body {
    background-color: #0d0d1a;
    color: #a0b1c5;
}
.page-container {
    width: 100%;
    min-height: 100vh;
    padding-bottom: 50px;
}
.main-content-wrapper {
    max-width: 1100px;
    margin: 40px auto 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 10;
}
.content-grid {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 32px;
}
.left-sidebar {
    flex-shrink: 0;
}

.sidebar-card {
    background-color: #151f2e;
    border-radius: 8px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    border: 1px solid rgba(148, 163, 184, 0.1);
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 10px;
    border-radius: 6px;
    background-color: rgba(0,0,0,0.2);
}
.stat-item .stat-label {
    font-size: 0.8rem;
    color: #94a3b8;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 6px;
}
.stat-item .stat-value {
    font-size: 1.1rem;
    color: white;
    font-weight: 600;
}
.stat-item .stat-value.prize {
    font-size: 0.9rem;
    line-height: 1.5;
    color: #d1d5db;
}

.right-content {
    min-width: 0;
}
.contest-title {
    font-size: 2.25rem;
    font-weight: bold;
    color: white;
    margin-bottom: 24px;
}

.section {
    margin-top: 32px;
    background-color: #151f2e;
    border-radius: 8px;
    padding: 24px;
    border: 1px solid rgba(148, 163, 184, 0.1);
}
.section-title {
    color: white;
    font-weight: 600;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(148, 163, 184, 0.1);
}

.description {
    line-height: 1.7;
    color: #d1d5db;
}

.action-area {
    margin-top: 32px;
}

.action-area .alert {
    border-radius: 8px;
    padding: 1.5rem;
    font-size: 1.1rem;
}

.action-area .btn-lg {
    padding: 0.8rem 2rem;
    font-weight: 600;
    border-radius: 8px;
}

.winner-card {
    background-color: #151f2e;
    border: 1px solid #22c55e;
    box-shadow: 0 0 25px rgba(34, 197, 94, 0.2);
}
.winner-card .card-header {
    background-color: rgba(34, 197, 94, 0.2);
    color: #f0fdf4;
}
.winner-card .card-header h4 {
    color: #f0fdf4;
}
.winner-card .card-body {
    background-color: #151f2e;
}
.winner-card .card-title a {
    color: #a78bfa;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.5rem;
}
.winner-card .card-title a:hover {
    text-decoration: underline;
}
.winner-card .card-text {
    color: #d1d5db;
    font-size: 1.1rem;
}

@media (max-width: 992px) {
    .main-content-wrapper {
        padding: 0 16px;
    }
    .content-grid {
        grid-template-columns: 200px 1fr;
        gap: 24px;
    }
    .contest-title {
        font-size: 1.875rem;
    }
}

@media (max-width: 768px) {
    .main-content-wrapper {
        margin-top: 24px;
    }
    .content-grid {
        grid-template-columns: 1fr;
    }
    .left-sidebar {
        order: 2;
    }
    .right-content {
        order: 1;
    }
    .contest-title {
        font-size: 1.5rem;
        text-align: center;
    }
    .sidebar-card {
        display: grid;
        grid-template-columns: 1fr 1fr;
    }
}

.alert-info {
    background-color: rgba(59, 130, 246, 0.1);
    border-color: rgba(59, 130, 246, 0.3);
    color: #dbeafe;
}
.alert-warning {
    background-color: rgba(245, 158, 11, 0.1);
    border-color: rgba(245, 158, 11, 0.3);
    color: #fef3c7;
}
.alert-secondary {
    background-color: rgba(107, 114, 128, 0.1);
    border-color: rgba(107, 114, 128, 0.3);
    color: #e5e7eb;
}
.alert-success {
    background-color: rgba(34, 197, 94, 0.1);
    border-color: rgba(34, 197, 94, 0.3);
    color: #dcfce7;
}