color: var(--primary); }

/* Placeholder Cards Style */
.placeholder-card {
    background: var(--card-bg);
    border: 2px dashed var(--card-border);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 50px;
    border-radius: 24px;
    color: var(--text-muted);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(10px);
}

.placeholder-card:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: var(--primary);
    transform: scale(1.03);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.1);
}

.placeholder-card i {
    font-size: 3rem;
    margin-bottom: 15px;
    opacity: 0.5;
}

/* Benefits Preview */
.benefits-preview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 25px;
    margin-top: 60px;
    padding: 40px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    text-align: center;
    backdrop-filter: blur(10px);
}

html {
    scroll-behavior: smooth;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}