/* Estilos modernos para cards circulares (reutilizados de licitacoes.php) */
    .card-licitacao {
        transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        border: 3px solid #e5e7eb;
        box-shadow: 0 4px 12px rgba(0,0,0,0.08);
        background: linear-gradient(135deg, #ffffff 0%, #f9fafb 100%);
        position: relative;
        overflow: visible;
        width: 160px;
        height: 160px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin: 0 auto;
    }
    
    .card-licitacao:hover {
        transform: translateY(-12px) scale(1.05);
        box-shadow: 0 16px 40px rgba(59, 130, 246, 0.3);
        border-color: #e5e7eb;
    }
    
    .card-licitacao i {
        transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        color: #3b82f6;
    }
    
    .card-licitacao:hover i {
        transform: scale(1.2) rotateY(360deg);
        color: #2563eb;
    }
    
    .card-licitacao .texto-secretarias {
        transition: all 0.3s ease;
        color: #1f2937;
        font-weight: 600;
        font-size: 1.1rem;
        margin-top: 10px;
    }
    
    .card-licitacao:hover .texto-secretarias {
        color: #3b82f6;
        transform: scale(1.05);
    }
    
    /* Efeito de pulso sutil */
    .card-licitacao::after {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        width: 0;
        height: 0;
        border-radius: 50%;
        background: rgba(59, 130, 246, 0.1);
        transform: translate(-50%, -50%);
        transition: width 0.6s ease, height 0.6s ease;
    }
    
    .card-licitacao:hover::after {
        width: 120%;
        height: 120%;
    }
    
    /* Animação de entrada */
    .card-licitacao {
        animation: fadeInScale 0.6s ease-out forwards;
        opacity: 0;
    }
    
    @keyframes fadeInScale {
        from {
            opacity: 0;
            transform: scale(0.8) translateY(30px);
        }
        to {
            opacity: 1;
            transform: scale(1) translateY(0);
        }
    }
    
    /* Delays para animação em cascata */
    .col-sm-6:nth-child(1) .card-licitacao { animation-delay: 0.1s; }
    .col-sm-6:nth-child(2) .card-licitacao { animation-delay: 0.2s; }
    .col-sm-6:nth-child(3) .card-licitacao { animation-delay: 0.3s; }
    
    /* Container com gradiente de fundo */
    .container-licitacoes {
        background: linear-gradient(to bottom, #f9fafb 0%, #ffffff 50%, #f9fafb 100%);
        padding: 3rem 0;
        border-radius: 20px;
    }
    
    /* Título da página */
    .titulo-licitacoes {
        font-size: 2.5rem;
        font-weight: 700;
        color: #1f2937;
        text-align: center;
        margin-bottom: 3rem;
        position: relative;
        padding-bottom: 1rem;
    }
    
    .titulo-licitacoes::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 50%;
        transform: translateX(-50%);
        width: 120px;
        height: 4px;
        background: linear-gradient(90deg, #3b82f6, #2563eb, #1d4ed8);
        border-radius: 2px;
    }