.hero-section {
    background: #0a0e27;
    position: relative;
    overflow: hidden;
}

.hero-gradient {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(120, 119, 198, 0.3) 0%, transparent 50%), radial-gradient(circle at 80% 20%, rgba(255, 119, 198, 0.15) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.leaderboard-item {
    padding: 1rem 0;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.leaderboard-item:hover {
    background-color: rgba(0,0,0,0.02);
    border-radius: 8px;
    padding-left: 1rem;
    padding-right: 1rem;
}

.leaderboard-item.top-three {
    background: linear-gradient(90deg, rgba(255,215,0,0.1) 0%, rgba(255,255,255,0) 100%);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 0.5rem;
    border: 2px solid rgba(255,215,0,0.3);
}

.leaderboard-item:last-child {
    border-bottom: none;
}

.rank .badge {
    min-width: 40px;
}

.card {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    border: 1px solid rgba(0, 0, 0, 0.125);
    border-radius: 0.375rem;
}

.card-body {
    padding: 1rem;
}

.card-header {
    padding: 0.75rem 1rem;
    margin-bottom: 0;
    background-color: rgba(0, 0, 0, 0.03);
    border-bottom: 1px solid rgba(0, 0, 0, 0.125);
    border-top-left-radius: calc(0.375rem - 1px);
    border-top-right-radius: calc(0.375rem - 1px);
}

.text-center {
    text-align: center !important;
}

.text-white {
    color: #fff !important;
}

.text-muted {
    color: #6c757d !important;
}

.mb-0 {
    margin-bottom: 0 !important;
}

.mb-2 {
    margin-bottom: 0.5rem !important;
}

.mb-3 {
    margin-bottom: 1rem !important;
}

.mb-4 {
    margin-bottom: 1.5rem !important;
}

.py-4 {
    padding-top: 1.5rem !important;
    padding-bottom: 1.5rem !important;
}

.rounded {
    border-radius: 0.375rem !important;
}

.display-5 {
    font-size: calc(1.425rem + 2.1vw);
    font-weight: 300;
    line-height: 1.2;
}

.fw-bold {
    font-weight: 700 !important;
}

.lead {
    font-size: 1.25rem;
    font-weight: 300;
}